Abstract: Determining an active jacking force of a tunneling closely undercrossing existing station, includes: acquiring design parameters of stations, and geological parameters of a construction site; obtaining a stress solution expression of the active jacking force on the existing station to obtain a stress solution of any point in a semi-infinite space under the action of a vertical load, replacing the vertical load with a vertical load acting on the existing station, and obtain a vertical stress solution of the existing station; obtaining a relational expression between the deflection and the stress solution of the existing station; and substituting the stress solution expression of the active jacking force into the relational expression between the deflection and the stress solution of the existing station according to boundary conditions at both ends of a beam on elastic foundation to obtain the active jacking force that controls the deflection of the existing station.

Abstract: An embodiment describes a method for installing a single power cable span in a tunnel having an entrance and an exit. The method includes positioning a head portion of the single power cable span near the entrance and laying the single power cable span in the tunnel past the exit. The laying of the single power cable span comprises repeating a plurality of sub-steps until the head portion reaches an endpoint outside the tunnel. The plurality of sub-steps includes connecting a trolley at the entrance in a slidable manner on a rail longitudinally extending along the tunnel between the entrance and the exit, joining the trolley to a pulling rope and to the single power cable span, and moving the trolley along the rail by pulling the pulling rope by a predetermined length. Another embodiment relates to an equipment for installing a single cable span in a tunnel.

Abstract: The present invention discloses a pipeline automatic scale removal and storage device. The device comprises a scale remover, a scale storage device and a coupling; the scale remover is composed of a scale breaking mechanism, a cutting mechanism and a grinding mechanism; a plurality of groups of scale breaking teeth of the scale breaking mechanism can preliminarily break scale on an inner wall of a pipeline; the cutting mechanism cuts and eliminates the scale on the inner wall of the pipeline through a plurality of installed cutting blades; and a plurality of groups of grinding blocks of the grinding mechanism further grind and eliminate the scale on the pipeline; and the scale storage device is used for realizing storage for the scale. The scale storage device is hermetically and movably installed in the pipeline. The device of the present invention can automatically thoroughly eliminate the scale in the pipeline.

Abstract: Systems and methods are provided for performing site preparation work when building a single-axis tracker solar power plant. An installation and assembly machine is outfitted with a positioning system. At the time of installation, a reference laser is located at one end of an intended tracker row and is aligned positionally with an intended axis of rotation of the tracker (e.g., the tracker torque tube). The machine is moved to the first desired installation location based on the positioning information so that the laser beam impinges on a target on the machine. The distance between the laser and target is measured. A portion of the machine containing the target is moved with respect to the beam until the measured distance is equal to a predetermined distance. Once the correct distance is confirmed, the portion of the machine containing the target may be moved to confirm that the machine mast is oriented correctly in other axes including Y, Z and yaw.

Abstract: A barrier for restriction of passage across or through a body of water, the barrier including a plurality of interconnected buoyant bodies which are spaced apart from one another in a longitudinal array, a plurality of deterrent components on or between the buoyant bodies and obstructive material which in use extends downwardly from the buoyant bodies.

Abstract: A flood barrier module that is light, easy to install, easy to remove or stow, and resistant to softening of underlying ground includes an inclined front wall penetrated by holes near a top thereof, as well as side walls, a rear wall, and a base wall, which together surround a substantially watertight interior. The module is initially anchored by its own weight and/or by stakes or similar means. When impacted by flood waters that rise higher than the holes, the module is filled with flood water that is retained within the interior, such that the weight of the retained water anchors it to the ground, even if the ground becomes softened. Embodiments can be folded or disassembled and stacked into a flat, stowed configuration. The module can be installed in a sump or pit, and can be at or below grade when stowed.

Abstract: A drilling and bolting rig includes a carousel rotatable about a carousel axis and including a plurality of stations configured to support a plurality of consumables, one or more actuators, and a position sensor coupled to the carousel. The one or more actuators are configured to rotate the carousel about the carousel axis. The drilling and bolting rig further includes an electronic processor coupled to the one or more actuators and the position sensor. The electronic processor is configured to detect, using the position sensor, a rotational position of the carousel, and rotate, using the one or more actuators, the carousel based on the rotational position of the carousel.

Abstract: A land vehicle includes a frame structure, a plurality of wheels supported by the frame structure, and a body supported by the frame structure. The frame structure includes an operator cage that at least partially defines an operator cabin and a rear compartment positioned rearward of the operator cage in a longitudinal direction. The body includes a first sidewall arranged on one side of the vehicle and a second sidewall arranged on another side of the vehicle opposite the first sidewall.

Abstract: A device that allows for the sequential operations of hole drilling, resin and catalyst insertion and rod insertion in a single machine is provided. The drilling part uses a regular mining drilling machine that is fitted onto the device. Once the hole is drilled, a pipe is inserted into the hole. There are two possible versions of the pipe, a single pipe configured to work with an air cannon shooting resin tubes and a co-joined double pipe to inject resin and a catalyst in separate co-joined pipes so as to emerge unmixed at the end of the pipes. The next step consists in screwing in the rod into the hole, the twisting motion mixes resin and catalyst and in a matter of seconds, the rod is fully inserted and the chemical reaction has started. Because of the speed and accuracy of insertion and the thoroughness of mixing, more catalyst than usual can be used for a faster hardening of the resin, which secures the rod much better and faster.

Abstract: A hybrid geothermal power system is discussed. The system includes a geothermal system including power plant (101) and pumping station (102) and a nuclear plant (103). Pumping station (102) is used to inject fluid from reservoir (104) through an injection well (105) into the bedrock (106) (also referred to as the hot dry rock HDR zone) and extracted via a secondary bore (extraction well) usually coupled to the power plant (101). In the present example however the injection well is linked to the extraction well (107). As fluid is injected into the bedrock a drop in temperature occurs due to heat transfer to the fluid. Nuclear plant (103) is utilized to combat this drop, the plant (103) has the fissionable components (1091, 1092, 1093) of the reactor positioned within bores (1081, 1082, 1083) within the HDR zone.

Abstract: A rock drilling and bolting system comprises a drill feed slidable on a drill feed rail for drilling a hole, a bolter feed slidable on a bolter feed rail, the bolter feed having a main bolt driver for driving a rock bolt, a side-mounted bolt driver mounted to the bolter feed rail, the side-mounted bolt driver being disposed rearwardly of the main bolt driver to receive the rock bolt when there is insufficient space to load the rock bolt in the main bolt driver and to drive the rock bolt partially into the hole, and an indexing mechanism for rotating the main bolt driver into alignment with the rock bolt that is partially driven into the hole, wherein the main bolt driver drives the rock bolt fully into the hole.

Abstract: Methods are provided for the creation of large diameter piles in all types of soils (cohesive, cohesionless or rocky), particularly for the construction of bulkheads made of juxtaposed or secant piles, while maintaining the deviation from the vertical well below the limit ?2% required by European standard EN 1536. The invention reduces verticality errors, advantageously exploiting the accuracy provided by the directional drilling technology. Tools for implementing such methods are also provided.

Abstract: A resin injection apparatus 19 for use in connection with a drilling apparatus 10 for installing ground anchors. The resin injection apparatus 19 comprises a resin injector adaptor 20, adapted to be connected in fluid communication with a hollow drill shaft 21 of a drill rig 10. The resin injector adaptor 20 can be used to inject one or more resin fluids into the drill shaft 21 wherein, in use, when a hole has been drilled in a rock stratum, resin can be injected into the hole via the drill shaft prior to inserting a ground anchor.

Abstract: The present invention provides an apparatus and method for repairing a manhole. The wall of the manhole is lined with a liner to form a new wall. The liner includes a resin that cures to form the new wall that is similar to the repaired wall. Embedded in the liner is a wireless data transfer mechanism that includes a transmitter, such as a radio-frequency identification (RFID). The RFID transmits identification information about the liner or the repaired wall. The transmitter may be capable of data entry in the field or may be otherwise field-programmable and further capable of transmitting at least one physical characteristic. Examples of physical characteristics may include temperature, pressure, chemical reactions, flow within the manhole, and the like. Additional transmitters may be used along the length of the manhole to determine characteristics at multiple locations, with each additional transmitter including the same or different sensors.

Abstract: A manhole liner and a method of using the same are provided. The manhole liner is sized substantially equally to the largest diameter of the manhole, so that the liner does not have to stretch to be pressed against the manhole wall. Additionally, the liner is impregnated with a resinous material capable of curing and hardening. A bladder, preferably stretchable circumferentially and having a diameter less than the smallest diameter of the manhole, is inserted into the liner. The bladder is expanded to press the liner against the wall of the manhole to dispense resinous material from the liner, while the liner is able to fold over itself in areas having a diameter less than the original diameter of the liner. Because the bladder stretches to produce a smooth outside surface, the resinous material will migrate to areas in the folds and will cure with a smooth interior surface.

Abstract: An emissions recycling system is used on a vehicle towing an agricultural implement to enrich the fertility of the soil. The system includes an exhaust collector for collecting exhaust emissions from the internal combustion engine of the towing vehicle and an exhaust distribution system for injecting at least a portion of the exhaust emissions collected by the exhaust collector into the ground worked by the ground working tools of the agricultural implement. Fertility of the soil is enriched by bioactivity within the soil's micro flora which consumes the greenhouse gas and emissions.

Abstract: An emissions recycling system is used on a vehicle towing an agricultural implement to enrich the fertility of the soil. The system includes an exhaust collector for collecting exhaust emissions from the internal combustion engine of the towing vehicle and an exhaust distribution system for injecting at least a portion of the exhaust emissions collected by the exhaust collector into the ground worked by the ground working tools of the agricultural implement. Fertility of the soil is enriched by bioactivity within the soil's micro flora which consumes the greenhouse gas and emissions.

Abstract: Embodiments provide an apparatus and methods for providing a nonlabor-intensive process for preventing backfill entering, or environmental factors eroding, a cavity formed in the ground. Preventing cavity degradation involves constructing a chemically-inflatable bag that separates two or more chemical reactants by creases and cylindrical coils formed in the chemically-inflatable bag. The creases typically act as watertight releasable seals that separate the chemical reactants while the cylindrical coils resist unintentional compromise of the releasable seals. However, the cylindrical coils are designed to give way upon the user applying an unfurling action on the chemically-inflatable bag; thus, furnishing a passageway for the chemical reactants to intermix and initiate a chemical reaction. The chemical reaction produces carbon dioxide as a by-product, which expands the chemically-inflatable bag from a collapsed condition to an inflated condition.

Abstract: An ecological board includes a quadrilateral board body, on the side edges thereof is disposed at least one reglet or at least one insertion groove to be engaged with a corresponding insertion groove or a reglet of another identical board body. Further, a plurality of separated strong and pliable pad bodies are embedded in at least a first side surface of the board body and protrude outwards therefrom. The ecological board according to the present invention is durable, stable, easy to construct, maintain, and repair, and environmentally friendly to the natural landscape. Most importantly, it can be applied to various environments, such as coastlines, artificial reefs, and slopes of reservoirs, rivers, or mountains.

Abstract: A Mechanically Produced Thermocline Based Ocean Temperature Regulatory System to sequester carbon dioxide, create a cold water barrier to hurricanes and tropical storms, and ensure the function of the thermohaline circulation.

Abstract: Seabed scour about a seabed-mounted foundation or renewable energy device or anchor therefore, especially a wind-turbine monopile may be prevented or reduced by installing on or in the seabed area about the foundation or device an arrangement of interconnected sedimentation elements, which by virtue of the elemental structure or interconnective arrangement themselves do not cause or worsen seabed scour by substantially displacing seabed material on which the elements are placed. Elements having a specific gravity, either in situ or inherent, of substantially similar to the seabed material or mobilized seabed material in which they are placed are capable of achieving this. An ideal arrangement of elements (or mat) is one formed of used or discarded vehicle tyres.

Abstract: An emissions recycling system is used on a vehicle towing an agricultural implement to enrich the fertility of the soil. The system includes an exhaust collector for collecting exhaust emissions from the internal combustion engine of the towing vehicle and an exhaust distribution system for injecting at least a portion of the exhaust emissions collected by the exhaust collector into the ground worked by the ground working tools of the agricultural implement. Fertility of the soil is enriched by bioactivity within the soil's micro flora which consumes the greenhouse gas and emissions.

Abstract: To line an inner circumferential surface of side walls of a manhole, a rehabilitating sheet made of a sheet material resistant to water and corrosion is provided in the form of a bag having a shape corresponding to the inner circumferential surface to be lined. The rehabilitating sheet is inserted into the manhole to be lined. Block and plate frames are coupled inside the bag of the rehabilitating sheet to support it so as to have the shape corresponding to the inner circumferential surface to be lined. A gap between the rehabilitating sheet and the inner circumferential surface of the side walls of the manhole is filled with a filler, which is then hardened to line the side walls of the manhole. Pairs of plate frames having different diameters are coupled to each other to provide ring plates having different diameters.

Abstract: A technique enables improved performance of oilfield service operations. A protective shield is formed with a portable stand and at least one lightweight impact panel. The one or more lightweight impact panels enable easy movement of the safety shield from one location to another at a given well site or between different well sites, thus affording protection with a minimum of labor and set up time. The safety shield can be used to provide protection during individual operations and/or to segregate and protect independent operations from each other during multiple, simultaneous operations.

Abstract: A method of applying polyacrylamide (PAM) for stabilizing soil particles of a land area from movement about the land area. The slope of the surface of the soil is measured, and a tentative application rate is determined based upon the slope of the land area. The stability of the soil of the land area is determined by placing a sample of the soil in a tray and pouring a liquid over the sample and evaluating the erosion potential of the soil by measuring any movement of the soil in the liquid. The liquid may be water or a mixture of water and PAM. The application rate may be increased above the tentative application rate if the soil sample showed a relatively higher vulnerability to erosion. An application rate is calculated for applying a mixture of PAM and water to the land area. The mixture is misted onto the surface of the land area in one or more mixture applications. An application of the mixture is continued until the top surface of the soil of the land area becomes saturated.

Abstract: A resin insertion device includes a barrel, a piston within the barrel, and a triggering mechanism. The triggering mechanism includes an air outlet, an air inlet, a venturi tube and at least one trigger piston. A resin insertion device includes a barrel having a collar disposed at a first end and a piston disposed slidably within the barrel. A triggering mechanism is disposed at a second end. A first position of the trigger prevents airflow through an air inlet, a second position allows air through the inlet and an outlet, and a third position prevents airflow through the outlet. A method of inserting resin into a bore hole includes providing an insertion device including a barrel, and a triggering mechanism. The method includes depressing a trigger from a first to a second position, placing at least one resin cartridge within the barrel, and further depressing the trigger.

Abstract: A device for rock bolting with an adapter device (10) for connection of a drilling machine (3) to a self drilling rock bolt (7), in which the adapter device has an adapter element (14) which is sealingly surrounded by a swivel sleeve (13) for connection to one or more external source for flushing medium (8) and bolt grouting medium (9), and in which the adapter element has a thread for connecting to a corresponding thread on the rock bolt (7), and an integral connection portion for connection to the drilling machine (3).

Abstract: A ground cover in the form of a flexible substrate defining a plurality of compactly arranged extractable sections. The installation method involves passing the substrate material from a feed roll to an extraction site on a mobile installation apparatus. A plurality of drive pins are aligned with the substrate and, as the drive pins advance, the sections are extracted and driven into the soil. Various drive pins arrangements are shown and the drive pins may reciprocate along with a rotational or impacting stroke to penetrate the soil while implanting the substrate sections.

Abstract: A module is for use in drilling a borehole in a face of a mine passage using a drilling element and installing a bolt in the borehole once formed. The module may include a bolt holder for holding a plurality of bolts and a drilling element holder for holding a plurality of different drilling elements. A manipulator moves along an arcuate path between the bolt and drilling element holders to deliver the respective components to a drill head positioned along the arcuate path. The drill head may also slide relative to the mast in two different directions, and includes a drill guide for determining the location of the face to be worked. Related aspects of control of the module and methods are disclosed.

Abstract: This invention is concerned with a method and apparatus to measure soil water content. A sensor electrode assembly comprised of a sensor electrode fixed to a spherical shape is implanted in undisturbed soil at the bottom of a low narrow hole in the soil under evaluation. A second electrode is implanted in adjacent soil. Water is adsorbed on the surface of the sensor electrode in proportion to the water in the soil. Electrical charge layers are present at the sensor electrode/water interface due to dissolved oxygen in the adsorbed water. These charge layers result in an interfacial capacitance whose magnitude varies with the amount of water in the soil. Under the assumption that the capacitance of the second electrode/adjacent soil interface is constant, the change in capacitance across the two wires connected to the two electrodes give a measure of the change in soil water content. Energy flow during this measurement is unidirectional, that is, from the interfacial capacitance to the measuring device.

Abstract: A method of modifying the Earth-rotation vector relative to the body of the planet or in inertial space by redistribution of the Earth's mass.

Abstract: Sub-aquatic sediment is covered with capping material by a capping system comprising a template barge and a spreader barge. While the spreader barge is distributing capping material, the template barge guides the spreader barge as it systematically moves over a pre-defined sediment capping region. The spreader barge comprises a spreader pool in which a broadcast spreader accurately and evenly distributes capping material within the pool, which then sinks to the sediment. The capping material is distributed with minimal disturbance to the sediment.

Abstract: A panel pushing assembly (10) for a slide rail system having a first and second wall (12, 14) includes an elongated member (16) having a bottom end (18) and a top end (20), and a guide (40) disposed about the elongated member (16). The guide (40) guides slidable movement along the elongated member (16) and includes a collar (42) engaging the walls (12, 14) of the elongated member (16) and a catch (44) extending laterally from the collar (42) to engage the second wall (14), which is the stationary wall. The collar (42) includes a plurality of side-plates (46) and the catch (44) includes a hook portion (70) extending downwardly along the outside of the second wall (14) for preventing lateral movement of said elongated member (16) relative to the second wall (14).

Abstract: A trailing hose system is disclosed for the application of materials (liquid or granular pesticides, nutrient inactivation, water quality improvement compounds) in a water body. The trailing hose or hoses release the material (liquid or granular pesticides, nutrient inactivation, water quality improvement compounds) at the desired depth within the water column. The current technology for the subsurface application of these materials is surface injection, granular spreaders, and the use of weighted hoses deployed from a vessel (boat). Surface injection of these materials below the thermocline, or to the bottom of a water body in sufficient concentrations to control the target pest, to deactivate nutrients, and or enhance water quality is required in the industry. The current technology that utilizes the use of weighted hose is cumbersome, and is a slow process that allows for the application of these materials at approximately 1-2 miles per hour.

Abstract: A module is for use in drilling a borehole in face of a mine passage using a drilling element and installing a bolt in the borehole once formed. The module may include a bolt holder for holding a plurality of bolts and a drilling element holder for holding a plurality of different drilling elements. A manipulator moves along an arcuate path between the bolt and drilling element holders to deliver the respective components to a drill head positioned along the arcuate path. The drill head may also slide relative to the mast in two different directions, and includes a drill guide for determining the location of the face to be worked. Related aspects of control of the module and methods are disclosed.

Abstract: A method for constructing or rehabilitating a marsh or wetland comprises the step of inserting propagatable material into liquid or slurry emerging from a high-pressure spray nozzle to form a mixture. The liquid/ or slurry/propagatable material mixture is then sprayed over a marsh or wetland area desired to be constructed or rehabilitated.

Abstract: A clip-on connector adapted to be connected to a geogrid, comprising a base portion wherefrom at least one finger portion extends toward an opposite edge of the base portion, such finger portion defining, with the edge of the base portion, a clip, said clip having two arms respectively defined by said finger portion and by said base portion, the spacing between said two arms being smaller than the thickness of a portion of a geogrid whereon the connector has to be coupled, but such that said geogrid portion can be inserted between said two arms.

Abstract: A marine water conversion apparatus capable of pumping ocean surface water several hundred feel below the surface to cause sufficient cooler water to rise to the surface to prevent formation of or to moderate hurricanes. The apparatus is remotely controlled and includes a propulsion system for moving it to a new location or in predetermined patterns through use of a global positioning system and computerized controls. Power for driving the pumps may be provided by a wind turbine driven electric generator at the upper end of an upper tube section pivotally connected to a float tank on a vertical axis.

Abstract: A method for pipeline rehabilitation grout coverage inspection according to embodiments of the present invention includes installing a tubular liner within a pipeline by filling a space between the tubular liner and the pipeline with grout, creating a heat transfer across the tubular liner, and observing an inside of the tubular liner with an infrared camera to detect an infrared signal differential between areas of the tubular liner in contact with the grout and areas of the tubular liner not in contact with the grout. Observing and inspecting the inside of the tubular liner may be accomplished simultaneously with rounding of the liner and smoothing of the grout by harnessing an infrared camera to a swab and advancing the swab with chilled compressed air to cool the liner, according to embodiments of the present invention.

Abstract: A device (5) for installing a pressure fluid expandable rock bolt (4) of the kind having a tubular expansion portion and a fitting portion, said device at a distal portion having chuck means for gripping the fitting portion and for establishing a sealed connection between a fluid source and the inlet, said device extending essentially in an axial direction. The device includes at a proximal portion a holder portion (11) that is adapted to be fitted to a drill string engagement element (27) of a rock drilling machine. The invention also concerns a method and a rig.

Abstract: A ground anchor load testing system includes a ground anchoring unit having a bare upper drill shaft portion along and around which a reaction anchor with its hollow shaft is temporary installed. During test loading of the installed ground anchoring unit, a test loading head is coupled with both concentric flanging ends of the ground anchoring unit and the temporarily installed reaction anchor. The test loading head exerts via a first coupling the push test load on the first flanging end of the ground anchoring unit while withholding itself via a second coupling on the second flanging end of the reaction anchor. A measurement device may be positioned on the ground adjacent the test load head. Eventual axial displacement of the ground anchoring unit under test load may be externally recognized by the measurement device via an axial displacement indicator in axial connection with the first coupling.

Abstract: A module and related methods of use in drilling a borehole in a face of a mine passage using a drilling element and installing a bolt in the borehole once formed. The module may include a bolt holder for holding a plurality of bolts and a drilling element holder for holding a plurality of different drilling elements. A manipulator moves along an arcuate path between the bolt and drilling element holders to deliver the respective components to a drill head positioned along the arcuate path. The drill head may also slide relative to the mast in two different directions, and includes a drill guide for determining the location of the face to be worked.

Abstract: A clamp is disclosed for use in deep sea oil exploration operations. The clamp includes a pre-formed metallic belt (12) to which a first rigid metallic curve (13) is welded. The rigid metallic curve reinforces and protects the anchorage housing of an electro-hydraulic hose which is secured by the clamp. The belt (12) further includes a second rigid metallic curve (14) to reinforce and protect an electric cable which is secured by the clamp. The belt includes rigid symmetrical forks (15) and (16) that are welded in the rotation area of screws that serve to tighten the clamp. The clamp includes a body made of vulcanized rubber having three tips (26), (27) and (28), which are formed at equidistant angles of 120°. The clamp body includes a larger bore hole in the center (17), a medium bore hole in half oblong form (9) in the tip (27), a small bore hole in half oblong form (8) in the tip (26), and a bore slot (18) in the tip (28) suitable for the opening and closing of the clamp (1).

Abstract: A module and related methods of use in drilling a borehole in a face of a mine passage using a drilling element and installing a bolt in the borehole once formed. The module may include a bolt holder for holding a plurality of bolts and a drilling element holder for holding a plurality of different drilling elements. A manipulator moves along an arcuate path between the bolt and drilling element holders to deliver the respective components to a drill head positioned along the arcuate path. The drill head may also slide relative to the mast in two different directions, and includes a drill guide for determining the location of the face to be worked.

Abstract: A module and related methods of use in drilling a borehole in a face of a mine passage using a drilling element and installing a bolt in the borehole once formed. The module may include a bolt holder for holding a plurality of bolts and a drilling element holder for holding a plurality of different drilling elements. A manipulator moves along an arcuate path between the bolt and drilling element holders to deliver the respective components to a drill head positioned along the arcuate path. The drill head may also slide relative to the mast in two different directions, and includes a drill guide for determining the location of the face to be worked.

Abstract: A module and related methods of use in drilling a borehole in a face of a mine passage using a drilling element and installing a bolt in the borehole once formed. The module may include a bolt holder for holding a plurality of bolts and a drilling element holder for holding a plurality of different drilling elements. A manipulator moves along an arcuate path between the bolt and drilling element holders to deliver the respective components to a drill head positioned along the arcuate path. The drill head may also slide relative to the mast in two different directions, and includes a drill guide for determining the location of the face to be worked.

Abstract: A module and related methods of use in drilling a borehole in a face of a mine passage using a drilling element and installing a bolt in the borehole once formed. The module may include a bolt holder for holding a plurality of bolts and a drilling element holder for holding a plurality of different drilling elements. A manipulator moves along an arcuate path between the bolt and drilling element holders to deliver the respective components to a drill head positioned along the arcuate path. The drill head may also slide relative to the mast in two different directions, and includes a drill guide for determining the location of the face to be worked.

Abstract: A system for reducing an evaporation and energy transfer rate between a body of fluid and an environment is provided. The system comprises a plurality of buoyant bodies, where each of the plurality of buoyant bodies has a shape that is defined by a plurality of faces and edges, and where each edge is formed by two intersecting faces. The bodies are disposed or partially submerged in the fluid so that at least a portion of a first face of a first body contacts at least a portion of a first face of a second body to form a substantially gapless barrier between the surface of the fluid and the environment.

Abstract: The present invention is a system and method for removal of buried objects. According to one embodiment of the invention, a crane with a vibrator casing driver is used to lift and suspend a large diameter steel casing over the buried object. Then the casing is driven into the ground by the vibratory driver until the casing surrounds the buried object. Then the open bottom of the casing is sealed shut by injecting grout into the ground within the casing near its bottom. When the seal has cured and hardened, the top of the casing is lifted to retrieve the casing, with the buried object inside, from the ground.

Abstract: The present invention is a system and method for removal of buried objects. According to one embodiment of the invention, a crane with a vibrator casing driver is used to lift and suspend a large diameter steel casing over the buried object. Then the casing is driven into the ground by the vibratory driver until the casing surrounds the buried object. Then the open bottom of the casing is sealed shut by injecting grout into the ground within the casing near its bottom. When the seal has cured and hardened, the top of the casing is lifted to retrieve the casing, with the buried object inside, from the ground.