Abstract: A boat lift assembly includes a first base member having a central beam portion and first and second sloped beam portions, and a second base member having a central beam portion and first and second sloped beam portions. The assembly includes a first plurality of roller tubes coupled to the first sloped beam portions of the first and second base members, and a first plurality of rollers disposed on the first plurality of roller tubes. The assembly includes a second plurality of roller tubes coupled to the central beam portions of the first and second base members, and a second plurality of rollers disposed on the second plurality of roller tubes. The assembly includes a third plurality of roller tubes coupled to the second sloped beam portions of the first and second base members, and a third plurality of rollers disposed on the third plurality of roller tubes.

Abstract: A fiber sheet system suitable for controlling erosion and stabilizing soil is described that comprises a fiber sheet comprising a natural fiber felt. The fiber sheet has a top side width smaller than the height and the length of the fiber sheet. A netting contacts the front and rear sides of the fiber sheet.

Abstract: The present invention relates generally to an injectable tie back cover for waterproofing, apparatus, and a method of using same. The invention encompasses a substantially domed shaped structure having at least one surface along the domed shaped structure, and having an edge flanged surface which is placed over a tieback head, and where the injectable tieback cover is used as a waterproofing apparatus. A supplemental injectable tubing can also be provided around the outside of the substantially domed shaped structure, which injectable tubing can be injected with a secondary waterproofing material to provide additional waterproofing to the area around the injectable tie back cover facing the concrete or shotcrete. The domed shaped structure can also have at least one dome channel to accommodate at least one injectable tieback cover tubing. The invention also provides a method of using the inventive injectable tie back cover for waterproofing structures.

Abstract: An alignment and installation jig for a screw anchor driving machine. The alignment and installation jig includes a laser target that can be moved from an alignment position to a driving position. The jig may also include one or more automated crimping assemblies to form permanent connections between overlapping foundation components while the machine is correctly oriented to assembly a truss foundation. One crimping assembly device may effect crimp joints between a foundation component held by the jig and overlapping upper ends of a pair of adjacent foundation legs. Second crimping assemblies may telescope down each leg to effect respective crimp joints between the lower end of the leg and the upper end of a driven foundation component.

Abstract: A corrugated metal gasket for use between two flanges wherein the corrugated metal gasket is produced by a method comprising the steps of providing an annular gasket substrate and machining into that substrate a plurality of substantially uniform and generally concentric corrugations.

Abstract: A method for mitigating flooding in existing coastal plain areas includes: A dyke (or dykes) is (are) set/built on seabed outside partial existing coastline of an existing coastal plain area to form an enclosed area; the enclosed area, together with the dyke(s), the reservoir inlet(s) and outlet(s), constitutes a reservoir for containing rainwater; or, part(s) of the enclosed area is (are) of a reclamation area (or reclamation areas). Before the start of forecast heavy rainfall or continuous rainfall, the water level in the reservoir is lowered in advance and the water level of water area for containing rainwater in the existing coastal plain is also pre-lowered, so effective storage capacity for containing rainwater against flooding caused by rainfall in the locality is substantially increased. The present invention is applicable for the flooding control works, reclamation works, roads and highways and their integrated works in existing coastal plain areas.

Abstract: A soil stabilizer assembly may include a pipe with a first end, a second end, and a sidewall defining a hollow shaft extending between the first and second ends; a stabilizer connectable to the second end of the pipe with a hollow body and a plurality of extensions extending radially outward from the body; and a cap connectable to the first end of the pipe including a receiving portion for receiving the first end of the pipe and a plate extending across the receiving portion. The hollow body of the stabilizer may be configured to receive the second end at least a portion of the sidewall of the pipe therethrough. The receiving portion of the cap may be configured to receive the first end and at least a portion of the hollow shaft of the pipe therein. The hollow shaft, hollow body, and receiving portion may be coaxially arranged.

Abstract: An erosion control apparatus includes a flexible, container and a cord. The container includes a container upper side, a container lower side opposite the container upper side, a container trailing end, a container leading end opposite the container trailing end, and a container mouth toward the container leading end. The container mouth provides an opening to a container interior. The cord is attached between the container mouth and an attachment point toward the container trailing end. The cord draws the container mouth toward the container trailing end due to a length of the cord between the container mouth and the attachment point being shorter than a length of the container between the container mouth and the attachment point. The cord further draws the container mouth toward a closed position as sediment enters the container mouth, fills the container interior, and urges the container leading end away from the attachment point.

Abstract: A coupling between lead and extension pile segments of a driven piling. The extension segment has a formed end, an opposite driven end and a body extending therebetween. The formed end has an inner diameter equal to an outer diameter of an exposed end of the lead segment and greater than an outer diameter of the extension segment's body. The formed end has an initial length prior to coupling the extension and lead segments; the formed end undergoes secondary end forming when a driving force is applied, such that the formed end has a final length exceeding the initial length after the extension and lead segments are coupled. In some embodiments, the extension segment has an external ring portion positioned upstream of the formed end, and the exposed end of the lead segment is cold extruded into and through the external ring portion of the extension segment.

Abstract: A bracing assembly for a geosynthetic wrapped system is provided. The bracing assembly includes a standing brace bar, a bottom brace bar, and a cross brace bar having different configurations to facilitate both easy and mistake free assembly of the bracing assembly. Furthermore, the standing brace bar and the bottom brace bar include guide tips that are sized and shaped to direct insertion of the standing brace bar and the bottom brace bar respectively into a weave of a geotextile fabric material such that a first connector of the bottom brace bar and a first connection slot of the standing brace bar are aligned together and with a fold line of the geotextile fabric material.

Abstract: The subject invention pertains to a completely new pile splicing system called Grouted Sleeve Coupler Splice (GSCS) for Precast Concrete Piles (PCPs) as an innovative alternative splicing method for connecting driven PCP segments. The provided splicing method is applicable for preplanned situations and provides a durable, labor-friendly, rapid, and economical foundation construction method. In this system, to improve the structural performance, the entire sleeve coupler and a portion of the dowels are partially debonded in short lengths from surrounding concrete. This connection system is novel in conjunction with PCPs and for connecting separate precast pile segments. The provided system offers a completely unique and new method of connecting and splicing PCP segments and other prismatic prefabricated piles.

Abstract: A pile is comprised of a pipe, i.e., a hollow tube or hollow cylinder, with a coextensive internal reinforcement comprised of a plurality of intersecting walls. The pile is comprised of a blend of a thermoplastic and 20 to 50% (pbw) pelletized chopped strand glass fibers. The outer surface includes a co-extruded cap stock that is relatively smooth and exhibits a relatively low coefficient of friction. The internal structures exhibit roughness, bumpiness and a relatively high coefficient of friction for an extruded plastic. A groove may be formed in the pile adjacent to an end for resistance to uplift.

Abstract: A lead for installing a pile into a seabed floor comprising: an elongated body extending longitudinally along a first axis in a first direction from a top end to a bottom end and configured to receive a pile oriented in the first direction; and a lead indexing foot attached to the bottom end of the elongated body and laterally offset with regard to the first axis.

Abstract: Pile connection methods and devices are disclosed. In some examples, a pile connection device includes a plug including a head, a body extending from a distal end of the head, a first bolt aperture extending through the head and the body and configured to receive a bolt, and pins extending from a distal end of the body. The pile connection device further includes a nut including pin apertures each configured to receive one of the pins, projections extending from a circumference of a proximal end of the nut, and a second bolt aperture that is threaded and configured to align with the first bolt aperture when the pins are received by the pin apertures. The second bolt aperture is configured to receive a threaded distal portion of the bolt to thereby draw the nut toward the plug and retain the pile connection device within apertures in the connected piles.

Abstract: A construction process of soil nailing wall for geological disaster control is provided, which uses a construction equipment of soil nailing wall for geological disaster control, including underframe, lifting assembly and etc.; a lifting assembly is installed on the left side of the upper side of the underframe. When in use, the disclosure can automatically cut off the tree trunks extending out of the slope surface, and then install the grouting rods in the soil slope holes. At the same time, the disclosure can adapt to the tree trunks with different bending degrees to cut them, which solves the problem of tree trunks interfering with the construction, greatly improves the efficiency, prevents the cut tree trunks from falling onto the slope, avoids damaging the slope surface, and can adapt to a variety of situations to cut off the tree trunks.

Abstract: An underground base configured for supporting an above-ground static structure that has a pair of plates each having a distal end, a proximal end, and a body portion between the distal end and the proximal end. The pair of plates are connected to each other to define a box section and a pair of flanges extending outwardly from opposing vertices of the box section. The base further has a plurality of brackets each connected to one of the plates at the proximal end, a base plate connected to the plurality of brackets, and an adjustment plate connected to the base plate via one or more adjustment fasteners. The adjustment plate is movable relative to the base plate via the one or more adjustment fasteners to adjust an orientation of the adjustment plate relative to the base plate.

Abstract: Aspects of the present disclosure involve hydraulic systems and methods for altering a flow of a body of water, such as a river, channel, and/or other flowing or uncontained bodies of water. In one aspect, a hydraulic system provides a velocity barrier for the impedance of aquatic organism migration. More particularly, the velocity barrier may be adapted based on the swimming capabilities of one or more aquatic organisms to impede migration. The aquatic organism may be one or more species of fish, such as species sea lamprey (Petromyzon marinus). The example implementations shown and described herein reference the restriction of the sea lamprey. However, it will be appreciated that other aquatic organisms could be restricted by the presently disclosed technology, for example, with different hydraulic targets depending on swimming capabilities.

Abstract: A riser section having a generally tapered, e.g., frustoconical wall, the riser section having a first connector assembly at one end of the riser section and a second connector assembly at the other end of the riser section.

Abstract: A system and method for detecting passage of a pipeline pig, the system and method including a passive impulse detector (10) having a housing (13); a non-intrusive connection (15) of the housing to an exterior wall (17) of a pipeline (P), at least one vibration sensor (11) housed by the housing, and signal processing (23) including at least one band pass filter (27) configured to receive data collected by the vibration sensor, the vibration sensor and band pass filter configured to monitor frequencies in a predetermined range indicating a series of impulses caused by start-and-stop movement of the pipeline pig. The selected frequencies should be those more easily detectable above the baseline (signature or natural resonance) frequency of the section of pipeline being monitored. In some embodiments, the selected frequencies are lower frequencies. No portion of the passive pipeline pig signal intrudes into an interior of the pipeline.

Abstract: A coupling device includes male and female couplings having first and second circumferential grooves on surfaces of the respective couplings that face each other when the couplings are fitted together. The coupling device further includes an engaging member. When the male coupling is pushed into the female coupling, the engaging member is retracted into the second groove, allowing the male coupling to be inserted into the female coupling, and when the couplings are fitted together, the engaging member is pushed into the first groove by coil springs so as to be fitted into both of the groove, thereby preventing separation of the male and female couplings in the axial direction. Countersunk head screws support respective divided pieces of the engaging member. Slotted head setscrews are screwed in at boundaries between the adjacent divided pieces to press the divided pieces against the bottom of the first groove.