Abstract: A cutting tool mounting assembly includes a base that defines a receptacle. A bushing is configured to be received in the receptacle and includes an aperture. A rotatable cutting tool is received in the aperture of the bushing. The rotatable cutting tool includes a cutting tip. The cutting tool mounting assembly includes a split, modular and wireless wear detection system including a target proximate the cutting tip for emitting a signal representative of the wear of the cutting tip, a sensor element for detecting the signal emitted by the target at a spaced apart location with respect to the target, a data recording and data transmitting device for recording data from the sensor element and for wirelessly communicating the data to a processor and/or a display device.

Abstract: An apparatus for guiding fish through a body of water having a water flow includes one or more hydrofoil element oriented in the body of water to produce an asymmetric flow field that has a fast, low turbulent flow on one side of the element and a slow, high turbulent flow on the other side of the element. Positively rheotactic fish have a preference for one side versus the other and so are guided in a desired direction. Systems and method that utilize the apparatus can be used to guide fish away from infrastructure such as dams, locks, levees, flood weirs, and other diversion points.

Abstract: A cover for an underground enclosure may include an upper surface comprising a pattern of bosses, a first slot and a second slot disposed on the upper surface, a lower surface opposite the upper surface. A first reinforcement member may be coupled to the lower surface. The first slot may extend into the first reinforcement member, and a second reinforcement member may be coupled to the lower surface and aligned with the first reinforcement member. The second slot may extend into the second reinforcement member. The cover may be configured to be lifted by the first slot and the second slot.

Abstract: This disclosure addresses the problem of preventing sediment laden water (“sediment slurry”) resulting from hydraulic collection of nodules from the seabed from entering the riser and lift system that carries the nodules to the surface as a slurry. An example includes collecting nodules from the seabed by hydraulic suction, separating the nodules utilizing an inverse hydrocyclone.

Abstract: The present invention relates to a self-propelled earth working machine (10) for removing material and/or changing a density of ground material and/or changing a ground surface (AO) and/or applying material onto a ground area (U), the earth working machine (10) comprising: a machine frame (12), a traveling gear (22) supporting the machine frame (12), a working apparatus (32) for earth working, a power source (39) for supplying power to at least one functional module, comprising the working apparatus (32) and a travel drive, the earth working machine (10) comprising an operator's platform (24) having a canopy (44) having a variable canopy area (54). The invention provides for the canopy area (54) to be variable in the longitudinal machine direction (L).

Abstract: A rackbar for a mining machine has a body including a first end and second end, an inner rack wall, an outer rack wall spaced from the inner rack wall, a plurality of gear teeth extending between the inner rack wall and the outer rack wall, an extension disposed adjacent the first end, a pin aperture positioned on the extension, and a rib extending along a surface of the extension. The inner and outer rack walls extend between the first end and the second end parallel to a rack axis. The extension extends in a direction perpendicular to the rack axis. The pin aperture is configured to receive a pin.

Abstract: A vehicle (6) apparatus for removing material from the seabed is disclosed. The vehicle comprises first thrusters (10) for moving the vehicle vertically and second thrusters (12) for moving the vehicle horizontally. A collector unit (16) removes material from the seabed, and a latching mechanism (42) is adapted to be connected to a riser to enable removed material to be transported to a vessel on the surface.

Abstract: Devices and methods for generating surfable waves in a pool. Waves are generated by removing support, at a progression of areas at the bottom of the pool, for the water in the pool and causing rapid downflow at a progression of areas at the bottom of the pool.

Abstract: A method, an arrangement and a machine for powering holes in mountains through so-called full face reaming. According to the method according to the invention a plurality of cutterheads (20:1-20:n) independently of each other are displaceably moveably accommodated in a drill head (11) by operation of a linear drive arrangement (22:1-22:n) for each cutterhead (20:1-20:n), and which cutterheads from a condition retracted in the drill head (11) are conveyable to a projecting mountain-grinding condition from the front side (11?) simultaneously with the drill head (11) rotating, whereby the hole front is gradually drilled along concentric rings “drill rings” that go from an inner smallest circle to an outer largest circle by new cutterheads (20:1-20:n) with gradually increasing radius from the centre of the drill head in successive steps are conveyed in mountain-grinding condition.

Abstract: A system and method for creating and controlling a wave profile in a wave pool by controlling the water height profile in each of the chambers of the wave pool. The wave pool includes a plurality of wave generating chambers, each comprising one or more intake valves and exhaust valves. The valves are capable of being controlled to selectively open and close to a valve angle of fully open, fully closed, or any angle between. Using a graphical user interface, a user creates a water height profile for each chamber that dictates the resulting wave generated and released into the pool. Multiple custom chamber profiles may be grouped to create a custom wave section. Multiple custom wave sections may be grouped to create a custom wave. The system and method provides for increased customization of the wave, as well as reduced turbulence and increased efficiency of the system.

Abstract: An electric-pulse fracturing device for hard roof of coal mine based on a self-sealing water bag and an using method thereof are provided. The device includes a power switch, a charging power supply, a current limiting protection resistor, an energy storage capacitor and a high-voltage electric pulse switch connected in sequence. The energy storage capacitor is connected with an end of a gas gap switch, an other end of the gas gap switch is connected with an assembled self-sealing water bag high-voltage electric pulse electrode structure through a high-voltage cable, and the electrode structure is fixed through an assembly rod. The self-sealing water bag high-voltage electric pulse electrode structure includes a self-sealing water bag and an electrode structure capable of focusing shock wave energy, and the number of the self-sealing water bag high-voltage electric pulse electrode structure depends on fracturing effect.

Abstract: The present disclosure discloses an intelligent tunnel segment monitoring system, including two displacement transfer plates and a dislocation monitoring sensor; the two displacement transfer plates are respectively arranged on two adjacent tunnel segments; the dislocation monitoring sensor is connected to the two displacement transfer plates and is used for detecting relative displacement information between the two displacement transfer plates; when the two tunnel segments do not have a relative displacement, the two displacement transfer plates are located on the same plane; one of the displacement transfer plates is provided with a data acquisition and transmission device; the dislocation monitoring sensor is connected to an external data analysis terminal through the data acquisition and transmission device.

Abstract: A trench box assembly including a trench box and an end cap assembly extending outwardly beyond an end of the trench box. The trench box has two metal plates and spreader bars extending between the plates. The end cap assembly includes a housing and an attachment mechanism. The housing has a first side wall, a second side wall, a top wall, and a back wall which bound and define an interior chamber of a size suitable to receive at least part of a worker's body therein. The attachment mechanism includes attachment hooks which adjustably engage the housing to the spreader bars. When the trench box assembly is installed within a trench the end cap assembly protects a worker performing a task proximate one end of the trench box from being injured by debris falling into a region of the trench adjacent the end of the trench box.

Abstract: A method of sealing and pressurizing underground facilities in planetary bodies with atmospheric pressures or temperatures differing from that of earth may include disposing at least one prefabricated, airtight plug within the tunnel system prior to forming additional tunnels or shafts within the tunnel system. Multiple plugs may be additionally disposed within the tunnel system to create various encapsulated tunnel portions optionally having differing pressures and temperatures. The tunnel system may be airtight and sealed from external, hostile atmospheric conditions, designed to facilitate safe living and work conditions in the tunnel systems and to facilitate safe movement of people and equipment between tunnels, shafts and the surface of the planetary body. Tunnel systems are defined as any variety of man-made mines and tunnels or naturally occurring tunnels such as lava tubes or caverns and the like.

Abstract: A milling head, having a rotation axis and which serves for machining a pile head of a pile that includes a pile core, a pile jacket and a metal armouring interposed therebetween, includes a coupling device, connected to a drive shaft of a driving device, a central milling cutter, which includes a plurality of central chisels mounted on a lower side of an inner ring plate, and a ring milling cutter, which includes a plurality of ring chisels mounted on a lower side of an outer ring plate, which central milling cutter and ring milling cutter are connected to each other coaxially aligned with the rotation axis, and which outer ring plate surrounds the inner ring plate separated thereof by a middle circular ring area. The inner ring plate includes at least one transfer opening leading from the lower side to the upper side of the inner ring plate.

Abstract: Embodiments of the present disclosure provide a frost-heave-resistant pile foundation support device including a pile foundation cylinder, a pile foundation cylinder top seat, a pile foundation cylinder base, and a frost heave penetration mechanism, wherein a top of the pile foundation cylinder is fixedly installed with the pile foundation cylinder top seat, and the pile foundation cylinder top seat is configured to connect to a target to be support; the pile foundation cylinder base is disposed at a bottom of the pile foundation cylinder, and a plurality of threaded drill rod assemblies are provided on the pile foundation cylinder; the frost heave penetration mechanism is fixedly installed on a cylindrical wall of the pile foundation cylinder.

Abstract: A tunnel excavation device includes a front body section and a rear body section. The front body section includes a cutter head, a cutter head support, peripheral plates, a roof shoe, and side shoes. The cutter head includes a plurality of roller cutters. The cutter head support supports the cutter head. The peripheral plates, the roof shoe, and the side shoes are provided to the outer circumference and can be collapsed inward. The rear body section is disposed to the rear of the front body section. The rear body section includes a gripper section. The gripper section obtains a reaction force for performing excavation.

Abstract: Surface modification control stations and methods in a globally distributed array for dynamically adjusting the atmospheric, terrestrial and oceanic properties. The control stations modify the humidity, currents, wind flows and heat removal rate of the surface and facilitate cooling and control of large area of global surface temperatures. This global system is made of arrays of multiple sub-systems that monitor climate and act locally on weather with dynamically generated local forcing & perturbations for guiding in a controlled manner aim at long-term modifications. The machineries are part of a large-scale system consisting of an array of many such machines put across the globe at locations called the control stations. These are then used in a coordinated manner to modify large area weather and the global climate as desired.

Abstract: The present invention discloses a right-angle turning method for small-diameter TBM exploration adit excavation and belongs to the field of geological exploration of water conservancy and hydropower projects.

Abstract: The invention relates to an earth working machine and to a method for wear-optimized operation of such an earth working machine. Provision is made in this context that machine parameters with which the earth working machine is operated are adapted, in consideration of material properties of the substrate to be worked, in such a way that favorable wear behavior exists for the earth working tools being used.