摘要:
A cutting device for cutting rock includes a disc and a plurality of cutting elements secured to the disc. The disc is supported for rotation about an axis of rotation, and the disc includes a peripheral edge extending around the axis of rotation. The plurality of cutting elements are spaced apart along the peripheral edge of the disc and positioned in a cutting plane. Each of the cutting elements includes a base portion and a cutting portion including a cutting edge, and the cutting portion has a width that is larger than a width of the base portion.
摘要:
Systems and methods to provide pressed aggregate-filled cavities for improving ground stiffness and uniformity are disclosed. According to an aspect, a method includes using a mechanism to press into a ground surface in a substantially downward direction to create a concavity. The method also includes substantially or completely filling the concavity with unstabilized or chemically stabilized aggregate, soil, or sand. Further, the method includes using the mechanism to press the aggregate within the concavity to achieve a desired ground stiffness.
摘要:
A plug device for covering a cavity excavated in the ground. The plug device includes a head defined by a plate having a planar upper surface and a planar lower surface, wherein the plate has a size that corresponds to a size of the excavated cavity. The plug device also includes a plurality of anchor members extending axially away from the planar lower surface, and that are configured to secure the plug device to the cavity.
摘要:
A cutting device for engaging a rock face includes a disc body supported for rotation about an axis of rotation, and a plurality of peripheral portions removably secured to the disc body. Each of the peripheral portions including a plurality of cutting bits positioned on a peripheral edge. The peripheral edge of each peripheral portion is aligned with the peripheral edges of adjacent peripheral portions.
摘要:
A device for coupling to a working end of a hydrovac boom hose includes a tubular suction tube for removably coupling to the working end of the hydrovac boom hose such that an opening of the working end remains unobstructed. A plurality of high pressure turbo nozzles configured for emitting high pressure water are located around a circumference of the tubular suction tube such that the turbo nozzles surround the working end of the hydrovac boom hose to dislodge earthly materials under the device. An outer housing to enclose and protect the tubular suction tube, turbo nozzles, and onboard locating device, and to provide an air duct for ambient air to pass down threw. A plurality of air vents in the outer housing that provide flow of ambient air to an area being excavated. The conduit coupled with the outer housing, for allowing ingress of water to the plurality of high pressure turbo nozzles.
摘要:
Described herein is an earth auger and pole machine for automated installation of poles in earth banks of access roads to open-pit mines. The earth auger and pole machine is fitted with a mechanic boom comprised of a first link and a second link. The first link has an end attached to a base fixed to a conveyor vehicle, and the other end coupled to the second link. The second link comprises a magazine for loading the poles, an auger system to drill the ground, and an installer to place the poles into the hole. This document also describes a method for installing poles in sequence by using the earth auger and pole machine.
摘要:
A device for coupling to a working end of a hydrovac boom hose is disclosed. The device includes a tubular suction tube configured for removably coupling to the working end of the hydrovac boom hose such that an opening of the working end remains unobstructed. A plurality of high pressure water jet nozzles is located around a circumference of the tubular suction tube such that the water jet nozzles surround the working end of the hydrovac boom hose to dislodge earthly materials under the device. The high pressure water jet nozzles are configured for emitting high pressure that dislodge earthly material. A cylindrical housing to enclose and protect the tubular suction tube, water jet nozzles, locating device and provide an air duct for the ambient air to pass down threw. A plurality of air vents in the cylindrical housing that provide flow of ambient air to an area being excavated. The conduit coupled with the cylindrical housing, the conduit for allowing ingress of water to the plurality of high pressure water jet nozzles.
摘要:
An apparatus for the mechanical digging of graves has a frame which can be adjusted in width to enable it to pass between headstones in a cemetry. A carrier is vertically adjustable in the frame, and a digging assembly is traversable longitudinally within the frame. A bucket conveyor and motorized digging attachment are carried on a rigid structure which is vertically adjustable with respect to a sub-frame of the carrier.