摘要:
A method of driving a pipe into the ground includes steps of placing a pipe to be driven into the ground onto a series of at least two spaced skids each having an upwardly opening cradle thereon so that the pipe spans and is supported by the skid cradles, one skid proximate a front end of the pipe and the other skid proximate a rear end of the pipe, each skid including a vertical jack mechanism for raising and lowering the pipe supported by the skid, positioning the pipe in a position for ramming into the ground by operating the vertical jack mechanisms as needed to raise the pipe into the ramming position, and ramming the pipe using an impact ramming tool applied to push the pipe into the ground.
摘要:
A boring machine includes a steering head which is located behind a cutter head. The steering head has a plurality of steering openings spaced around its periphery. A steering component is mounted adjacent to each steering opening, and each steering component includes a steering paddle that is pivotally mounted with respect to the steering head so as to pivot about a paddle pivot axis. Each steering component also includes a linear actuator and a force multiplier. The linear actuator operates to direct an actuating force along a line that is parallel to the longitudinal axis of the steering head, and it cooperates with the force multiplier and the steering paddle so that upon operation of the linear actuator, a pivot force which is the product of the actuating force and a multiplier factor greater than one causes the steering paddle to pivot about the pivot axis.
摘要:
A subterranean barrier and method for forming same are disclosed, the barrier including a plurality of casing strings wherein at least one casing string of the plurality of casing strings may be affixed to at least another adjacent casing string of the plurality of casing strings through at least one weld, at least one adhesive joint, or both. A method and system for nondestructively inspecting a subterranean barrier is disclosed. For instance, a radiographic signal may be emitted from within a casing string toward an adjacent casing string and the radiographic signal may be detected from within the adjacent casing string. A method of repairing a barrier including removing at least a portion of a casing string and welding a repair element within the casing string is disclosed. A method of selectively heating at least one casing string forming at least a portion of a subterranean barrier is disclosed.
摘要:
The invention relates to a load bearing construction such as a bridge in which there is provided a deck structure which is supported by and spans at least two support portions. The invention provides for the advancement of the deck structure along said support portions and in advance of said structure excavation can occur to create the space into which the deck structure is to be advanced.
摘要:
A subterranean barrier and method for forming same are disclosed, the barrier including a plurality of casing strings wherein at least one casing string of the plurality of casing strings may be affixed to at least another adjacent casing string of the plurality of casing strings through at least one weld, at least one adhesive joint, or both. A method and system for nondestructively inspecting a subterranean barrier is disclosed. For instance, a radiographic signal may be emitted from within a casing string toward an adjacent casing string and the radiographic signal may be detected from within the adjacent casing string. A method of repairing a barrier including removing at least a portion of a casing string and welding a repair element within the casing string is disclosed. A method of selectively heating at least one casing string forming at least a portion of a subterranean barrier is disclosed.
摘要:
A method and apparatus for installing a pipe casing underground without a trench for distances up to 400 feet with pipe casing up to 168 inches in diameter. The system uses a modified high energy piling hammer to mobilize the energy to drive the casings or tubings that make up the instant tunnel. An example of a piling hammer used in the present invention is the IHC Hydrohammer line of models in between the S-90 and S-280. Specific models planned to be used in this invention, depending on diameter and length requirements and type of soil in the planned alignment, are the Models S-90, S-150, S-280, S-400 and S-500. The present invention's Hydrohammers are needed to be held against the casing pipe to be driven with a force equal to the reactional force of the hammer during recharging of the hammer's system. A special helmet and cutting head increase operational capabilities.
摘要:
A buried pipe laying method of additionally coupling a new pipe with the extreme end of a buried pipe laid underground involves flatly deforming a cylindrical pipe having a pipe length smaller than the inside diameter of the buried pipe, conveying the deformed cylindrical pipe to the extreme end of the buried pipe laid underground through the interior thereof, and then returning the deformed shape of the cylindrical pipe to its original circular shape and coupling it with the extreme end of the buried pipe.
摘要:
A method and apparatus for producing an underground pipeline from an excavated hole uses a drill head with a suitable tool attached thereto. Loosened soil is transported out of the drilled tunnel with a transportation drum containing an internal spiral. The drum is supported by a roll devices fixed to outer pipes. Rotating movement is transmitted to the rotating drill head from the transportation drum which is driven by a motor. Cylinders push the whole system and force is transmitted by the outer pipes to the drill head. Guiding of the drill head is accomplished with fluid actuators. Attachment and removal of the drill tool is accomplished through a free hole in the transportation drum and a central hole in the drill head, and the free hole and central hole also allow observation of the drill tool and tunnel face during drilling.