Hole forming process of hole bottom chambering device of anchoring hole

Abstract

The invention provides a hole forming process of a hole bottom chambering device of an anchoring hole. The hole forming process comprises the following steps: the straight anchoring hole is struck; awater injecting guiding pipe (2) and a water pumping guiding pipe (3) are fixed into a rotary sleeve (1) through a fixing support (7), the bottoms of the water injecting guiding pipe (2) and the waterpumping guiding pipe (3) are made to stretch out of the rotary sleeve (1), and then the rotary sleeve (1) is placed into the straight anchoring hole; the water injecting guiding pipe (2) communicateswith an external high-pressure water pipe, and the water pumping guiding pipe (3) communicates with an external high-pressure water pump; the inner wall of the hole bottom of the anchoring hole is subjected to flow jet cutting through the water injecting guiding pipe (2), and meanwhile, the high-pressure water pump is adopted to pump mud at the hole bottom through the water pumping guiding pipe (3); after high-pressure flow jet hole cutting is completed, the high-pressure water pump is kept to continuously pump the mud at the hole bottom through the water pumping guiding pipe (3), and pumpingis stopped till the cement mud discharging amount of the high-pressure water pump is decreased; and the height of the water injecting guiding pipe (2) is adjusted to adjust the angle of a rotatable support (6), and the whole rotary sleeve (1) is taken out.

Description

technical field [0001] The invention relates to a hole reaming process, more specifically to a hole forming process of an anchor hole bottom reaming device, and belongs to the field of anchoring technology. Background technique [0002] The soil anchor is to drill a hole in the unexcavated soil layer of the deep foundation soil wall. After reaching a certain depth, put steel bars, steel pipes, steel wire bundles, steel strands and other materials into the holes, and pour mud or chemical slurry to make them It combines with the soil layer to become an anchor rod with strong tensile (pull) force. [0003] At present, there is no soil anchor for anti-floating, and traditional engineering uses anti-floating piles to realize this function. However, compared with the soil anchor, the anti-floating pile has a larger bore hole diameter, and the bottom of the anti-floating pile is not reamed. need. Contents of the invention [0004] The object of the present invention is to prov...

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Problems solved by technology

[0004] The object of the present invention is to provide a hole-forming process for an anchor hole bottom reaming device in view of the problems that the existing anti-floating pile has a larger borehole diameter than the soil anchor rod, and the bottom of the pile does not ream the hole.

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