Pile head breaking method

Abstract

The invention belongs to the technical field of detachment of brittle solid, and particularly provides a pile head breaking method in order to solve the problems that pile head detachment efficiency is low, the cost is high, and pollution is serious. The pile head breaking method comprises the steps that a plurality of operation holes are formed in a to-be-broken axis surface of a pile head; an intra-hole cylinder type hydraulic stone breaker is provided and comprises a set of expansion devices matched with the operation holes; and the set of expansion devices are inserted into the multiple corresponding operation holes so that the intra-hole cylinder type hydraulic stone breaker can act, and the pile head is expanded and broken along the to-be-broken axis surface. By means of the pile head breaking method, the breaking efficiency of the pile head is improved, the breaking cost is saved, and breaking pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of demolition of brittle solids, and specifically provides a method for demolition of a pile head. Background technique [0002] The pile heads are made of concrete with an internal steel cage. At present, in the demolition construction of the pile head, the manual method or the pile breaker construction method is usually used. The artificial method is to first chisel off the protective layer concrete outside the pile head reinforcement with a pick to expose the reinforcement, and then wedge the steel drill along the concrete circumference inside the reinforcement cage at the same horizontal plane, taking advantage of the fact that the compressive strength of the concrete is much greater than the tensile strength With the help of the tension of the steel drill wedge, a section of the pile head on the upper part of the pile head is separated from the expansion crack of the lower part, and then cleared out wi...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problems of low efficiency, high cost and large pollution of pile head demolition, the present invention provides a method for demolition of pile heads, the method includes: determining the pile head to be Demolish the axial surface, and form several working holes on the axial surface to be demolished; provide a column-type hydraulic rock cracker in the hole, and the column-type hydraulic rock cracker in the hole includes the number of working holes A matched set of expansion devices; insert the set of expansion devices into the corresponding working holes and make the column hydraulic rock breaker in the holes move so that the pile heads are along the axis to be demolished Swelling and cracking

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