Method of rectifying inclination by drilling and cutting piles at intervals

Abstract

The invention provides a rectifying method by drilling at intervals and pile cutting off. The method includes excavating at least two constructing wells along the longitudinal direction of the light settlement side, communicating all the constructing wells, excavating a plurality of horizontal roadways, determining the pile cutting height of each concrete pile from the light settlement side to the heavy settlement side in a same row of concrete piles according to designed maximum rectifying amount by the principle of similar triangles, cutting off piles in batches, and arranging a pre-reserved stripe between two adjacent pile-cutting holes on one concrete pile; rectifying by the own weight of an inclined building and force of an anchor cable arranged at the light settlement side until a rectifying target is achieved; patching the pile-cutting hole, filling back the wells and the roadways, and finishing rectifying of the inclined building. By the aid of the method, blindness and sudden sinking effect of pile cutting off can be avoided effectively, rectifying risks are reduced, defects of poor controllability, difficulty in mastering pile cutting amount accurately and the like are overcome, controllability and security of rectifying are improved greatly, and the method can be applied in the fields of building rectifying and reinforcing.

Description

technical field [0001] The invention belongs to the technical field of rectification engineering of buildings or structures, and relates to a method for rectifying the rectification of buildings or structures, in particular to a method for rectifying rectification of piles by interval drilling. Background technique [0002] People build a large number of buildings (structures) for the needs of production and life, but due to improper foundation treatment or improper use, some buildings (structures) tilt during construction or use, and the light ones affect the construction. The normal use of the (structure) building will lose its function in severe cases, or even collapse and damage. According to the survey and research of authoritative organizations, my country currently builds about 2 billion square meters of new buildings every year, consuming 40% of the world's steel and cement, and the average life span of these buildings is only 25 to 30 years. Whether it is new const...

AI Technical Summary

Problems solved by technology

However, at present, since the pile-cutting rectification method has not yet formed a systematic theoretical system, the engineering practice is still guided by drawing on past experience, that is: according to the calculated inclination, the pile-cutting tool is often used at the bottom of the pile on the side with less sinking. The pile is directly cut off and taken out; in the process of rectifying the inclination of this kind of pile, each support point cannot be uniformly stressed, and cannot be quantitatively controlled. It belongs to brittle failure and is prone to sudden settlement

Therefore, it is difficult to accurately grasp the amount of piles cut by this type of rectification method, and the building (structure) is prone to sudden settlement, high construction risk, poor controllability, and low rectification benefit, especially for those inclined high-rise buildings with composite foundations. As far as buildings are concerned, the difficulty of rectification and construction risks are even greater

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