A comprehensive rectification method for multi-support foundation reinforcement

Abstract

The invention provides a multi-support foundation strengthening comprehensive controlling method, which comprises steps: 1 vertical shafts are excavated beside a building; 2 anchor cables are fixedly constructed; 3 the anchor cables are provided with a force adding system and a force measuring system; 4 a vertical steel pipe column, a vertical lime pile, a lime pile leaned 45 degrees and lime pile leaned 60 degrees are arranged; 5 the anchor cables are loaded and tensioned in a graded mode through a hydraulic jack; 6 the anchor cables are stressed or goes on to horizontally dig soils when not achieving to a rectification target; 7 the anchor cables are locked after achieving an intended rectification target; 8 a reinforcing cage skeleton is arranged between the steel pipe pile and a raft foundation, and is irrigated with concrete; and 9 various excavated vertical shafts and digging-out-soil holes are backfilled. The multi-support foundation strengthening comprehensive controlling method organically combines forced landing, expansion and jacking, can control tilt direction and tilt speed of a building, further guarantees satiability of the building, and enables tilt not to happen again.

Description

technical field [0001] The invention relates to a building rectification method, in particular to a comprehensive rectification method for multi-support foundation reinforcement. Background technique [0002] Due to survey errors, improper design, poor construction quality, use and maintenance, and natural disasters, buildings (structures) often sink unevenly, and diseases such as tilting, warping, cracking, and sinking occur. In addition, the development of underground space and the excavation of deep foundation pits often cause uneven subsidence of adjacent ground buildings (structures), causing cracks and inclinations of ground buildings (structures). The normal use of the structure) will cause it to lose its function in severe cases, or even collapse and damage, causing heavy economic losses and casualties. [0003] For buildings (structures) whose integrity is still good after tilting, if they are used as usual, there is always some sense of insecurity. If they are aba...

AI Technical Summary

Problems solved by technology

But there are still many deficiencies. First of all, for buildings (structures) with relatively large inclination, because the amount of soil excavated by the shallow excavation and forced landing method is limited, the real rectification effect cannot be achieved. Other rectification methods that are also used alone, It is also difficult to achieve the rectification effect for buildings (structures) with relatively large inclinations.

Secondly, the single use of the shallow excavation forced landing method to make the inclined buildings (structures) forced to land and rectify the inclination cannot monitor the forced landing situation of the inclined buildings (structures) in real time, and cannot accurately control the forced landing rate, so that it is impossible to achieve accurate rectification effect

Again, rectification is only a palliative, not a permanent cure. The cause of the settlement of the building (structure) has not been eliminated after the rectification, and the building (structure) still has the possibility of tilting and subsidence again, which has great potential for accidents and low safety.

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