Large-thickness collapsible loess foundation reinforcing structure

Abstract

The invention discloses a large-thickness collapsible loess foundation reinforcing structure. The foundation reinforcing structure comprises main supporting stand columns, bottom split-flow grouting assemblies, supporting anchor pieces, side trimming net arrangement devices and inner supporting assemblies, wherein the supporting anchor pieces are fixed to the lower end faces of the main supporting stand columns, the supporting anchor pieces are vertically embedded into inner sunken groove positions, the bottom shunting grouting assemblies are coaxially arranged on the lower sides of rod arms of the main supporting stand columns, the side trimming cloth net devices are detachably installed on the upper end faces of the main supporting stand columns, the side trimming cloth net devices conduct surface trimming on the inner edge side walls of the inwards-sunken groove positions, a plurality of layers of fastening net pieces cover the side trimming cloth net devices in a surrounding mode, and the main supporting stand columns are further sleeved with the inner supporting and protecting assemblies.

Description

technical field [0001] The invention relates to the technical field of civil engineering equipment, in particular to a large-thickness collapsible loess foundation reinforcement structure. Background technique [0002] In the process of building construction in Northwest my country and North China, the problem of dealing with large-thickness collapsible loess foundations is often encountered; in order to eliminate the hazards of loess collapsibility to engineering, compaction piles have become a method for dealing with collapsible loess foundations. way. It is formed by driving steel casings, vibrating immersed pipes, etc. to form pile holes in the soil, and then backfilling the holes with lime soil, cement soil or plain soil layer by layer and compacting them. However, considering the long project line and large area Therefore, it is expensive to use lime-soil piles for foundation treatment in a large area. Moreover, under the same pile spacing, the pile diameter in the low...

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Problems solved by technology

It is formed by driving steel casings, vibrating immersed pipes, etc. to form pile holes in the soil, and then backfilling the holes with lime soil, cement soil or plain soil layer by layer and compacting them. However, considering the long project line and large area Therefore, it is expensive to use lime-soil piles for foundation treatment in a large area. Moreover, under the same pile spacing, the pile diameter in the lower soil layer should be smaller than that in the upper soil layer, and different pile diameters in the upper soil layer and lower soil layer can be used. It is economical and reasonable, so it is necessary to propose a large-thickness collapsible loess foundation reinforcement structure to solve the above problems

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