Soil-rock geological foundation pit forming construction method

Abstract

The invention discloses a soil-rock geological foundation pit forming construction method. The method comprises the steps that S1, the position of a foundation pit on the original ground is slightly leveled, and a steel plate mold is placed on the ground; S2, a breaking hammer is vertically inserted into the ground through an opening of the steel plate mold, holes are dug through the breaking hammer till the depth of the holes meets the design requirement, and the breaking hammer is pulled out; S3, hole plugging molds are inserted into the pit holes dug by the breaking hammer; S4, the breaking hammer is vertically inserted and pulled out according to the number, the hole plugging mold is inserted, and the operation is repeated until the hole plugging mold is inserted into the last hole; S5, all the hole plugging molds are pulled out, and the steel plate mold is taken away; and S6, the holes in the foundation pit are connected, and a protective fence stand column foundation pit is formed. The construction progress is accelerated: compared with traditional foundation pit excavation, the method has the advantages that extrusion hole forming of existing equipment, namely the breaking hammer is rapid and does not waste resources. And meanwhile, the construction quality is guaranteed: the foundation pit quality is guaranteed, surrounding rock and soil cannot be disturbed, and the disturbance of the bottom of the foundation pit is guaranteed.

Description

technical field [0001] The invention relates to the field of engineering construction, in particular to a construction method for forming a soil-interbedded rock geological foundation pit. Background technique [0002] The foundation pit is an essential part of the process of infrastructure construction. However, there are various construction methods for foundation pit excavation. It is a small foundation pit, the national standard protective fence foundation pit length * width * height = 60*60*70cm is relatively small, manual excavation is affected by the soil and rocks, and the construction cannot be carried out every time the shovel touches the stones, the progress is slow and inefficient , the span of the 12-36° column of the protective fence is generally 1.15m. If the excavator digs a large foundation pit, the foundation pit and the foundation pit are connected to each other to form a ditch. However, after the installation of the protective fence column and the lower s...

AI Technical Summary

Problems solved by technology

[0002] The foundation pit is an essential part of the process of infrastructure construction. However, there are various construction methods for foundation pit excavation. It is a small foundation pit, the national standard protective fence foundation pit length * width * height = 60*60*70cm is relatively small, manual excavation is affected by the soil and rocks, and the construction cannot be carried out every time the shovel touches the stones, the progress is slow and inefficient , the span of the 12-36° column of the protective fence is generally 1.15m. If the excavator digs a large foundation pit, the foundation pit and the foundation pit are connected to each other to form a ditch. However, after the installation of the protective fence column and the lower sill is completed, Then backfill, it is difficult and inefficient to backfill the foundation pit due to the impact of the lower sill

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