Construction method of foundation pit excavation system

Abstract

The invention relates to a construction method of a foundation pit digging system. The method includes the steps: 1) combined blasting construction; 2) cutting auxiliary device arrangement; 3) cuttingconstruction; 4) weak surrounding rock reinforcement construction; 5) drilling platform erecting; 6) riding track protection layer digging. The construction method has the advantages that inclined cutting holes are radially formed, cutting construction ranges can be accurately controlled, cutting construction quality is improved, positioning strip plates enclose storage cavities of water bags, explosive and stemming, horizontal dividing plates and positioning hoop plates are arranged at boundaries of different materials, blasting material positioning and arranging difficulty can be reduced,onsite construction efficiency is improved, reinforcement grouting pipes, surface curing bodies and reinforcement pressing plates are arranged at weak surrounding rocks, the integrality of the weak surrounding rocks can be enhanced from multiple angles, and stress conditions of a slope structure are improved.

Description

technical field [0001] The invention relates to a construction method of a foundation pit excavation system, belongs to the field of foundation pit engineering, and is suitable for foundation pit excavation construction projects. Background technique [0002] During foundation pit excavation construction, the problem of rock slope excavation is often encountered. In this regard, in order to reduce the damage of construction to the surrounding environment, it is necessary to study the excavation and blasting structure, so as to save the cost of on-site construction measures and reduce the difficulty of construction. [0003] In the prior art, there is an excavation device for expanding the foundation pit, which is characterized in that the vertical partition cutter and the slope cutter plate are controlled by a computer control system, and the slope cutter guide is set on the base to control and adjust the slope surface. Slope, a blade is set inside the slope cutting board t...

AI Technical Summary

Problems solved by technology

Although this construction method can accurately control the excavation size and improve the construction efficiency to a certain extent, there are still some improvements in engineering applicability and other aspects.

[0004] In summary, although the existing construction methods have achieved good construction results under suitable working conditions, there are still deficiencies in improving the integrity of the foundation pit slope support structure and saving on-site construction costs.

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