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Construction method of foundation pit digging system

A construction method and system technology, applied in excavation, infrastructure engineering, soil protection, etc., to achieve the effect of improving stress properties, reducing difficulty, and connecting firmly

Active Publication Date: 2019-04-05
中建八局华南建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Construction method of foundation pit digging system
  • Construction method of foundation pit digging system
  • Construction method of foundation pit digging system

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0033] refer to Figure 2 to Figure 8 As shown, in the excavation system of the foundation pit, the main blast hole 2, the buffer hole 3 and the pre-split hole 4 are successively arranged in the soil layer 1 to be excavated, and the hydraulic combined blasting construction technology is used for blasting construction; 10 and the bearing platform 12 are provided with a platform buttress 13 and a platform runner 14, so that the bearing platform 12 is firmly connect...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/02E02D3/12F42D3/04F42D1/00F42D1/22
CPCE02D3/12E02D17/02F42D1/00F42D1/22F42D3/04
Inventor 王新泉
Owner 中建八局华南建设有限公司
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