Ground pre-reinforcement treatment method for underground space construction

A technology of underground space and treatment method, applied in excavation, artificial islands, water conservancy projects, etc., can solve the problems of unable to prevent weathering, unable to seal the surrounding rock, cracked rock peeling, etc., to achieve good seismic resistance, improve self-stability, fully The effect of using

Inactive Publication Date: 2017-08-25
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology

However, the front bolt support measures cannot seal the surrounding rock, nor can it prevent weathering. Over time, it will lead to the spalling of the rocks in the cracks between the bolts.

Method used

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  • Ground pre-reinforcement treatment method for underground space construction
  • Ground pre-reinforcement treatment method for underground space construction

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Embodiment Construction

[0019] figure 1 Schematic diagram of the pre-reinforcement treatment structure for the underground space, figure 2 It is a cross-sectional view of the connecting portion of the horizontal perforated pile and the vertical perforated pile; The stratum 3 around the contour line of the proposed underground space 4 is overlapped with the horizontal perforated pile 1 and the vertical perforated pile 2 to form a cross-section simply supported beam support structure on the excavation surface; before the excavation of the underground space, along the proposed The stratum 3 around the contour line of the underground space is reinforced horizontally and vertically to form a support structure that can support the stratum. The vertical perforated pile 2 is carried out above the proposed underground space, and the horizontal perforated pile 1. It is carried out on the stratum adjacent to the side of the excavation surface. First, the stratum is partially excavated as the construction surf...

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Abstract

The invention discloses a ground pre-reinforcement treatment method for underground space construction, which comprises the following steps: before excavating the underground space, horizontal perforated cast-in-place piles and vertical perforated cast-in-place piles are formed by lapping the strata around the contour line of the proposed underground space Cross-section simply supported beam support structure located on the excavation surface; this pre-reinforcement treatment method improves the stability and strength of the stratum, thereby improving the stability of the surrounding rock after the excavation of the underground space, ensuring that the excavation of the underground space can be carried out smoothly. The soil above the surface does not collapse to ensure the smooth progress and safety of the construction, and it is not restricted by the geographical environment. It can realize the intersection and communication between the underground spaces, and can make full and effective use of the underground space. For the Loess Plateau landform This method is especially suitable for cave dwelling buildings built near mountains, and can also be used as the main support of the entire building. The construction method is simple, the earthquake resistance is good, and it can achieve long-term stability.

Description

technical field [0001] The invention relates to an underground space construction method, in particular to a stratum pre-reinforcement treatment method for underground space construction. Background technique [0002] With the advancement of urbanization, the above-ground space in the city has become smaller and smaller. Only by scientifically developing the underground space can the city's carrying capacity and sustainable development capacity be effectively improved. The development and utilization of underground space is conducive to the economical use of land. Cave dwellings are one of the original ways of using underground space. As a type of cave in underground space, the construction method is as follows: digging the foundation, digging the foundation, scraping the cliff surface, and then starting to dig the cave. After the cave is built, Then there is the arrowhead kiln, or "tick kiln" or "milling kiln". Cut out the arch from the top of the kiln, scrape off the sid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045E02D17/04
Inventor 杨庆国陈世民赵朝华谷建义何琳韩勇陈燕
Owner CHONGQING JIAOTONG UNIVERSITY
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