Stratum pre-reinforcement treatment method for underground space construction

A technology of underground space and treatment method, which is applied in excavation, artificial islands, water conservancy projects, etc., can solve problems such as inability to prevent weathering, inability to seal surrounding rocks, cracked rock spalling, etc., achieve good earthquake resistance, improve self-stability, fully The effect of using

Inactive Publication Date: 2015-12-23
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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  • Stratum pre-reinforcement treatment method for underground space construction
  • Stratum 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; Horizontal perforated piles 1 and vertical perforated piles 2 are overlapped to form a cross-section simply supported beam support structure on the excavation surface around the contour line of the proposed underground space 4; before excavation of the underground space, along the proposed underground The strata around the spatial contour line are reinforced horizontally and vertically to form a supporting structure that can support the stratum. The vertical perforated piles 2 are placed above the proposed underground space, and the horizontal perforated piles 1 are placed on the ground. The stratum on one side of the excavation surface is carried out, and the stratum is partially excavated first as the construction surface of the horizontal...

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Abstract

The invention discloses a stratum pre-reinforcement treatment method for underground space construction. The stratum pre-reinforcement treatment method comprises the step of before digging of an underground space, lapping along a horizontal boring filling pile and a vertical boring filling pile of formation water at the periphery of the outline of the underground space to be constructed to form a sectional simply supported beam supporting structure. The stratum pre-reinforcement treatment method improves the stratum stability and strength, further improves the stability of surrounding rock after digging of the underground space, ensures that soil above a tunneling face cannot collapse during tunneling of the underground space to guarantee successful and safe construction without restriction from the geographical environment, can realize intersection and interworking between underground spaces, can utilize the underground spaces more fully and effectively, is particularly suitable for a cave-dwelling building built around mountains in the landscape of loess plateau, can serve as the main support mode of the whole building, is simple to operate and good in earthquake resistance, and can achieve a long-term stable effect.

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 Applications(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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