A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Water-rich stratum structure with soft upper part and hard lower part and construction method
The invention discloses a water-rich stratum structure with a soft upper part and a hard lower part and a construction method. The structure comprises continuous walls, wherein the continuous walls comprise a transverse continuous wall and a vertical continuous wall; the transverse continuous wall and the vertical continuous wall are used for dividing a water-rich stratum plane with the soft upper part and the hard lower part into cabins; the transverse continuous wall is a certain distance away from a primary support outer contour; the vertical continuous wall enters a waterproof medium-micro weathered rock stratum to separate underground water; a plurality of dewatering wells are arranged in a cabin dividing enclosing range of the continuous walls; after the continuous walls are constructed and closed, continuous dewatering is carried out in the cabins; and after the continuous walls are subjected to cabin dividing dewatering, grouting reinforcement is carried out to form a grouting layer. According to the water-rich stratum structure with the soft upper part and the hard lower part and the construction method, water interception, dewatering, reinforcement and mining method tunnel excavation can be realized in a limited range, the influence on the surrounding environment is reduced, the problems of large excavation depth, high manufacturing cost and high risk of an open excavation method of a deep-buried structure of the water-rich stratum with the soft upper part and the hard lower part are effectively solved, and the water-rich stratum structure with the soft upper part and the hard lower part and the construction method are successfully applied in practical engineering.
本发明公开了一种上软下硬富水地层结构及施工方法，该结构包括连续墙，连续墙包括横向连续墙和竖向连续墙，横向连续墙和竖向连续墙将上软下硬富水地层平面上分仓，横向连续墙距离初支外轮廓一定距离，竖向连续墙进入不透水中微风化岩层隔断地下水，连续墙分仓围闭范围内设置若干降水井，连续墙施工封闭后在舱内持续降水，连续墙分仓降水后进行注浆加固形成注浆层。本发明能在有限的范围内实现截水、降水、加固和矿山法隧道开挖，减少对周边环境的影响，有效解决上软下硬富水地层深埋结构明挖法开挖深度大、造价高的、风险高的难题，且在实际工程中得到成功应用。
Water-rich stratum structure with soft upper part and hard lower part and construction method
The invention discloses a water-rich stratum structure with a soft upper part and a hard lower part and a construction method. The structure comprises continuous walls, wherein the continuous walls comprise a transverse continuous wall and a vertical continuous wall; the transverse continuous wall and the vertical continuous wall are used for dividing a water-rich stratum plane with the soft upper part and the hard lower part into cabins; the transverse continuous wall is a certain distance away from a primary support outer contour; the vertical continuous wall enters a waterproof medium-micro weathered rock stratum to separate underground water; a plurality of dewatering wells are arranged in a cabin dividing enclosing range of the continuous walls; after the continuous walls are constructed and closed, continuous dewatering is carried out in the cabins; and after the continuous walls are subjected to cabin dividing dewatering, grouting reinforcement is carried out to form a grouting layer. According to the water-rich stratum structure with the soft upper part and the hard lower part and the construction method, water interception, dewatering, reinforcement and mining method tunnel excavation can be realized in a limited range, the influence on the surrounding environment is reduced, the problems of large excavation depth, high manufacturing cost and high risk of an open excavation method of a deep-buried structure of the water-rich stratum with the soft upper part and the hard lower part are effectively solved, and the water-rich stratum structure with the soft upper part and the hard lower part and the construction method are successfully applied in practical engineering.
本发明公开了一种上软下硬富水地层结构及施工方法，该结构包括连续墙，连续墙包括横向连续墙和竖向连续墙，横向连续墙和竖向连续墙将上软下硬富水地层平面上分仓，横向连续墙距离初支外轮廓一定距离，竖向连续墙进入不透水中微风化岩层隔断地下水，连续墙分仓围闭范围内设置若干降水井，连续墙施工封闭后在舱内持续降水，连续墙分仓降水后进行注浆加固形成注浆层。本发明能在有限的范围内实现截水、降水、加固和矿山法隧道开挖，减少对周边环境的影响，有效解决上软下硬富水地层深埋结构明挖法开挖深度大、造价高的、风险高的难题，且在实际工程中得到成功应用。
Water-rich stratum structure with soft upper part and hard lower part and construction method
一种上软下硬富水地层结构及施工方法
YANG CHENXIANG (author) / MENG XIAOWEI (author) / ZHAO PING (author) / GAO JUN (author) / CHEN XIN (author) / XIA JING (author) / SUN QINGJIE (author) / ZHANG CHUNMIN (author) / DONG XIAOBIAO (author) / JIANG QIANGFU (author)
2021-04-27
Patent
Electronic Resource
Chinese
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