高海拔长大富水斜井隧道涌水量预测及施工措施研究
Prediction of Water Inrush and Construction Measurement for Long Inclined Shaft Tunnel with Water-rich in High Altitude
王吉磊1
作者信息
- 1. 中铁十局集团有限公司,山东 济南 250012
- 折叠
摘要
为解决复杂富水环境下隧道地下水预测及控制问题,以新建某高原铁路隧道 4 号斜井为研究对象,综合应用超前预报方法、理论分析法和现场地质调查方法,确定隧道围岩含水带范围,预测隧道涌水量,分析涌水机理,并提出超前泄水孔+拱墙径向注浆的治理措施.结果表明,隧道围岩富水区域主要集中在构造发育段、碳酸盐岩发育段、浅埋沟谷段、下穿沟谷段和物探低阻段.实测隧道最大涌水量为正常涌水量的 1.82～3.27 倍,与正常涌水量相比,裘布依方法预测值偏小,佐藤邦明理论公式所得预测值略大,其精度大于裘布依方法.与最大涌水量相比,佐藤邦明理论公式得到的预测值明显偏大,古德曼法得到的预测值略大,其精度大于佐藤邦明理论公式计算结果.
Abstract
In order to solve the problem of groundwater prediction and control in tunnels under complex water-rich environments,a new plateau railway tunnel No.4 inclined shaft was taken as the research object,the advanced prediction method,theoretical analysis method,and on-site geological investigation method were comprehensively applied to determine the water content range of the tunnel surrounding rock,predict the tunnel water inflow and the mechanism of water inflow,and propose a treatment measure of advanced drainage hole+arch wall radial grouting.The results show that,the water-rich areas are mainly concentrated in the structural development section,carbonate rock development section,shallow buried valley section,underpass valley section,and geophysical low resistance section.The measured maximum water inflow is 1.82～3.27 times the normal water inflow,compared with normal water inflow,the predicted value of the Dupuit method is smaller,while the predicted value obtained by the Sato Bangming theory method is slightly larger,with higher accuracy than the Dupuit method.Compared with the maximum water inflow,the predicted value obtained by Sato Bonming's theory method is significantly larger,while the predicted value obtained by Goodman's method is slightly larger,with higher accuracy than Sato Bonming's theory method.
关键词
隧道/涌水量/预测/措施/注浆帷幕Key words
tunnels/water inflow/prediction/measurement/grouting curtain引用本文复制引用
基金项目
2023年山东省工信厅第二批创新项目(202360800260)
中铁十局集团有限公司科技创新项目(2022-C12)
出版年
2024
NETL
NSTL
维普
万方数据