河南水利与南水北调2023，Vol.52Issue(12)：128-130,3.
深埋隧道注浆参数对衬砌涌水量和外水压力的影响分析
Analysis of the Influence of Grouting Parameters on the Water Inflow and External Water Pressure of Deep-buried Tunnel
豆品鑫1
作者信息
- 1. 新疆水利水电勘测设计研究院有限责任公司,新疆 乌鲁木齐 830000
- 折叠
摘要
Abstract
The phenomenon of water gushing in deep-buried tunnel construction in karst area will cause serious geological disasters.The estimation of external water pressure and water gushing amount is of great significance to the structural design of lining and grouting ring.The analytical solutions of external water pressure and water inflow in deep karst tunnel under saturated steady flow condition are derived in this paper.The variation of infiltration coefficient and the reduction coefficient of external water pressure with lining parameters and grouting parameters are analyzed.The results show that both the infiltration coefficient and the external hydraulic pressure reduction coefficient of the lining decrease with the increase of the thickness of the grouting area.When the thickness of grouting ring is between 4m and 6m,the ratio of permeability coefficient between surrounding rock and the grouting area is about 100.关键词
涌水量/隧道衬砌/外部水压/注浆Key words
water gushing/tunnel lining/external water pressure/grouting分类
建筑与水利引用本文复制引用
豆品鑫..深埋隧道注浆参数对衬砌涌水量和外水压力的影响分析[J].河南水利与南水北调,2023,52(12):128-130,3.
