摘要
岩溶区修建隧道,易出现涌水现象,危害较大。针对华蓥山隧道左洞左侧拱腰涌水情况,采取注浆堵水的方法,遵循"先无水后有水,先小水后大水"的原则。采取主要步骤为:打孔引排、封闭涌水点、径向注浆加固扩大防渗圈。对靠近溶洞的拱腰位置,将防渗圈范围扩大。通过科学的注浆设计,合理的注浆材料选择,顺利地封堵了该涌水点。该工程治理实例对类似工程问题的解决具有一定的借鉴和参考价值。
The construction of tunnels in karsts areas is prone to water inrush, which is harmful. In view of the water gushing from the left arch waist of Huaying Mountain Tunnel, the grouting method is adopted, following the principle of "no water before water, small water before big water", and the main steps are as follows: drilling and drainage , closing the water gushing point, radial grouting reinforcement and enlarging the anti-seepage ring. For the arch waist position near the karsts cave, the scope of the impervious circle will be expanded. Through scientific grouting design and reasonable grouting material selection, the water inflow point was smoothly blocked. This project gover-nance example has certain reference value for solving similar engineering problems.
作者
唐勇
TANG Yong(Sichuan Luqiao Highway Tunnel Branch,Chengdu 610200,China)
出处
《广东交通职业技术学院学报》
2019年第1期14-17,共4页
Journal of Guangdong Communication Polytechnic
关键词
隧道
涌水治理
径向注浆
tunnel
water inrush control
radial grouting
