软岩富水隧道突涌水等级判识及整治关键技术  

Key Technology for Water Inrush Identification and Remediation of Grade in Soft Rock Water-rich Tunnels

作　　者：罗世刚[1] LUO Shigang(Sinohydro Bureau 7 Co.,Ltd.,Chengdu Sichuan 610213)

机构地区：[1]中国水利水电第七工程局有限公司,四川成都610213

出　　处：《四川水力发电》2024年第5期51-54,共4页Sichuan Hydropower

摘　　要：在隧道及地下工程建设过程中,不良地质环境下突涌水的防范及应急处置十分重要,其涉及到隧道的施工进度、环境保护以及公共安全等多个方面。对突涌水的判识通常是从水量、压力、频率和强度等方面进行评估,结合地质勘察报告及水文气象资料等准确判断可能存在的风险。对于突涌水的整治,其首要任务是确定涌水点的位置、规模、压力以及可能影响的范围;其次需要根据隧道及地下工程的结构特点及施工条件等制定出相应的整治方案。阐述了通过总结某软岩富水洞段掌子面对突涌水整治采用的关键施工技术,如洞渣反压回填、掌子面混凝土封闭、加设泄水孔、增设套拱补强初支、加强超前支护及初支段径向加固等措施联合使用,有效地解决了软岩段突涌水整治的难题。During the construction process of tunnels and underground engineering,the prevention and emergency treatment of undesirable geological water inrush are very important.It involves many aspects such as the construction progress of the tunnel,environmental protection and public safety.The identification of water inrush is usually evaluated from the aspects of water volume,pressure,frequency and intensity,combined with geological survey reports and hydrometeorological data,so as to accurately judge the possible risks.For the remediation of water inrushes,the first task is to determine the location,scale,pressure and possible scope of influence of the water inrush point.Then,according to the structural characteristics and construction conditions of the tunnel and underground engineering,the corresponding remediation plan needs to be formulated.In this paper,by summarizing the key technologies for the remediation of the inrush of the tunnel face of a water-rich section of soft rock,the measures of backfilling of the slag,concrete sealing of the tunnel face,the addition of drainage holes,the addition of arch reinforcement of the primary support,the strengthening of the advanced support and the radial reinforcement of the primary support section are used together,which effectively solves the problem of water inrush remediation in the soft rock section and provides experience for similar projects in the future.

关 键 词：软岩富水 突涌水 等级判识 隧道 

分 类 号：U25[交通运输工程—道路与铁道工程] U215.7