摘要
以硬梁包水电站引水隧洞高岭土化蚀变岩洞段施工为背景,采用TRT探测法、激发极化法(TIP)等综合物理探测方法,并结合常规地质超前探孔法和地质素描调查法等对岩体进行提前预报,分析岩体特性、断层分布、层理结构、地下水情况、波速变化等。基于三维成像和数字组合的立体预报体系,精确指导爆破工艺的调整,降低塌方和大超挖的风险。根据预报结果与实际地质对比验证,在高岭土化蚀变岩隧洞中超前地质预报结果准确度较高,可为类似隧洞的超前地质预报应用提供参考和借鉴。
Based on the construction of Kaolin altered section of headrace tunnel of Yingliangbao Hydropower Station,the comprehensive physical detection methods,such as TRT detection method and induced polarization method(TIP),are adopted.The characteristics of rock mass,fault distribution,bedding structure,groundwater condition and wave velocity change are analyzed by combining the conventional geological prospecting method and geological sketch survey method.The three-dimensional forecast system based on three-dimensional imaging and digital combination can guide the adjustment of blasting technology accurately,and reduce the risk of collapse and over-excavation.According to the comparison between the forecast results and the actual geology,the forecast results in the Kaolin altered rock tunnel have high accuracy,which can provide reference for the application of advanced geological forecast in similar tunnels.
作者
虞舜
朱松
李志明
杨再润
蒋顿
YU Shun;ZHU Song;LI Zhiming;YANG Zairun;JIANG Dun(Sinohydro Bureau 14 Co.,Ltd.,Kunming Yunnan 650000)
出处
《四川水力发电》
2023年第1期80-84,92,共6页
Sichuan Hydropower
关键词
超前
地质预报
长距离
不良地质
Advanced
Geological forecast
Long distance
Unfavorable geological conditions
作者简介
虞舜(1988-),男,云南祥云人,本科,中级工程师,从事水利水电工程施工管理工作;朱松(1998-),男,贵州铜仁人,本科,助理工程师,从事水利水电工程施工技术管理工作;李志明(1999-),男,云南腾冲人,本科,助理工程师,从事水利水电工程施工技术管理工作;杨再润(1982-),男,云南临沧人,专科,助理工程师,从事水电水利工程测量管理工作;蒋顿(1989-),男,云南曲靖人,专科,中级工程师,从事水利水电工程施工现场管理工作。
