摘要
高速铁路隧道为狭长管状结构物,穿越地层复杂多变。如何快速准确获取掌子面前方地质信息,对于确定开挖工法和支护参数,确保隧道施工安全,规避施工风险具有重要意义。以中(卫)兰(州)客专某大断面隧道工程为依托,详细介绍了TSP地震反射波法在薄层状裂隙片岩地层中的超前地质预报技术及现场开挖验证对比分析。现场实践表明,裂隙水不发育的片岩地层,TSP地震反射波法预报较为准确。
The high-speed railway tunnel is a long,narrow tube structure,which crosses complex and changeable strata.How to quickly and accurately obtain the geological information in front of the tunnel is of great significance for determining the excavation method and supporting parameters,ensuring the safety of tunnel construction and avoiding construction risks.Based on a large-section tunnel project in the Zhongwei to Lanzhou Passenger Specialized Railway,this paper introduces the geological prediction technology of TSP in the thin layer of cracked schist,and the comparative analysis of field excavation verification.Field practice shows that the TSP method is more accurate for schist formations with undeveloped fractured water.
作者
郑烨晨
石宏泰
黄河
付庭茂
樊茂林
Zheng Yechen;Shi Hongtai;Huang He;Fu Tingmao;Fan Maolin(The Third Engineering Co.,Ltd of China Railway Seventh Group,Xi’an 710000,China)
出处
《山西建筑》
2021年第4期123-124,共2页
Shanxi Architecture
关键词
高速铁路隧道
超前地质预报
TSP地震反射波法
薄层裂隙片岩
high-speed railway tunnel
geological prediction
Tunnel Seismic Prediction
thin layer of cracked schist
