厦深铁路桑浦山隧道穿越F1断层带施工技术分析

厦深铁路桑浦山隧道全长5 500 m,隧道设计在DK215＋893～DK215＋947（54 m）段为F1断裂破碎带,F1断层沿断裂带花岗岩被挤压成碎裂岩,并具有硅化和糜棱岩化。根据桑浦山隧道工程地质、水文地质以及隧道工程特点,对桑浦山隧道穿越F1断层断裂破碎带的施工方案进行了详细分析,介绍了隧道穿越不同地层破碎带的施工技术,以其指导隧道的施工,确保工程安全。

Analysis on Technology of Construction of Crossing F1 Fault Belt by Sangpu Mountain Tunnel of Xiamen to Shenzhen Railway

The overall length Sangpu Mountain tunnel of Xiamen to Shenzhen railway is 5 500 meters.Tunnel was designed in DK215＋893～DK215＋947（54 m）which was F1 fractured zone.F1 fractured zone was extruded into fractured rock which had features of silication and mylonitization.Through practicing the Sangpu Mountain crossing F1 fault tunnel construction experience and combining with the tunnel engineering geology,hydrogeology and tunnel engineering characteristics,Sangpu Mountain tunnel through F1 fault fractured zones of construction project detailed analysis,this paper introduced the tunnel through different formation fracture zone construction technology,with its guidance tunnel construction,and to ensure the project safety.