多元联合探测技术在不良地质隧道施工中的应用  

Application of Multivariate Combined Detection Technology in Tunnel Construction of Unfavorable Geology

作　　者：高昆 Gao Kun(Zhong Jiao Jian Ji Jiao Highway Investment Development Co.,Ltd.,Shijiazhuang 050000,China)

机构地区：[1]中交建冀交高速公路投资发展有限公司,石家庄市050000

出　　处：《北方交通》2023年第5期74-77,共4页Northern Communications

摘　　要：隧道穿越断层破碎带、裂隙发育带及埋深较浅的沟谷等不良地质时,开挖过程中围岩稳定性及施工安全受到影响。因此,在施工期间对掌子面前方开展超前地质预报工作非常有必要。采用“TSP探测+地质雷达+地质素描”综合预测预报方法,以地质调查分析为基础,进行TSP长距离初步探测、地质雷达短距离核心探测,并通过地质素描进行补充验证。工程实例应用取得了较好的预测效果,成功预报了F27断层破碎带的出现,为隧道安全施工提供了保障。该技术可正确指导施工,对类似工程具有参考价值。When the tunnel passes through unfavorable geology such as fault fracture zone,fissure development zone,and shallow buried valley,the stability of surrounding rock and construction safety are affected during the excavation process.Therefore,it is necessary to carry out the advanced geological prediction work in front of the work area during construction.The comprehensive forecasting and prediction method of"TSP detection+geological radar+geological sketch"is adopted,and TSP long-term preliminary detection and geological radar short-term core detection are carried out based on the geological survey and analysis,and the supplementary verification is performed through the geological sketch.The application of project case has achieved good prediction results,successfully predicting the occurrence of the F27 fault fracture zone,providing the guarantee for the safe construction of the tunnel,correctly guiding the construction,and providing reference value for similar projects in the future.

关 键 词：隧道施工 综合地质预测预报 断层破碎带 TSP 地质雷达 

分 类 号：U452.11[建筑科学—桥梁与隧道工程]