摘要
马鹿箐隧道先后发生了"1.21"、"4.11"等多次突涌水事故,为探明ⅡDK255+978溶腔岩溶水规模,前期采用出口平导探测,后期进行了补勘与强化预测、预报。施工中通过运用TSP203、红外探测、地质雷达、超前地质钻孔等多种探测技术,准确锁定了溶腔含水体区域和溶腔边界,准确掌握了溶腔充填物性质,成功地保障了其后处理措施的实施。
Water inrushes occurred several times in Malujing tunnel,such as ＂1.21＂and ＂4.11＂ water inrush accidents.In order to investigate the scale of karst water in a cavity,parallel heading detection was performed in the early stage at tunnel exit.In the later stage supplemental geological prospecting and strengthened predictions were carried out.By means of TSP203,IR detection,geological radar,advance boreholes and exploration technologies,the area and boundary of cavity were accurately located,and the properties of the filling were understood very well,which ensured the successful implementation of subsequent treatment measures.
出处
《现代隧道技术》
EI
北大核心
2011年第1期128-132,共5页
Modern Tunnelling Technology
关键词
铁路隧道
溶腔
预测预报
Malujing tunnel
Cavity at ＋987
Geological forecast technique
