KDL—3型地质雷达在海南东线高速公路大茅隧道中的应用  

Application of Type KDL -3 Geological Radar to Damao Tunnel on the Dongxian Express Highway in Hailan

作　　者：王连成[1] 李大洪[1] 高克德[1] 

机构地区：[1]煤炭科学研究总院重庆分院

出　　处：《世界隧道》1999年第6期45-48,共4页

摘　　要：海南东线高速公路大茅隧道全长1070m,由于花岗岩受风化后围岩条件变得复杂,施工中多处发生坍塌,施工严重受阻。应用KDL—3型防爆地质雷达技术后,采用隧道内跟踪超前探测与地面沿隧道轴线向下探测相结合的方法,对尚未开挖段掘进前方地质状况进行了成功预测,并查清了多个大塌洞的空洞形态,为隧道开挖和制定处理方案提供了依据。The construction of Dongxian highway in Hailan, with the total length of 1070m, was seriously interrupted due to the complex surrounding rock caused by the weathering of granite and many collapses occurred in the construction. With the application of type KDL - 3 explosion - proof geologic radar, the geological condition of the front was thus successfully forecasted and many cavities were also found by means of both the advanced tracing detection in tunnel and the downward detection from ground level along the axis of tunnel, which provides the basis for tunnel excavation and its solution .

关 键 词：地质雷达 超前探测 公路隧道 KDL-3型 

分 类 号：U459.2[建筑科学—桥梁与隧道工程] U452.1[交通运输工程—道路与铁道工程]