综合物探法在复杂地质条件下建设高速公路的应用  

Application of Integrated Geophysical Prospecting Method in Expressway Under Complicated Geological Conditions

作　　者：张建忠[1] 周晓林[1] Zhang Jianzhong;Zhou Xiaolin(The 102 Geological Team,Guizhou Bureau of Exploration and Development of Geology and Mineral Resources,Zunyi,563003)

机构地区：[1]贵州省地矿局102地质大队,遵义563003

出　　处：《西部资源》2021年第1期158-161,共4页Western Resources

摘　　要：贵州省仁(怀)赤(水)高速公路K77-K78+800路段从采煤区、岩溶区及破碎带穿过,对工程存在较大的潜在危害性。工程勘查前期采用物探方法先行查清不良地质体的基本赋存状态,根据岩溶、破碎带、煤矿采空区及塌陷区表现的地球物理特征,选择了综合物探方法进行勘探,解释判定了岩溶区、破碎带、采空区空间赋存状态及塌陷状态,经钻探工程验证,证实了物探解释正确,综合物探方法有效,避免了单一物探方法的多解性和不确定性,实现了优势互补,提高了物探解释的可靠性,为工程勘查提供了准确、可靠的信息,为在复杂地质条件下工程勘查提供了有效的物探技术手段。The K77-K78+800 section of the Ren Chi expressway in Guizhou Province,through the coal mining area,the karst area and the broken zone,has great potential hazard to the project.In the early stage of engineering exploration,the basic state of the harmful geologic body is identified by geophysical methods.According to karst,fracture zone,coal mine goaf and subsidence area show geophysical characteristics,chosen comprehensive geophysical methods for exploration,interpretation to determine the fracture zone,karst area,goaf spatial occurrence and collapse state,Verified by drilling engineering,it was proved that the geophysical interpretation is correct.Comprehensive geophysical prospecting method can effectively avoid the ambiguity and uncertainty of single geophysical methods,to achieve the complementary advantages,improve the reliability of the geophysical interpretation,provide accurate and reliable information for engineering exploration,is under complicated geological conditions in engineering exploration provides an effective means of geophysical technology.

关 键 词：电磁测深法 土壤测氡法 采空区及塌陷区 岩溶 破碎带 

分 类 号：P631[天文地球—地质矿产勘探] U412.2[天文地球—地质学]