综合物探技术在长大公路隧道勘察中的应用研究  

Application of integrated geophysical prospecting technique in long highway tunnel survey

作　　者：赖刘保 陈昌彦[1,2] 张辉[1,2] 王铁领 张健[3] 

机构地区：[1]北京市勘察设计研究院有限公司,北京100038 [2]北京市道路与市政管线地下病害工程技术研究中心,北京100038 [3]中国冶金地质总局地球物理勘察院,河北保定071051

出　　处：《工程勘察》2016年第12期70-74,共5页Geotechnical Investigation & Surveying

基　　金：北京市优秀人才培养基金

摘　　要：双侧单极—偶极电测深具有采集数据量大、横向分辨率高、抗干扰能力强、装置灵活等特点,而可控源音频大地电磁法(CSAMT)工作效率高、探测深度大、受地形影响相对较小、抗干扰性强、成本较低廉等特点。在北京某拟建高速公路隧道的地质勘察中,综合应用双侧单极—偶极电测深和CSAMT技术,发挥各自优势,有效地解决了不同深度的地质问题,查明了断层、破碎带的分布及覆盖层的厚度,为今后长大隧道勘察提供了一种新的综合物探技术。Bilateral pole-dipole electrical sounding has many advantages such as considerable data collection capacity,high lateral resolution,high exploration precision and high efficiency etc,while the controlled source audio frequency magnetolluric method（ CSAMT） has advantages of high efficiency,great penetration depth,small topographic effects,low cost. Bilateral pole-dipole electrical sounding system and CSAMT are applied in a long highway tunnel survey project in Beijing. The integrated geophysical prospecting methods displaying their advantages are employed to identify fracture zones,faults and the thickness of overburdens. The geophysical prospecting method could be referred by the future long highway tunnel survey works.

关 键 词：双侧单极—偶极电测深 CSAMT 综合物探 长大公路隧道 勘察 

分 类 号：P631.3[天文地球—地质矿产勘探]