山区带状交通工程物探技术研究及应用  

Geophysical Exploration Technology for Mountain Strip Traffic Engineering

作　　者：李芳凝[1] 刘志清[2] 王思锴 马海志[1] 李添才 赵振国[2] 王晨涛[2] 肖西卫[2] LI Fangning;LIU Zhiqing;WANG Sikai;MA Haizhi;LI Tiancai;ZHAO Zhenguo;WANG Chentao;XIAO Xiwei(Beijing Urban Construction Exploration&Surveying Design Research Institute Co.,Ltd.,Beijing 100101,China;CCCC Highway Consultants Co.,Ltd.,Beijing 100010,China)

机构地区：[1]北京城建勘测设计研究院有限责任公司,北京100101 [2]中交公路规划设计院有限公司,北京100010

出　　处：《施工技术（中英文）》2023年第1期17-25,共9页Construction Technology

基　　金：北京城建勘测院企业科技研发计划:综合物探手段在轨道交通勘察中探查复杂地质情况的应用研究。

摘　　要：山区带状交通工程物探通常面临崎岖地形、高山峡谷、飞水暗河、植被茂盛、陡倾地层等复杂地理环境和地质构造影响。当前,针对山区的物探方法手段单一、技术思路不开阔、数据信息严重不足,存在勘察盲区,尚未形成技术体系,难以有效提导钻探,存在重大地质风险,严重影响后续勘察设计和工程造价。以崎岖山岭DGT深埋长隧道紧邻断裂带和高山峡谷BFSH深埋特长隧道穿越地热发育区勘察项目为依托,运用大数据思维,对近几年涌现出来的航空物探、广域频电磁法、地震微动以及井中物探等新技术进行系统研究,试验攻关综合物探技术在山区勘察的有效性,揭示复杂地形地质条件下工程物探面临的问题并提出针对性措施,综合利用遥感、地质、钻探、试验等勘察技术,建立了“空天地”+“工可-初勘-详勘”多场源一体化勘察模式,形成了数据量大、属性要素全面、动态的勘察大数据,准确识别了断裂带、地热性质、围岩质量和岩土分界面,为优化线路和钻探选位打下良好的基础。通过案例研究,认为运用大数据思维可以提高山区工程勘察设计水平,采用综合技术可以提高地质参数的准确性。The geophysical prospecting of strip traffic engineering in mountainous areas is usually affected by complex geographical environment and geological structure,such as rugged terrain,high mountain canyon,waterfall and underground river,lush vegetation and steep strata.Currently,the geophysical exploration methods for mountainous areas are single,the technical ideas are not extensive enough,and the data information is seriously insufficient.There are blind spots in the survey,and the technical system has not yet been formed.It is difficult to effectively guide drilling,and there are major geological risks,which seriously affect the follow-up survey design and project cost.Based on the investigation project of DGT deep-buried long tunnel in rugged mountains adjacent to fault zone and BFSH deep-buried super-long tunnel in alpine canyon crossing geothermal development area,the new technologies such as airborne geophysical exploration,wide-area frequency electromagnetic method,seismic micro-motion and borehole geophysical exploration emerging in recent years are systematically studied by using big data thinking.The effectiveness of comprehensive geophysical exploration technology in mountainous area investigation is tested,the problems faced by engineering geophysical exploration under complex topographic and geological conditions are revealed,and targeted measures are put forward.The investigation technologies such as remote sensing,geology,drilling and test are comprehensively utilized.A multi-source integrated survey mode of“aerospace-earth”+“engineering feasibility study report-preliminary exploration-detailed exploration”was established,and the big survey data which are characterized by large volume,comprehensiveness and dynamic property elements were formed.The fault zone,geothermal properties,surrounding rock quality and geotechnical interface were accurately identified,which has laid a good foundation for optimizing the route and drilling location.The study of these cases proves that the use of big data

关 键 词：山区带状交通工程 深埋特长隧道 断裂带 地热发育区 大数据 综合物探 

分 类 号：P631[天文地球—地质矿产勘探]