地质雷达在大面积复杂岩溶场地勘察中的应用研究
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摘要
本文以西部山区某机场为例,通过与电法及地震勘探在地形、覆盖层厚度、场地平整度、岩性、探测速度、费用等方面的对比分析,系统地研究了地质雷达在大面积复杂岩溶场地勘察中运用的适宜性与经济性。通过在施工勘察中大规模运用,进一步表明地质雷达适宜于场地平整、覆盖层较薄、地层较单一地段的大面积复杂岩溶场地勘察,探测有效深度15m左右,最佳探测深度10～12m;不适宜于地形、地层和构造复杂、有深厚覆盖层及大深度区段的复杂岩溶场地的勘察。
This paper by taking an airport project in mountain area in west China as example,gives a systematic research about the appropriateness and economical efficiency of the application of geological radar in exploring large and complex karst area from the aspects such as surface feature,the thickness of covering layer,the flatness of the field,lithology,survey rate and the cost by comparing with electrical method and seismic method.It turns out that geological radar is appropriate for flat,shallow covering layer and simple strata area.The effective detect depth is about 15m,and the best detection depth is 10~12m.This method is not suitable for the karst area with complex surface feature,strata,geological structure and thick covering layer,or existing in the deep ground.
This paper by taking an airport project in mountain area in west China as example,gives a systematic research about the appropriateness and economical efficiency of the application of geological radar in exploring large and complex karst area from the aspects such as surface feature,the thickness of covering layer,the flatness of the field,lithology,survey rate and the cost by comparing with electrical method and seismic method.It turns out that geological radar is appropriate for flat,shallow covering layer and simple strata area.The effective detect depth is about 15m,and the best detection depth is 10~12m.This method is not suitable for the karst area with complex surface feature,strata,geological structure and thick covering layer,or existing in the deep ground.
引文
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[2]郭正言,刘长平.地质雷达在岩溶地区公路工程勘察中应用[J].公路,1999,(11):50～52.
[3]邢文宝.探地雷达技术在岩溶地质勘探中的应用[J].铁道建筑技术,2006,(2):63～65.
[4]苏智光,钱东宏等.浅谈地质雷达数据的精细处理[J].工程勘察,2012,40(7):84～88.
[5]王清玉,林洪辉等.探地雷达探测岩溶[J].岩土工程界,2002,(10):59～60.
[6]杨龙江等.探地雷达在隐伏岩溶区工程地质勘探中的应用[J].物探化探计算技术,1999,(2):172～176.
[7]练友红.地质雷达探测武隆隧道岩溶、暗河[J].矿业安全与环保,2003,(2):49～51.
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