延迟时法地震折射波勘探在某高速公路深挖段风化层探测中的应用  

Application of Delay Time Method Seismic Refraction Wave Prospecting in the Exploration of Weathered Layer in a Deep Section of Highway

作　　者：赵祥 王萍 黄勇[1] 张宏兵[1] Zhao Xiang;Wang Ping;Huang Yong;Zhang Hongbing(College of Earth Science and Engineering, Hohai University, Nanjing Jiangsu 211100, China)

机构地区：[1]河海大学地球科学与工程学院,江苏南京211100

出　　处：《工程地球物理学报》2021年第4期421-427,共7页Chinese Journal of Engineering Geophysics

基　　金：中央高校基本科研业务费专项(编号:B200203113);江苏省研究生科研与实践创新计划项目(编号:KYCX20_0492)。

摘　　要：浅层折射波勘探是工程地质勘查中广泛应用的地震勘探手段之一,可以为设计部门提供有效的地质参数。文中详细介绍了延迟时成果解释法,利用该方法解译折射波数据,能精确地探明各风化层厚度和风化界面起伏形态,并将地震折射波应用在某高速公路深挖段勘探中。将解译的成果与钻探结果相比较,延迟时地震折射波勘探方法能达到预期的精度要求,减少了工程成本,提高了工作效率。Shallow refraction wave prospecting is one of the widely usedseismic exploration methods in engineering geological exploration,which can provide effective geological parameters for the design departments.In this paper,the interpretation method of delaytime is introduced in detail to interpret the refraction wave data,to accurately prove the thickness of each weathered layer and the undulations of weathering interface.The seismic refraction wave is applied tothe exploration of deep excavation sections of a highway,comparedthe engineering examples with the drilling results,the seismic refraction wave prospecting method can reach the expected accuracy requirements when the delay occurs,reducing the engineering cost and improving the work efficiency.

关 键 词：延迟时 折射波勘探 高速公路 风化层 

分 类 号：P631.4[天文地球—地质矿产勘探]