瑞雷面波在地下空洞探测中的应用  

Application of Rayleigh Wave Method in Detecting Underground Cave

作　　者：崔竹刚[1] 贾雷[2] 郑晓燕[2] 田小甫[2] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津300251 [2]北京市地质工程勘察院,北京100048

出　　处：《科学技术与工程》2012年第26期6750-6753,共4页Science Technology and Engineering

摘　　要：在公路建设、民用建筑改造过程中,地下空洞是工程安全的潜在威胁。弄清地下空洞、洞穴的分布情况是工程进行设计施工前需要解决的重要问题之一。而选择合适的探测方法则对勘察结果的准确程度有着重要的影响。瑞雷波检测的物理基础是瑞雷波传播速度VR与岩土体物理力学性质的密切相关性和VR与频率f的相关性,即瑞雷波的频散特性。与常规物探方法相比较,瑞雷波勘探具有分辨率高、应用范围广、受场地影响小、检测设备简单、检测速度快等优点,能够胜任大面积地下空洞的检测。从理论和方法上介绍了利用瑞雷波检测地下空洞的可行性,并应用这种方法对北京某库房建设工程场地进行了地下空洞检测。检测结果表明瑞雷面波方法探测结果准确可靠,操作简便易行,拥有广阔的应用前景。During road construction and building transformation, one of the most important problems is to clarify the distribution of the underground cave which is a potential threat to the project safety. Furthermore, selecting an appropriate detection method has an important impact on accuracy of survey results. Rayleigh wave phase velocity VR can reveal the physical and mechanical properties of rock or soil mass at a certain depth. Compared to tradi- tional test methods, the Rayl eigh wave test has many advantages such as fine resolution, simple apparatus and high testing speed. The feasibility and approach of Rayleigh Wave to the inspection on the underground cave theo- retically and practically are presented. What is also displayed is the application effect of this method in the inspec- tion on underground cave in-site of a storehouse project in Beijing. The detecting results show that this method is accurate and simple. Therefore, the method has a broad prospect in application.

关 键 词：瑞雷面波 地下空洞 瑞雷波相速度 

分 类 号：P631.414[天文地球—地质矿产勘探]