堤坝隐患的天然源面波成像试验研究及应用  

Natural Source Surface Wave Imaging on the Hidden Trouble of Dikes and Dams

作　　者：潘纪顺[1] 高东攀 冷元宝[2] 李传金[1] 吕芝全[1] 朱四新[1] 朱瑞[1] 赵详[1] 

机构地区：[1]华北水利水电大学,河南郑州450045 [2]黄河水利科学研究院,河南郑州450003

出　　处：《资源环境与工程》2016年第3期306-310,共5页Resources Environment & Engineering

基　　金：国家自然科学基金(41174052);河南省基础与前沿技术研究计划项目(112300410252)

摘　　要：诸如空洞、软弱层、渗漏、裂缝等病害严重威胁堤坝的安全,因此,堤坝隐患的探测具有重要的现实意义。当前应用到堤坝隐患探测的物理方法主要有直流电法、电磁法、弹性波法、放射性法和流场法等,而这些方法都是有源的,或者向地下供电,或者发射电磁波,或者产生地震波。而天然源面波探测是无源的,它利用地球表面无时不刻存在的微弱震动,从里边提取面波信息,通过对面波频散曲线进一步反演,可以获得地下介质速度结构。通过黄河大堤隐患原型试验和长江大堤的实际探测,表明该技术对探测诸如软弱层等隐患有一定的效果和实际应用价值。The troubles such as caves, weak layer,leakage and cracks threaten the safety of dikes and dams. So it is important to detect the troubles. Nowadays the geophysical method used in detection of the troubles including DC electrical method, electromagnetic method, elastic wave method, radioactive method and flow fluid method. All these methods are active ,some need supply electric current, some need eject electromagnetic wave, the other need create seismic wave. However passive surface is passive. The passive surface method gets the surface wave from the microtremor which exists on the earth surface all the time. The subsurface velocity structure will be obtained by inverting the wave dispersive curve. Both Yellow River dam trouble prototype test and the practical detections in the Yangtze River dam prove the passive surface method is effective to detect the weak layer trouble and it has some practical application value.

关 键 词：天然源 面波 堤坝隐患 黄河原型试验 长江大堤 

分 类 号：TV871[水利工程—水利水电工程]