散射波成像技术在地铁空洞探测中的应用

Application of Seismic Scattering Wave Imaging Technique in Metro Cavity Detection

城市地铁工程快速发展,以空洞为主的不良地质体诱发的地面塌陷事故层出不穷。传统的地震反射波法无法满足高精度探测小尺度、不均匀复杂地质体和城市施工空间受限的要求。在考虑散射波成像方法需求以及城市施工环境限制的情况,设计快速可移动城市散射波观测系统,将等效偏移距(EOM)散射成像技术应用于地铁空洞探测中,取得较好效果。

With the rapid development of city underground project,bad geological body induced by the cavity collapse accidents emerge in an endless stream. The traditional seismic reflection wave method can not to solve the high precision detection of the small scale or complex geological body and city construction space limited.The paper considering the scattering wave imaging method and city construction constraints,to design the rapid city scattering wave observation system,the equivalent offset（ EOM） application of scattering imaging technology in subway hole exploration,has achieved good effect.