微动探测技术在城市隐伏断层探测中的应用研究

Application of Micro Motion Detection Technology in Urban Concealed Fault Detection

指出了微动勘探方法具有抗干扰能力强的特点,在城市地质调查等应用较广。阐述了微动勘探方法原理、主要工作流程和技术优势等,重点分析了该方法在上海城区复杂地电和振动等强烈干扰环境下的应用,结果表明:在第四系地层结构分层及划分、隐伏断层探测、深部物性界面的获取和刻画地下三维速度结构等方面均取得了较好的效果,是一种特别适合城市地区活动断裂探测和地下空间地质调查的物探方法,能够为类似城市地质调查、地下空间开发利用等提供新的思路。

Micro motion exploration method has the characteristics of strong anti-interference ability and is widely used in urban geological survey.Firstly,this paper expounds the principle,main work flow and technical advantages of micro motion exploration method,and focuses on the application of this method in the strong interference environment such as complex geo-electricity and vibration in Shanghai urban area.It has achieved good results in the stratification and division of Quaternary stratigraphic structure,the detection of hidden faults,the acquisition of deep physical property interface and the characterization of underground three-dimensional velocity structures.It is a geophysical prospecting method especially suitable for active fault detection and underground space geological survey in urban areas.It can provide new ideas for similar urban geological survey and underground space development and utilization.