Micro-motion technology is increasingly widely used in urban underground space detection due to its advantages of convenient construction,non-destructive and strong anti-interference ability.Howev-er,the urban environment is complex and ever-changing,and the site does not usually satisfy various types of observation methods,requiring experimental research.This paper introduces experimental re-search on micro-motion observation methods conducted above an old air-raid shelter in Zhengzhou.The experimental results show that when the site conditions are limited,the linear micro-motion measurement line can basically achieve the same application effect as the multi circle array observation method,and the greater the angle between the direction of linear survey lines and the direction of the target body,the better the detection effect.After drilling verification,the micro-motion interpretation results are basically consistent with the drilling results.
NETL
NSTL
万方数据
