微动技术在城市老旧防空洞探测中的应用

Application of Micro-motion Technology in Detection of Urban Old Air-raid Shelter

微动技术因其施工便捷、无损、抗干扰能力强等优势,在城市地下空间探测中应用越来越广泛。但是,城市环境复杂多变,场地往往不能满足多种类型的观测方式,需要对其进行试验研究。该文介绍了在郑州某老旧防空洞上方,开展微动观测方式试验研究。试验成果表明,在场地条件受限时,直线型微动测线基本可以实现与多重圆型台阵观测方式一样的应用效果;直线型测线布设方向与目标体走向夹角越大,探测效果越好。经钻孔验证,微动解译成果与钻孔结果基本一致。

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.However,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 research 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.