基于跨孔CT和HDD的地下障碍物探测方法

发布时间：2018-05-27 10:39

本文选题：地下障碍物探测 + 跨孔地震波　；参考：《福州大学学报(自然科学版)》2017年02期

【摘要】：为克服跨孔地震波层析成像方法在非开挖区间内障碍物探测方面存在定位精度低、探测不准确等问题,提出一种基于跨孔地震波层析成像(CT)技术和水平定向钻进(HDD)技术的地下障碍物探测方法.首先采用HDD技术沿地下结构纵向方向钻孔并布设管道,而后在管内布设专用仪器,采用跨孔地震波CT技术对非开挖区间内障碍物进行定位和识别.为验证该方法的可行性,以一顶管施工的自来水干管为例,采用该方法探测施工路径地下障碍物分布情况.结果表明,该探测方法能够准确定位非开挖区间地下障碍物,探测精度高、准确性好,具有良好的应用前景.
[Abstract]:In order to overcome the problems of low positioning accuracy and inaccurate detection in the detection of obstacles in the excavated interval, the seismic wave tomography method of cross-hole is used to solve the problem. A method for detecting underground obstacles based on cross hole seismic wave tomography (CTT) and horizontal directional drilling (HDD) is presented. Firstly, the HDD technique is used to drill holes along the longitudinal direction of underground structure and to set up pipelines, then a special instrument is arranged in the pipe, and the cross-hole seismic wave CT technique is used to locate and identify the obstacles in the excavated zone. In order to verify the feasibility of this method, a pipe-jacking pipe is used as an example to detect the distribution of underground obstacles in the construction path. The results show that the method can accurately locate the underground obstacles in the excavation-free section, and has good accuracy and accuracy, and has a good prospect of application.
【作者单位】：福州市规划设计研究院;福建省地质灾害重点试验室;
【基金】：福建省科技厅科技计划资助项目(2015Y0044)
【分类号】：U455.43;U231.3

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