防水闸墙隐患探地雷达探测分析

Analysis of Detecting Potential Risk of Water Proof Gate Using Ground Penetrating Radar

对于受水害威胁的矿井,防水闸墙是井下防水的主要安全设施.防水闸墙由于选址不合理、施工质量存在缺陷等原因而引起失效,将严重威胁到矿井的安全.利用探地雷达技术可探测出防水闸墙硐室混凝土及其围岩的缺陷类型与规模,便于及早采取防范措施、进行加固处理.本文介绍了探地雷达的基本原理和探测方法;给出了探地雷达的数据采集和处理方法;以南冶煤矿015防水闸墙为例,分析了探地雷达的图象特征,据此为防水闸墙及其围岩的缺陷确定提供了依据.

The water proof gate is the main safety facility against underground water to the coal mine threatened by water disaster.The invalidation,caused by irrational address,existing construction quality defects,etc,of water proof gate will seriously threat the safety production of coal mines.The type and scale of potential risk in the water proof gate and surrounding rock can be obtained using the technology of ground penetrating radar.It is convenient to take the prevention measure and reinforcement in time based on the detection results.The principle and detection methods of the technology of ground penetrating radar are introduced in this paper and the methods of its data collection and disposition are also represented.Finally,as an example,the characteristics of ground penetrating radar images are analyzed based on the detection results of No.015 water proof gate of Nanye coal mine.So,it provides a basis to determine the defect of water proof gate and surrounding rock.