基于探地雷达的煤岩界面探测数据解释方法

苗曙光; 刘晓文; 李淮江; 王昕

doi:10.13272/j.issn.1671-251x.17361

基于探地雷达的煤岩界面探测数据解释方法

doi: 10.13272/j.issn.1671-251x.17361

苗曙光^{1, 2, 3},
刘晓文^{1, 3},
李淮江^{1, 2, 3},
王昕^{1, 3}

1.
中国矿业大学信息与控制工程学院，江苏徐州221116
2.
淮北师范大学物理与电子信息学院，安徽淮北235000
3.
中国矿业大学物联网(感知矿山)研究中心，江苏徐州 221116

基金项目:

国家重点研发计划资助项目（2017YFC0804400）

国家重点基础研究发展计划(973计划)资助项目(2014CB046305)

安徽省第七批“115”产业创新团队项目（皖人才〔2014〕4号）

淮北市第三批“555”产业创新团队项目（淮人才字〔2013〕2号）

详细信息

中图分类号: TD67
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- 被引次数: 0
出版历程
- 刊出日期: 2019-01-10

Data interpretation method of coal-rock interface detection based on ground penetrating radar

MIAO Shuguang^{1, 2, 3},
LIU Xiaowen^{1, 3},
LI Huaijiang^{1, 2, 3},
WANG Xin^{1, 3}

1.
School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China
2.
School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China
3.
Internet of Things (Perception Mine) Research Center, China University of Mining and Technology, Xuzhou 221116, China

摘要

摘要: 针对现有煤岩界面识别方法缺乏对煤岩层特性的研究、无法对数据进行较好解释的问题，结合基于探地雷达的煤岩界面探测模型，提出了一种煤岩界面探测数据解释方法，即采用一种改进的最大类间方差法，在二维灰度直方图下对探地雷达探测的煤岩图像进行阈值化分割，从而实现煤岩界面识别。通过仿真实验研究了探地雷达天线频率对可探测煤层厚度的影响，结果表明随着天线频率增大，理论可探测最大煤层厚度减小；采用LTD-2100型探地雷达，设置400 MHz天线频率进行现场测试，结果表明基于探地雷达的煤岩界面探测数据解释方法可提高煤岩界面识别准确性。
- 煤炭开采 /
- 无人工作面 /
- 煤岩界面识别 /
- 煤岩界面探测 /
- 探地雷达 /
- 数据解释 /
- 图像分割 /
- 最大类间方差法
Abstract: For problems that existing coal-rock interface identification methods lacked research on characteristics of coal-rock seam and were unable to interpret data well, a data interpretation method of coal-rock interface detection was proposed combining with coal-rock interface detection model based on ground penetrating radar (GPR). The method uses an improved OTSU to take out threshold segmentation of coal-rock image from GPR under 2D gray histogram, so as to realize coal-rock interface detection. Influence of GPR antenna frequency on detectable coal seam thickness was researched by simulation experiment. The results show that the maximum detectable coal seam thickness in theory would decrease with increase of antenna frequency. Field test was taken out by use of LTD-2100 type GPR with 400 MHz antenna frequency. The test results show that the data interpretation method of coal-rock interface detection based on GPR can improve accuracy of coal-rock interface identification.
- coal mining /
- unmanned working face /
- coal-rock interface identification /
- coal-rock interface detection /
- ground penetrating radar /
- data interpretation /
- image segmentation /
- OTSU