摘要
采空区的存在对煤矿区生产、人民财产安全和工程建设造成极大的安全隐患。有效的探测采空区成为解决上述问题的关键。本文从采空区地球物理特征入手,分析浅层地震法、探地雷达法和可控源音频大地电磁测深法对采空区的探测原理。浅层地震法可以连续测量,查明埋深较大目标体;探地雷达法对浅层目标体探测精度高、效率高而且对目标体无损害;可控源音频大地探测法对于采空区积水探测效果极佳,探测深度也比较大。文章通过工程实例证明了三种方法可以有效地实现对采空区的探测,并且每种方法各有优缺点,为进行煤矿采空区的探测提供一定的借鉴经验。
The paper based on the geophysical characters of the mined - out areas analyzes the principles of the three geophysical techniques which contain crosswell seismic, ground penetrating radar（GRP） and TEM. The method of crosswell seismic can be continuously measured to detect deep object, and the technique of ground penetrating radar is widely applied for it has high resolution, high efficiency and is good for the target body . TEM is an old and useful method to detect mined -out areas which are rich in water and can be also applied to the deep object. It has been proofed that they are valid in detecting mined - out areas.
出处
《工程地球物理学报》
2009年第6期728-732,共5页
Chinese Journal of Engineering Geophysics
基金
国家重大专项(编号:2008ZX05035)资助
