TEM-Based Rapid Detection Technology of Metal Mined—out Area——Take a Bauxite Mining Area in Western Henan Province as an Example
Our country is rich in mineral resources,after a long period of resources and ener-gy development,a lot of underground mining mines have been formed.With the continuous exploitation of mineral resources,the mined-out area formed by the underground mining mountain has gradually increased,and has slowly produced security risks such as instability of the mined-out area and water inrush,which has brought serious damage to the mine and the surrounding ecological environment.In order to reduce and prevent geological disasters caused by underground goaf and protect people's life and property safety to the maximum extent,the investigation and detection of mine goaf is very important.In this paper,the field construction process and the key points of parameter selection for gob detection by time domain electromagnetic method(Time Domain Electromagnetic Method)in a bauxite mining area in western Henan province are described.By using this method,the water in gob is quickly delimited and good results are obtained.The mined-out area of the mining area is mainly located in the east of the mining area,with an area of about 510 000 m2,while there is no water accumulation in the western and southern areas of the mining area.It is conclu-ded that the field test procedure of this method is correct,and the magnetic source transient electromagnetic method is effective for the detection of metal mine gob.The application of this method in the field of gob detection provides technical support for effectively avoiding safety accidents in the underground mining process in the future.
magnetic source TEMgoafwestern area of Henan provincebauxite
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