School of Energy Science and Engineering.Henan Polytechnic University Whan Design and Research Insttute Company Limited,China Coal Technology and Engineering Group

为进一步改善爆破卸压预防冲击地压过程中卸压前后信息识别、提取困难及卸压效率低的现状,基于能量释放的电磁辐射原理,针对杨村煤矿冲击地压特点,结合该矿工程地质概况及爆破参数,阐述利用电磁辐射法对卸压爆破进行监测,通过现场试验与电磁辐射强度、脉冲数指标的监测分析,得出爆破卸压前后的电磁辐射规律及各指标变化规律。结果表明:电磁辐射指标尤其是强度指标可以有效反馈爆破卸压前后的弹性能变化规律,该指标对爆破卸压地点及爆破强度的确定具有指导作用,现场工程实践取得良好的检验效果。

in order to further improve the information identification and pick up difiulties before and afer the pressure released during the mine pressure bump prevention and control prcess with the basting pressure releasing and the status of the low pressure releasing effciency.based on the electromagnetic radiaton principe of the energy released,according to the mine pressure bump features of Yangcun Mine in combination with the mine engieeing geological contions and the blastiog parameters th eleceromagn etic radiaton method was appied to monior and measure the pressure released with the basting . With the sie est and the montoring and measuring on the electom agnetic radiaton strength and puise number i ndex,the electromagnetic radiation law and each index variation law tefore and after the blasting pressure released were obtained. The resutis showed tat the elecromagneic radiation index.especily th srengh index could efectvtly fed back the varaton law of the elastic energy before and aftr the blasting pressure relea sed and the index could have the guidance function to set up the blasting pressure released location and the blasting strength.The site engineering practices obtained excellent inspection effect.

国家自然科学基金煤炭联合基金重点资助项目(U1261207)；河南理工大学青年基金资助项目(72511/119)；