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微地震定位监测的深孔检波器及其安装技术
Deep hole geophones and installing techniques used in microseismic monitoring underground
【摘要】 介绍了在煤矿井下采用微地震定位监测技术监测岩体破裂的原理和开发研制的两种检波器及其安装方法。“液压安装法”适用于钻孔深度在50m以内的中硬及硬岩层,且检波器可以回收复用;“药包安装法”适用于软弱的岩层和深度50~100m的钻孔。该监测技术在现场得到试验验证并开始在工程中加以应用。
【Abstract】 Two kinds of geophones and their installing techniques used in microseismic monitoring underground coal mines were introduced. The method of installation with hydraulic expander can be used in middle hard and hard strata while the depth of drilling holes should be less than 50 m and geophones can be recycled. The method of installation with cement pouch can be used in soft strata and the depth of drilling holes can reach 50—100m. These geophones and their installing techniques were investigated by field tests and have successfully applied in underground coal mines.
【关键词】 微地震监测;
检波器;
安装技术;
岩体破裂;
煤矿;
矿山压力;
【Key words】 microseismic monitoring; geophone; installing technique; rock mass fracturing; coal mine; mining pressure;
【Key words】 microseismic monitoring; geophone; installing technique; rock mass fracturing; coal mine; mining pressure;
【基金】 国家自然科学基金重大国际合作基金(No.50320120001)面上基金(No.50074021)
- 【文献出处】 北京科技大学学报 ,Journal of University of Science and Technology Beijing , 编辑部邮箱 ,2006年01期
- 【分类号】TD326
- 【被引频次】20
- 【下载频次】585