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Application of combined pressure relief support technology in Xiadian Gold Mine

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  • Zhaojin Mining Industry Co.,Ltd.|Chongqing Research Institute of China Coal Technology & Engineering Group Corporation|Zhaojin Mining Industry Co.,Ltd.|Zhaojin Mining Industry Co.,Ltd.|Zhaojin Mining Industry Co.,Ltd.
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Abstract:

Based on the fragile geologic conditions in the extraction roadway of Xiadian Gold Mine,the paper analyzes the features of roadway damage,and with the help pressure relief support mechanism analysis,comes up with the support scheme combining pressure relief and FRP bolt reinforcement,and decides the pressure relief manner for drilling of both side walls of the extraction roadway as well as roof grooving,and the parameters for FRP bolt support.Industrial test shows that the combined pressure relief technology has achieved satisfactory support performance.The support manner can be used as reference by roadways with similar soft and fragile geologic conditions.

Keywords:

soft rock roadway;pressure relief support;FRP bolt;ground pressure control;extraction roadway