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机构地区:[1]黑龙江科技大学,黑龙江省煤矿深部开采地压控制与瓦斯治理重点实验室,黑龙江哈尔滨150022 [2]龙田煤业有限公司,河南辉县453600 [3]黑龙江龙煤鸡西矿业公司梨树煤矿计划科,黑龙江鸡西158160
出 处:《煤矿开采》2017年第3期84-88,共5页Coal Mining Technology
基 金:国家自然科学基金项目(51574115,51374097,51604100);黑龙江省煤矿深部开采地压控制与瓦斯治理重点实验室开放课题(基于声发射表征组合煤岩体冲击倾向研究)
摘 要:为掌握梨树矿右三高抽巷推进过程中岩体所释放的能量、频次和冲击危险性,分析了该巷道的地音数据。研究结果表明:梨树矿右三高抽巷岩体能量释放呈现"高能-低能-高能-低能-高能"的特点,频率呈现"低频-高频-高频-高频-低频"的特点。从声发射事件、能量和事件的平均能量可知,距离工作面80m区域之内,相对安全。距离工作面80~170m范围之内,相对较危险。距离工作面170~210m区域,相对危险。通过分析1月2日~8日数据可知,可以提前4~5d预测危险的来临,采取相应的措施,解除危险。In order to obtain relaxed energy, frequency and outburst hazard of rock mass during advancing process of right three highlevel drainage tunnel in Lishu coal mine, the ground sonic data of the tunnel was analyzed. The results showed that energy relaxationcharacter appeared as ‘high energy-low energy-high energy-low energy-high energy’, frequency character like as’ low frequency -highfrequency -high frequency-high frequency-low frequency’, according acoustic emission event, energy and average energy, the areawithin 80m to working face was relative safety, the scope80-170m to working face was relative dangerous, the scope 170-210m toworking face was relative dangerous, according data that collected from January 2ndto 8th, the hazard could be forecast 4-5days in ad-vance, then some schemes could be put forward, and hazard could be relaxed.
关 键 词:ARES-5/E地音系统 高抽巷 地应力
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