湖南科技大学学报(自然科学版)
湖南科技大學學報(自然科學版)
호남과기대학학보(자연과학판)
JOURNAL OF HUNAN UNIVERSITY OF SCIENCE & TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
2期
6-13
,共8页
郭晓强%窦林名%曹安业%唐绍辉%文兴
郭曉彊%竇林名%曹安業%唐紹輝%文興
곽효강%두림명%조안업%당소휘%문흥
临空区%冲击矿压防治%动静载%数值模拟%矿震
臨空區%遲擊礦壓防治%動靜載%數值模擬%礦震
림공구%충격광압방치%동정재%수치모의%광진
near the goaf%rock burst prevention%dynamic and static load%numerical simulation%mining-induced seismic
为提前预防临近采空区侧回采巷道发生的冲击矿压灾害,基于临空区回采巷道冲击破坏机理,提出了降低静载以避开支承应力集中区为原则、削弱动载以增大传播介质衰减指数为原则的临空区巷道优化布置方式,建立了力学模型,理论计算了外错布置的布置参数,并通过数值模拟方法对其进行验证,对比分析了2种不同布置方式的所受动静载情况。结果表明:采用外错布置方式后围岩稳定性好、抗矿震扰动能力强,结合现场工程实践,采用外错布置技术取得了明显有效的防冲效果,实证了其在冲击矿压防治方面的突出性。
為提前預防臨近採空區側迴採巷道髮生的遲擊礦壓災害,基于臨空區迴採巷道遲擊破壞機理,提齣瞭降低靜載以避開支承應力集中區為原則、削弱動載以增大傳播介質衰減指數為原則的臨空區巷道優化佈置方式,建立瞭力學模型,理論計算瞭外錯佈置的佈置參數,併通過數值模擬方法對其進行驗證,對比分析瞭2種不同佈置方式的所受動靜載情況。結果錶明:採用外錯佈置方式後圍巖穩定性好、抗礦震擾動能力彊,結閤現場工程實踐,採用外錯佈置技術取得瞭明顯有效的防遲效果,實證瞭其在遲擊礦壓防治方麵的突齣性。
위제전예방림근채공구측회채항도발생적충격광압재해,기우림공구회채항도충격파배궤리,제출료강저정재이피개지승응력집중구위원칙、삭약동재이증대전파개질쇠감지수위원칙적림공구항도우화포치방식,건립료역학모형,이론계산료외착포치적포치삼수,병통과수치모의방법대기진행험증,대비분석료2충불동포치방식적소수동정재정황。결과표명:채용외착포치방식후위암은정성호、항광진우동능력강,결합현장공정실천,채용외착포치기술취득료명현유효적방충효과,실증료기재충격광압방치방면적돌출성。
In order to prevent rock burst hazard of roadway near the goaf in advance,the optimized layout mode of roadway near the goaf was purposed,to reduce static load of avoiding concentration area of bearing stress,and to weak dynamic load of increasing attenuation coefficient of the propagation medium,based on the mechanism of rock burst failure for roadway near the goaf.Mechanic model was built to calculate the layout.And with the numerical simulation method, the parameter was proved. The result show that stability of the surrounding rock and the ability of disturbance rejection with the roadway by lateral layout mode are enhanced. Then based on site practice,the technology is achieved obviously effect and the prominence to prevent rock burst is proved.