中国煤炭
中國煤炭
중국매탄
CHINA COAL
2014年
9期
45-48
,共4页
巷道支护%巷道变形%泥化软岩%软岩巷道%变形机理
巷道支護%巷道變形%泥化軟巖%軟巖巷道%變形機理
항도지호%항도변형%니화연암%연암항도%변형궤리
roadway support%roadway deformation%clay soft rock%roadway with soft rock%deformation mechanism
针对新上海一号煤矿矿区低强度泥化软岩遇水弱化、体积膨胀特点,对巷道的变形机理及支护技术进行了优化。通过室内试验,得到了不同于其他软岩的物理力学特性;在此基础上,对巷道围岩变形及应力进行现场实测及数值模拟,分析了巷道的变形机理,并对其支护技术进行了优化;对采用新支护方案的巷道进行了监测,结果表明,新方案可有效改善围岩应力状态,控制围岩变形。本研究在低强度泥化软岩巷道支护技术上取得显著的效果,具有较高的实用价值。
針對新上海一號煤礦礦區低彊度泥化軟巖遇水弱化、體積膨脹特點,對巷道的變形機理及支護技術進行瞭優化。通過室內試驗,得到瞭不同于其他軟巖的物理力學特性;在此基礎上,對巷道圍巖變形及應力進行現場實測及數值模擬,分析瞭巷道的變形機理,併對其支護技術進行瞭優化;對採用新支護方案的巷道進行瞭鑑測,結果錶明,新方案可有效改善圍巖應力狀態,控製圍巖變形。本研究在低彊度泥化軟巖巷道支護技術上取得顯著的效果,具有較高的實用價值。
침대신상해일호매광광구저강도니화연암우수약화、체적팽창특점,대항도적변형궤리급지호기술진행료우화。통과실내시험,득도료불동우기타연암적물리역학특성;재차기출상,대항도위암변형급응력진행현장실측급수치모의,분석료항도적변형궤리,병대기지호기술진행료우화;대채용신지호방안적항도진행료감측,결과표명,신방안가유효개선위암응력상태,공제위암변형。본연구재저강도니화연암항도지호기술상취득현저적효과,구유교고적실용개치。
In view of the low-intensity clay soft rock weakening and volume expanding as meeting water in New Shanghai No.1 Coal Mine,the roadway deformation mechanism and sup-porting technology are optimized.Through indoor test,the physical and mechanical properties differing from other soft rocks are obtained;on this basis,the site measurement and numerical simulation are applied on the roadway deformation and stress,and the deformation mechanism is analyzed,and the supporting technology for it is optimized;the roadway adopting the new sup-porting scheme is monitored.The results show that the new scheme can effectively improve the stress state of surrounding rock and control the deformation of it.This research makes significant effects on supporting technology for roadway with low-intensity clay soft rock and owns high practical value.