山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2015年
8期
162-164
,共3页
覆岩运动规律%裂隙带高度%台阶下沉%切顶冒落%剪切破坏
覆巖運動規律%裂隙帶高度%檯階下沉%切頂冒落%剪切破壞
복암운동규률%렬극대고도%태계하침%절정모락%전절파배
movement rule of overlying strata%height of fracture zone%step subsidence%cutting top caving%shear failure
为确保伊犁一矿试采区安全回采及工作面顶板支护管理方式的正确选择，对其覆岩运动破坏规律进行研究。利用UDEC离散元软件进行煤层开挖数值模拟，分析煤层开挖过程中上覆岩层的运动破坏规律、顶板裂隙带高度发育规律，得出随裂隙带高度随工作面推进而增大，且当工作面推进一定距离时覆岩顶板出现台阶下沉和切顶冒落现象。研究成果为矿井顶板支护管理和安全生产提供了科学理论依据。
為確保伊犛一礦試採區安全迴採及工作麵頂闆支護管理方式的正確選擇，對其覆巖運動破壞規律進行研究。利用UDEC離散元軟件進行煤層開挖數值模擬，分析煤層開挖過程中上覆巖層的運動破壞規律、頂闆裂隙帶高度髮育規律，得齣隨裂隙帶高度隨工作麵推進而增大，且噹工作麵推進一定距離時覆巖頂闆齣現檯階下沉和切頂冒落現象。研究成果為礦井頂闆支護管理和安全生產提供瞭科學理論依據。
위학보이리일광시채구안전회채급공작면정판지호관리방식적정학선택，대기복암운동파배규률진행연구。이용UDEC리산원연건진행매층개알수치모의，분석매층개알과정중상복암층적운동파배규률、정판렬극대고도발육규률，득출수렬극대고도수공작면추진이증대，차당공작면추진일정거리시복암정판출현태계하침화절정모락현상。연구성과위광정정판지호관리화안전생산제공료과학이론의거。
To ensure that the safety mining and correct choice of roof support management of the test mining area of Yili NO.1 coal mine, studies the overlying strata movement and failure pattern. Using the UDEC discrete element software to carry on the numerical simulation of coal seam excavation, analyses the movement rule of overlying strata and height growth law of the roof fracture zone during the excavation process, and come to the conclusion that the height of fracture zone increases with the advancement of working face, and when the working face advancing a certain distance, overlying roof rock appears the phenomenon: step subsidence and cutting top caving. The research results provide a scientific theoretical basis for the management of roof nursing and security production of the coal mine.
