Underground pressure appearance laws analysis for fully mechanized top coal slice caving on high-dipping thick coal seams
Underground pressure appearance laws analysis for fully mechanized top coal slice caving on high-dipping thick coal seams
复制标题
高倾角厚煤层综放放顶煤井下压力显现规律分析
DOI：
10.1007/s12404-011-0102-8
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发表时间：
2011-03
期刊：
影响因子：
--
通讯作者：
Li Fu-sheng
中科院分区：
文献类型：
--
作者：
Yang Sheng-li;Cao Guang-ming;Li Fu-sheng
以阿道海煤矿为例，研究了大倾角厚煤层综放开采矿压显现规律。通过现场考察、理论分析和离散元计算，研究表明，在接近顶煤的区域，随着开采深度的加深，下分段地应力明显大于上分段地应力，回风巷道地应力高于进风巷道。由于顶煤厚，支架上方有煤矸石冒落，工作面的矿压相对较小。直接顶板将主要沿底板坍塌。老顶和老顶上方的岩层早期会沿断层运移到采空区，后期随采空区一起坍塌。另外，顶板压力主要沿走向和倾角两个方向周期性地出现。
Taking Adaohai Coal Mine as the example, underground pressure appearance laws of fully mechanized top coal slice caving on high-dipping and thick coal seams. Through site visit, theoretical analysis and discrete element calculation, the research shows that, as the mining deepens, underground stress of lower sublevels is more obvious and higher than that of upper sublevels and is higher in the air return roadway than that in the air intake roadway in the area that is near to the top coal. Because the top coal is thick and gangue is caved above the support, underground pressure to the working face is relatively gentle. Immediate roof will mainly fall down along the floor. Main roof and the rock bed above the main roof will move to the mined out area along the fault in the early stage and then fall down with the mined out area later. In addition, roof pressure mainly periodically appears in two directions along the trend and the dip.
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DOI：
--
发表时间：
2009
期刊：
Mechanical Management and Development
影响因子：
--
作者：
Z. Qin
通讯作者：
Z. Qin
DOI：
--
发表时间：
2004
期刊：
Ground Pressure and Strata Control
影响因子：
--
作者：
Q. Tao
通讯作者：
Q. Tao
DOI：
--
发表时间：
2006
期刊：
Coal science and technology
影响因子：
--
作者：
Yang Xi-cai
通讯作者：
Yang Xi-cai
DOI：
--
发表时间：
2004
期刊：
Journal of China Coal Society
影响因子：
--
作者：
Shi Ping-wu;Q. Tao;Zhang Jia-fan;Wang Shuan-cun;Tian Ying-nan
通讯作者：
Shi Ping-wu;Q. Tao;Zhang Jia-fan;Wang Shuan-cun;Tian Ying-nan
DOI：
--
发表时间：
2007
期刊：
Coal Technology
影响因子：
--
作者：
Wang Hong-lin
通讯作者：
Wang Hong-lin