|
|
|
| Study on reasonable width of coal pillar and roadway support in fully mechanized caving face of thick coal seam |
| Zhang Xin |
| Shanxi Lu 'an Engineering Co., Ltd., Changzhi 046100, China |
|
|
|
|
Abstract In order to solve the problems of unreasonable coal pillar width and poor supporting effect in Changcun Mine, the optimal coal pillar width and supporting scheme were studied by means of numerical simulation, rock pressure monitoring and theoretical analysis, and industrial application test was carried out. The results showed that: When the width was greater than 30m, there was a stable elastic zone in the coal pillar, and the reasonable coal pillar width was 30m. The monitoring results showed that the optimized coal pillar size and support scheme could ensure the surrounding rock stability of No. 2106 track crossheading, and met the needs of the safe mining of the working face.
|
|
|
|
|
|
| [ 1 ] 高林生，邓广哲，索永录，等. 厚煤层综放工作面区段煤柱合理宽度优化研究[ J ]. 矿业研究与开发，2022，42（ 12 ）：1 - 6.
[ 2 ] 安文广. 薛虎沟矿1209综放工作面区段煤柱合理宽度研究[ J ]. 西部探矿工程，2022，34（ 9 ）：183 - 185.
[ 3 ] 牛滕冲. 综放工作面区段煤柱聚能失稳特征及合理尺寸研究[ D ]. 徐州：中国矿业大学，2022.
[ 4 ] 赵文涛. 马军峪煤矿90109综放工作面区段煤柱宽度优化研究[ J ]. 煤，2021，30（ 7 ）：82 - 84.
[ 5 ] 苏岳嵘. 深部倾斜厚煤层区段煤柱尺寸设计优化[ J ]. 江西煤炭科技，2023（ 2 ）：57 - 60.
[ 6 ] 杨志弘. 近距离下伏煤层区段煤柱合理尺寸优化方法研究[ J ]. 煤，2023，32（ 3 ）：26 - 30，39.
[ 7 ] 何少帅. 多重应力下小煤柱巷道矿压分析及治理研究[ J ]. 山西煤炭，2022，42（ 4 ）：10 - 15.
[ 8 ] 任建慧，王 帆，王 文. 厚煤层综放工作面区段煤柱内沿空掘巷小煤柱合理宽度研究[ J ]. 中国煤炭，2022，48（ S1 ）：275 - 282.
[ 9 ] 雷照源，李团结，崔 峰，等. 深部厚煤层动静载荷下区段煤柱损伤演化分析[ J ]. 西安科技大学学报，2022，42（ 1 ）：91 - 98.
[ 10 ] 张西寨，王文林. 厚煤层大倾角工作面煤体应力实测及煤柱合理宽度分析[ J ]. 煤矿安全，2020，51（ 10 ）：168 - 172. |
|
|
|
