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| 煤柱宽度对综放工作面巷道位移的影响规律 | |
| 引用本文： | 谢广祥,王磊,常聚才. 煤柱宽度对综放工作面巷道位移的影响规律[J]. 煤炭科学技术, 2008, 36(12) |
| 作者姓名： | 谢广祥 王磊 常聚才 |
| 作者单位： | 安徽理工大学能源与安全学院煤矿安全高效开采省部共建教育部重点实验室; |
| 基金项目： | "十一五"国家科技支撑计划重点资助项目 ， 国家重点基础研究发展计划(973计划)资助课题 ， 国家自然科学基金资助项目 |
| 摘 要： | 应用现场实测和计算机数值模拟(FLAC3D)方法,研究调整并分析了不同煤柱宽度条件下,综放回采巷道围岩位移分布特征及其变化规律.研究结果表明,护巷煤柱的宽度不同,综放工作面巷道位移变形有很大差异,巷道围岩移动具有明显的采动影响近场效应;在一定的护巷煤柱宽度范围内,并非煤柱越宽越稳定,或在极窄小煤柱护巷条件下,将巷道布置在采空区边缘低应力区就有利于维护;合理的支护方式应能控制巷道呆动影响剧烈阶段的围岩变形,支护设计应从载荷控制向变形控制转变. |
| 关 键 词： | 煤柱宽度 巷道围岩 综放工作面 |
Influence law of coal pillar width to mining gateway displacement of fully mechanized top coal caving mining face |
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| XIE Guang-xiang,WANG Lei,CHANG Ju-cai. Influence law of coal pillar width to mining gateway displacement of fully mechanized top coal caving mining face[J]. Coal Science and Technology, 2008, 36(12) | |
| Authors: | XIE Guang-xiang WANG Lei CHANG Ju-cai |
| Affiliation: | XIE Guang-xiang,WANG Lei,CHANG Ju-cai(Key Lab of Mine Safety , High Efficient Mining Jointly Set by Province , Ministry of Education,School of Energy , Safety Engineering,Anhui University of Science , Technology,Huainan 232001,China) |
| Abstract: | With the site measurements and the computer numerical simulation(FLAC3D) method,the paper studied and analyzed the surrounding rock displacement distribution features and the variation law of the mining gateway with different coal pillar widths.The study results showed that due to different coal pillar width,the displacement and deformation of the mining gateway would be great difference.The surrounding rock displacement of the mining gateway would have an obvious close distance affect by the mining operati... |
| Keywords: | coal pillar width surrounding rocks of gateway fully mechanized top coal caving mining face |
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