| 大采高工作面顺槽位置模拟研究 |
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| 引用本文： | 余忠林,涂敏.大采高工作面顺槽位置模拟研究[J].煤炭工程,2006(5):49-51. |
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| 作者姓名： | 余忠林 涂敏 |
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| 作者单位： | 中国矿业大学,北京,100083;安徽理工大学,安徽,淮南,232001;安徽理工大学,安徽,淮南,232001 |
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| 摘 要： | 大采高综采工作面生产中将面对应力水平高和应力集中程度高的问题。根据大采高面的力学环境建立了窄煤柱的弹塑性力学模型,运用求解非线性大变形问题有限差分法(FLAC2D4.0)程序,初步得到了煤柱内的塑性场、位移场和应力场分布规律。大采高窄煤柱内塑性区呈上大下小状,范围达4~6m。
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| 关 键 词： | 大采高面 顺槽 数值模拟 FLAC2D4.0 塑性变形 |
| 文章编号： | 1671-0959(2006)05-0049-03 |
| 收稿时间： | 2005-11-24 |
| 修稿时间： | 2005年11月24 |
Simulation on the position of road along next gob with large mining height face |
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| YU Zhong-lin,TU Min.Simulation on the position of road along next gob with large mining height face[J].Coal Engineering,2006(5):49-51. |
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| Authors: | YU Zhong-lin TU Min |
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| Affiliation: | 1.China University Mining Technology, Beijing, 100083, China; 2,Anhui University of Science and Technology, Anhui Huainan, 232001, China |
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| Abstract: | According to mechanical surroundings of the road driven along next gob for large mining height,an elastic plastic mechanical model of the narrow pillar is established.FLAC program are carried out for strata movement and surface displacement due to coal extraction by different mining layouts.The laws of the plastic field and the displacement field and the stress field in the narrow pillar are obtained preliminarily.In the narrow pillar the plastic area assumes an inverse trapezoid,the scope reaches 4~6m,the result is important to locate roadways in site. |
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| Keywords: | Large mining height Roadway along next gob Numerical simulation FLAC2D4 0 Plastic deformation |
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