| 重庆市砚石台煤矿煤层流变特征及规律探讨 |
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| 引用本文： | 薛喜成.重庆市砚石台煤矿煤层流变特征及规律探讨[J].煤田地质与勘探,2003,31(5):20-23. |
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| 作者姓名： | 薛喜成 |
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| 作者单位： | 西安科技大学地质与环境工程系 陕西西安 710054 |
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| 摘 要： | 以构造变形强烈的重庆市砚石台煤矿为例,通过井下煤层的观测与煤标本的显微镜观察,分析了煤层中的宏观与微观流变特征,并结合煤层构造的发育特征,总结了煤层流变的控制因素、发育规律及其成因。研究结果认为,砚石台煤矿存在不同程度的煤层流变现象,煤层流变程度受控于层滑作用、煤层构造、煤层层位和煤层倾角等因素。受其影响,煤层流变强烈地段主要集中在4号煤层的地层产状平缓处,次级构造密集发育和层滑作用强烈地段。
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| 关 键 词： | 煤层流变 煤层构造 层间滑动构造 砚石台煤矿 |
| 文章编号： | 1001-1986(2003)05-0020-03 |
| 收稿时间： | 2003-03-27 |
| 修稿时间： | 2003年3月27日 |
Research on rheological characteristics and rules of coal seam in Yanshitai Colliery,Chongqing City |
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| XUE Xi,cheng.Research on rheological characteristics and rules of coal seam in Yanshitai Colliery,Chongqing City[J].Coal Geology & Exploration,2003,31(5):20-23. |
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| Authors: | XUE Xi cheng |
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| Institution: | Department of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China |
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| Abstract: | The coal seam is easily flow deformed under the conditions of complicated geological structure.Taking Yanshitai Colliery in Chongqing City as an example,by means of systematic observation of coal seam in the pit and through microscope,the macroscopic and microcosmic characteristics of coal seam rheology is analyzed,and its controlling factors,distributing rules and formative cause is summed up.The author of this paper pointed out that there exists obvious rheology of coal seam in Yanshitai Colliery.The control factor of rheology of coal seam included layer slip action,structure of coal seam,geologic position of coal seam and obliquity of coal seam.Because of these influence factors the strong sector of rheology chiefly concentrates in the flat stratum in No.4 coal seam,dense places of secondary geologic structure,as well as strong sector of layer slip structure.This conclusion has some guiding meaning to scientific evaluation and foreacsting of rheology of coal seam and the reasonable deployment of mining engineering. |
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| Keywords: | rheology of coal seam tectonic of coal seam layer slip structure Yanshitai Colliery |
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