| 煤内生裂隙的成因 |
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| 引用本文： | 钟玲文.煤内生裂隙的成因[J].中国煤田地质,2004,16(3):6-9. |
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| 作者姓名： | 钟玲文 |
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| 作者单位： | 煤炭科学研究总院西安分院 陕西西安710054 |
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| 摘 要： | 根据多年对煤层裂隙的几何形态、分布规律、性质、与煤层的组合关系等的研究，认为煤内生裂隙是在煤化作用过程中，由于脱水、脱挥发分、煤体积收缩作用产生或者是由于煤化作用生成的水、气体及温度升高，孔隙产生膨胀，形成异常高压产生的；裂隙的发育方向因受区域应力场的控制，区域上具有一致性，且走向与最大主应力方向一致；内生裂隙属于张性裂隙。
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| 关 键 词： | 内生裂隙 成因 煤 |
| 文章编号： | 1004-9177(2004)03-0006-04 |
| 修稿时间： | 2003年8月7日 |
The Genesis of Endogenic Fracture in Coal |
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| Zhong lingwei.The Genesis of Endogenic Fracture in Coal[J].Coal Geology of China,2004,16(3):6-9. |
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| Authors: | Zhong lingwei |
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| Abstract: | Based on the extensive observation on geometry,distribution and feature of fractures in coal as well as its' assembly relationship to coal seam by author for many years,it is thought that endogenic fracture is formed due to shrinkage of coal volume caused by dewatering and de-volatile during coalification.Or its' formation attributes to abnormal high pressure due to the expansion of pores caused by the raise in the moisture,gas and temperature formed during coalification.Regional principal stress field basically controls the direction of fracture,and they both have a consistency in regional strike.Namely,the main fracture strike is consistent with that of maximum principal stress.The endogenic fracture has mechanic feature of tensile. |
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| Keywords: | coal endogenic fracture genesis |
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