| 褶皱中和面位置确定及其在六盘水涝河向斜中的应用 |
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| 引用本文： | 顾宏星,傅雪海,季明,陈莉.褶皱中和面位置确定及其在六盘水涝河向斜中的应用[J].煤田地质与勘探,2011,39(5):11-14. |
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| 作者姓名： | 顾宏星 傅雪海 季明 陈莉 |
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| 作者单位： | 1. 中国矿业大学资源与地球科学学院, 江苏 徐州 221008; |
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| 摘 要： | 假定弯曲流动褶皱的多层岩层是由多个各向同性的弹性薄层粘合而成的非均匀板，基于弹性薄板理论，研究了褶皱岩层仅受纯弯曲作用时褶皱中和面的位置的确定问题，得出了用各岩层弹性模量、泊松比和岩层厚度表示的褶皱中和面位置公式。结合贵州六盘水煤田涝河向斜，计算了涝河向斜褶皱中和面处于龙潭组9号煤层的底板岩层细砂岩中，距茅口组底部966 m, 煤岩层距离中和面越近，褶皱构造对其瓦斯赋存影响越少，使得该处的瓦斯含量与翼部差值就越小。研究成果对煤层气开发及煤与瓦斯突出防治具有一定的指导作用。
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| 关 键 词： | 褶皱中和面 纯弯曲 弹性模量 涝河向斜 瓦斯含量 |
| 收稿时间： | 2010-12-14 |
Locating neutral surface of fold and its application in Laohe syncline in Liupanshui area |
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| GU Hongxing,FU Xuehai,JI Ming,CHEN Li.Locating neutral surface of fold and its application in Laohe syncline in Liupanshui area[J].Coal Geology & Exploration,2011,39(5):11-14. |
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| Authors: | GU Hongxing FU Xuehai JI Ming CHEN Li |
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| Institution: | 1. The School of Resource and Earth Science, China University of Mining and Technology, Xuzhou 221008, China;2. The School of Mine, China University of Mining and Technology, Xuzhou 221008, China |
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| Abstract: | The paper supposed that the rock formations of bending flowage fold is heterogeneous board agglutinated by many isotropic thin layers.Based on elastic thin plate theory,we have studied the questions about locating neutral surface of fold when the rock formation of fold is under pure buckling only,and obtained the location formula of neutral surface of fold with main parameters of modulus of elasticity,Poisson's ratio,and thickness of each rock formation.Combined with Laohe syncline of Liupanshui coalfield i... |
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| Keywords: | neutral surface of fold pure bending modulus of elasticity Laohe syncline gas content |
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