| 链子崖T_（11）—T_（12）缝段危岩体开裂变形机制 |
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| 引用本文： | 刘传正,张明霞.链子崖T_（11）—T_（12）缝段危岩体开裂变形机制[J].地学前缘,1996,3(2):234-240. |
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| 作者姓名： | 刘传正 张明霞 |
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| 作者单位： | 地质矿产部环境地质研究所 |
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| 摘 要： | 文章全面描述了链子崖Ｔ（１１）—Ｔ（１２）缝段危岩体的开裂形变特征，探讨了危岩体形成的影响因素，如重力、煤层采空区、降雨、水库蓄水、勘探掘进和地震等，指出其破坏机理是重力主导下的不对称的压力拱与悬臂梁（板）弯矩的联合作用。危岩体可以分成具有不同稳定程度的若干块体，治理工程也应针对它们的不同特点而设计。
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| 关 键 词： | 链子崖危岩体，T_（11）—T_（12）缝段，煤层采空区，压力拱作用，悬臂梁（板）弯矩作用 |
MECHANISMS OF DEFORMING-CRACKING ON THE SEGMENT OF CRACKS T_(11)-T_(12) OF LIANZICLIFF DANGEROUS ROCK BODY |
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| Liu Chuanzheng,Zhang Mingxia.MECHANISMS OF DEFORMING-CRACKING ON THE SEGMENT OF CRACKS T_(11)-T_(12) OF LIANZICLIFF DANGEROUS ROCK BODY[J].Earth Science Frontiers,1996,3(2):234-240. |
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| Authors: | Liu Chuanzheng Zhang Mingxia |
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| Abstract: | This paper is described main characteristics of deforming-cracking on the segment of cracks T(11)-T(12) of Lianzi cliff dangerous rock body, discussed a series of factors,such as gravity. coal mined-out area. rainfall, reservoir storing, exploring or driving andearthquakes on forming the dangerous rock body: its destructive mechanism is recognizedin the non-symmetry stress distribution in an arched shape of east-west direction and flexing moments of cantilever beam (plate) are induced by gravity of rock body and coalmined-out area. The dangerous rock body can be devided into a few parts, and anchoringengineering has to be designed to fit the features of these parts respectively. |
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| Keywords: | Lianzi cliff dangerous rock body T(11)-T(12) cracks segment coal mined-outarea stress distribution in arched shape flexing moments action of cantilever beam(Plate) |
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