| 泥质岩膨胀势判断及其破坏机理分析 |
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| 引用本文： | 李曼,曲永新,秦四清,冶小平,孙强,马平.泥质岩膨胀势判断及其破坏机理分析[J].工程地质学报(英文版),2009,17(5):633-637. |
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| 作者姓名： | 李曼 曲永新 秦四清 冶小平 孙强 马平 |
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| 作者单位： | 中国科学院工程地质力学重点实验室|北京|100029 |
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| 摘 要： | 应用曲永新提出的不规则岩块干燥饱和吸水率判别法和成岩胶结系数指标法，对山西某一煤矿巷道中泥质岩的膨胀性进行综合判定，其属于非膨胀性泥质岩。并对巷道中岩样的矿物组成成分进行分析，岩石中石英和铁矿的含量较多，且分布极不均匀，所含粘土矿物主要为高岭石。最后，从岩石的矿物组成、结构构造、节理面及微节理面的特征以及岩石在受压力时裂隙的扩张情况等角度，综合分析得出泥质岩以脆性破坏为主。
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| 关 键 词： | 泥质岩，胶结系数，膨胀性，脆性破坏，节理面 |
CRITERIA OF SWELLING POTENTIAL AND ANALYSIS ON FAILURE MECHANISM FOR MUD ROCK |
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| LI Man QU Yongxin QIN Siqing YE Xiaoping SUN Qiang MA Ping.CRITERIA OF SWELLING POTENTIAL AND ANALYSIS ON FAILURE MECHANISM FOR MUD ROCK[J].Journal of Engineering Geology,2009,17(5):633-637. |
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| Authors: | LI Man QU Yongxin QIN Siqing YE Xiaoping SUN Qiang MA Ping |
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| Institution: | Key Laboratory of Engineering Geomechanics|Chinese Academy of Sciences|Beijing|100029 |
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| Abstract: | This paper adopts the two methods: water absorption of irregular rock in both dry and saturated conditions and cemented coefficient of rock,proposed by Qu Yongxin,to study the swelling potential of mud rock.The mud rock is in some tunnel coal mine in Shanxi.The results show that the mud rock does not swell.On the other hand,the paper examines the mineral composition of the mud rock.It is found that the mud rock has much,non-uniform distributed quartz and iron,as well as kaolinite.The kaolinite is the main c... |
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| Keywords: | Mud rock Cemented coefficient Swelling Brittle failure Joint surface Tunneling |
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