| 贵州六盘水炭质泥岩工程特性研究 |
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| 引用本文： | 刘子昂,满立,别江波.贵州六盘水炭质泥岩工程特性研究[J].岩土工程技术,2014(1):51-55. |
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| 作者姓名： | 刘子昂 满立 别江波 |
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| 作者单位： | 喀斯特环境与地质灾害防治教育部重点实验室（贵州大学）,贵州贵阳550003 |
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| 摘 要： | 六盘水的炭质泥岩跟普通泥岩相比具有特殊的工程特性,通过对该地区炭质泥岩物理力学特性的详细研究探讨,室内进行落锥法测定液限和塑限、击实试验、抗剪强度及压缩试验.研究试验结果表明：①炭质泥岩的可塑性强,遇水易软化崩解,强度变低;②炭质泥岩的压实性能受含水率的影响明显,干密度在含水率12.5％～15％时变化很大;③炭质泥岩的粘聚力在含水率小于11％时,随着含水率的增加而迅速减小,在11％～15％时变化小;④炭质泥岩的压缩沉降量在加荷载后较短时间内发生,在加压后能够很快压缩密实,达到较稳定的状态.
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| 关 键 词： | 炭质泥岩 击实试验 抗剪强度 压缩 工程特性 |
Experimental Reserch on Engineering Characteristics of Carbon Mudstone in Liupanshui,Guizhou Province |
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| Liu Ziang,Man Li,Bie Jiangbo.Experimental Reserch on Engineering Characteristics of Carbon Mudstone in Liupanshui,Guizhou Province[J].Geotechnical Engineering Technique,2014(1):51-55. |
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| Authors: | Liu Ziang Man Li Bie Jiangbo |
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| Institution: | (Key Laboratory of Karst Environment and Geohazard Prevention, Ministry of Education(Guizhou University),Guiyang 550003, Guizhou,China) |
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| Abstract: | Compared with ordinary mudstone,carbon mudstone in Liupanshui has special engineering characteristics.The mechanical characteristics of the area of carbon mudstone are researched in detail through fall cone test to determine liquid limit and plastic limit,compaction tests,shear strength test,and compression test in laboratory.The research results show that ①Carbon mudstone is of good plasticity,under the influence of water softening,it easily comes to disintegrate and lower the intensity; ②The moisture content of carbon mudstone can significantly affect on the compaction performance,dry density changed a lot when moisture content is between 12.5 0％ and 15 ％ ; ③The cohesive force of carbon mudstone decreases rapidly with the increase of moisture content when it is leas than 11 ％,and changes little when it is between 11 ％ and 15 ％; ④Compreasion settlement of carbon mudstone appears after the loading in a short period of time,it can quickly compress and achieve a stable state after the loading. |
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| Keywords: | carbon mudstone compaction tests shear strength compression engineering characteristics |
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