| 腐木淤泥混合土的压缩特性研究及处理方法分析 |
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| 引用本文： | 单凌志.腐木淤泥混合土的压缩特性研究及处理方法分析[J].公路,2012(5):90-94. |
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| 作者姓名： | 单凌志 |
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| 作者单位： | 中国公路工程咨询集团有限公司 北京市 100097 |
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| 摘 要： | 腐木淤泥混合土是在广东省揭普高速公路修建过程中所发现的一种特殊软土,具有高含水率、高压缩性、低渗透性等特点。通过固结压缩试验、回弹试验、流变试验等室内试验,分析了腐木淤泥混合土的压缩、回弹及次固结变形特性,整理出腐木淤泥混合土的物理性质指标及压缩指标。同时结合工程实例得出,小间距袋装砂井+超载预压是处理腐木淤泥混合土地基的有效手段。研究结论可为以后的类似地基处理设计与施工提供重要依据。
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| 关 键 词： | 腐木淤泥混合土 物理性质指标 压缩指标 袋装砂井 超载预压 |
Research on Compression Properties and Treating Measure Analysis of Decayed Wood and Silt Mixed Soil |
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| SHAN Ling-zhi.Research on Compression Properties and Treating Measure Analysis of Decayed Wood and Silt Mixed Soil[J].Highway,2012(5):90-94. |
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| Authors: | SHAN Ling-zhi |
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| Institution: | SHAN Ling-zhi(China Highway Engineering Consultants Co.,Ltb.,Beijing 100097,China) |
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| Abstract: | Rotten Wood and Silt Mixed Soil(RWSMS) is an special kind of soft soil which has been found in the foundation of Jie-Pu Expressway of Guangdong Province.It has the characteristics of high water ratio,high compressibility and low permeability.The compression properties、springback properties and secondary consolidation deformation properties of RWSMS are analyzed by laboratory test and the index of physical property and comepression is got.It are concluded that small distance bag sand-well and overload prepressure are the effective method to treat RWSMS foundation by the engineering example.The conclusion provide the important evidence for the design and construction of similar foundation. |
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| Keywords: | rotten wood and silt mixed soil physical property index compression index bag sand-well overload prepressure |
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