| 用于垃圾土地基加固的碎石桩承载力 |
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| 引用本文： | 高海,施建勇,王蕊. 用于垃圾土地基加固的碎石桩承载力[J]. 重庆大学学报(自然科学版), 2011, 34(2): 113-119 |
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| 作者姓名： | 高海 施建勇 王蕊 |
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| 作者单位： | 河海大学教育部岩土力学与堤坝工程重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(50878075) |
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| 摘 要： | 根据现有垃圾土地基碎石桩处理的试验,发现其破坏形式为桩体的侧向鼓胀;假设桩周垃圾土因桩的侧向鼓胀达到朗肯被动破坏状态,且不计地基垃圾土和桩身自重,由桩、桩周垃圾土的极限平衡,可以得到桩的极限承载力理论计算公式;依据已经进行的相关试验和参考资料确定公式中的计算参数,计算出桩的极限承载力;同时进行了桩身重型动力触探试验,可以由贯入击数推求承载力的特征值;经过理论计算与原位试验结果对比分析,两者比较接近。
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| 关 键 词： | 垃圾土地基 城市固体废弃物 碎石桩 鼓胀破坏 承载力 动力触探 原位试验 |
| 收稿时间： | 2010-09-19 |
Bearing capacity of solid waste ground reinforced by stone column |
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| GAO Hai,SHI Jian-yong and WANG Rui. Bearing capacity of solid waste ground reinforced by stone column[J]. Journal of Chongqing University(Natural Science Edition), 2011, 34(2): 113-119 |
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| Authors: | GAO Hai SHI Jian-yong WANG Rui |
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| Affiliation: | GAO Hai,SHI Jian-yong,WANG Rui(Key Laboratory of MOE of Geomechanics and Dam Engineering,Hohai University,Nanjing 210098,Jiangsu,P.R.China) |
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| Abstract: | Based on presented tests of improvement of solid waste ground by stone column,the failure mode of lateral expansion of column body can be found.It is assumed that solid waste surrounding column is in Rankin's positive limit situation caused by lateral expansion of column body,self weight solid waste and column is neglected,the calculation theory of limit bearing capacity of stone column can be extended on equilibrium of solid waste and column.The limit bear capacity of stone column can be calculated on para... |
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| Keywords: | ground of solid waste MSW stone column expansion failure bearing capacity dynamic penetration tests in-situ test |
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