| 香港全风化花岗岩的固结特性 |
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| 引用本文： | 赵建军,王思敬,尚彦军,岳中琦.香港全风化花岗岩的固结特性[J].河海大学学报(自然科学版),2005,33(1):85-88. |
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| 作者姓名： | 赵建军 王思敬 尚彦军 岳中琦 |
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| 作者单位： | 河海大学土木工程学院,江苏,南京,210098;中国科学院地质与地球物理研究所,北京,100029;香港大学,香港 |
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| 基金项目： | 香港大学边坡信息资讯中心资助项目(香港全风化花岗岩的微结构综合研究NO1) |
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| 摘 要： | 对采自香港地区全风化花岗岩原状土样进行了固结试验研究，结果表明：其先期固结压力及超固结比明显偏大，且先期固结压力在深度上表现出异常现象；在固结压力持续增加的条件下，3种土的压缩系数和固结系数逐步减小，开始减小速率比较大，之后趋于平缓，呈近似负指数关系，但压缩系数的变化幅度比固结系数大；全风化花岗岩由于风化所产生的特殊的物理、化学及矿物成分变化和所具有的结构强度是造成其固结特性的主要原因．
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| 关 键 词： | 全风化花岗岩 固结 先期固结压力 超固结比 固结系数 |
| 文章编号： | 1000-1980(2005)01-0085-04 |
| 修稿时间： | 2005/2/3 0:00:00 |
Consolidation characteristics of completely decomposed granite in Hong Kong |
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| ZHAO Jian-jun,WANG Si-jing,SHANG Yan-jun,YUE Zhong-qi.Consolidation characteristics of completely decomposed granite in Hong Kong[J].Journal of Hohai University (Natural Sciences ),2005,33(1):85-88. |
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| Authors: | ZHAO Jian-jun WANG Si-jing SHANG Yan-jun YUE Zhong-qi |
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| Institution: | ZHAO Jian-jun~1,WANG Si-jing~2,SHANG Yan-jun~2,YUE Zhong-qi~3 |
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| Abstract: | Based on consolidation tests of 3 kinds of Completely Decomposed Granite (CDG) from Hong Kong, some conclusions are drawn: the values of preconsolidation pressure and overconsolidation ratio are extremely large; the preconsolidation pressure shows abnormal variation with the buried depth of soil; the consolidation coefficient and the compressibility coefficient decrease with the increase of the normal pressure; the relation between the normal pressure and the coefficients of consolidation and compression demonstrates an approximate negative exponential function; the main factors causing the consolidation of SDG lie in the special mineral constituents, chemical composition and structural strength due to weathering. |
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| Keywords: | Completely Decomposed Granite (CDG) consolidation preconsolidation pressure overconsolidation ratio coefficient of consolidation |
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