登录
注册
E-alert
登录
注册
E-alert
EXPERIMENTAL RULES OF SLAKING FOR K0 COMPRESSED CLAY AND ITS DESCRIPTION
-
摘要: 通过对取自奥林匹克森林公园的土进行的干燥状态和饱和状态下的K0压缩试验及湿化试验,得出以下结论:在e-lgp图中:1)正常压密干土在各荷载下湿化,其孔隙比均落在饱和泥浆压缩线上;2)同一前期固结压力下,不同超压密比的干土湿化后,其孔隙比也近似落在一条直线上。依据湿化试验的结果,对K0状态下天然土的湿化行为给出数学描述,并对试验数据进行预测,结果表明:预测结果与试验结果基本吻合。Abstract: In this paper, from results of K 0 compression tests and slaking tests on both dry clay and saturated clay in Olympic Park, some conclusions are obtained: in e-lgp paragraph, when the normal compressed dry clay is wetted under different stresses, the void ratios all reach compression line of saturated clay; while different over compressed dry clay in the same pre-consolidation pressure is wetted, the void ratios also reach one line approx imately. Concluding from the results of slaking tests, a mathematical description is worked out to describe wetting deformations under K0 compression. Using this mathematic description, a prediction for wetting deformations is given out and it agree well with the tests results.
-
Key words:
- wetting /
- dry clay /
- K0 compression /
- rule /
- description
-
姚仰平. 土力学. 北京: 高等教育出版社, 2004 [2] Alonso E E, Gens A, Josa A. A Const itutive Model for Partially Saturat ed Soils. Geotechnique, 1990, 40(3) [3] Wheeler S T, Sivakumar V. An Elasto-Plastic Critical State Framework for Unsaturat ed Soil. Geot echnique, 1995, 45(1) [4] Bonelli S, Poulain D. Unsaturated Elasto-Plastic Model Applied To Homogeneous Earth Dam BehaviourPPProc 1st International Conference Unsaturated Soils. Pairs: 1995 [5] 黄 海, 陈正汉, 李刚. 非饱和土在p-s 平面上屈服轨迹及土-水特征曲线的探讨. 岩土力学, 2000, 21(4) [6] 俞培基, 陈愈炯. 非饱和土的水气形态与力学性质的关系. 水利学报, 1965, (1) [7] 殷宗泽, 赵航. 土坝浸水变形分析. 岩土工程学报, 1990, 12(2) [8] 李广信. 土的清华弹塑性模型及其发展. 岩土工程学报, 2006, 28(1) [9] GBPT 50123-1999 土工试验方法标准 [10] 弗雷德隆德D G, 哈拉尔佐H. 非饱和土力学. 陈仲颐, 张在明,陈愈炯, 等译. 北京: 中国建筑工业出版社, 1997 -
点击查看大图
计量
- 文章访问数: 67
- HTML全文浏览量: 4
- PDF下载量: 44
- 被引次数: 0
下载:
