地表温度周期波动的饱和土一维热固结解析解

吴瑞潜; 谢康和; 沈建明

doi:10.13204/j.gyjz201008020

地表温度周期波动的饱和土一维热固结解析解

doi: 10.13204/j.gyjz201008020

1.
1. 绍兴文理学院土木工程系,浙江绍兴 312000;
3.
2. 浙江大学软弱土与环境土工教育部重点实验室,杭州 310058;
4.
3. 浙江省第四地质大队,浙江绍兴 312000

详细信息

中图分类号: TU43
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出版历程
- 收稿日期: 2010-02-23
- 刊出日期: 2010-08-20

ANALYTICAL SOLUTIONS OF ONE-DIMENSIONAL THERMAL CONSOLIDATION OF SATURATED SOIL UNDER PERIODIC FLUCTUATION OF SURFACE TEMPERATURE

1.
1. Department of Civil Engineering,Shaoxing University,Shaoxing 312000,China;
2.
2. Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education,Zhejiang University,Hangzhou 310058,China;
3.
3. The Fourth Geological Team of Zhejiang Province,Shaoxing 312000,China

摘要

摘要: 针对地表温度周期波动的饱和土一维热固结问题，建立相应的热固结模型。利用偏微分理论，得到土层内部超静孔隙水压、温度增量的解析解，并进而得到地基沉降的表达式，由此分析饱和土的一维热固结性状，并与Terzaghi解进行比较。结果表明：热固结性状与温度增量、热传导速率、温度波动周期等有关；受地表温度周期波动的影响，超静孔隙水压、沉降也会出现波动性。
- 周期波动 /
- 饱和土 /
- 热固结 /
- 解析解
Abstract: Problems of one-dimensional thermal consolidation of saturated soil under periodic fluctuation of surface temperature were investigated theoretically by establishing the thermal consolidation model. The analytical solutions of excess pore water pressure,temperature increment were deduced by the theory of partial differential equations,and the expressions of settlement were also given. One-dimensional thermal consolidation behaviour of saturated soil was investigated by comparing with the Terzaghi consolidation solution. The results shows that the behaviour of thermal consolidation is affected greatly by the temperature which is embodied by the temperature increase, the rate of heat conduction and period of temperature fluctuation. Under periodic fluctuation of surface temperature,there will be a fluctuation in the behaviour of excess pore-water pressure and settlement in the process of thermal consolidation.
- periodic fluctuation /
- saturated soil /
- thermal consolidation /
- analytical solution

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参考文献(10)

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