静孔隙水压力与超静孔隙水压力——兼与陈愈炯先生讨论

李广信

静孔隙水压力与超静孔隙水压力——兼与陈愈炯先生讨论 English Version

李广信

清华大学水沙科学与水利水电工程国家重点实验室，北京100084

基金项目: 重点基础研究发展计划（973）项目（2010CB732103）

详细信息

作者简介:
李广信 (1941 – ),男，黑龙江宾县人，博士，教授，主要从事土的本构关系等方面的研究。

中图分类号: TU43
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出版历程
- 发布日期: 2012-05-19

Static pore water pressure and excess pore water pressure— A discussion with Mr. CHEN Yu-jiong

LI Guang-xin

State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China

摘要

摘要: 土中的孔隙水压力是土力学的基本概念，也是饱和土体有效应力原理和渗流固结理论的基础。本文认为静止的地下水中和稳定渗流场中土中孔隙水压力均属于静孔隙水压力，而超静孔隙水压力是由于外部作用或者边界条件变化在土体中引起的，不同于静孔隙水压力的那部分孔隙水压力，在有排水条件下，它将逐渐消散，并在消散过程中伴随土体的体积变化。文中也针对一些例子进行了讨论。
- 关键词：静孔隙水压力 /
- 超静孔隙水压力 /
- 稳定渗流 /
- 有效应力原理
Abstract: The pore water pressure is the basic concept in soil mechanics. It is also the foundation of the principle of effective stress and the consolidation theory of saturated soils. In this paper, the pore water pressure in soils in static groundwater and in steady seepage field is defined as the static pore water pressure. The excess pore water pressure is induced by external action including loading and change of boundary condition in soils, and the change of the excess pore water pressure is always accompanied with that of soil volume. Some examples are also discussed.
- static pore water pressure /
- excess pore water pressure /
- steady seepage /
- principle of effective stress

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参考文献(8)

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