有效应力原理对饱和黏土的适用性  

Validity of effective stress principle in saturated clay

作　　者：陈愈炯[1] 

机构地区：[1]中国水利水电科学研究院,北京100044

出　　处：《岩土工程学报》2011年第6期985-988,共4页Chinese Journal of Geotechnical Engineering

摘　　要：简要叙述了国外学者已证明有效应力原理适用于饱和黏土的早期的试验研究工作,虽然他们的结论不同于国内的研究人员在近年来取得的结论。新的结论是:由于黏土颗粒周围的结合水的微观作用,有效应力原理并不适用于黏土。为此,笔者提出少量未经发表的试验资料,间接地说明国外学者早期的结论仍然是正确的。同时指出,他们取得不正确结论的原因是由于在没有充分的论证下,过多地估计了结合水的体积和过分强调了结合水所起的作用,并且漠视了国外的早期研究成果。Early worldwide experiments showing the validity of effective stress principle in saturated clay are concisely described,though their conclusions are different from those put forward by recent domestic researchers based on the theoretical analysis of bond water surrounding the clay particles.Few unpublished test results further proving that the effective stress principle is valid in clay are presented,and the view that over estimation of the volume of bond water and over emphasis of the role played by bond water surrounding the clay particles may result in incorrect conclusion is put forward.And another reason is that young researchers don＇t pay much attention to the early publications.

关 键 词：有效应力 饱和黏土 结合水 

分 类 号：TU43[建筑科学—岩土工程]