文档介绍：第27卷增刊 2006年10月岩土力学 Rock and SoilMechanics Supp. 文章墙号l1000--7598--(2006)增刊一0099一04 膨胀土含水量记忆膨胀模型孙即超1,高全臣1,杨永琦1,周富华2,刘飞3 (,北京100083;,南宁530001;,北京100044) 摘要t在现场施工过程中膨胀土切坡很稳定,但当降水时膨胀土遇水膨胀。发生破坏,挖除坍滑的部分,切坡遇雨又继续破坏,不断往复,针对这一实际情况,结合以往的杆件单元模型提出了膨胀土的含水量膨胀模型。膨胀模型在外力作用以及历史上的最大含水量作用下对最大含水量具有记忆性,外力卸除,表现出一般土的特性,只有再次来临的含水量大于历史上的最大含水量时,才表现出膨胀土所特有的膨胀性。,与以往的弹塑性硬化体所不同之处的直观上的表现在于,。关键词。膨胀土;含水量;记忆模型:弹塑性硬化体中图分类号:Tu443 文献标识码:A Water content memorized expansive model ofexpansive soils SUN Ji—cha01, GA0 Quan—chenl, YANG Yong—qil, ZHOU Fu—hua2,UU Fei3 ofMechanics and Engineering,China University ofMining andTechnology,Beijing 100083,China; ofCivilEngineering,Bcijing Building Construction,Bcijing 100044,China; ofTraffic Science,Nanning 530001,China) Abstract:In thefieldconstruction,the expansive cut slope very stable,but during orafter a the destroyed part dug,the slope destroyed again when es happens again and again according theabove thepaper gives awater expansive model ofexpansive model memorizes themax water content theIlismry under some certain stress,and has storedmuch the stress removed,the expansive deformed only according thestress-strain curve ofthegeneral when es,the model begins show nature paper give