%0 Journal Article
%T STUDY ON DEFORMATION AND STRENGTH CHARACTERISTIC OF EXPANSIVE SOIL WITH TRIAXIAL TESTS<br>南阳膨胀土变形与强度特性的三轴试验研究
%A Lu Zaihua
%A Chen Zhenghan
%A Sun Shuguo
%A <br>卢再华
%A 陈正汉
%A 孙树国
%J 岩石力学与工程学报
%D 2002
%I 
%X The triaxial tests of Nanyang unsaturated expansive soil are carried out under four kinds of stress paths, that is isotropic loading tests at various controlled suction, shrinkage tests at various controlled net mean stress, swelling tests at various controlled net mean stress and drained shear tests under controlled cell pressure and suction. Many meaningfull results are obtained. The yield behaviour under isotropic loading of expansive soil can be described by the LC curve, The yield suction of shrinkage test decreases as the net mean stress increasing. The friction angle under unsaturated state is close to that under saturated condition. The total cohesion increases with suction. The water content changes linearly with the net mean stress at isotropic loading test and triaxial shear test. The relationship between water content and suction is also linear under shrinkage test and swelling test.
%K unsaturated soil
%K expansive soil
%K triaxial test
%K yield
%K deformation
%K strength
%K variation of water content<br>非饱和土
%K 膨胀土
%K 三轴试验
%K 屈服
%K 水量变化
%K 试验
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=A87977693488110A&yid=C3ACC247184A22C1&vid=659D3B06EBF534A7&iid=94C357A881DFC066&sid=E5ED9059DE792E50&eid=19402779123D7C0E&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=19&reference_num=8