%0 Journal Article
%T RECOGNITION OF MODELS AND BACK ANALYSIS OF PARAMETERS FOR ARTIFICIAL FROZEN SOILS<br>人工冻土流变模型的识别与参数反演
%A Li Qiang
%A Wang Kuihua
%A Xie Kanghe
%A <br>李 强
%A 王奎华 谢康和
%J 岩石力学与工程学报
%D 2004
%I 
%X Based on frozen soil creep tests,yield stress limit is approximately determined by means of experimental tautochrone at first. Then several visco-elastic and visco-elasto-plastic rheological models are established. The model parameter are feed back by the non-linear least square method. A fuzzy optimization model is developed under the principle of simplicity and accuracy. As a result,the optimal model is Burgers model under the lower stress level or H-H/N/S model under the higher stress level.
%K soil mechanics
%K frozen soil
%K rheological model
%K creep
%K parameter recognition
%K fuzzy optimization<br>土力学
%K 冻土
%K 流变模型
%K 蠕变
%K 参数辨识
%K 模糊优化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=1518E3EF68B7485B&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=708DD6B15D2464E8&sid=7470465163F1C176&eid=5349C9BD3C454FC9&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=4&reference_num=7