%0 Journal Article
%T Heat source function method for coupling analyses of thermal consolidation in saturated soil<br>岩土介质非稳态热固结耦合问题的热源函数法
%A Bai Bing College of Civil Engineering
%A Beijing Jiaotong University
%A Beijing
%A China
%A <br>白冰
%J 力学学报
%D 2004
%I 
%X Based on the governing equations of thermal coupling consolidation for saturated homogeneous isotropic porous materials, the solutions in transform space are given by repeated Fourier transformations and Laplace transformation. Considering initial temperature field as a fictitious heat source or equalizing heat source as specified initial temperature field, an analytical method for calculating the unsteady temperature field, stress field and displacement field of saturated soils due to instantaneous line heat source is deduced by using the so-called heat source function method. The influence of full coupling effects between the field quantities are considered. By integration in temporal and spatial domain, a calculation method of two-dimensional thermal consolidation problem with initial temperature field and variable strength of heat source with time is established. For convenience of analyses, the concepts of thermal consolidation time factor and coefficient of thermal consolidation are defined. The evolutions of temperature, pore water pressure and displacement with time factor around rectangular heat source are analyzed by the proposed method. The thermal consolidation characteristics and its mechanism are studied. It is showed that this method can be used to solve some complicated thermal consolidation problems effectively, and has an important theoretical and practical meaning.
%K unsteady state
%K coupling effect
%K thermal consolidation
%K heat conduction
%K heat source function<br>非稳态
%K 耦合效应
%K 热固结
%K 热传导
%K 热源函数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=62F993849DAF811A&yid=D0E58B75BFD8E51C&vid=933658645952ED9F&iid=E158A972A605785F&sid=CB3428B1EFB1C133&eid=E57FE519484CFB70&journal_id=0459-1879&journal_name=力学学报&referenced_num=10&reference_num=11