岩土工程学报2016，Vol.38Issue(11)：1981-1989,9.DOI:10.11779/CJGE201611007
竖井冻结壁形成过程的光滑粒子法模拟
SPH simulation of forming process of frozen wall of shaft
摘要
Abstract
The freezing process of soil under the action of freezing pipe is related to the release of latent heat of phase change. An accurate description of temperature distribution characteristics near the freezing pipe and the freezing front movement rules is very important to determine the frozen wall thickness and safety design reasonably. The smoothed particle method, as a Lagrange meshless particle method, has been successfully used in solving many kinds of engineering problems with its unique advantages. The problem of heat conduction involving phase change is solved by the corresponding calculation program based on the smoothed particle method, and the practability and reliability of this method is verified through numerical examples with analytical solution, so a new solution for solving this kind of problem is given and the application range of the smooth particle method is extended. In the end, numerical analysis of forming process of frozen wall in construction of a coal mine shaft is carried out. The distribution and evolution characteristics of the temperature field are calculated under the condition of freezing pipe with single-ring and uniformly-spaced arrangement. The freezing effects of two kinds of soil media with different thermal physical properties are compared under the same freezing condition, and the influences of schemes with different staggered distribution holes on the forming process of frozen wall are emphatically analyzed so as to provide a basis for engineering design.关键词
光滑粒子法/冻结相变/温度场/冻结壁Key words
SPH algorithm/phase change of freezing/temperature field/frozen wall分类
建筑与水利引用本文复制引用
陈佩佩,白冰..竖井冻结壁形成过程的光滑粒子法模拟[J].岩土工程学报,2016,38(11):1981-1989,9.基金项目
国家重点基础研究发展计划（“973”计划）项目（2015CB057800）；国家自然科学基金项目 （）
