【作者】 邱小文；

【导师】 汪仁和；

【作者基本信息】 安徽理工大学 ， 岩土工程， 2008， 硕士

【摘要】 在深井冻结法凿井工程中,多圈管冻结壁温度场的分析计算是冻结壁设计的基础。因此,研究掌握多圈管冻结条件下冻结壁温度场的计算方法,具有非常重要的理论和现实意义。国际通用的有限元软件在温度场的数值模拟方面有着广泛的应用,但其价格高昂,对人工多圈管冻结法凿井工程中的一些实际问题应用起来并不方便,比如分期冻结方案的模拟问题、冻结管发生断裂后的温度场计算问题、考虑冻结管偏斜条件下的计算模型建立问题等。FEPG(Finite Element Program Generator)是一种有限元程序自动生成系统,其最大特点是可以根据虚功方程产生计算所需的源程序,用户可以直接修改内部参数,控制计算过程。本文即利用FEPG平台,开发多圈管冻结温度场的有限元计算程序。论文对如何生成该源程序进行了深入细致的分析,对如何用FEPG的有限元(描述)语言编写控制方程文件及计算方法文件、各个文件中变量含义、子过程功能和文件接口做了详细说明,这对进一步利用FEPG程序做二次开发有重要意义。文中还对FEPG.GID及FEPG.GID的二次开发语言TCL/TK语言作了详细的介绍,并对FEPG.GID的二次开发接口作了详细说明,这对于今后的接口开发有重要的参考价值。论文的研究成果为如何利用FEPG进行有限元计算程序开发提供了参考。论文最后对一个工程实例进行了模拟,模拟结果符合工程实际状况,可为实际工程应用提供参考。更多还原

【Abstract】 In freezing method deep shaft sinking projects, analyzing and computing the temperature field of frozen wall is the base of design of the frozen wall. So, it has extremely important theoretical and realistic significance to study and master the computing method of the freeze wall temperature field under multi-freezing-tube cycles freezing condition.The international general finite element software has the widespread application in the temperature field simulation aspect. But it is very expensive, and it is not convenient when it processing some actual problems in the shaft sinking projects using artificial multi-freezing-tube cycles freezing method, for example: how to simulate periodic freezing situation problem, how to create geometry model quickly and conveniently under deflective pipes? FEPG (Finite Element Program Generator) is a general purpose finite element program generator. For any kind of finite element modeling, FEPG can automatically generate complete source code based FEM (Finite Element Method) algorithm expressions. Users can control the process of calculation on modifying the internal parameters. The program special for artificial multi-freezing-tube cycles freezing temperature field is based on the source code which is generated by FEPG.The generating procedure is described in detail, and this article also gives a detailed introduction to the method of programming of the control equation files and computing method files, deeply analysis to the program shows the meanings of parameters, function of subroutines and interface files. These works will be very helpful to the development of this program. The article gives a detailed introduction to FEPG.GID and the FEPG.GID’s secondary development language—TCL/TK language, and have very important reference value to the interface development in future.The findings in this paper provide reference for finite element program development using FEPG. In the last part of this paper, we simulate a project example, the simulating result is conformity with actual project situation, might provide reference for the actual project application.更多还原