土力学课程有限元软件的优化与应用

Optimization and application of finite element code for soil mechanics course

为了弥补当前土力学课程实践教学环节的不足,在前期开发的土力学教学有限元仿真软件基础上,新增了三个计算模块,使得该软件涵盖了平板载荷试验、三轴试验、恒定渗流、简单边坡稳定性和挡墙土压力分析等土力学课程中所有重要问题的分析。另外,在每个仿真模块中添加了关于该模块的土力学原理、有限元基本理论和实现方法,以及模型计算参数的含义与经验取值范围的介绍,提高了软件的易用性。优化后的软件涵盖内容全面,具有更好的容错性和易用性,能够服务于土力学课程的本科教学,达到以"虚"补"实",激发学生学习兴趣和提高学生学习能力的目的。

To make up for the current lack of practical part in the course of Soil Mechanics, based on the previous finite element code developed by the author, we add three new calculation modules so that the new software covers all the typical topics including the plate loading test, triaxial tests,constant seepage,simple slope stability and pressure on retaining wall earth. In addition, in order to improve the ease of use of the developed code, the summary of corresponding soil mechanical theories, the implementation of finite element method, the physical meaning of required calculating parameters and their range in practice are added into each computing module. The new code has a complete coverage of basics in soil mechanics and has good abilities of fault tolerance and ease of use. The software developed in this study enriches the practical teaching resources for soil mechanics and stimulates the learning interest and ability of undergraduate students.