对岩土工程数值分析的几点思考

Reflections on numerical analysis of geotechnical engineering

首先,介绍了笔者对我国岩土工程数值分析现状的调查结果及分析,然后,分析了采用连续介质力学分析岩土工程问题的关键,并讨论分析了岩土本构理论发展现状,提出对岩土本构理论发展方向的思考,最后对数值分析在岩土工程分析中的地位作了分析。分析表明,岩土工程数值分析结果是岩土工程师在岩土工程分析过程中进行综合判断的重要依据之一;采用连续介质力学模型求解岩土工程问题的关键是如何建立岩土的工程实用本构方程;建立多个工程实用本构方程结合积累大量工程经验才能促使数值方法在岩土工程中由用于定性分析转变到定量分析。

The investigation report about the application of numerical analysis of geotechnical engineering in China was introduced firstly.Then the key of analyzing geotechnical problems with continuum mechanics and the current situation of geotechnical constitutive theory were discussed;the developing directions of geotechnical constitutive theory was put forward.Finally,the status of numerical simulation in the geotechnical engineering was evaluated.Through above discussions it can be concluded that,the result of numerical analysis is one of the most important back ground for the engineering judgment of geotechnical engineers in the geotechnical engineering analysis;the key of analyzing geotechnical problems with continuum mechanics is to establish simple and practical engineering constitutive model.Establishing many simple and practical engineering constitutive models and accumulating a lot of engineering experience,numerical analysis can be used in geotechnical engineering from qualitative to quantitative.