【摘要】 岩土工程问题的有限元分析一般需要考虑初始地应力场,而可供工程应用的初始应力值,主要靠少数实测资料。根据少数测点值,采用人工神经网络与有限元相结合的方法求解岩体初始应力场。通过算例说明:文中所提方法是合理的。更多还原

【Abstract】 The initial stress field is very important in the finite element analysis of geotechnical engineering structure. Unfortunately, in the engineering practice, there are only a few messages of initial stresses obtained by the test in situ. A methodology of initial stress back analysis combining the artificial neural network and finite element theory is proposed. An example is studied; and the results show that the proposed method is reliable and can be applied to engineering practice.更多还原