Firstly, Optimization back analysis of parameters is carried out based on the datas of practical measure, because in this project the parameters of concrete neither testing nor practical datas.
由于本工程混凝土材料各项物性参数即无试验数据又无量测数据，所以，本文首先结合实际测量资料对其进行了参数的优化反演。
The new back analysis method of physics and mechanics parameters of surrounding rock was established by uniform design, calculus of differences and fuzzy artificial neural networks in this paper.
基于均匀设计、差分法和模糊人工神经网络建立了新的隧道围岩物理力学参数反分析方法。
Based on equivalent deformation assumption the back analysis model of determining the viscoelastic parameters of the effect zones is established.
依据变形等效原理，建立了层面影响带的粘弹性参数的反分析模型。
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