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。
With the measured data, the parameters of equivalent circle zone can be obtained by back analysis of soil displacement.
在有实测位移的情况下，可运用位移反分析法较准确地获取等代层的参数。
Finally, for a practical project, an experiment of temperature field of a cubic concrete block is made on construction site and the back analysis for unknown parameters is carried out.
结合实际工程，在工程现场进行了立方体混凝土块温升试验和用有限元对其某些温度特性参数进行了反演分析。
Aiming at practice in site, the new back analysis method of mechanics parameters of surrounding rock was established by calculus of differences and artificial neural networks.
结合现场实践，基于差分法和人工神经网络建立了新的围岩力学参数反分析方法。
This case shows the method can be applied to the back analysis and identification of the material parameters for concrete dam.
实例表明，随机反分析方法能较好地应用于混凝土坝材料参数的反演和识别中。
BP ANN model of back analysis of CFRD has been constructed with Newff Function of MATLAB language, the material parameters of Duncan E-B model is calculated by back analysis.
运用MATLAB语言提供的神经网络功能函数，建立面板堆石坝反分析的BP神经网络模型，对邓肯e - B模型的材料参数进行反演计算。
With the offset data obtained by in-situ construction method monitoring, the mechanical feature parameters of surrounding rock are obtained with optimal back-analysis method.
利用反演分析求得的围岩力学参数，应用有限元法对该工程的施工过程围岩稳定性进行了分析计算。
The results indicate the validity of improved PSO methods in the back analysis of the mechanical parameters of concrete face rock-fill dam.
计算结果表明，微粒群算法具有概念简单、容易实现、计算速度快等优点，适合应用于面板堆石坝坝料参数反演分析。
The paper analyzes the sliding range and sliding surface of an old landslide by investigating an old sliding slope. In addition, back analysis is used on shear resistance parameters of slide surface.
通过对某顺层古滑坡的现场调查，分析判断了古滑坡的滑动范围、滑动面，并对滑动面抗剪强度参数进行了反分析计算。
The basic agreement of result of the back analysis with the testing data indicates that the mechanical parameters and initial stress field obtained from the proposed back analysis are reasonable.
反演位移计算值与实测值较为吻合，表明反演得到的力学参数和地应力场基本合理。
The new back analysis method of mechanics parameters of surrounding rock was established by calculus of differences and artificial neural networks in this paper.
基于差分法和人工神经网络建立了新的硐室围岩力学参数反分析方法。
So it should be discussed before application of the mechanical parameters back analysis methods based on convergence curves.
复杂多变的围岩条件使基于收敛曲线的累积位移和增量位移参数反演方法的应用变得非常谨慎。
In view of complex nonlinear relationship between dam seepage parameters and piezometric tube level, the least squares support vector machine is applied to the back analysis of seepage parameters.
针对土石坝渗透参数和测压管水位间复杂的非线性关系，应用最小二乘支持向量机于土石坝渗透系数的反演。
What's more, bearing capacities of partially inclined piles, inclined pile-groups and partially inclined piles due to pit excavation are also studied based on the parameters from the back analysis.
同时还对局部倾斜桩、倾斜群桩及基坑开挖导致的局部倾斜桩的竖向承载力进行了分析。
What's more, bearing capacities of partially inclined piles, inclined pile-groups and partially inclined piles due to pit excavation are also studied based on the parameters from the back analysis.
从挤土效应及振动影响、浅层障碍、斜桩、桩身破坏等方面总结了静压预应力管桩施工中的常见问题，并分析了产生的原因，介绍了预防措施，以提高桩的合格率。
Based on the theory of displacement back analysis and the theory of geometrical damage, identification of damage parameters in joint rock mass is studied in this paper.
基于位移反分析理论及几何损伤理论，对巷道裂隙岩体的损伤参数进行了辨识。
Based on the theory of displacement back analysis and the theory of geometrical damage, identification of damage parameters in joint rock mass is studied in this paper.
基于位移反分析理论及几何损伤理论，对巷道裂隙岩体的损伤参数进行了辨识。
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