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地下洞室全过程优化设计建模理论与分析方法 【作者】杨海霞 【导师】卓家寿

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【作者】杨海霞导师卓家寿水利论文Q%i7H.T(h
【作者基本信息】河海大学,水工结构工程,2002年,博士水利论文'r3n.[3Q4J

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JHFK\ m[1bO.D%@0【中文摘要】 本文综合考虑地下洞室群的传统设计过程、施工过程、运行性态及天然地质因素和工程因素,对地下洞室群全过程优化设计建模理论进行了研究,提出了地下洞室群三阶段优化设计模式。建立了考虑几何仿真、本构仿真、受力状态仿真和受力过程仿真的有限元分析模型。 论文提出了在优化设计模型中,评价方案优劣的最小能量偏差准则和最小形状改变比能偏差准则,为本文研究的地下洞室群优化设计问题奠定了准则基础。 论文提出了任意离散度实数编码遗传算法,为大型复杂结构的优化设计提供了一个收敛性好、寻全局解能力强、适应性好、简单实用的算法。为本文研究的地下洞室群优化设计问题奠定了算法基础。 论文创建了考虑开挖过程和地应力方向的地下洞室群布局优化设计模型、地下洞室群开挖顺序动态规划模型和基于布锚岩体均化力学参数的支护优化设计模型。编制了上述优化设计程序,工程实例计算表明,本文提出的优化设计模型是合理的,研究成果是可靠的,具有较好的工程应用前景。

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xM{8x(Z]lBz0【英文摘要】 Based on the synthetic study of traditional design, construction process, working condition, naturally geologic factors and other project factors of a group of underground cavity, The three phase models of the underground cavity for optimization design are presented in this paper. Moreover, the FE analysis model with geometry simulation, constitution simulation, stress state simulation and action process simulation is formed in this paper.The author proposes two criteria to choose the best design model including the minimum strain energy deviation criteria and the minimum strain energy of shape change criterion. This is a criterion base for solving the optimization design problems of underground cavity in the paper.The author presents random discrete real code genetic algorithm, which is a simple and practical algorithm to find the global optimization result quickly with good convergence and adaptation in the case of large complex constructions. This algorithm provides the algorithmic ...更多base for solving optimization design problems of the underground cavity.The paper builds distribution optimization design model of underground cavity considering excavation process and the tectonic stress direction, excavation sequences, dynamic programming model and optimization design of support parameter based on homogenized mechanics parameters for anchored rock. Optimization programs are completed. Results of case in engineering have demonstrated the optimization models proposed in the paper are reasonable, reliable and ready for the application in engineering practice.  还原

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t'Y%^4v(SFvOi/u`0【中文关键词】 结构优化设计; 地下洞室; 地下厂房; 优化算法; 遗传算法; 能量准则; 动态规划; 布局优化; 支护优化
#Z.mO3ho0【英文关键词】 structural optimization design; underground cavity; underground powerhouse; optimization algorithm; genetic algorithm; energy criterion; dynamic programming; distribution optimization; support parameter optimization水利论文 B]'q3X)D1|
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TAG: 分析方法 建模 卓家寿 杨海霞 地下洞室
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