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中文摘要：
结合FLAC3D显式差分算法在大规模岩土工程数值分析中的优势,并针对FLAC3D在复杂计算模型特别是结构模型构建方面的不足,基于HyperMesh软件平台开发了FLAC3D前处理程序。阐述了程序开发的基本思路,介绍程序中实体单元及结构单元的节点转换关系,通过内支撑围护墙和土钉网喷混凝土两种典型基坑工程实例,检验前处理程序的功能和适用性,为FLAC3D复杂计算模型的建立提供一种便捷方法。
英文摘要：
In combination with the unique advantage of FLAC3D with explicit finite difference method in application to large-scale numerical analysis in geotechnical engineering area,and according to its shortage of pre-processing capability of building up complex numerical model especially for structural element model,a preprocessing software for FLAC3D based on HyperMesh is developed to solve this issue.The basic approach and flow diagram of the pre-processing program are expounded,and the node conversion rule of solid element and structural element between HyperMesh and FLAC3D is presented.Two typical excavation case histories,one with inside struts and retaining wall,another with soil nails and shot concrete covering,are given to demonstrate the engineering feasibility of the developed program.
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