人民黄河
人民黃河
인민황하
Yellow River
2014年
10期
103-105
,共3页
超单元网格法%三维有限元%建模%大型地下洞室群
超單元網格法%三維有限元%建模%大型地下洞室群
초단원망격법%삼유유한원%건모%대형지하동실군
super-element method%3D FEM%modeling%large scale underground caverns
采用超单元网格法对某地下洞室群总平面布置图和典型断面布置图进行二维有限元网格划分，结合控制断面线性插值的方法，对复杂地质条件下大型地下洞室群进行可供渗流有限元计算的三维网格的自动划分。该法较好地解决了因计算边界复杂、地层材料分区多变、建筑物突变导致的很难自动生成三维有限元网格的问题。工程实例建模表明，该方法具有操作简单、适应性强、单元形态较好等优点。
採用超單元網格法對某地下洞室群總平麵佈置圖和典型斷麵佈置圖進行二維有限元網格劃分，結閤控製斷麵線性插值的方法，對複雜地質條件下大型地下洞室群進行可供滲流有限元計算的三維網格的自動劃分。該法較好地解決瞭因計算邊界複雜、地層材料分區多變、建築物突變導緻的很難自動生成三維有限元網格的問題。工程實例建模錶明，該方法具有操作簡單、適應性彊、單元形態較好等優點。
채용초단원망격법대모지하동실군총평면포치도화전형단면포치도진행이유유한원망격화분，결합공제단면선성삽치적방법，대복잡지질조건하대형지하동실군진행가공삼류유한원계산적삼유망격적자동화분。해법교호지해결료인계산변계복잡、지층재료분구다변、건축물돌변도치적흔난자동생성삼유유한원망격적문제。공정실례건모표명，해방법구유조작간단、괄응성강、단원형태교호등우점。
Based on the planar mesh generation of general arrangement plan and typical sections,combined with the linear interpolation of control sections,the automatic division of 3D FEM mesh for large scale underground caverns’seepage analysis was realized by means of the super-element method under complicated geological conditions. This method contributed a solution for the problems caused by the complex boundaries,polytropic strata materials and the saltation of the buildings. Several engineering applications show that this method is more simple,applicable and efficient.
