深基坑開挖和支護全過程分析的彈塑性有限元法
胡孔國 吳京 宋啟根
- 摘 要
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胡孔國 吳京 宋啟根
（東南大學土木工程學院 南京 210096）[提要] 采用適當?shù)耐僚c支護結構模型和彈塑性有限元理論，編制了模擬深基坑開挖、支護的程序，并結合工程實例進行計算。結果表明這種考慮樁、錨、土三者共同作用的設計方法較傳統(tǒng)的基坑設計方法有許多優(yōu)點，是復雜基坑支護設計的有效方法。
[關鍵詞] 深基坑 開挖 支護 彈塑性 有限元法 共同作用Based on the theory of elasto-plastic finite element,a program for simulating excurvating and supporting of foundation pit is presented, in which suitable model for soil and supporting is adopted. Calculation results show that this method of considering interaction between pile, grout and soil has more advantages compared with traditional method and may be an effective procedure in complex foundation pit design.
Keywords: deep foundation pit; excurvation; supporting; elasto-plastic finite element; interaction
