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本文基于新奥法的基本原理 ,对紫坪铺水利工程 1 # 泄洪洞穿越 F3断层段的支护设计方案进行了有限元数值仿真分析和优化设计。分析结果表明 ,按照常规的支护不能保证围岩、支护的稳定。本文经过 4个支护方案的设计与仿真分析 ,提出了较为理想的支护方案 ;该支护方案已为工程实际所采用 ,取得了良好的实际效果。
Based on the basic principle of the new Austrian law, this paper carried out the finite element numerical simulation and optimization design of the retaining design scheme for the section F3 of # 1 spillway tunnel in Zipingpu Irrigation Project. Analysis results show that, according to conventional support can not guarantee the stability of surrounding rock and timbering. After the design and simulation analysis of the four support schemes, this paper presents an ideal support scheme; the support scheme has been adopted by the engineering practice, and has achieved good practical results.