明挖基坑内支撑体系施工方案优化及受力分析

摘要

Taking the No. 1 Shield well construction of the East Trunk Canal in South to North Water Transfer Project in Beijing as the example, the paper undertakes the structural optimized design based on the foundation of the former construction scheme, undertakes the structural safety calculation of the support structural system after the optimization, and researches the stress influence of the steel circuit perlin and steel support on the integrated steel structure’ s support system, so as to provide some reference for the reasonable allocation of the steel support.%以北京市南水北调配套工程东干渠一标1号盾构井施工为例，在原施工方案的基础上进行了结构优化设计，并对优化后的支撑结构体系进行了结构安全性检算，研究了深基坑钢围檩、钢支撑对整体钢结构支撑体系的受力影响，为合理布置钢支撑提供参考依据。