Analysis and Design of Composite Walls in Underground Substations
Underground substations are generally built in urban areas with tight land and dense surrounding buildings,with deep burial depth and high waterproof requirements,and the composite wall or laminated wall combined with diaphragm wall and interior wall are used for peripheral protection.The laminated wall technology is widely used in existing underground substation projects,but due to its own limitations,it cannot meet the requirements of General Code for Waterproofing of Building and Municipal Engineering for first level waterproofing.This article compares and analyzes the laminated wall and composite wall schemes in 110 kV Gansu underground substation in Shanghai,and conducts stress and economic analysis on different thickness combinations of interior walls and diaphragm wall.The results show that when the composite wall scheme is adopted,the bending moment of the interior wall is smaller,so that more economic reinforcement can be obtained,and the requirements of structural safety and crack control can be met with better economy.
国家科技期刊平台
NSTL
万方数据
