现代城市轨道交通
現代城市軌道交通
현대성시궤도교통
Modern Urban Transit
2015年
5期
24-27
,共4页
地铁%浅埋暗挖风道%端墙支护%优化分析
地鐵%淺埋暗挖風道%耑牆支護%優化分析
지철%천매암알풍도%단장지호%우화분석
metro%shallow buried tunnel%end wall support%optimization analysis
以青岛地铁3号线中山公园站1号风道工程为依托,通过理论计算与数值模拟相结合的方法,对浅埋暗挖大断面风道端墙进行支护优化分析,提出了全长注浆锚杆+钢筋带的支护方案。研究表明,优化方案的端墙最大变形值减小了19.3%,塑性区主要控制在端墙后方2 m范围内,起到了良好的加固效果。
以青島地鐵3號線中山公園站1號風道工程為依託,通過理論計算與數值模擬相結閤的方法,對淺埋暗挖大斷麵風道耑牆進行支護優化分析,提齣瞭全長註漿錨桿+鋼觔帶的支護方案。研究錶明,優化方案的耑牆最大變形值減小瞭19.3%,塑性區主要控製在耑牆後方2 m範圍內,起到瞭良好的加固效果。
이청도지철3호선중산공완참1호풍도공정위의탁,통과이론계산여수치모의상결합적방법,대천매암알대단면풍도단장진행지호우화분석,제출료전장주장묘간+강근대적지호방안。연구표명,우화방안적단장최대변형치감소료19.3%,소성구주요공제재단장후방2 m범위내,기도료량호적가고효과。
Taking the Zhongshan Park duct 1 works on Qingdao Metro Line 3 as an example, the paper uses the method of theoretical calculation and numerical simulation, and optimizes the analysis of the support structure of the large section duct. The results show that the maximum deformation value of the end wall is reduced by 19.3% by using the optimized option, and the plastic zone is mainly controlled by the end wall in the 2 m range, which has a good effect.