大型排水隧洞穿越航道影响数值模拟研究  

Numerical simulation study on the influence of large drainage tunnel crossing channel

作　　者：段凯 勒浮兵 DUAN Kai;LE Fubing(Changjiang Survey,Planning,Design and Research CO.LTD,Wuhan 430010,China)

机构地区：[1]长江勘测规划设计研究有限责任公司,武汉430010

出　　处：《水科学与工程技术》2022年第6期49-52,共4页Water Sciences and Engineering Technology

摘　　要：某船闸工程下游排水廊道采用盾构隧洞穿越既有航道,结合施工条件和国内设备情况,选取6条洞径8.7m和4条洞径10.6m隧洞方案进行数值模拟对比研究,分析航道底部变形规律和隧洞支护结构受力情况,考虑航道安全、施工成本和实施过程等因素,推荐6条隧洞方案,相邻2条隧洞同时掘进施工。The downstream drainage gallery of a ship lock project adopts shield tunnel to cross the existing channel.Combined with the construction conditions and domestic equipment,six tunnel schemes with a diameter of 8.7m and four tunnel schemes with a diameter of 10.6m are selected for numerical simulation and comparative study.The deformation law of the channel bottom and the stress of the tunnel support structure are analyzed.Considering the factors such as channel safety,construction cost and actual implementation process,six tunnel schemes are recommended,two adjacent tunnels are excavated at the same time.

关 键 词：排水隧洞 穿越工程 盾构隧洞 航道 

分 类 号：U451.2[建筑科学—桥梁与隧道工程]