摘要
盾构隧道的掘进施工势必会扰动邻近的既有地铁高架桥桥桩,进而导致桥梁及轨道的变形。依托北京某输水隧洞盾构隧道近距侧穿某地铁高架桥工程,采用了ANSYS软件建立三维有限元模型,模拟了盾构隧道施工过程,研究了既有高架桥的变形规律,讨论了隔离桩措施的有效性,为类似工程提供借鉴。
Shield tunneling construction inevitably disturbs adjacent existing metro viaduct piles,leading to deformations in both bridge structures and track alignments.Focusing on a water conveyance shield tunnel project in Beijing involving side-crossing construction near an operational metro viaduct,this study established a three-dimensional finite element model using ANSYS software to simulate shield tunneling processes.The deformation patterns of the existing viaduct were systematically investigated,and the effectiveness of isolation pile countermeasures was critically evaluated.These findings provide valuable references for analogous engineering scenarios.
作者
管禹
马文辉
付春青
杨纬华
李国良
杨敏
Guan Yu;Ma Wenhui;Fu Chunqing;Yang Weihua;Li Guoliang;Yang Min(Beijing Metro Construction Administration Co.,Ltd.,Beijing,China;Beijing Urban Construction Rail Transit Construction Engineering Co.,Ltd.,Beijing,China)
出处
《科学技术创新》
2025年第12期149-152,共4页
Scientific and Technological Innovation
关键词
盾构隧道
侧穿
地铁高架桥
数值模拟
变形规律
控制措施
shield tunneling
side-crossing
metro viaduct
numerical simulation
deformation patterns
control measures
作者简介
管禹(1984-),男,本科,副高级工程师,研究方向:道路与桥梁。
