列车荷载作用下机械法联络通道-隧道结构响应

何邦亮; 丁修恒; 郎志超; 郑明飞; 熊勇林; 朱瑶宏

doi:10.11779/CJGE2019S2044

列车荷载作用下机械法联络通道-隧道结构响应 English Version

1. 中铁上海工程局集团有限公司,上海 200436;
2 宁波大学岩土工程研究所,浙江宁波 315211

基金项目: 国家自然科学基金项目（51778303）

详细信息

作者简介:
何邦亮(1982— ),男,高级工程师,主要从事地下工程方面的科研和施工工作。E-mail：1036963607@qq.com。

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出版历程
- 收稿日期: 2019-04-28
- 发布日期: 2019-07-19

Dynamic response of different connection forms of mechanical connection tunnels under train loads

1. Shanghai Civil Engineering Co., Ltd. of CREC, Shanghai 200436, China;
2. Institute of Geotechnical Engineering, Ningbo University, Ningbo 315211, China

摘要

摘要: 机械法联络通道作为一种新型施工工艺,接头处的连接形式采用钢板焊接而成,焊接工艺在动力荷载作用下容易产生疲劳损伤破坏。针对接头处的问题,通过有限元模拟研究了列车荷载对于不同连接形式下主隧道与联络通道上的加速度响应及位移响应情况。研究结果表明：对于位移响应半刚性连接形式下接头能吸收一部分位移传递,有利于隧道整体结构的安全,刚性接头则整体性较强,位移不会出现突然骤减的情况;半刚性接头能削弱加速度的传递,而刚性接头整体性强,对加速传递效率高。
- 列车荷载 /
- 连接形式 /
- 联络通道 /
- 有限元模拟 /
- 接头
Abstract: As a new type of construction process, the mechanical connection channel is welded by steel plate, and the welding process is prone to fatigue damage under dynamic loads. According to the problem of the joint, the acceleration response, displacement response and communication channel under different connection modes are studied by using the finite element simulation. For the displacement response semi-rigid connection, the joint can absorb part of the displacement transmission, which is beneficial to the safety of the overall structure of the tunnel. The rigid joint is more integral and the displacement does not suddenly drop. The semi-rigid joint can weaken the transmission of acceleration, while the rigidity of the rigid joint is strong, and the acceleration transmission efficiency is high.
- train load /
- connection form /
- contact channel /
- finite element simulation /
- joint

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参考文献(7)

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