甬江沉管隧道运营期接头监测数据安全性分析

谢雄耀; 易成敏; 李伟平; 方勇刚

doi:10.11779/CJGE201912020

甬江沉管隧道运营期接头监测数据安全性分析 English Version

1. 同济大学岩土及地下工程教育部重点实验室,上海 200092;
2. 同济大学土木工程学院地下建筑工程系,上海 200092;
3. 浙江省交通规划设计研究院,浙江杭州 310000

基金项目: 国家重点研发计划项目（2018YFC0809600,2018YFC0809601）

详细信息

作者简介:
谢雄耀(1972— ),男,博士,教授,主要从事地下空间监测施工等方面的教学和科研工作。E-mail: xiexiongyao@tongji.edu.cn。

中图分类号: TU433
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出版历程
- 收稿日期: 2019-02-20
- 发布日期: 2019-12-24

Safety analysis of settlement monitoring data of joints of Yongjiang immersed tube tunnel during operation period

1. Key Laboratory of Geotechnical and Underground Engineering, Ministry of Education, Tongji University, Shanghai 200092, China;
2. Department of Underground Building Engineering, School of Civil Engineering, Tongji University, Shanghai 200092, China;
3. Institute of Transportation Planning and Design of Zhejiang Province, Hangzhou 310000, China

摘要

摘要: 沉管隧道接头的力学性能是其安全运营的关键。通过宁波甬江沉管隧道23 a的运营期接头沉降的监测数据分析,找出了沉管隧道在软土地基中产生的不均匀沉降与沉管隧道接头各种形变的关系,讨论了甬江沉管隧道在23 a运营期间的不均匀沉降的规律。其次,建立GINA止水带的受力模型,计算了由于接头变形导致的GINA止水带受力的问题,并检验了接头止水的安全性。最后,提出了在隧道运营期间,可通过强制位移法利用隧道沉降监测数据对结构进行安全性评估的方法。
- 沉管隧道 /
- 运营期监测 /
- 不均匀沉降 /
- 接头变形 /
- 安全分析
Abstract: The mechanical properties of immersed tunnel joints are the key to their safe operation. By analyzing the monitoring data of joint settlement of Yongjiang immersed tube tunnel in Ningbo for 23 years operation, the relationship between uneven settlement of immersed tube tunnel in soft soil foundation and joint deformation of immersed tube tunnel is found, and the laws and reasons of uneven settlement are analyzed and discussed. The stress model for GINA waterstop is established, the stress of GINA waterstop caused by joint deformation is calculated, and the safety of joint waterstop is checked. Finally, the safety assessment method for the structures by using the settlement monitoring data of the tunnel through the forced displacement method during its operation is put forward.
- immersed tube tunnel /
- operation monitoring /
- uneven settlement /
- joint deformation /
- safety analysis

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参考文献(11)

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