软土地区地铁隧道不均匀沉降特征及分区控制

狄宏规; 周顺华; 宫全美; 王培鑫; 肖军华

doi:10.11779/CJGE2015S2016

软土地区地铁隧道不均匀沉降特征及分区控制 English Version

同济大学道路与交通工程教育部重点实验室,上海 201804

基金项目: 国家自然科学基金项目（51478353,51008158）; 上海市科; 委重点支撑项目（13231200200）

详细信息

作者简介:
狄宏规（1985- ）,男,博士研究生,主要从事铁道与轨道工程方面的研究。

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出版历程
- 收稿日期: 2015-03-25
- 发布日期: 2015-07-24

Differential settlement of metro tunnels and its zonal control in soft deposits

Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China

摘要

摘要: 基于南京地铁1号线西延线地下段运营后约4年的沉降观测数据,分析其沉降发展的时空变化特征。将西延线工程地质条件、沿线周边邻近建筑工程活动与结构沉降进行对比分析,研究地铁结构产生不均匀沉降的原因。结果表明：运营4年后隧道最大累积沉降达122 mm,沿线形成了4个沉降槽,且沉降槽有向两边扩展的趋势。地铁结构下卧软土层分布不均和周边近距离工程活动是导致西延线结构不均匀沉降的主要原因。针对软土地区地铁隧道的不均匀沉降问题,应结合工程地质条件和周边建筑开发程度,进行分区预控制。
- 地铁隧道 /
- 长期沉降 /
- 不均匀沉降 /
- 分区控制
Abstract: Based on the measured settlement (a period of 4 years after operation) of West Extension Line of Nanjing Metro Line 1, the differential settlement characteristics of this line are analyzed. After 4 years’ operation, the cumulative settlement reaches the maximum value of 122 mm, and 4 settlement troughs are formed along the line and each settlement trough has the trend to be wider. By comparing the cumulative settlement to the geological conditions and the adjacent construction activities along the line, the reasons for the differential settlement of the line are investigated. The results show that the non-uniform distribution of the soft soil layer under the metro tunnel and the adjacent construction activities are the main causes for the differential settlement. For the problem of differential settlement of the metro tunnels in soft soil area, the zonal control of the metro line should be adopted by considering the engineering geological conditions and the development intensity of the surrounding projects.
- metro tunnel /
- long-term settlement /
- differential settlement /
- zonal control

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参考文献(11)

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软土地区地铁隧道不均匀沉降特征及分区控制 English Version

作者简介: 狄宏规（1985- ）,男,博士研究生,主要从事铁道与轨道工程方面的研究。

计量

出版历程

Differential settlement of metro tunnels and its zonal control in soft deposits

期刊类型引用(7)

其他类型引用(14)

计量

出版历程

目录

作者简介:
狄宏规（1985- ）,男,博士研究生,主要从事铁道与轨道工程方面的研究。