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张冬梅, 黄宏伟, 杨峻. 衬砌局部渗流对软土隧道地表长期沉降的影响研究[J]. 岩土工程学报, 2005, 27(12): 1430-1436.
引用本文: 张冬梅, 黄宏伟, 杨峻. 衬砌局部渗流对软土隧道地表长期沉降的影响研究[J]. 岩土工程学报, 2005, 27(12): 1430-1436.
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ZHANG Dongmei, HUANG Hongwei, YANG Jun. Influence of partial drainage of linings on long-term surface settlement over tunnels in soft soils[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(12): 1430-1436.
Citation: ZHANG Dongmei, HUANG Hongwei, YANG Jun. Influence of partial drainage of linings on long-term surface settlement over tunnels in soft soils[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(12): 1430-1436.
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衬砌局部渗流对软土隧道地表长期沉降的影响研究

Influence of partial drainage of linings on long-term surface settlement over tunnels in soft soils

    摘要
  • 摘要: 软土隧道地表长期沉降特性与隧道的渗透性以及周围土体的时效特性密切相关。在综合考虑隧道的局部渗透性以及土体时效特性的条件下,采用数值模拟的方法,对隧道长期性态发展过程中衬砌局部渗流对地表沉降、沉降槽及地层损失的影响进行了分析,在此基础上对上海地铁2号线某区间隧道长期沉降的发展进行了预测和比较。

     

    Abstract: The drainage condition combining with the time-dependent properties of the surrounding soil played an important role in the evolution of long-term surface settlement over tunnels in soft soils.The influence of partial drainage on the development of long-term surface settlements and settlement troughs as well as ground loss was studied with numerical simulation considering the time-dependent stress-strain behavior of the soft soils.A case study was finally presented based on the metro line No.2 in Shanghai.

     

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