不同本构模型下建筑荷载对近邻地铁的沉降影响分析
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国家科技支撑计划资助项目(2006BAJ27B04);北京市科技计划资助项目(Y0605010040821,Z161100001216011)


Settlement analysis of metro tunnel caused by building load under different constitutive model
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    摘要:

    针对高层建筑施工对近邻地铁隧道产生的影响,采用MC模型及CY模型两种土体本构模型,预测分析新建高层建筑荷载对紧邻地铁区间隧道及周边地表的沉降影响。结果显示,在计算参数均相同的条件下,两种本构模型得到的建筑荷载对周边土体的影响范围是一致的,但是该影响范围内的地表及隧道结构竖向沉降差异较大;根据工程经验,认为CY模型更符合真实情况。

    Abstract:

    Urban construction and the development of underground intersection have influence on the normal operation of the subway tunnel. The MC model and the CY model were used to predict and analyses the influence of the new high-rise building load on the settlement of the tunnel adjacent to the subway tunnel. The calculation results show that the two models are consistent with the influence of the building load on the surrounding soil, but it has a great difference between the influence range of the surface and the tunnel structure vertical settlement under the condition of the same other parameters. According to previous engineering experience, CY model is more consistent with the actual.

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张昊,王法,韩煊,吕连勋.不同本构模型下建筑荷载对近邻地铁的沉降影响分析[J].河北工程大学自然版,2016,33(4):33-38

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  • 收稿日期:2016-06-16
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  • 在线发布日期: 2016-12-28
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