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Study on the Characteristics of Safety Distribution Changing with Buried Depth for Metro Station in Upper-Soft and Lower-Hard Stratum

机译:上下软地层地铁车站安全分布随埋深变化的特征研究

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摘要

The reasonable buried depth of metro station should be investigated for Qingdao with the upper-soft and lower-hard stratum. Strength reduction method has been utilized to study FOS of metro station under different buried depths. As the buried depth increases, the curve of FOS can be divided into three parts as the slowly changed part, the rapidly-increased part, and the gradually-decreased part. Taking FOS = 1 as limitation, the formula of least rock cover thickness has been derived. Based upon the formula, the characteristics of safety distribution changing with buried depth for metro station which behaves as three zones (D-I, E, D-II) have been discovered. Two typical metro stations have been used to verify the research results.
机译:对于青岛,应根据其软,硬地层来研究合理的地铁车站埋深。利用强度折减法研究了不同埋深下地铁车站的FOS。随着埋深的增加,FOS的曲线可分为三个部分:缓慢变化的部分,快速增加的部分和逐渐减小的部分。以FOS = 1为限制,推导了最小岩石覆盖层厚度的公式。根据该公式,发现了地铁站三个区域(D-I,E,D-II)的安全分布随埋深变化的特征。已经使用两个典型的地铁站来验证研究结果。

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  • 来源
    《Advances in civil engineering》 |2018年第9期|6047919.1-6047919.14|共14页
  • 作者单位

    Southwest Jiaotong Univ, Key Lab Transportat Tunnel Engn, Chengdu, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Key Lab Transportat Tunnel Engn, Chengdu, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Key Lab Transportat Tunnel Engn, Chengdu, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Key Lab Transportat Tunnel Engn, Chengdu, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Key Lab Transportat Tunnel Engn, Chengdu, Sichuan, Peoples R China;

    Southwest Jiaotong Univ, Key Lab Transportat Tunnel Engn, Chengdu, Sichuan, Peoples R China;

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