| 盾构施工引起的超孔隙水压力解析解 |
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| 引用本文： | 肖立,张庆贺,朱继文,姚海明. 盾构施工引起的超孔隙水压力解析解[J]. 同济大学学报(自然科学版), 2011, 39(2): 194-198. DOI: 10.3969/j.issn.0253-374x.2011.02.007 |
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| 作者姓名： | 肖立 张庆贺 朱继文 姚海明 |
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| 作者单位： | 1. 同济大学,地下建筑与工程系,上海,200092;同济大学,岩土及地下工程教育部重点实验室,上海,200092
2. 上海市第二市政工程有限公司,上海,200065 |
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| 摘 要： | 基于MohrCoulomb屈服准则,在考虑土体的内摩擦角φ的情况下,推导了盾构通过时引起的超孔隙水压力的公式并与φ=0的情况作了比较,表明φ值使得塑性区范围和超孔隙水压力值变大.塑性区的范围和塑性区内超孔隙水压力的主要影响因素是盾构土舱压力,但弹塑性区交界处的超孔隙水压力值为a6ccosφ(a为Henkel系数,c为土的粘聚力),与土舱压力无关.以上海地铁10号线同济大学站—国权路站区间隧道为实例,对此进行现场监测,结果显示解析解与实测值吻合较好;提出开孔释放超孔隙水压力对策,经实践检验非常有效.
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| 关 键 词： | 盾构 MohrCoulomb屈服准则 内摩擦角 超孔隙水压力 解析解 土舱压力 |
| 收稿时间： | 2009-09-28 |
| 修稿时间： | 2010-12-14 |
Analytical Solution of Excess Pore Water Pressure Caused by Shield Tunneling |
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| XIAO Li,ZHANG Qinghe,ZHU Jiwen and YAO Haiming. Analytical Solution of Excess Pore Water Pressure Caused by Shield Tunneling[J]. Journal of Tongji University(Natural Science), 2011, 39(2): 194-198. DOI: 10.3969/j.issn.0253-374x.2011.02.007 |
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| Authors: | XIAO Li ZHANG Qinghe ZHU Jiwen YAO Haiming |
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| Affiliation: | Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education,Tongji University,Shanghai 200092,China;Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education,Tongji University,Shanghai 200092,China;Shanghai No.2 Municipal Engineering Co.,Ltd.,Shanghai 200065,China;Shanghai No.2 Municipal Engineering Co.,Ltd.,Shanghai 200065,China |
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| Abstract: | |
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| Keywords: | shield tunneling Mohr Coulomb yield criterion friction angle excess pore water pressure analytical solutions earth pressure of soil cabin |
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