| 考虑盾构施工扰动土体固结的地层沉降计算 |
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| 引用本文： | 刘纪峰,陶龙光,刘波.考虑盾构施工扰动土体固结的地层沉降计算[J].辽宁工程技术大学学报(自然科学版),2009,28(5). |
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| 作者姓名： | 刘纪峰 陶龙光 刘波 |
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| 作者单位： | 1. 三明学院,土木建筑工程系,福建,三明,365004;中国矿业大学(北京)力学与建筑工程学院,北京,100083
2. 中国矿业大学(北京)力学与建筑工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为解决以往盾构隧道的地层沉降计算不考虑施工扰动土体的固结沉降对总沉降的影响而使得计算结果偏小的问题,通过对盾构隧道施工致周边土体的扰动机理分析,指出盾构上方一定范围内的被扰动土体为欠固结土,应用欠固结士的沉降计算理论,得出了考虑盾构扰动周边土体固结影响的隧道沉降计算修正方法.与工程实测值的对比结果表明,地层沉降计算修正方法的计算结果更符合工程实际,工程应用上偏于安全,该成果对于盾构隧道施工的地层沉降预测与控制具有一定的参考价值.
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| 关 键 词： | 盾构施工 扰动土体 固结 地层沉降 计算 |
Calculation on shield tunneling-induced ground settlement in terms of consolidation of boundary disturbed soil |
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| LIU Jifeng,TAO Longguang,LIU Bo.Calculation on shield tunneling-induced ground settlement in terms of consolidation of boundary disturbed soil[J].Journal of Liaoning Technical University (Natural Science Edition),2009,28(5). |
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| Authors: | LIU Jifeng TAO Longguang LIU Bo |
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| Institution: | LIU Jifeng1,2,TAO Longguang2,LIU Bo2(1.Department of Civil Engineering and Architecture,Sanming University,Sanming 365004,China,2.School of Mechanics & Civil Engineering of China University of Mining & Technology,Beijing 100083,China) |
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| Abstract: | Traditional analytical solutions for shield tunneling-induced ground settlement do not account for the consolidation of boundary disturbed soil.The analysis on the mechanism of shield tunneling induced boundary soil disturbance reveals that the soil near the shield-disturbed zone is under-consolidated soil.Based on the consolidation theory of under-consolidated soil and the traditional analytical solutions,a new shield tunneling-induced ground settlement calculation method is proposed,which accounts for the... |
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| Keywords: | shield tunneling construction disturbed soil consolidation ground settlement calculation |
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