| 不同施工工况下双圆盾构引起的土体沉降研究 |
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| 引用本文： | 魏纲,朱奎,陈伟军.不同施工工况下双圆盾构引起的土体沉降研究[J].岩土工程学报,2011,33(3):477. |
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| 作者姓名： | 魏纲 朱奎 陈伟军 |
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| 作者单位： | 1. 浙江大学城市学院，浙江 杭州 310015；2. 温州市瓯海区建设工程施工安全监督站，浙江 温州 325000 |
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| 基金项目： | 国家自然科学基金项目(51078332); 浙江省自然科学基金项目(Z1100016) |
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| 摘 要： | 采用随机介质理论，推导出双圆盾构隧道施工时正常工况和旋转工况下由于土体损失引起的土体沉降计算公式。算例分析表明：本文方法地面沉降预测结果与实测值比较吻合；旋转工况下双圆盾构隧道施工引起的土体沉降曲线呈不对称，最大沉降值出现在向下旋转一侧，能较好的解释实测地面沉降曲线不对称的原因。在相同土体损失率时，与正常工况相比，旋转工况产生的最大沉降量变小，但沉降槽宽度变大。两者引起的土体沉降沿深度变化规律也有区别。
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| 关 键 词： | 双圆盾构 隧道 土体沉降 随机介质理论 |
Ground settlement induced by double-O-tube shield tunneling under different construction conditions |
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| WEI Gang,ZHU Kui,CHEN Wei-jun.Ground settlement induced by double-O-tube shield tunneling under different construction conditions[J].Chinese Journal of Geotechnical Engineering,2011,33(3):477. |
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| Authors: | WEI Gang ZHU Kui CHEN Wei-jun |
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| Affiliation: | 1. Zhejiang University City College, Hangzhou 310015, China; 2. Ouhai Construction Safety Supervision Station of Wenzhou, Wenzhou 325000, China; 3. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; |
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| Abstract: | The formulae for calculating the soil settlement induced by double-O-tube shield tunneling under the normal and rotated construction conditions are derived by use of the stochastic medium theory.The case studies show that the predicted surface settlements are in good agreement with the observed ones.The soil subsidence curve induced by double-O-tube shield tunneling under rotated construction condition is asymmetric,the maximum value appears at the downward rotation side,and it can be explained well why the... |
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| Keywords: | double-o-tube shield tunnel ground settlement stochastic medium theory |
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