| 过江盾构隧道穿越大堤的地层沉降分析及控制 |
| |
| 引用本文： | 张忠苗,林存刚,吴世明,刘冠水,王承山,谢文斌.过江盾构隧道穿越大堤的地层沉降分析及控制[J].岩土工程学报,2011,33(6):977. |
| |
| 作者姓名： | 张忠苗 林存刚 吴世明 刘冠水 王承山 谢文斌 |
| |
| 作者单位： | 1. 浙江大学岩土工程研究所，浙江 杭州310058；2. 杭州庆春路过江隧道有限公司，浙江 杭州 310002 |
| |
| 摘 要： | 对杭州庆春路过江盾构隧道施工引起的地表沉降实测数据进行了分析，采用Peck公式对横向地表沉降曲线进行拟合，并对大堤和其他断面地表沉降进行了对比。分析结果表明：盾构在大堤下施工引起的地表沉降更大，原因是盾构施工对周围土体的扰动、大堤结构的复杂性、堤顶车辆对土体施加的循环荷载及降雨等共同作用使堤顶沉降加剧；验证了Peck公式在杭州地区软土地层中预测盾构施工引起地表沉降的适用性，其中地表沉降槽宽度参数K取值范围为0.25～0.31，地层损失率η的取值范围为0.10%～0.34%；结合工程实践，提出了泥水平衡盾构穿越大堤控制地表沉降的措施。
|
| 关 键 词： | 泥水盾构 越江隧道 地表沉降 大堤 施工控制 |
Analysis and control of ground settlement of embankments in construction of cross-river shield tunnels |
| |
| ZHANG Zhong-miao,LIN Cun-gang,WU Shi-ming,LIU Guan-shui,WANG Cheng-shan,XIE Wen-bin.Analysis and control of ground settlement of embankments in construction of cross-river shield tunnels[J].Chinese Journal of Geotechnical Engineering,2011,33(6):977. |
| |
| Authors: | ZHANG Zhong-miao LIN Cun-gang WU Shi-ming LIU Guan-shui WANG Cheng-shan XIE Wen-bin |
| |
| Affiliation: | 1. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; 2. Hangzhou Qing-chun Road Cross-river Tunnel Co., Ltd., Hangzhou 310002, China; 3. China Railway Tunnel Stock Co., Ltd., Zhengzhou 450000, China; |
| |
| Abstract: | Slurry shield has been widely used in construction of cross-river tunnels.One big challenge is how to traverse the embankment without impacting its regular service and safety.Based on the field settlement monitoring data in construction of Hangzhou Qingchun Road cross-river tunnel,ground settlements induced by shield tunneling under greenfield and the embankment are compared.The results show that the settlements of the embankment are larger,for which for the shielding disturbance to the surrounding soils,th... |
| |
| Keywords: | slurry shield cross-river tunnel ground settlement embankment construction control |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《岩土工程学报》浏览原始摘要信息 |
|
点击此处可从《岩土工程学报》下载全文 |
|
