| 海底盾构隧道最小覆土厚度选取探讨 |
| |
| 引用本文： | 李云鹏,乔国龙,李旭辉,温俊昇,伍浩.海底盾构隧道最小覆土厚度选取探讨[J].土木工程学报,2020,53(Z1):168-173. |
| |
| 作者姓名： | 李云鹏 乔国龙 李旭辉 温俊昇 伍浩 |
| |
| 作者单位： | 1. 深圳大学土木与交通工程学院，广东深圳518060；2. 广东粤海珠三角供水有限公司，广东广州511458；
3. 深圳大学滨海城市韧性基础设施教育部重点实验室，广东深圳518060 |
| |
| 摘 要： | 覆土厚度的选取与海底隧道的安全与造价息息相关，是水下隧道纵断面线路设计的主要参数之一。目前对于最小覆土厚度的确定方法我国还没有一个统一的准则。文章针对珠江三角洲水资源配置工程狮子洋段盾构隧道覆土厚度选取问题，结合国内外海底隧道的相关工程案例，通过三种理论模型分析研究了覆土厚度的取值范围，并利用有限元数值计算方法对理论分析结果进行验证。结果表明：理论模型中，改进计算方法和修正考虑注浆力计算法计算结果更加合理，得到了该海底盾构隧道最小覆土厚度为18m左右。
|
| 关 键 词： | 大直径泥水平衡盾构 工程类比法 最小覆土厚度 解析解 数值模拟 |
The selection of minimum overburden thickness of subsea shield tunnel |
| |
| Li Yunpeng Qiao Guolong Li Xuhui Wen Junsheng Wu Hao.The selection of minimum overburden thickness of subsea shield tunnel[J].China Civil Engineering Journal,2020,53(Z1):168-173. |
| |
| Authors: | Li Yunpeng Qiao Guolong Li Xuhui Wen Junsheng Wu Hao |
| |
| Affiliation: | 1. College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China；
2. Guangdong GDH Pearl River Delta Water Supply Co. ，Ltd. ，Guangzhou 511458，China；
3. Key Laboratory of Coastal Urban Resilient Infrastructures (MOE), Shenzhen University，Shenzhen 518060，China |
| |
| Abstract: | The selection for overburden thickness is closely related to the safety and cost of the subsea tunnel, which is one of the main parameters of the design of the longitudinal section of the underwater tunnel. At present, there is no unified criterion for determining the minimum overburden thickness in China. Aiming at the selection of the thickness of the shield soil in the Shizi yang section of the Pearl River Delta's Water Resources Allocation Project, and combined with the relevant engineering cases of subsea tunnels at home and abroad, the value range of the soil thickness is studied through three kinds of theoretical model analysis. Finally, the finite element numerical calculation method is used to verify the results. The research shows that in the theoretical model, it is more reasonable to consider the calculation method of the soil shear force and minimum overburden thickness during grouting calculation method, and the minimum overburden thickness of the underwater tunnel—18 m is obtained. |
| |
| Keywords: | large diameter slurry pressure balanced shield engineering analog method minimum overburden thickness analytical solution numerical simulation |
|
| 点击此处可从《土木工程学报》浏览原始摘要信息 |
|
点击此处可从《土木工程学报》下载全文 |
