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浙江大学学报(工学版)
浙江大学学报(工学版)
土木工程、建筑工程     
考虑注浆圈作用水下隧道渗流场解析解
应宏伟, 朱成伟, 龚晓南
浙江大学 滨海和城市岩土工程研究中心,软弱土与环境土工教育部重点实验室,浙江 杭州 310058
Analytic solution on seepage field of underwater tunnel considering grouting circle
YING Hong wei, ZHU Cheng wei, GONG Xiao nan
Research Center of Coastal and Urban Geotechnical Engineering, MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education, Zhejiang University, Hangzhou 310058, China
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摘要：

总结水下隧道衬砌外水压力以及隧道涌水量的理论研究,采用镜像法构造一个虚拟源,与水下隧道形成“源汇”系统.将半无限实际渗流场转化为2个无限虚拟渗流场的叠加,推导水下大埋深隧道孔隙水压力以及隧道涌水量的解析解.该解在保证精确性的同时,能考虑注浆圈以及衬砌的作用.在毛洞情况下,本文解退化到古德曼方程以及Harr解,验证了本文解的正确性.采用该解对隧道工程实例进行分析,和已有解进行比较,进一步验证本文解的合理性.发现当埋深增加或者注浆圈抗渗性变差时,已有解和本文解结果差距变大.指出增加注浆圈的抗渗性,可以有效地降低隧道涌水量及衬砌外水头,并发现隧道涌水量及衬砌外水头和隧道埋深近似呈线性增加关系.
Abstract:

Summarize the research about the water pressure around the lining and the water inflow into the tunnel. A virtual source was constructed using the method of images, which formed a “sourcecollection” system together with the under water tunnel. This method can transform the semiinfinite seepage field in reality into the superposition of two virtual infinite ones. The analytic solutions of water pressure around lining and water inflow were derived, considering the effects of the grouting circle and the lining of the tunnel. The solutions could degenerate to the classical Goodman free inflow equation and the hydraulic Harr solution at the condition of unlined tunnels, and were compared with the existing solutions by analyzing two tunnel cases. The study results indicate that the difference between the existing solution and our solution is more significant with a bigger tunnel burial depth or worse grouting circle condition. It is also found that the water inflow and the hydraulic head outside of the lining decrease efficiently with better grouting circle condition. Moreover, the water inflow and the hydraulic head outside of the lining have an approximately linearly increase with the burial depth of the tunnel.
出版日期: 2016-06-01
:  TU 431  
基金资助:

国家自然科学基金资助项目（51278462,51338009）.
作者简介: 应宏伟（1971—）,男,副教授，从事岩土工程方面的教学和科研工作. ORCID: 0000000320796504. E-mail: ice898@zju.edu.cn
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引用本文:

应宏伟, 朱成伟, 龚晓南. 考虑注浆圈作用水下隧道渗流场解析解[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008973X.2016.06.002.

YING Hong wei, ZHU Cheng wei, GONG Xiao nan. Analytic solution on seepage field of underwater tunnel considering grouting circle. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008973X.2016.06.002.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008973X.2016.06.002    或    http://www.zjujournals.com/eng/CN/Y2016/V50/I6/1018

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