浅埋暗挖输水隧洞的施工可行性和安全性研究  

Study on Water Diversion Tunnels With Shallow Tunnel Construction Method

作　　者：崔炜[1] 付云升[2] 陈重华[1] 韩宇[2] 李雪春[1] 

机构地区：[1]中国水利水电科学研究院,北京100038 [2]北京市水利规划设计研究院,北京100044

出　　处：《南水北调与水利科技》2006年第3期15-19,共5页South-to-North Water Transfers and Water Science & Technology

基　　金：水利部"948"项目(200108)

摘　　要：研究了南水北调中线北京段西四环公路下输水隧洞、施工廊道和岔洞浅埋暗挖法施工的可行性和安全性。使用基于弹塑性增量理论的三维有限元方法分5种工况细致地模拟了预加固、开挖和支护等施工过程,并模拟了混凝土和注浆地层的力学参数随龄期的变化过程,得出了一系列对设计和施工具有重要参考意义的结论。施工期的现场实测资料表明本文的结论与工程实际相符合,是可信的。现在的研究对于公路下软弱地层中的暗涵和岔洞工程施工,也具有一定参考价值。Based on the incremental elastoplastic theory, the construction of 2 water transfer tunnels and the gallery are simulated by the 3-D finite element method. The tunnels and gallery are excavated in gravel layer under the west Beijing Fourth Loop Road. The excavation and support process are analyzed in five construction cases in details, considering the materials properties change with time. Comparing with the construction survey data, the results prove reliable. The conclusions and suggestions are helpful for the engineering design of the similar projects.

关 键 词：南水北调 输水隧洞 岔洞 浅埋暗挖 有限元 

分 类 号：TV54[水利工程—水利水电工程]