散体岩土中涵管暗埋法工程研究

AN UNDERGROUND OPERATING METHOD OF CULTVET PIPES IN LOOSE ROCK-SOIL IN URBAN DISTRICTS

结合所进行的两例散体岩土中涵管暗埋法工程科研实例，详细介绍了采用顶管法及整体托槽锚杆桩基础开挖的施工方案、顶管参数确定及顶管施工方法。其工程经验，可供相关条件下城市地下工程及其它井巷工程参考。

A special tunnel driving method-shield support-pipe jacking was applied in the construction of the culvert pipelines under both the living quarters of a power station and a highway. Each project was accomplished within two months and without disturbing the traffic on the highway and the living order of the residents. This paper presents pipe jacking, supporting chutes and bolt stakes for base excavation, the determination of parameters of pipe jacking, and pipe jacking method. The experience gained provides a basis for similar underground projects.