水工小断面隧洞自行式钢栈桥施工技术  

Construction Technique of Self-propelled Steel Trestle for Small Hydraulic Tunnel

作　　者：黄鹤程[1] 刘勇林[1] 李洪涛[1] 姚强[1] 段会平[2] 余波 

机构地区：[1]四川大学水利水电学院,四川成都610065 [2]中国水利水电第七工程局有限公司,四川成都610081 [3]成都铸信建筑工程技术开发有限公司,四川成都610036

出　　处：《水电能源科学》2015年第2期179-181,196,共4页Water Resources and Power

基　　金：国家自然科学基金项目(51009104)

摘　　要：针对水工小断面隧洞开挖断面小、施工场地狭窄、作业工序多、干扰大等难题,研发了自行式钢栈桥,充分利用混凝土早期强度为栈桥自重及通行载荷提供支撑,配合专用柔性底座及液压控制自行轨道,探索出水工小断面隧洞自行式钢栈桥施工技术,有效解决了洞室开挖与衬砌施工交叉作业等问题,应用于吉牛水电站长22.377km的引水隧洞施工中,保证了工程质量和施工工期,可为类似工程提供借鉴。In view of problems of small hydraulic tunnel,such as small cross section,narrow construction site,complex construction process and interference problems,self-propelled steel trestle is researched.The early stage strength of concrete is fully used to provide support for the trestle sole weight and traffic load.With the special flexible base and hydraulic pressure for control of track,the construction technique of self-propelled steel trestle for small hydraulic tunnel has been explored.So,it solves the problems of excavation and lining construction with cross operation effectively.It has been used to construction of diversion tunnel with length of 22.377 km for Jiniu hydropower station,and guarantees the engineering quality and construction period,which can provide reference for similar projects.

关 键 词：吉牛水电站 小断面隧洞 自行式钢栈桥 衬砌施工 交叉作业 

分 类 号：TV554[水利工程—水利水电工程]