钢带支护系统在重载铁路隧道衬砌开裂整治中的应用  

Application of steel band bolting system to treatment of primary liner cracking in existing heavy haul tunnel

作　　者：王定举[1] 

机构地区：[1]朔黄铁路发展有限责任公司,河北肃宁062350

出　　处：《铁道建筑》2015年第5期58-61,共4页Railway Engineering

基　　金：国家科技支撑计划项目(2013BAG20B00)

摘　　要：朔黄铁路寺铺尖隧道有多处衬砌混凝土出现交叉开裂或错牙开裂。结合现场勘查以及无损检测情况,对隧道衬砌开裂原因进行了分析。考虑到朔黄线天窗修状况,提出采用"W钢带+钢丝网+平钢带+锚杆"的联合支护方案进行病害整治。通过工程类比并结合现场条件阐述了该加固方案的设计参数、施工工艺以及施工注意事项。加固方案实施后,取得良好整治效果。According to cross cracks and malocclusion cracks of lining concrete in Shuozhou-Huanghuagang railway Sipujian tunnel, the causes of tunnel lining cracks were analyzed by combing with field investigation and nondestructive testing. Considering the skylight repair status of Shuozhou-Huanghuagang railway, this paper put forward the combined support scheme of ＂W-steel strip ＋ steel wire net ＋ flat steel strip ＋ anchor＂ in order to control the diseases. Through the engineering analogy and based on site conditions, the design parameters, construction technology and matters needing attention of reinforcement scheme are discussed and the feasibility and good treatment effect of the scheme arc verified after the reinforcement scheme implementation.

关 键 词：衬砌病害 加固方案 W钢带支护 方案设计 

分 类 号：U457.2[建筑科学—桥梁与隧道工程]