摘要
介绍了香丽高速虎跳峡金沙江大桥香格里拉岸隧道式锚碇1∶10缩尺模型试验过程。试验表明,在主缆拉力作用下,锚碇系统的变形以锚塞体携裹着围岩一起沿拉力方向移动,混凝土与围岩之间无相对滑动,后部1/3长度范围的围岩分担了不少于60%的主缆拉力,中隔墩岩体变形较大,锚碇总的变形和承载能力满足规范要求。
The 1∶ 10 scale model experiment process of tunnel-type anchorage on the bank of Shangri-La of the Jinsha River Bridge of the Tiger Leaping Gorge of Shangri-La to Lijiang Highway was introduced in this paper. The experiment indicates that the deformation of anchorage under the tension effect of main cable moves along the tension direction with the anchor body carrying the surrounding rock,there is no relative slide between the concrete and the surrounding rock,the latter 1/3 length of surrounding rock bears no less than 60% tension of main cable,the rock mass of division pier has large deformation,and the total deformation and bearing capacity of anchorage can meet the requirement of the specification.
作者
祁雪梅
张大兵
陶路
QI Xuemei;ZHANG Dabing;TAO Lu(Yunnan Lixiang Expressway Investment and Development Co. , Ltd. , Kunming , Yunnan 650000, China;China Railway Bridge Science Research Institute, Co. , Ltd. , Wuhan, Hubei 430034, China)
出处
《施工技术》
CAS
2018年第13期127-131,147,共6页
Construction Technology
关键词
桥梁工程
悬索桥
隧道式锚碇
试验
承载机理
扩散角
bridges
suspension bridge
tunnel-type anchorage
testing
bearing mechanism
diffusion angle
