沉管隧道节段接头混凝土剪力键与摩擦力协同抗剪机理试验研究  

Model Test on Mechanism of Shear Resistance Borne by Concrete Shear Key and Friction of Element Joint of the Immersed Tunnel

作　　者：陈富强[1,2] 田唯[1,2] 张永涛[1,2] 翟世鸿[1,2] CHEN Fuqiang;TIAN Wei;ZHANG Yongtao;ZHAI Shihong(Key Laboratory of Large-span Bridge Construction Technology,Ministry of Communications,Wuhan 430040;CCCC Second Harbor Engineering Co.,Ltd.,Wuhan 430014)

机构地区：[1]长大桥梁建设施工技术交通行业重点实验室,武汉430040 [2]中交第二航务工程局有限公司,武汉430014

出　　处：《现代隧道技术》2018年第6期163-169,共7页Modern Tunnelling Technology

摘　　要：文章通过沉管隧道节段接头抗剪机理室内缩尺模型试验,测试了接头在不同接触应力状态及不同剪力键垫层厚度等工况下,混凝土剪力键与接触面摩擦力协同抗剪受力模式。结果表明,摩擦力对接头抗剪强度贡献显著而且可靠。By scale model tests,it proves the mechanism mode of shear resistance borne by friction of contact area and concrete shear key in different contact stress states and cushion thicknesses of shear key.The results show that friction plays a significant role on shear resistance of element joint.

关 键 词：沉管隧道 接头 剪力键 模型试验 

分 类 号：TU458.4[建筑科学—岩土工程] U459.5[建筑科学—土工工程]