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| 青草背长江大桥北锚碇摩阻力试验 | |
| 引用本文： | 刘洋,赵明阶,郑升宝.青草背长江大桥北锚碇摩阻力试验[J].重庆交通大学学报(自然科学版),2011,30(5):911-915. |
| 作者姓名： | 刘洋 赵明阶 郑升宝 |
| 作者单位： | 1. 重庆交通大学水利水运工程教育部重点实验室,重庆400074;水利部岩土力学与工程重点实验室重庆岩基研究中心,重庆400074 2. 重庆交通大学水利水运工程教育部重点实验室,重庆,400074 3. 重庆市交通规划勘察设计院,重庆,401121 |
| 摘 要： | 以涪陵青草背长江大桥北锚碇(重力式锚碇)为例,在北锚碇地基持力层部位进行了原位摩阻力试验,结合室内岩块力学试验成果及地基持力层的工程地质状况,对混凝土(强度等级为C30)与地基持力层基岩接触面的峰值抗剪断强度参数、抗剪强度参数以及比例界限值相对应的抗剪断强度参数进行了详细研究.结合现行规范、规程及行业标准对摩阻系数的不... |
| 关 键 词： | 重力式锚碇 摩阻系数 原位试验 抗剪断 抗剪 |
Test Study on the Friction Resistance of the North Concrete Anchor of Qingcaobei Yangtze River Bridge |
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| LIU Yang,ZHAO Ming-jie,ZHENG Sheng-bao.Test Study on the Friction Resistance of the North Concrete Anchor of Qingcaobei Yangtze River Bridge[J].Journal of Chongqing Jiaotong University,2011,30(5):911-915. | |
| Authors: | LIU Yang ZHAO Ming-jie ZHENG Sheng-bao |
| Institution: | 1.Key Laboratory of Ministry of Education on Hydraulic and Water Transport Engineering,Chongqing Jiaotong University, Chongqing 400074,China;2.Chongqing Rock Foundation Research Center,Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources,Chongqing 400074,China;3.Chongqing Transportation Planning Survey and Design Institute,Chongqing 401121,China) |
| Abstract: | Taking the north concrete anchor(gravity concrete anchor) at Qingcaobei Yangtze River Bridge as an example,in-situ friction resistance test was conducted in the north concrete anchor bearing stratum,based on the indoor test results of rock mechanics and the engineering geological condition of bearing stratum,shear strength parameters and shear parameters of peak value and shear strength parameters of proportional limit value on the surface of concrete(strength grade of C30) and bearing stratum were studied in detail.According to current norms,procedures and industry standards,comprehensive analysis was done.Finally the friction resistance coefficient was 0.58.The value could meet the design requirements.The above test could provide reference for friction resistance test on other gravity concrete anchors. |
| Keywords: | gravity concrete anchor friction resistance coefficient in-situ test shear strength shear |
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