铁道科学与工程学报2017，Vol.14Issue(8)：1735-1742,8.
悬索桥隧道锚承载力的室内模型试验研究
Laboratory model test study on bearing capacity of tunnel anchorage of suspension bridge
摘要
Abstract
The bearing mechanism of the tunnel anchorage of suspension bridge is the key problem in the research of tunnel anchor. According to the comprehensive research conclusion and experience of engineering practice, the indoor model tests based on similarity theory was carried out which considered the main factors affecting the bearing capacity of the anchor tunnel, including anchorage size, anchorage depth and rock conditions. Through the observation of the stress and deformation of the anchor body and the surrounding rock of the tunnel anchor, the two aspects of the experimental phenomena and data analysis were studied. The test results show that the tunnel anchor pullout capacity of surrounding rock is most sensitive to the change of rock conditions, followed by the anchorage depth, while it is not sensitive to the anchorage length. According to the failure process of the model test, the failure of the tunnel anchor can be summarized into two typical failure modes. The experimental results provide the basis for the design and construction of the project, and the experimental results have accumulated experience for the further application of the tunnel anchor in the project.关键词
隧道锚/室内模型/承载力/敏感性/破坏模式Key words
tunnel anchorage/indoor model/bearing capacity/sensitivity/failure mode分类
交通工程引用本文复制引用
文海,廖明进,张富贵..悬索桥隧道锚承载力的室内模型试验研究[J].铁道科学与工程学报,2017,14(8):1735-1742,8.基金项目
云南省交通科技项目(云交科2014(A)01) （云交科2014(A）
