BEARING PLATFORM EXCAVATION TECHNOLOGY OF SOUTH TOWER FOR YANGLUO RIVER BRIDGE

机译：仰光河桥南塔轴承平台挖掘技术

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Bearing platform excavation is an important part of the bridge construction. Supported by Yangluo Yangtze River Highway Bridge Engineering, this paper introduced pile cap, cap structure, geological and hydrological conditions of South Tower. Through the analysis of Cone Penetration Tests (CPT), groundwater level and permeability coefficient of sub-clay, play-lock insert sheet pile cofferdam is compared to fenderless excavation technique, and based on comprehensive consideration of cost, time, risk and other factors, large excavation construction program is determined with the risk of the project and a detailed scheme accompanied with construction techniques is put forward. Furthermore, the methods and sequence of earth excavation pit are presented in this paper, and optimal control is dynamically operated during construction process besides orderly organization. Several construction problems are solved, the difficulties of bottom unearthed are solved through the ultra-dug excavation pit bottom technology, the high cost and low progress of original two slope spray anchor is solved by the way of direct placement of C20 concrete and mixed into the early strength agent .The successful excavation technology not only provided a guarantee to following Yangluo Bridge construction period of, but also provide a reference for other similar projects.

机译：轴承平台挖掘是桥梁施工的重要组成部分。本文推出了阳洛长江公路桥梁工程，介绍了南塔桩帽，帽结构，地质和水文条件。通过对锥形渗透试验（CPT）的分析，地下水位和亚粘土的渗透系数，将戏锁插入薄板围堰与无骨折开挖技术进行比较，并基于综合考虑成本，时间，风险等因素，大型挖掘施工计划是根据项目的风险确定的，提出了伴随施工技术的详细方案。此外，本文介绍了地球挖掘坑的方法和序列，除了有序的组织之外，在施工过程中动态地操作最佳控制。解决了几个施工问题，通过超挖掘挖掘坑底部技术解决了底部出土的困难，原始两个斜坡喷雾锚的高成本和低进展通过直接放置C20混凝土并混合到其中早期强度代理。成功的挖掘技术不仅为阳罗桥梁建设期之后提供了保证，而且还为其他类似项目提供了参考。

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《International conference on transportation engineering》|2011年||共6页
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作者
ZHU Guohua;
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中图分类交通运输经济;
关键词
bearing platform; sloped excavation; cone penetration test; construction optimization;

机译：轴承平台;倾斜的挖掘;锥形渗透试验;建筑优化;

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BEARING PLATFORM EXCAVATION TECHNOLOGY OF SOUTH TOWER FOR YANGLUO RIVER BRIDGE

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