| 失稳坡间桥台基础的加固 |
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| 引用本文： | 高永涛,张怀静,吴顺川,金爱兵,孙金海.失稳坡间桥台基础的加固[J].北京科技大学学报,2006,28(2):104-107. |
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| 作者姓名： | 高永涛 张怀静 吴顺川 金爱兵 孙金海 |
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| 作者单位： | 1. 北京科技大学土木与环境学院,北京,100083
2. 北京建筑工程学院,北京,100044 |
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| 摘 要： | 某高速公路的一座跨路通道桥,接近竣工时发现坡体连同桥台基础出现明显失稳的迹象.为保证通道桥的稳定和运行安全,采用预应力底锚、侧锚、中高压注浆等综合加固措施,对坡体和桥台进行了整体加固.运用FLAC软件对加固结构进行了数值计算,确定了设计参数.工程实践验证该加固措施的有效性.
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| 关 键 词： | 通道桥 桥台 边坡 基础加固 数值模拟 失稳 桥台基础 加固结构 unstable 有效性 验证 工程实践 设计参数 数值计算 软件 FLAC 运用 整体加固 加固措施 综合 中高压注浆 预应力 运行安全 稳定 坡体 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2005-01-17 |
Reinforcement of an unstable abutment-slope |
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| GAO Yongtao,ZHANG Huaijing,WU Shunchuan,JIN Aibing,SUN Jinhai.Reinforcement of an unstable abutment-slope[J].Journal of University of Science and Technology Beijing,2006,28(2):104-107. |
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| Authors: | GAO Yongtao ZHANG Huaijing WU Shunchuan JIN Aibing SUN Jinhai |
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| Abstract: | Located in the northeast of China,there is an overbridge crossing above an expressway.Its right abutment is seated on a rock-masses slope with low carrying capacity.The slope and abutment basis had appeared obvious unstable evidence before completion.For the stability of abutment and slope,accord- ing to the in-situ situation,some effective reinforcement measures were adopted,which include middle-high pressure grouting,pre-stressed anchoring,anti-sliding anchoring,etc.The software of FLAC was used to numerically simulate the reinforced structure,and the design parameters were attained.Engineering prac- tice of the abutment-slope system verified effectiveness of the multi-reinforcement. |
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| Keywords: | overbridge abutment slope basis reinforcement numerical simulation |
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