| 挡土墙加固工程锚杆预应力损失与补偿 |
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| 引用本文： | 金爱兵,高永涛,蔡美峰,王金安.挡土墙加固工程锚杆预应力损失与补偿[J].北京科技大学学报,2003,25(3):199-202. |
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| 作者姓名： | 金爱兵 高永涛 蔡美峰 王金安 |
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| 作者单位： | 北京科技大学土木与环境工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助课题(No.50074002) |
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| 摘 要： | 以104国道预应力锚杆加固加筋土挡土墙为例，通过数值模拟和实验的方法，讨论了二次补偿张拉解决此类问题的可行性。结果表明，一次张拉一段时间内进行二次补偿张拉，不仅能够有效消除相邻锚杆间的影响，而且还能抑制锚杆的预应力衰减。对于土体预应力锚固工程，其锚杆预应力设计和施工应充分考虑预应力损失，在实际施工中可以应用二次补偿张拉手段解决这一问题。
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| 关 键 词： | 104国道 加筋土挡土墙 预应力锚杆加固 二次补偿张拉 锚杆 预应力损失 预应力补偿 |
| 修稿时间： | 2002年11月4日 |
Prestress losing and Compensate Method in the Reinforcement Project of Retain-ing Wall |
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| JIN Aibing,GAO Yongtao,CAI Meifeng,WANG Jinan
Civil and Environmental Engineering School,University of Science and Technology Beijing,Beijing ,China.Prestress losing and Compensate Method in the Reinforcement Project of Retain-ing Wall[J].Journal of University of Science and Technology Beijing,2003,25(3):199-202. |
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| Authors: | JIN Aibing GAO Yongtao CAI Meifeng WANG Jinan
Civil and Environmental Engineering School University of Science and Technology Beijing Beijing China |
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| Institution: | JIN Aibing,GAO Yongtao,CAI Meifeng,WANG Jinan
Civil and Environmental Engineering School,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | The feasibility of using the second compensate tension to solve the prestress losing problem was analyzed with the methods of numerical analog caculation and experiment according to the reinforcement project of 104 nationl road in Shangdong Province. The result indicated that the reciprocity of the closer anchor and the prestress attenuation can be effectively eliminated using the second compensate tension. It is concluded that the problem of prestress losing shoud be considered in the course of design and construction and be solved with the method of the second compensate tenstion in the soil reinforcement project of prestressed anchors. |
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| Keywords: | reinforced retaining wall second compensate tension prestress anchor reinforcement |
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