| 预应力锚索格构梁作用下边坡土中应力分布的室内模型试验研究 |
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| 引用本文： | 刘晶晶,赵其华,彭社琴,马迎娟,张文居.预应力锚索格构梁作用下边坡土中应力分布的室内模型试验研究[J].水文地质工程地质,2006,33(4):9-12. |
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| 作者姓名： | 刘晶晶 赵其华 彭社琴 马迎娟 张文居 |
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| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家专业实验室,成都,610059 |
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| 摘 要： | 预应力锚索格构梁由于其多方面的优点而在工程中得到了广泛的应用。但到目前为止，对预应力锚索格构梁的设计计算还没有提出一个合理的计算模型。本文针对现有计算模型对格梁底部地基反力的分布假设的不足，进行了预应力锚索格构梁的室内模型试验，并对格梁底部土体应力的实际分布情况进行了分析。分析结果显示，土中应力随锚索预应力的增大而增大，且格梁底部的基底反力并非成直线或线性变化，而是与所加锚索的位置有关，因此不能简单地将格构梁看成刚性梁。最后，就本模型试验所存在的不足对今后的研究方向提出了几点建议。
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| 关 键 词： | 预应力锚索格构梁 模型试验 土应力分布 |
| 文章编号： | 1000-3665（2006）04-0009-04 |
| 收稿时间： | 2005-09-26 |
| 修稿时间： | 2006-01-03 |
On indoor model experiment of the action of prestressed anchor-rope and lattice beam on slope soil stress distribution |
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| LIU Jingj-ing,ZHAO Qi-hua,PENG She-qin,MA Ying-juan,ZHANG Wen-ju.On indoor model experiment of the action of prestressed anchor-rope and lattice beam on slope soil stress distribution[J].Hydrogeology and Engineering Geology,2006,33(4):9-12. |
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| Authors: | LIU Jingj-ing ZHAO Qi-hua PENG She-qin MA Ying-juan ZHANG Wen-ju |
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| Institution: | National Specialty Laboratory of C.eohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China |
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| Abstract: | The prestressed anchor-cable and lattice beam is a kind of new complex structure used in slope protection.Because of its various merits,it is widely used in engineering.But till now there isn't a proper calculated model for prestressed anchor-cable and lattice beam's design.Aims at the deficiency of foundation opposite force distribution hypothesis of existed calculated model,the article carries through the indoor model experiment of prestressed anchor-cable and lattice beam,and analyses the actual distribution situation of the soil stress at the bottom of the lattice beam.The results show that the soil stress increases along with the prestressed force and the foundation opposite force isn't straight or linear with the prestressed force but relates to the position of anchor-rope.So the lattice beam can't be regarded as rigid body simply.In the end the article presents several suggestions on research direction according to deficiency of this model experiment. |
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| Keywords: | prestressed anchor-cable and lattice beam model experiment soil stress distribution |
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