| 玻璃钢螺旋锚的现场拉拔试验 |
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| 引用本文： | 王钊,王金忠,曾繁平,陈春红.玻璃钢螺旋锚的现场拉拔试验[J].岩土工程学报,2007,29(10):1439-1442. |
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| 作者姓名： | 王钊 王金忠 曾繁平 陈春红 |
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| 作者单位： | 武汉大学土木建筑工程学院；坦萨土工合成材料(武汉)有限公司；武汉大学土木建筑工程学院 湖北武汉430072；湖北武汉430056；湖北武汉430072； |
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| 摘 要： | 回顾了FRP螺旋锚的基本结构型式,介绍现场拉拔试验的设计,完成了无灌浆和灌浆FRP螺旋锚的现场拉拔试验。无灌浆锚杆的最大拉拔力约在10 kN左右,而灌浆锚杆的拉拔力提高到15～20 kN,且拉拔位移较小。拉拔试验结果与现有拉拔力公式的计算值进行比较,并对螺旋锚的结构和施工提出一些改进意见。
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| 关 键 词： | 玻璃钢 螺旋锚 锚杆 灌浆 拉拔力 |
| 文章编号： | 1000-4548（2007）10-1439-04 |
| 修稿时间： | 2006-07-06 |
Field pull out tests of FRP screw anchors |
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| WANG Zhao,WANG Jin-zhong,ZENG Fan-ping,CHEN Chun-hong.Field pull out tests of FRP screw anchors[J].Chinese Journal of Geotechnical Engineering,2007,29(10):1439-1442. |
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| Authors: | WANG Zhao WANG Jin-zhong ZENG Fan-ping CHEN Chun-hong |
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| Affiliation: | 1.School of Civil and Architectural Engineering Wuhan University Wuhan 430072 China 2.Tensar Geosynthetics Wuhan Co. Ltd Wuhan 430056 China |
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| Abstract: | As a new-type of soil anchor,the fiber reinforced plastics(FRP) screw anchor has a lot of attractive properties,such as high strength,light weight,convenient installation,light pollution,high corrosion-resistance and low cost.The basic structure of FRP screw anchor and their field pull-out tests were introduced,and the test results of un-grouted and grouted anchors were presented.The maximum pull out force of the grouted anchors was about 15～20 kN with less pull out displacement compared with that of un-grouted ancthors,whose pull out force was about 10 kN.The pull out forces of both grouted and un-grouted anchors were compared with those obtained from design formulas.Finally,some ideas were put forward to improve the design and construction of FRP screw anchors. |
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| Keywords: | FRP screw anchor anchor rod grouting pull out force |
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