预应力锚索锚固长度对锚固效果的影响试验研究

宋锦秋; 柳建国; 纪洪广

doi:10.13204/j.gyjz201306020

预应力锚索锚固长度对锚固效果的影响试验研究

doi: 10.13204/j.gyjz201306020

1.
1. 北京科技大学,北京100083;
2.
2. 中冶建筑研究总院有限公司,北京100088

详细信息

作者简介:
第一作者：宋锦秋, 女, 1987年出生, 硕士研究生。电子信箱：rach_qer@126.com

中图分类号: TU43
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- 文章访问数: 132
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- 被引次数: 0
出版历程
- 收稿日期: 2013-04-07
- 刊出日期: 2013-06-20

FIELD INVESTIGATION ON THE EFFECT OF FIXED LENGTH OF PRE-STRESSED CABLES

1.
1. Beijing University of Science and Technology,Beijing 100083,China;
2.
2. Central Research Institute of Building and Construction Co.Ltd,MCC Group,Beijing 100088,China

摘要

摘要: 实际工程中，影响锚索极限承载力的因素众多，由于设计计算方法不成熟、施工工艺不够先进等原因，导致理论锚固力与工程实测锚固力存在差异。通过对实际工程中拉力型锚索极限拉拔试验得到的拉力-位移关系的分析，得出在试验土体条件下的锚固长度与有效因子的关系曲线。提出了工程实际中影响锚固力的因素。
- 破坏性拉拔试验 /
- 锚固长度 /
- 黏结应力 /
- 有效因子
Abstract: In actual projects, there are many factors which may influence the ultimate bearing capacity of ground anchors.Some problems like defects in calculation method and constuction process would result in discrepancy between theorical an chorage force and actual force.Some investigation tests of pre-stressed cables were done to obtain the relationships between the axial force and the axial displacement of the prestressed cables;and to acquire how the fixed length affects the bond stress.It was also proposed some problems that easily happened in actual projects.
- destructive tension test /
- fixed length /
- bond stress /
- efficient factors

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参考文献(10)

[2] 尤春安,战玉宝．预应力锚索锚固段的应力分布规律及分析[J].岩石力学与工程学报,2005,24(6):925－928.

王树仁,何满潮,金永军．拉力集中型与压力分散型预应力锚索锚固机理[J].北京科技大学学报,2005,27(3):278－282.

[3] 韩军,陈强,刘元坤,等．锚杆灌浆体与岩(土)体间的粘结强度[J].岩石力学与工程学报,2005,24(19):3482－3486.

[4] 张智浩,杨松,马凛．压力分散型锚杆在基坑支护工程中的应用[J].工业建筑,2007,37(4):9－12.

[5] Anthony D B,Chris R W.Recent Advances in Ground Anchor?and Ground Reinforcement Technology with Reference to the?Development of the Art [M].

[6] Ostermayer H,Scheele F.Research on Ground Anchors in?Noncohesive Soil [C]//Proceedings of the 19 th International?Conference on Soil Mechanics and Foundation Engineering.The?Japanese Society of Soil Mechanics and Foundation Engineering,1977.

[7] Barley A D.Anchors in Theory and Practice[C]//International?Symposium on Anchors in Theory and Practice .Saltzburg:1995.

[8] CECS 22∶2005岩土锚杆(索)技术规程[S].

[9] 程良奎,李象范．岩土锚固土钉喷射混凝土原理、设计与应用[M].北京:中国建筑工业出版社,2008.

[10] Woods P I,Barkhordari K.The Influence of Bond Stress?Distribution on Ground Anchor Design[C]//ICE Conference and?Anchored Structures,London:1997．

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