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山东大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (5): 95-101.doi: 10.6040/j.issn.1672-3961.0.2015.420

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预应力悬锚式挡土墙受力特性

张宏博1,2,解全一1,2,岳红亚1,2*,崔琦3,孙润生1,2,王珂1,2   

  1. 1. 山东大学土建与水利学院, 山东 济南 250061;2.山东省路基安全工程技术研究中心, 山东 济南 250061;3.山东高阳建设有限公司, 山东 淄博 255000
  • 收稿日期:2015-12-21 出版日期:2016-10-20 发布日期:2015-12-21
  • 通讯作者: 岳红亚(1990— ),男,山东济宁人,硕士研究生,主要研究方向为挡土墙支护理论. E-mail: 759629600@qq.com E-mail:zhanghongbo@sdu.edu.cn
  • 作者简介:张宏博(1977— ),男,山东金乡人,副教授,博士,主要研究方向为挡土墙支护理论与地基处理.E-mail:zhanghongbo@sdu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(51208284,41372300);山东省科技发展计划资助项目(2013GSF11603)

Mechanical performance of prestressed anchor plate retaining wall

ZHANG Hongbo1,2, XIE Quanyi1,2, YUE Hongya1,2*, CUI Qi3, SUN Runsheng1,2, WANG Ke1,2   

  1. 1.School of Civil Engineering, Shandong University, Jinan 250061, Shandong, China;
    2.Shandong Engineering &
    Technology Research Center for Subgrade Safety, Jinan 250061, Shandong, China;
    3.Shandong Gaoyang Construction Company Limited, Zibo 255000, Shandong, China
  • Received:2015-12-21 Online:2016-10-20 Published:2015-12-21

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摘要： 为了研究不同侧向预应力水平及竖向荷载对预应力悬锚式挡土墙墙背土压力、锚定板板前土压力、墙身剪应力分布特性的影响规律,设计了室内模型试验及数值模型并对悬锚式挡土墙受力特性进行测试与计算分析。研究结果表明:侧向预应力作用下,挡土墙墙背土压力呈抛物线分布并在锚杆处呈现峰值,锚定板板前土压力沿板宽度方向呈“马鞍型”分布并以约35°角向两侧扩展,锚定板板前土压力沿锚索轴向的压缩影响范围约2倍板宽;竖向荷载作用下,挡土墙侧向土压力呈“S”形分布,靠近挡墙底板位置处墙体剪应力急剧增大,应加强该类挡土墙根部配筋设计。结论可为预应力悬锚式挡土墙在公路建设中的推广和应用提供借鉴。

关键词: 预应力, 土压力分布, 墙体剪应力, 悬锚式挡土墙, 锚定板, 上部荷载

Abstract: In order to study the influence of lateral prestressed force and upload on the distribution of earth pressure on the anchor-plate retaining wall and anchor plate and shear stress of wall, a serial of retaining wall model tests and numerical simulation were put forth. The influence law of the different loads to the mechanical features of anchor-plate retaining wall was found. Results showed that, under prestressed force action, the distribution curve of lateral soil pressure of retaining wall was like a parabolic with the peak value around anchored bar. Earth pressure before anchor plate was a saddle distribution along the width of plate with the expanding degree, 35°. In addition, along the axis of prestressed cable, the influence area of earth pressure of anchor plate was about double width of anchor plate. Under upload action, the distribution curve of lateral earth pressure of retaining wall was like an alphabet S curve. There was a big shear stress area near the rooting of retaining wall, where should be strengthened by increasing ratio of reinforcement. Conclusion of this study could provide reference for the population and application of prestressed anchor plate retaining wall in highway engineering.

Key words: anchor plate retaining wall, structure shear stress, upload, anchor plate, earth pressure distribution, prestressed force

中图分类号: 

  • U417.11
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