抗拔锚杆在超高挡土墙中的加筋作用研究
摘要:通过在超高挡土墙中安装水平抗拔锚杆和抗滑块,从而降低挡土墙的截面积。这种加筋方式可以有效地减轻主动土压力。当布置不同形式的抗拔锚杆和抗滑块时,墙后土体应力分布产生大幅的影响,对其水平应力和水平位移进行了数值分析。根据某工程实际情况,计算得出挡土墙背部土体在不同工况下的水平方向应力和位移大小,以验证其安全性,达到减少土体压力的目的。结果表明,在超高挡土墙中,采用3层抗拔锚杆和每层抗拔锚杆上安装2个抗滑块的加筋方式,对挡土墙墙后土体的预加固,增加墙后土体的自身稳定性,削减墙后土体对挡墙的土压力,可以获得最佳的加筋效果。
Abstract:By installing horizontal anti-pulling bolts and anti-sliders in ultra-high retaining walls, the cross-sectional area of the retaining wall can be reduced. This reinforcement method can effectively reduce the active earth pressure. When different forms of anti-pulling bolts and anti-sliders were arranged, the stress distribution of soil behind the wall had a large impact, and the horizontal stress and horizontal displacement were numerically analyzed. According to the actual situation, the horizontal stress and displacement of the soil behind the gravity retaining wall under different working conditions were calculated to verify its safety and achieve the purpose of reducing the soil pressure. The results show that in the ultra-high gravity retaining wall, the best reinforcement effect can be obtained by using 3 layers of anti-pulling bolts and 2 anti-sliders on each layer of anti-pulling bolts. The pre-reinforcement of the soil behind the retaining wall should increase the stability of the soil behind the wall, and reduce the soil pressure of the soil behind the wall to the retaining wall.
中文标题:
抗拔锚杆在超高挡土墙中的加筋作用研究
Reinforcement of Anti-pulling Bolts in Ultra-high Gravity Retaining Wall
作者:
徐书平1,,汪紫璇1,柯芊芊1,陈律2,涂耀1,程杰林3
Xu Shuping1,,Wang Zixuan1,Ke Qianqian1,Chen Lyu2,Tu Yao1,Cheng Jielin3
作者简介:徐书平,男,1965年生,汉族,湖北人,博士,副教授,主要从事岩土工程优化设计与理论研究。E-mail:511109783@qq.com
通讯地址:
1.武汉轻工大学土木工程与建筑学院,湖北武汉 430023 2.武汉正洪岩土工程有限公司,湖北武汉 430000 3.武汉鑫地岩土工程技术有限公司,湖北武汉 430040
1.SchoolofCivilEngineeringandArchitecture,WuhanPolytechnicUniversity,Wuhan430023,Hubei,China 2.WuhanZhenghongRockandSoilEngineeringCo.,Ltd.,Wuhan430000,Hubei,China 3.WuhanXindiGeotechnicalEngineeringTechnologyCo.,Ltd.,Wuhan,430040,Hubei,China
中图分类号:TU433
doi:10.3969/j.issn.1007-2993.2024.02.006
出版物:岩土工程技术
收稿日期:2023-10-23
修回日期:2023-12-18
录用日期:2023-12-25
刊出日期:2024-04-11
关键词:挡土墙,抗拔锚杆,抗滑块,预加固,数值模拟
Key words:retaining walls,anti-pulling bolts,anti-slider,pre-reinforcement,numerical simulation
文档包含图片数量:图片(11)张
文档包含表格数量:表格(8)个
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基金项目:
基金项目:湖北省住建厅2020年度科技计划项目(202018)
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