摘要
锚杆作为深入地层的受拉构件,对边坡,隧道,坝体进行主体加固有重要作用。为了提高土锚承载力,研究了新型十字形多层抗浮土锚抗拔特性,利用FLAC3D软件对长度5.4m、直径为150mm的十字形多层土锚进行抗拔特性模拟,在竖向拉力作用下,对十字形多层土锚和等截面土锚竖直方向的位移、竖向位移云图、锚盘承担的荷载、土锚侧摩阻力等方面进行对比分析。研究结果表示:十字形多层土锚与等截面土锚相比,其极限承载力提高295.34%,锚盘分担荷载最高可达到总荷载的90.5%。
This paper studies the pull-out characteristics of a new cross-shaped multi-layer anti-floating soil anchor.FLAC3D software is used to simulate the pull-out characteristics of a cross-shaped multi-layer soil anchor with a length of 5.4 meters and a diameter of 150mm.The vertical displacement,vertical displacement nebula-graph,load borne by anchor disc and lateral friction resistance of cross-shaped multi-layer soil anchor and soil anchor with equal section are compared and analyzed.The results show that the ultimate bearing capacity of cross-shaped multi-layer soil anchor is 295.34%higher than that of soil anchor with equal section,and the load shared by anchor disc can reach up to 90.5%of the total load.
作者
夏红兵
叶虎
蔡海兵
Xia Hongbing;Ye Hu;Cai Haibing(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan,Anhui 232001,China)
出处
《黑龙江工业学院学报（综合版）》
2021年第11期61-67,共7页
Journal of Heilongjiang University of Technology(Comprehensive Edition)
基金
国家自然科学基金项目“地铁隧道冻结法施工地层三维冻胀融沉的变形机制及预测模型”(项目编号:51778004)。
关键词
多层土锚
位移
FLAC3D
承载力
侧摩阻力
multi-layer soil anchor
Displacement
FLAC3D
The bearing capacity
Pile side friction
