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拉拔状态下全锚锚杆轴向应力分布规律研究 被引量:1
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作者 任智敏 李义 《山西煤炭》 2010年第2期44-46,共3页
锚杆轴向荷力分布研究是个应关注的课题,由于围岩物理力学性质的复杂性,使得深入到围岩中锚杆的受力情况也变得很复杂,时至今日对锚杆的受力机理仍然认识有限。文章通过拉拔试验得出锚杆轴向力与锚深的关系,锚杆轴向力与外载荷的关系、... 锚杆轴向荷力分布研究是个应关注的课题,由于围岩物理力学性质的复杂性,使得深入到围岩中锚杆的受力情况也变得很复杂,时至今日对锚杆的受力机理仍然认识有限。文章通过拉拔试验得出锚杆轴向力与锚深的关系,锚杆轴向力与外载荷的关系、并首次提出了关键外载、外载阈值、轴向应力传递速率的概念。 展开更多
关键词 拉拔试验 锚杆轴向应力 外载荷
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Simulation and Numerical Analysis on Anti-float Anchor by Field Rock and Soil Tests 被引量:1
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作者 Xiangling Zhou 《International Journal of Technology Management》 2014年第8期13-15,共3页
This paper introduces the stress and deformation of anti floating anchor rod and explained the damage. Through field testing and numerical analysis, the article were studied the displacement and internal force of a ba... This paper introduces the stress and deformation of anti floating anchor rod and explained the damage. Through field testing and numerical analysis, the article were studied the displacement and internal force of a basement tensile anti float anchor, results showed that: the axial force of bolt tension transfer is top-down transfer, axial force decreases, the stress concentrate on the end. When a force is applied to a certain load, end firstly generate damage, but with the deepening of the axial force, it is greatly reduced, which indicates that the anchor force is an effective length, rather than the longer the anchor pullout force is bigger; anchor group effect is a problem that can not be ignored, because the engineering community for its attention degree is not enough, so that the design of anti floating anchor the lack of a reliable basis, the test results can provide a reference for the future design of anti floating anchor. Prestressed anchors in the tension lock, prestressed loss are regularly. 展开更多
关键词 Anti-float anchor Anti-float pile Tensile type anchor
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