Ultimate Resistance of Deep Vertical Anchor in Sand
Ultimate Resistance of Deep Vertical Anchor in Sand
复制标题
沙土中深垂直锚杆的极限阻力
DOI：
10.3208/sandf1972.17.2_52
复制
发表时间：
1977
影响因子：
3.7
通讯作者：
S. Das
中科院分区：
文献类型：
--
作者：
B. Das;G. Seeley;S. Das
摘要 给出了垂直方形锚板在松散、中、密砂中的模型试验结果。极限锚固阻力以无量纲破坏系数 Nq = Pu/γAH 表示。对于浅锚，突破系数随着嵌入率的增加而增加。超过临界嵌入率，当锚充当深锚时，突破系数保持大致恒定。对于松散的沙子，临界嵌入比约为 5，对于密实的沙子，临界嵌入比增加到约 8。将深锚杆实验破裂系数随砂土摩擦角的变化规律与现有理论预测进行了比较。
ABSTRACT Model test results of a vertical square anchor plate in loose, medium and dense sand are presented. The ultimate anchor resistance has been expressed in terms of a nondimensional breakout factor, Nq = Pu/γAH. For shallow anchors, the breakout factor increases with embedment ratio. Beyond the critical embedment ratio, when the anchor behaves as a deep anchor, the breakout factor remains approximately constant. The critical embedment ratio is about 5 for loose sand and increases to about 8 for dense sand. The variation of the experimental breakout factor for deep anchor with the angle of friction of sand has been compared with that predicted by the existing theories.