Influence of the Drainage in the Reinforced Soil Wall during Seepage Flow
Influence of the Drainage in the Reinforced Soil Wall during Seepage Flow
复制标题
加筋土墙排水对渗流的影响
DOI：
10.1201/b12754-63
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
T. Konami
中科院分区：
文献类型：
--
作者：
M. Kobayashi;K. Miura;T. Konami
通过一系列离心模型试验，研究了渗流作用下多锚式挡土墙的加固机理，并验证了排水作用对多锚式挡土墙性能的影响。结果表明，排水量越大，回填土的剪切变形越小，挡土墙顶面的沉降也越小。即合理的排水构造是防止墙后地下水上升，保持土压力不变而不因孔隙水压力的增加而增加的重要因素。安全系数是指加筋土挡墙抗拔的整体稳定性，而不是每层已安装拉结筋的抗拔稳定性，它是表征此类土体结构沿沿着面破坏时稳定性的重要指标。
A series of centrifuge model tests were carried out to investigate the reinforce mechanism of multi-anchored soil wall during seepage flow, and to verify the contribution of drainage to the performance of such soil structures. It was found that the smaller shear deformation of backfill and the smaller settlement of the top surface of soil wall were observed with the larger drainage. Namely, the appropriate construction of drainage is important to prevent the ground water behind facing wall rising and to keep earth pressure constant without increasing by increase the pore water pressure. The safety factor which means the whole stability of pull-out resistance of reinforced soil wall rather than that of each layer of installed tie-bar, is important to express the stability of such soil structure failed along the slip surface.