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CRITICAL LENGTH OF RIGID DENTAL- STRIP REINFORCEMENTS FOR RETAINING WALL
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摘要: 结合带齿筋H-V加筋土挡墙模型试验,在假定加筋土挡墙破裂面的位置及形状的基础上,考虑均布荷载对破裂面的影响,以楔形体的极限平衡理论为基础,推导出在黏着破坏条件下H-V加筋土挡墙筋条临界长度的表达式。探讨齿筋高度以及水平筋间距对挡墙加筋筋条临界长度的影响,提出在相同承载力下更有效的筋材配置方法。结合室内试验,解释H-V加筋土挡墙黏着破坏时的破坏机理。Abstract: According to the experimental data of reinforced retaining wall,the reasonable shape and location of the rupture face of reinforced retaining wall were selected and considering the effect of the uniform load on the rupture face,it was got the formula of the critical length of rigid dental-strip reinforcements used in retaining wall based on the equilibrium method for wedge sliding. The influence of the height of the vertical reinforcing element and that of the vertical spacing of the horizontal reinforcing element on the critical length of the reinforced retaining wall were analyzed. A more effective way of the material used was discussed.
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Key words:
- H-V reinforcement /
- critical length /
- failure surface /
- failure mechanism
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