锚定板影响区域的研究与分析

Research and Analysis on the Influence Area of Anchor Plate

锚定板的抗拔力是由土的抗剪强度、拉杆与土体间摩檫力决定.锚定板所处位置、拉杆的长度、板的尺寸、板的刚度、板摩阻力决定锚定板抗拔承载力.大量的试验资料和理论分析得知决定锚定板抗拔力大小的主要因素为:锚定板的埋设深度、板的大小、土体的容重和内摩擦角.本文通过理论分析和数值模拟竖向受力锚定板,得出其主要因素对影响区域的受力规律,得到最优解及最佳支护方案.

The tensile strength of the anchored plate is composed by the shear strength of the soil and the friction force between the steel bar and the soil. The position of the anchoring plate,the length of the pull rod,the length and width of the plate,the stiffness of the plate and the friction resistance of the plate determine the uplift capacity of the anchored plate. A large number of experimental data and theoretical analysis determine the main factors that determine the anchorage plate＇s pullout resistance： the embedment depth of the anchor plate,the size of the plate,the bulk density and the internal friction angle of the soil. Through theoretical analysis and numerical simulation of vertical anchored plate,the main factors affecting regional stress rule,the optimal solution can be obtained and the best supporting scheme.