双级土工格栅加筋土挡墙现场测试分析

Two-stage Geogrid Reinforced Earth Retaining Wall in-situ Test

本文通过对云南昭通换流站双级土工格栅加筋土挡墙的基底垂直压力、墙面板后不同位置处土压力进行了原型试验,得出基底压力和水平土压力的分布规律。根据条形基础下内外侧压力值的比值系数的变化得出挡墙产生了一定的水平变形。

Through the prototype test of substrate vertical pressure and soil pressure of different position behind the wall of two-stage geogrid reinforced earth wall of converter station in Zhaotong, Yunnan, this article obtained distribution of substrate pressure and horizontal earth pressure. That horizontal deformation may have been caused in the wall is obtained according to the change of ratio of pressure inside and outside under the strip foundation.