深厚回填土地基强夯加固效果影响因素研究

Study on Influence Factors of Strong Reinforcement Effect of Deep Backfilling Land Bas

影响深厚回填土地基强夯施工效果的因素有很多,基于云南某深厚回填土地基强夯处理项目,采用单一变量原则,运用ABAQUS有限元模型,结合以往经验,逐个分析影响强夯作用的参数,分别研究在同一夯击能下不同夯击次数、不同夯击组合、不同夯锤直径对强夯加固作用的影响,以及在不同夯击能冲下地基土体的竖向位移、竖向应力、水平位移的变化情况。研究成果可为强夯施工提供参考。

There are many factors that affect the effect of deep backfilling land base construction,this paper is based on a deep backfilling land base strong cement processing project in Yunnan,using the single variable principle,using ABAQUS finite element model,combined with past experience,one by one analysis of the parameters affecting the effect of strong earthen crucible,respectively The effect of different hammering times,different hammer combinations,different hammer diameters on the reinforcement effect of strong mounds under the same hammer energy,and the change of vertical displacement,vertical stress and horizontal displacement of different hammers that can wash down the foundation soil are studied. It is hoped that by studying the above factors,we can provide some reference for the corresponding strong construction project,and also accumulate engineering experience for the construction of strong strong-strength method.