粉喷桩复合地基承载特性影响因素模拟分析  

Simulation Analysis of Influencing Factors of Load-bearing Characteristics of Composite Foundation of Cement Injection Pile

作　　者：许金江 Xu Jinjiang(Yuncheng Expressway Branch of Shanxi Transportation Holdings Group Co.,Ltd.,Yuncheng 044000,China)

机构地区：[1]山西交通控股集团有限公司运城高速公路分公司,运城市044000

出　　处：《北方交通》2024年第12期50-53,共4页Northern Communications

摘　　要：为合理确定软土地基粉喷桩复合地基加固施工方案,利用有限元软件进行计算分析。对比分析计算结果,可知垫层厚度和弹性模量对路基顶面弯沉和沉降的影响较大;随着垫层厚度和弹性模量的增加,弯沉和沉降值下降,但取值不宜过大;随着桩长增加,路基顶面弯沉和沉降值下降幅度较大。In order to reasonably determine the construction scheme for the composite foundation reinforcement of soft soil foundation cement injection pile,the finite element software is used for calculation and analysis.Through the comparison and analysis of calculation results,it can be seen that the cushion thickness and elastic modulus have a great influence on the deflection and settlement of the top surface of the subgrade.With the increase of cushion thickness and elastic modulus,the deflection and settlement values decrease,but the values should not be too large.With the increase of pile length,the deflection and settlement value of the top surface of the subgrade decrease greatly.

关 键 词：粉喷桩复合地基 承载特性 影响因素 垫层厚度 桩长 

分 类 号：U418.5[交通运输工程—道路与铁道工程]