摘要
山区地域削山填谷后作为建筑场地使用时,由于回填土厚度不同,极易产生不均匀沉降,影响上部建筑结构的使用。该文以十堰基地迁建项目为依托,利用Midas GTS有限元软件分别对采用分能级强夯+DJP桩+注浆的变刚度复合地基处理和采用强夯进行同刚度地基处理的效果进行数值分析对比研究。计算结果表明变刚度复合地基处理相比于同刚度强夯处理,地基整体沉降和差异沉降均明显下降,是一种适用于削山填谷区域的地基处理组合工艺。
When the mountainous area is used as the construction site after cutting mountain and filling valley,due to the different thickness of backfill,it is easy to produce uneven settlement,which affects the using of superstructure.Based on the relocation project of Shiyan Base,the Midas GTS finite element software is used to carry out numerical analysis and comparative study on the effect by variable stiffness composite foundation treatment with energy level dynamic compaction+DJP pile+grouting and the same stiffness foundation treatment with dynamic compaction.The calculation results show that compared with the some rigidity dynamic compaction treatment,the overall settlement and differential settlement of foundation by variable stiffness composite foundation treatment are obviously reduced,which is a combined technology suitable for the area of cutting mountains and filling valleys.
作者
王发玲
刘佑祥
刘忠富
郭运
龙晓东
孙盼
张亮
Wang Faling;Liu Youxiang;Liu Zhongfu;Guo Yun;Long Xiaodong;Sun Pan;Zhang Liang(Central South Survey Design Institute Group Co.,Ltd.)
出处
《勘察科学技术》
2019年第6期14-18,共5页
Site Investigation Science and Technology
关键词
变刚度
复合地基
不均匀沉降
有限元分析
variable-stiffness
compound ground
uneven settlement
finite element analysis
作者简介
王发玲(1987-),女,工程师,主要从事岩土工程的设计研究。
