摘要
软土因其压缩性强、固结稳定性差等特性,在工程建设前需对地基进行处理,提高上部建筑的稳定性。为研究挤密碎石桩对软土地基的加固效果,本文以某拟建建筑下方的软土地基作为研究对象,通过现场试验及数值模拟等方法,系统分析了软土地基加固方案的适用性及治理效果。研究结果表明,采用挤密碎石桩进行处理后,对软土地基的侧向变形有一定的限制作用;同时,地基沉降量最大值可减小约50%。此外,适当扩大基坑反压区边坡坡脚区域的处理范围,以增强该区域的固脚效果。本研究成果可供类似工程项目的建设提供参考。
Due to its strong compressibility and poor consolidation stability and other characteristics,soft soil requires foundation treatment before engineering construction to improve the stability of the upper structure.To study the reinforcement effect of compacted gravel piles on soft soil foundations,this paper takes the soft soil foundation under a proposed building as the research object,through field experiments and numerical simulations,the applicability and treatment effect of the soft soil foundation reinforcement scheme are systematically analyzed.The research results show that the use of compacted gravel piles for treatment has a certain limiting effect on the lateral deformation of soft soil foundation;At the same time,the maximum settlement of the foundation can be reduced by about 50%.In addition,the treatment range of the slope foot area in the back pressure zone of the foundation pit should be appropriately expanded to enhance the footing fixing effect in this area.The results of this study can provide a reference for the construction of similar engineering projects.
作者
乔信儒
QIAO Xinru(Shenzhen Nanhua Geotechnical Engineering Co.,Ltd.,Shenzhen Guangdong 518000,China)
出处
《北方建筑》
2025年第3期140-143,共4页
Northern Architecture
关键词
挤密碎石桩
数值模拟
现场试验
适用性研究
compacted gravel pile
numerical simulation
on site testing
applicability study
