地基处理技术及其工程应用研究  

Research on Foundation Treatment Technology and Its Engineering Application

作　　者：秦鹏飞 张小娜[1] 董菲菲[1] 董慧双 Qin Pengfei;Zhang Xiaona;Dong Feifei;Dong Huishuang(Department of Engineering,Huanghe Science and Technology College,Zhengzhou City,Henan Province 450063)

机构地区：[1]黄河科技学院工学部,河南郑州450063

出　　处：《黄河科技学院学报》2024年第11期49-56,共8页Journal of Huanghe S&T College

基　　金：河南省科技厅重点研发项目(231111322100);河南省高等学校重点科研项目(24A560011);黄河科技学院博士科研启动经费项目(02032695)。

摘　　要：“一带一路”新时代背景下,我国基础设施和城市现代化建设日新月异,地基处理技术得到快速发展和应用。排水固结技术对于处治含水率高、孔隙比大,压缩性和灵敏性显著的软黏土地基,具有优异的效果,真空预压-堆载预压-电渗法联合加固则有利于全面提升软基加固质量;复合地基可有效发挥桩与桩间土的协同作用,有效控制沉降,结合工程应用分析了PCC桩、X型桩和挤扩支盘桩(DX桩)的截面特征与承载机理;阐释了渗透、压密及劈裂注浆的基本理论,并从复合水泥与超细水泥、地聚物、微生物菌液及高聚物材料方面梳理了注浆材料的工程应用进展。地基处理技术的发展进步,必将全面提升工程项目建设的精细化水平和质量。Under the new era of the“Belt and Road”initiative,China's infrastructure and urban modernization are advancing rapidly,and ground treatment technologies have seen swift development and application.The paper points out that drainage consolidation technology has excellent effects on treating soft clay foundations with high water content,large pore ratio,significant compressibility and sensitivity.The combined reinforcement of vacuum preloading surcharge preloading electroosmosis method is beneficial for comprehensively improving the quality of soft foundation reinforcement;Composite foundation can effectively exert the synergistic effect between piles and soil,effectively control settlement,and analyze the cross-sectional characteristics and bearing mechanism of PCC piles,X-shaped piles,and squeezed branch pile(DX pile)in combination with engineering applications;The basic theories of infiltration,compaction,and splitting grouting were explained,and the engineering application progress of grouting materials was summarized from the aspects of composite cement and ultra-fine cement,geopolymer,microbial fluid,and high polymer materials.The development and progress of foundation treatment technology will definitely comprehensively improve the refinement level and quality of engineering project construction.

关 键 词：地基处理 真空预压-化学电渗 桩土复合地基 劈裂注浆 地聚物 

分 类 号：TU441[建筑科学—岩土工程]