湿陷性黄土加固技术及其研究进展  

COLLAPSIBLE LOESS AND ITS REINFORCEMENT TECHNOLOGY

作　　者：秦鹏飞 刘阳[1] 孙丽娟[1] 熊毅 QIN Peng-fei;LIU Yang;SUN Li-juan;XIONG Yi(School of Railway Engineering,Zhengzhou University of Railway Vocational Technology,Zhengzhou 451000,China)

机构地区：[1]郑州铁路职业技术学院铁道工程学院,河南郑州451000

出　　处：《南阳理工学院学报》2022年第2期70-75,共6页Journal of Nanyang Institute of Technology

基　　金：河南省高校人文社科研究项目(20230475);郑州铁路职业技术学院思想政治专项研究(2021013);郑州铁路职业技术学院教改项目(2021011)。

摘　　要：湿陷性黄土对工程安全危害极大,分析了黄土多孔隙、弱胶结和欠压密的微观结构特征及湿陷机理,然后从水泥、水玻璃、SH固化剂、木质素等有机、无机材料方面对黄土化学加固法进行了阐释,并从灰土挤密桩、刚-柔性桩竖向增强体方面对黄土复合地基技术进行了探讨,最后分析了强夯法处理黄土地基的适用性及强夯处理深度的影响因素。黄土地基处理技术的发展进步,为提升我国中西部广大地区工程项目的建设质量提供了可靠保证。Based on the analysis of the microstructure characteristics and collapsible mechanism of collapsible loess,such as porous,weak cementation and undercompaction,the chemical reinforcement method of loess is explained from the aspects of inorganic materials such as cement and water glass,organic materials such as SH curing agent and lignin,and the composite foundation technology of loess is discussed from the aspects of lime soil compaction pile and rigid flexible pile.The effective treatment of loess after dynamic compaction is reviewed.The development and progress of loess foundation treatment technology provides a reliable guarantee for improving the quality and level of engineering construction projects along the silk road.

关 键 词：湿陷性黄土 化学加固 灰土挤密桩 刚-柔性桩 强夯加固 地基处理 

分 类 号：TU42[建筑科学—岩土工程]