木质素-黄土的液塑限固结剪切改良研究  

Study on Liquid Plastic Limit Consolidation Shear Improvement of Lignin Loess

作　　者：买兰兰 李伟杰 杨显文 邵佳雨 魏楷 MAI Lan-lan;LI Wei-jie;YANG Xian-wen;SHAO Jia-yu;WEI Kai(School of Civil and Railway Engineering,Xi′an Traffic Engineering Institute,Xi′an 710300,China)

机构地区：[1]西安交通工程学院土木与铁道工程学院,西安710300

出　　处：《价值工程》2024年第21期101-104,共4页Value Engineering

基　　金：2023年陕西大学生创新创业项目“木质素改良黄土冻融循环条件下的性能研究”编号为2023DC55项目的阶段性成果。

摘　　要：黄土作为一种风成沉积物,在我国尤其是西北地区分布广泛。由于独特的物理力学性质,黄土在工程建设中常面临诸多挑战。特别是在冻融循环条件下,黄土的力学性质和水稳定性会发生显著变化,对工程建设和环境保护造成不利影响。季节性冻融地区在我国占的面积相当广泛。近年来,木质素在土壤改良领域的应用逐渐受到关注。研究表明,木质素可以改善土壤的结构和物理力学性质,提高土壤的稳定性。因此,将木质素作为黄土改良剂,探讨木质素对黄土固结剪切液塑限实验的影响,为提高黄土稳定性提供科学依据。Loess,as an aeolian sediment,is widely distributed in China,especially in the northwest region.Due to its unique physical and mechanical properties,loess often faces many challenges in engineering construction.Especially under freeze-thaw cycles,the mechanical properties and water stability of loess will undergo significant changes,which will have adverse effects on engineering construction and environmental protection.Seasonal freeze-thaw zones cover a considerable area in China.In recent years,the application of lignin in soil improvement has gradually received attention.Research has shown that lignin can improve the structure and physical and mechanical properties of soil,and enhance soil stability.Therefore,using lignin as a modifier for loess,the influence of lignin on the solidification shear liquid plastic limit experiment of loess is explored,providing scientific basis for improving the stability of loess.

关 键 词：改良黄土 木质素 冻融循环 

分 类 号：TU444[建筑科学—岩土工程]