摘要
为改善高原红粘土在工程中的适用性,研究采用矿粉作为主要掺料的土壤固化剂,通过室内试验对红粘土进行加固,研究不同含水率下固化剂对红粘土的加固效果,固化剂对红粘土强度、抗渗、抗流变的改善.结果表明:在最优含水率下红粘土和固化土强度能达到最大,掺入10%固化剂时无侧限抗压强度达到最高6.52 MPa,在掺入20%固化剂时渗透系数达到最低5.30×10^-7,流变屈服应力达到最大22.310 Pa.掺入矿粉固化剂后红粘土的各项性能均得以改善,可为进一步的工程应用研究提供参考.
In order to improve the applicability of plateau red clay in engineering,a soil stabilizer with mineral powder as main admixture was studied,and the red clay was strengthened through laboratory tests.The strengthening effect of soil stabilizer on red clay under different moisture content was studied,and the improvement of strength,impermeability and rheology of red clay by soil stabilizer was studied.The results show that the strength of red clay and solidified soil reaches the maximum at the optimum moisture content,the unconfined compressive strength reaches the highest 6.52 MPa when 10%soil solidifier is added,the lowest permeability coefficient is 5.30×10^-7 when 20%solidifying agent is added,and the rheological yield stress reaches the maximum 22.310 Pa.The mineral powder soil stabilizer has achieved good results in improving the properties of red clay,which can provide reference for further engineering application research.
作者
王奕博
唐正光
杨玉龙
WANG Yi-bo;TANG Zheng-guang;YANG Yu-long(School of Architectural Engineering, Kunming University of Science and Technology, Kunming 650500, China)
出处
《中北大学学报（自然科学版）》
CAS
2020年第5期443-449,共7页
Journal of North University of China(Natural Science Edition)
关键词
固化剂
红粘土
强度
渗透
流变
soil stabilizer
red clay
strength
permeability
rheology
