基于正交设计的复合注浆材料配合比优化试验  

Mix Proportion Optimization Test of Composite Grouting Material Based on Orthogonal Design

作　　者：韦海霞 刘之葵[1] 陶国钲 黄能胜 蒋仕清 姜大伟 WEI Haixia;LIU Zhikui;TAO Guozheng;HUANG Nengsheng;JIANG Shiqing;JIANG Dawei(Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering,Guilin University of Technology,Guilin 541004,China;Building Materials Guilin Geological Engineering Investigation Institute Co.Ltd.,Guilin 541002,China)

机构地区：[1]桂林理工大学广西岩土力学与工程重点实验室,广西桂林541004 [2]建材桂林地质工程勘察院有限公司,广西桂林541002

出　　处：《洛阳理工学院学报（自然科学版）》2024年第4期38-44,共7页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：国家自然科学基金项目(41867039);广西岩土力学与工程重点试验室项目(桂科能20-Y-XT-03);南方石山地区矿山地质环境修复工程技术创新中心项目(CXZX12020002).

摘　　要：为解决传统地基注浆材料稳定性差、早期强度低的缺点,以硅灰、水泥、水玻璃、减水剂为原材料,制备一种适用于既有建筑地基纠偏加固的复合注浆材料。采用正交试验设计,通过凝胶时间试验、流动度试验、析水率试验和抗压强度试验,研究了水玻璃掺量、减水剂掺量和硅灰掺量3个因素及其3个不同水平对浆液的凝胶时间、流动度、析水率以及结石体抗压强度的影响规律。基于各因素对目标参数影响的主次顺序,对每个目标参数在单因素作用下的最优组合进行综合优化平衡,并提出最优配合比。结果表明:水玻璃掺量和硅灰掺量对材料性能的影响显著,综合最优配合比为水玻璃掺量为35%、减水剂掺量为1%、硅灰掺量为15%。In order to solve the shortcomings of poor stability and low early strength of traditional foundation grouting materials,this paper uses silica fume,cement,water glass and water reducing agent as raw materials to prepare a composite grouting material suitable for rectification and reinforcement of existing building foundations.Orthogonal test design was used to study the influence of 3 three factors and three different levels of water glass content,water reducing agent content and silica fume content on the gel time,fluidity,water precipitation rate and compressive strength of the slurry through gel time test,fluidity test,water precipitation rate test and compressive strength test.Based on the primary and secondary order of the influence of each factor on the target parameters,the optimal combination of each target parameter under the action of single factor is comprehensively optimized and balanced,and the optimal mix ratio is proposed.The results show that the content of water glass and silica fume has a significant effect on the performance of the material.The comprehensive optimal mix ratio is 35%in water glass content,1%in water reducing agent content,and 15%in silica fume content.

关 键 词：地基加固 注浆材料 正交试验 材料性能 

分 类 号：TU525[建筑科学—建筑技术科学]