基于正交试验法固体废弃物土壤固化剂配合比研究  

Research on Mixture Ratio of Solid Waste Soil Stabilizer based on Orthogonal Test Method

作　　者：李振寰 陈传松 崔凯 李永浩 管延华 孙仁娟 Li Zhenhuan;Chen Chuansong;Cui Kai;Li Yonghao;Guan Yanhua;Sun Renjuan(School of Qilu Transportation,Shandong Unirersity,Jinan 250002,China;Shandong Luqiao Group Co.,Ltd.,Jinan 250014,China)

机构地区：[1]山东大学齐鲁交通学院,山东济南250002 [2]山东省路桥集团有限公司,山东济南250014

出　　处：《市政技术》2022年第11期172-176,181,共6页Journal of Municipal Technology

基　　金：国家自然科学基金面上项目(51978387);山东省自然科学基金项目(ZR2021ME215)。

摘　　要：为了有效利用固体废弃物,将电石渣、粉煤灰与水泥复合形成固化剂,采用正交试验的方法,以元明粉激发,渣粉比(电石渣与粉煤灰比值)、水泥掺量和元明粉掺量为因素变量,运用极差分析和方差分析对固化粉砂土的无侧限抗压强度进行了试验研究。研究结果表明,各因素的影响主次顺序为水泥掺量>渣粉比>元明粉掺量;水泥掺量对无侧限抗压强度的影响最大。考虑土壤固化剂对固化土强度的提升,确定固化土强度最高的固体废弃物土壤固化剂配合比为水泥∶电石渣∶粉煤灰∶元明粉=30∶40.8∶27.2∶2。In order to utilize the solid waste effectively,calcium carbide slag,fly ash and cement are combined to form curing agent.By the orthogonal test,stimulating the glauber salt,taking the ratio of carbide slag to fly ash,the amount of cement and sodium sulfate as factors,the unconfined compressive strength of solidified silty soil is studied by range analysis and variance analysis.The results show that the order of influence of each factor is cement content>slag ash ratio>sodium sulfate content,and the content of cement has the greatest influence on unconfined compressive strength.Considering enhancement of the strength of the solidified soil by the soil solidified agent,the ratio of the optimal soil stabilizer is determined as follows∶cement∶carbide slag∶fly ash∶sodium sulfate=30∶40.8∶27.2∶2.

关 键 词：正交试验 复合土壤固化剂 无侧限抗压强度 配合比 

分 类 号：U414.1[交通运输工程—道路与铁道工程]