智能化双向搅拌技术在高速公路软基施工中的应用  

Application of intelligent bidirectional mixing technology in the construction of highway soft foundationground treatment

作　　者：杨建波 徐雄 周卫国 张青 YANG Jianbo;XU Xiong;ZHOU Weiguo;ZHANG Qing(Hubei Communications Investment Construction Group Co.,Ltd.,Wuhan 430077,Hubei;Jiangsu Shengtai Construction Engineering Co.,Ltd.,Lianyungang 222000,Jiangsu)

机构地区：[1]湖北交投建设集团有限公司,湖北武汉430077 [2]江苏盛泰建设工程有限公司,江苏连云港222000

出　　处：《粘接》2024年第9期172-175,共4页Adhesion

摘　　要：在湖北省的3个高速公路软土地基处理项目中,采用自主研发的双向搅拌粉喷桩智能化施工控制系统,进行了现场试验。结果表明,智能化双向搅拌粉喷桩的芯样整体完整性较好,在特定土层深度内依然能保持良好的完整性。智能化施工控制系统显著改善了水泥土的拌和均匀性,增强了桩身质量的一致性,并且桩身强度的分布在5%显著性水平下近似符合正态或对数正态分布。单桩和复合地基承载力特征值均达到设计要求。In three highway soft ground improvement projects in Hubei Province,field tests were carried out using a self-developed intelligent control system for bidirectional deep mixing columns.The results showed that the overall integrity of the core sample of the intelligent two-way stirring powder spraying pile was good,and it could still maintain good integrity in a specific soil depth.The intelligent control system significantly improved the uniformity of the cement-soil mixing,enhanced the consistency of the pile quality,and the strength distribution of the piles approximated a normal or log-normal distribution at a 5%significance level.The characteristic values of the bearing capacity of the single pile and the composite foundation meet the design requirements.

关 键 词：双向搅拌桩 智能化 软土 地基处理 

分 类 号：TQ177.62[化学工程—硅酸盐工业] TU472[建筑科学—结构工程]