某试桩工程后注浆灌注桩成果分析  

Analysis of the Results of Post Grouting Grouting Pile in a Test Pile Project

作　　者：陈战江 宋中凯 张文强 贾克俭 CHEN Zhanjiang;SONG Zhongkai;ZHANG Wenqiang;JIA Kejian(Shandong Construction Engineering Quality Inspection and Testing Center Co.,Ltd.,Jinan 250031,China;Shandong Jianyan Testing and Inspection Technology Co.,Ltd.,Jinan 250100,China)

机构地区：[1]山东省建筑工程质量检验检测中心有限公司,山东济南250031 [2]山东建研检测检验科技有限公司,山东济南250100

出　　处：《中国厨卫》2023年第11期113-116,共4页Chinese Kitchen & Bathroom

摘　　要：文章通过济南某试桩工程成果反推出了济南东北部黄河冲积平原地貌单元旋挖后注浆灌注桩相关岩土设计参数,确定了扩底、非扩底后注浆灌注桩极限端阻力在单桩竖向抗压极限承载力中的占比,对比分析了扩底后注浆灌注桩单桩竖向抗压承载力的增强效果,提出了桩基施工过程中的注意事项,为以后该地区的基桩设计参数选取和施工提供了很好的参考价值。Based on the results of a pile testing project in Jinan,the article deduces the relevant geotechnical design parameters of the rotary excavation grouting pile in the geomorphic unit of the Yellow River alluvial plain in the northeast of Jinan.The proportion of the ultimate end resistance of the expanded and non expanded grouting pile in the vertical compressive ultimate bearing capacity of a single pile is determined,and the enhancement effect of the vertical compressive bearing capacity of the single pile after the expanded bottom grouting pile is compared and analyzed.The precautions during the pile foundation construction process are proposed,This provides a good reference value for the selection of design parameters and construction of foundation piles in the region in the future.

关 键 词：注浆灌注桩 桩基施工 岩土设计 

分 类 号：TU473[建筑科学—结构工程]