结构工程师Issue(4)：94-98,5.
桩端后注浆的群桩效应研究
Pile Group Effect for Base Post-grouting
摘要
Abstract
Based on the analysis of the interaction of the grouted pile,the pile group effects under base grou-ting was studied in this paper.The influence of grouting sequence and water-cement ratio on the grouting pres-sure were examined by analyzing the measured data.A parameter,the base grouting influence distance factor was defined and the rough range of this parameter was also obtained from the measurement.The analysis re-sults show that the grouting pressure for center pile is big for the outer-to-inner grouting sequence and the grout may be insufficiently distributed.While for the inner-to-outer grouting sequence,no obvious difference in grouting pressure can be observed at different locations.It indicates that the grout can be injected successfully by following this sequence.In addition,it can be found that the lower the water-cement ratio,the larger the grouting pressure is and the mutual influence is reduced.关键词
后注浆/群桩效应/注浆影响距离系数/相互影响Key words
post-grouting/pile group effect/base grouting influence distance factor/mutual influence引用本文复制引用
叶建梁,陈士才,吴小虎,汪潜,陈蓉蓉,包柳青..桩端后注浆的群桩效应研究[J].结构工程师,2014,(4):94-98,5.基金项目
杭州市建委科技研究项目 （）
