铁道科学与工程学报2016，Vol.13Issue(8)：1543-1548,6.
强夯法处理碎石回填地基施工参数现场试验研究
Field test study on construction parameters of gravel backfill foundation treated by dyna mic co mpaction
摘要
Abstract
In this paper,a series of dynamic compaction tests,with different energy levels,were carried out on a typical gravel backfill foundation.The compression deformation characteristics and the effective reinforcement depth of the soil were detected and analyzed comprehensively.The construction parameters of dynamic compaction of the gravel foundation were put forward.It is found out that,whatever the ram energy is,the opti-mal number of the hit is 1 3~1 6 times and the effective reinforcement depth of 3 000 kN energy level is about 4.2 m.Furthermore,based on observation and testing projects data of the density detection,load test,rebound test, ground subsidence,it is proved rational and applicable to use dynamic compact to reinforce gravel backfill foun-dation.The obtained parameters can provide reference for the design,construction and monitoring of the dynamic compaction of the same type.关键词
强夯/碎石土/有效加固深度/现场试验Key words
dynamic compaction/gravel soil/effective reinforcement depth/field test分类
交通工程引用本文复制引用
梅卫锋,杨志勇,黎浩..强夯法处理碎石回填地基施工参数现场试验研究[J].铁道科学与工程学报,2016,13(8):1543-1548,6.基金项目
北京市交通委员会运输管理局项目 （）
