摘要
Abstract
In order to get effective evaluation indexes for compaction effect of embankment with sand gravel soil,this paper analyzes physical meaning of deflection and modulus of resilience, points out the relations between them, and uses them in the test of embankment with sand gravel soil. Three testing methods of deflection and modulus of resilience are introduced, and principle of work, performance parameters and main features of PFWD is emphatically introduced. Through field test, the deflection, modulus of resilience and compactness, differential settlement which get from PFWD are compared,linear correlations are obtained, thus the feasibility of PFWD is verfied.关键词
路基工程/路基检测/砂砾卵石土/便携式落锤弯沉仪/弯沉值/回弹模量Key words
subgrade engineering/subgrade detection/sand gravel soil/PFWD/deflection/modulus of resilience分类
交通工程
