Fill The Stone Subgrade Compaction Quality Assessment Of Surface Subsidence

As a kind of examination method of rock-filling embankment construction quantity, measure of surface settlement gradually gets the extensive applications. However adopted the settlement difference and settlement ratio of surface settlement to appraise the densification ,the prevailing technical specifications lacks the related assessment method .At first, this paper carries on the site tests to validate the relation among settlement difference .settlement ratio ,dry density and pore ratio. At the same time combined with indoor maximum dry density test,this paper discusses the possibility that rock-filling construction quantity .Then data of densification quantity examination under the condition ofdifferent filling material.densification machinery.densification parameter and lay-down thickness are collected as the analytic object. On the basis of making a statistical analysis of experiment data ,supervisory standard and assessment method of settlement difference and settlement ratio that adopted to examine rock-filling embankment construction quantity are put forward systematically At last carrying on settlement observation tests of rock-filling embankment in different construction stage in different layer ,the dependability of assessment method is validated.