公路工程
公路工程
공로공정
JOURNAL OF HIGHWAY ENGINEERING
2014年
6期
152-154,185
,共4页
道路工程%土基%永久变形%土基顶面压应变%粒料基层%沥青路面
道路工程%土基%永久變形%土基頂麵壓應變%粒料基層%瀝青路麵
도로공정%토기%영구변형%토기정면압응변%립료기층%력청로면
Road engineering%subgrade%permanent deformation%compressive strain on top of subgrade%unbound granular base%asphalt pavement
以我国1978年柔性路面设计规范规定的路面结构破坏标准为基础，利用弹性层状体系计算程序计算了典型粒料基层沥青路面的土基顶面压应变和路表理论弯沉值，并利用弯沉值修正公式对理论弯沉值进行修正；在此基础上，首先建立了路表实际弯沉值与土基顶面压应变之间的回归公式，结合1978年柔性路面结构设计规范中的弯沉值控制模型，初步建立了控制土基永久变形的土基顶面压应变控制模型。
以我國1978年柔性路麵設計規範規定的路麵結構破壞標準為基礎，利用彈性層狀體繫計算程序計算瞭典型粒料基層瀝青路麵的土基頂麵壓應變和路錶理論彎沉值，併利用彎沉值脩正公式對理論彎沉值進行脩正；在此基礎上，首先建立瞭路錶實際彎沉值與土基頂麵壓應變之間的迴歸公式，結閤1978年柔性路麵結構設計規範中的彎沉值控製模型，初步建立瞭控製土基永久變形的土基頂麵壓應變控製模型。
이아국1978년유성로면설계규범규정적로면결구파배표준위기출，이용탄성층상체계계산정서계산료전형립료기층력청로면적토기정면압응변화로표이론만침치，병이용만침치수정공식대이론만침치진행수정；재차기출상，수선건립료로표실제만침치여토기정면압응변지간적회귀공식，결합1978년유성로면결구설계규범중적만침치공제모형，초보건립료공제토기영구변형적토기정면압응변공제모형。
Based on deterioration criterion established by design specifications for flexible pave-ment in 1978 and using calculation program suitable for elastic layered system,the compressive strain on top of subgrade and the theoretical value of the road surface defelction were calculated in typical felexible pavement structures with unbound granular base ,and deflection value revision formula put forward in de-sign specifications for flexible pavement in 1978 was used to transform road surface theoretical defelction values into road surface factual defelction values.Above the on ,regression formula beween the compres-sive strain on top of subgrade and the road surface factual defelction values was created.Combined on the controlling model of defelction adopted by design specifications for flexible pavement in 1978,the con-trolling model of compressive strain on top of subgrade was preliminarily set up to control permanent de-formation of subgrade.
