摘要
以上海金山大道试验路段为依托工程，分析旧水泥混凝土碎石化路面结构模量的计算方法以及相应的模量取值。分析结果表明：可按照现行水泥混凝土设计规范计算碎石化路面结构层模量；碎石化路面结构层模量计算采用承载板检测计算与模量反算相结合的办法是可行的；碎石化层静态模量在500-900MPa左右；共振破碎法会造成旧路路面下地基模量衰减30％～40％，但碎石化层顶面综合模量达250-520MPa，仍有足够的承载能力。
Based on Jinshan experimental road in Shanghai,an analysis is made of the modulus calculating methods and modulus values of rubblized concrete pavements. Results show that the modulus of rubblized concrete pavements can be calculated accorcding to current PGC design specification; Bearing plate testing method and back-calculated method are feasible. The static modulus of rubblizecl layer is about 500-900 MPa; the rubblization technique can cause the modulus of subgrade under original PCC pavement to decrease by about 30 % -40 %, but the equivalent resilient modulus on the top of the rubblized layer is about 250- 250 MPa, the beating capacity of which is enough.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第9期1195-1198,1209,共5页
Journal of Tongji University:Natural Science
基金
上海市市政工程管理局科技发展基金资助项目
关键词
路面结构
共振碎石化技术
动态模量
静态模量
承载板检测
模量反算
pavement structure
resonant ruhblizing technique
dynamic modulus
static modulus
bearing plate test
back-calculated modulus
