旧水泥混凝土共振碎石化路面模量分析  

Analysis of Modulus of Rubblized Concrete Pavement Based on Resonant Technique

作　　者：徐柱杰[1] 凌建明[1] 黄琴龙[1] 谢旗[2] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海200092 [2]新疆油田公司,新疆克拉玛依834000

出　　处：《同济大学学报（自然科学版）》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

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.

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 

分 类 号：U416.2[交通运输工程—道路与铁道工程]