| 沥青路面反射裂缝机理及夹层结构应力分析 |
| |
| 引用本文： | 赵复笑,余天庆,金生吉.沥青路面反射裂缝机理及夹层结构应力分析[J].沈阳建筑工程学院学报(自然科学版),2010,26(2). |
| |
| 作者姓名： | 赵复笑 余天庆 金生吉 |
| |
| 作者单位： | 赵复笑(东北大学资源与土木工程学院,辽宁,沈阳,110004);余天庆(东北大学资源与土木工程学院,辽宁,沈阳,110004;湖北工业大学土木工程与建筑学院,湖北,武汉,430068);金生吉(沈阳工业大学建筑工程学院,辽宁,沈阳,110178) |
| |
| 摘 要： | 目的 研究反射裂缝对面层结构内部应力的影响及应力吸收层模量对裂缝尖端应力的影响.方法 采用断裂力学理论对路面裂缝的形成和扩展进行分析,利用有限元软件ANSYS对路面结构进行数值模拟,研究沥青结合料路面反射裂缝产生机理.结果 有裂缝的路面结构在裂缝尖端处的剪应力和拉应力均有突变,裂缝尖端的应力场有明显的奇异性.在车辆动载的作用下,半刚性基层裂缝尖端剪应力的奇异性导致裂缝反射到沥青面层上.结论 选择低模量、抗剪切能力强的应力吸收层能够抑制剪切型反射裂缝的发展.
|
| 关 键 词： | 反射裂缝 裂缝产生机理 有限元 应力吸收层 |
Experimental Study on Deformati of Multi-Level Retaining |
| |
| ZHAO Fuxiao,YU Tianqing,JIN Shengji.Experimental Study on Deformati of Multi-Level Retaining[J].Journal of Shenyang Archit Civil Eng Univ: Nat Sci,2010,26(2). |
| |
| Authors: | ZHAO Fuxiao YU Tianqing JIN Shengji |
| |
| Affiliation: | ZHAO Fuxiao1,YU Tianqing1,2,JIN Shengji3(1.College of Resources , Civil Engineering,Northeast University,Shenyang China,110004,2.School of Civil Engineering , Architecture Hubei University of Technology,Wuhan China,430068,3.College of Architectural Engineering,Shenyang University of Technology,110178) |
| |
| Abstract: | This paper focuses on the study of internal stress effects at the reflective cracking in the pavement structure and the effect of stress absorbing layer modulus on crack tip stress.By analyzing the pavement cracks shape and expansion by fracture mechanics theory,the experiments simulate the structure of the surface by the finite element software ANSYS,studying the mechanism of shaping reflection cracks in the asphalt concrete pavement.The results are shown as the pavement structure containing cracks have a ... |
| |
| Keywords: | reflective cracking mechanism of cracking Finite Element Method stress-absorbing interlayer |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
