半刚性基层损伤开裂机制与微裂技术研究综述  

Research Review of Damage Cracking Mechanism and Micro-cracking Technique of Semi-rigid Base

作　　者：田波[1] 权磊[1] 张艳聪 TIAN Bo;QUAN Lei;ZHANG Yan-cong(Research Institute of Highway Ministry of Transport,Beijing 100088,China;Shanxi Transportation Technology Research&Development Co.,Ltd.,Taiyuan,Shanxi 030032,China)

机构地区：[1]交通运输部公路科学研究院,北京100088 [2]山西省交通科技研发有限公司,山西太原030032

出　　处：《山西交通科技》2022年第5期1-8,共8页Shanxi Science & Technology of Transportation

摘　　要：以水泥稳定碎石为代表的半刚性基层广泛应用于我国各等级公路路面结构,但水泥稳定基层易产生长宽收缩裂缝和板块化断裂等隐蔽性病害,诱发反射裂缝等次生损坏,是影响路面长寿的痼疾。从半刚性基层的破坏模式和控制方法、水泥稳定碎石损伤开裂机理、水泥基材料损伤断裂的细观力学分析方法和半刚性基层微裂技术等4个方面梳理了半刚性基层抗裂技术的发展脉络,指出了微裂技术是控制半刚性基层沥青路面反射裂缝的有效手段,提出了碾压微裂和内生微裂的下一步研究方向。Semi-rigid base represented by cement stabilized macadam is widely used in highway pavement structures of all grades in China.However,the cement stabilized base is prone to hidden diseases such as long and wide shrinkage cracks and plate fractures,inducing secondary damages such as reflection cracks,which is a deep-rooted problem that affects the service life of pavements.In this paper,the development process of the anti-cracking technologies of the semi-rigid base was clarified from four aspects of failure modes and control method of the semi-rigid base,damage cracking mechanism of cement stabilized macadam,meso-mechanical analysis method for damage fracture of cementitious materials,and micro-cracking technique of semi-rigid base,indicating that the micro-cracking technique is effective to control the reflection cracks of semi-rigid base asphalt pavement,and proposing the next research direction of rolling micro-cracking and endogenous micro-cracking.

关 键 词：沥青路面 长寿命 半刚性基层 损伤开裂 微裂 

分 类 号：U416.223[交通运输工程—道路与铁道工程]