1. 空军工程大学 机场建筑工程系， 西安 710038； 2. 空军工程设计研究局， 北京 100068
出版日期:2019-06-28发布日期:2019-07-23通讯作者:翁兴中，男，教授，博士生导师，E-mail:wxz2626@sina.com.作者简介:朱懋江（1994-），男，江苏省镇江市人，博士生，主要从事机场道面设计与研究，E-mail:zhumaojiang@126.com.基金资助:国家自然科学青年基金项目（51708550）Bonding and Load Bearing Characteristics of Grouting Layer in Prefabricated Cement Concrete Pavement
ZHU Maojiang1,WENG Xingzhong1,ZHANG Jun1,YANG Bohan2,LIU Junzhong11. Department of Airfield and Building Engineering, Air Force Engineering University, Xi’an 710038, China; 2. Air Force Engineering Design Institute, Beijing 100068, China
Online:2019-06-28Published:2019-07-23摘要/Abstract
摘要： 为解决装配式水泥混凝土道面应用中灌浆层的优选问题，设计了灌浆种类、板底粗糙程度、灌浆厚度和基层结构四因素三水平的正交试验方案，开展了竖向静态和疲劳加载试验以及侧向加载试验.结果表明：板底粗糙程度对灌浆层与面层粘结性能影响最大，灌浆种类对灌浆层与基层粘结性能以及道面结构承载性能影响最大；经疲劳加载后，面层的中性面会出现不同幅度的上移，挠度和压力与疲劳加载次数的关系曲线呈现出剧烈变化、线性变化和稳定3个阶段；侧向荷载作用下，高强无收缩灌浆料(CGM)与基层的粘结性能最好，侧向荷载与上层结构位移满足二次多项式关系.当灌浆材料为CGM、板底光滑、灌浆厚度为 2.0cm、基层结构为12%水泥稳定土时，道面灌浆层的粘结性最好.
关键词: 机场工程； 粘结性能； 疲劳加载； 灌浆层； 装配式水泥混凝土道面
Abstract: In order to solve the optimization problem of grouting layer in the application of prefabricated cement concrete pavement, an orthogonal test scheme with four factors (grouting type, bottom roughness, grouting thickness and base structure) and three levels was designed. The vertical static and fatigue loading tests and lateral loading test were carried out. Results show that the bottom roughness has the greatest influence on the bonding characteristics between the grouting layer and the surface layer. The grouting type has the greatest influence on the bonding characteristics between the grouting layer and the base layer, as well as the bearing capacity of pavement structure. After fatigue loading, the neutral plane of the surface layer exhibits upper shifts in different degrees. The relationship between deflection, pressure and fatigue loading times has three stages: dramatic change, linear change and stable stage. Under lateral load, high strength non-shrink grouting material (CGM) has the best bond with the base. The relationship between lateral load and superstructure displacement meet the quadratic polynomial pattern. When the grouting material is CGM, the slab bottom is smooth, the grouting thickness is 2.0cm, the base structure is 12% cement stabilized soil, the pavement grouting layer achieves the best bonding characteristics.
Key words: airport engineering; bonding characteristics; fatigue loading; grouting layer; prefabricated cement concrete pavement
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