施工车辆对二灰冷再生底基层的影响研究  

Effect of vehicle on lime subbase in the construction processing of pavement base

作　　者：秦莉[1] 何晓东[2] 马士宾[3] 

机构地区：[1]天津市成套设备工程监理有限公司,天津300191 [2]河北工业大学机械工程学院,天津300130 [3]河北工业大学土木工程学院,天津300401

出　　处：《河北工业大学学报》2013年第4期76-80,共5页Journal of Hebei University of Technology

基　　金：河北省科技计划项目(12217636)

摘　　要：二灰冷再生底基层的结构承载能力与养护时间密切相关.为探求基层施工期间,二灰冷再生底基层在汽车轮作用下路面的损坏类型和机理,本文首先通过室内试验研究,获得了二灰冷再生材料不同龄期的各种路用性能.然后利用kenpave程序计算出龄期、施工车辆轴载、模量等因素作用下,弯沉和层底拉应力的变化规律,提出针对具体的情况应采取具体的施工方案和车辆管制措施.Structural bearing capacity of lime sub-base is closely related with the curing time. In order to find lime sub-base's inside mechanical behavior, type and damage mechanism of road surface under the vehicle effect during base construction.At first road performance parameters were acquired at different age of lime soil through laboratory experiments in this paper.Then using the Bisar3.0 program calculate the variation of deflection, layer the bottom shear stress and tensile stress level and other mechanical indicators, under age, construction vehicles axle load, horizontal load and other factors. This will provide certain reference function for improving the early damage phenomenon of semi rigid base asphalt pavement.

关 键 词：沥青路面 二灰冷再生 底基层 施工期 车辆荷载 

分 类 号：U416.2[交通运输工程—道路与铁道工程]