CAJ | 학술논문

根据广西公路网的具体情况,参考现行规范的要求,结合重载条件下沥青路面结构应力分析,对重载交通的特点以及路面材料参数的取值进行了探讨.建议重载作用下土基回弹模量通过野外承载板法测得的回弹变形0.6mm内的变形线性拟合获得;考虑到重载条件下半刚性材料的p-l曲线表现出明显非线性,建议将半刚性材料的应力应变工作区间延伸到极限荷载的75%～80%.并在工程实践的基础上推荐了几种路面结构组合.
근거엄서공로망적구체정황,삼고현행규범적요구,결합중재조건하력청로면결구응력분석,대중재교통적특점이급로면재료삼수적취치진행료탐토.건의중재작용하토기회탄모량통과야외승재판법측득적회탄변형0.6mm내적변형선성의합획득;고필도중재조건하반강성재료적p-l곡선표현출명현비선성,건의장반강성재료적응력응변공작구간연신도겁한하재적75%～80%.병재공정실천적기출상추천료궤충로면결구조합.
In this paper,considering the specific case of road network in Guangxi,with reference to the current specification requirements,combined with asphalt pavement stress analysis under heavy traffic,the characteristics of heavy traffic and parameters of pavement materials are simply discussed.Reling on a large number of test analysis,soil base resilient modulus values under heavy traffic are proposed by the linear regression method under the test in which the resilient deformation point within 0.6mm by a bearing plate are taken.In addition,considering the case that when unit pressure is greater than 0.7 MPa,p-l curve of the semi-rigid materials shows a clear non-linear relation,and therefore the work stress-strain range are recommended to extend to 75% to 80% of the ultimate load.In the end,based on practical experience,several combinations of pavement structure are recommended.