CAJ | 학술논문

为了解长大纵坡饱和沥青路面的水损害机理，基于Biot固结理论和多雨地区长大纵坡的特点，建立了在移动荷载作用下长大纵坡饱和沥青路面“面层-基层-路基”二维三层体系水力耦合模型和水力耦合控制方程，在面层底部为完全排水边界条件下全面系统地分析了车辆荷载、荷载移动速度和纵坡坡度对面层中正应力、孔隙水压力、剪应力和面层位移等物理量分布的影响，为长大纵坡沥青路面结构设计提供理论基础和参考。结果表明：车辆荷载和荷载移动速度对面层中正应力、孔隙水压力、剪应力和面层位移产生显著影响，而纵坡坡度对面层中正应力、孔隙水压力、剪应力和面层位移几乎不产生影响。
위료해장대종파포화력청로면적수손해궤리，기우Biot고결이론화다우지구장대종파적특점，건립료재이동하재작용하장대종파포화력청로면“면층-기층-로기”이유삼층체계수력우합모형화수력우합공제방정，재면층저부위완전배수변계조건하전면계통지분석료차량하재、하재이동속도화종파파도대면층중정응력、공극수압력、전응력화면층위이등물리량분포적영향，위장대종파력청로면결구설계제공이론기출화삼고。결과표명：차량하재화하재이동속도대면층중정응력、공극수압력、전응력화면층위이산생현저영향，이종파파도대면층중정응력、공극수압력、전응력화면층위이궤호불산생영향。
In order to reveal the mechanism of water-induced damage to longitudinal slope saturated as?phalt pavement, based on the Biot Consolidation Theory and characteristics of the longitudinal slope in rainy regions, the hydro-mechanical coupled mode and hydro-mechanical coupled governing equations with two-dimensional three-layer system of"Surface-Base-Subgrade"of saturated asphalt pavement be?ing subject to moving traffic loads were established. With the boundary condition that the bottom of the surface could completely drain, the influence of vehicle load, driving speed and longitudinal slope on dis?tribution of normal stress, pore-water pressure, shear stress, surface course displacement and other phys?ical quantities were analyzed comprehensively and systematically, offering the theoretical foundation and reference to the design of longitudinal slope asphalt pavement structure. The results show that the vehi?cle load and moving traffic loads speed have significant influence on the normal stress, pore water pres?sure, shear stress and surface displacement, and the longitudinal slope has almost no impact on the nor?mal stress and pore water pressure, shear stress and surface displacement.