| 1. | Heavy vehicle overload becomes an important cause for damage of high way pavement 重载车辆行车荷载已经成为了高速公路路面破坏的一个重要原因。 |
| 2. | Mechanics analysis of loads and pavement structure type to asphalt pavement rutting by 3d finite element method 行车荷载及路面结构对车辙影响的有限元分析 |
| 3. | Road testing . measurement of a rolling load deflection . part 1 : definitions , measurements , specific values 路面试验.行车荷载面形成的弯曲测定.第1部分:定义测量方法特性评估 |
| 4. | Road testing . measurement of a rolling load deflection . part 5 : determination of deflection values using deflectograph 04 路面试验.行车荷载偏转测定.第5部分:使用偏转图04对偏转值的测定 |
| 5. | Transverse fracture is a leading form of pavement ' s breakage . lt may be made by structure ' s temperature cracking . dryness cracking and traffic load 本文特别针对温度和行车荷载两种情况下,讨论路面结构内力分布情况。 |
| 6. | Through lab tests on melted and common dark green silty soil of the passway in shanghai fuxing east road tunnel by using the typical triaxial test machine - ckc , their dynamic stress and stress - strain relations with different frequencies were studied 摘要以上海复兴东路越江隧道江底旁通道冻结施工中的原状和冻融作用后的暗绿色粉质粘土为研究对象,运用ckc循环三轴仪,采用不同的频率来摸拟行车荷载进行室内动三轴试验。 |
| 7. | This paper presents design principle and method of asphalt concrete pavement typical construction and cement concrete pavement typical construction , formulates typical construction drawing of two type pavement and workouts pavement typical construction computer aided design , by summarizing and absorbing research production of home and abroad , considering different natural conditions , grade of road and traffic volume in ningxia , and collecting a mass of engineering datum , calculating and checking 本文通过总结与吸收近年来国内外路面典型结构的研究成果,考虑宁夏地区不同的自然条件、道路等级和行车荷载条件,在大量计算、验算的基础上,提出适用于宁夏公路的沥青混凝土路面典型结构和水泥混凝土路面典型结构的设计原则和方法,具体拟定了两种类型路面的典型结构图,并编制了公路路面典型结构计算机辅助设计程序。 |
| 8. | Because traffic flow greatly increases in recent years and the rank of actual driving load enhances , causing this bridge to be at the excess load the service condition , so in order to guarantee the bridge ' s transport security , the main body structure of the bridge should be reinforced 摘要长沙市八一路跨线桥由于近年来交通流量大增,实际行车荷载等级提高,使得该桥处于超负荷的营运状态,为了保证大桥营运安全,需要对此桥的主体结构进行加固,在选择加固方案时对比了三种加固方法:钢混凝土组合结构加固方法、混凝土结构扩大截面加固方法、粘钢加固方法。 |
| 9. | Here aiming at temperature and traffic load factors , have a systemic study about strcture ' s stress distribution . plan is to make use of ansys to calculate pavement structure ' s distortion with full grade gravelly interlayer carefully through changing each layer ' s thickness and module . next , analysize stress among bottom of surface asphalt layer and top of semi - rigitidy base . lastly . make a conclusion : how to distrube stress and strain about the structure after adding gravelly interlayer 方法是采用ansys对加设级配碎石基层半刚路面结构进行多种参数模拟计算,通过改变结构材料厚度、模量等观察基层和面层应力变化,研究碎石基层怎样调整结构应力而防止了温度和行车荷载产生的过大拉应力,避免基层产生内部裂缝。 |