| 1. | On the basis of a great deal of calculation , a simple and rational calculation method of the loading stress of utw pavement is brought forward
通过大量计算，提出了utw路面荷载应力实用计算方法。最后，介绍了我国第一条utw路面试验路的修筑情况。 |
| 2. | Fatigue property of lean concrete should be studied when the material is set as base course since it withstands the repeated actions of load stress and temperature stress
摘要贫混凝土用于路面基层时，由于受到荷载应力和温度应力的反复作用，需研究其疲劳特性。 |
| 3. | Based on the present research productions , load stress and temperature stress of asphalt pavement with lean concrete base are additionally calculated and the influence of correlated factors is analyzed
在现有研究成果基础上，补充计算了贫混凝土基层沥青路面的荷载应力和温度应力，并分析了各因素的影响。 |
| 4. | Since the louisville utw experiment , although , some utw experimental projects have been built in united state , the loading stress of utw pavement has not been analyzed by theoretical calculation
作为一种新型、有效、快速、经济且简便的旧沥青路面维修技术，虽自lousiville试验路后在美国已进行了大量试验路研究，但在路面结构荷载应力分析方面尚属空白。 |
| 5. | When the load stress and temperature stress of road slabs combine in a disadvantaged state , pavment structures may be distressed when a large axle load loading one time , the fatigue of pavment structures becomes insignificant
当路面板荷载应力与温度应力的组合处于不利状态时,过大轴载的一次作用就可能造成路面结构的破坏,路面结构的抗疲劳性则无从谈起。 |
| 6. | Therefore , increase concrete anti - pull to stretch ability and reduce concrete control is very necessary . base on above reason , for research of measure of anti - crack of mass concrete in not carry have very of important meaning
为了提高混凝土的抗拉伸能力和减少混凝土的内、外部约束，研究大体积混凝土在非荷载应力作用下的施工系统控制具有十分的重要意义。 |
| 7. | The existing methods of structure design of concrete pavement with lean concrete base are analyzed , proving that the equivalent stiffness method is proper for calculating load stress but not for thermal stress
对贫混凝土基层混凝土路面现有结构设计方法的应力计算进行了分析，发现等刚度法用于双层板路面的荷载应力计算是可行的，但用于温度应力计算会引起较大的误差。 |
| 8. | Get theories about best management level . consequently express , adoption above theories and result of test of mass concrete be in progress system control to construction , can effective reduce cracking in mass concrete not carry stress function
结果表明，大体积混凝土采用以上的施工措施和试验方法所提供的结论进行施工过程的系统控制，能有效地降低大体积混凝土在非荷载应力作用下裂缝的开展。 |
| 9. | The formula of axle load conversion in the standard has some problems , so respectively according to the corresponding formulas of load stress and fatigue equations of concrete pavement and lcb , the different formulas of axle load conversion and fatigue stress coefficients are put forward
针对规范中轴载换算存在的问题，分别根据面层和基层的荷载应力公式和疲劳方程，提出轴载换算公式以及疲劳应力系数。 |
| 10. | The load stress and the thermal stress of concrete pavement with lean concrete base are analyzed by three - dimensional finite element method , and the practical formulas of load stress under different axle load models and of thermal stress are get by regression method
利用三维有限元方法对贫混凝土基层混凝土路面进行了荷载应力和温度应力的大量计算，通过回归，得出了贫混凝土基层混凝土路面荷载应力及温度应力实用计算公式。 |
