Study on semi rigid pavement structure with granular base;
具有碎石基层的半刚性沥青路面合理结构研究
The results show that the effect of cross-anisotropy to surface deflection is not obvious when the thickness of granular base is at some degree.
结果表明,当碎石基层厚度达到一定程度后,其横观各向同性特性对路表弯沉的影响将不明显。
This paper analysed the structure of asphalt pavement with granular base by nonlinear finite element method, in which the granular base was modeled with the Boyce nonlinear elastic model enhanced with a Drucker-Prager plasticity model and other layers were modeled with elastic model.
对具有碎石基层的沥青路面结构,采用8节点等参元的弹塑性有限元模型,分析了路面结构的变形、应力及塑性区域。
This paper introduces the experimental method, laboratory equipment and facilities used to determine the friction factor between the gravity steel structure and the rubble-mound foundation.
概述了测定海上重力式钢结构底面与抛石基床顶面间摩擦系数的试验方法、试验装置及设备,在对21种组合386个样本的试验成果进行统计分析的基础上,初步给出了钢与基床(碎石)之间的摩擦系数,同时指出了重力式钢结构应用中有待进一步解决的问题和可能的解决办法。
It is stipulated in current codes to check the resistance to sliding on the top and bottom of the rubble bed,with no consideration of sliding failure inside the rubble bed.
现行规范要求对抛石基床的顶面和底面进行水平抗滑稳定性验算,而不考虑抛石基床的内部滑移破坏情况,当基床较薄时,这样的规定可以保证抛石基床的安全性;当抛石基床比较厚时,基床后侧水平土压力作用不能忽略,基床内部可能会存在水平滑移面。
In explosive ramming of rubble bed of 4# & 5# berths of China Merchants Zhangzhou Development Zone, it briefly introduces the objective and measures at preparation & implementation stages respectively.
针对漳州港 4 #、5 #泊位抛石基床爆夯工序 ,简单介绍爆夯施工准备阶段、实施阶段目标及措施 ,分析爆夯基床的密实效果以及对周围环境的影响。
The method for raising the efficiency of heavy tamping compaction construction of gravity wharf rubble bed under the prerequisite of guaranteeing quality is approached.
探讨重力式码头抛石基床重锤夯实施工中在保证质量的前提下提高作业效率的方法。
The friction force between soil cushion and outer wall of basement,soil cushion and the face of rack,is not considered in the present method about the lateral pressure of a outer wall of basement in rock pit.
对于岩石基坑内的地下室外墙计算,现行的方法不考虑基坑内填土与地下室外墙及填土与岩石表面之间的摩阻力,计算出的侧压力偏大,与实际工程情况不符,笔者给出了与实际情况较吻合的计算方法及设计图表,可供设计人员参考。
The analysis for application of rock foundation in mountain area;
岩石基础在山区应用的分析
Through analyzing and discussing some of tower rock foundations which is in common domestic are at present,according to surface features of poly-mountain and hill in Jiangxi,a new type rock foundation is designed and applied in connecting the Hubei to Jiangxi power network engineering of 500kV transmission line.
通过对国内目前普遍采用的几种岩石基础的分析和讨论 ,针对江西多山丘陵的地形特点 ,在鄂赣联网 50 0kV线路设计应用了一种新型岩石基础。
In connection with the characteristics of Yichang mountain area,the key method to reduce the cost and time of transmission lines construction and to make the operation convenient is applying large number of rock foundations.
根据宜昌山区的特点 ,如何在输电线路工程中大幅度降低工程造价 ,方便施工 ,缩短工期 ,其重要途径是精心设计 ,大胆、大量采用岩石基础。