水泥混凝土轮迹道路力学特性分析

发布时间：2018-06-29 01:05

本文选题：相似理论 + 强度等级　；参考：《内蒙古农业大学》2017年硕士论文

【摘要】：水泥混凝土轮迹道路是指将车辆轮胎频繁碾压的区域铺上水泥混凝土路面板或摆铺混凝土预制块,车辆轮距内及路肩带选择当地的碎石、黏土做简单的封闭处理后所建成的一种适用于山区等边远贫困区的乡村道路。水泥混凝土轮迹道路路面板用料少、铺筑养护维修简单方便、能很好的与周围环境相融合、耐久性好,还是一种全天候道路。所有的研究都是基于解决实际问题,与广大农民群众日常的生活、生产密切相关,因此所做的研究必须与被研究者的实际工作情况相接近。本文利用相似理论,对传统抗压强度和抗折强度测试的试件尺寸、全铺混凝土路面板和轮迹道路路面板进行缩尺,选取了两种低强度等级(C25、C30)混凝土,根据推导出的用于水泥混凝土轮迹道路的标准轴载(60kN),对缩小后的试件及路面板进行抗压、折强度测试。得到的研究成果主要有:(1)通过分析试件的极限抗压荷载与试件尺寸间的影响规律,得到用于水泥混凝土轮迹道路抗压强度测试的标准试件尺寸为11Omm× 11Omm× 110mm。(2)通过分析试件的极限抗折荷载与试件尺寸间的影响规律,得到用于水泥混凝土轮迹道路抗折强度测试的标准试件尺寸为110mm × 110mm × 430mm。(3)室内模拟路面结构,通过加载试验所测出的抗压、折极限荷载与路面板尺寸间的关系,对得出的用于轮迹道路力学强度检测标准试件尺寸的合理性进行验证。
[Abstract]:Cement concrete track road refers to the area where the vehicle tires are frequently rolled over the cement concrete pavement face or the precast concrete block, and the local gravel is selected within the vehicle wheel base and the road shoulder belt. A rural road built after simple closure of clay for remote poverty areas such as mountainous areas. Cement concrete wheel track road pavement with less material, simple and convenient pavement maintenance and maintenance, can be well integrated with the surrounding environment, good durability, or a kind of all-weather road. All the studies are based on solving practical problems and are closely related to the daily life and production of the broad masses of peasants, so the research done must be close to the actual work situation of the researchers. In this paper, by using the similarity theory, two kinds of low strength grade concrete (C25C30) concrete are selected for the dimensions of the traditional compressive strength and flexural strength test specimens, the full paving concrete pavement and the wheel track road pavement. According to the standard axial load (60kN) derived for the cement concrete wheel track road, the compressive and flexural strength of the reduced specimens and the road face are tested. The main results are as follows: (1) by analyzing the influence of ultimate compressive load on specimen size, A standard specimen size of 11Omm 脳 11Omm 脳 110mm was obtained for testing the compressive strength of cement concrete wheel track road. (2) the influence of ultimate flexural load on the specimen size was analyzed. A standard specimen size of 110mm 脳 110mm 脳 430mmm is obtained for testing the flexural strength of cement concrete wheel track road. (3) the relationship between the compressive strength and the ultimate load and the size of the pavement slab, measured by the loading test, is obtained. The rationality of the dimension of the standard specimen used for the mechanical strength test of the wheel track road is verified.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U416.216

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