检查井井周路面病害防治技术研究

发布时间：2018-06-20 20:27

本文选题：检查井 + 病害　；参考：《河北工业大学》2015年硕士论文

【摘要】：随着城市现化代水平的提高,排水管道及检查井日益增多。检查井的存在一定程度不仅影响了道路的整体性、结构稳定性、外观美感,而且对于道路的寿命也产生直接影响。各种检查井病害给行人及机动车出行带来不便,轻则引起道路的损坏,重则检查井大幅度沉陷,导致交通事故的发生。随着市民生活水平及环保、安全、法律意识的增强,其对道路服务质量要求也日益提高,导致这一问题更加突出。目前城市道路检查井病害问题已经引起各级职能部门的高度重视。因此,研究检查井病害的防治技术是很有必要的。本文在调研天津市城市检查井井周路面变形、下沉,碎裂等病害问题后,提出城市道路检查井井周路面病害防治和改善措施,主要研究内容如下:1、调查研究国内、外现状,结合天津市检查井主要病害调查,对检查井井周路面病害机理和成因进行分析。2、依据天津市快速路、主干路和次干路的主要路面典型结构,利用ABAQUS有限元软件建立三种道路检查井结构模型,同时,分析车辆荷载作用下检查井井周路面不同层厚的压应力、剪应力的变化规律。3、研究检查井井周病害防治措施。基于力学分析,提出提高井圈水泥混凝土强度性能、设置钢筋骨架混凝土井圈等防治措施,并对不同路面结构检查井钢筋骨架井圈的选定进行了分析。4、研究一种具有高流动度、微膨胀率、无泌水、强度高、稳定性良好的检查井井周路面破损水泥修补材料,试验分析最优配比,对不同配比进行强度试验验证,确定修补材料施工方法。
[Abstract]:With the improvement of urban present level, drainage pipes and inspection wells are increasing day by day. To a certain extent, the existence of inspection wells not only affects the integrity of the road, structural stability, aesthetic appearance, but also has a direct impact on the road life. All kinds of inspection well diseases cause inconvenience to pedestrians and motor vehicles, light damage to roads, and large scale subsidence of inspection wells, leading to traffic accidents. With the enhancement of citizen's living standard, environmental protection, safety and legal consciousness, the requirement of road service quality is also improving day by day, which leads to this problem becoming more prominent. At present, the problem of urban road inspection well disease has been paid great attention to by the functional departments at all levels. Therefore, it is necessary to study the prevention and cure technology of well disease. In this paper, after investigating and investigating the problems of road surface deformation, subsidence and fragmentation around the well in Tianjin City, the prevention and improvement measures are put forward. The main research contents are as follows: 1, investigating and studying the present situation in China and abroad. Combined with the investigation of main diseases of inspection wells in Tianjin, the mechanism and cause of pavement diseases around inspection wells are analyzed. 2. According to the typical structure of main pavement of Tianjin expressway, main trunk road and secondary trunk road, By using Abaqus finite element software, three kinds of road inspection well structure models are established. At the same time, under the action of vehicle load, the compressive stress and shear stress of different thickness of pavement around the well are analyzed, and the prevention and cure measures of the disease around the well are studied. Based on the analysis of mechanics, this paper puts forward some preventive measures such as improving the strength performance of cement concrete and setting up reinforced skeleton concrete hoop, and analyzes the selection of reinforced frame circle in different pavement structure inspection wells, and studies a kind of high flow degree. Micro-expansion ratio, no bleeding, high strength and good stability are used to check the damaged cement repair material around the well, and the optimum ratio is analyzed, and the strength test is carried out to confirm the construction method of the repair material.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U418.6

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