沥青路面施工设备作业质量指标体系与施工技术研究

发布时间：2019-01-11 19:06

【摘要】：为保证沥青路面的施工质量,严格控制设备的作业质量是必要条件之一。现行相关规范侧重施工质量的最终检测,缺乏对设备在各施工环节进行有效的控制,尚未建立完整的设备作业质量指标体系。因此,为解决设备施工的质量控制问题,迫切需要建立相应的质量指标体系。本文通过建立数学模型、现场试验等方法对设备作业质量的影响因素进行研究,参考现有规范与标准,建立沥青路面施工设备作业指标体系。该指标包括两方面内容:一是施工设备自身参数与施工工艺指标,二是设备施工质量的动态检测标准。对于沥青混合料拌和设备,提出温度控制、材料的计量准确度,振动筛分效率,拌和工艺等相应的质量指标;对于摊铺设备,提出弦线基准的拉力与桩距,摊铺速度作业指标,以及摊铺密实度与平整度的检测标准;针对各种压路机压实特性的差异,提出各压实阶段设备选用指标,建立压实速度、碾压遍数、以及压实段长度等作业质量指标和平整度与压实度的检测标准。此外,本项研究在沥青路面施工现场进行大量的试验研究,验证了指标体系的适用性。本文通过对一些关键施工技术的研究,提出一种确定沥青路面摊铺机作业共振频率的工程方法和一种关于沥青减量秤配料误差修正的方法。对振动压路机与轮胎压路机组合施工进行试验研究,提出合理的组合施工工艺。
[Abstract]:In order to guarantee the construction quality of asphalt pavement, strictly controlling the working quality of equipment is one of the necessary conditions. The current relevant codes focus on the final inspection of construction quality, lack of effective control of the equipment in each construction link, and have not yet established a complete equipment operation quality index system. Therefore, in order to solve the quality control problem of equipment construction, it is urgent to establish the corresponding quality index system. In this paper, the influencing factors of equipment operation quality are studied by establishing mathematical model, field test and so on. The operation index system of asphalt pavement construction equipment is established with reference to existing norms and standards. This index includes two aspects: one is the construction equipment's own parameters and the construction craft index, the other is the dynamic test standard of the equipment's construction quality. For the asphalt mixture mixing equipment, the corresponding quality indexes, such as temperature control, material metering accuracy, vibrating screen separation efficiency, mixing process and so on, are put forward. For spreading equipment, the tensile force and pile distance of chord datum, the operation index of spreading speed, and the inspection standard of spreading compactness and smoothness are put forward. Aiming at the difference of compaction characteristics of various compaction machines, this paper puts forward the selection index of equipment in each compaction stage, the establishment of working quality indexes, such as compaction speed, rolling times, and length of compaction section, as well as the inspection standards of smoothness and compactness. In addition, a large number of experiments are carried out on the asphalt pavement construction site, which verifies the applicability of the index system. Based on the study of some key construction techniques, this paper presents an engineering method for determining the resonance frequency of asphalt pavement paver and a method for correcting the proportioning error of asphalt reduction scale. The combined construction of vibratory roller and tire roller is studied, and the reasonable combined construction technology is put forward.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U415.52

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