压路机随车检测系统及瑞利波检测系统的开发

发布时间：2018-06-25 17:13

本文选题：无损检测 + 虚拟仪器　；参考：《郑州大学》2014年硕士论文

【摘要】：众所周知，压路机完成工作的标准主要靠检测压实度来确定。目前以压实度来控制施工质量主要用在水利工程中土石坝的建设和公路工程的修筑中。合格碾压工作质量可以为水利工程坝体建设保证合格的压实度，对防止坝体渗漏、保证坝体安全起到重要作用，而在公路工程中可以提高道路的承载力，并防止沉陷，水分渗透等。另外随着公路的大规模修筑，公路的维修工作也成为公路管理部门工作的重中之重。但是落后的传统检测手段使得修筑和维修工作变得耗时耗力、速度迟缓、精确度受人为影响大，急待得到改善。综上所述，智能快速无损压实度检测技术和道路无损检测技术的开发就显得尤为重要和迫切，一方面可以加快施工进度、提高压实质量，为压实工作提供更好的控制和管理，另一方面可以为道路的养护提供精确的无损检测技术，，以便及时检测、排除隐患。针对此状况，本文根据虚拟仪器的原理做出了以下研究：（1）以LabVIEW为开发平台，借助美国NI公司的高速USB载体、加速度传感器以及GPS信号接收器、橡胶锤等开发了一套智能压路机随车检测系统和一套瑞利波道路无损检测系统。（2）智能压路机随车检测系统实现了路基压实质量的快速无损检测、压路机速度、压实遍数、压实轨迹的GPS定位以及保存打印报表的功能，给现场压实质量检测和控制带来一定的方便；瑞利波道路无损检测系统是利用瑞利波在不同的介质中的频散特性以及传播速度不同，从而对道路结构分层、基层脱空、软弱夹层进行无损检测，有利于施工方和业主对已修道路进行检测、校核评估，同时对于后期养护修复工作可以提供一定参考价值。（3）分别利用智能压路机随车检测系统和瑞利波道路无损检测系统在新郑市南水北调中线三标段施工现场和河南省焦作市博爱县某公路段做了现场试验，并与传统试验方法进行对比，结果证明了两套智能检测系统的可靠性、可行性，突出了智能、无损、方便快捷的优点，不仅满足了施工方和业主对智能检测仪器的检测要求也为将来的检测工程智能化提供一定参考价值。（4）通过现场试验对两套智能检测系统进行的验证结果做出评价和展望，希望智能检测系统可以在现实施工环境中得到提倡和应用，为公路和水利的建设维护事业做出贡献。
[Abstract]:As we all know, the standard of compaction is determined by measuring compactness. At present, the compaction degree is used to control the construction quality mainly in the construction of earth and rock dams in water conservancy projects and in the construction of highway projects. The quality of qualified roller compaction can guarantee the qualified compaction degree for the construction of water conservancy dam body, and play an important role in preventing dam body leakage and ensuring dam body safety. In highway engineering, the bearing capacity of road can be improved and the settlement can be prevented. Water penetration, etc. In addition, with the large-scale highway construction, highway maintenance has become the most important work of highway management. However, the backward traditional detection means make the construction and maintenance work become time-consuming, slow, the accuracy is greatly affected by human, urgent need to be improved. To sum up, the development of intelligent rapid nondestructive compaction testing technology and road nondestructive testing technology is particularly important and urgent. On the one hand, it can speed up construction progress, improve compaction quality, and provide better control and management for compaction work. On the other hand, it can provide accurate nondestructive testing technology for road maintenance, in order to detect and eliminate hidden dangers in time. According to the principle of virtual instrument, this paper makes the following research: (1) with LabVIEW as the development platform, with the help of American NI high-speed USB carrier, acceleration sensor and GPS signal receiver, The rubber hammer has developed a set of intelligent road roller carrying detection system and a Rayleigh wave road nondestructive testing system. (2) the intelligent roller carrying inspection system has realized the fast nondestructive testing of roadbed compaction quality and the road compactor speed. The number of compaction times, the GPS positioning of compaction track and the function of saving print report form bring some convenience to the field compaction quality detection and control. Rayleigh wave road nondestructive testing system uses Rayleigh wave in different media of different dispersion characteristics and different propagation speed, thus the road structure is stratified, the base layer is empty, and the soft interlayer is nondestructive testing. It is advantageous for the construction side and the owner to check and evaluate the roads that have been repaired, At the same time, it can provide a certain reference value for the later maintenance and repair work. (3) the intelligent road roller carrying detection system and Rayleigh wave road nondestructive testing system are used in the construction of the third section of the middle line of Xinzheng South-to-North Water transfer Project, respectively. Field tests were conducted on the spot and a section of a highway in Boai County, Jiaozuo City, Henan Province. Compared with the traditional test methods, the results prove the reliability and feasibility of the two sets of intelligent detection system, and highlight the advantages of intelligence, nondestructive, convenient and fast. It not only meets the inspection requirements of the construction side and the owner to the intelligent testing instrument, but also provides a certain reference value for the future intelligent testing engineering. (4) the verification of the two sets of intelligent detection system through the field test. To make an assessment and a vision, It is hoped that the intelligent detection system can be advocated and applied in the real construction environment and contribute to the construction and maintenance of highway and water conservancy.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U415.521

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