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本文介绍了一种创新性现场检测方法,在七段联锁混凝土路面砖路面(ICP)的试验情况。研究在四种不同结构情况下,2007年在滑铁卢大学的两个场地共建造了七段ICP路面,三段建造在路面和运输技术研究中心的试验性跑道上,四段建造在滑铁卢大学的环路上。试验的目的是评价路面使用性能,并最终为各种类型负荷条件的路面结构确定,提供设计准则。本项目由联锁混凝土路面协会(ICPI)提供资金,在加拿大安大略省滑铁卢大学路面和运输技术研究中心(CPATT)的指导下进行。在每段路面中都安装有各种感测器,用以监测路面在重型卡车和典型市政负荷下的性能,其中包括定量分析环境对性能影响的感测器。每间隔四小时采集一次数据,数据包括应力、应变和温度;用时域反射法探测水分,每周采集一次数据。所有七段试验路面的测试数据生成一个数据库,然后进行分析,以评估ICP路面结构的长期使用性能。在CPATT的试验跑道上,用动态称重法采集基于负荷组合的卡车负荷数据。另外,日常工作中还用便携式落锤测弯仪(PFWD)进行测试,以确定路面结构的现场工况。本文概括了七段试验性路面的设计、性能、测试仪器和初始性能;还提供七段试验性路面的原始数据和现场性能。这项研究仍在进展中,定期监测工作将持续三年时间。
This article presents an innovative on-site test method for testing seven-section interlocking concrete pavement (ICP). Study In four different structures, seven ICP sections were constructed at two sites at the University of Waterloo in 2007, three on the experimental runway at the Pavement and Transportation Technology Research Center, four on the ring at the University of Waterloo On the road The purpose of the test is to evaluate the performance of the pavement and eventually to determine the pavement structure for all types of load conditions and provide design guidelines. The project is financed by the Interlocked Concrete Pavement Association (ICPI) under the guidance of the University of Waterloo Pavement and Transport Technology Research Center (CPATT), Ontario, Canada. Various sensors are installed on each pavement to monitor the performance of the road under heavy-duty trucks and typical municipal loads, including sensors that quantitatively analyze the environmental impact on performance. Data is collected every four hours at intervals of stress, strain and temperature; time domain reflectometry is used to detect moisture and data is collected weekly. The test data for all seven sections of the test pavement generates a database that is then analyzed to assess the long-term performance of the ICP pavement structure. On the CPATT test runway, dynamic load is used to collect truck load data based on load combinations. In addition, the daily work using a portable drop weight bending instrument (PFWD) test to determine the pavement structure of the site conditions. This article outlines the design, performance, test equipment and initial performance of a seven-section test pavement, as well as the raw data and field performance of a seven-section test pavement. The research is still underway and regular monitoring will last for three years.