摘要
公路的预防性养护中,养护时机的选择至关重要。养护短期效用模型的建立为养护时机和养护策略的选择提供了新思路。该模型旨在建立各种预养护措施在不同类型道路、不同交通状况路段、不同养护时间的效用数据库,其建立要基于大量相关的路况调查数据。我国现阶段高速公路沥青混凝土路面使用性能评价指数采用PQI,其包含4项指标:PCI、SSI、RQI、SFC,在效用模型建立过程当中若按此进行路况性能的评价,数据采集势必存在规模大、间隔周期短、每次延续时间长等问题。基于此,尝试提出采用以平整度IRI表征的RQI作为高速公路沥青混凝土路面路况评价的单一指标,以简化数据的采集过程,保证调查数据的时效性。最后用灰关联法验证了其可行性。
The choice of appropriate time is very （PPM）. The establishment of effectiveness models of crucial to the preventive maintenance of pavements maintenance provides the new ways for PPM. The models purpose to establish the effectiveness database of all kinds of preventive maintenance measures with different type roads ,different traffic status sections and different maintenance times ,its foundation will be based on large numbers of performance survey data of pavements. In China,the index of PQI is used to evaluate the performance of pavements in expressway nowadays, it includes 4 indexes： PCI,SSI, RQI, SFC,if it runs its course in the process of establishing effectiveness models of maintenance,it will emerge some issues in data collecting, such as large scale of data, shortness of interval cycle, long lasting of one time, and so on. Considering the effectiveness models attach much importance to the timeliness of survey data, so it attempts to present the single index of RQI related to the smoothness index IRI as the evaluation index ,it will also predigest the process of data collection. Last ,the feasibility of the measure is verified by the gray correlation analysis method.
出处
《公路》
北大核心
2007年第6期186-189,共4页
Highway
关键词
高速公路
沥青混凝土路面
养护效用模型
性能跳跃
恶化速率下降
评价指标
灰关联分析
expressway asphalt concrete pavement effectiveness models of maintenance performance jump（PJ）
deterioration rate reduction（DRR）
evaluation index
gray correlation analysis
