基于层次分析法的有砟轨道精测精捣作业效果综合评价

Comprehensive Evaluation of Ballast Track Precise Measurement and Precise Tamping Performance Based on the Analytic Hierarchy Process

摘要:

为构建全面而科学的有砟轨道精测精捣作业效果综合评估体系，综合考虑轨道质量改善、轨道质量追踪、轨道波长能量改善和车辆动态响应4个方面，建立了精测精捣作业效果综合评估体系；结合当前检测手段和精测精捣作业特点，提出了9项评价指标；基于大量的轨道几何检测数据及车体响应数据统计分析，结合现有管理标准，针对不同的评价指标将其划分成6个等级；采用层次分析法，结合专家打分和评议，明确了不同评价模块和评价指标的权重，提出了一种基于层次分析法的精测精捣作业效果综合评价方法。通过实例分析，对比了3个工务段的不同精测精捣模式作业效果。分析结果表明，工务段1作业效果最好，其次为工务段3和工务段2。该方法能够应用于不同精测精捣维修区段的效果评价、不同维修作业模式的效果对比分析，科学指导现场作业模式的选择，为科学、系统地评价精测精捣作业效果提供依据。

Abstract:

To establish a comprehensive and scientific evaluation system for the operational performance of precise measurement and precise tamping （PMPT） on ballasted tracks， taking into account four aspects： track quality improvement， track quality tracking， track wavelength energy improvement， and vehicle dynamic response， a comprehensive evaluation system for the operational performance of PMPT is established. Considering current inspection methods and the characteristics of PMPT operation， nine evaluation indicators are proposed. Based on extensive statistical analysis of track geometry inspection data and vehicle response data， and in accordance with existing management standards， these indicators were classified into six grades. Using the analytic hierarchy process （AHP） combined with expert scoring and evaluation， the weights for different evaluation modules and indicators are determined. A comprehensive evaluation method based on AHP is proposed for assessing the operational performance of PMPT. Through a case study， the operational performance of different PMPT modes from three track maintenance divisions is compared. The analysis results indicate that the operational performance of track maintenance division 1 is the best， followed by track maintenance divisions 3 and 2. This method can be applied to evaluate the performance of different PMPT sections， compare and analyze the performance of different maintenance operation modes， scientifically guide the selection of on-site operation modes， and provide a foundation for the scientific and systematic evaluation of the operational performance of PMPT.