To investigate the cost-effectiveness of different maintenance treatments of highways in Jiangsu Province, the historical pavement maintenance records, traffic load information and pavement performance data in the pav...To investigate the cost-effectiveness of different maintenance treatments of highways in Jiangsu Province, the historical pavement maintenance records, traffic load information and pavement performance data in the pavement management system （PMS） are recorded and analyzed. Compared with the growth model, the linear model, the logarithm model and the exponential model, the cubic model has higher regression accuracy R2 and it can capture the sigmoid shape of the deterioration curve. So it is selected to simulate the pavement rotting development. The benefit over cost ratio is calculated to quantify the treatment cost- effectiveness. The analysis results show that thin hot mix asphalt （HMA） overlays and micro surfacing are more cost- effective than the. other two treatments on light and moderate traffic roads. Hot in-place recycling and thick HMA overlays have much longer service lives and greater cost-effectiveness under heavy or extra heavy traffic.展开更多
刚性路面指道路面层采用混凝土板的路面,采用素混凝土板或连续配筋板。火力发电厂一般采用素混凝土板,文中提到的刚性路面均指素混凝土板路面。本文运用美国国家高速公路和交通运输协会(AASHTO)规范体系中的Guide for Design of Pavemen...刚性路面指道路面层采用混凝土板的路面,采用素混凝土板或连续配筋板。火力发电厂一般采用素混凝土板,文中提到的刚性路面均指素混凝土板路面。本文运用美国国家高速公路和交通运输协会(AASHTO)规范体系中的Guide for Design of Pavement Structures(1993),结合菲律宾某电厂的交通构成、岩土地质特性、气候条件、排水条件等,对电厂道路设计中的各个设计参数进行分析和计算,确定刚性路面混凝土面层厚度为23cm,基层级配散粒材料厚度为20cm。本工程的设计实例,可为今后的涉外工程道路设计提供参考。展开更多
基金The Science and Technology Project of Jiangsu Provincial Communications Department(No.7621000078)
文摘To investigate the cost-effectiveness of different maintenance treatments of highways in Jiangsu Province, the historical pavement maintenance records, traffic load information and pavement performance data in the pavement management system （PMS） are recorded and analyzed. Compared with the growth model, the linear model, the logarithm model and the exponential model, the cubic model has higher regression accuracy R2 and it can capture the sigmoid shape of the deterioration curve. So it is selected to simulate the pavement rotting development. The benefit over cost ratio is calculated to quantify the treatment cost- effectiveness. The analysis results show that thin hot mix asphalt （HMA） overlays and micro surfacing are more cost- effective than the. other two treatments on light and moderate traffic roads. Hot in-place recycling and thick HMA overlays have much longer service lives and greater cost-effectiveness under heavy or extra heavy traffic.
文摘刚性路面指道路面层采用混凝土板的路面,采用素混凝土板或连续配筋板。火力发电厂一般采用素混凝土板,文中提到的刚性路面均指素混凝土板路面。本文运用美国国家高速公路和交通运输协会(AASHTO)规范体系中的Guide for Design of Pavement Structures(1993),结合菲律宾某电厂的交通构成、岩土地质特性、气候条件、排水条件等,对电厂道路设计中的各个设计参数进行分析和计算,确定刚性路面混凝土面层厚度为23cm,基层级配散粒材料厚度为20cm。本工程的设计实例,可为今后的涉外工程道路设计提供参考。
