Analysis of Solid Waste Material Flow and Prediction of Production and Discharge on Highway in Hunan Province
In order tobuild and developthe highway system ecological and green.The material flow analysis of highway solid waste in Hunan Province was carried outonthebasis of the material flow analysis and highway mileage stock and major and middle repair data,combined with MATLAB,origin and other data analysis and processing platforms.A forecasting model of highway solid waste production and discharge was established.The results of material flow analysis show that the main solid waste of local roads in Hunan Province in recent years is waste cement concrete,accounting for about 75％,and the rest is recycledasphalt pavement(RAP).Themainsolidwasteforhighway ismainly RAP,accounting for 76％,andthe rest is waste cement concrete.In terms of production scheduling forecast,this paper sets up four life scenarios for analysis,i.e.,short life(6 years),medium life(10 years),medium long life(20 years)and long life(30 years),and the variation law of highway solid waste output in the future was predicted.The results show that the stock of local roads and expressways will reach saturation in 2031 and 2050,respectively,reaching 451 137 km and 11 180 km.Under the short life scenario,the mileage of local roads and expressways will peak around 2028 and 2022,reaching 3 210 km and 534 km,respectively.Under the long life scenario,the mileage of local roads and expressways will peak later and fluctuate morewidely.Under the four scenarios of short life,medium life,medium long life and long life,the local road solid waste production will reach the first small peak in 2028,2029,2037 and 2046,which were 6.52 million tonnes,4.47 million tonnes,2.91 million tonnes and 2.8 million tonnes,respectively.Then the volume of local road solid waste shows a fluctuating trend.In 2022,2024,2032 and 2043,the quantityof expressway solid waste will reach the first small peak,which is 2.38 million tonnes,1.83 million tonnes,1.4 million tonnes and 1.1 million tonnes respectively.After that,the volume of expressway solid waste showsaa fluctuating trend.combined with the research results,the short life scenario is more consistent with the actual situation of road solid waste production in Hunan Province,which means that China's roads have entered the peak period of major and medium repair.
NETL
NSTL
万方数据
