Research On Resource Utilization Of Construction Waste In Jinan City

In recent years,with the development of urbanization in Jinan,the scale of construction industry is developing rapidly,and the output of construction waste is increasing rapidly.The huge output of construction waste has a great pressure on the city's ecological and living environment.For a long time,the disposal of construction waste in Jinan is mostly in the form of extensive open-air stacking and landfill,and a dozen construction waste landfills in the urban area are nearly saturated,resulting in increasingly serious problems such as land occupation and environmental pollution.Since the 18 th National Congress,general secretary Xi Jinping stressed many times that”Lucid waters and lush mountains are invaluable assets”.Under the guidance of sustainable development strategy,green development,low-carbon development and circular development concept,it is urgent to develop the resource utilization of construction waste.Based on the official statistical data of building area in Jinan statistical yearbook,this paper calculates the approximate output of building waste in Jinan from 2011 to 2018,which shows the huge output of building waste and the huge pressure on the environment in recent years.Based on the investigation of the current situation of the discharge,transportation,consumption and resource utilization of construction waste,this paper analyzes the difficulties and problems faced by Jinan City in developing the resource utilization of construction waste,such as the imperfect policy system,the implementation of supporting measures,the low efficiency of multi management,the enhancement of technical level and the improvement of development enthusiasm.Based on the analysis of the successful experience of the utilization of urban construction waste resources in Japan,South Korea,Germany and some domestic cities,16 initial influencing factors were selected and a network questionnaire was designed with the help of Likert scale.Based on the idea of critical success factor analysis,the paper uses spssau online data platform to conduct principal component analysis on the survey data,and determines the key factors restricting the development of Jinan construction waste resource utilization,including the contribution degree and external objective conditions of each participant to the construction waste resource utilization.According to the key influencing factors,difficulties and problems in the development of construction waste recycling in Jinan City,this paper puts forward some corresponding countermeasures and suggestions,such as improving the policy system,implementing supporting measures,changing the concept of investment,improving the market competitiveness,strengthening cooperation,improving the level of recycling technology,increasing publicity,and enhancing the enthusiasm of all sectors of society to participate in the recycling.