针对现阶段商业楼宇碳排放监测精准度较低的问题,提出基于最小二乘支持向量机的分类和回归算法(Least Squares Support Vector Machine,LSSVM)的商业楼宇碳排放量动态监测方法。获取碳排放量数据并计算碳排放指标,设计基于LSSVM算法的...针对现阶段商业楼宇碳排放监测精准度较低的问题,提出基于最小二乘支持向量机的分类和回归算法(Least Squares Support Vector Machine,LSSVM)的商业楼宇碳排放量动态监测方法。获取碳排放量数据并计算碳排放指标,设计基于LSSVM算法的商业楼宇碳排放量动态监测流程,实现对商业楼宇碳排放量的动态监测。通过设计对比实验,表明该研究方法监测精准度更高,具有更好的监测效果。展开更多
The determination of carbon emission from foundation pit engineering is a tough and complex project owing to its characteristics including large material consumption,short use time,difficult recycling and no operation...The determination of carbon emission from foundation pit engineering is a tough and complex project owing to its characteristics including large material consumption,short use time,difficult recycling and no operation stage.To overcome these limitations,the calculation boundary and calculation method for carbon emission of foundation pit project are defined in this paper,which is successfully applied in the carbon emission analysis of the actual engineering project,i.e.the construction of large-scale foundation pit of Kunming comprehensive transportation international hub.All the carbon emissions coresponding to four working stages including building materials production,building materials transportation,construction and demolition were calculated and anatomized.The results revealed that the content of CO_(2) released in the stage of building materials production accounts for 89.3%of the total carbon emission,which means the amount of building materials consumed in the engineering project is the crucial factor to control the carbon emission.Besides,two kinds of carbon reduction measures,i.e.optimization design of support scheme and recycling waste materials of internal support demolition,were explored by analyzing the proportion and average value of carbon emission from different sub project of the support structure.A pronounced effect of carbon reduction was achieved.Furthermore,both a fast calculation method of carbon emission factor of unit work volume and general carbon reduction measures are proposed in this paper,which could provide a reference and new viewpoint for the engineers and designers to calculate and analyze the carbon emission and to take effective carbon reduction measures.展开更多
文摘针对现阶段商业楼宇碳排放监测精准度较低的问题,提出基于最小二乘支持向量机的分类和回归算法(Least Squares Support Vector Machine,LSSVM)的商业楼宇碳排放量动态监测方法。获取碳排放量数据并计算碳排放指标,设计基于LSSVM算法的商业楼宇碳排放量动态监测流程,实现对商业楼宇碳排放量的动态监测。通过设计对比实验,表明该研究方法监测精准度更高,具有更好的监测效果。
基金supported by Science and Technology Program of the Ministry of Housing and Urban-Rural Development[2022-S-031]CSCEC1B Technical and Development Plan[Grant No.CSCEC1B-2021-33].
文摘The determination of carbon emission from foundation pit engineering is a tough and complex project owing to its characteristics including large material consumption,short use time,difficult recycling and no operation stage.To overcome these limitations,the calculation boundary and calculation method for carbon emission of foundation pit project are defined in this paper,which is successfully applied in the carbon emission analysis of the actual engineering project,i.e.the construction of large-scale foundation pit of Kunming comprehensive transportation international hub.All the carbon emissions coresponding to four working stages including building materials production,building materials transportation,construction and demolition were calculated and anatomized.The results revealed that the content of CO_(2) released in the stage of building materials production accounts for 89.3%of the total carbon emission,which means the amount of building materials consumed in the engineering project is the crucial factor to control the carbon emission.Besides,two kinds of carbon reduction measures,i.e.optimization design of support scheme and recycling waste materials of internal support demolition,were explored by analyzing the proportion and average value of carbon emission from different sub project of the support structure.A pronounced effect of carbon reduction was achieved.Furthermore,both a fast calculation method of carbon emission factor of unit work volume and general carbon reduction measures are proposed in this paper,which could provide a reference and new viewpoint for the engineers and designers to calculate and analyze the carbon emission and to take effective carbon reduction measures.
