摘要
我国建筑业全生命周期碳排放占全国的51.2％,已成为实现"双碳"目标的关键因素.以浙江省常见的两种海堤为例,以迎潮侧护面结构碳排放为目标,基于全生命周期理论对其进行研究.通过设定护面结构碳排放阶段、确定材料与机械设备碳排放系数、计算不同材料性质的结构碳排放系数、统计护面结构工程量,最终计算形成生产建造阶段、使用维护阶段、拆除阶段及全生命周期的碳排放.分析可知,研究目标具有对以合成材料为主的结构工程量最为敏感、主要发生在生产建设阶段、受拆除阶段材料回收率及回收量影响较大等特点.
Abstract
The life cycle carbon emission of buildings accounts for 51.2％ of the total carbon emission in China,and it has become a key factor in accomplishment of dual carbon goal.Taking two common seawall of Zhejiang Province as an example,the carbon emissions of seawall was researched based on the theory of whole life cycle.The armor structure car-bon emission calculation stages were set,the carbon emission coefficients of materials and equipments were determined.The carbon emission coefficients of different structures were computed,and engineering work of structures was compu-ted.And then the production and construction stage,demolition stage,operation stage,and life cycle carbon emissions were analyzed.It is shown that the life cycle carbon emissions of seawall armor structure embodies the features,such as the most sensitive to the structures made from synthetic materials,happened in production and construction stage,and the considerable influence of recovery percent and quantities of structure in operation stage.
NETL
NSTL
维普
万方数据