期刊
WASTE MANAGEMENT
卷 134, 期 -, 页码 159-169出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2021.07.025
关键词
Building demolition waste; building information modeling (BIM); Waste estimation; Environmental impact; life cycle assessment (LCA)
资金
- National Natural Science Foundation of China [71901062]
- Natural Science Foundation of Jiangsu Province, China [BK20190377]
This study combines BIM, GIS, and LCA to develop a system for estimating and evaluating building demolition waste, allowing for automated waste estimation and impact evaluation at the design stage. The system can help understand and minimize the potential environmental impacts of building demolition waste.
The amount of building demolition waste produced in China is large, and waste treatment processes discharge many pollutants. Pre-evaluating waste's environmental damage at the design stage of building projects could provide an opportunity to understand and minimize potential environmental impacts. Tools that can conveniently estimate the amount of demolition waste and quantify its impacts are lacking. This study combines building information modeling (BIM), geographic information system (GIS), and life cycle assessment (LCA) to develop an estimation and evaluation system for building demolition waste. In this system, BIM digitizes the specific characteristics of the evaluated buildings and provides geometric and semantic information for waste estimation. GIS offers geographic information regarding waste treatment plants and landfill site, and is used to design waste transportation routes. LCA provides an environmental impact assessment framework and quantifies ecological damage impacts and resource depletion impacts due to demolition waste. The system includes five modules, which form the basis of an automated calculation tool. The evaluation tool can quickly quantify the amount of waste and assess its impacts, while achieving automated waste estimation and impact evaluation after a building is designed. A building in a middle school is taken as a case study to demonstrate and verify the system. This study provides an operable tool for waste evaluation and management at the design stage. With the increasing application of BIM technology in the construction industry, this tool is expected to gain popularity and promote efficient waste management.
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