某高敏感区域老填埋场开挖天幕系统工程设计

Engineering Design of Canopy System for Excavation of Old Landfill in a Highly Sensitive Area

摘要:

为妥善解决存量垃圾开挖阶段的扬尘扩散、臭气逸散等邻避敏感问题，通过对我国南方某高敏感区域老垃圾填埋场的研究分析，研发设计单榀支撑结构（由填埋场短跨两端的钢结构塔架及连接塔架的钢缆构成）的天幕系统。该系统集成可开闭防尘网、除臭喷淋装置和信息化控制单元，在开挖作业中兼具防尘、除臭与视线阻隔功能，有效实现了“降尘+除臭”双重智能化管控。设计成果可为同类型填埋场的垃圾开挖工程提供技术参考，提升高敏感区域填埋场的环境修复效率。

Abstract:

To properly address the NIMBY sensitive issues such as dust diffusion and odor escape during the excavation stage of existing garbage, a canopy system featuring a single-bay support structure (composed of steel structure towers at both ends of the short span of the landfill and the steel cables connecting the towers) is developed and designed through the research and analysis of an old municipal solid waste landfill in a highly sensitive area of southern China. This system integrates a dust-proof net able to be opened and closed, a deodorizing spray device and an information-based control unit, and simultaneously has the functions of dust prevention, deodorization and sight shielding during excavation operations, which effectively achieves the dual intelligent management and control of “dust suppression and deodorization”. The design results can provide the technical reference for garbage excavation projects of similar landfills and enhance the environmental remediation efficiency of landfills located in highly sensitive areas.