山区大型变电站噪声预测优化方法  

Refining methods of noise prediction of large-scale substations in mountain regions

作　　者：严青[1] 张超 Yan Qing;Zhang Chao(Sichuan Electric Power Design&Consulting Co..Ltd.,Chengdu Sichuan 610041,China;Environmental Engineering Assessment Centre of Tibet,Lhasa Tibet 850000,Chinas)

机构地区：[1]四川电力设计咨询有限责任公司,四川成都610041 [2]西藏自治区环境工程评估中心,西藏拉萨850000

出　　处：《环境与发展》2020年第12期125-127,共3页Environment & Development

摘　　要：我国大型山区变电站噪声预测存在地形处理粗糙、噪声预测耗时长、声源简化程度大等问题,为解决这些问题,提出了三种噪声预测优化方法,包括基于土石方平衡图的地形分区修正技术、构建噪声接受点进行噪声计算、对大型变电站将主要声源简化为体声源。通过应用噪声预测优化方法,可有效解决山区大型变电站预测过程中存在的问题,缩短噪声预测耗时,提高噪声预测的准确率。In order to tackle the problems in noise prediction of domestic large-scale substations in mountain regions such as inaccuracy of contour disposal,timeconsuming noise calculation and being oversimplified of sources,three refining methods were proposed,including partition correction technique based on earthwork balance diagram,building noise receivers and simplifying main sources as volume sources.It reveals that he problems can be tackled effectively by applying the refining methods,which,moreover,will shorten the time of noise prediction and promote accuracy rate of prediction.

关 键 词：大型变电站 山区 地形修正 噪声预测 优化 

分 类 号：X839[环境科学与工程—环境工程]