水利水电技术2017，Vol.48Issue(4)：90-98,9.DOI:10.13928/j.cnki.wrahe.2017.04.017
高寒地区抽水蓄能电站地下厂房施工期通风、保暖、散烟系统研究
Study on ventilation-thermal insulation-smoke dispersion system for construction period of pumped storage hydropower station in alpine region
摘要
Abstract
By taking the construction of the underground powerhouse of Fengning Pumped Storage Hydropower Station as the study object,the ventilation during the construction period of the cavern group of the pumped storage hydropower station is divided into three phases,i.e.Phase Ⅰ ventilation,Phase Ⅱ ventilation and Phase Ⅲ ventilation in accordance with the break-through order of all the caverns;for which different schemes are designed for different phases.A cold-proof-thermal insulation-smoke dispersion system for the construction in tunnel during winter within an alpine region is studied and designed;by which the ventilation is made with the mode of combining the duct ventilation with the natural ventilation.The in situ application effect is obvious:the concentrations of dusts and harmful gases at all the excavation faces and construction sections are largely lowered in a short period,i.e.the dust concentration near the passage of construction section is lowered below 10 mg/m3 and more,while the dust concentration incoming into the main passage of the ventilation adit is even lowered below 5 mg/m3 and more.Thus,the orderedly flowing and renewing of the air-flows in all the construction phases in the cavern group during the construction period are realized,and then the construction cost is lowered,the construction quality is ensured and a better construction environment is created as well The study provides an experience reference for the construction of the similar hydropower station in alpine region.关键词
高寒地区/抽水蓄能电站/冬季施工/防寒保暖散烟系统/管道通风/自然通风Key words
alpine region/pumped storage hydropower station/winter construction/cold-proof-thermal insulation-smoke dispersion system/duct ventilation/natural ventilation分类
建筑与水利引用本文复制引用
费万堂,马雨峰,王兰普,陈磊,王波,高昌炎..高寒地区抽水蓄能电站地下厂房施工期通风、保暖、散烟系统研究[J].水利水电技术,2017,48(4):90-98,9.基金项目
国家自然科学基金(51404105) （51404105）
河北省自然科学基金(E2015508047) （E2015508047）
中央高校基本科研业务费资助(3142016034 （）
3142015085) （）
