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我们在一条700米长斜煤井上进行了天然采光试验研究工作.选矿井为试验基地,主要是把它作为窄长型地下建筑空间的代表,取得初步经验再推广到同类型的建筑空间中使用.主要采光手段是工程定日镜,研制成一台2.4米有效口径大型工程定日镜.另外还设计出几种型号的工程定日镜,并作了工艺试验,它们适宜批量生产供各类地下建筑天然采光使用.对矿井巷道内照明结果和理论估算值作了对照.还存在着光场、流场、温度场、介质消光和光谱分布变化方面一些问题,本文一一作了分析,简介了采取的部分措施.
We conducted a natural daylighting test on a 700-meter-long inclined coal mine, a beneficiation mine, which is mainly used as a representative of the long and narrow underground construction space and gained preliminary experience before being extended to the same type of construction space The main means of lighting is engineering heliostats, developed into a 2.4 m effective diameter large-scale engineering heliostat.Also designed several types of engineering heliostats, and made a technical test, they are suitable for mass production for all types of underground The construction of natural lighting use.Through the mine tunnel lighting results and theoretical estimates are compared.Also there are some problems in light field, flow field, temperature field, medium extinction and spectral distribution changes, the paper analyzed one by one, the introduction Some measures taken.