斜煤井天然采光初步研究

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.

AN INITIAL RESEARCH ON DAYLIGHTING IN AN INCLINED CAOL SHAFT

We have made a testing research for daylighting in an inclined coal shaft which is about 700-meters long. The coal shaft sellected is a sample of narrow underground structures. When the result of research is gained, it will be used in projects of this kind.The major means of introducing daylight into the shaft is an engineering heliostat, which has an effective aperture of 2.4M and which has already been made by us. In addition, Several other engineering heliostats have been disigned and put to the technoligical test.They are desirable to be produced in quantity and applied for a lot of kinds of underground building.It has been done to compare the effect of daylighting in the shaft with its theoratical estimates.Apart from mentioned adove, some problems concerned with engineering thermophsics and fluid mechanics, such as variation of light field and specturm extinction of medium, temperature distribution and so on are also concerns of great importance in our testing design and therefore, receive some attention in this thesis.