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我矿1958年上半年在广泛开展防止矽尘危害工作的同时,为了有效地解决凿岩工作的防尘問題,以科学的方法正确地采取通风措施来达到防尘的目的,我們特地作了数次試驗工作:对于坑內凿岩工作形成矿尘过程作了仔細的观察,并对于各种不同通风方法和通风强度对防尘的效果問題,作了周密地分析測定。这次試驗地点选擇在我矿第八中段002独头巷道內,巷道全長300公尺左右,在中途180公尺处有一通风天
In the first half of 1958, our mine extensively started the work of preventing the harm of silica dust. In order to effectively solve the dust-proofing problem of rock drilling work and properly adopt the ventilation measures in a scientific way to achieve the purpose of dust prevention, Sub-test work: A careful observation was made on the formation of dust during the operation of the rock drill in the pit. The effect of various ventilation methods and ventilation intensity on dust prevention was carefully analyzed and determined. The test site selection in the mine in the eighth middle of the 002 single-lane roadway, the total length of about 300 meters roadway, midway 180 meters at a ventilation day