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我局是由解放前的一对矿井扩建而成的。解放后在毛主席革命路线指引下,劳动条件不断改善,生产规模也日益发展,于一九五八年开始实现机械作业。全局掘进岩巷大都为石英砂岩,游离二氧化矽含量很高,平均为57.6%。在文化大革命前,由于对矽尘危害认识不足,没有及时贯彻执行国务院《关于防止厂矿企业中矽尘危害的决定》,全岩掘进尽是搞干打眼,致使掘进工作面粉尘浓度曾高达1070毫克,极大的威胁着工人的身体健康。自一九六五年贯彻国经周字100号文件以来,我们遵照毛主席“在实施增产节约的同时,必须注意职
Our bureau was expanded from a pair of mines before the liberation. After the liberation, under the guidance of Chairman Mao’s revolutionary line, working conditions were continuously improved and the scale of production was also growing day by day. Machinery operations began in 1958. Most of the global tunneling rock quartz sandstone, free silica content is high, with an average of 57.6%. Before the Cultural Revolution, due to lack of knowledge about the hazards of silica dust, the State Council’s “Decision on Preventing the Dust from Silica in Factories and Mines” was not implemented in a timely manner. Whole rock excavation was done with drills, causing the dust concentration on the working face to have reached 1070 mg , A great threat to the health of workers. Since 1965, following the implementation of the document of the State Economic Weekly No. 100, we have followed Chairman Mao’s principle of "increasing production and saving, we must pay attention to