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北京市周口店花崗石厂在技术革命运动中,党委書記亲自掛帅,依靠羣众,种試驗田,試驗成功了“松动爆破法”。用这种方法开采花崗石,不但減輕了工人的劳动强度,而且生产效率提高了10倍。在最初的几次試驗中,由于炮限打的不整齐,使用的炸药药性太烈,以及下药多少掌握不准等原因,发生了放瞎炮,岩石破碎不成料或石块有裂紋等現象。針对这些情况,經羣众討論、研究与試驗,纠正了上述的原因,这样就試驗成功了。每放一次炮,就能按着成排的炮眼,把几十到几百立方公尺的大块岩石切开。現将用这种方法开采花崗石的工艺操作过程介紹如下: 一、松动爆破割大縫1.在爆破前必須詳細的观察山場的具体条件沂牟憷怼⑵怼⒆杂擅娴亩嗌僖约把沂暮穸鹊扔氡瓶傻墓叵岛艽蟆W杂擅娑嗔司腿菀妆?可
In the technological revolutionary movement of the Zhoukoudian granite factory in Beijing, the secretary of the party committee personally led the team, relying on the masses, planting experimental plots, and successfully experimenting with the “loose blasting method”. Mining granite using this method not only reduces the labor intensity of the workers, but also increases production efficiency by 10 times. In the first few trials, due to the irregularities in the shot limits, the explosiveness of the used explosives, and the inaccurate control of the number of drugs to be taken, the occurrence of turbulence occurred and the rocks were not broken or cracked. For these situations, the people discussed, researched, and tested to correct the above reasons, and the test was successful. Each time a shot is fired, it is possible to cut a large number of rocks ranging from tens to hundreds of cubic meters in line with the rows of boreholes. The process of mining granite using this method is now described as follows: 1. Loose blasting to cut large joints 1. Before blasting, it is necessary to observe the specific conditions of the mountain field in detail. (2) 怼 (19) The mu slapped the crickets and shrewd the bottles, and the silly tombs and islands were mixed.