在建筑物、设备、高压线和交通要道附近,用炸药爆破是不允许的。为此,我们开展了无声破碎剂(Soundless CrackingAgent简称SCA)的研究工作。1981年试验成功,1982年进行工业性试验,1983年3月通过部级鉴定。专家们一致认为,无声破碎剂的性能指标达到了目前国际上同类产品的水平。SCA是一种粉末状的物质,用水调制成浆体,浇灌在岩石或混凝土钻孔中,经过10～24小时,就可将岩石或混凝土在无振 Explosive blasting is not allowed near buildings, equipment, high-voltage lines and traffic arteries. To this end, we have conducted research on the Soundless Cracking Agent (SCA). The test was successful in 1981, industrial tests were conducted in 1982, and ministry-level appraisals were passed in March 1983. The experts agreed that the performance indicators of the silent breaker have reached the level of similar products in the world. SCA is a powdery substance that is slurried with water and poured into rock or concrete boreholes. After 10 to 24 hours, rock or concrete can be shaken.