减少爆后根底的对策

Countermeasures against Toes after Blasting

以在水泥矿山露天台阶式开采的经验和相关理论为主 ,分析了与产生根底有关的六个方面的原因 :地质条件恶劣、堵塞长度不足、抵抗线太小、装药量不足、超深不足、起爆技术不合理 ,并提出了相应的减少爆后根底的一些对策 ,并列举了一个工程实例。对采用爆破方法处理地基基础、路基路面和整平场地等相关行业会有一定的帮助。

Emphases were placed on working experience on surface bench mining in limestone mine and relevant theories. Six causes were analyzed, which are connected with toes after blasting: including geological condition, insufficience in terms of plugging length, burden, charge quantity and subdrilling, and unreasonable initiation technology. Corresponding countermeasures against toes after blasting were introduced. And an engineering example was given. This article will do good to the walks of life in taking measures to dispose of foundation and groundwork, roadbed and road surface, site bedding, etc.