井巷掘进微差爆破合理间隔时间模型试验研究THE MODEL STUDY ON RATIONAL DELAY OF MILLISECOND BLASTING IN STONE DRIFTING
徐颖，刘积铭，付菊根
Xu Ying;Liu Jiming;Fu Jugen(Huainan Mining Institute,Anhui 232001)
摘要(Abstract)：
根据相似原理和ＬｉｖｉｎｇｓｔｏｎＣＷ爆破漏斗理论进行实验室模拟试验得出最佳爆破参数，以此参数为条件进行５种不同延迟间隔时间的模型试验，求得破碎效果最佳的微差间隔时间为４０～７０ｍｓ，并为现场工业试验所验证。
Optimal blasting parameters is derived through modelling tests in laboratary based on similarity law and Livingston blasting crater theory.Based on these parameters,some modelling tests on blasting with five different delay times have been carried out which shows that the optimal delay for breakage is 40～70ms.The result has a good agreement with practice.
关键词(KeyWords)：
爆破漏斗，微差爆破，合理间隔时间
Blasting crater Millisecond blasting Rational delay time
基金项目(Foundation):
作者(Authors):
徐颖，刘积铭，付菊根
Xu Ying;Liu Jiming;Fu Jugen(Huainan Mining Institute,Anhui 232001)