中深孔爆破合理微差时间对块度分析的研究

发布时间：2018-05-16 14:28

本文选题：中深孔 + 微差时间　；参考：《贵州大学》2015年硕士论文

【摘要】：在城市建设中,爆破已成为无法替代的重要工程技术,且随着深入精细化控制爆破的概念,对爆破效果、成本控制要求越来越高,特别是块度大小控制直接影响着给砂石厂供料的施工质量、进度。岩石块度由多种因素综合影响,多年来已有大量国内外学者探究。合理微差时间是决定岩石块度的一个重要因素。大量的学者及爆破工作者对微差时间给予大量研究投入,但至今仍没有形成一个严密的让广大学者公认的合理微差时间定论且无便于工程实例计算的适用理论公式。再加上,以前爆破器材不够先进,对延时的精准度均不如现在新产品数码雷管对延时的控制。利用数码雷管为载体探讨合理微差时间与块度的关系,达到精细化控制爆破的目的指日可待。论文以合理微差时间的选择原理与原则、数码雷管高精确度性能及使用方法、Split-Desktop3.0软件对块度大小测量的可靠性为理论基础,再在贵州省毕节市赛德水泥厂石灰岩矿山爆破工程项目进行现场试验,探讨排间合理微差时间与孔间合理微差时间这两种合理微差时间对爆破块度之间的影响。运用正交试验方法,探讨排间合理微差时间与孔间合理微差时间两个因素在无微差、合理微差、微差过大三个水平下,哪个因素作用影响因子更大。最后论文大胆地提出大块率最佳的间隔时间原则的理论研究设想。本文利用现场试验得出贵州省毕节市赛德水泥厂石灰岩矿山爆破工程项目的合理微差时间和块度之间关系,并提出大块率最佳的间隔时间原则的设想,为相关微差时间和块度提高参考。
[Abstract]:In urban construction, blasting has become an irreplaceable important engineering technology, and with the further refinement of the concept of controlled blasting, the requirements of blasting effect and cost control are becoming higher and higher. In particular, block size control directly affects the construction quality and progress of the material supply to the sand and gravel plant. Rock fragmentation is influenced by many factors and has been explored by many scholars at home and abroad for many years. Reasonable millisecond time is an important factor in determining rock fragmentation. A large number of scholars and blasting workers have invested a lot in the study of differential time, but up to now, there is still not a strict theoretical formula for the reasonable differential time which is accepted by many scholars and is convenient for the calculation of engineering examples. In addition, the former blasting equipment is not advanced enough, delay accuracy is not as new products digital detonator delay control. Using digital detonator as the carrier, the relationship between the reasonable millisecond time and the degree of fragmentation is discussed, and the aim of fine controlled blasting is just around the corner. The paper is based on the principle and principle of selecting reasonable differential time, the high precision performance of digital detonator and the reliability of Split-Desktop 3.0 software for block size measurement. Field test was carried out in the blasting project of Sade cement Plant in Bijie City, Guizhou Province. The influence of reasonable millisecond time between row and hole on blasting fragmentation was discussed. In this paper, the orthogonal test method is used to study which factors are more important in three levels: no slight difference, reasonable slight difference, and slight difference in three levels: reasonable slight difference time between rows and reasonable slight difference time between holes. Finally, the paper boldly puts forward the theoretical research idea of the best interval time principle of bulk rate. In this paper, the relationship between the reasonable millisecond time and the block size of the blasting project in the limestone mine of Sade cement Plant, Bijie City, Guizhou Province, is obtained by field test, and the assumption of the principle of interval time for the best boulder rate is put forward. It can be used as a reference for correlation difference time and block size.
【学位授予单位】：贵州大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD235

【参考文献】