Deep Hole Blasting In A Reasonable Differential Time On The Block Analysis

In urban construction, has become an irreplaceable important engineering blasting technology, and with further refinement, the concept of controlled blasting, the blasting effect, cost control demand is higher and higher, especially the fragmentation size directly affects the control to feed sand factory construction quality, progress. Comprehensive degree of rock by a variety of factors, over the years has been a large number of domestic and foreign scholars to explore.A reasonable differential time is an important factor of degree of rock. A large number of scholars and blasting workers to differential in time to give a lot of research, but still did not form a tight let many scholars accepted conclusion reasonable differential time and facilitate the application of the engineering calculation of theoretical formula. Plus, before blasting equipment is not advanced, precision of time delay are now than new product digital control of the delay detonator. Using digital detonator as a carrier to explore a reasonable differential time and the relationship between the blocks, achieve the purpose of fine control blasting just around the corner.Papers at a reasonable differential time choice principle and principle, the performance of high accuracy digital detonator and method of use, the Split- Desktop3.0 the reliability of the software on the block size measurement as the theoretical basis, and then in the guizhou province bijie city saide cement limestone mining blasting project in field test, explore a reasonable differential time line between the hole and the reasonable differential time these two kinds of reasonable millisecond time of blasting effect between blocks. With the orthogonal experiment method, this paper discusses reasonable differential time and hole between two reasonable differential time between two factors in the absence of differential, reasonable differential and differential level of the big three, which factors influence factor is bigger. Final paper rate of blasting chunk is boldly put forward the best interval theory to study the principle of ideas. Based on field experiment it is concluded that the guizhou province bijie city riverside, cement limestonemine reasonable millisecond time of blasting engineering projects and the relationship between blocks, and puts forward the design of large rate is the best time interval principle, for the relevant differential time and improve the reference blocks.