关键词: 切割, 爆破, 切采一体化技术, Simba 1354台车, 导向钻管, 导向钻头

Abstract: The pillarless sublevel caving method is currently used in Huashugou Iron Mine of Jingtieshan.The adoption of the artificial digging and cutting raise in this method causes high tunneling cost，high labor intensity，poor and dangerous working environment.In order to solve the problems of artificial digging and cutting raise，taking the cutting process of the pillarless sublevel caving as the research object，a cutting and mining integrated technique was developed through the theoretical analysis on the blasting parameters，the empirical formula or engineering analogy，and the engineering tests.The measures of reducing the deviation of medium depth drilling with Simba 1354 trolley，technical measures for construction of 127 mm empty holes by Simba 1354 drilling rig，technical measures of millisecond blasting control were studied.The high precision borehole by guide tube and the reaming hole by the reaming bit realized the function of large diameter empty hole.The mechanized operation of cutting process in pillarless sublevel caving method was realized to instead of manual digging and cutting process.The implementation of the cutting and mining integrated technology reduces the labor intensity of workers，improves the working environment，avoids from the harm of occupational diseases caused by cutting process，and promotes social harmony and stability.

Key words: Cutting, Blast, the cutting and mining integrated technology, Simba 1354 trolley, Guide tube, Guide bit