• Increased operational reliability, with more than one initiation point per drill introducing an additional level of redundancy into the system. In the event of failure of one of the baits, the remaining baits ensure continuity of detonation along the explosive column, significantly reducing the risk of unexploded holes (TQs) and their implications for safety and operational continuity. This multi-priming configuration was implemented and validated during field tests. The results indicated a notable improvement in the breakage efficiency and in the continuity of the detonation velocity (VOD) along the column, which shows better energy use of the explosive, which is shown in Figure 4. Figure 4 – VOD monitoring developed by the loading column with 3 baits. v. Initial cut results Three controlled blasts were carried out focused exclusively on the evaluation of cut, with the aim of validating the effectiveness of the mesh design and the detonation sequence used. In these tests, a strategy of progressive increase in delay times was used, starting from 40 ms. to a maximum of 150 ms. between holes, using electronic detonators. As a result, the highest feed of 7.70 m was achieved, achieving an efficiency of 96.25% in the cut test No. 3, in which a 150 ms. offset was applied between holes. The detailed results of each of the tests are presented in Table 3. Table 3 – Cut efficiency results for different sequencing. Testing Deviation Time Hole – Hole Time Cut Progress Efficiency Cut N°1 4.8% 40 ms. 185 ms. 1.5 m. 18.75% Cut N°2 3.0% 100 ms. 425 ms. 7.4 m. 92.50% Cut N°3 2.3% 150 ms. 600 ms. 7.7 m. 96.25% First 1 First 2 First 3
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