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通过长大(470m)路堑石方203排3080孔一次性深孔拉槽控制爆破实践,解决了超多排、超多孔深孔爆破设计中的难题,积累了完整的施工经验,具有较大的参考价值。
Through the control of blasting practice of long row of deep hole (470m) 203 rows of 3030 holes of deep rock cut (470m), the problems in the design of ultra-multi-row and super-porous deep-hole blasting are solved and the accumulated construction experience is accumulated. Reference value.