boulder blasting 中文意思是什麼
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Some measures for reducing the rate of large boulder in bench blasting of open - pit are introduced in combination with bench blasting operation, dealing with blasting parameter, blasting materials etc. in yunfu pyrite mine
摘要結合雲浮硫鐵礦臺階爆破生產實踐，從影響爆破作用的爆破參數和爆破材料等因素出發，介紹了降低臺階爆破大塊率的幾種途徑。 -
During the deep - hole blasting for the excavation of guishan quarry for construction of baoquan pumped storage hydropower station, the blasting powder factor and the charging concentration of the blasting powder in the rock are reasonably controlled, and then the rate of blasting chunk is greatly decreased with the reduction of the working amount of the boulder blasting afterwards in conjunction with the suitable excavator and crusher etc
摘要在寶泉抽水蓄能電站工程龜山料場開挖的深孔爆破中，合理控制了爆破單位耗藥量和炸藥在巖石中的集中度，最大限度地降低了大塊率，並結合使用適宜的開挖及破碎機械等措施，從而減少了二次爆破工作量。 -
The influence of specific charge, hole arrangement, charge structure, stem length, millisecond interval and ignition mode on the yield of the blasted boulder is analyzed some measures to lower boulder yield in deep hole blasting of underground mine are presented through the optimization of blasting operation parameters as follows : lowering deep hole blasting effect of geology structure, rationally determining specific charge, using technique of wide - space small burden blasting, technique of manifold charge structure and technique of millisecond compression blasting, strengthening the management of boring construction and blasting construction
該優化技術措施主要有：減少地質構造對深孔落礦的影響，合理確定炸藥單耗的方法，使用大孔距小抵抗線落礦技術，採用多種裝藥結構技術，採用多排微差起爆技術，加強深孔的施工管理和加強爆破施工的現場管理。 -
To lower blasted boulder yield is one of the most important technical considerations in deep - hole blasting operations of mine
摘要降低深孔爆破落礦大塊率是礦山鑿巖中的一個重要課題。
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