blasting efficiency 中文意思是什麼
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The controlling parameters for smooth blasting in qin - ling zhongnanshan tunnel project are optimized according to the fundamental principle of smooth blasting, considering the minimal resistance, coefficient of embrasure density, coefficient of non - coupling, density of dynamite and rate of exploding. the efficiency of this method has been analyzed and justified by the high speed and good quality of the project
根據光面爆破的基本原理，從最小抵抗線、爆眼密集系數、不耦合系數、線裝藥密度、爆破進尺等幾個方面確定秦嶺終南山隧道光面爆破主要參數的選取，分析了該隧道鉆爆設計在隧道施工中的運用取得的成效，提高了施工進度，同時也保證了施工質量。 -
The conventional methods for mining such seams including the longwall blasting and block caving suffer form the drawbacks of being low in recovery, high in labor intensity and low in efficiency. after shifting to the use of the fully - mechanized extraction system by the zhaogezhuang branch mining industry co. of kailuan ( group ) co., the mining of the pitching seams has met with remarkbable social and economic result
針對大傾角煤層長壁炮采、落垛等採煤方法，存在回採率較低、員工勞動強度大、高產高效受限及安全等諸多問題，開灤（集團）趙各莊礦業分公司在探討大傾角煤層採煤工藝的改革及實踐大傾角煤層綜合機械化採煤過程中，取得了較好的社會經濟效益。 -
The main advantage is depressing the explosive quantity and minishing the destroying to the construction foundation. meanwhile, which can improve the blasting effect, made the rock fragment more uniformly, and improve the blasting efficiency
它的主要優點是可降低炸藥單耗，減小對建基面的破壞；改善爆破質量，使破碎塊度更加均勻，從而提高爆破效率。 -
Sum up the experiences of high yield and efficiency face at big angle blasting mining face
大傾角炮采工作面高產高效經驗總結 -
The method can adjust the blasting process, including reducing the climax pressure, prolonging the time of blasting action, minishing the shatter area and improving the utilizing efficiency
這種爆破技術能很好地調節爆破過程，降低爆破峰值壓力，延長爆破作用時間，減小粉碎區的形成，提高爆破能量利用率。 -
Test and study on increasing the blasting efficiency of underhand cutting and filling method in hexagon stope in longshou mine
提高龍首礦下向六角形進路式采礦爆破效率試驗研究 -
In the light of the change of the rock mass structure and blasting conditions and the application of new explosives in lanjian iron mines pit, tests were carried out on charges loading structure, blasting hole spacing pattern parameters and blasting methods. the optimized rational blasting parameters greatly improved the blasting efficiency, which led to good economical benefits
針對蘭尖鐵礦采場巖體結構、爆破條件等的變化及新型炸藥的使用，開展了裝藥結構、爆破孔網參數及爆破方法試驗，優化確定了合理的爆破參數，使爆破效率大幅提高，取得了良好的經濟效益。 -
High productivity and efficiency measurment in working face of thin coal seam with blasting
薄煤層炮采工作面高產高效措施 -
Discovery and practice on high output and high efficiency of blasting mining face in thin coal seam
薄煤層炮采工作面高產高效的探索與實踐 -
Aiming at high design requirement and great technical difficulties, construction methods such as blasting control, excavating and mucking in the tunnel and grout injection in the holes with anchor have been improved on so as to advance construction efficiency, quicken construction schedule and increase economical benefits finally
針對此工程設計要求高、技術難度大等特點，對爆破控制、洞室開挖出渣、錨桿注漿等施工方法進行了改進，提高了施工工效，加快了施工進度，最終提高了經濟效益。 -
Numerical analysis of blasting efficiency affected by charging manner in concrete
混凝土中裝藥方式影響爆破效果的數值分析
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