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Deep open pit at the bottom of the study interval of the charging structure


Off-site blasting crater, a small step, and industrial test applications, the best interval coefficient obtained = 20% to 25%. (2) the existence of the best bottom of the interval can improve the quality of the rock crusher to reduce the rate and does not leave large At the same time, reduce the consumption of 2,155,986,Salvatore Ferragamo outlet,756 units of the cat explosive flail River bend Ⅲ approved m 4443 m throw throw coral ... bend the plot a whole grain such as 0-level gravel filling cement slurry quality control Li Xiran (L Sari 1o012) the ability of the body's self-filling stability and filling costs. This section discusses in detail end cavity filled with gravel factors affecting body weight and body mass filling, obstruct the tomb of castor / live View keywords. Each basket end wall of the tomb of Ha helmets obstruct the amount of a poison from the cream filling mixed Scrapers / 7 fat IiXiran (ChangshaInstituteofMiningResearch) Abstract: Intestingthestagedbreakstone-cementfilling, anewtechniqueWaSadoptedfirstinChina. Theprocessofthetechniqueisthatthenaturalbreakstone andcementslurryarecarriedformsurfacefillingstation separatlyintoundergroundmixingpoint, wherethecementslurryisspraiedonthebreakstonetOform mixture, thenthemixtureisfilledbyLHDThequalityoffillingmass directlyaffectsonthestrenthoffilledmassanditsabili tyofanti. failurecausedbyblastingvibration, itsstabilityandfillingCOSt. Thispaperdiscussesindetailthequality-affectingfactorsofthefillingmassanditsquality · ensuringmeasures. Keywords: Breakstone-cementfilling, Fillingquality, Self-spraingmixing, LHDfilling1 outlines filled in order to reduce costs, streamline processes and improve the filling efficiency in the domestic first test used: gravel and mud from the ground filled with water diverted transported to the underground station filling mix points,Oakley sunglasses sale, filling in the underground slurry directly spray a little water mixed gravel aggregate mixture prepared by filling cemented gravel, pour mixture scraper from the filling material and transported directly to discharge fill mined-out area formed gravel cemented backfill, the New technology knot formed gravel backfill quality restorations have a direct impact damage resistance ability of blasting vibration, stability and self-filling body filling costs. Thus, in Fengshan Copper Study gravel cemented filling method to form the core content is high quality to meet the requirements of the mining process filling body. 2 cemented gravel filling factors influencing the quality gravel cemented by the Fengshan Copper process known filling method to determine body mass filling quality of the main factors are: the quality of waste rock material, since the shower mixing quality and squeeze filling body controlled blasting . 2.1 Since the leaching from the mixed quality of the ground mixture of simulation and underground leaching leaching from mixed industrial test results can be seen from the shower mixed impact the quality of the main factors: the amount of rubble and demolition material consumption, reduced width and blasting rock pile backlash, improved loading efficiency, reduce intensity of blasting vibration. When the hole in the 1.0 ~ 1.5m depth of water below, to release the spacer, its upper part can be replaced by emulsion oil ANFO explosives waterproof. (3) application at the bottom of the interval charging structure, the investment is small,ed hardy uk, operation is simple, safe,vibram five fingers outlet, reliable, technical and economic effect is significant, widespread in open-pit mine 22 applications. In specific applications, mining and technical conditions should be based on the best interval to determine the appropriate factor to achieve good technical and economic effect. I (references omitted) (Received February 22, 1998) [Author] Anshan Iron and Steel Institute, Professor Zhang Jian Chinese Society for Metals Mining Society China Mining 1998,Beats By Dre Studio, Volume 7 Issue 5
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