推薦產(chǎn)品
3-(4-chlorophenyl)-4-phenyl-4,5-dihydro-1H-pyrazole 2-(chloromethyl)-3-methylpyridinehydrochloride 1-(2-bromo-4-methylphenyl)ethanone 3-chloroisoquinoline-4-carbonitrile 5,8-dichloropyrido[3,2-d]pyridazine 2-bromomalononitrile 2-(4-(bromomethyl)phenyl)benzo[d]thiazole 1-(bromomethyl)-3-methoxy-2-nitrobenzene 6-bromo-1H-[1,2,3]triazolo[4,5-b]pyridine 4-iodo-2-((trimethylsilyloxy)methyl)thiazole 6-iodoimidazo[1,2-a]pyridine-3-carbonitrile 2-(4-chlorophenyl)-2-morpholinoacetonitrile 4-chloro-7H-pyrrolo[2,3-d]pyrimidine 4-chloroisothiazole 5-bromo-6-chloro-1H-indole 7-chloro-3H-imidazo[4,5-b]pyridine ethyl3-(4-formylphenyl)propanoate 2,3-dibromobenzaldehyde 1-(5H-chromeno[2,3-b]pyridin-7-yl)ethanone 5H-chromeno[2,3-b]pyridin-5-one 3-chloroisoquinoline-4-carbaldehyde (E)-2-(3-oxoprop-1-enyl)benzaldehyde methyl4-formyl-3-nitrobenzoate 5,6-dimethoxy-2,2-dimethyl-2,3-dihydro-1H-inden-1-one 1-methylbicyclo[4.1.0]heptan-3-one 3-nitro-4-(trifluoromethoxy)benzaldehyde 2-hydroxyquinoline-6-carbaldehyde 2-nitro-3-(trifluoromethyl)benzaldehyde 1-(2-fluoro-4-methoxyphenyl)propan-2-one tert-butyl3-fluoro-4-oxopiperidine-1-carboxylate tert-butyl3-oxopropylcarbamate 2,2-dimethylcyclohexanone 9H-carbazole-3-carbaldehyde N,N-dimethyl-2-oxoacetamide 2-methylpent-4-yn-2-ol 3-tert-butyl-4-hydroxybenzonitrile 4-bromo-2-tert-butylphenol 1,3-dibutoxypropan-2-ol methyl4-hydroxyquinoline-6-carboxylate methyl3-cyano-4-hydroxybenzoate 4-chloro-6-methoxyquinolin-7-ol 3,4-dihydro-2H-benzo[b][1,4]oxazin-7-ol 2-(2-aminothiazol-5-yl)ethanolhydrochloride (R)-ethyl2-chloropropanoate (S)-4-amino-5-(4,4-dimethylcyclohexylamino)-5-oxopentanoicacid (1s,4s)-4-hydroxycyclohexanecarboxylicacid (S)-2-(tetrahydrofuran-3-yloxy)aceticacid (1S,4R)-1-methyl-4-(prop-1-en-2-yl)cyclohex-2-enol (R)-4-(hydroxymethyl)oxazolidin-2-one (S)-4-(hydroxymethyl)oxazolidin-2-one 化工資訊 日前，冬瓜山銅礦采礦工區(qū)地質(zhì)、采礦技術(shù)員通過現(xiàn)場跟蹤鑿巖施工，判定冬瓜山礦段井下負(fù)800米41線2號采場礦體比原設(shè)計(jì)增厚，重新圈定礦體后，測算新增礦量約6887噸，平均品位0.633%，銅金屬量44.23噸，總價(jià)值超百萬元。
該采場原布孔設(shè)計(jì)為直徑76毫米上向扇形鉆孔，總計(jì)23排鉆孔、總孔深3009.1米，采出礦量為2.09萬噸。今年8月初，采礦工區(qū)安排H1354中深孔鑿巖臺車進(jìn)駐該采場，臺車工按照圖紙?jiān)O(shè)計(jì)先施工靠近42線編號為1排至3排鉆孔。在作業(yè)中，該區(qū)地質(zhì)、采礦技術(shù)員為掌握采場礦體相關(guān)技術(shù)參數(shù)，及時(shí)跟蹤中孔鑿巖情況，發(fā)現(xiàn)采場頂板距41線7.2米處存在斜交斷層，硐室底板砂巖層理由41線向42線約呈5度趨勢抬高，且鉆孔超出原設(shè)計(jì)孔深50厘米時(shí)仍為礦石，技術(shù)員據(jù)此推測該斷層右側(cè)實(shí)際礦體比原布孔設(shè)計(jì)礦體厚。隨即，分管該采場采出礦設(shè)計(jì)的采礦技術(shù)主辦重新設(shè)計(jì)探礦孔，根據(jù)鉆孔見礦數(shù)據(jù)，分析確認(rèn)15排至1排鉆孔見礦深度分別比原設(shè)計(jì)增加4到8米不等，經(jīng)變更設(shè)計(jì)后，采場鉆孔總孔深增加2050.5米，新增采出礦量也大幅提升。
