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MiningEngineeringAspectsContentsWorlddrivingforceCostsMethodsDesignprinciplesRiskconceptsProjectstageaimsWorldDrivingForceCaveminingisthelowestcostundergroundminingmethod”(DHLaubscher,1994)TotalMiningCostsBlockcavingAUD$24-35/tonneHybridcavingAUD$35-40/tonneSLCAUD$41-60/tonneOpencutAUD$29/tonne(Deeppit>300m)KNOtypestopingAUD$70-120/tonneStrongWorldDrivingForceSince1995,theapplicationofcaveminingmethodshasforcedare-thinkintermsofminingmethodsRe-thinkdrivenby:- Increasepitcut-backcapitalcostsforcingoperationsunderground- Theneedtoproducehightonnagesfromundergroundoperations- Theneedtoattempttoreproduceopen-cutworkingcostsfromanundergroundmine- Pittoundergroundtransitionatlowgradeoperations- BlockcavesequencingAdditionalDrivingForcesNorthParkesPalaborwaMiningworkingscostsaslowasAUD$3.8/tonne+200mhighliftcaveSupercave(>11milliontonnesperyear)BetterminedesignprocessesBlockcaveOPEXECCONOMICFORCESNPV’SAUD$300-400MillionPossibleNPV’S600-800MillionIRR11-25%15%IRRrealisticnumberProjectlife20yearsTotalopexUS$9/tonforblockcavesCut-offgradeCaveMineClassification0to0.25 Mt/yr Small2.5to7 Mt/yr Medium7to11 Mt/yr Large>11 Mt/yr SuperNeedForBalanceCavemininghasmanyadvantagesAgoodunderstandingofthemethodisrequiredTheminingmethodcannotbeappliedtoeveryorebodyRequirements:- Highup-frontcapital- Longerproductionramp-intimes- Gradehighenoughtopayoffcapital- Higherlevelsofdesignwork- ConstructionofanundergroundfactoryCavesarethelargestundergroundminesAparadigmshiftisrequiredforimplementationCavingmethodsCavingMethodsPre-break,SLCorcore&ShellFreecavingmethods,BlockcavingHybridmethods(Blockcaving/SLC)PREBREAK/SLCPre-breakCharacteristicsSLCmostcommonmethodProductionbydrillingandblastingQuickertobringintoproductionthanBlockCavingTypicalminesize2to5million/tonnesyearFreeCavingMethodsBlockcavingmostcommonmethodLowestworkingcostpertonneLongramp-inperiodsHighup-frontcapitalPitorHybridgearing91mlowestblockheightCavede-stressingTypesofblockcaveGrizzlySlusherLHD/panelFrontcaveInclineddrawpointGrizzly(Pillar1981)SLUSHER(HARTLEY1981)SLUSHER(Hartley1981)Fro輛nt留cav召eIn窩cl鄉(xiāng)豐in巾ed跳d嫌ra醋w商po焰in裕tIn證cl耕in激eddr致aw接po僻in跑tBlo憂ck沸cav適ing-L叉HDHy錘br雷id偏C溜av昌in菜g承Me筐th江od香sMi聚xt默ur池e絕of上m逆et臭ho獵dsFl暗uc室tu謹(jǐn)at升in追g學(xué)bl財(cái)oc與k儀he狂ig亭ht衡s野or施g止eo盡me強(qiáng)tr假ie雄sSLC澡/B栽loc累kC元avi笛ng/酬Fr拖ont似Ca將veSt坐ar裕t炕wi貢th市S蔬LC遠(yuǎn),柄ea腸rl黑ie羨r隱to榮nn葡ag退esRa作mp廁-i帝n早bl授oc沾k見ca漸vi務(wù)ngWor棄kin施gc彩ost芳s-Lo暖we睡r就th練an閃S泄LC-Hi韻gh鳳er舌t斗ha排n更Bl堪oc記k益Ca填vi育ngMe土th勸od矛s獅el私ec貓ti蚊onCA旅PE昏X,閣p正re跡b談re更ak鄉(xiāng)豐l浩es盼s均up郊f夕ro興ntOP扇EX兄,斤bl旁oc悟k翻ca穴vi局ng肅l訪ow絡(luò)erCor犁por亭ate鍛ri紗sk,衛(wèi)bl裂ock止ca活vin虛g7魯0%略up登fro畢ntCav牛abi聰lit豬y,置pre撲-br絕eak摟le足ss皺ris黑kSlu義she堵r/gr云izz捆ly,咽so庫fte匹rr怪ock蜘.L魂owe裹rs兇tre爬ssLHD叫,c再oar鈴se傷fra囑gme犁nta摧tio腔n,良hig蝕hs坐tre護(hù)ssGe斥ol評og嫂y,訪g掀eo皂me湖tr清y,geo酷t(yī)ec漏hetcOp氧en義c相ut預(yù)i迅nt峰e(cuò)r曲ac肅ti隙onPit練Ge險(xiǎn)ari遲ngCav弟em得ini底ng性see土na畫sa袖na晨tur很al浸tra繁nsi掌tio亭nf雖rom劍op陪en-廊cutVer寺yf雞ew殊min倡es毀can灶ra瘡mp勝str俗aig照ht議int嬸ol章arg韻es芝cal遇eb夾loc鉗kc引avi砌ngBlo餡ck鎖cav飼ing野co肺sts殼si術(shù)mil辛ar戲to尼dee告pl耗eve桿lo際pen陽cu乘tc乓ost粘sTr緒en種d-考b撇lo星ck軌c逃av掃in虛g甩re題mo摔ve膠s嘴la閱st左t權(quán)wo畫p匯it粥c夠ut麻-b她ac童ksSo究lu擾ti廊on芹-鬧Hy課br朱id租o蠢r乓sh要ar下ed郊i化nf務(wù)ra睡st光ru們ct擇ur圓eCa豎ve哲R防is洽kCav勸ing擋is際on辛es塵hot注mi減nin轎gGet竿it嗎wr布o(jì)ngma演jo輩r叫pr宅ob放le疤msHa洞rd堪t斥o切fi瞞xHi瘦gh紐奉l懂ev采el氏s扇ca拉pe亂xLar要ge較pro鉆jec突tC稀APE誼X10宴mil較lio工nt妹on虛blo編ck怖cav鍵eTo剖ta撤l裂pr稅oj蚊ec語t涉AU鹿D$認(rèn)1喊t露o賊1.臺5民Bi儲ll絕io奇nMin裂ec左ost遼sA柴UD$剪35因0t岡o6大00嗓mil劣lio貝nSh則af借t/癥d諸ec卻li喘ne閥s殿ys倦te你m捐AU搜D$愚6脈0踩-9鄭0泡mi芝ll雜io柳n60%煙CA狹PEX等in蘭fra館str競uct繩ureUS搬$東20侮0咸Mi芒ll藏io稻n肚ru膨leRIS幻玉KI窮MPA沙CTS30-伐40%體Ca器pit負(fù)al弱blo毀wo壩utAUD幕$2揭50-確300勢Mi暈lli斜on30-蘆40%當(dāng)re延cov束ere初dg更rad倆e30犁-5婆0%料l畏es叫s辦pr登od烏uc智ti釋on師i狼n愛yr臟15蛋ye潑ar頂s旁lo蒙ng僵er競t屋o咬ac握hi告ev畏e雞fu纏ll歪p截ro移du份ct織io連nTyp倆es纖of證Cav廣eR串iskImp劉lem劣ent過ati綠on段tim加esDe長si輝gn扶d柴et俯ai盲lMin姥ing未en舅gin則eer乒ing章ri起sks-Geo雷log丙ica田l-Geo彩tec揮hni免cal-Ma浩na倡ge緊me偏ntIm伐pl付em鉗en賓ta境ti附on臣t溝im歌esSl頓ow勤-魯1肚5逐ye宋ar昏sFa凳st東t馬ra捆ck吼-粉7暴y寨ea鞠rs限(衫su派pe參r乎te延am鐘)Hig秒hly點(diǎn)ag武gre慈ssi瘦ve小-6育ye殘arsAv丑er投ag找e躺10誓y鴿ea閉rsSu體pe鄰r歐te送am士p運(yùn)er權(quán)so儀nn靠el霸e宋xi跪st惑i忙n鬼th欲e互wo盟rl瞎dSma經(jīng)ll宮SLC爭ty掘pe充ope窯rat鬼ion厲s3鑰ye莊arsBro跳wnf兵iel減d's衣FC距5捉y(tǒng)ea楚rsDes技ign指De嘴tai戲lRo蓄ck位f布ac賓to串ry輸c衡on替ce泛ptHi稈gh搬l眠ev棄el番s譜of半d漲et森ai烘l駝re箱qu損ir耀ed幫i薦n襯ev挖er魔y拾as煌pe嘴ctSpe糊cia怖lis店ts券tud富iesMin鵲ing南En每gin蝕eer館ing趟Ri友sksGeo廁log厘ica波l-著hig購hb奏l(xiāng)oc嗎kl叔ift沸,b慕ott暑om-歉up此met嶄hodGe體ot朗ec嬸hn姨ic指al撇-貞ex皂tr匆ac杯ti伍on聽l孩ev訂el少c磚ru季sh餃in御g,斃d疾il慎ut畏io劉n,忘w冰at京er蠢/m怎ud眼i堡ng景re疏ss賣esWo釀rk且f請or姻ce織s臺ki益ll褲sRi汁sk魔A飄me孫li戰(zhàn)or置at核io娃nCav貫ing寺ri汪sks變ca蔑nb罪em杰iti挪gat劣ed苦by:-Th中e頸us改e任of抖t脅he合‘份su捏pe屠r疊te織am煤’-Un攏de窄rs俯ta員nd煙in齊g搏th捕at身h萬ig衫h攪le惰ve狼ls既o雅f益de哲si的gn尺d片et遭ai需l宏ar餅e概re廚q.-San潔ity跑ch創(chuàng)eck棒s(促imp喜lem淘ent低ati膏on接tim姓es)-Hy神br準(zhǔn)id終s跑ys堵te虧m-Cor轎rec茫tm隆ode峽lli差ng凱tec初hni鹿que迅s-Ris園ka哨nal沾ysi丸sCav滑ep缸roj運(yùn)ect片sCri鍵tic動(dòng)al伴mis勞tak害esSpe欺nd汗too沉li息ttl讓et蛾ime蜻on鋸co倘nce柱pts-M飽in毯in起g蝦me斬th蜜od賺s頓el竿ec乓ti叔on-Mi鐵nin康gg貫eom芬etr兼y-B付loc您ka嗎t(yī)ta包c(diǎn)k-C涂orp織ora遲te秒ris柏kp延rof擇ileUn藝re吼al聲is傾ti副c晴ex法pe拿ct摔at返io垮nsDe購sk匪to歲p言St時(shí)ud更y室Ai脂msIs犯cav迫em自ini各ng燦pos僻sib礙le?Cou蠢ld賞it少be咱see栽na飽sa部na縫lte邊rna捆tiv灣et嚇oo塘pen欣cu棟tm慨eth妻ods淹?De異ep恨l部ev康el赤o贊re虜b均od何ie鉆s懼?Pr舌oj酷ec他t孤co私nf贊ig圈ur米at喬io過nCou皮ld福the牽st劣udi軍es慮be灣adv換anc掛ed亮bey量ond咬to幸sc裝opi躺ng犯sta座geIs億t酸he容p蘋ro弟je刊ct拍v噴ia斯bl貍e50%匙ac激cur襪acy躁(R隊(duì)eyn撇old糾s)Bes裙tp訓(xùn)oss竟ibl嗓ei剝npu束tv絕alu儉esBl析oc恭k道ca筆ve律s腐be裕st淋a偏ft循er微2擁50互m拼li龍ft雷i何f胖no渴t文40舉0mSc峰op圈in好g籃st本ud岔yGe萌ne別ra寄l拒fe枕at烈ur恐es碰o老f基pr乓oj渴ec磁t-C通avi嫩ng昏foo投tpr勒int-朗Ca懇vi摩ng負(fù)b走lo婆ck膏h椅ei屢gh窯t-B允ott話om雪of寶ope句nc閃ut-容Mi狠ni霉ng濁m據(jù)et書ho奇d妨se崗le出ct悟io無nBe無st廢p殿ar液am錦et沿er仁s30帶-3會(huì)5%摟a辯cc綁ur哨ac凈yDon云’t迅wo許rry秒ab朗out桶ca建vab判ili綢tyEx衰pe請ri申en敏ti許al故,論em悼pi棚ri物ca民l毫in貓pu局t趟pa涌ra犁me伐te醒rsWe斤ll槳o浮ve往r斑h(yuǎn)u強(qiáng)rd識le孔s,脫I扇RR封ca場n妨dr蛙opby叛10%氧to隱DE認(rèn)FSWro踢ng-亡to素om盤uch沉de逆tai雞lSco積pin害gs是tud樹yc偵onc臉ept樓sWor伙ko逐ne多xpe按rie辦nce醋,d么oes院it松fe瓣el怪rig飄htIf角som紗eon感eh如as棄not鑄ca終ved謊it遞.I膝tw紐奉ill柱no扛tw活ork該/o義ri庭sh屆igh沒ri斃skURA甩D/Phi閑lexDe普si斷gn碧f程ro森m悼bo雞ok越s峽(M拴AS搬SM轎IN箏9遼2妄&汪20鋒00滿)Con濕fid矛enc草ew喜ith竟co斤nce椒ptsGeo枝tec吼hni丙cal迷de透sig議nw拒ith同ro考ck督mas蛙sr漆ati培ngsDo姿not袖us亮er傘ati樣ng缸val臺ues吵pa傭sse錦ds市cop補(bǔ)ing糖st天age觸.Ra某mp沃t份on恢na兼ge當(dāng)a個(gè)ss筑es蹦sm養(yǎng)en游ts鎮(zhèn)w儲it搖h批BC農(nóng)F/世Ha芒ng更-u蒜p卵mo究de股lWh乒at滿n陪ee像ds書t漢o封be的d啄on止e兵fo誼r硬ne灶xt婆s姓ta喬geGe危ot被ec燃hn職ic愿al繩d蠅om餃ai斤n秩mo頓de圓ls古,笛fo奴r騰ho醉le肚s質(zhì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