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SUBLEVELCAVINGCONTENTSSLCDESIGNCONCEPTSDRAWTHEORYSLCDESIGNLAYOUTDEBATEDesignrulesDrawiskingCriticalissuestobeansweredbeforegeotechnicaldesign:
-Howmuchdevelopmentforhowmuchrecovery? -Howmuchsupportforhowmuchrecovery? -SLC/blockcavetonnagecut-off? -SLCsustainingdevelopmentrateforreqtonnage? -hardorsoftcavingenvironment?1000msoftcavegeotechnicalcut-offInter-activedrawbecomesharderatdepthRecoveryharderatdepthWastegradebecomebetteratdepth(muckpilesalting)Norightorwrong,justprobabilitiesofsucessSLCBALANCECONCEPTSupportDrawBlastingProductionDrawtheoryHowthebrokengroundisdrawn/flowsDrawpointspacing’storeducedilution/increaserecoveryStillnotwellunderstoodPhysicalmodels/bunkers-Kvapli&Jenike1960’sMathematic/numericalplasticflow–Pariseau1960’sFullscalemarkertests–Kvapli,Just&Janelid1960’sPhysicalmodelsLaubscher,Tayloretc-1970-1980’sKvapilcurvesrevisited/Laubscher-Bull&2000ICS2001-presentPhysicalmodelsPFCRingmarkertrialsYENGE1980“theflowofcavedorecannotbedescribedsatisfactorybytheoriesdevelopedfortheflowofothergranularmaterialssuchassandpowderandserialgrains“DrawtheoryBestwehavegottodayWewillneversolvematerialvariabilityWemaygetcloserDesign’smustbetemperwith
-Commonsense -ExperienceTwodesigntheories
-kvapil -LaubscherFlowofmaterialBasicdrawtheoryEllipsoidareasEliposideformationMainpointsTwozones -DRAWOREXTRACTION
ellipsoid(MATERIALREMOVED) -Limitellipsoid(materialmovement/loosens)
Drawzone -Koperzoneincenter -shearzoneatthesidesPoints: -materialmovesfasterincentre -Finermaterialslimmerdrawzone -coarsermaterialwidedrawzone -drawzonewidthrelatedtomaterial/drawpointsizeSLCDesignClassificationMRMRbased2classes:Softcaves<class3Hardcaves>class3SUPPORTDESIGNSLCDESIGNLayoutsbasedondrawandblastingreqAbovereqdrawpointsclosetogetherWiderdrawpointsViolatesthelayoutstressrulesOperationaldepthlimitsoftcavesGreatersupportHardcavesbrowinstabilitySUSTAININGDEVELOPLEMENTDesignLayoutsbasedondrawKvapliLaubscherDrawinteractionSublevelheightDrawpointspacingFlatwidedrawpointsbacksLowerdriftheightsSublevelheigth: -Development -DrillingaccuracyDraw-interactionFLATBACKSLowdriftheight/ringangleKvapilLayoutdesignonbins/observationsprecisedeterminationofspacingCorrectionwithextractionelipsoid/IDZAppliescorrectionsfordriftbackprofile/oreUsesgraphsandformulaDeterminesSublevelheightDriftspacingDiggingdepth/burdencorrectionofsimmingofellipsoidforheigthKvapilDriftwidth,determinedfromgroundconditions
-MRMRclass4max4.5m(better3.8m) -MRMRClass3>max6.0mApplydriftcorrectionDeterminesublevelheigthDeterminewidthofextractionellipsoidDeterminedepthofextractionellipsoidDeterminedriftcenterspacingDr斤if拾t父co乒rr刮ec屯ti刊onEll栽ips念oid補(bǔ)wi昂dthDi鍵g納wi拐dt卸hCav美eg蘿rad勸ingKv炎ap替ligr伙ad會(huì)in贏gs110痰%e雁xtr哥act櫻ionCla汽ss唱1,伶80%槽(o戶re靈)<祝30%活wa形steCla缸ss齒2,膨75%族(o燒re)牌<還35%殺wa岔steCl聽as倚s浸3,占6鄙5%雀(綱or航e(魂<款45左%抱wa伍st獻(xiàn)eRef明er峰as奔70/沿30輸or計(jì)60/姥40Dil然uti罪on賓ent頑ry敏abo你ut售40蜻%影mat律eri喬al僻dra效wnRem謊ark換sOld外sy耀ste墾mExa例ct誰num遭berCl脅os回er貓s吧pa痛ci衡ngHa膊s猛be拜en腳c骨ha草ll繡en貞ge媽dICS技m浮ay商sug爹ges間tt梨hat進(jìn)th嬌is診may蛾no植tb騰ew埋ron鏈gClo槳ser璃dr鞭aw泡poi猾nt建spa縣cin葉gGr赴ad速in撞g銳of憐t償yp瞇es透o健f里dr役awRed哨uct觸ion賭of引dr黨aw揪poi砌nt隙siz部ew稈ith痕dr葡awhei遭gth18m稼th唯ec眾ut-餐offLa牲ub榮sc蠅he攔rBin樣&扣obs里erv似ati脹onsSh嶼ab棕an餅ieIso耗lat特ed知dra途wz神one暗di讓ame桶ter驅(qū)co痕nce賞ptIDZ都=L裕imi艙te稍lli躺pso挨idIn黎cr啞ea鍵se竊d臥in以te鵝ra戚ct泰io寇n/銜s關(guān)pa指ci量ng找du斯e烏to盲a潔bo員veDr其aw綿p瞞oi讀nt撇s扒pa喂ci明ng代=柳ID欲Z閥x專in層te堂ra制ct糕io臥n購fa傳ct塘orLa濁ub科sc歲he逐rbi很nsDra患wp樓oin摘tw落idt潑hsDil冬uti陳on甲ent塘ry菜gra屈phsDi簽lu乳ti藝on也e沸nt搶ry期g灣ra唯phLau夢(mèng)bsc宮herID患Z搖c傷on棚ce孕ptIn春te得ra圣ct漿io感n妹fa扁ct頭or蛙?No鵲dir夢(mèng)ect底u(yù)s姑eMai督nb旺loc更kc議avi小ngReq菜uir趴es阿ski途llUse肌fr理agm辛ent砍ati唯on豬siz爽eRa下ng檢e士of錘d慎ra遮w衡po拋in津tspa戶cin女gsMi棉ss喉in計(jì)g村da幅taBu禾ll蜜a環(huán)nd坡P騰ag孔e20希00肢,框SL扶C餐de合si儲(chǔ)gn負(fù)r業(yè)at決io濱na嘴leNe坊w妹mo脈de宋l金of音b陶eh結(jié)av剃io向rOl派d歌bi秋n先th烈eo血ry汗l叔ay夏ou紙ts矮c養(yǎng)au王se諸d雅me非th羊od建p棵ro屠bl永em乞sEmb秀rac圖edYen害ge’把ssta套tem除entEx咽ce礦ss爆iv孕e弟di仍lu志ti蜂on演&釘l血ow嘆r偵ec她ov演er遼yAbo皮ve弟led賽to刺SL恢Cb楚ein只gu斃npo滿pul迷arRe破ce戶nt緣瑞e根vi核de惠nc昏e墓sh爸ow列ed筒b衫et外te驅(qū)r省re材co裙ve士ri繩esDr涼aw腔b蔑eh砍av甜io師r不wa斷s蝕si眨mi昨la盤r突to索b果lo燃ck膽c勞av給in排gLa旬yo司ut歸s你we侮re吊b滴as境ed射o昨nLau提bsc絞hervie淡wAd膀va瘋nc勿ed禽t迫he伍c恰on肌ce餅pt畢o疾f撥Is絲式ol逐at犧ed胃/明in飽te法ra耳ct錘iv蜜e蚊dr給aw14做.5伸m嘗dr溪aw冷p咳oi品nt首s揭pa蔬ci郊ngRe停co膊ve忠ry塘i籠mp幅ro率ve絮me狹nt村s列:-mor發(fā)ei睜nte妄rac閑tiv差el殘ayo差uts-S氧tri蠢ct畢app賣lic挑ati駁on遼of盆dr衡aw斤sta意nda貌rdsIn毀te極ra射ct撲iv嫌e/字i爺so墨la柔t(yī)e羅d略dr肝awDra護(hù)ws申tan盜dar撇dsBul膏l(xiāng)Rul幅es秒or哈com蘋man疑dme劉nts-真Al辨ig惱nm掃en屬t家of手f盛ac稱es辜(千3-丸5淹fa厭ce挪s)-位Un割if考o(jì)r肺m公dr包aw延o愉f悠bl為as限te遙d恩ma慚te寬ri績al-G柱ood臟bl隆ast詳ing乖st根and養(yǎng)ard拋s-源Go浪od恥r奶oa嗎dw欠ay天s/紀(jì)s蒸up棉po廳rt-紅Bo顯g語ac犁ro舅ss游f轟ul偏l急wi億dt嘩h音of于f潛ac筒eDr祝aw守s乞ta緊nd持ar猶dsBul潑lRul濟(jì)es例or唱com貝man掉dme球nts-局Al勤ig淹nm愁en涼t惹of搶f爸ac鈴es擊(謎3-唉5邊f(xié)a爸ce懲s)-表Un園if表or獅m賊dr宜aw績o紋f托bl裹as炎te盲d足ma摘te各ri猾al-暴Go枝od皆b算la拳st缺in麗g增st老an室da壯rd鞠s-障Go恐od命r櫻oa夕dw建ay魔s/嬌s岡up爺po問rt-B預(yù)og斧acr范oss賄fu島ll潑wid鋒th毫of做fac挺eDra輕ws右tan薪dar坐dsBul叢lRul驗(yàn)es思o(jì)r辦com芝man波dme倘nts-A峽lig抱nme性nt酒of臟fac芳es序(3-群5f焰ace發(fā)s)-額Un弟if派or惡m蘭dr濱aw領(lǐng)o別f丑bl蹲as夏te暴d訓(xùn)ma跨te煉ri央al-姜Go平od封b旦la妙st棄in嫩g譯st口an鎮(zhèn)da稍rd抬s-碗Go齡od汁r坊oa熟dw包ay肺s/嶼s事up鬧po喊rt-視Bo贏g咳ac做ro跡ss免f敏ul剪l劈燕wi棗dt鐘h檔of抓f蔑ac市eCum杜ula燈tiv浸edil偷uti賓ion15-掠24%祖(4幅0%)Met鄰al壩rec擱ove塊rie懇s9裁0-1竭00%Dil拼uti尋on向ent陶ry析poi鴿nt僅50%矛(20唇%)Bul衰l&裙pa炮geCh鴨al第le嘗ng警edDo錢es圈n共ot旋w守or浩kCr納it挑ic居s令is結(jié)u迫nf兩ai圖rDes男ign垂ph府ilo警sop致hy增iss少uesDo尚w割e侮de辰si碼gn捷m頓in明e’盤s吳wi燈th麗h生um錘an姜s永ys紫te劉m何er事ro醒rGr育ey錄a朝re寶a傭re莫ga炮rd羽in草g擱th尺e薄14因.5窩m綿dr藥aw展p倦oi凳nt(Ma戚ss治mi俘n20翼0瘦54羨6雁Fi蔬g8)惜:-慌8m謊to除10m冶ap滿art罷in成ter侵act衛(wèi)ive潤dr麗aw-1薄0m縮慧to嘆18m查gr儀ay數(shù)are宋a(鼠no罩com楚men鑒td介egr薦eas鳥ing似ef扛fec臟tiv滅ene夜ss)-設(shè)18巧m資is糾ol聽at閥ed腦d漏ra懸w末co摘nd放it姜io晨nsIn獸te急ra定ct要io趴n耍of覺i忌nt膠er割ac頃ti叨on晝f閣ac刮to謎rs黨n們ot脖c姜le或arSLC繼Cl緞ass缺ifi前cat紙ionMR斗MR漢ba陶se鋼d2c衫las園ses墻:Sof環(huán)tc枕ave厭s<銀cl僚ass乘3Har座dc算ave恐s>優(yōu)cl右ass驕3SU播PP撕OR襲T庫DE釋SI譽(yù)GNSL迫C欣Cl問as珍si截fi絡(luò)ca獄ti邊onMRM酒R平bas串ed2衰cl沙as乳se夾s:Sof牌tc匆ave頃s<豈cl產(chǎn)ass趁3Ha紋rd愿c兵av鋤es漆>嬌c宅la移ss田3SUP道POR鄉(xiāng)豐TD魂ESI嶄GNDR足AW皆PO適IN化T腫SP蟲AC尚IN臨GDS=幅ID濱Zx堆IN吧TER搶ACT狗ION緣瑞FA娃CTO窗RInt尺era閑cti顆on責(zé)fac以tor類sRa伯ng著e浸fr廁om劫1店.2析t守o形1.炎6Bl歐oc查k刻ca址ve句s因no度m雅uc吃k杠pi年le遙c葬on德fi濁ne踩me憂nt戲=紡1允.5Re栽ce摩nt汽l歸ay絞ou船ts靜4哲c堤av后es健(意25禮m)Di膜lu指ti被on拆3款0%快e嗚xt碌ra熟ct駱io訂n國76默t劍o封98箭%Cla命ss掀4Dra再wp呀oin葡ts池4.5規(guī)to黃6m主wi知deSpa序cin溜gb吐etw蟻een屯11尤to煎14平.5m85嶼t角o免98兄%生ex敬tr翅ac丸ti敬on砍=扇IF嫩o酬f帥1.荷2筍to舍1惰.376瓦to獅8現(xiàn)5%捆e殼xt吹ra般ct和io萄n杰=焰1.睡3常to鳳1熱.514.隙5m交=1更.613莖.5找=洽1液.5Bu視ll巴&揭p什ag細(xì)e>1旺2m猶dra賠wp款oin固ts囑pac肯ing橋?Que插sti拉ons逢:-wha竹ti庫nte洽rac仇tio狡nf峰act梯or賢use猴d?-h匹ow游sen陷sit姥ive椅to爽dr畢aw猾con泡tro院ls欠tan頌dar蔑d?-講Pr帥ob質(zhì)ab毅il告it互y傘of柱a雅ch泳ie因vi枝ng世t幟he稼a藏bo帽ve取?爹(雞30鹽%)-脹Ga絲式in康s漫co散mp風(fēng)ar過ed富t餃o細(xì)is慶ol丘at造ed專d友ra曬w臣la校yo撇ut-r老eco括ver料y/蠶dil迷u(píng)ti棍on,倆su恥sta依in侵dev.經(jīng)CA避PE傘XNot郊wr叉ongPro買bab賄ili史sti魄c/群ris燦kf搏or雜rec眨ove治ryGoo怖da雖nsw纖ers旱no度to揪pin朝ion元re艘qui艦red13浪m掉la摟yo箱ut獲s怕pa輸ci溫ng酒=騙re榨co蟻ve慮ryvsCAP擁EX柏for憂de屑vIN單CO領(lǐng)/濟(jì)ST述OB取IEIso巖lat傾ed謎dra奧ws召itu捎ati嶺on200認(rèn)225m窩x俱25m歐la黎you晉tsHus蘆tru削id/喚LK婚AB騎la緩rg送e梢su桌b技le脫ve暈ls貢b世ad斬f瘋or墓d自il弄ut堅(jiān)io伸nRe稀du累ce態(tài)c鳳os美ts哥w咸id武el及y鹽sp務(wù)ac稈ed富d錘ra毀w酬po難in舊ts爹a鐵nd少s胞ub沉l未ev滋el放sIs唇thi泡sb偷adNoIn富si昏tu仗g震ra較de記o略f燦th匙e孕ri牌ngCut童-of找fo銀fs宣hut葛-of仗fg薯rad姿eDra杠wi濾nte宮rac音tio擊ni賠sa暢se心con鑄dar鑰yi懼ssu硬eMuc貫kp澡ile謙sa摧lti間ng去ove鴨rt描imeWha狡tt藥oy錘ou島cal抵ld董ilu劫tio緩nCON侍FUS講ED腥?Di自ff辛er擁en鎮(zhèn)ce蝴a亂pp車ro屯ac燥he杠sNot液wr格ongHow蟲do欲we范de伐sig萍na反su臺(tái)bl嘆eve毀lc糖ave斜?Wha鋒ta往ppr喉oac厭hs和hou洪ld罵be客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