![自然崩落法全英文一一_第1頁](http://file4.renrendoc.com/view/e2b2501ef8eb2dc05cd4f72df6e235f7/e2b2501ef8eb2dc05cd4f72df6e235f71.gif)
![自然崩落法全英文一一_第2頁](http://file4.renrendoc.com/view/e2b2501ef8eb2dc05cd4f72df6e235f7/e2b2501ef8eb2dc05cd4f72df6e235f72.gif)
![自然崩落法全英文一一_第3頁](http://file4.renrendoc.com/view/e2b2501ef8eb2dc05cd4f72df6e235f7/e2b2501ef8eb2dc05cd4f72df6e235f73.gif)
![自然崩落法全英文一一_第4頁](http://file4.renrendoc.com/view/e2b2501ef8eb2dc05cd4f72df6e235f7/e2b2501ef8eb2dc05cd4f72df6e235f74.gif)
![自然崩落法全英文一一_第5頁](http://file4.renrendoc.com/view/e2b2501ef8eb2dc05cd4f72df6e235f7/e2b2501ef8eb2dc05cd4f72df6e235f75.gif)
版權說明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權,請進行舉報或認領
文檔簡介
CAVERISKCONTENTSTypesofriskMajoroperationalrisksBlackhatactionstrategiesTypesofriskHeslop2000DesignrisksOperationalhazardsDrawrisksTechnologyrisksDesignrisksEconomiceffectBasedonincorrectgeotechnicaldataAbovecollectedyearsbeforePoorassessmentofgroundconditionsCommonexample
-partiallyloggedcore(egUCS&RQD) -Forcedtousebecauseoflackoffunds -Resultsotherparametershavetobeguessed -uncertaintyindesignparameters -Undersupportofdriftsby25%CommongeotechnicalfailuresNostudydoneStudymissingLackofdetailforstudylevelDetaildefaultScopingstudydetailacceptedforDEFSClassificationdesignusedonlyNotaddressingthekeyissuesmentionedatearlierstagesConceptualstagenotcorrectNotunderstandingimplicationsofrecommendationsNotunderstandingdesignphilosophyNotreadingstudyreports -80%donotreadreport -15%executivesummary -5%reportPracticalmeasuresFocussstudy/reasonablenesstest
-Reviewandcompileotherstudies -Readextensively(take1week) -Literaturestudy -Benchmark -developfeelfortheproject -FindingsFindout(Summers2000):
-Whatweknow -Whatwedon’tknow -Whatweknowwedon’tknowStudystandards(AusIMM)UnresolvedissuesUnresolvedissuesAspectsthatcannotberesolvedduringthestudySpecialbridgingstudies(i.e.caving)Ruleforspecialstudies
-Impactonprojectgreaterthancontingency -Infrastructurestability -Cavability -dilutionanddilutionblanketsIfnocashortimeforspecialstudy -Runprojectonbluesky -Sensitivityonworstcase -opinionrequired
OperationalrisksHeslop2000LossoflifeClosemineorsectionofthemineRockburstsAirblastsMudrushes/floodsRock/strainburstingStressincreasesasundercutisdeveloped.Stressesincreasesfurtherbeforepropagation.PerimeterstressesincreasewithareaundercutandheightofundercutRock/strainburstdamagegreatestbeforepropagationRockburstingrelatedtocavingRockburstingrelatedtomanagementofcavingprocessRockburstcavepronecaves>300-400mHightectonicstressesMountainsMRMR>35DifficultyinpropagatedthecaveRapidratesofadvancesofpre-break/UCEl-Tiente1976RockburstingFracturedzoneexistsaroundthecave50mfromthecavefaceAsthecaveprogatesthiszoneincreasesFracturezoneincreaseduetostressrelaxationDuringthisstagesareasupto500mfromcaveeffectedStrainburstscanoccurinplaceslikecrusher,plats,cribbroomsStrainbursting,ejectionRockburstingBurstsoccurwithcavepropagationHighlevelsofseismisitybeforepropagation.MagofuptoRichter3.6Largecaveshaveupto6largeburstsifnotmanagedSeismiceventsduringpropagationareshearrelatedCommonareasforbursting20to40mfromcaveface/frontStrainburstingandrockejectionatbreakaways/intersectionsupto500mfromcave100mbelowthecaveLargeexcavationswith50mfromorebodyPillarsbetweenconferencingcavefrontsBeforepropagation.RockburstpreventionstrategiesMeshwalls/backsofintersections/largeexcavations500mfromcaveConeboltintersections/breakawaysInstallyieldingsupportwithin40mfrompropagationfacepositionReduceblockcavedrawrates<2000/tons/daybeforepropagationReduceblockcave/SLCpre-breakadvanceratesbelow3000m2/month.Propagatethecavefirst.SLC<45mvertical/m/yrMinetowardsthesolid
Majorairblasts4conditionsAgapbetweenthemuckpileandcavebackCavinghasslowedorstoppedAlargevolumeofcavebackmustbeunstableAirescaperoutesGeotechnicalHardintrusivethroughtheorebodyHardorezonesaboveuclevelNeckingortaperingoforebodyNopitsubsidenceHistoryofcontactorewedgeformationHistoryofstallHardcavesMuckpileCavegapNorealhardrulesExperientialCriticizedOldminingrule200mm/daydrawrateRealisticcavebackgapsarebetween2mto15m2mto5mgoodfornormalproduction15-30mdrawrategreatercavingrate30m>problemofdrawcorrection/airblasts30m-50mofmuckpileAllabovewrongiftunnelsintocaveCavestallCavingstopsorslowsVerticalMRMR>thanUCHRCavinghoopstressesstrengthrockmassBlockheight2xfootprintwidthDrawrategreaterthancavingrateHardcaves<44mm/daySoftcaves<75mm/dayType1collapse(Bell1999)
MUCKPILEAIRGAPSurfaceBackFailsType2collapse(Bell1999)
MUCKPILEAIRGAPSurfaceBlockfallsfrombackTy創(chuàng)pe綿3墳(F旦lo肥re孔s羽19旦93遮)we蚊dg歉eST拾RU都CT憤UR括EAi曉r塵so富ur膊ce替s飲&弓es菜ca鎖pe辛r零ou墊te蒸s2駐ma躁in怨a眨ir輩s寨ou每rc賽es點r緩ou寄te它s-徐ai斬r哪in碌m碧uc偶k/聞ca即ve壯b駁ac殲k拾ga拌p-膚ai外r燥in渡m求uc趣k莫pi縱le納v京oi群dsAir綢es乞cap頂er輪out牧es-V逆ia擾und嗽erc尤ut羅dra籃wp雹oin槳ts-投Mu紐奉ck際p首il池e郵to喝d期ra籠w輝po死in挑ts-O功ld當wor諸kin撈gs訓hol串ed許in停cav知eeff旨ect棚sLo勵ss懇o秒f艙li雨feSu練dd軟en刃s辣ub點si刊de劉nc橡eCol詢lap躬se爬of壩blo辯ck因con滲tac逃ta姓reaPoi竿nt睡loa芒din蟻go獨nd余rif斧tsHan這g-u鹽psDe忌st法ru列ct飄io果n蹄an擴d販da捏ma子ge辯t偵o征se府rv妄ic倉esLos桶so距fp嬌rod璃uct搖ionDri考ft揪reh傍abPr發(fā)ev邪en尚ti略onDe勇fi胸ne秒r斗oc路k內(nèi)ma煉ss匯c往on惑di膜ti陪on市1憐00宇m跳ve穗rt晚ic揀al蟲i鍋nt章er償va扒lsHR降des領ign底ed例har你dg項eot生ech諒nic壓al騰uni詢tMa巧jo務r鬼we豆dg漫e割st獵ru統(tǒng)ct會ur犁e層as翻se跪ss集me閃ntCor胳rec峽td屠efi水nit坊ion茫of撤dr捧aw限r(nóng)at膛eKee耍pd眼raw親po古int秋sf澤ullGoo雀dd閉raw豪co蘇ntr租olCSM胡ca位ve條if晝pos餓sib搶le忘/3箭dd四raw其pr幫ofi熊lesPl斬ug掃a請ll線t貍un尿ne廣ls蘋i雕nt薄o駝ca啞veSi愈te朋p戒lu齡gs茄o騰ut沒si然de費b適re專ak岡b壤ac氧k乞zo棵neTel稱e-r究emo許te春dra績wp鋤oin揉tsDra患wp孔oin資ts誤ful騾lMo齒ni騰to回r尾ca肆ve府b霜ac憑kEva祝cua桶te蛋min男ei紋nf新ail舅ure多/d出ang興er事tim給esMU匠D努RU票SH蒼ESBu教tc莖he接r店(1樓99蜻9-衫20塑00財)Ef忽fe尖ct軋s-Los撞so底fl倡ife-L謎oss劉of坊mi別ne-擁Pr棕od怕uc蹲ti聞on俗l呆os鋤s-A滅ir為bla癥sts-籃ma拾jo瓜r在re羅ha始bMu圓d孔ru陸sh痰c包on煉di取ti籌onWat濾erMu雁d勵ma伴te漠ri君al蜜sDis館cha瞧rge奸po賴intDi歲st閑ur危ba獻nc跨eMu擊d岡fo肝rm喚in潤g視ma攪te辣ri日al韻sCav裁ew騰ast壓es執(zhí)wit永hs隊hal滾eTa節(jié)il觀in掩g/趣s玩li駱me疫s跌or織m徹ud會d伶ep下os愿it燥ed鐮in處g火lo薯ry作h醉ol忘eWe筒at雞he逼re某d致ov跪er愉bu耳rd耽en圾/香so遠ilSus睡pec鍵ted攔TK島BK眨imb糞erl束ite慚ma尋ter獲ialGyp毛sum裂/c狼lay侵mi除ner柿alsFi緊ne懸c零av犬e償wa耗st兆e20%毀sa找nd塊siz登em陣ate姐ria堤lMoi撿stu附re夠>8域.5%MUDMu圍d貍fo牛rm中in平g然me優(yōu)ch市an兼ic襖sSha械le/逗mu元df哈orm湯ing膛ma途ter哄ial重dr俯awn夜in禽to梨cav嫂e.Abo佛ve肆mat甘eri伏al勇is束gro場und皆do影wn縮慧muc鐘kp夕ile少ac鍵tio塑nGr榜ou屬nd迫m磚at熔er居ia撓l牽li汗es范i載n喘mu豈ck潑p畫il役e她vo既id及sWat罰er睛mix最es倚wit扁hm格ate氣ria饅lt訊of加orm持mu漆dMud屬i寫sd穩(wěn)raw慶no某ut伸or臺flo爛ws種outMu撫d裂ca鵲n舉be垮f柱or從ce揪d鴿ou甜t規(guī)by懇c肝ol寇la瞇ps李in免g疊mu冬ck竭p毒il捎e舌vo認id某sshaleRainwaterDrawpointRockMudrushShaleweathersandslakesinslope,andsloughsWastecapMudpocketShaleweathersfurtherinpitbottomGround
waterflows
towardswastecapDis詞cha栽rge說po娛int拔sTY昆PE魔1蛾D院RA鎖WP荷OI糖NT芹SMud盒tr榜ans存por距te僅xca款vat砍ion同sMT搏E’困sMud頑tr莫ans獄por圾te堅xca乳vat雅ion劍sMu欣fa拘ir際ia-稠m柄or息e膚pe傾op作le澆k模il橡le阻d幻玉fr彈om咽M適TE豈c抖ut怨-o揚ff撿sCut漂-of喉fo型nl釀owe購rl插eve榜ls禿and絹be情hin績dMTE說’s-敲Or啄e界pa赴ss贊es-陽RA量P’舒s-D撞ecl霜ine食s-辜Ac捷ce蒼ss降esFac壟tsTai忍lin瓣gs找inr厭ush劈燕es邪gre嚴ate資rd頑ang禿erWid蠟ed熄raw蹈po吩int潛sg足rea含ter閘di念sch咽arg續(xù)eSL賠C享po腔or競c擔on逗tr姨ol2m閱ini嗎ng狗blo奔cks縱lo悄st渡wit窗hS樹LCPo煤or員m項uc持k妖pi份le徹d決ra竿in穩(wěn)ag呀e曠gr擾ea虎te有r滑da剛ng懶erAi繁r許bl網(wǎng)as緊ts化o響cc匯ur是a京ft茫er再m同ud刑r敏us久he井sFl敞oo租di度ng銹o甚cc溜ur游sDes詢tru鈴cti設on麻of霞ser謹vic比esMu姑d駕ru燃sh偉p吧re粘ve鬼nt因io縫n3D環(huán)’S機P瓶RI息NC們IP劉ALDi淋st障an兔ce窮-勢ke夸ep膀m抽ud悄f搖or膊mi母ng超m宇at馬er佛ia狡ls耽o磁ut謠o牲f楚mu屬ck膽p僵il戒eDr油ai偷n-慢k掘ee苗p股mu脂ck倒p踐il乞es衣d稍ryDr道aw也–彩go懸od咸d缸ra畝w鍬co欣nt辯ro還l羅st頑an裝da軌rd譯sMe腳an晝in綠gGo味od固d慢ra給w六co允nt令ro按l-U和nif米orm直dr辟aw屢dow柳n-d汪raw即di親sci碗pli被neDr壁ai玻na弟ge-兄Mi愁ne剩p長um次pi凍ng-S干urf秘ace泉pu忘mpi折ng-液ke酷ep晃u仔nd后er巾gr悅ou腫nd蝴w杜or去ki突ng側s球dr嘩y-系Pre盈ven撒ti僵nfl考ows對in撓mu臂ck霜pil竊e哀fro偶mu唐nde淋rgr虜oun蠅da駐nd宿sur包fac罵e-哲Hy牽dr啦o-局ge僅ol宴og闖ic朗al孟s主tu毯dyDi車st掏an寬ce-潤bo乳tt船om輔-u彎p炎ca秩vi尺ng拍m烘et貪ho籍ds哥(減re貼du飛ceSLC摩’s)-南Si緩te喝t盞ai游li種ng擊/s死li伯me用s母da訴ms院a姜wa豈y旦fr菊om恐g車lo破ry總h購ol量e-D代on憶ot沒dis炊pos錦eo眠fm注ini富ng減was怕te悔in坐glo岸ry須hol統(tǒng)e-r愚emo江ve禮mud弦fo老rmi艷ng仗mat馬eri沃al田if被pos被sib猛le-稍co冒rr棍ec貞t彩op偶en姨p筋it魄s痕lo悉pe呀d桂es耗ig費nTailingssaturatedmuckpileDrawingofdambasematerialcausespluggingofmuckpilevoidsandpreventstailingsdrainageWaterMudplugdischargedaheadoftailingscausingairblastDambasematerialSurfaceMe法an猜in養(yǎng)gUse頭sm路all象dr虛aw款poi它nt涼siz秋e(霉3.8丘m即x3.味8m)Se演al挨o夏ld贊p截as降se勞s綿an醫(yī)d載wo歡rk掌in予gsIn絲式st夠al鞠l嬌mo扔re另p橫um擱psIn君st診al夫l翻wa川te紛r探pr辯ev點en適ti嘴on幕s球ta意ll球sMud吩ru細sh頑ala鞠rmsMo管ni畏to傳ri賊ng澇p千um沈pi舅ng午l償ev水el察sLo吃we蓬r藥in艦p萬um監(jiān)pi弦ng應m外ea水ns俊w勉at濃er壞i搞n巷mu肆ck捷p特il孫eTe廚le艙-r泄em領ot全esClo杜sed然bo滿gge芹rc土abs源wi腎th索oxy雨genRe竿-i冒nf譽or名ce雪d播bo攔gg置er員c催ab刻sFl帖oo閱d柱pr搞ev邊en毒ti收on脆i厭f顛ma喪in惕p側um脹ps畢d闊es萍tr距oy新edBLA哀CK淺HAT漿AC槳TIO計NS振TRA由TEG往IESOP材ER咸AT閑IO膜N脂GE這OT捷EC墾HN摘IC骨AL卻R哨IS藏K食AS粥SE貞SM蒜EN搬TMOS雁TN類EGA慎TIV北EA肥SPE應CTSAM駕ER失IO排RA族TI事ON沸S妙TR寶AT酸EG只IE劉SNO更W脂GE尖T岸OU項T殼OF杰T倉HI碗SNOR代MA
溫馨提示
- 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
- 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權益歸上傳用戶所有。
- 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會有圖紙預覽,若沒有圖紙預覽就沒有圖紙。
- 4. 未經(jīng)權益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
- 5. 人人文庫網(wǎng)僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護處理,對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對任何下載內(nèi)容負責。
- 6. 下載文件中如有侵權或不適當內(nèi)容,請與我們聯(lián)系,我們立即糾正。
- 7. 本站不保證下載資源的準確性、安全性和完整性, 同時也不承擔用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。
最新文檔
- 現(xiàn)代制造園區(qū)的投資風險評估與管理
- 現(xiàn)代企業(yè)經(jīng)營中的稅務籌劃與風險管理
- 國慶節(jié)主題客堂活動方案
- 2024年春九年級化學下冊 第10單元 酸和堿 實驗活動6 酸、堿的化學性質(zhì)說課稿 (新版)新人教版
- Unit7 第2課時(說課稿)Story time三年級英語上冊同步高效課堂系列(譯林版三起·2024秋)
- 2《紅燭》《致云雀》聯(lián)讀說課稿 2024-2025學年統(tǒng)編版高中語文必修上冊
- 《4 做陽光少年》(說課稿)-2023-2024學年五年級上冊綜合實踐活動皖教版
- 2025水運工程施工監(jiān)理合同(試行)
- 2025企業(yè)聘用臨時工合同
- 2025鉆孔灌注樁施工合同
- 一年級下冊口算題(可直接打印)
- 公務員面試應急應變題目大全及解析
- 學校年級組長工作計劃
- 膝關節(jié)痛風的影像學診斷
- 浙江省炮制規(guī)范2015版電子版
- 冰心《童年的春節(jié)》
- 鄭州小吃詳細地點
- 上海高考英語詞匯手冊
- 2021年江蘇省淮安市淮陰中學高一政治下學期期末試題含解析
- 公共政策工具-課件
- 石油化工、煤化工、天然氣化工優(yōu)劣勢分析
評論
0/150
提交評論