軟弱巖層中的破碎系統(tǒng)下部礦倉施工的實踐
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中圖分類號：TD263 文獻標(biāo)志碼：B 文章編號：1004-4345（2025）03-0007-04
AbstractToaddressthechallengesofconstructing large-section lowerorebins inweak rock strata-characterized byhigh technical difficulty and stringent safety requirements，an integrated construction scheme of“raise boring + drilling-blasting downward excavation/enlargement + layered concreting"was proposed and applied based on practical experience from a metal mine's crushing systemproject.Thesolutioninvolves threekeyphases：first，aguideraisewasdriledusingaraiseboring machnetoconnectwiththe lowerlevel，singasblasfreuaceanduckmoalael;sondlytopodowardargemeniadrilising withstrctlyoptizedblastparametestozeuroudngckdistubance;fiallsteelforcedocetelingisled throughsegmentwisesupportcasting.Tepracticeesultsdemonstratethatthisapproachnsuredonstructionsafetythroughpaalel operations （upper/lowerorebins）viaplanedmuckroutesadsafetyisolationmeasures，significantlyincreasedconstructiociency reducedconstruction time by15days for thelowerore bin，and acceleratedoverallcrushingsystem completion by43 days.
Keywordscrushingsystem;lowerorebin;raiseboring method;driling-blasting method;layeredcasting;weakrock strata; construction safety
溜破系統(tǒng)是地下礦山基建期關(guān)鍵工程，直接關(guān)系著整個礦山生產(chǎn)系統(tǒng)的形成I。（剩余4881字）