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第29卷第5期2009年lo月 矿冶 工 程
MININGANDMETALLURGICALENGINEERING V01.29№5 0ctober 2009
充填钻孔内管道磨损的影响因素及保护措施① 王贤来”,郑晶晶1,张钦礼1,王新民1
(I.中南大学资源与安全工程学院,湖南长沙410083;2.金川集团有限公司,甘肃金昌737100)
摘要:针对充填钻孔内管道磨损导致钻孔报废的问题,调查了金川矿区充填钻孔的使用情况,根据破损报废充填钻孔的统计参数,发现充填钻孔内管道磨损的影响因素有:充填料浆特性、管道直径、钻孔偏斜率、管道材质、管道安装质苣、充填倍线及钻孔级数等。探讨了充填钻孔内管道局部严重磨损的原因,提出了钻孔内管道严重磨损深度位置的确定方法以及延长充填钻孔使用寿命的措施,为深井矿山充填钻孔设计维护提供了理论依据。关键词:充填钻孔;充填料浆;钻孔寿命;防止措施中图分类号:P634
文献标识码:A
文章编号:0253—6099(2009)05—0009—04
InfluencingFactors on
theAbrasionofPipelinesin
BackfillDrillingandProtective Measures
WANGXian-lail’2,ZHENGJing-jin91,ZHANGQin—lil,WANGXin—minl
(1.Schoolof Resourcesand Safety
Engineering,CentralSouthUniversity,Changsha410083,Hunan,China;2.Jin-
chuanGroupLimited,Jinchang737100,Gansu,China)
Abstract:The use
ofbackfilldrillingholesinJinchuandiggingswasinvestigatedinviewoftheproblemthattheabra—
sionofpipelineinbackfilldrillingholesalwaysresultsinthecrappingofdrillingholes.Based
on
thestatisticparameter
ofdestructeddrillingholes,itisfoundthattheinfluencingfactorsofbackfillpipelines’abrasionincludethefeaturesof
backfill
slurry,thediameter,thedeflectionofbackfilldrillinghole,materialandinstallationqualityofpipelineinthe
hole,thestowinggradientandtheorderofdrilling.Thereason
ofpartialpipelines’seriousabrasionwas
discussed.Themethodtoconfirmthepositionofbackfilldrillingholesseriouslybrokenandmeasurestoextendbackfilldrillinghole’Slirewereput
forward.The
researchingresultsprovide