河南新蔡铁矿绳钻工艺出现的问题及其对策

0，ZK5604，1380m，。，2012，XJSΦ77mm。50mm，638m，668.49m，Φ215mm，，Φ114.3mm×6.35mm661.82m，Φ101.6mm,。XJSΦ77mm668.49m，710mΦ71mm，，750.50m，4，220Φ71mm、。806.38m，5（1）。，，（2）。，。，，200，200，730，。，，，，。137.89m。Φ94mmWire-lineCoringDrillingProblemsArisenandCountermeasuresinXincaiIronMine,HenanWangZhenghao,YanXiaojuandYangXiaogang(TheFirstExplorationTeam,HenanBureauofCoalGeologicalExploration,Xinzheng,Henan451150)Abstract:Tocarryoutdeepboreholewire-linecoringdrillingtechnicalstudyinironmines,theexplorationboreholeZK5604hasbeenselectedintheXincaiironmine.UsingcommondrillingtechnologydrilledtheoverlyingQuaternaryandNeogenestratauptodepth668.49m,reamedwithφ152mmbitandlowereddownφ114.3mmcasingto661.82m,thendrilledwithXJSφ77mmwire-linecoringdrilling.Afterdrilledto730mmore,φ71mmwire-linerodsandsubsfracturephenomenawerefrequent,causingwire-linecoringdrillinginterrupted.Thencommondrillingwithφ94mmdiamondbithasbeenusedtodrillthroughlowerpartstratauptotheterminaldepthof1412m.Theanalysesconsideredthat:themaincausationoffrequentaccidentsismainlyfromwire-linedrillingrodfatiguefailure,unreasonabledrillinggraduation,equipmentfailureandunskillfuloperationetc.Correspondingcountermeasureshavebeenputforward,thusaccumulateddataforwire-linecoringdrillingstudyinthearea.Keywords:wire-linecoringdrillingtechnology;rodsubscrewfracture;causationanalysis;technicalcountermeasure;Xincaiironmine，，（，451150）：，ZK5604。668.49m，Φ152Φ114.3661.82m,XJSΦ77。730，Φ71，，Φ941412m。：、、，，。：；；；；：P634.5：ACOALGEOLOGYOFCHINAVol．25No．03Mar.201325320133：1674－1803（2013）3－0068－04doi：10.3969/j.issn.1674-1803.2013.03.17：（1965—），，，，，。：2013-01-31:332Table2Boreholedeviationandcalipermeasurementinstances1Table1Wire-linedrillingrodcouplingfractureinstances。1：①。0～325m,325m,、、，，，。②。325～636m,311m，。③。636～856m,220m,、,200m；，。，。④。856～1412m,556m,、、、、、、、、。，，，。2XY-6B，NBB260/7A，JS30-18A，YTW-75-4，JHP-2，NJB800，SX-1500，Φ71mm1400m,XJSΦ77mm／m／m1732.72710：175rpm、800～900kg、106L/min2737.647173743.212344750.577405782.94172678717210m7799.016728804.527219806.3877810734213：260rpm、600～800kg、106L/min11757.93735.60：175rpm、600kg、106L/min／m／（°）／（°）／m／mm1500.7857.0050101.0021000.5554.10100101.0031500.73287.70150101.0042000.6830.60200101.0052500.6843.00250101.0063000.6081.40300101.0073500.5729.40660101.0084000.81127.90662125.0094502.06117.50670161.70105003.5948.70680144.60115504.17309.80700117.50126003.78321.60720145.00136504.28318.00740118.60147006.1850.40760111.70157507.7450.10780101.00168006.7043.2080088.10178507.2146.1080585.00，：6925252。3，，，。3.1。668.49m，，730，，。，：、、。，，，，，，；，，，。，，，，，，2~3，，，，GB3423GB/T16951，，（1）。3.2。Φ114.3mm×6.35mm（Φ101.6mm），Φ89mm，Φ77mm，，、，。85～160mm，。，15%～20%，Φ71mm，Φ85mm，，，，，，，，；1.5，，，，；，Φ50mm，，，，，（2）。3.3XY-6B。、、、1Figure1Wire-linedrillingrodscrewfracturephotos2Figure2Aschematicdiagramofboreholeconfiguration7033，，，36.5%。，，，，，，，，。3.4，，，。，，。，，，。44.1，，，，，。，：①，Φ152mm，，Φ133mm，Φ127mm。②Φ133mm，，Φ108mm。③Φ96mm。④1200m，Φ96mm，，Φ89mm，Φ71mm，Φ77mm。4.2，，，，，，，。：①Φ152mm，：Φ152mm+Φ89mm；②Φ133mm，：Φ133mm+Φ89mm；③Φ96mm，：Φ96mm+Φ89mm；④Φ77mm，：Φ77mm+Φ71mm。4.3，，、、、，、，，、、，、、、，，，；，、。4.4，，，，，，。：⑴，，【M】.：，1989.⑵，，【J】.（）2007，（7）：16-17⑶，，【J】.（）2010,37（1）：16-19⑷，、【J】.（）2012.39（3）：37-39.50.，：71