Imekobume eyonakalisa kakhulu ebangelwa yimpembelelo yokwakheka komhlaba ibonakalisa uMgodi weZinc waseGeorge Fisher kwingingqi yemigodi yaseMount Isa eMntla Australia. Ngenxa yoko, umnini-ndlu, i-Xstrata Zinc, i-subsidiary yeqela lemigodi elisebenza kwihlabathi jikelele i-Xstrata Plc., wayefuna ukuqinisekisa ukhuseleko olululo lwe-corrosion ngokugqunywa ngokupheleleyo kwee-ankile kumngxuma wokugrumba ngexesha lokuqhuba.
I-DSI yase-Australia ibonelele ngeekhemikhali ze-TB2220T1P10R Posimix Bolts ukwenzela i-anchorage. Iibholiti ziyi-2,200mm ubude kwaye zinobubanzi obuyi-20mm. Kwikota yesine ka-2007, iDSI Australia yenze uluhlu olubanzi lovavanyo ngokubambisana neXstrata Zinc kwisiza. Uvavanyo lwenziwe ukufumana eyona mali ingcono kakhulu yokufakwa kwee-ankile ngokutshintsha ubungakanani bemingxuma kunye neekhatriji zeresin.
Kunokwenziwa ukhetho ukusuka kwi-1,050mm yeekhatriji zeresin ende ezinamacandelo aphakathi kunye acothayo kwi-26mm kunye ne-30mm yedayamitha. Xa usebenzisa ikhatriji eyi-26mm kumngxuma wemingxuma oyi-35mm ubukhulu obuqhelekileyo kolu hlobo lwe-ankile, iqondo lokugquma le-55% laphunyezwa. Ngenxa yoko, amalingo amabini angamanye aye aqhutywa.
- Ukusebenzisa ikhatriji yeresin efanayo kunye nokunciphisa umngxuma wequla ukuya kutsho kubuncinane bedayamitha eyi-33mm kuzuze ukugqunywa kwe-80%.
- Ukugcina i-borehole idayamitha eyi-35mm kunye nokusetyenziswa kwekhatriji enkulu yentlaka enobubanzi obuyi-30mm kubangele ukugqunywa kwe-87%.
Zombini iimvavanyo ezizezinye zizuze iqondo lokugquma okufunwa ngumthengi. I-Xstrata Zinc ikhethe enye indlela yesi-2 kuba i33mm drill bits zange iphinde isetyenziswe ngenxa yeempawu zamatye zalapha. Ukongeza, iindleko eziphakamileyo ezincinci zeekhatriji ezinkulu ze-resin zingaphezulu kokuhlawulwa ngokupheleleyo ngokusetyenziswa okuphindaphindiweyo kwe-35mm drill bit.
Ngenxa yoluhlu oluyimpumelelo lovavanyo, i-DSI Australia yanikwa isivumelwano sokubonelela ngee-anchors ze-Posimix kunye ne-30mm ye-resin cartridges ngumnini-mgodi, i-Xstrata Zinc.
Ixesha lokuposa: 11 月-04-2024
