Cov tsheb thauj khoom tsuas yog qhov tseem ceeb ntawm kev thauj khoom hauv cov mines, shuttling txhua hnub ntawm cov chaw mining thiab unloading point. Lawv cov thawv ntim khoom, thav duab, thiab cov khoom tiv thaiv ntsib kev hnyav hnyav heev. Thaum thauj, ore, slag, thiab lwm yam ntaub ntawv tsis tu ncua rub tawm ntawm phab ntsa sab hauv ntawm lub thawv ntim khoom, thiab kev cuam tshuam los ntawm cov khoom loj tuaj yeem ua rau deformation. Cov thawv ntim khoom qub feem ntau tsim kev hnav- los ntawm thiab dents nyob rau hauv lub hlis, yuav tsum tau kho ntau zaus thiab cuam tshuam rau kev thauj mus los vim cov khoom xau. Lub caij no, lub thav duab, raws li cov tub ntxhais load-cov kabmob tivthaiv, tiv taus cov khoom hnyav rau lub sijhawm ntev thiab nws yooj yim rau khoov thiab deformation vim tsis muaj zog.
Baohua hnav- cov hlau tsis muaj zog rau cov tsheb thauj khoom tsuas yog ua raws li cov yam ntxwv ntawm kev ua haujlwm ntawm cov tsheb mining. Thaum siv hauv lub thawv ntim khoom, nws tsim cov txheej txheem tiv thaiv zoo, txo cov khoom sib txhuam hnav, tiv thaiv kev cuam tshuam los ntawm cov pob zeb loj, thiab tiv thaiv kev puas tsuaj ntxov ntxov. Thaum siv hauv thav duab, nws lub zog siab ua kom cov ncej tuaj yeem tiv taus cov khoom hnyav rau lub sijhawm ntev yam tsis muaj deformation, lav kev nyab xeeb ntawm kev tsav tsheb. Tsis tas li ntawd, lub teeb yuag zoo ntawm Baohua hnav- cov hlau tsis muaj zog rau cov tsheb thauj khoom nce ntxiv - cov kabmob muaj peev xwm thaum txo cov tsheb thauj khoom. Hauv qhov qhib loj - qhov mines, kev siv Baohua hnav- cov hlau tsis muaj zog rau cov tsheb thauj khoom hauv cov tsheb mining tuaj yeem txo cov haujlwm txij nkawm, ncua kev pabcuam lub neej ntawm lub tsheb thauj khoom, ua kom muaj peev xwm thauj tau ib leeg, thiab tsim cov txiaj ntsig zoo dua rau cov tuam txhab mining.
