15777

14084

كارشناسي ارشد

استخراج مواد معدني

اصفهان : دانشگاه صنعتي اصفهان

1399

دوازده، 94ص. : مصور، جدول، نمودار

هادي حسيني

احمدرضا صيادي

راحب باقرپور، مسعود چراغي سيف آباد

1399/06/22

كتابنامه

معدن

مهندسي معدن

1399/07/05

2631103

AbstractThe roads are the main infrastructures of the mine production and are known as the physicalassets of mines Paying attention to their construction and maintenance leads to incrementof the mine production and causes a major reduction in costs including the machinery androad maintenance costs Tire cost is one of the top rated costs associated with machinery thatis directly affected by the mine roads Nowadays due to the political conditions and therestrictions of importing of this products the optimization the consumption rate of thesecapital intensive parts are essential for all Iranian mines On the other hand increasing theuseful life of the tires is known as a great commitment in road maintenance process In thiss research the roads of Gol e Gohar iron ore mine is evaluated by focus on tire failures andwear After identifying the main roads in terms of traffic volume the intensity anddistribution of functional defects roughness granulation of wearing course materials andgeometric characteristics of each section of the road were evaluated According to fieldstudies it was found that just 8 6 of roads are undamaged Also none of the studied roadshave standard width while 37 were identified as narrow and dangerous width Based onlaboratory studies and the results of wearing course material s granulation it was found thata high percentage of road sections do not follow the proposed standard granulation Analysisof shape indices of road wearing course materials showed that most of the particles are highelongated and sharp which causes the destruction and high wear of the truck tires Keywords Mine ramp Functional defect score Road Roughness Wearing course materialsgranulation Shape Factor Aspect Ratio

هادي حسيني

احمدرضا صيادي

راحب باقرپور، مسعود چراغي سيف آباد