This paper discusses merits and draws backs of some manual and computer methods used in solving transportation problem in mining. The transportation model deals with a special class of linear programming problems in which objective is to "transport" a single commodity from various "origins" to different "destinations" at minimum total cost. The total supply available at the origins and total quantity demand by the destinations are given in the statement of the problem. Two manual methods (Northwest-corner rule, Vogel's approximation) are used in solving small dimensions problems. Two soft-wares (premium solver platform, Lindo) are used in solving the same problem. It is found from the obtained results that: firstly, the Northwest-corner rule is used to find the optimum solution while Vogel's approximation method is used as advanced step to the optimum solution. Secondly, the premium solver platform is better than Lindo software

This paper discusses merits and draws backs of some manual and computer methods used in solving transportation problem in mining. The transportation model deals with a special class of linear programming problems in which objective is to "transport" a single commodity from various "origins" to different "destinations" at minimum total cost. The total supply available at the origins and total quantity demand by the destinations are given in the statement of the problem. Two manual methods (Northwest-corner rule, Vogel's approximation) are used in solving small dimensions problems. Two soft-wares (premium solver platform, Lindo) are used in solving the same problem. It is found from the obtained results that: firstly, the Northwest-corner rule is used to find the optimum solution while Vogel's approximation method is used as advanced step to the optimum solution. Secondly, the premium solver platform is better than Lindo software

Evaluation of blast performance is considered of high interest for mine operators to improve blasting results. Within the scope of this study, the aim is to determine the optimum blasting conditions in Tourah-quarry, Helwan, Egypt. Guidelines have been suggested for a step-by-step trial blasts to evaluate blasting results in Tourah quarry. Thirty full scale production blasting events in Tourah quarry have been conducted and the results have been recorded. Two design parameters have been investigated. These parameters are initiation point and primer location inside the blast hole. The objective has been achieving optimum blast results: adequately displaced and swelled muck pile; desired fragmentation degree; less uneven rock face and minimum environmental problems such as ground vibrations, and flying rock.

Evaluation of blast performance is considered of high interest for mine operators to improve blasting results. Within the scope of this study, the aim is to determine the optimum blasting conditions in Tourah-quarry, Helwan, Egypt. Guidelines have been suggested for a step-by-step trial blasts to evaluate blasting results in Tourah quarry. Thirty full scale production blasting events in Tourah quarry have been conducted and the results have been recorded. Two design parameters have been investigated. These parameters are initiation point and primer location inside the blast hole. The objective has been achieving optimum blast results: adequately displaced and swelled muck pile; desired fragmentation degree; less uneven rock face and minimum environmental problems such as ground vibrations, and flying rock.

Evaluation of blast performance is considered of high interest for mine operators to improve blasting results. Within the scope of this study, the aim is to determine the optimum blasting conditions in Tourah-quarry, Helwan, Egypt. Guidelines have been suggested for a step-by-step trial blasts to evaluate blasting results in Tourah quarry. Thirty full scale production blasting events in Tourah quarry have been conducted and the results have been recorded. Two design parameters have been investigated. These parameters are initiation point and primer location inside the blast hole. The objective has been achieving optimum blast results: adequately displaced and swelled muck pile; desired fragmentation degree; less uneven rock face and minimum environmental problems such as ground vibrations, and flying rock.

Evaluation of blast performance is considered of high interest for mine operators to improve blasting results. Within the scope of this study, the aim is to determine the optimum blasting conditions in Tourah-quarry, Helwan, Egypt. Guidelines have been suggested for a step-by-step trial blasts to evaluate blasting results in Tourah quarry. Thirty full scale production blasting events in Tourah quarry have been conducted and the results have been recorded. Two design parameters have been investigated. These parameters are initiation point and primer location inside the blast hole. The objective has been achieving optimum blast results: adequately displaced and swelled muck pile; desired fragmentation degree; less uneven rock face and minimum environmental problems such as ground vibrations, and flying rock.