TY  - JOUR
T1  - Determining Length of Mining Front in Non-Blast Open Mining of
Complex Structure Carbonate Deposits
AU - Igorevich Fomin, Sergey AU - Ivan Petrovich, Vinogradov AU - Nikolay Sergeevich, Lapshin 
JO  - Journal of Engineering and Applied Sciences
VL  - 15
IS  - 1
SP  - 94
EP  - 98
PY  - 2020
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2020.94.98
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2020.94.98
KW  - Autodumper
KW  -milling surface miner
KW  -mining front length
KW  -mobile structure
KW  -complex structure
deposits
KW  -costs
AB  - Traditionally, during mining complex structure carbonate deposits, the bore-and-fire technique of
rocks preparation for excavation and loading works, is used. With all its advantages, the bore-and-fire technique
has several disadvantages. One of its major disadvantages is absence of opportunity to conduct selective
mining. Layer-by-layer milling machines enable to conduct multi-lift mining, to improve the quality of
produced minerals and to improve mining safety. Establishing the dependence of the length of the mining front
in open mining of complex structure carbonate deposits, with use of layer-by-layer milling machines, on the
specific operational costs, will enable, in practical terms, to increase the economic efficiency of mining. The
holdings having production of cement as their ultimate goal, are complex systems integrated vertically and
horizontally, include at the level of mineral resource base, not only carbonate deposits but also deposits of
non-ore construction materials required for covering their own needs of sand and sandstone. Application of
non-blast technology of developing carbonate deposits sets the same requirements to deposits of non-ore
construction materials, which are located in the vicinity of such companies. Such non-ore construction materials
include deposits of sand-gravel mixture. Application of up-to-date mobile crushing and screening equipment
enables to obtain sand and crushed stone from gravel and boulders without resorting to blast works near the
areas where sand and crushed stone are consumed. In addition, mobile crushing and screening equipment can
also be used for obtaining crushed stone from limestone produced by means of layer-by-layer milling machines.
Establishing the dependence of the length of the mining front in open mining of complex structure carbonate
deposits, with use of layer-by-layer milling machines, on the specific operational costs, will enable to optimize
the deposit mining system and to reduce, in practical terms, costs on exploration.
ER  -