Навоий давлат кончилик институти ҳузуридаги илмий даражалар берувчи dsc

K.S. Sanakulov 
Chairman of the Scientific Council for awarding
The scientific degrees, Doctor of Technical Sciences, Professor 
Sh.Sh. Zairov 
Scientific Secretary of the Scientific Council for 
Awarding of scientific degrees, Doctor of Technical Sciences, Professor
 
I.T. Mislibayev 
Chairman of the Scientific Seminar at the Scientific 
Council for the award of academic degrees,
Doctor of Technical Sciences, Professor 

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INTRODUCTION (the dissertation abstract of (PhD) Doctor of Philosophy)
The aim of the research 
is to develop a rational technological scheme for 
transporting rock mass using heavy-duty dump trucks in the lower zone of a deep 
pit. 
The object of the research 
is the transport systems of deep pits and energy 
performance of heavy-duty dump trucks 
The scientific novelty of the study is as follows: 
the rational scope of application of technological schemes for transporting 
rock mass using heavy-duty dump trucks on the deep horizons of the quarry is 
determined; 
the parameters of the width of the transport berm affecting the overall 
dimensions of the dump truck, which in turn affects the design of the side of the 
deep pit and the volume of extracted rock mass are determined; 
mathematical modeling of the operation of technological transport, taking into 
account mining factors such as the performance of dump trucks, the slope of the 
route, the average speed of transport, the performance of dump trucks when 
performing maneuvers, as well as planning the operation of quarry vehicles; 
it is established that with the increase in the depth of work, the transition and 
introduction of dump trucks with a load capacity of 180-220 t during the technical 
re-equipment of the excavator-automobile complex makes it possible to improve 
its management system.