Determination of the Overturning Torque of the Cutting Forces of the Knife Actuating Device of the Geokhod

Vladimir Aksenov,Dmitry Pashkov,Elena Rezanova,Vladimir Sadovets,Vyacheslav Beglyakov,S Vöth,A Abay,L Sobik,M Cehlár,Y Tan,D Szurgacz,J Janocko,N Demirel

doi:10.1051/e3sconf/202131503020

Abstract

The paper considers the relevance of the research, indicated by the authors in the title of the article. As a result of the studies carried out, it was found that the overturning torque of the cutting forces occurs as a result of the imbalance of the system of cutting forces during the destruction of rocks by the actuating device of the geokhod. It was revealed that the value of the critical overturning torque of cutting forces is influenced by two force factors; this is the projection of the resistance of the soil to cutting on a plane perpendicular to the axis of rotation, as well as the total moment of resistance to cutting. As a result of the study, the critical values of the withdrawal force and overturning torque were obtained for specific mining conditions for the development and the specified geometric parameters of the actuating device of the geokhod. The resulting withdrawal force during the destruction of the face rock by the actuating device causes a deviation of the axis of geokhod rotation from the axis of the working’s route. Therefore, it becomes necessary to constantly monitor the deviation of the geokhod rotation axis from the axis of the working’s route, and, if necessary, to correct the geokhod displacement.

Highlights

With the increase in the use of underground space for human needs, it is necessary to increase the volume of construction of underground useful spaces [1,2,3,4,5]
It was revealed that the value of the critical overturning torque of cutting forces is influenced by two force factors; this is the projection of the resistance of the soil to cutting on a plane perpendicular to the axis of rotation, as well as the total moment of resistance to cutting
When the geokhod moves along the working’s route, force factors inevitably arise, which are formed during the destruction of rock with a knife actuating device (AD), which will affect the trajectory of the penetrating machine and its deviation from the working’s route

Summary

Introduction

With the increase in the use of underground space for human needs, it is necessary to increase the volume of construction of underground useful spaces [1,2,3,4,5]. As a result of a number of studies aimed at increasing productivity, a new approach to the construction of underground structures has been formed – geo-winchester technology, the basic element of which is a new class of mining equipment – the geokhod [6,7,8,9,10,11,12,13]. When the geokhod moves along the working’s route, force factors inevitably arise, which are formed during the destruction of rock with a knife AD, which will affect the trajectory of the penetrating machine and its deviation from the working’s route Such the main factor is the overturning torque of the cutting forces, which arises as a result of the imbalance of the system of cutting forces during the destruction of rocks. A study aimed at determining the overturning torque of the cutting forces of the knife actuating device of the geokhod is relevant

Methods

Results

Conclusion