Impact of the number of blades of the geokhod cutting body on the energy intensity of the rock destruction

Abstract

The article presents the sequence of calculating the energy intensity of the rock destruction with the blade of the geokhod cutting body. The influence of the number of cutting elements of the geokhod body on the energy intensity of rock destruction is determined. To substantiate the relevance of the study, features of the new class of mining machines – geokhods and the main provisions of geokhod technology are presented. The main research stages are formulated, based on the method for determining the energy intensity of the destruction of the rock face with the blade of the geokhod body. Geometrical features and power parameters of the geokhod blade cutting body that affect the energy intensity of rock destruction are identified. To determine the influence of the number of blades of the geokhod body on the energy intensity of the destruction of the rock face, the geometrical parameters of the blade body and the parameters of the mining and technical conditions of the mine working are substantiated. For carrying out mathematical calculations, an algorithm has been developed for calculating the energy intensity of the destruction of a rock face with a blade body a geokhod. As a result of the study, it was revealed that the energy intensity of the destruction of rock with the blade cutting body increases unevenly with increasing number of blades.

Development of a mathematical model of the interaction of the knife actuator of geokhod with the semiconvex shape of the cutting edge of the knife with the mine faces rock

“…In this regard, interest in the use of underground space is expanding, thereby the volume of construction of underground structures increases [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 -Geokhod technology, the basic element of which is a new class of mining equipment -Geokhod [6][7][8][9]. The development of Geokhod prototypes is constrained by the lack of scientific foundations for the creation of their systems.When constructing underground structures in the technological cycle, one of the main stages is the process of separating rocks from the massif.…”

Center for Testing Tunneling Underground Apparatus Interacting With the Geo-Environment. Areas of Research

“…Принципиальные отличия геоходов и их конкурентные преимущества перед традиционными проходческими системами приведены в работах [6][7][8][9][10][11][12].…”

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“…Один из примеров ПА класса «геоход» представлен на рисунке 1. В отличие от существующих подходов авторы рассматривают проходку подземных выработок как процесс движения твердого тела (подземного аппарата) в твердой среде (геосреде) [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].…”

“…Отсутствие специального научного и методологического обеспечения является сдерживающим фактором [9,[23][24][25][26][27][28][29][30] на пути создания нового класса ПА.…”

“…В направлении создания и отработки принципиально новых конструктивных решений выполнения узлов, систем и ПА в целом выполнены первые исследования и получены результаты [9,10,19,26]. Но эти результаты, как показывает опыт, в целом можно расценивать как получение «разведданных» для принятия решений по выбору направлений дальнейших исследований и созданию экспериментальных образцов ПА.…”