e cavation of high stressed hard rock with roadheader

WAMBA

Numerical simulation of rock fragmentation process by

A numerical model of rock fragmentation caused by a roadheader pick was established based on the particle flow code in two dimensions to study the rock fragmentation mechanism of the roadheader pick. The model simulated crack initiation, propagation and chip formation. The feasibility and reliability of the method as well as numerical model were verified by experiment. Results show that the

Roadheader – A comprehensive review - ScienceDirect

Hongxiang et al. (2013) developed a PFC2D model to study rock fragmentation by RH pick and concluded that damage in hard rock is more remarkable than in soft rock. Chuanming (2013) proposed a multi body dynamic analysis method for the planetary reducer for the roadheader arm with the help of Pro/E and ADAMS Software(s).

(PDF) Rock Mechanical Aspects of Roadheader Excavation

Rock Mechanical Aspects of Roadheader Excavation ... and abrasivity is the major limiting factor for roadheader use in hard rock [2] ... the excavation process under high geo-stress condition was

Excavation of High-Stressed Hard Rock with Roadheader

Drill and blast method becomes unfavorable for deep mining of hard rock. Mechanical excavation with roadheader EBZ160TY was trialed at work face with hard rock and high ground stress. Work procedure and performance of the roadheader were recorded and analyzed. The results showed that, roadheader EBZ160TY, with designed excavating strength of 80 MPa, presented amazingly good performance in hard

(PDF) Analysis of Roadheader for Breaking Rock Containing

Analysis of Roadheader for Breaking Rock Containing Holes under Confining Pressures. ... when cutting rock under high confining ... analyze the cutting performance of the roadheader under stress

Excavation of High-Stressed Hard Rock with Roadheader

Drill and blast method becomes unfavorable for deep mining of hard rock. Mechanical excavation with roadheader EBZ160TY was trialed at work face with hard rock and high ground stress.

Experimental and numerical investigation of roadheader for

Abstract The purpose of this study is to investigate the dynamic characteristics of a roadheader for breaking rocks containing different numbers and sizes of predrill holes. A series of experiments

Excavation of High-Stressed Hard Rock with Roadheader

ADS Classic is now deprecated. It will be completely retired in October 2019. This page will automatically redirect to the new ADS interface at that point.

Previous: kolkata mining graphite in the philippines
Next: cost graphite grinding mill

Related Articles

e cavation of high stressed hard rock with roadheader