ON THE INFLUENCE OF LONGWALL MINING ON THE DEFORMATION OF THE OPERATIONAL EXCAVATIONS-Reference-Cited by-同舟云学术

ON THE INFLUENCE OF LONGWALL MINING ON THE DEFORMATION OF THE OPERATIONAL EXCAVATIONS

Published:2023-12 Issue:65 Volume:4 Page:97-105
ISSN:1995-0470
Container-title:Mechanics of Machines, Mechanisms and Materials
language:
Short-container-title:MMMM

Author:

POLYAKOV Andrey L., ,LAPATSIN Siarhei N.,MOZGOVENKO Maksim S.,RACHKOVSKIY Maksim A., , ,

Abstract

The paper presents the results of numerical modeling of the geomechanical behavior of the system “lava — operational excavation — enclosing potash rock mass” during mining operations. Numerical modeling includes a forecast of the mechanical behavior of the system at all stages of the system existence: from the natural stress-strain state (SSS) of the rock mass to excavation and safety measures installation, as well as the longwall mining operations. The results of numerical experiments are verified using the data from field studies of convergence of the roof and floor of the operational excavation and the side walls of this excavation. As a result of the studies, it is established that longwall mining has a significant impact on the operational excavation at a distance of about 40 m or less. In addition, the paper describes an algorithm for numerical simulation of the geomechanical behavior of the considered geotechnical system.

Publisher

Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus

Subject

General Earth and Planetary Sciences,General Environmental Science

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