DOI: 10.11799/ce201603014
Analysis on coupling performance of hydraulic support and weak surrounding rock in fully mechanized coal mining face in Nothern Anhui mining area
LIU Jun-feng
WANG Guo-fa
WANG Fu-qing
REN Huai-wei
Abstract：Aiming at the characteristics of weak surrounding rock in Nothern Anhui mining area, the movement law of weak surrounding rock in different location is analyzed, it is concluded that the effect on working face support of immediate roof, immediate floor and coal seam and main roof decreases successively. Based on the analysis on stiffness coupling, intensity coupling and stability coupling between the soft surrounding rock and support in the fully mechanized working face, there are 2 aspects needs consideration in determination of the support intensity, roof supporting and surrounding rock integrity control. The determination method of setting intensity is proposed, the design requirements of hydraulic support in weak surrounding rock are completed. Mining practice shows that the hydraulic support is designed reasonably meeting the requirements of fully mechanized mining face in weak surrounding rock.
Keywords：weak surrounding rocksetting intensitysupporting intensitysupport - surrounding rock couplinghydraulic support design
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 42-45 )