Research on bearing capacity of mining W-shaped steel belt
PANG Wei-feng
YANG Dong
LIANG Xiao-wei
MA Jia-hui
Abstract：Controlling the deformation of surrounding rock in roadways has always been the primary issue facing roadway supporting,and the steel belt,as a key member of the joint supporting member of the roadway,can enhance the range of action of the anchor+steel belt supporting and greatly increase its supporting capacity.In this paper,the bearing capacity of single W-shaped steel belt was calcu-lated by means of theoretical calculation and actual parameter verification,and the results showed that:①The scope of anchor rod action was limited,and part of the overlying unstable rock acted on the belt,and was related to the inter-row distance of anchor rod;②The bearing capacity calculation formula of single steel belt was calculated by means of material mechanics,and it was found that the bearing capacity of a single steel strip is mainly determined by the strength of the steel belt,the elastic modulus of the steel belt,and the moment of inertia of the steel belt section.③The load carrying capacity formula of single steel belt was checked by the actual roadway anchor+steel belt supporting parameters,and it can meet the requirements.
Keywords：W-shaped steel beltbearing capacitycalculation verification
Publication Date：2024-04-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 86-88 )