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Large Sections Roadway at Intersection of Rock Support Design
Author(s): 
Pages: 23-24,38
Year: Issue:  5
Journal: Coal

Keyword:  cross roadwaystress concentrationsupporting scheme;
Abstract: Large sections roadway at the intersection of surrounding rock deformation control is one of the major challenges in modern large-scale coal mines production processes.Wang-zhuang coal mines 9101 return yard and rubber-tyred vehicle roadwayⅡare be-long to large rectangular section of roadway, study on cross the roadway surrounding rock deformation characteristics and location of the control parameters through theoretical and field measurement.The results show that roof and acute angle at the corner of the roadway have High stress concentration factor, stability of surrounding rock is poor, the rock is crusher.As a basis for the design of the rear an-chor net support scheme site implementation, roadway's sides maximum closer is 15mm,roof maximum amount of subsidence is 14mm, control is better.
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