Concentration Factor of Stress around Non-Circular Underground Roadways;

Rules and support ways of roadway support and wall rock common loading;

Quantitative prediction and evaluation on the regularity of asymmetric damage and distortion upon broken rock mass roadways;

Optimization of Drift Support in Loose and Fractured Host Rock;

Research on Comprehensive Control Technique for Heavy Roof Fall in Weak Mudstone Drift;

Study on the controlled perimeter blasting for drift in soft rock;

Research on Integrated Construction Technology for Tunnel Conjunction in Complex Geological Circumstance of Igneous Rock;

Grinds Changes and the Application of The Mine Ttunnel Impractical Flexible Rope Way Transportation Pulley;

Design and development of coal mine tunnel automatically generation module;

Key Technology of Automatically Drawing Mine Map——Heterogeneous Attribute Roadways Drawing and Dimensioning;

With the large-scale exploitation performance and deep mining,the support problems of special soft rock roadways under high stress become increasingly serious.

By means of numerical simulation software 2D-σ for geotechnic engineering,this paper analyzes the effect of bolt grouting support in soft rock roadways.

Study on laneway excavation monitoring and best secondary support time with new austrian tunnelling method;

On Relation between Fracture Structure and Laneway Stability;

Evolution of supporting theoretical study and destroy mechanism of laneway in high stressed soft rocks;