摘要
This paper describes the procedures for design of supports and stabilization measures in the roadways.The procedures are based on the system developed in Ostrava-Karvina coal basin in Czech Republic.The calculation of load bearing capacity of roadway supports contains the period of roadway construction and mining in the vicinities,based on the size of the natural rock arch.The loading of supports during mining comes from a stress wave in the rock mass in the forefront of coalface and the caving area of mined-out panel.The input data for the calculation method are deduced according to in-situ measurements of convergence and displacement in the roadways.
This paper describes the procedures for design of supports and stabilization measures in the roadways.The procedures are based on the system developed in Ostrava-Karvina coal basin in Czech Republic.The calculation of load bearing capacity of roadway supports contains the period of roadway construction and mining in the vicinities,based on the size of the natural rock arch.The loading of supports during mining comes from a stress wave in the rock mass in the forefront of coalface and the caving area of mined-out panel.The input data for the calculation method are deduced according to in-situ measurements of convergence and displacement in the roadways.
基金
the framework of the research plan:physical and environmental processes in lithosphere induced by anthropogenic activities (AV0Z30860518)
