Research and Application of Surrounding Rock Support Technology in Mining Roadway
In order to study the surrounding rock support technology of the mining and excavation roadway,taking the return air channel of Longfeng Coal Industry 10402 working face as the background,a systematic study of the roadway support technology was conducted using methods such as on-site investigation,engineering analogy,theoretical calculation,numerical simulation,and engineering practice.Through engineering analogy and theoretical calculation,the main support parameters of the tunnel anchor(cable)were preliminarily obtained.On this basis,the failure and stress characteristics of the surrounding rock of the excavation tunnel after it tends to stabilize were analyzed through numerical simulation,and the rationality of the anchor support parameters was verified.Based on previous tunnel support practices,a tunnel support plan has been determined.Engineering practice has shown that the tunnel support scheme is reasonable and the deformation of surrounding rock is small,which can meet the requirements of surrounding rock control.
NETL
NSTL
万方数据
