Support Mechanism And Application On The Bad Position Of Roadway

The paper has study the deformation failure and development model of the entry surrounding rock , has set up mechanical model of the entry surrounding rock failured and providing mechanics to ask and solve , it is analysed the development process of roadway failure and put forward the concept and classification of the bad position of the entry and chiefly research the support mechanism of the bad position ;Using the software RFPA (rock failure process analyse ) to simulate failure-deformation law in the different bad position . According to failure development characteristic law of the bad position ,this text has put forward coupling method to enhance support in the bad position .To the concrete condition of coal-rock ,based on the support mechanism of the bad position ,It has designed and implemented the support method of the bad position and have get better result.