轻质吸能材料在地下矿山巷道让压支护中的数值模拟研究.

The support of complex and fractured surrounding rock tunnels is one of the challenges that should be dealt with urgently during the development process of deep gold resources. At present, mines often use joint support methods with steel arch frames and wood. However, due to the inflammable and easily corrosible properties of wood, it is not applicable for permanent underground mine support. Therefore, based on the numerical simulation study, this paper proposes to use new type of support materials with lightweight energy-absorbing characteristics as the lining to replace the wood in the support of tunnels.The theoretical analysis shows that the new type of support materials has obvious energy absorption and pressure relief effects and is more suitable for the pressure relief support system for complex and fractured tunnels. [ABSTRACT FROM AUTHOR]