金川二矿区岩层属流变体,先期曾采用过喷锚支护,但遭到了失败。其原因是把流变体地压问题简单地视为传统松散体支护问题,应用以支撑为目的的支护原理来看待喷与锚的作用,忽视了对地压活动规律的认识。本文强调对不同来源的地压应当采用不同支护原理和支护方法,支护刚度和支护工艺必须适应地压活动规律。作者通过现场实测和有限元计算,来认识地压活动规律,并根据地压活动状态来设计喷锚结构和支护工艺方法。通过认识地压活动规律来解决围岩稳定问题。 The Jinchuan No.2 mining area is a rheological structure, which has been sprayed and anchored previously, but failed. The reason for this is that simply considering the problem of ground pressure of rheological deformation as the traditional support of loose body, the role of squirting and anchoring is treated by the supporting principle of support, ignoring the understanding of the law of underground pressure. This paper emphasizes that different supporting principles and supporting methods should be adopted for the ground pressure of different sources. The supporting stiffness and supporting technology must adapt to the law of underground pressure. Through field measurement and finite element calculation, the author knows the law of ground pressure movement and designs the shotcrete and bolt structure and support technology according to the state of ground pressure activity. By understanding the law of underground pressure to solve the problem of rock stability.