Gray degree relation analysis is advanced according to the grey features of rock body steadiness grading.It is proved scientific,reliable,simple and easy to conduct according to the practical data.

• 根据岩体稳定性分级的灰色性，提出了岩体稳定性分级的灰色关联分析法，并经实测数据进行验证，说明此方法是科学可靠的，且简单易行。