Data for: Regression model for predicting tunnel strain in strain-softening rock mass for underground openings

Evaluation of geological parameters for strain-softening rock mass with Hoek-Brown failure criterion. Based on the poposed method, the strength prameters and deformation parameters for the strain-softening rock mass can be determined by GSI.采用霍克-布朗破坏准则（Hoek-Brown failure criterion）对应变软化岩体（strain-softening rock mass）的地质参数开展评估。基于所提出的方法，可通过地质强度指标（GSI）确定该类应变软化岩体的强度参数与变形参数。