Progress in experimental research on hydraulic characteristics of single-fractured rock

Abstract：Flow properties through a single rock fracture are the foundation of fluid flow research in fractured rock masses.Many researchers at home and abroad are engaging in the subject for the urgent need of engineering practice.Based on clues of numerical simulation of a single rock fracture and laboratory tests, the concepts of roughness, aperture, tortuosity and channeling flow are introduced, and influencing factors of stress, temperature, anisotropic, inlet head, scale effect, solution, etc are elaborated.Finally, some research work should be done in future are given.

Keyword：rock hydraulics;single fracture;flow model;influencing factor;