RQD and Fracture Spacing

by Richard E. Goodman, (M.ASCE),
H. Rodney Smith,

Serial Information: Journal of the Geotechnical Engineering Division, 1980, Vol. 106, Issue 2, Pg. 191-193

Document Type: Journal Paper


Due to an abundance of published empirical data. Rock Quality Designation (RQD) values (1) are commonly used for estimating rock-foundation performance in engineering practice. However, a numerical analyses can be performed more easily with a knowledge of average fracture spacing and load deformation behavior of the intact rock and the fractures.

Subject Headings: Cracking | Spacing | Rocks | Empirical equations | Engineering profession | Numerical analysis | Load factors | Deformation (mechanics)

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