RMC

This web application has been developed to calculate the Rock Mass Rating (RMR) using the continuous functions derived from the research studies of Kundu et al. (2020) and Rusydy et al. (2024).

Continuous RMR Calculator

Name of Surveyor *

Street Address *

City

State/Province

ZIP / Postal Code

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Date *

Slope ID

Slope Angle

Height of the Slope (m)

Unit Weight of intact rock

Uniaxial Compressive Strength (UCS) in MPa *Please enter the value of UCS, not a UCS Rating

RQD *Enter the value of RQD

Spacing (mm) *

Joint Condition

Persistence (meters) *Please enter a length of discontinuity plane.

Aperture/Separation (mm) *

Roughness (Input the JRC value) *

Infilling (mm) *

Weathering (Input I5 value in %) *

Water Condition (input the SPI score) *

The RMR Total