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Figure 4.12. Block size, discontinuity spacing, and bedding thickness of rock

Figure 4.12. Block size, discontinuity spacing, and bedding thickness of rock

The descriptive terms used and the dimensions associated with them are the same as specified in BS 5930.

Figure 4.13 gives the EN ISO 14689-1 definition of aperture sizes.

Aperture size (mm)

Very tight

Tight

Partly open

Open

Moderately wide

Wide

Very wide

Eitre -mely

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