Defect table

Question

On Defect table:

  1. What are Fracture Set and Defect Number for?

Answer

Fracture Set and Defect Number were added for AGS format.  This is an excerpt from AGS 4.1.1 AU 1.2:

• DISC_NUMB data variable is null (Rule 12) when logging discontinuity sets or zones.
• Each discontinuity set or zone must be given a unique set reference number in FRAC_SET. For example, joint sets may be numbered J1, J2, J3 etc, bedding discontinuities as B1, B2 etc. The use of FRAC_SET provides the link between the DISC and FRAC Groups.