Sound jezgro interval
Unos Run length 1.00 m, jezgro pieces 32 cm / 28 cm / 22 cm / 18 cm
Izlaz RQD 100.0%, oporavak jezgra 100.0%, quality class Excellent
Interval-by-interval checks
Interval-by-interval checks
Supports decimal commas
Deljenje URLs and lokalno nacrti
Kalkulator RQD / oporavka jezgra
Review interval-by-interval jezgro length, recovered length, RQD, oporavak jezgra, and gubitak jezgra in one place.
It supports both from/to interval entry and direct jezgro piece lengths, with jedinice and decimal places controlled from Podešavanja.
Samples
Fractured interval
Unos Run length 1.00 m, jezgro pieces 18 cm / 14 cm / 9 cm / 8 cm / 7 cm / 6 cm / 5 cm / 4 cm
Izlaz RQD 32.0%, oporavak jezgra 71.0%, quality class Poor, fracture zone flagged
Low-recovery long run
Unos Run length 10 ft, jezgro pieces 18 in / 12 in / 8 in
Izlaz RQD 31.7%, oporavak jezgra 31.7%, loss flag shown
Frequently asked questions
What is RQD?
RQD stands for Rock Quality Designation. It is the sum of jezgro piece lengths longer than the cutoff, divided by the run length.
Can I enter from/to depths and run length at the same time?
Yes. If both are entered, the alat warns you when the run length and the from/to difference do not line up closely enough.
Can I mix jedinice in the jezgro piece list?
Yes. You can mix unit-tagged values. If a value has no jedinica, it is interpreted using the current piece jedinica.
Does it support decimal commas?
Yes. Inputs such as 1,25 are accepted.
Can RQD exceed 100%?
Normally no. If it does, provera for jedinica mistakes or duplicated unos.
Glossary
RQD
The sum of jezgro piece lengths longer than the cutoff, divided by the run length.
Jezgro oporavak
The total recovered jezgro length divided by the run length.
Run length
The total length of the bušotina interval.
Jezgro piece length
The length of each recovered jezgro fragment.
Cutoff length
The minimum piece length counted toward RQD.
Formulas
map[Text:oporavak = recovered_length / run_length × 100 text:oporavak = recovered_length / run_length × 100]map[Text:RQD = sum(piece_length >= cutoff_length) / run_length × 100 text:RQD = sum(piece_length >= cutoff_length) / run_length × 100]map[Text:core_loss = max(run_length - recovered_length, 0) text:core_loss = max(run_length - recovered_length, 0)]map[Text:quality_class = RQD-based classification text:quality_class = RQD-based classification]map[Text:fracture_flag = RQD < threshold or quality class is Poor/Very poor text:fracture_flag = RQD < threshold or quality class is Poor/Very poor]map[Text:loss_flag = oporavak jezgra < threshold text:loss_flag = oporavak jezgra < threshold]
Notes
- This alat is a screening aid, not a replacement for geologic interpretation or mine planning.
- If you enter both from/to depths and run length, always provera jedinica consistency.
- Tune the cutoff length and thresholds to your standard lokacijes.
- If a rezultat exceeds 100%, suspect a jedinica mistake or duplicated unos.
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