ASTM D4436-13e1
Standard Test Method for Rock Bolt Long-Term Load Retention Test (Withdrawn 2022)
Standard Test Method for Rock Bolt Long-Term Load Retention Test (Withdrawn 2022)
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Дата публикации:
- 14 января 2022 г.
- SKU:
- ASTM D4436-13e1
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Abstract
Significance and Use 5.1 Rock bolts are used for support in a variety of mining and civil engineering situations.3 After a bolt is installed, the load generally decreases over time due to deterioration of the borehole wall, creep, and othe...
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