Details:

Personal Author:
Soderberg, R. L. ; Busch, R. A. (Richard A.)
Soderberg, R. L. ; Busch, R. A. (Richard A.) Less -
Corporate Authors:
United States. Bureau of Mines.
Description:
"Large open stopes mined by vertical crater retreat or sublevel stoping are sometimes backfilled with uncemented sand tailings to support the stope walls and alleviate rock bursts. The failure of bulkheads in two different mines prompted a research project at the Bureau of Mines to prevent a recurrence of these failures. A series of laboratory tests with gravel drains and sand filters was conducted to measure the bulkhead pressures when adequate drainage was maintained. Results showed that bulkhead pressure was reduced to near zero while drains were in operation, as compared with full hydrostatic pressure when drains were blocked or drainage was restricted. A relatively simple, light, free-draining bulkhead was shown to be adequate." - NIOSHTIC-2

NIOSHTIC no. 10004546


Subject:
[+]
Mine Drainage.
Mine Filling.
Rock Bursts.
Stoping (Mining) -- Safety Measures.

Series:
Report of investigations (United States. Bureau of Mines) ; 8959
Document Type:
Report
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:4eecffc82bd839c83aad048a7cc3c565f720ccb26903225121aa8c7f0cff8f35
File Type:

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• No Additional Files

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