International Commission on Large Dams (ICOLD) - Tailings Dams, Risk of dangerous occurrences
Подождите немного. Документ загружается.
140
Incident Description:
Some 1,000,000 tons of tailings liquefied and
flowed within 15 minutes into underground mine
workings where mining was in progress beneath
the impoundment, resulting in death of 89 miners.
It is believed that voids in the rock above the
workings propagated upward to the tailings due to
unequal extraction of ore or differential
settlement of the caving rock. The tailings
deposit was stabilized by dewatering and the
mining method was changed.
Source: Brawner, 1979; Sandy, et. al., 1976;
Lucia, 1981
Incident No.: 5
Dam/Mine Name: Atlas Consolidated
Mine Location: Philippines
Ore/Tailings Type:
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: Incident Type: 1A Cause: MS
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
Coarse, saturated tailings deposited in an
abandoned open pit liquefied and flowed into
underground mine workings beneath the
impoundment where mining was in progress. It is
believed that voids in the rock above the
workings propagated upward to the impoundment
due to unequal extraction of ore or differential
settlement of the caving rock.
Source: Brawner, 1979
DAM TYPE: NOT REPORTED
INCIDENT TYPE: 1A CAUSE: ER
Incident No.: 192
Dam/Mine Name: Pico de Sao Luis
Mine Location: Minas Gerais, Brazil
Ore/Tailings Type:
Dam Height (m): 20
Dam Type: Fill Material: T
Impoundment Volume (cu. m):
Incident Information:
Date: 10-02-1986
Incident Type: lA Cause: ER
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
Water flowing over spillway eroded dam toe on
soft clay foundation, causing failure of
downstream slope. Tailings released.
Source: ICOLD Tailings Committee.
DAM TYPE: NOT REPORTED
INCIDENT TYPE: 1A CAUSE: U
Incident No.: 182
Dam/Mine Name: Williamsport Washer
Mine Location: Maury County, TN, USA
Ore/Tailings Type: phosphate
Dam Height (m): 21
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 1970 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
No details provided.
Source: MHSA
Incident No.: 1
Dam/Mine Name: Agrico Chemical
Mine Location: Payne Creek, FL, USA
Ore/Tailings Type: phosphate
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 1968 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
Dam breach resulted in pollution of a nearby
creek and the Peace River. No further details are
available.
Source: Anecdotal
Incident No.: 83
Dam/Mine Name: Mobil Chemical
Mine Location: Ft. Meade, FL, USA
Ore/Tailings Type: phosphate
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 1967 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m): 250,000
Tailings Travel Distance (m):
Incident Description:
Dam breach and release of phosphatic clay slimes
resulted in pollution of the Peace River. No
further details are available.
Source: Anecdotal
Incident No.: 33
Dam/Mine Name: Climax
Mine Location: Grand Junction, CO, USA
Ore/Tailings Type: uranium
Dam Height (m):
Dam Type: Dam Fill Material:
141
Impoundment Volume (cu. m):
Incident Information:
Date: 07-02-1967 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m): 12,000
Tailings Travel Distance (m):
Incident Description:
Failure due to unreported causes released 58,000
gallons of effluent into an adjacent river. There
was no indication that dissolved radium
concentrations in the river exceeded regulatory
standards.
Source: US AEC, 1974
Incident No.: 4
Dam/Mine Name: American Cyanamid
Mine Location: Lithia, FL, USA
Ore/Tailings Type: phosphate
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 1965 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
Release of impounded phosphatic clay slimes
caused pollution of an adjacent creek and the
Alafia River. No further details are available.
Source: Anecdotal
Incident No.: 3
Dam/Mine Name: American Cyanamid
Mine Location: Brewster, FL, USA
Ore/Tailings Type: gypsum
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 1962 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
Dam breach caused release of 10 million gallons
of acid water and pollution of the Alafia River.
No further details are available.
Source: Anecdotal
Incident No.: 80
Dam/Mine Name: Mines Development
Mine Location: Edgemont, SD, USA
Ore/Tailings Type: uranium
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 06-11-1962 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m): 100
Tailings Travel Distance (m):
Incident Description:
The dam failed from unreported causes. Tailings
released reached a creek and some were carried
25 miles to a reservoir downstream.
Source: US AEC, 1974
Incident No.: 171
Dam/Mine Name: Union Carbide
Mine Location: Maybell, CO, USA
Ore/Tailings Type:
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 12-06-1961 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m):
280Tailings Travel Distance (m):
Incident Description:
The dam failed from unreported causes. No
damage was reported, and effluent released did
not reach any flowing stream.
Source: U.S. AEC, 1974
Incident No.: 20
Dam/Mine Name: Captains Flat Dump 3
Mine Location: Australia
Ore/Tailings Type: copper
Dam Height (m):
Dam Type: Dam Fill Material: T
Impoundment Volume (cu. m):
Incident Information:
Date: 1942 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m): 40,000
Tailings Travel Distance (m):
Incident Description:
No details of the failure are available, except that
the tailings liquefied and the resulting tailings
flowslide reached a nearby river.
Source: Ash, 1976
Incident No.: 136
Dam/Mine Name: Unidentified
Mine Location: South Africa
Ore/Tailings Type: gold
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 1917 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
Mention is made of a failed tailings dam. No
further details are provided.
Source: White, 1917
Incident No.: 142
Dam/Mine Name: Unidentified
142
Mine Location: United Kingdom
Ore/Tailings Type:
Dam Height (m): 12
Dam Type: Dam Fill Material: R
Impoundment Volume (cu. m):
Incident Information:
Date: Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
An old tailings dam constructed within a quarry
breached and was subsequently repaired. The
cause is not reported.
Source: Little and Beavan, 1976
Incident No.: 2
Dam/Mine Name: Alcoa
Mine Location: Point Comfort, TX, USA
Ore/Tailings Type: bauxite
Dam Height (m): 19
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m): 4,500,000
Incident Information:
Date: 10-01-1964 Incident Type: 1A Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
Cause of the failure is not reported. Released
material was contained in a downstream
impoundment.
Source: MHSA
DAM TYPE: NOT REPORTED
INCIDENT TYPE: 1B CAUSE: OT
Incident No.: 76
Dam/Mine Name: Marga
Mine Location: Chile
Ore/Tailings Type: copper
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 1985 Incident Type: 1B Cause: OT
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
The cross-valley abandoned dam had a decant
structure but no abandonment spillway.
Overtopping failure occurred due to insufficient
decant capacity for routing streamflows through
the impoundment.
Source: Troncoso, 1990
Incident No.: 175
Dam/Mine Name: Vallenar 1 and 2
Mine Location: Chile
Ore/Tailings Type: copper
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 1983 Incident Type: 1B Cause: OT
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
The two abandoned dams contained cross-valley
impoundments in series, and incorporated only
decant structures with no abandonment spillways.
Overtopping caused failure of the upper dam and
cascade failure of the lower dam.
Source: Troncoso, 1990
Incident No.: 151
Dam/Mine Name: Unidentified
Mine Location: IN, USA
Ore/Tailings Type: coal
Dam Height (m): Dam Type:
Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: Incident Type: 1B Cause: OT
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
An abandoned coal slurry impoundment was
breached by overtopping during heavy rains. No
other details are available.
Source: Wobber, et al, 1974
DAM TYPE: NOT REPORTED
INCIDENT TYPE: 1B CAUSE: U
Incident No.: 39
Dam/Mine Name: Dixie Mine
Mine Location: Clear Creek County, CO, USA
Ore/Tailings Type: gold
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 04-01-1981 Incident Type: 1B Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
No details provided.
Source: MHSA
Incident No.: 65
Dam/Mine Name: Keystone Mine
Mine Location: Creste Butte, CO, USA
Ore/Tailings Type: molybdenum
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
143
Date: 05-01-1975 Incident Type: 1B Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
No details provided.
Source: MHSA
Incident No.: 50
Dam/Mine Name: Golden Gilpin Mine
Mine Location: Blackhawk, CO, USA
Ore/Tailings Type: gold
Dam Height (m): 12
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 11-01-1974 Incident Type: 1B Cause: U
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
No details provided.
Source: MHSA
DAMTYPE: NOT REPORTED
INCIDENT TYPE: 2A CAUSE: SI
Incident No.: 160
Dam/Mine Name: Unidentified
Mine Location: Eastern US, USA
Ore/Tailings Type: coal
Dam Height (m): 150
Dam Type: Dam Fill Material: MW
Impoundment Volume (cu. m):
Incident Information:
Date: Incident Type: 2A Cause: SI
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
An embankment of coal refuse constructed with
uncompacted, train-dumped fill retained
impounded coal tailings and water. Downstream
slope movements of 20 m/yr, accompanied by a
high phreatic surface and large quantities of
seepage, resulted in severe cracking and
deformation of the embankment slope.
Source: Wahler and Schlick, 1976
DAMTYPE: NOT REPORTED
INCIDENT TYPE: 2A CAUSE: OT
Incident No.: 67
Dam/Mine Name: Kyanite Mining
Mine Location: Prince Edward Co., VA, USA
Ore/Tailings Type: kyanite
Dam Height (m): 11
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m): 430,000
Incident Information:
Date: 1980 Incident Type: 2A Cause: OT
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
The dam was overtopped, but no breach occurred
and tailings were not released. The dam was
placed back in service with minor repairs.
Source: Virginia Dept. Mines, Minerals and
Energy, Div. Mined Land Reclamation
Incident No.: 174
Dam/Mine Name: Utah Construction
Mine Location: Riverton, WY, USA
Ore/Tailings Type: uranium
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: 06-16-1963
Incident Type: 2A Cause: OT
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
The dam was intentionally breached and a 2-foot
depth of effluent was released to prevent
uncontrolled release of the impoundment contents
during heavy rain.
Source: US AEC, 1974
DAM TYPE: NOT REPORTED
INCIDENT TYPE: 3 CAUSE: NR
Incident No.: 8
Dam/Mine Name: Bancroft
Mine Location: Ontario, Canada
Ore/Tailings Type: uranium
Dam Height (m):
Dam Type: Dam Fill Material:
Impoundment Volume (cu. m):
Incident Information:
Date: Incident Type: 3 Cause:
Quantity of Tailings Released (cu. m):
Tailings Travel Distance (m):
Incident Description:
A grout curtain installed in alluvial deposits was
used to control seepage containing radium-226
from an existing, reactivated tailings dam. It was
constructed by injecting a mixture of clay, water,
cement, bentonite and occasionally calcium
chloride through slotted pipes installed in small
diameter boreholes drilled through the alluvium
and into bedrock. Pump tests conducted after
completion of the grout curtain showed that a thin
zone along the bedrock surface remained
ungrouted and that seepage through only the
upper part of the alluvium was retarded. It was
observed that the total effect of the curtain in
reducing seepage was minimal. Yet the content
of the dissolved radium-226 in the ground water
144
was greatly lowered in passing through and
beneath the grout curtain. The decrease in
contaminant concentrations was attributed to ion
exchange between the effluent seepage and
chemicals in the grout curtain.
Source: Dodds, 1979
ISSN 0534-8293