Open Pit Mining Closure in Lusatia - minexasia.com
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Open Pit Mining Closure in Lusatia New Landscapes and Lakes Dr. Uta Alisch • Fugro Consult GmbH • Minex Central Asia Forum 2015 (for LMBV by P. Radke, 2007 )
Transcript of Open Pit Mining Closure in Lusatia - minexasia.com
Open Pit Mining Closure in Lusatia New Landscapes and Lakes Dr. Uta Alisch • Fugro Consult GmbH • Minex Central Asia Forum 2015
(for LMBV by P. Radke, 2007 )
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History of Lignite Mining
Lignite mining important for decades and centuries in Lusatia and Central Germany
§ 1382 first discovery of lignite
§ 1890 mechanised lignite mining began
§ 1933 first bucket-wheel excavator was commissioned
Lignite provided >70% of the former GDR’s energy as the only real domestic source
Coal Miners around 1920
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
Open pit mine Skado around 1965 (Archive: LMBV 2002)
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Lignite Mining Districts Germany – Lusatia
Lusatian District
Central German District
Helmstedt District
Rhenish District
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
Post-mining landscape Sedlitz-Skado-Koschen (LMBV 2009)
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Lignite Mining Districts Germany – Lusatia
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Transforming and
Shaping Landscape: • Deforested Woods,
• Deserted Areas,
• Removed Settlements,
• Mining Pits and Dumps /
overburden spoil tips
LMBV
Decommissioning of former
Lignite Mines
Effects of Mining Activities
Relocation of the Emmaus-Church, build in the 13th century Heuersdorf to Borna – Distance about 12 kilometres – costs: EUR 3 million
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Remediation Requirements G
oal o
f reh
abili
tatio
n: C
reat
ion
of a
sus
tai-
nabl
e, s
ave,
and
usa
ble
land
scap
e w
ith s
elf-
adju
stin
g hy
drol
ogic
bal
ance
Creation of stable slopes
Recultivation
Reconstruction of water balance
Disposal of contaminated soil
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Problem of Lignite Mining Remediation – Soil Liquefaction
fine-grained sands between 0.09 – 1.00 mm
(VOGT;WARMBOLD 2002) Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Example of Settlement caused Slumpings
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Solutions against soil Liquefaction
Protection through construction of a hidden dam
mine dump
basement
settlement
settlement
relic lake
endangered area
„hidden“ dam
rehabilitated slope section
(VOGT;WARMBOLD 2002)
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Blasting against Soil Liquefaction
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Vibro-compaction against Soil Liquefaction
Protection through vibrocompaction
(VOGT;WARMBOLD 2002)
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
endangered tilting area
„hidden“ dam
rehabilitated slope section
relic lake
basement
mine dump
final water level
average water level
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Transforming Open Pit Mines into Lakes
Maximum water levels Schwarze Elster river Navigable sea lane Transfer channel for Neiße water Flooding pipes
to the Greifenhain Lake
from Spree river
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Acidification of Lakes caused by Lignite Mining
Transforming Open Pit Mines into Lakes
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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LMBV Bilder (Bild+Text kopieren und auf weiße Seite einfügen)
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
Bekalkungsschiff Bernsteinsee Bekalkung_Spree
Grundwasserreinigungsanlage Rainitza (LMBV,Radke 2011) Grundwasserreinigungsanlage Schwarze Pumpe (Vattenfall 2013)
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Exploration and risk analyses of environmental damages as well as design and supervision of ecological and economical clean-up procedures accompanied by innovative monitoring strategies
Brownfield redevelopment
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Groundwater flow and transport model
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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Lake District in Lusatia
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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LMBV Bilder (Bild+Text kopieren und auf weiße Seite einfügen)
Überleiter entstehen LMBV 2009
Ueberleiter_Rosendorfer-Kanal_Radke_2012-57fc5889
Ueberleiter_Sornoer_Kanal_Radke_2012-6ed405c4
Ueberleiter12_Radke_2012-835f8b2a
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
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New homes and marina at Lake Hainer in Kahnsdorf
Floating houses at Lake Geierswalder
New Recreation Areas
Source: Archive LMBV
Dr. Uta Alisch • Fugro Consult GmbH • Mine closure procedure in the Lusatian Region • Minex Central Asia Forum 2015
Source: Archive LMBV
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