Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Stabilization of bank slopes that are prone to liquefaction in ecologically sensitive areas
A consequence of lignite stripping in the Lusatia mining district (East Germany) is the backfilling of dumps that mainly consist of low-compacted fine and medium-grained sands. When the ground-water table, which had been lowered while stripping the coal, is rising again, these dumps might be affected by a settlement flow due to the liquefaction of soils. Common methods for stabilization as, for instance, blasting or vibrator-jetting deep compaction, are not very useful in ecologically sensitive areas, where dumps have been afforested and embankment areas of residual lakes have developed into highly valuable biotopes. A new so-called air-impulse method in combination with directional horizontal drilling has been developed, which does not have a considerably negative impact on the vegetation during compaction. The experience gained during the first employment of this method at the lake 'Katja', a residual lake of lignite stripping, is presented in this paper.
Stabilization of bank slopes that are prone to liquefaction in ecologically sensitive areas
A consequence of lignite stripping in the Lusatia mining district (East Germany) is the backfilling of dumps that mainly consist of low-compacted fine and medium-grained sands. When the ground-water table, which had been lowered while stripping the coal, is rising again, these dumps might be affected by a settlement flow due to the liquefaction of soils. Common methods for stabilization as, for instance, blasting or vibrator-jetting deep compaction, are not very useful in ecologically sensitive areas, where dumps have been afforested and embankment areas of residual lakes have developed into highly valuable biotopes. A new so-called air-impulse method in combination with directional horizontal drilling has been developed, which does not have a considerably negative impact on the vegetation during compaction. The experience gained during the first employment of this method at the lake 'Katja', a residual lake of lignite stripping, is presented in this paper.
Stabilization of bank slopes that are prone to liquefaction in ecologically sensitive areas
Nestler, P. (Autor:in) / Stoll, R.D. (Autor:in)
Waste Management ; 21 ; 153-159
2001
7 Seiten, 5 Quellen
Aufsatz (Zeitschrift)
Englisch
Braunkohle , Verflüssigen , Ökologie , Sand , Umweltschutz
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