Dieser Web Feature Service (WFS) beinhaltet die Evakuierungsgebiete hinsichtlich sturmflutgefährdeter Bereiche innerhalb des hamburgischen Stadtgebietes. Dabei werden die Evakuierungsgebiete ab 6,50m über NHN sowie ab 7,30m über NHN angezeigt. Zur genaueren Beschreibung der Daten und Datenverantwortung nutzen Sie bitte den Verweis zur Datensatzbeschreibung.
In diesem Web Map Service (WMS) werden die Evakuierungsgebiete hinsichtlich sturmflutgefährdeter Bereiche innerhalb des hamburgischen Stadtgebietes dargestellt. Dabei werden die Evakuierungsgebiete ab 6,50m über NHN sowie ab 7,30m über NHN angezeigt. Zur genaueren Beschreibung der Daten und Datenverantwortung nutzen Sie bitte den Verweis zur Datensatzbeschreibung.
The general objective of the Danube Delta project was to improve the cooperation between the national authorities and industrial operators of the Republic of Moldova, Romania and Ukraine in the Danube Delta region through enhancing, and where possible harmonizing, the mechanisms and approaches for efficient and effective hazard and crisis management. The project promoted cooperation between the relevant authorities in the project countries (mostly authorities responsible for environmental protection, civil protection, transport, regional and local authorities, etc.) and between authorities and industry, in particular operators of oil terminals. The Danube Delta project significantly enhanced the transboundary cooperation between the participating countries at the expert level, as well as the cooperation and mutual trust and understanding between the national competent authorities and the industry. Veröffentlicht in Dokumentationen | 03/2016.
Environmental authorities globally are challenged with the complexity of problems associated with contaminated sites. For protecting human beings and the quality of the environmental media air, water and soil, the prevention and elimination of hazards as well as impact mitigation are crucial. This manual presents information and solution-oriented procedures for all stakeholders with a focus on identification, investigation, assessment and remediation of contaminated sites at typical facilities of the oil and gas industry, such as exploration sites, tank farms and refineries. Its application shall contribute to improving the technical and administrative management and the remediation of contaminated sites. Veröffentlicht in Broschüren, Leitfäden und Handbücher.
Environmental authorities globally are challenged with the complexity of problems associated with contaminated sites. For protecting human beings and the quality of the environmental media air, water and soil, the prevention and elimination of hazards as well as impact mitigation are crucial. This manual presents information and solution-oriented procedures for all stakeholders with a focus on identification, investigation, assessment and remediation of contaminated sites at typical facilities of the oil and gas industry, such as exploration sites, tank farms and refineries. Its application shall contribute to improving the technical and administrative management and the remediation of contaminated sites. Quelle: www.umweltbundesamt.de
The members of the mine surveying team play a vital role in the comprehensive monitoring of stability in the Morsleben repository. Their main task is the regular measurement and documentation of movements in a mine in order to record changes in the mine cavities. The technical term for this is geomechanical monitoring. A traditional practice with modern applications The age-old practice of mine surveying continues to play a vital role in modern mining. Traditional mine surveying was the origin of modern geodetic surveying. The occupation of the mine surveyor existed as far back as the Middle Ages. Like their modern counterparts, the mine surveyors of the time were also tasked with surveying open-cast and underground mines, defining boundaries and assigning mining districts to different mining operators. They also drew up the first mine plans. Then, as now, the mine surveyor always played an objective role. To ensure their objectivity, section 64(2) of the Federal Mining Act (BBergG) states that: “Mine surveyors may conduct their professional work independently. The mine surveyor is authorized to certify documents with the presumption of legal force within his geographical area of responsibility.” In other words, a client must not influence a mine surveyor in the carrying out of their profession. The mine surveyor is always answerable to the relevant mining inspectorate. From site exploration, planning and operation to renovation and the post-mining phase, mine surveying is involved in all stages of mining – and is in greater demand than ever. Mine surveyors record and process a large volume of geodata and use this data to create digital 3D models, for example. These models also reflect the future of mining, because they allow rock to be dealt with in a particularly targeted manner. They also serve as a planning aid when it comes to the environmentally friendly and resource-efficient decommissioning of the Morsleben repository. One specific example is the measure for the “prevention of mining hazards in the central part” of the Morsleben repository. Geomechanical monitoring in Morsleben is to thank for the fact that a damage process in the central part of the Bartensleben pit was detected at an early stage and halted. This process was caused by the large total volume of open drifts and chambers in the mine workings and the long service life of the large mining chambers. High-quality rock salt was mined in the Bartensleben pit until 1969, leaving behind mining chambers with cavity volumes of up to 140,000 cubic metres. As part of the project for the “prevention of mining hazards in the central part” , extensive stabilisation work was carried out from 2003 to 2011. Miners backfilled 27 mining chambers in the central part with salt concrete, and the entire process – from the planning to the subsequent long-term monitoring – was accompanied by the mine surveyors. In summary, mine surveying is involved in every aspect of mining and allows deposits to be exploited in a safe and sustainable manner. The work produces an extensive volume of geodata relating to the planning, management and documentation of mining operations. The data is also used by the mine surveyors to derive a modern mine plan of the Morsleben repository. This plan is provided to the relevant mining office, in its capacity as the supervisory authority, twice a year. Main topic: stability Short information about the Morsleben repository
On 30 November 2001 at 12:03 p.m., the Morsleben repository shook the local area. What had happened? In order to safely decommission a warning system based on explosives, it was necessary to carry out a final detonation of 10 kilograms of explosives. In the past, the warning system served to warn the mine’s workforce in the event of an emergency. During the detonation, around 4,000 tonnes of salt fell from the ceiling – known as the roof in mining terminology – onto the floor of an old, sealed-off mining chamber. The tremors could even be felt in people’s houses in Morsleben. For experts, the incident came as no surprise. The geomechanical weaknesses in the central part of the pit were well-known and were subject to constant monitoring. Experts were already discussing plans for stabilisation. The mining authority responsible issued an order to act quickly to stabilise the central part of the repository. This resulted in the measure referred to as the “prevention of mining hazards in the central part”, which had a transformative impact on operations over subsequent years. Salt concrete and pumps In mining, there are various ways of backfilling cavities for the purpose of stabilisation. To enable rapid implementation of the measure and therefore the achievement of a load-bearing effect from an early stage, the experts decided to introduce a pumpable, self-curing construction material. The special concrete introduced consisted of rock salt, cement, stone coal filter ash, lime dust, a small amount of sand, and water. As the main additive is rock salt, this material is also known as “salt concrete”. In order to introduce the salt concrete into the Bartensleben pit in the necessary quantities, a large infrastructure programme was needed in order to develop the first to third levels. Until that point, only the fourth level of the pit had well-developed infrastructure: it was from this level that the salts were brought to the surface until 1969, and the level was subsequently used for final disposal. In total, over 1,000 metres of existing mine galleries were expanded from a small cross section that was only passable on foot to a size that was suitable for vehicles. It was necessary to completely recreate 1,250 metres of galleries. Two of these galleries – in this case, slightly inclined underground passages – connect several levels with one another so that it is now possible to travel across all levels by vehicle. Another key aspect of the infrastructure programme was the plant technology needed for pumping operations. Pumps, pipework and fittings were installed both above and below ground. The corresponding mining chambers were prepared before backfilling began. All accesses were to be tightly sealed in order to prevent the uncontrolled spread of salt concrete within the pit. The preparatory work concluded with the drilling of targeted backfilling boreholes, which was a challenging undertaking for the mine surveyors and miners alike. These boreholes had to be positioned so that at least 70% of the ceiling surface of the mining chambers had a connection to the salt concrete. This was necessary in order to achieve the greatest possible stabilisation. In September 2003, less than two years after the collapse of 4,000 tonnes of rock in the central part, the miners began backfilling the first mining chamber, excavation 1a on the third level. Half a year later, the chamber had been filled with 26,165 cubic metres of salt concrete. This was followed by a further 26 mining chambers by February 2011. In total, around 935,000 cubic metres of salt concrete were introduced in this way – compared with the previously calculated volume of 935,119 cubic metres for the 27 mining chambers. The degree of backfilling is therefore over 99%. The work was an enormous undertaking in engineering and mining terms, and allowed considerable experience to be gained in the handling of salt concrete as a construction material. At the same time, this experience provides technical proof that the planned backfilling of cavities is feasible as part of decommissioning (see Unwanted change: stabilisation measures for decommissioning ). The accompanying operational geotechnical monitoring has demonstrated that the aim of stabilising the central part of the Bartensleben pit has been achieved and that the Morsleben repository can be operated and decommissioned safely. Decommissioning of the Morsleben repository Short information about the Morsleben repository
In deep geological storage, the host rock – that is, the rock that surrounds the radioactive waste – forms the most important barrier for the protection of humans and the environment from radioactive waste. Mining can potentially weaken this barrier if, for example, it reduces the leakage integrity of the rock. In this case, humans must intervene with technical measures. The Morsleben repository for low- and intermediate-level radioactive waste is a former potash and rock-salt mine. It was selected as a repository for low- and intermediate-level radioactive waste in 1970 in the GDR. Salt was mined at Morsleben from 1898 to 1969. As a result of these excavations, measures were subsequently needed to ensure the long-term stability of the repository mine. To this day, the mine is still classified as stable, meaning that it can be safely operated until decommissioning and that the safe final disposal of waste is possible in the long term. There are two main reasons for this. Reason 1: The stresses in the salt rock are low Due to the weight of the overlying masses of earth above the salt rock, the rock is under constant pressure – or, to use the technical term, stress. In the undisturbed salt rock, there is therefore a predominant stress state that is equal on all sides – this is known as the primary stress state. The level of stress increases with depth as the weight of the overlying rock layers also increases. Excavation of a mine cavity alters this stress state. What exactly this change looks like and how widespread its effects are depends on the size and shape of the mine cavity and on whether further workings have already been developed in the vicinity. The Morsleben repository is monitored for changes in stress states. In conjunction with other rock-mechanical, mine-surveying and geophysical monitoring measurements, a series of measurements taken at different depths and locations provide data for the creation and verification of geomechanical models. The results show that the stresses on the mine excavations are generally low, resulting in displacements of around one millimetre per year. Areas with greater stress have been stabilised by backfilling measures (see Prevention of mining hazards in the central part ). Overall, the stress state in large parts of the mine is very low – partly due to the fact that the generally stable salt is supported by a “skeleton of anhydrite rock”. Reason 2: Successful stabilisation of the mine cavities The Morsleben repository is divided into the two interconnected mining fields of Bartensleben and Marie. Whereas the Marie mining field was primarily used for the extraction of potash salt, the miners in the Bartensleben field focussed on the extraction of rock salt. Here, the number and size of the mining chambers were significantly larger with respect to the total volume of the mining field, as the rock salt deposits were more substantial than the potash salt deposits in the Marie pit. In total, cavities with a volume of around 8.7 million cubic metres were therefore created. Today, there are still around 5 million cubic metres of cavities. The cavity volume has been reduced by introducing backfill material and by backfilling mining chambers with salt concrete. On 30 November 2001, rock broke away from the roof in the central part of the Bartensleben mining field at a depth of some 420 metres. This saw the collapse of some 4,000 tonnes of salt rock and led to the implementation of a measure referred to as the “prevention of mining hazards in the central part”. From 2003 to 2011, miners backfilled a total of 27 mining chambers in the central part of the Bartensleben mining field with around 935,000 cubic metres of salt concrete. This backfilling was intended to stabilise the mine cavities, and the results of the accompanying geotechnical operational monitoring confirm that this objective was achieved. The successful completion of the prevention of mining hazards in the central part ensures that the stability of the mine will be maintained until the planned decommissioning work is completed. Following decommissioning, the Morsleben repository will be almost completely backfilled with special concrete so that the stability of the host rock is ensured even for long periods of time. Main topic: stability History of the Morsleben respository
Das Europäische Waldbrandinformationssystem dient dazu, auf die potenzielle Gefahr eines Waldbrandes hinzuweisen. Hierfür werden metereologische Kennwerte, die auf die Gefahr eines Waldbrandes hinweisen für bis zu 6 Tage im Vorhinein benannt. Das Fachinformationssystem (FIS) wird täglich mit einem neuen Satellitenbild ergänzt, was bis zu 7 Tagen alt sein kann. Außerdem werden Karten der zuletzt bekannten Feuer täglich ergänzt. Auf der Webseite von EFFIS sind zwei Viewer zugänglich (normal und advanced). In beiden wird die jeweilige Gefahrenklasse dargestellt, der eine Region in Europa unterliegt.
The general objective of the Danube Delta project was to improve the cooperation between the national authorities and industrial operators of the Republic of Moldova, Romania and Ukraine in the Danube Delta region through enhancing, and where possible harmonizing, the mechanisms and approaches for efficient and effective hazard and crisis management. The project promoted cooperation between the relevant authorities in the project countries (mostly authorities responsible for environmental protection, civil protection, transport, regional and local authorities, etc.) and between authorities and industry, in particular operators of oil terminals. The Danube Delta project significantly enhanced the transboundary cooperation between the participating countries at the expert level, as well as the cooperation and mutual trust and understanding between the national competent authorities and the industry.Quelle: https://www.umweltbundesamt.de/
| Origin | Count |
|---|---|
| Bund | 332 |
| Land | 11 |
| Type | Count |
|---|---|
| Förderprogramm | 316 |
| Gesetzestext | 1 |
| Text | 16 |
| unbekannt | 7 |
| License | Count |
|---|---|
| geschlossen | 19 |
| offen | 320 |
| unbekannt | 1 |
| Language | Count |
|---|---|
| Deutsch | 331 |
| Englisch | 107 |
| Resource type | Count |
|---|---|
| Dokument | 4 |
| Keine | 204 |
| Webdienst | 2 |
| Webseite | 133 |
| Topic | Count |
|---|---|
| Boden | 274 |
| Lebewesen & Lebensräume | 298 |
| Luft | 268 |
| Mensch & Umwelt | 340 |
| Wasser | 267 |
| Weitere | 340 |