Pub Date : 2018-10-01DOI: 10.5604/01.3001.0012.5047
Izabela Jamorska, A. Krawiec, M. Marciniak
The paper presents the results of a preliminary study of geology and hydrogeological conditions of a Grudziądz groundwater intake. The focus of the study was to develop a conceptual model that will be used in further investigation to create a hydrogeological model. In the intake area two multi-aquifer formations have been distinguished: Quaternary and Paleocene-Cretaceous. The Quartenary multi-aquifer formation, which consists of two aquifers separated by poorly permeable rocks, is primary utility. Groundwater in the Paleocene-Cretaceous aquifer has an elevated mineral content, which makes it not usable. The intake is located near Grudziądz and areas of intense farming, which leads to a hazard of anthropopressure, and may have a negative impact on the groundwater quality and quantity. In-office work conducted for the preparation of article included gathering and description of archival data from over 120 years of intake existence. Data from 53 hydrogeological boreholes have been analyzed. In 2017, field work was also conducted, including several measurements of water table in wells and piezometers of the intake. Water samples have also been collected for chemical analyses. An efficiency assessment of some observation wells has been made, establishing their hydrogeological parameters using the PARAMEX method.
{"title":"STUDIES OF GEOLOGICAL CONDITIONS AND THE ASSESSMENT OF AQUIFER PROPERTIES FOR THE MODEL STUDIES OF GROUNDWATER FLOW IN THE GRUDZIĄDZ AREA","authors":"Izabela Jamorska, A. Krawiec, M. Marciniak","doi":"10.5604/01.3001.0012.5047","DOIUrl":"https://doi.org/10.5604/01.3001.0012.5047","url":null,"abstract":"The paper presents the results of a preliminary study of geology and hydrogeological conditions of a Grudziądz groundwater intake. The focus of the study was to develop a conceptual model that will be used in further investigation to create a hydrogeological model. In the intake area two multi-aquifer formations have been distinguished: Quaternary and Paleocene-Cretaceous. The Quartenary multi-aquifer formation, which consists of two aquifers separated by poorly permeable rocks, is primary utility. Groundwater in the Paleocene-Cretaceous aquifer has an elevated mineral content, which makes it not usable. The intake is located near Grudziądz and areas of intense farming, which leads to a hazard of anthropopressure, and may have a negative impact on the groundwater quality and quantity. In-office work conducted for the preparation of article included gathering and description of archival data from over 120 years of intake existence. Data from 53 hydrogeological boreholes have been analyzed. In 2017, field work was also conducted, including several measurements \u0000of water table in wells and piezometers of the intake. Water samples have also been collected for chemical analyses. An efficiency assessment of some observation wells has been made, establishing their hydrogeological parameters using the PARAMEX method.\u0000\u0000","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129411203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.5604/01.3001.0012.5051
M. Matusiak, S. Dąbrowski, Witold Rynarzewski
We analyzed 27 km2 of the Prosna valley aquifer near Kalisz. The region was previously a subject of four model-based studies of local and regional range. Furthermore, additional modelling researches were conducted that aimed at evaluation of Upper Jurassic aquifer exploitation, which seems to be a separate groundwater circulation system. The models used in the analyses differed in terms of grid size (100, 125, 250 and 500 m), groundwater circulation scheme (two-, three- or seven-layered), and the software used (Hydrylib or Modflow). The results of groundwater steady-state flow indicate the essential influence of the groundwater circulation scheme and the mesh size on groundwater flow balance. It also emphasizes the importance of deep aquifers in the detailed model-based study in the case of groundwater intakes located within the river valleys of regional drainage range.
{"title":"COMPARISON OF LOCAL AND REGIONAL GROUNDWATER FLOW MODELING APPROACHES OF THE MULTILAYER GROUNDWATER SYSTEM IN THE VICINITY OF THE LIS GROUNDWATER INTAKE","authors":"M. Matusiak, S. Dąbrowski, Witold Rynarzewski","doi":"10.5604/01.3001.0012.5051","DOIUrl":"https://doi.org/10.5604/01.3001.0012.5051","url":null,"abstract":"We analyzed 27 km2 of the Prosna valley aquifer near Kalisz. The region was previously a subject of four model-based studies of local and regional range. Furthermore, additional modelling researches were conducted that aimed at evaluation of Upper Jurassic aquifer exploitation, which seems to be a separate groundwater circulation system. The models used in the analyses differed in terms of grid size (100, 125, 250 and 500 m), groundwater circulation scheme (two-, three- or seven-layered), and the software used (Hydrylib or Modflow). The results of groundwater steady-state flow indicate the essential influence of the groundwater circulation scheme and the mesh size on groundwater flow balance. It also emphasizes the importance of deep aquifers in the detailed model-based study in the case of groundwater intakes located within the river valleys of regional drainage range.\u0000\u0000","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130768001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.5604/01.3001.0012.5052
Andrzej Rodzoch, Dominik Miaz, Grzegorz Jeleniewicz
A hydrogeologist often faces a serious difficulty in estimation of available groundwater resources. In contrast to renewable water resources, which are valuable for a study area and estimated with greater or lower precision depending on the quality of available data, disposable groundwater resources cannot be treated as a natural and relatively constant characteristic of the management area, because their size and spatial distribution depend on criteria assumed to set an optimal way for managing water supplies. Since those criteria can be defined in various ways and their significance can vary as well, spatial distribution of groundwater resources and their size can theoretically have infinite number of equally correct solutions. They can be only treated as optimal for a strictly specified set of criteria and therefore can be modified according to different needs and assumed priorities. Interpreted this way, they can only be calculated by the use of model simulation, because only a mathematical model is an effective tool for making such multi-criteria analyses. The paper presents an approach for setting criteria that limit the input and output control data, applied by HYDREKO in the process of spatial distribution of disposable groundwater resources. An example of use of this method is presented for the management area P-XVIII Dolna Warta (Rodzoch et al., 2017).
水文地质学家在估计可用地下水资源时经常面临严重的困难。与可再生水资源不同，可再生水资源对研究区域很有价值，并根据现有数据的质量进行或高或低的精度估计，而一次性地下水资源不能被视为管理区域的自然和相对恒定的特征，因为它们的大小和空间分布取决于为管理供水设定最佳方式的假设标准。由于这些标准可以以各种方式定义，其意义也可以不同，因此地下水资源的空间分布及其规模理论上可以有无数同样正确的解决方案。它们只能被视为一组严格规定的标准的最佳选择，因此可以根据不同的需要和假定的优先事项加以修改。这样解释，它们只能通过使用模型模拟来计算，因为只有数学模型才是进行这种多准则分析的有效工具。本文提出了一种设定限制输入和输出控制数据的标准的方法，并由HYDREKO应用于一次性地下水资源的空间分布过程。在管理区域P-XVIII Dolna Warta (Rodzoch et al.， 2017)中提供了使用该方法的示例。
{"title":"ESTABLISHING OF THE SPATIAL DISTRIBUTION OF DISPOSABLE GROUNDWATER RESOURCES BY MULTI-CRITERIA ANALYSIS METHOD","authors":"Andrzej Rodzoch, Dominik Miaz, Grzegorz Jeleniewicz","doi":"10.5604/01.3001.0012.5052","DOIUrl":"https://doi.org/10.5604/01.3001.0012.5052","url":null,"abstract":"A hydrogeologist often faces a serious difficulty in estimation of available groundwater resources. In contrast to renewable water resources, which are valuable for a study area and estimated with greater or lower precision depending on the quality of available data, disposable groundwater resources cannot be treated as a natural and relatively constant characteristic of the management area, because their size and spatial distribution depend on criteria assumed to set an optimal way for managing water supplies. Since those criteria can be defined in various ways and their significance can vary as well, spatial distribution of groundwater resources and their size can theoretically have infinite number of equally correct solutions. They can be only treated as optimal for a strictly specified set of criteria and therefore can be modified according to different needs and assumed priorities. Interpreted this way, they can only be calculated by the use of model simulation, because only a mathematical model is an effective tool for making such multi-criteria analyses. The paper presents an approach for setting criteria that limit the input and output control data, applied by HYDREKO in the process of spatial distribution of disposable groundwater resources. \u0000An example of use of this method is presented for the management area P-XVIII Dolna Warta (Rodzoch et al., 2017).\u0000\u0000","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131830707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.5604/01.3001.0012.5057
Robert Zdechlik, M. Partyka
The filtration of groundwater is a complicated process, which is determined by natural environmental factors (hydrogeological conditions) and anthropogenic impacts. Reliable predictions of the impact of the established extortions on the groundwater environment require the use of an appropriate research method that will allow for a precise representation of groundwater circulation. Such methods include numerical modelling of filtration processes, using a mathematical description of groundwater flow, based on assumed parameters and boundary conditions. For groundwater flow modelling, software based on the finite differences method FDM, using Modflow simulators, is most commonly used. Due to the numerous advantages, mainly in terms of greater precision in the representation of the complex geometry of the aquifers and objects affecting the water circulation, the alternative FEM finite elements method is becoming increasingly important. The article presents characteristic features of modelling using both methods. Based on the established imaginary research site, representing typical valley hydrogeological conditions, the paper presents the methodology of model implementation and numerical calculations of water flow using FDM and FEM methods, each in two variants of grid density. Obtained results are presented, with an attempt to compare the advantages and disadvantages of both methods.
{"title":"GROUNDWATER FLOW MODELlING USING the FINITE DIFFERENCES METHOD AND the FINITE ELEMENTS METHOD – COMPARATIVE MODEL STUDIES","authors":"Robert Zdechlik, M. Partyka","doi":"10.5604/01.3001.0012.5057","DOIUrl":"https://doi.org/10.5604/01.3001.0012.5057","url":null,"abstract":"The filtration of groundwater is a complicated process, which is determined by natural environmental factors (hydrogeological conditions) and anthropogenic impacts. Reliable predictions of the impact of the established extortions on the groundwater environment require the use of an appropriate research method that will allow for a precise representation of groundwater circulation. Such methods include numerical modelling of filtration processes, using a mathematical description of groundwater flow, based on assumed parameters and boundary conditions. For groundwater flow modelling, software based on the finite differences method FDM, using Modflow simulators, is most commonly used. Due to the numerous advantages, mainly in terms of greater precision in the representation of the complex geometry of the aquifers and objects affecting the water circulation, the alternative FEM finite elements method is becoming increasingly important. The article presents characteristic features of modelling using both methods. Based on the established imaginary research site, representing typical valley hydrogeological conditions, the paper presents the methodology of model implementation and numerical calculations of water flow using FDM and FEM methods, each in two variants of grid density. Obtained results are presented, with an attempt to compare the advantages and disadvantages of both methods.\u0000\u0000","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129244534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-10-01DOI: 10.5604/01.3001.0012.4888
P. Hermanowski, Dagmara Popiel, Wojciech Kukulski
Growth of a city, which is linked with intensive urban development, systematically affects groundwater recharge by diminishing its rate. Thus, the phenomenon influences groundwater resources in a hydrogeological unit and, in turn, it causes negative environmental consequences which are difficult or even impossible to reverse. This study analyses the effect of urban development on water budget and its impact on the water-dependent ecosystem. In 1959, a peat bog nature reserve – the Żurawiniec Nature Reserve – was established in the north of Poznań, covering an area of ca. 1.5 ha. During many years the area was losing its original character, which resulted in desiccation and complete deterioration of peatland plants. The analysis of water budget reduction was done through the integration of a spatially distributed water balance model and a numerical hydrogeological model. The simulations were based on data collected for the years 1952, 2001 and 2014. The results of simulations emphasize the significant human impact on groundwater budget leading to a continuous groundwater level dropdown, resulting in over 2 m lower groundwater level in year 2001 in relation to year 1952. The main reason for negative repercussion was a constant decrease of groundwater recharge due to urbanization.
{"title":"NUMERICAL ANALYSIS OF HUMAN PRESSURE ON GROUNDWATER BUDGET IN THE AREA OF THE ŻURAWINIEC PEAT BOG NATURE RESERVE IN POZNAŃ","authors":"P. Hermanowski, Dagmara Popiel, Wojciech Kukulski","doi":"10.5604/01.3001.0012.4888","DOIUrl":"https://doi.org/10.5604/01.3001.0012.4888","url":null,"abstract":"Growth of a city, which is linked with intensive urban development, systematically affects groundwater recharge by diminishing its rate. Thus, the phenomenon influences groundwater resources in a hydrogeological unit and, in turn, it causes negative environmental consequences which are difficult or even impossible to reverse. This study analyses the effect of urban development on water budget and its impact on the water-dependent ecosystem. In 1959, a peat bog nature reserve – the Żurawiniec Nature Reserve – was established in the north of Poznań, covering an area of ca. 1.5 ha. During many years the area was losing its original character, which resulted in desiccation and complete deterioration of peatland plants. The analysis of water budget reduction was done through the integration of a spatially distributed water balance model and a numerical hydrogeological model. The simulations were based on data collected for the years 1952, 2001 and 2014. The results of simulations emphasize the significant human impact on groundwater budget leading to a continuous groundwater level dropdown, resulting in over 2 m lower groundwater level in year 2001 in relation to year 1952. The main reason for negative repercussion was a constant decrease of groundwater recharge due to urbanization.","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123094141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Centralna część synklinorium kielecko-łagowskiego w Górach Świętokrzyskich jest rejonem występowania licz - nych udokumentowanych i perspektywicznych złóż wapieni i dolomitów środkowodewońskich. W celu określenia wpływu od - działywania odwodnienia wyrobisk górniczych na warunki wodne wykonano model matematyczny rejonu z wykorzystaniem programu Visual Modflow. Obliczono na nim prognozy zasięgu oddziaływania planowanych odwodnień i ich wpływu na zasoby eksploatacyjne okolicznych ujęć wód podziemnych. Pozwolą one władzom samorządowym na poznanie skutków zmian warunków wodnych już na wstępnym etapie starań zakładów górniczych o pozyskanie koncesji na wydobycie kopaliny poniżej zwierciadła wód podziemnych.
{"title":"Prediction of the impact of mine dewatering on aquatic environment – examples from the quarries of industrial minerals in the Łagów region, the Holy-Cross Mountains","authors":"Katarzyna Białecka, J. Prazak","doi":"10.7306/bpig.1","DOIUrl":"https://doi.org/10.7306/bpig.1","url":null,"abstract":"Centralna część synklinorium kielecko-łagowskiego w Górach Świętokrzyskich jest rejonem występowania licz - nych udokumentowanych i perspektywicznych złóż wapieni i dolomitów środkowodewońskich. W celu określenia wpływu od - działywania odwodnienia wyrobisk górniczych na warunki wodne wykonano model matematyczny rejonu z wykorzystaniem programu Visual Modflow. Obliczono na nim prognozy zasięgu oddziaływania planowanych odwodnień i ich wpływu na zasoby eksploatacyjne okolicznych ujęć wód podziemnych. Pozwolą one władzom samorządowym na poznanie skutków zmian warunków wodnych już na wstępnym etapie starań zakładów górniczych o pozyskanie koncesji na wydobycie kopaliny poniżej zwierciadła wód podziemnych.","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124086870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
W artykule przedstawiono wpływ działalności górniczej na rozwój ruchów masowych na przykładzie czterech osuwisk. Pierwsze z nich znajduje się w Rydułtowach, na obszarze niecki osiadań spowodowanej podziemną eksploatacją węgla kamiennego. Osuwisko to zagraża najstarszemu tunelowi kolejowemu w Polsce, a jego uaktywnienie było prawdopodobną przyczyną zniszczenia tunelu w 1857 r. Kolejne dwa osuwiska pośrednio są związane z podziemnym ługowaniem soli w krakowskich Swoszowicach. Ostatni z przykładów to osuwisko rozwinięte w nieczynnej kopalni iłów Zesławice, będące świadectwem wpływu powierzchniowej eksploatacji i skarpowania zboczy na rozwój osuwisk.
{"title":"DZIAŁALNOŚĆ GÓRNICZA JAKO JEDEN Z CZYNNIKÓW WPŁYWAJĄCYCH NA ROZWÓJ OSUWISK","authors":"M. Wódka","doi":"10.7306/bpig.50","DOIUrl":"https://doi.org/10.7306/bpig.50","url":null,"abstract":"W artykule przedstawiono wpływ działalności górniczej na rozwój ruchów masowych na przykładzie czterech osuwisk. Pierwsze z nich znajduje się w Rydułtowach, na obszarze niecki osiadań spowodowanej podziemną eksploatacją węgla kamiennego. Osuwisko to zagraża najstarszemu tunelowi kolejowemu w Polsce, a jego uaktywnienie było prawdopodobną przyczyną zniszczenia tunelu w 1857 r. Kolejne dwa osuwiska pośrednio są związane z podziemnym ługowaniem soli w krakowskich Swoszowicach. Ostatni z przykładów to osuwisko rozwinięte w nieczynnej kopalni iłów Zesławice, będące świadectwem wpływu powierzchniowej eksploatacji i skarpowania zboczy na rozwój osuwisk.","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127542656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The subject of the research was to analyse the stability of slopes with varied geological structure covered by landslide processes. Such analyses are usually carried out for landslides where structural protection and construction works are planned. An important element is proper documentation of geological and engineering soil and rock parameters, which should form the basis for stability calculations. The GEO-5 software was used for the calculations – the slope and scarp stability module. The aim of the article is to promote the methodology of documenting geological and engineering conditions in landslide areas. The general characteristics of selected research areas where inclinometer columns were installed and the methods of landslide tests were described. They were applied in accordance with the scheme: field works, laboratory tests, inclinometer measurements, and slope stability calculations for selected calculation sections. Landslides, which were analysed, are located within the Outer Flysch Carpathians, classified as tectonic units: Magura, Silesia, Podlasie, Grybów, as well as the Miechów Basin and the Carpathian Foredeep. Both surface and subsurface parts of each of the selected landslides were studied. The studies allowed the creation of a landslide model based on geological research. As a result of detailed analysis of drill cores and identified shear planes in the form of clear slickenside, the main slip planes were determined. In each landslide area, inclinometer
{"title":"Stability of landslide slopes based on physical and mechanical properties of rocks and soils and inclinometer measurements","authors":"J. Kos","doi":"10.7306/bpig.53","DOIUrl":"https://doi.org/10.7306/bpig.53","url":null,"abstract":"The subject of the research was to analyse the stability of slopes with varied geological structure covered by landslide processes. Such analyses are usually carried out for landslides where structural protection and construction works are planned. An important element is proper documentation of geological and engineering soil and rock parameters, which should form the basis for stability calculations. The GEO-5 software was used for the calculations – the slope and scarp stability module. The aim of the article is to promote the methodology of documenting geological and engineering conditions in landslide areas. The general characteristics of selected research areas where inclinometer columns were installed and the methods of landslide tests were described. They were applied in accordance with the scheme: field works, laboratory tests, inclinometer measurements, and slope stability calculations for selected calculation sections. Landslides, which were analysed, are located within the Outer Flysch Carpathians, classified as tectonic units: Magura, Silesia, Podlasie, Grybów, as well as the Miechów Basin and the Carpathian Foredeep. Both surface and subsurface parts of each of the selected landslides were studied. The studies allowed the creation of a landslide model based on geological research. As a result of detailed analysis of drill cores and identified shear planes in the form of clear slickenside, the main slip planes were determined. In each landslide area, inclinometer","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124631248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
. The Łódź agglomeration, due to its location in the watershed zone, has very limited possibilities of using surface water resources. Its establishment and dynamic development was determined by the abundant aquifer structures of the Łódź Basin and its Ceno zoic overburden. The area of the Mogilno-Łódź Basin shows a considerable geothermal potential. It partly results from the saturation of the deep bedrock of salt structures showing increased heat conductivity. The Lower Cretaceous and Lower Jurassic geothermal reservoirs are considered most promising. Waters occurring there, apart from high temperature, are characterized by high mineralization and high reservoir pressures. The Lower Cretaceous aquifer seems to be most threatened. Geothermal installations generate a potential increase of the risk of ascension of its highly mineralized waters from Triassic and Jurassic sediments. The threat does not exist outside the boundary separating fresh and mineral waters because in this area the aquifer loses its importance as a useful fresh water aquifer.
{"title":"Fresh and thermal waters of the Łódź Basin – potential threats to exploitation in the Łódź agglomeration","authors":"J. Małecki, M. Ziułkiewicz","doi":"10.7306/bpig.16","DOIUrl":"https://doi.org/10.7306/bpig.16","url":null,"abstract":". The Łódź agglomeration, due to its location in the watershed zone, has very limited possibilities of using surface water resources. Its establishment and dynamic development was determined by the abundant aquifer structures of the Łódź Basin and its Ceno zoic overburden. The area of the Mogilno-Łódź Basin shows a considerable geothermal potential. It partly results from the saturation of the deep bedrock of salt structures showing increased heat conductivity. The Lower Cretaceous and Lower Jurassic geothermal reservoirs are considered most promising. Waters occurring there, apart from high temperature, are characterized by high mineralization and high reservoir pressures. The Lower Cretaceous aquifer seems to be most threatened. Geothermal installations generate a potential increase of the risk of ascension of its highly mineralized waters from Triassic and Jurassic sediments. The threat does not exist outside the boundary separating fresh and mineral waters because in this area the aquifer loses its importance as a useful fresh water aquifer.","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":" 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113951313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Osuwiska w kopalniach odkrywkowych węgla brunatnego zmniejszają efektywność eksploatacji i mogą zagrażać środowisku. Przeciwdziałanie jest trudne ze względu na duże objętości osuwisk, prędkości przemieszczeń oraz głębokość eksploatacji. Szczególne znaczenie może mieć monitoring z wykorzystaniem nowoczesnych metod pomiarowych. W celu przedstawienia specyficznych uwarunkowań geologiczno-inżynierskich oraz skali występujących zagrożeń, w pierwszej części artykułu zaprezentowano przykłady osuwisk w największych polskich kopalniach węgla brunatnego oraz metody przeciwdziałania. W drugiej części zaprezentowano rezultaty badań w projekcie UE RFCS Slopes „Inteligentne metody inżynierskie w kopalniach odkrywkowych węgla brunatnego”. W ramach projektu, realizowanego w sześciu krajach europejskich, autor wykonał badania na zachodnim zboczu Pola Bełchatów. W grudniu 2016 r. zainstalowano tam pierwszy w polskiej kopalni odkrywkowej zdalny system monitoringu osuwisk. Zlokalizowana na poziomie 42 m n.p.m. stacja umożliwia monitoring do głębokości 100 m. W ciągu 2,5 roku zaobserwowano przemieszczenia 280 mm do głębokości 45 m. Prace obejmowały wiercenia rdzeniowe, badania podstawowych parametrów fizycznych i wytrzymałościowych gruntów oraz modelowanie numeryczne. Stwierdzono tam niskie wartości Fs = 0,83–1,14. Interferometria satelitarna PSI w wysokiej rozdzielczości wykryła przemieszczenia do 60 mm. Partnerzy projektu Slopes wykonali skanowanie lotnicze LiDAR z użyciem drona oraz naziemne skanowanie laserowe TLS. W podsumowaniu określono możliwości wczesnego ostrzegania oraz uwarunkowania dotyczące zastosowania poszczególnych rodzajów pomiarów monitoringowych.
{"title":"ZAGROŻENIA OSUWISKOWE W POLSKICH ODKRYWKOWYCH KOPALNIACH WĘGLA BRUNATNEGO, PRZYKŁADY PRZECIWDZIAŁANIA ORAZ MOŻLIWOŚCI ZASTOSOWANIA ZDALNEGO MONITORINGU W CELU OGRANICZENIA RYZYKA","authors":"Z. Bednarczyk","doi":"10.7306/BPIG.46","DOIUrl":"https://doi.org/10.7306/BPIG.46","url":null,"abstract":"Osuwiska w kopalniach odkrywkowych węgla brunatnego zmniejszają efektywność eksploatacji i mogą zagrażać środowisku. Przeciwdziałanie jest trudne ze względu na duże objętości osuwisk, prędkości przemieszczeń oraz głębokość eksploatacji. Szczególne znaczenie może mieć monitoring z wykorzystaniem nowoczesnych metod pomiarowych. W celu przedstawienia specyficznych uwarunkowań geologiczno-inżynierskich oraz skali występujących zagrożeń, w pierwszej części artykułu zaprezentowano przykłady osuwisk w największych polskich kopalniach węgla brunatnego oraz metody przeciwdziałania. W drugiej części zaprezentowano rezultaty badań w projekcie UE RFCS Slopes „Inteligentne metody inżynierskie w kopalniach odkrywkowych węgla brunatnego”. W ramach projektu, realizowanego w sześciu krajach europejskich, autor wykonał badania na zachodnim zboczu Pola Bełchatów. W grudniu 2016 r. zainstalowano tam pierwszy w polskiej kopalni odkrywkowej zdalny system monitoringu osuwisk. Zlokalizowana na poziomie 42 m n.p.m. stacja umożliwia monitoring do głębokości 100 m. W ciągu 2,5 roku zaobserwowano przemieszczenia 280 mm do głębokości 45 m. Prace obejmowały wiercenia rdzeniowe, badania podstawowych parametrów fizycznych i wytrzymałościowych gruntów oraz modelowanie numeryczne. Stwierdzono tam niskie wartości Fs = 0,83–1,14. Interferometria satelitarna PSI w wysokiej rozdzielczości wykryła przemieszczenia do 60 mm. Partnerzy projektu Slopes wykonali skanowanie lotnicze LiDAR z użyciem drona oraz naziemne skanowanie laserowe TLS. W podsumowaniu określono możliwości wczesnego ostrzegania oraz uwarunkowania dotyczące zastosowania poszczególnych rodzajów pomiarów monitoringowych.","PeriodicalId":321173,"journal":{"name":"Biuletyn Państwowego Instytutu Geologicznego","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133346090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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