Wyniki wyszukiwania - BazTech

1

SAFETY OF THE LOCATION OF FACILITIES IN THE VICINITY OF EXPLOSIVES STORAGE FACILITIES

Olszewski Dawid, Partyka Jacek, Krysiak Piotr, Wysoczański Andrzej

Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej

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2025

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Nr 94 (tom 1)

57--76

EN

This paper presents issues related to the characteristics and location considerations for storage facilities containing explosives in relation to other surrounding structures. It outlines methods and approaches for establishing the minimum permissible distance between the primary storage facility and other nearby structures, taking into account the effects of shock waves generated by the stored explosives. The criteria for the allocation of base storage facilities (depots) and surrounding structures are discussed, taking into account embankment and the formation of large-mass fragments, according to valid regulations governing this domain. To aid readers in understanding the practical application of methods and formulas for establishing the permissible distances between explosive material storage facilities and their surrounding structures, a calculation example is provided. This is crucial for promoting the widespread application of relevant regulations and proper calculation methodologies presented in the study, ensuring the safety of production, maintenance, and storage of explosives.

2

Numerical and modelling studies of the geogrid-reinforced ash-storage embankment in the conditions of the undermined territories

Lukpanov Rauan E.

Journal of Water and Land Development

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2025

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no. 64

230--244

EN

The article presents the results of the study of the stability of the reinforced ash-storage embankment (ASE) of a functioning metallurgical plant. The purpose of the tests was to determine the numerical modelling correction factors based on the model test results. The model tests were performed at a scale of 1:30 to the full-scale embankment. The numerical modelling was a simulation of model testing in two tasks. The first task considered the simulation of model testing on a reduced scale (relative to ASE) of a real sheet, using the characteristics of an equivalent material. The second task considered the simulation of ash-and-slag mixtures on an in situ scale with real characteristics but under the conditions of the model tests. The quantitative assessment of each of the research methods, as well as the identified regularities of the stress-strain states of reinforced and unreinforced embankment, are presented in the article. Based on the results of the studies, a method of stability assessment by numerical modelling was obtained, the results of which reflect the most reliable condition of the stress-strain state of the reinforced embankment (since the results are subject to adjustment based on the regularities of the model, although still in situ tests).

3

Development of thermal leak detection method and monitoring of seepage and internal erosion processes in earth dams, levees and dikes and their implementation in Poland

Radzicki Krzysztof, Stoliński Marek

Materiały Budowlane

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2024

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nr 12

55--77

EN

To reduce the costs of repairs and the risk of damming structures failures, methods for their investigations and monitoring are currently being intensively developed. The thermal method is globally recommended for studying intensive seepage, including the detection of leaks and internal erosion processes in earth damming structures such as earth dams, canal dikes, and levees. The article presents the key aspects of the development of this method and its implementation in Poland. It describes its principles and pilot applications on existing and newly constructed dams and levees in Poland, using thermal sensors for linear measurements, such as the MPointS multipoint sensor and fiber optic cables. The development of a thermo-hydraulic numerical modelling for the highly accurate determination of the geometry of individual zones and the hydraulic conductivity values within the cross-section of an existing earth dam, including the identification of erosion process zones, is presented.

PL

W celu ograniczenia kosztów remontów oraz ryzyka katastrof budowli piętrzących intensywnie rozwijane są obecnie metody ich badań oraz monitoringu. Metoda termiczna jest rekomendowana na świecie do badania nasilonej filtracji, w tym detekcji przecieków oraz erozji wewnętrznej w ziemnych budowlach piętrzących, takich jak zapory ziemne, wały kanałów i wały przeciwpowodziowe. W artykule przedstawiono najistotniejsze zagadnienia rozwoju tej metody i jej wdrożenia w Polsce. Opisano jej podstawy oraz aplikacje pilotażowe na istniejących i nowo budowanych zaporach i wałach w Polsce, z zastosowaniem termicznych czujników do pomiarów liniowych, jak wielopunktowy czujnik MPointS oraz kable światłowodowe. Przedstawiono także rozwinięcie metody termohydraulicznego modelowania numerycznego do bardzo dokładnego określania geometrii poszczególnych stref i wartości współczynnika filtracji w przekroju istniejącej zapory ziemnej, w tym identyfikacji stref procesu erozyjnego.

4

Wzmocnienie podstaw nasypów i wykonanie platform roboczych na słabym podłożu

Duszyński Remigiusz, Zamara Katarzyna

Inżynieria i Budownictwo

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2024

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R. 80, nr 6

471--479

PL

Georuszty w budownictwie infrastrukturalnym, a zwłaszcza komunikacyjnym i w geotechnice, są stosowane od dziesięcioleci. Pomimo to wciąż stosunkowo słabo rozpowszechnione są metody projektowania rozwiązań z wykorzystaniem tych materiałów. O ile zastosowania georusztów (czy też szerzej: geosyntetyków) w konstrukcjach z gruntu zbrojonego (ściany oporowe, strome skarpy) i związane z tym metody projektowe są dobrze opisane w literaturze i normach, o tyle znacznie skromniejsza jest dostępna wiedza na temat zastosowań związanych ze wzmocnieniem podłoża bezpośrednio pod konstrukcjami nawierzchni drogowych i kolejowych, z budową platform roboczych na gruntach o bardzo małej nośności lub też ze zwiększeniem trwałości zmęczeniowej samej nawierzchni. Taka sytuacja wynika między innymi z faktu, że różne geosyntetyki, w tym różne georuszty, w różny i często bardzo odmienny sposób wpływają na nośność podłoża i trwałość konstrukcji. Stąd też – inaczej niż np. w przypadku ścian oporowych – trudno jest opracować jedną uniwersalną metodę projektową obejmującą ten zakres zastosowań. Konieczne jest opieranie się na doświadczeniach producentów poszczególnych odmian georusztów czy geosiatek oraz korzystanie z metod projektowych opracowanych przez nich na bazie tych doświadczeń. W niniejszym artykule przedstawiono technologię materacy geokomórkowych wykorzystywaną przede wszystkim w podstawie nasypów na słabych i odkształcalnych podłożach, jak również do konstrukcji tymczasowych platform roboczych. Na przykładzie zrealizowanych inwestycji dokonano analizy pracy konstrukcji w złożonych i skomplikowanych warunkach geotechnicznych. Przedstawiono rezultaty analizy wstecznej konstrukcji poddanych badaniom w skali rzeczywistej, które mogą posłużyć do wstępnej analizy rozwiązań w programach modelowania numerycznego.

EN

Geosynthetics have been used for decades in infrastructure construction, especially in traffic construction and geotechnics. Despite this, there is still a relatively low uptake of methods for designing solutions using these materials. While the applications of geogrids (or more broadly: geosynthetics) in reinforced soil structures (retaining walls, steep slopes) and the associated design methods are well described in the literature and standards, there is much more modest knowledge available on applications related to the reinforcement of the subsoil directly under road and railway pavement structures, the construction of working platforms on soils with very low bearing capacity, or increasing the fatigue life of the pavement itself. This situation is due, among other things, to the fact that different geosynthetics, including different geogrids, affect the bearing capacity of the subsoil and the durability of the structure in different and often very different ways. Hence – unlike, for example, in the case of retaining walls – it is difficult to develop a one-size-fits-all design method covering this range of applications. It is necessary to rely on the experience of manufacturers of particular varieties of geogrids or geo-grids and to use design methods developed by them based on this experience. This article presents the technology of geocellular mattresses used primarily in the base of embankments on weak and deformable grounds, as well as for the construction of temporary working platforms. The performance of structures in complex and complicated geotechnical conditions is analysed on the example of completed projects. The results of back analysis of structures subjected to real-scale tests are presented, which can be used for preliminary analysis of solutions in numerical modelling programmes.

5

Preliminary experimental investigation into the use of recycled fibres from textile waste for the improvement of embankments

Rossignoli Chiara, Caruso Marco, Jommi Cristina, Sterpi Donatella

Journal of Water and Land Development

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2023

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no. 59

202--207

EN

Failures that occurred in the last few decades highlighted the need to raise awareness about the emergent risk related to the impact localised degradation phenomena have on embankments. Common interventions aimed to improve embankments, such as the reconstruction of the damaged area or the injection of low-pressure grouts to fill fractures and burrows, may cause the weakening of the structure due to discontinuities between natural and treated zones. Moreover, since such repair techniques require huge volumes of materials, more sustainable solutions are encouraged. At the same time, the textile and fashion industries are looking for sustainable waste management and disposal strategies to face environmental problems concerned with the voluminous textile waste dispatched to landfills or incinerators. The use of soil mixed with textile waste in embankment improvement has been investigated to identify an effective engineering practice and to provide a strategy for the circular economy of textiles. Preliminary laboratory tests have been conducted on soil specimens collected from the Secchia River embankment, Northern Italy, to define the appropriate mixture proportions and to compare physical properties and hydro-mechanical behaviour of natural and treated soils. The results show that an appropriate fibre content offers manageable and relatively homogeneous mixtures. The indluence on soil consistency is mainly due to the textile fibre hydrophilic nature. The addition of fibres reduces the maximum dry density and increases the optimum water content. At low stress levels, the compressibility and hydraulic conductivity appear higher, however macro voids produced during sample preparation may alter the findings.

6

Pakiety zużytych opon samochodowych w budownictwie drogowym - przegląd zastosowań.

Duda Aleksander, Siwowski Tomasz

Drogownictwo

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2023

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nr 2-3

67--75

PL

Pakiety z opon mają znaczny potencjał w zastosowaniach drogowych, szczególnie tam, gdzie ich niska gęstość, odpowiednia przepuszczalność i łatwość w wbudowaniu dają im przewagę w stosunku do materiałów tradycyjnych. Zastosowania drogowe pakietów z opon obejmują m.in.: budowę nasypów, stabilizację i naprawę zboczy (osuwisk), podbudowę dróg na podłożu o niskiej wytrzymałości na ścinanie, materiał zasypowy konstrukcji oporowych i grawitacyjne konstrukcje oporowe (typu gabionowego). W artykule przedstawiono i zilustrowano kilka przykładów wykorzystania pakietów z opon w budownictwie drogowym, poprzedzonych przedstawieniem właściwości materiałowych i parametrów inżynierskich pakietów, stosowanych w konstrukcjach drogowych budowanych na całym świecie.

EN

Waste tyre bales have considerable potential for use in road applications, particularly where their low density, permeability and ease of handling give them an advantage. Road applications include but are not limited to: embankments construction, slope stabilization and repair (landslides), road foundations over soft ground, backfill material for retaining walls and gravity retaining structures (gabion-type). Several case studies, showing the opportunities to use waste tyre bales in road construction, are presented and illustrated in the paper preceded by providing the engineering properties of waste tyre bales, used within the road structures constructed worldwide.

7

Serviceability of cut slope and embankment under seasonal climate variations

Apriyono Arwan, Yuliana, Kamchoom Viroon

Acta Geophysica

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2023

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Vol. 71, no. 2

983--995

EN

In the next 20 years, there will be an extensive investment in transport infrastructure. Although the cut and embankment slopes seem to have the same appearance, they have different responses to climate variations. Understanding their characteristics and performance is necessary to design a safer and more sustainable slope infrastructure. This paper provides a thorough examination of the seasonal performance of cut slopes and embankments. Furthermore, this study suggests an introduction to the impacts of climate change, amplifying seasonal shrinkage–swelling and progressive failure of slope construction under extreme drought and precipitation. Volumetric water content and pore water pressure fluctuations due to seasonal variation were analysed and compared from both the cut slope and the embankment. Moreover, stress path and slope deformation were also investigated in this study to understand the behaviour of the cut slope and the embankment. The results suggest that the cut slope retains more pore water pressure during the wet season due to its lower permeability than an embankment with respect to the construction history. However, pore water pressure and displacement in the cut slope tend to be increased due to the consolidation process after excavation, which requires more time to reach equilibrium. In addition, greater displacement in the cut slope can increase the possibility of delayed failure in the future.

8

Reviews on Finite Element Modeling Practices of Stone Columns for Soft Soil Stabilization Beneath an Embankment Dam

Teshager Daniel Kefelegn, Belayneh Henok Lemma

Studia Geotechnica et Mechanica

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2022

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Vol. 44, nr 4

343--353

EN

This article reviews the numerical approach in stone column practices and presents the benefits of stone columns as a ground improvement of soft soil to support an embankment dam. In this article, the methodological approaches to numerically modeling stone columns in both 2D and 3D studies, as well as the selection of an appropriate constitutive model are discussed. The numerical practices for the installation of the stone column and the validation procedures used to ensure the accuracy of the numerical analysis are also explained. In addition to that, the study also presents the benefits of stone columns in improving settlement behavior, slope stability, and decreasing the end time of consolidation. Parameters that influence the performance of the stone column with their respective results are also assessed.

9

Excavations in the vicinity of the antiflood embankments – calculating issues

Grodecki Michał

Studia Geotechnica et Mechanica

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2022

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Vol. 44, nr 2

138--147

EN

According to Polish law, it is prohibited to perform excavations or locate buildings closer than 50 m from the embankment. In order to obtain exemption from this ban, filtration and stability analysis of the embankment and excavation in the flood conditions have to be performed. This paper presents results of the numerical investigations on interactions between excavations and embankment. Complex nature of the problem is presented. Methodology of numerical simulations and real case examples are described.

10

Jak inteligentny system monitorowania skarp i nasypów InfraGuardTM zwiększa bezpieczeństwo w zagadnieniach kolejowych

Berger Peter, Dąbrowski Michał

Przegląd Komunikacyjny

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2022

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R. 77, nr 4/5

39--44

PL

Typowym rozwiązaniem dla budowy ciągów komunikacyjnych na całym świecie jest ekonomiczne wpasowywanie ich przebiegu do naturalnego ukształtowania terenu. Stąd też typowym jest budowa drogowej i kolejowej na nasypach lub we wcięciach. Zmiany klimatyczne w ostatnim czasie wywołują skrajne warunki i wydarzenia pogodowe, które w znacznym stopniu mają wpływ na stabilność skarp. Zaburzenia takie mogą się objawiać stopniowym osiadaniem o charakterze długoterminowym, lub nagłymi, nieprzewidzianymi osunięciami i zawałami oraz stanowić poważne zagrożenie dla życia ludzkiego.

EN

A typical solution for the construction of ransportation infrastructure around the world is the economic adjustment of their course to the natural terrain. Hence, road and railway construction on embankments or in indentations is typical. Recent climate change is triggering extreme conditions and weather events that have a significant impact on the stability of slopes. Such disturbances may manifest themselves in gradual long-term subsidence, or in sudden, unforeseen landslides and collapses, and constitute a serious threat to human life.

11

Sposób realizacji monitoringu geotechnicznego przeciążenia gruntu organicznego nasypem w sąsiedztwie gazociągu wysokiego ciśnienia

Czyż Magdalena, Lis Maciej, Szafranko Elżbieta

Przegląd Budowlany

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2022

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R. 93, nr 7-8

73--76

PL

Ze względu na bezpieczeństwo robót zarówno obowiązujące przepisy i normy, jak i doświadczenia inżynierskie opisywane w literaturze wskazują na korzyści z prowadzenia monitoringu i obserwacji zachowania podłoża gruntowego. Jest to szczególnie ważne, gdy rozpoznano w głębszych warstwach słabe podłoże gruntowe, a obciążenie w trakcie realizacji robót jest zmienne. W niniejszym artykule opisano sposób realizacji monitoringu osiadań oraz przemieszczeń poziomych nasypu przeciążającego zlokalizowanego w pobliżu gazociągu wysokiego ciśnienia, realizowanego podczas budowy drogi ekspresowej. Opisano elementy systemu geomonitoringu, sposób jego montażu, a także zalety i ograniczenia.

EN

Due to the safety of works, both the applicable regulations and standards as well as engineering experience described in the literature show the benefits of monitoring and observation of the behavior of the subsoil. It is especially important when weak subsoil is identified in the deeper layers and the load is variable during the execution of works. This article describes the method of monitoring subsidence and horizontal displacements of the overload embankment located in the vicinity of the high-pressure gas pipeline, during the construction of the expressway. The elements of the geomonitoring system, the method of its assembly, as well as advantages and limitations are described.

12

Deep neural network and ANN ensemble for slope stability prediction

Gupta A., Aggarwal Y., Aggarwal P.

Archives of Materials Science and Engineering

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2022

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Vol. 116, nr 1

14--27

EN

Purpose: Application of deep neural networks (DNN) and ensemble of ANN with bagging for estimating of factor of safety (FOS) of soil stability with a comparative performance analysis done for all techniques. Design/methodology/approach: 1000 cases with different geotechnical and similar Geometrical properties were collected and analysed using the Limit Equilibrium based Morgenstern-Price Method with input variables as the strength parameters of the soil layers, i.e., Su (Upper Clay), Su (Lower Clay), Su (Peat), angle of internal friction (φ), Su (Embankment) with the factor of safety (FOS) as output. The evaluation and comparison of the performance of predicted models with cross-validation having ten folds were made based on correlation-coefficient (CC), Nash-Sutcliffe-model efficiency-coefficient (NSE), root-mean-square-error (RMSE), mean-absolute-error (MAE) and scattering-index (S.I.). Sensitivity analysis was conducted for the effects of input variables on FOS of soil stability based on their importance. Findings: The results showed that these techniques have great capability and reflect that the proposed model by DNN can enhance performance of the model, surpassing ensemble in prediction. The Sensitivity analysis outcome demonstrated that Su (Lower Clay) significantly affected the factor of safety (FOS), trailed by Su (Peat). Research limitations/implications: This paper sets sight on use of deep neural network (DNN) and ensemble of ANN with bagging for estimating of factor of safety (FOS) of soil stability. The current approach helps to understand the tangled relationship of various inputs to estimate the factor of safety of soil stability using DNN and ensemble of ANN with bagging. Practical implications: A dependable prediction tool is provided, which suggests that model can help scientists and engineers optimise FOS of soil stability. Originality/value: Recently, DNN and ensemble of ANN with bagging have been used in various civil engineering problems as reported by several studies and has also been observed to be outperforming the current prevalent modelling techniques. DNN can signify extremely changing and intricate high-dimensional functions in correlation to conventional neural networks. But on a detailed literature review, the application of these techniques to estimate factor of safety of soil stability has not been observed.

13

Evaluation of geotechnical tests (static load tests) on a selected optimised section of railway Corridor No. Va

Ižvolt Libor, Dobeš Peter

Transport Problems

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2021

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T. 16, z. 2

213--223

EN

To improve the transport service of every country at the required level, it is necessary to set up appropriate infrastructure, including railways, and the necessary facilities of satisfactory quality. After the establishment of the Slovak Railways (ŽSR), the condition of the railway infrastructure was judged to be unsatisfactory. This situation urgently required optimisation of track sections, which are included in the trans-European corridors. The basic aim of optimisation of the railway network of ŽSR is to build a highquality, safe and reliable railway, which, due to its excellent quality, will correspond to the standards of advanced European countries and, at the same time, provide interoperability. Due to this, it was necessary to verify the fulfilment of the prescribed quality parameters on the optimised lines, among others, and also bear the capacity of individual structural parts of the sub-ballast layers. To address this aim, this paper deals with optimised corridor no. Va in the Považská Teplá - Žilina section, where the diagnostics of the quality of the sub-ballast layers was conducted. This paper specifically focuses on the evaluation of the determined values of the bearing capacity of the construction layers of the embankments and their foundations as well as the transition areas between the objects of sub-ballast layers and embankments located in the optimised section of the line.

14

Waste tyre bales in road engineering: an overview of applications

Duda Aleksander, Siwowski Tomasz

Archives of Civil Engineering

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2021

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Vol. 67, nr 3

213--230

EN

Waste tyres are among the largest and most problematic sources of waste today, due to the large volume produced and their long-lasting decomposition and resistance to water and extreme temperatures. Since 2000 in Europe the EU Landfill Directive has forbidden the disposal of waste tyres in a landfill. Since then waste tyre derived products (TDP), including whole tyres, tyre bales, shreds, chips, and crumb rubber, have been widely used also in civil engineering applications. The baling is nowadays the best way for the product recycling of waste tyres. Waste tyre bales have considerable potential for use in road applications, particularly where their low density, permeability and ease of handling give them an advantage. Road applications include but are not limited to: embankments construction, slope stabilization and repair (landslides), road foundations over soft ground, backfill material for retaining walls and gravity retaining structures (gabion-type). Several case studies, showing the opportunities to use waste tyre bales in road construction, are presented and illustrated in the paper preceded by providing the engineering properties of waste tyre bales, used within the road structures constructed worldwide. The article also describes the first world application of abutment backfill from the tyre bales in a road bridge, realized in Poland.

PL

Zużyte opony samochodowe są współcześnie jednym z najbardziej problematycznych odpadów ze względu na ich dużą objętość, długotrwały rozkład w środowisku oraz odporność na wodę i temperaturę. Od roku 2000 dyrektywy unijne wprowadzone w Europie zabraniają składowania zużytych opon samochodowych na wysypiskach odpadów. Od tego czasu produkty z recyklingu opon, w tym: całe opony, opony sprasowane w pakiety, strzępy, chipsy oraz granulat gumowy, są szeroko stosowane w budownictwie oraz w inżynierii lądowej. Powtórne wbudowanie opon sprasowanych w pakiety to obecnie najefektywniejszy sposób na recycling zużytych opon. Pakiety z opon mają znaczny potencjał w zastosowaniach drogowych, szczególnie tam, gdzie ich niska gęstość, odpowiednia przepuszczalność i łatwość w wbudowaniu dają im przewagę w stosunku do materiałów tradycyjnych. Zastosowania drogowe pakietów z opon obejmują m.in.: budowę nasypów, stabilizację i naprawę zboczy (osuwisk), podbudowę dróg na podłożu o niskiej wytrzymałości na ścinanie, materiał zasypowy konstrukcji oporowych i grawitacyjne konstrukcje oporowe (typu gabionowego). W artykule przedstawiono i zilustrowano kilka przykładów wykorzystania pakietów z opon w budownictwie drogowym, poprzedzonych przedstawieniem właściwości materiałowych i parametrów inżynierskich pakietów, stosowanych w konstrukcjach drogowych budowanych na całym świecie. Artykuł opisuje również pierwsze światowe zastosowanie pakietów z opon w zasypce przyczółka mostowego, zrealizowane w Polsce. Ta pierwsza aplikacja została poprzedzona serią badań doświadczalnych, zarówno w laboratorium, jak również in-situ. Wybrane wyniki tych badań, potwierdzające odpowiednie parametry pakietów, również przedstawiono w artykule w porównaniu do wyników nielicznych badań obcych.

15

Modelling and analysis of the stability of a harbour wharf’s embankment with regards to its failure

Dmochowski Grzegorz, Berkowski Piotr, Szołomicki Jerzy, Gronostajska Barbara, Krążelewski Jarosław

Archives of Civil and Mechanical Engineering

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2021

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Vol. 21, no. 4

54--70

EN

The article presents the process of creating a computational model for the stability analysis of a harbour wharf’s embankment with regards to its failure. The described elements that were taken into account at the stage of data preparation are: historical analysis of the structure (structural calculations, and the calculations of the stability of the embankment), results of the author’s own soil and material tests (concrete, steel), environmental conditions (atmospheric and water), the possible load systems that acted on the facility, and also the results from the 3D model of the wharf’s structure. On this basis, five computational schemes were prepared for computer simulations of the stability of the embankment in a plain state of deformations. Various stages and conditions of its operation were taken into account. In conclusion, a possible course of the process of destruction of the structure of the harbour wharf, and the river embankment that cooperates with it, was proposed.

16

Wpływ lokalnych zmian ukształtowania powierzchni terenu na warunki wodne otoczenia, wraz z interpretacją wg Prawa wodnego

Rzonca Bartłomiej

Przegląd Geologiczny

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2020

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Vol. 68, nr 3

178--186

EN

Typical changes in surface relief resulting from earthworks include the construction of earthen and debris-type embankments and the excavation of hillslope sides. The paper places in groups and discusses local changes in the hydrologic conditions associated with these types of changes in relief and provides an interpretation of these changes in agreement with current Polish Water Law. The expected and frequent effect of earthen embankments is a rise in the groundwater level under the embankment, which may lead to the formation of a wetland in its immediate vicinity and higher groundwater levels across larger areas on the hillslope above. Some embankments redirect surface runoff from surrounding areas or block it, thus creating outflow-free depressions. Other embankments help form surface runoff that flows down from the surface of the embankment. Some embankments are secured with solid walls that yield a variety of unique hydrodynamic effects. In many cases, the levelling of terrain for construction purposes is accompanied by the undercutting of hillslopes, the effects of which are also noted in the paper. Yet another issue is the susceptibility of embankments to gravity-driven mass movements, especially mudslides and landslides. The excessive weight of an embankment may also cause landslides in the embankment’s base formations.

17

Identyfikacja i możliwość przystosowania łupków powęglowych z pirytem do stosowania w budownictwie drogowy

Duszyński Andrzej, Jasiński Wiktor, Jórdeczka Łukasz, Pryga-Szulc Aneta

Przegląd Geologiczny

|

2020

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Vol. 68, Nr 9

716--721

EN

Coaly shale is a full-fledged aggregate for road construction, which can be obtained through proper control and processing, meeting the performance characteristics for the application in the construction of embankments. In Poland, from current pro¬duction and resources at landfills, coaly shale with a pyrite content above 1% is a great potential for road construction. It requires adaptation, including on eliminating the possibility of bacteria decomposing this pyrite or its neutralization using limestone materials. At the same time, taking into account the weaknesses of coaly shale landfills (in terms of self-ignition and decomposition), the type of coaly shale and pyrite raw material can be identified as ways of using aggregates from these raw materials for the construction of embankments in the appropriate construction technology.

18

Odkształcenia i przemieszczenia eksploatacyjne podpór mostowych

Rychlewski Piotr

Materiały Budowlane

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2020

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nr 9

31--32

19

Posadowienie nasypów komunikacyjnych na palach

Łach Karolina

Magazyn Autostrady

|

2020

|

Nr 1

24--29

PL

Artykuł porusza zagadnienie posadowienia nasypu komunikacyjnego na palach w warunkach słabonośnego podłoża. Przestawia formuły i wzory do projektowania grupy pali. Opisuje problemy, na które należy zwrócić uwagę przy sprawdzaniu stanów granicznych nośności i użytkowalności.

EN

The article discusses the issue of founding piled embankment on soft soil. The paper presents formulas for the design of a pile group. Problems that should be considered when checking the ultimate and serviceability limit states are described.

20

Model słabego podłoża wzmocnionego kolumnami ze zbrojoną warstwą transmisyjną

Gajewska Beata

Materiały Budowlane

|

2019

|

nr 7

44--46