Archives for Technical Sciences最新文献

IDENTIFICATION AND ANALYSIS OF RISKS IN CIVIL ENGINEERING PROJECTS 识别和分析土木工程项目的风险

IF 0.1

Archives for Technical Sciences Pub Date : 2024-04-24 DOI: 10.59456/afts.2024.1630.045m

Goran Marinković, Tihomir Milutinović, Marko Božić

引用次数: 0

LIQUEFACTION-INDUCED DAMAGE IN THE CITIES OF ISKENDERUN AND GOLBASI AFTER THE 2023 TURKEY EARTHQUAKE 2023 年土耳其地震后伊斯肯德伦和戈尔巴西市因液化造成的破坏

IF 0.1

Archives for Technical Sciences Pub Date : 2024-04-24 DOI: 10.59456/afts.2024.1630.079m

Nikolay Milev, Kiyota Takashi, Juan Briones, Othon Briones, O. Cinicioglu, Seda Torisu

{"title":"LIQUEFACTION-INDUCED DAMAGE IN THE CITIES OF ISKENDERUN AND GOLBASI AFTER THE 2023 TURKEY EARTHQUAKE","authors":"Nikolay Milev, Kiyota Takashi, Juan Briones, Othon Briones, O. Cinicioglu, Seda Torisu","doi":"10.59456/afts.2024.1630.079m","DOIUrl":"https://doi.org/10.59456/afts.2024.1630.079m","url":null,"abstract":"\u0000 On February 6th 2023 two major earthquakes struck southeast Turkey, M7.7 Kahramanmaras and M7.6 Elbistan, respectively. Unfortunately, due to the impact of these catastrophic events more than 50 000 casualties and 35 000 collapsed buildings have been reported since then. The aim of the study is to demonstrate preliminary site response analysis and assessment of re-liquefaction potential of sites which have been affected by the earthquakes – especially the cities of Iskenderun and Golbasi. Both site-specific areas have clear evidences of liquefaction and lateral spreading events which imply the focus of the presented paper. A series of geophysical MASW and microtremor tests have been performed in order to determine shear wave velocities up to depth of 30 m as well as the fundamental natural frequency of the soil deposits. \u0000Moreover, samples have been collected from sand and silt ejecta in order to evaluate some basic physical properties – grain-size curves, specific gravity and plasticity parameters. On the basis of the obtained data seismic classification of the investigated sites according to current design codes has been made and in-depth distance to relatively stiff layer has been assumed. For the sake of evaluating risk of re-liquefaction the widely-used simplified stress-based approach to triggering assessment has been adopted considering some rules of the thumb (e.g., sieve analysis and plasticity properties evaluation). Lastly, post-liquefaction reconsolidation settlement and lateral displacement have been determined in terms of future earthquakes\u0000","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140662434","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}

引用次数: 0

STATE-OF-THE-ART APPLICATION OF THE LOG-PILING METHOD IN THE ROLE OF SHALLOW GROUND IMPROVEMENT FOR LIQUEFACTION MITIGATION 对数打桩法在浅层地基改良以减轻液化作用方面的最新应用

IF 0.1

Archives for Technical Sciences Pub Date : 2024-04-24 DOI: 10.59456/afts.2024.1630.059m

Nikolay Milev, Kiyota Takashi, Osawa Shoei, Numata Atsunori

{"title":"STATE-OF-THE-ART APPLICATION OF THE LOG-PILING METHOD IN THE ROLE OF SHALLOW GROUND IMPROVEMENT FOR LIQUEFACTION MITIGATION","authors":"Nikolay Milev, Kiyota Takashi, Osawa Shoei, Numata Atsunori","doi":"10.59456/afts.2024.1630.059m","DOIUrl":"https://doi.org/10.59456/afts.2024.1630.059m","url":null,"abstract":"\u0000 This research paper focuses on evaluating the log piling technique as a sustainable, cost-effective, and environmentally friendly solution for reducing soil liquefaction risks during earthquakes. Although this method has been used extensively in Japan, mainly aiming for complete soil layer penetration, its economic viability is questionable in cases requiring very deep soil improvements. The study highlights that shallow ground improvement can notably enhance the seismic behavior of the soil-improvement-structure system, as evidenced by the reduced total and penetration settlements caused by liquefaction. The paper presents a methodology for determining the optimal dimensions of the modified ground zone using both small and medium-scale 1-g shaking table tests. \u0000The small-scale tests involve a detailed parametric study, examining variables like improvement width, pile spacing, and the depth-to-thickness ratio of the improved layer. Medium-scale tests, on the other hand, are geared towards identifying the minimum effective pile length. This approach provides a practical guideline for engineers to implement log piling for small residential buildings. Additionally, the paper utilizes finite element method (FEM) effective stress analysis, incorporating a PLAXIS 2D-based constitutive model (PM4Sand) calibrated with laboratory undrained cyclic torsional tests. This model accounts for the changes in effective stress during seismic activities. Finally, the study correlates its numerical findings with the results from the 1-g shaking table experiments, offering a well-rounded perspective on the effectiveness of log piling in mitigating liquefaction risks during seismic events\u0000 \u0000","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140665385","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}

引用次数: 0

MODELS OF CONTEPMPORARY GEODYNAMIC PROCESSES ON THE RIM OF THE SARAJEVO DEPRESSION 萨拉热窝凹陷边缘的当代地球动力过程模型

IF 0.1

Archives for Technical Sciences Pub Date : 2024-04-24 DOI: 10.59456/afts.2024.1630.015g

Aco Goljanin, Amel Demirović, Maida Žiko

引用次数: 0

SEPARATED GEOTECHNICAL ENVIRONMENTS DURING THE RESEARCH OF THE TERRAIN AT THE LOCATION PLANNED FOR THE CONSTRUCTION OF THE SILOS IN KOZLUK NEAR ZVORNIK 在兹沃尔尼克附近的科兹卢克计划建造筒仓的地点进行地形研究期间分离的岩土工程环境

IF 0.1

Archives for Technical Sciences Pub Date : 2024-04-24 DOI: 10.59456/afts.2024.1630.025dj

N. Đurić, Dijana Djuric

{"title":"SEPARATED GEOTECHNICAL ENVIRONMENTS DURING THE RESEARCH OF THE TERRAIN AT THE LOCATION PLANNED FOR THE CONSTRUCTION OF THE SILOS IN KOZLUK NEAR ZVORNIK","authors":"N. Đurić, Dijana Djuric","doi":"10.59456/afts.2024.1630.025dj","DOIUrl":"https://doi.org/10.59456/afts.2024.1630.025dj","url":null,"abstract":"\u0000 The construction of high-rise objects in solid rocks characterized by frequent changes in its vertical profile requires a more detailed study of lithological layers, tectonic characteristics and analysis of physical and mechanical parameters. Layers of different strength and characteristics in all elements make it possible to separate it by geological environments, in order to choose the most favorable one for the foundation of objects. As part of the construction of additional silos at the existing \"Molaris\" Mill complex in Kozluk near Zvornik, research was conducted at the central points of the future facilities and the immediate surroundings.\u0000Investigation works up to a depth of 12.0 m defined all the complexity of the terrain structure in a small area. Conducted research on rock samples from exploration works and from the open terrain profile showed differences in the physical and mechanical characteristics of softer rocks susceptible to solubility in water. Separated environments show that the foundation of objects cannot be done only in one environment, given the folds of the layers in a very small area.\u0000","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140662702","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}

引用次数: 0

EFFECTS OF LANDFILL LEACHES ON GROUND AND SURFACE WATERS: A CASE STUDY OF A WILD LANDFILL IN EASTERN BOSNIA AND HERZEGOVINA 垃圾填埋场沥滤液对地下水和地表水的影响：对波斯尼亚和黑塞哥维那东部一个野生垃圾填埋场的个案研究

IF 0.1

Archives for Technical Sciences Pub Date : 2024-04-24 DOI: 10.59456/afts.2024.1630.097s

Svetlana Sredić, N. Knežević, Igor Milunović

引用次数: 0

ANALYSIS OF OCCUPATIONAL INJURIES IN AN IRON ORE MINE IN BOSNIA AND HERZEGOVINA IN THE PERIOD FROM 2002 TO 2021 2002 至 2021 年期间波斯尼亚和黑塞哥维那铁矿职业伤害分析

IF 0.1

Archives for Technical Sciences Pub Date : 2024-04-24 DOI: 10.59456/afts.2024.1630.033v

B. Vranješ, Mile Vajkić, Ljubica Figun, Dragan Adamović, Evica Jovanović

{"title":"ANALYSIS OF OCCUPATIONAL INJURIES IN AN IRON ORE MINE IN BOSNIA AND HERZEGOVINA IN THE PERIOD FROM 2002 TO 2021","authors":"B. Vranješ, Mile Vajkić, Ljubica Figun, Dragan Adamović, Evica Jovanović","doi":"10.59456/afts.2024.1630.033v","DOIUrl":"https://doi.org/10.59456/afts.2024.1630.033v","url":null,"abstract":"\u0000 By designing protection measures, the occupational safety system should provide the best possible working conditions for all employees in every economic activity, including in mining production. The analysis of occupational injuries in a certain period of time should enable the collection of data on certain etiological specificities of injuries and in this way ensure the selection of adequate preventive measures of occupational safety. Monitoring the indicators of occupational injuries within the analysis, which is presented in this paper, provides information about the change in the state of working conditions and enables the determination of the general tendency of its decreasing or increasing change.\u0000One-factor ANOVA analysis was applied to determine the variability of the results within the established groups of selected etiological factors and to determine the impact on the observed occurrence of the number of occupational injuries in the mining company. The application of Pareto analysis to determine the most dominant causes of occupational injuries is of crucial importance for determining the direction of action of preventive actions and corrective measures in the occupational safety system.\u0000","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140662271","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}

引用次数: 0

ARCHITECTURAL DESIGNING THE NURSING HOMES IN TEHRAN CITY (AS A SAMPLE) 德黑兰市养老院的建筑设计（作为样本）

IF 0.1

Archives for Technical Sciences Pub Date : 2024-04-24 DOI: 10.59456/afts.2024.1630.001m

Mahdi Aliyari

{"title":"ARCHITECTURAL DESIGNING THE NURSING HOMES IN TEHRAN CITY (AS A SAMPLE)","authors":"Mahdi Aliyari","doi":"10.59456/afts.2024.1630.001m","DOIUrl":"https://doi.org/10.59456/afts.2024.1630.001m","url":null,"abstract":"\u0000 In recent years, there has been an increasing trend of entrusting the elderly to nursing homes, thus providing a suitable space that meets their physical, psychological, social, and spiritual needs has become necessary. The nursing homes is the first and simplest solution that can be considered for such individuals. However, considering the characteristics and temperament of this group, it is necessary to define a model that can meet the elderly's spiritual and physical needs, alongside maintaining their normal life, in the home of their hopes and memories. Therefore, there is a need for a model that defines a new space in accordance with the psychological and physical conditions of the elderly and can replace previous methods in order to improve the mood of the elderly.\u0000The design of elderly homes, and certainly the creation of suitable decoration for them, should match the global standards. The concept of an elderly village is another model that has been introduced and implemented for the elderly in the West. In this model, housing units have been designed for the elderly to live alone or with their families. Basic and necessary services for the elderly are available in proximity and neighboring the housing units. These places will have a positive impact on creating a sense of usefulness, increasing hope in life, and uplifting the mood of the elderly.\u0000The elderly have the autonomy to use these facilities and they fulfill their needs, such as suitable spaces for exercise and recreation, socializing with peers, preserving their dignity, and creating conditions for their independence during leisure time. They also provide counseling, teach necessary techniques for the elderly’s lives and more.\u0000","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140661858","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}

引用次数: 0

INFLUENCE OF DIFFERENT NUTRIENT SOURCES AND GENOTYPES ON THE CHEMICAL QUALITY AND YIELD OF LETTUCE 不同营养源和基因型对莴苣化学品质和产量的影响

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Archives for Technical Sciences Pub Date : 2023-11-27 DOI: 10.59456/afts.2023.1529.049m

Z. Malešević, Aleksandra Govedarica-Lučić, Ivana Bošković, Marko Petković, Dragutin Đukić, Vesna Đurović

引用次数: 0

SMART MINING: JOINT MODEL FOR PARAMETRIZATION OF COAL EXCAVATION PROCESS BASED ON ARTIFICIAL NEURAL NETWORKS 智能采矿：基于人工神经网络的煤炭挖掘过程参数化联合模型

IF 0.1

Archives for Technical Sciences Pub Date : 2023-11-27 DOI: 10.59456/afts.2023.1529.011t

Trivan Jelena, Srđan Kostić

{"title":"SMART MINING: JOINT MODEL FOR PARAMETRIZATION OF COAL EXCAVATION PROCESS BASED ON ARTIFICIAL NEURAL NETWORKS","authors":"Trivan Jelena, Srđan Kostić","doi":"10.59456/afts.2023.1529.011t","DOIUrl":"https://doi.org/10.59456/afts.2023.1529.011t","url":null,"abstract":"In the present paper we propose a new artificial neural network model for the estimation of coal cutting resistance and excavator performance as a nonlinear relationship between the examined input (excavator movement angle in the left and right direction, slice height and thickness, coal unit weight, compressive and shear strength) and output factors (excavator effective capacity, maximum current/power/force/energy consumption, linear and areal cutting resistance). We analyze the dataset collected from three open-pit coal mines in Serbia: Field D, Tamnava Eastern Field and Tamnava Western Field (all part of the Kolubara coal basin). The model is developed using a multilayer feed-forward neural network, with a Levenberg-Marquardt learning algorithm. Results of the preformed analysis indicate satisfying statistical accuracyof the developed model (R>0.9). Additionally, we analyze the individual effects of input factors on the properties of coal cutting resistance and performance of the excavator, by invokling the multiple linear regression. As a result, we single out the statististically significant and physically possible interactions between the individual controlling factors","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139227883","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}

引用次数: 0