Archives of Civil Engineering最新文献_第6页

Permeability of sandy soils estimated from particle size distribution and field measurements 根据粒径分布和实地测量估算砂土的渗透性

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147655

Anna Wioletta Gorczewska-Langner, Beata Gumuła-Kawęcka, Rafael Jaworska-Szulc, Adam Angulo-Jaramillo, Szymkiewicz, Wioletta Gorczewska-Langner, Anna Gumuła-Kawęcka, Beata Jaworska-Szulc, Rafael Angulo-Jaramillo, A. Szymkiewicz

{"title":"Permeability of sandy soils estimated from particle size distribution and field measurements","authors":"Anna Wioletta Gorczewska-Langner, Beata Gumuła-Kawęcka, Rafael Jaworska-Szulc, Adam Angulo-Jaramillo, Szymkiewicz, Wioletta Gorczewska-Langner, Anna Gumuła-Kawęcka, Beata Jaworska-Szulc, Rafael Angulo-Jaramillo, A. Szymkiewicz","doi":"10.24425/ace.2023.147655","DOIUrl":"https://doi.org/10.24425/ace.2023.147655","url":null,"abstract":": Accurate estimation of soil permeability is crucial in many geotechnical applications. Empirical and theoretical equations based on soil particle size distribution (PSD) oﬀer a fast and cheap way for preliminary estimation of permeability in granular soils, however the results obtained from various formulas available in the literature often show signiﬁcant discrepancies. While several comparative studies on this topic have been published, no deﬁnite conclusions can be drawn on the performance of the predictive equations in comparison with in-situ permeability measurements. Many formulas require porosity or void ratio as input parameter, which is diﬃcult to obtain for granular soil in-situ. In this study we applied 30 predictive equations to estimate permeability of sandy soil in an outwash plain deposit. The equations were divided into 5 groups, based on their structure and the required input parameters. Empirical formulas were used to estimate the expected in-situ porosity range. The obtained permeability values were compared to the results of in-situ permeameter measurements and pumping tests. Signiﬁcant diﬀerences in the results and in their sensitivity to porosity were found between the 5 groups of methods. In general, simple equations which do not include porosity were in better agreement with measurements than the other groups.","PeriodicalId":45753,"journal":{"name":"Archives of Civil Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138948385","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

Behaviour of soil-steel composite structures during construction and service: a review 土钢复合结构在施工和使用过程中的行为：综述

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147659

Alemu Mosisa Legese, M. Sobótka, Czesław Machelski, A. Różański

{"title":"Behaviour of soil-steel composite structures during construction and service: a review","authors":"Alemu Mosisa Legese, M. Sobótka, Czesław Machelski, A. Różański","doi":"10.24425/ace.2023.147659","DOIUrl":"https://doi.org/10.24425/ace.2023.147659","url":null,"abstract":": In this paper, existing knowledge on the behaviour of soil-steel composite structures (SSCSs) has been reviewed. In particular, the response of buried corrugated steel plates (CSPs) to static, semi-static, and dynamic loads has been covered. Furthermore, the performance of SSCS under extreme loading,i.e.,loadinguntilfailure,hasbeenstudied.Toinvestigatethebehaviourofthetypeofcomposite structuresconsidered,numerousfull-scaletestsandnumericalsimulationshavebeenconductedforboth arched and box shapes of the shell. In addition, researchers have examined diﬀerent span lengths and cover depths. Furthermore, to enhance the load-bearing capacity of the composite structures, various stiﬀeningelementshavebeenappliedandtested.ThereviewshowsthatthemechanicalfeaturesofSSCSs are mainly based on the interaction of the shell with the soil backﬁll. The structures, as a composite system, become appropriately stiﬀ when completely backﬁlled. For this reason, the construction phase corresponds to the highest values of shell displacement and stress. Moreover, the method of laying and compacting the backﬁll, as well as the thickness of the cover, has a signiﬁcant impact on the behaviour of the structure at the stage of operation in both the quantitative and qualitative sense. Finally, a limited number of studies are conducted on the ultimate bearing capacity of large-span SSCS and various reinforcing methods. Considerably more works will need to be done on this topic. It applies to both full scale tests and numerical analysis.","PeriodicalId":45753,"journal":{"name":"Archives of Civil Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138948539","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 water soaking on the ultimate tensile strength of polyester-based coated woven fabrics 浸水对聚酯涂层机织物极限拉伸强度的影响

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147661

引用次数: 0

Research on the dynamics of lightweight shell and spatial structures with the aid of computational fluid dynamics and a shaking table 借助计算流体动力学和振动台研究轻质壳体和空间结构的动力学特性

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147665

Agnieszka Padewska-Jurczak, Dawid Cornik, Ryszard Walentyński, Maciej Wiśniowski, Piotr Szczepaniak

{"title":"Research on the dynamics of lightweight shell and spatial structures with the aid of computational fluid dynamics and a shaking table","authors":"Agnieszka Padewska-Jurczak, Dawid Cornik, Ryszard Walentyński, Maciej Wiśniowski, Piotr Szczepaniak","doi":"10.24425/ace.2023.147665","DOIUrl":"https://doi.org/10.24425/ace.2023.147665","url":null,"abstract":": Indeterminingtheeﬀectsofactionswhendesigningroadstructures,theinﬂuenceoftheloads caused by the buﬀeting of the passing vehicles (high-cycle forces) is neglected. Taking into account the fatigue load, they can have a very large impact on the assessment of the load capacity. The subject of analysis is the pressure and velocity distributions around a truck. At the current stage of the work, it can be concluded that the gusts of passing trucks aﬀect the dynamics of the gantry structure and the elements suspended on it, such as platforms or boards. There is a strong suction force. It is possible to simplify the model in such a way that the board and the wind move with the speed of the vehicle while the truck remains stationary. Due to the lack of reliable guidelines for strength calculations of such structures, advanced Computational Fluid Dynamics (CFD) tools were used. This paper also presents a shaking table built by the authors for dynamic loading of structural models. It describes the construction of the shaking table and the kind of movement made by the table deck. It also shows a scheme of the table deck suspension on linear bearings, as well as a scheme of the table motion system.","PeriodicalId":45753,"journal":{"name":"Archives of Civil Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138950552","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

Experimental investigations of steel cold-formed moment-resisting bolted lap joints under monotonic and cyclic loading 单调和循环荷载下钢制冷弯矩抵抗螺栓搭接接头的实验研究

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147664

Rafał Budziński, L. Ślęczka

{"title":"Experimental investigations of steel cold-formed moment-resisting bolted lap joints under monotonic and cyclic loading","authors":"Rafał Budziński, L. Ślęczka","doi":"10.24425/ace.2023.147664","DOIUrl":"https://doi.org/10.24425/ace.2023.147664","url":null,"abstract":": Jointsincold-formedsteelframingstructuresareusuallydesignedasboltedlaptypeoneswith a gusset plate. Unlike the end-plate joints in hot-rolled structures, the load in such joints is transferred through shearing of the bolts and bearing of the material. The prediction of their structural properties maybeproblematicinviewofunfavourableinﬂuenceoftheholeclearanceandholeovalizationresulting from low bearing resistance of thin walls. A few experimental programmes showed that these issues lead to a diﬀerent behaviour of the whole joint comparing to common end plate type. These concerns may be particularly important for joints under variable loading, which are prone to deterioration of structural properties. The testing programme conducted by the authors was focused on their behaviour under monotonic and cyclic loading with attention to a potential drop of resistance and stiﬀness. Monotonic tests revealed quite similar course of the joints’ response. In view of high deformability of the specimens at the intermediate stage of each monotonic test, plastic moment resistances of joints were associated with the initial part of the moment-rotation curves and were multiple times lower than maximum moments obtained in the experiments. The quantities of deterioration of structural properties were determined based on cyclic tests. Drop of resistance and stiﬀness was observed for several levels of loading range, but the trend of decrease varied for each property. Application of the DIC technique allowed one to identify qualitatively and quantitatively the sources of joint deformability.","PeriodicalId":45753,"journal":{"name":"Archives of Civil Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138951704","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

Expert studies on the impact of risk on the life cycle costs of buildings 关于风险对建筑物寿命周期成本影响的专家研究

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147650

引用次数: 0

FEM modelling of screw displacement pile interaction with subsoil 螺旋位移桩与基土相互作用的有限元模拟

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147653

Paweł Więcławski, A. Krasiński

{"title":"FEM modelling of screw displacement pile interaction with subsoil","authors":"Paweł Więcławski, A. Krasiński","doi":"10.24425/ace.2023.147653","DOIUrl":"https://doi.org/10.24425/ace.2023.147653","url":null,"abstract":": Predictingthe 𝑄 – 𝑠 settlementcharacteristicsofpilesisanimportantelementinthedesigning of pile foundations. The most reliable method in evaluating pile-soil interaction is the static load test, preferably performed with instrumentation for measuring shaft and pile base resistances. This, however, is a mostly post-implementation test. In the design phase, prediction methods are needed, in which numerical simulations play an increasingly popular role. This article proposes a procedure for numerically modeling the interaction of screw displacement piles with soil using the ZSoil 2D FEM program. The procedure takes into account technological characteristics of this type of pile, such as the process of soil expansion during the screwing-in of the auger and the pressure of concrete mix after pile concreting. They signiﬁcantly aﬀect the soil stress state, which is a key parameter for the pile load capacity. Geotechnical parameters of the subsoil were adopted from CPTU probing and laboratory tests. Due to the physical complexity, a constitutive soil model “Hardening Soil” (HS) was used in the analyses. The modeling procedure was calibrated on the basis of the static load test results of several instrumented piles, which were carried out as part of the “DPDT-Auger” research project. As a result of these calibrations, generalized recommendations were derived for an entire single pile modeling process with the axisymmetric system of ZSoil program. These can be useful in the reliable FEM prediction of the 𝑄 – 𝑠 characteristics for screw displacement piles for practical engineering purposes.","PeriodicalId":45753,"journal":{"name":"Archives of Civil Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138953367","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

Shape identification of the jet-grouted column based on the thermal analysis and differential evolution 基于热分析和微分演化的喷射灌浆柱形状识别

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147673

引用次数: 0

Proactive-reactive repetitive project scheduling method – the concept of risk consideration at the project planning and execution stage 积极主动-反应式重复项目进度安排法--在项目规划和执行阶段考虑风险的概念

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147649

P. Jaśkowski, S. Biruk, Michał Krzemiński

{"title":"Proactive-reactive repetitive project scheduling method – the concept of risk consideration at the project planning and execution stage","authors":"P. Jaśkowski, S. Biruk, Michał Krzemiński","doi":"10.24425/ace.2023.147649","DOIUrl":"https://doi.org/10.24425/ace.2023.147649","url":null,"abstract":": The construction contractor is concerned with reducing the cost of the project, including reducing unnecessary downtime. This is achieved when resources are fully utilized; this means the crews work continuously moving without interruption from one location to the other. However, any disturbance in the optimally scheduled workﬂow caused by random events is likely to result in delays, interruptions in the crews work, and productivity losses. There is therefore a need for scheduling methods that allow plans to be more resilient to disruptions and ensure a reduction in downtime and implementation costs. The authors put forward a proactive-reactive approach to the schedule risk management. Proposed method makes it possible to protect schedule deadlines from the impact of risk factors by allocating time buﬀers (proactive approach). It also takes into account the measures that managers take during execution in response to delays that occur, such as changing construction methods, employing extra resources, or working overtime (reactive approach). It combines both ideas and is based on project simulation technique. The merits of the proposed approach are illustrated by a case of a repetitive project to erect a number of buildings. The presented example proves that the proposed method enables the planner to estimate the scale of delays of processes’ start and consider the impact of measures to reduce duration of processes in particular locations taken in reaction to delays. Thus, it is possible to determine the optimal schedule, at which the costs of losses associated with delays and downtime are minimal.","PeriodicalId":45753,"journal":{"name":"Archives of Civil Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138948442","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

Landslide triggered by small excavation – numerical simulations 小型挖掘引发的山体滑坡--数值模拟

IF 0.7

Archives of Civil Engineering Pub Date : 2023-12-21 DOI: 10.24425/ace.2023.147660

Michał Grodecki

{"title":"Landslide triggered by small excavation – numerical simulations","authors":"Michał Grodecki","doi":"10.24425/ace.2023.147660","DOIUrl":"https://doi.org/10.24425/ace.2023.147660","url":null,"abstract":": The main objective of this work is to present the results of numerical simulations of the landslide triggered by small excavation. In south-eastern Poland in 2019, during excavation for a gas pipeline (relatively small – maximal depth 2.7 m), a landslide was observed. Length of the landslide was about 80 m, width about 50 m, maximal depth 6.5 m. Excavation was partially buried. Observed cracks of the terrain surface were wide, up to 0.8 m. Stability of the landslide was analyzed using the proportionalreductionofthesoilstrengthparameters(c-ﬁreduction)algorithmwiththeuseofZSoil.PC Finite Element Method (FEM) system. Stability analysis of the slope before and after excavation was performed, together with analysis of the tendency of the landslide to propagate upwards. The obtained stability loss modes were compared with the results of the ﬁeld observations and a good correlation was noticed. Hypothesis that a landslide was triggered by small excavation was proved (although reasonable margin of safety was obtained for state before excavation, stability factor SF = 1 . 60). Use of residual soil strength parameters (instead of peak ones) and activation of cut-oﬀ (no tension) condition are advised. Presented methodology is open and can be used in engineering practice.","PeriodicalId":45753,"journal":{"name":"Archives of Civil Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138949432","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