The selection of sealing technologies of the subsoil and hydrotechnical structures and quality assurance

Skutnik, Zdzisław; Bajda, Marek; Lech, Mariusz

doi:10.1515/eng-2019-0050

Cited by 8 publications

(5 citation statements)

References 9 publications

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“…The values found are comparable to those of other studies, despite some variations [ 7 , 35 ]. A direct relationship between porosity and permeability has been introduced by some researchers [ 4 , 38 , 52 , 53 , 54 , 55 , 56 , 57 , 58 ]. The relationship between the permeability coefficient value and the porosity of the concretes is illustrated in Figure 6 .…”

Section: Discussionmentioning

confidence: 99%

An Experimental Assessment of the Water Permeability of Concrete with a Superplasticizer and Admixtures

2020

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This study presents a flow pump technique usually used for evaluating the permeability of soils, which was, for first time, applied to measure the water permeability of concrete. Additionally, a new easy-to-apply method to determine permeability is proposed, based on a modification of Valenta’s formula. In the calculations, the apparent air content of concrete mixes was taken into account. An additional purpose of the conducted research was to determine the influence of a new generation of polycarboxylate superplasticizer and chemically active admixtures on the permeability, compressive strength, and other properties of concrete. The following four types of concrete were tested: concrete without admixtures, concrete with an admixture to increase the compressive strength, concrete with a superplasticizer, and concrete containing two admixtures simultaneously. The results showed that the proposed method allows to obtain reliable measurements within a very short period of time. The obtained results confirmed that new method may be very useful in engineering practice, particularly in terms of the watertightness of hydrotechnical concretes and the properties of the concretes used in bridge construction, underground parts of office buildings, or sealed tanks.

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Section: Discussionmentioning

confidence: 99%

An Experimental Assessment of the Water Permeability of Concrete with a Superplasticizer and Admixtures

2020

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“…In each case, the method of modernization is selected on a case-by-case manner so that its effectiveness is maximized and does not change the hydrogeological conditions of the subsoil, thus preserving the regime of water and soil conditions as well as the stability of embankments and other structures. Figure 15 shows an example of a sealing scheme for both the subsoil and the embankment [85]. The author's project described in the results, in addition to the above-mentioned aspects regarding the protection of waterfronts and the accompanying natural environment, takes into account the need to improve the process of water retention in the river basin [86][87][88].…”

Section: Discussionmentioning

confidence: 99%

Resilience in Urban and Architectural Design—The Issue of Sustainable Development for Areas Associated with an Embankment

et al. 2023

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The dynamically changing world poses new challenges to urbanized areas, e.g., related to water management in the architectural and urban context. Improving retention and strengthening blue-green infrastructure can be based on technical, semi-natural and natural methods, which are less invasive. Various forms are used in the city space: flow control, detention, retention, filtration, infiltration, and treatment. The implementation of the green order strategy and shaping sustainable development in the context of designing the city’s resilience is associated with shaping spatial policy and urban planning assumptions for the transformation of public spaces and new investments in urbanized areas in crisis. The shaping of waterfronts in the city and green and blue infrastructure significantly shape the parameters of the environment and the regenerative capacity of the urban ecosystem. The aim of this work was to show the relationship between the problem of embankments and the possibilities of developing space in their proximity, including areas exposed to the risk of flooding. The relationships determined by the goal were verified in comparative studies, a repeatable method of collecting, processing, analyzing, and interpreting the obtained data was used. The issue was presented in a broader context of flood risk and water management in the area of Lake Zegrze, collisions and spatial conflicts were analyzed. The results are presented in the context of detailed water management data for the complex of Riva Zegrze facilities, which is a model example regarding the sustainable development of areas on embankments, considering their specific floodplain development possibilities. The effects of the research allowed for the formulation of conclusions, including in terms of implementation, in the field of urban and architectural design for areas associated with an embankment.

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“…The purpose of the tests was also to investigate the depth of the DSM columns and confirm the sealing continuity. For a more accurate diagnosis, direct soundings could then be used [48]. The interpretation and testing results are presented in Figures 14 and 15.…”

Section: Surface Resistivity Measurements-recognition Of Subsoil and mentioning

confidence: 99%

Applications of Electrical Resistivity Surveys in Solving Selected Geotechnical and Environmental Problems

et al. 2020

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Standard test methods may not be suitable or sufficient for determining the geotechnical conditions of a structure’s subsoil and the effects of the designed structures on the environment. Geophysical test methods, validated with other methods, may prove useful. In recent years they have found many new applications in engineering practice, both geotechnical and environmental. The advantages of geophysical methods include the non-destructive and non-invasive nature of the tests, their low costs and quick results, as well as compatibility with different materials, including soils, solid rocks, wastes and anthropogenic formations. The paper presents the analysis of laboratory and field investigations including research in a modified oedometer, resistivity chamber, electrical resistivity tomography (ERT) and resistivity cone penetration test (RCPT). Laboratory tests allowed for the assessment of the degree of saturation and porosity of sandy and clayey soils. The tests were carried out on saturated and unsaturated soil samples and allowed for the determination of some relationships between electrical conductivity and porosity. The proposed equations were used to assess parameters in in situ studies using RCPT tests and showed good agreement with reference values based on undisturbed soil samples. ERT tests confirmed the usefulness of electrical measurements in the quality assurance of subsoil and hydrotechnical structures. The tests showed weakening zones in the levee body, discontinuity of the vertical sealing system on the modernized section of the embankment, and location of the top of clay deposits.

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The selection of sealing technologies of the subsoil and hydrotechnical structures and quality assurance

Cited by 8 publications

References 9 publications

An Experimental Assessment of the Water Permeability of Concrete with a Superplasticizer and Admixtures

An Experimental Assessment of the Water Permeability of Concrete with a Superplasticizer and Admixtures

Resilience in Urban and Architectural Design—The Issue of Sustainable Development for Areas Associated with an Embankment

Applications of Electrical Resistivity Surveys in Solving Selected Geotechnical and Environmental Problems

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