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Electrofusion tensometry applied to the research of engineering structures

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Zamiar Z., Surowiecki A.
Logistics and Transport
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2022
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vol. 53-54
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issue 1-2
119-132
EN
The subject of the article concerns the problem of estimating the location of a slip line in a massif with a vertical retaining wall made of reinforced soil, in which the limit state of active pressure was induced. The task is solved experimentally, on the basis of measured unit strains in the reinforcement inserts, with the use of electrofusion strain gauges. The inserts are located in horizontal layers. The slip curve is formed by the points where the maximum normal stresses occur in the reinforcement inserts. This curve cuts off the fragment wedge that is being sought from the plane of the retaining wall. The slip line divides the area of the massif into two zones: active (splinter wedge) and passive, in which the reinforcement inserts are anchored. The test stand is presented, the technique of measuring the deformation of the reinforcement and the method of estimating the location of the slip surface are discussed.
2
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Reinforced Soil as Road Subsoil Strengthening (Model Investigation)

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Surowiecki A., Zieliński M.
Logistics and Transport
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2016
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vol. 29
65-70
EN
The issue of distortion and load bearing capacity of non-cohesive, monogenic and two layer soil, with vertical reinforcement, was analyzed. Separate inserts, single, double, triple and complex were used. Resistance parameters, in function of their characteristics, referring to reinforcement inserts, were evaluated. Soil base bearing capacity was calculated, on the basis of the research results of large size physical models distortion state, constructed on laboratory scale.
3
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Effectiveness of road embankment reinforcement in the light of model tests on a laboratory scale

100%
Zamiar Z., Surowiecki A.
Logistics and Transport
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2022
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vol. 55-56
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issue 3-4
49-70
EN
The subject of the article concerns road embankments made of reinforced soil. The results of the analysis of the effectiveness of the reinforcement of these structures as a function of selected variable factors concerning the soil medium and the parameters of reinforcement inserts are given. The efficiency analysis was carried out on the basis of measurements of the horizontal unit pressure made on a physical model of a soil massif with a vertical wall of reinforced soil. The large-scale model was constructed on a laboratory scale. The article ends with a summary containing conclusions of a cognitive and practical nature.
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Parameter of Cooperation of Composite Components in Views about Vertical Wall from Reinforced Soil

100%
Zamiar Z., Surowiecki A., Saska P.
Logistics and Transport
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2019
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vol. 44
77-84
EN
The publication considers reinforced soil in relation to the construction of retaining walls in communication construction. The basic elements determining the cooperation of reinforcement inserts with the ground centre are discussed, depending on the features characterizing the components of the composite. The method and selected results of tests performed on a massif model with a vertical wall made of non-cohesive ground have been presented. A calculation example is given concerning the internal dimensioning of the reinforcement of the considered massif model, assuming the work of inserts without slipping in the ground centre. The concept of reinforcement co-operation indicator with the ground centre was introduced and a dependence to calculate its value was developed. The values of co-operation indicators: general and partial, concerning individual measurement levels of the model have been presented appropriately.
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