Janos Szendefy

Janos Szendefy
Budapest University of Technology and Economics · Department of Geotechnics

About

13
Publications
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Introduction
Skills and Expertise

Publications

Publications (13)
Article
Full-text available
New geotechnical applications such as nuclear waste disposal, geothermal structure, thermally active landfills, and other structures dealing with temperature fluctuations in the short-term and long-term, have made it almost impossible to neglect the effect of temperature on the mechanical behavior of soils such as in conventional geotechnical desig...
Chapter
Nowadays, the development of technology and industry such as nuclear waste disposal, landfill and geothermal structures has given the temperature change in soils a high priority among research topics. It is essential to have suitable knowledge of thermal effects on soils to make efficient design of these structures. Indeed, the lack of this informa...
Article
Full-text available
Temperature change in soils and its possible effects date back to 20th century where temperature difference between laboratory and field for sampling made researchers interested in this topic. Due to development of technology and industry nowadays, new engineering applications such as nuclear waste disposal, oil extraction and pipelines, geothermal...
Conference Paper
Full-text available
In the construction industry, the adequacy of foundation and earthwork construction is most important in terms of the stability and service life of the structure. After the load bearing capacity and compactness have been determined, the measurement results depending on the given water content in the field shall be compared with the limit values spe...
Article
Full-text available
In the forthcoming years intensive renovation and reconstruction works can be expected on the banks’ freshwaters of Hungary. For the rehabilitation of the shores of Lake Velence works are starting in 2020. To support these investments there has been a demand for prefabricated reinforced concrete sheet pile walls. Realizing the opportunity, a major...
Conference Paper
Full-text available
The resilient modulus is a deformation modulus of the soil under cyclic loading. The determination of the resilient modulus is necessary for the detailed calculations of road pavements, railways or industrial floors. The modulus determined by dynamic triaxial test in the laboratory whit its limitation as grain size, long time, difficult measuring,...
Conference Paper
Full-text available
In recent years, pollution and Global warming related issues and the proven effect of fossil energy on that have lead the attention toward finding a renewable and sustainable source of energy such as Geothermal Energy. An important challenge is to determine the maximum thermal energy accurately that the geothermal system can provide. Lack of suitab...
Conference Paper
Full-text available
In recent years, pollution and Global warming related issues and the proven effect of fossil energy on that have lead the attention toward finding a renewable and sustainable source of energy such as Geothermal Energy. Ground-source heat pump (GSHP) is a well-known type of geothermal structures commonly used for space heating and cooling. The water...
Article
Full-text available
The paper focuses on the numerical back analysis of the monitored deep excavation of II. János Pál pápa square of Budapest Metro Line 4. Inclinometric measurement of diaphragm wall deformations has been compared to numerical results derived by PLAXIS using HSsmall soil model. Considering the influence of small strain stiffness of plastic soils, goo...
Article
Various simplified design procedures can be found in the literature, intended for the design of shallow foundations of lower importance buildings and pre-dimensioning. In most cases, these design procedures are based on vaguely defined soil types and parameters, and are not compatible with Eurocode. The aim of this paper is to establish a „design p...
Article
Full-text available
The grading entropy concept can be adapted to the field of geotechnics, to establish criteria for phenomena such as particle packing, particle migration and filtering, through a quantified expression of the order/disorder in the grain size distribution, in terms of two entropy-based parameters. In this paper, the grading entropy theory is applied i...
Article
Full-text available
Hungarian experience about the correlation of CPT and DPH results is summarized. A historical review of CPT-DPH and CPT-SPT correlations is presented, and the reliability of the published CPT-DPH correlations is analyzed using recent data from Hungarian geotechnical practice. Based on these data the paper defines soil types where reliable correlati...
Conference Paper
Full-text available
This study summarizes the Hungarian experiences related to correlation of CPT and DPH results. A historical review of CPT-DPH and CPT-SPT correlations is presented, and the reliability of the published CPT-DPH correlations is analyzed using recent data from Hungarian geotechnical practice. Based on these data the paper proposes formulas describing...

Projects

Projects (2)
Project
Improving the engineering properties of soils used for pavement base courses, subbase courses, and subgrades by the use of additives which are mixed into the soil to effect the desired improvement.