The investigation of wave propagation in the geological environment is warranted, and will ultimately help to provide a better understanding response subsoil excitation. Frequently utilized physical modeling represents simplification global natural system for needs static dynamic phenomena with regard time domain. determination appropriate model materials probably most important task creation. Considering that crucial medium propagation, an evaluation suitable was carried out. A plate load...

Monitoring of realized structures shows significant difference between assumed and measured values the wall displacements axial forces in geosynthetic reinforcements. This is caused by conservative approach conventional analytical methods high safety factors reinforcements that undervalue their strength parameters. Therefore, deformation properties interaction with soil environment become more important because parameters are not fully reached. Analysis quantities, such as face...

Analysis of pile bearing capacity is an important task in the investigation soil-structure interaction. The paper dedicated to prediction methods for calculation based on cone penetration test (CPTu) results, namely UniCone method, Laboratoire Central des Ponts et Chaussées method (LCPC), and involved Eurocode 7—2. A set CFA piles was tested obtain reference capacity. ability determine investigated. In each evaluation criteria using statistical tools, were ranked their performance. results...

In the Ostrava-Karvina coal district, approximately 281 dumps and 46 waste are located. These anthropogenic embankments of gangue formed at different times during nearly 200-year tradition mining in Czech parts Upper Silesian Coal Basin. The aim this publication is to analyse possibility reclaiming these dumps. Basic boundary condition reclamation material composition shape embankment. defines possible shapes bodies their rehabilitation. Waste various shapes, it may be a conical dump, pile...

Abstract The interaction between soil and building structures of various materials is defined on the basis certain assumptions, but these are shown in many cases to be not accurate from point view safe, reliable economic design engineering structures. Therefore, as part our research activities, we decided better understand transfer shear forces other materials. We focused testing a box apparatus, where 3 types tests were carried out: first stage, tested parameters 900 mm 2 apparatus; second...

Abstract In the case of realized geotechnical monitoring (GTM) reinforced retaining wall in difficult geological conditions is demonstrated important role at realisation transport infrastructures, which are often insufficient quality due to inappropriate parameters from survey works or not fitted well design structure certain conditions. This can result large deformations structure, losing stability life-time very limited and remediation work complicated expensive. There was built on...

Abstract The estimation of real geotechnical parameters is key factor for safe and economic design structures. One these are pile foundations, which require proper evaluation due to accessing more deep foundation soil because remediation work not bearable piles or broken a crucial operation. For this reason, field testing like cone penetration test (CPT), standard (SPT) dynamic (DP) realized in order receive continuous information about strata. Comparing with rotary core drilling type survey...

Cone Penetration Testing (CPT) is a quick survey in situ method through which soil parameters are not determined directly, but have to be estimated using derived relations between required parameter and resistance at the testing probe. Boundary conditions affect reliability of parameters, therefore controlled laboratory were applied intended CPT procedure analysis. Density, pycnometry, oedometer direct shear tests kinetic sand performed prove its usability as reference material for further...

Abstract Rapid development of road construction imposes requests on fast and quality methods for earthwork evaluation. Dynamic are now adopted in numerous civil engineering sections. Especially evaluation the can be sped up using dynamic equipment. This paper presents results parallel measurements chosen devices determining level compaction soils. Measurements were used to develop correlations between values obtained from various apparatuses. Correlations show that examined apparatuses...

Dynamic properties of the new materials represent actual problem, which is solved at many departments in world this time. Foam concrete (FC) a material that has wide application civil engineering structures. Currently, it's mainly used floor structures buildings but its usability can be much wider thanks to specific properties. The foam contains closed air pores, what achieves low volume weight (density) and saving inputs. It's building with good mechanical thermal conductivity same time...

Foam concrete (FC), as a mixture of cement, water, additives and technical foam, is well known for more than 30 years. It building material with good mechanical properties, low thermal conductivity, simple even high technological treatment. contains closed void pores, what allows achieving bulk density spare raw materials. Thanks to its it usable replacement conventional subbase layers the industrial floors, transport areas or part foundation structures buildings. Paper presents preparation...

Abstract Simplification of the design Mechanically Stabilized Earth wall structures (MSE or MSEW) is now an important factor that helps us not only to save a time and costs, but also achieve desired results more reliably. It quite common way in practice, designer section motorway railway line gives order for supplier geosynthetics materials. However, company has experience skills, general does review safety level its efficiency, simply incorporating into overall construction project....

Abstract For a long time, design of the square foundations has not posed problem in engineering practice. Foundations are designed on basis determining bearing capacity subsoil, where irregularities its determination oftentimes affect efficiency (economy), while possible failures resistance foundation soil rare. More important factor is resulting deformation second limit state under consideration - settlement, relative tilting and excessive deformation. The current pressure cost reduction...

Despite the various design approaches, of pile foundations is still to be verified by in-situ load tests check stage assumptions. This paper presents results study aimed at soil properties and interaction between piles soil. Calibration numerical model based on test. It represents case study, how variation characteristics acting in with technics can attain coinciding tested outputs. Moreover, this contribution effort designing more accurately limiting occurrence potential risks.

Foam concrete (FC) is utilizable in various fields of application civil engineering practice. It's most often used as a leveling sub-base the floors buildings or foundation structures fill material open spaces such unused underground structures. contains void pores so it has much lower bulk density than regular concrete. Together with saving inputs, physical and mechanical parameters low thermal conductivity, predestinates its use structural element layers. Strain modulus from second load...

The piled embankment represents one of the solutions for realization a soil body on compressible subsoil where extended settlement or insufficient stability threatens serviceability related structures. Widely adopted analytical design procedures were analyzed: Marston’s formula and Hewlett Randolph method contained in British standard BS 8006-1, German regulation EBGEO Dutch CUR 226. Using these recommendations, theoretical values individual parts load acting and, subsequently, axial strain...

Dynamic methods are adopted in numerous civil engineering sections. Especially evaluation of the earthwork quality can be speed up using these methods. The results parallel measurements selected testing devices for determining soil compaction were used comparative analysis. correlations between values obtained from various apparatuses derived to evaluate usability tested type soil. Test field represented soft subsoil road embankment consisted low plasticity clay. Correlations show that...

Continued development of infrastructure in Slovakia will open new sections motorways and expressways. The motorwayy D1 from Bratislava to Košice is being built section Lietavská Lúčka - Višňové Dubna Skala. knowledge geology has acceded the engineering geological (EG) survey, which also considered a static penetration test with piezocones. Department Geotechnics University Žilina on given made probe measurement pore pressures. This article deals vertical horizontal consolidation calculated...

Dynamic test methods are used in numerous civil engineering sections. Evaluation of the earthwork quality can be carried out effectively using these methods. Equipment utilized dynamic methods, such as Clegg Impact Soil Tester, is portable and usable cramped areas or difficult accessible places. Another benefit that apparatuses for quick controlling subsoil layers during improvement. Tester substitute common equipment terms earthworks assessment. However, boundary conditions apparatus given...

Abstract Verification of the design reinforced earth retaining structures is usually based on global and internal stability check. Beside analytical solutions, numerical modelling can simulate real behaviour structure including mutual interaction particular elements. Additionally, stress-strain relation involved in final verification together with required system. Parameters such as reinforcement stiffness or ability soil allow to calculate more realistic axial forces acting reinforcing...

A non-invasive GPR survey was carried out in order to investigate spread footings of reinforced concrete skeleton building with basement. The performed 2D geometry around support columns using a ground coupled antenna central frequency 400 MHz. processed data allow very detailed interpretation footings. This type geophysical confirms its suitability and usability such non – invasive investigation.

Abstract There are currently several national standards or regulations for the design of piled embankment, providing suitable solutions foundation transport structure on soft, high compressible subsoil, [1]. The most widely used and best-known standard is British Standard BS8006 [2], which was confronted with another analytical methodologies (Ebgeo, CUR). Today’s popularity versatility FEM numerical models brings many advantages, methods cannot achieved, but must be verified by proposed...

Abstract Currently, can be seen a new trend in engineering geological survey, where laboratory analysis are replaced by situ testing methods, which more efficient and cost effective, time saving too. A regular survey cannot provided simple core drillings, macroscopic description (sometimes very subjective), then geotechnical parameters established based on indicative standardized values or archive from previous standards. The is trustworthy if composed of in-situ supplemented indirect...

Abstract Nowadays many problems concerning industrial floors or in shopping centres occurred when local geological characterization is not adequately considered by structural designers, material selection evaluated properly and time for future stability, consolidation of soft organic subsoil laid active zone taken into account during design evaluation. Similar occur flooding effects on subbase layers cause a new settlement the upper floor structure. Generally speaking, majority these...