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Showing 1 to 13 of 13 for “"Standard Penetration Test"”.
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Standard penetration test correlations for Las Vegas soils
Standard penetration tests (SPT) are used to approximate soil properties including the consistency, cohesion and the internal angle of friction. Due to the frequency of cemented sands, gravel and clay in the Las Vegas Valley, the generally accepted SPT correlations vary from actual local …
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Energy transfer and grain size effects during the Standard Penetration Test (SPT) and Large Penetration Test (LPT)
The Standard Penetration Test (SPT) is the most widely used in-situ soil test in the world. "Large Penetration Test" (LPT) is a term used to describe any scaled up version of the SPT. Several types of LPT have been developed around the world for the purpose of characterizing gravel deposits, as SPT …
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Reavaliação de método semi-empírico de previsão de capacidade de carga de estacas a partir de banco de dados
… capacity of piles of different types using the Standard Penetration Test. This was possible by the use of a data bank containing 172 loading tests stored in a microcomputer. The use of a microcomputer made possibile the study of the use of other SPTs for the point resistance besides those …
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Estudo de correlações entre os ensaios de penetração estática e dinâmica e suas aplicações ao projeto de fundações profundas
The ever present interest in applying field tests to determine the bearing capacity of foundations, particularly deep foundations, explains the necessity to check, or modify, existing correlations between the "standard penetration test" and the "diepsondering". Considerations are made concerning …
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Estudo da resistência ao cisalhamento e densidade relativa das areias e correlações com o SPT
Analysis of the laboratory tests developed to choose the procedure for the determination of ''maximum" and "minimum" density of sand and finishes, adopting "dynamic compactation'' and the Kolbuszewski 's Method'' to obtain the maximum and minimum density respectively. The second part, the …
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Load and resistance factor design of drilled shafts in shale using SPT and TCP measurements
… notoriously difficult to effectively sample and test, which poses practical problems for those tasked with designing drilled shafts in such materials. The difficulty in sampling shale has lead geotechnical engineers to consider in-situ tests, such as the Standard Penetration Test (SPT) and the …
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Assessment of the Cyclic Strain Approach for the Evaluation of Initial Liquefaction
… the cyclic strain approach has not yet been standardized for field evaluations. The primary objective of this thesis is to use published databases of 415 shear-wave velocity and 230 Standard Penetration Test liquefaction field case histories to investigate the performance of the cyclic strain …
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Development of an Energy-based Liquefaction Evaluation Procedure
… to liquefaction is correlated to an in situ test metric (e.g., normalized standard penetration test N-value, N1,60cs, normalized cone penetration tip resistance, qc1Ncs, or normalized small strain shear wave velocity, Vs1). Although rarely used in practice, the strain-based procedure is …
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Movements of footings and retaining walls
… values. Eleven of the methods are based on Standard Penetration Test Results, while Schmertmann’s method is based on Cone Penetration Test Results. The study showed that methods which are more accurate tend to underestimate settlements about half of the time; while those which are more …
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Location Of Sinkhole Confining Breach Using Groundwater Flow Patterns Derived From Cone Penetration Testing
… that have occurred in the area. Use of Cone Penetration Test (CPT) soundings, in conjunction with conventional soil borings are becoming more common in the assessment of subsurface soil conditions in the vicinity of sinkhole-related ground surface. The penetration resistance data by CPT can …
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An evaluation of the utility of four in-situ test methods for transmission line foundation design
… examines four existing in-situ soil strength testing methods; standard penetration test (SPT), the cone penetrometer (CPT), the flat plate dilatometer (DMT), and the pressuremeter (PMT). Soils data were collected at eight separate sites using each of the devices. The test sites were chosen to …
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Evaluation of liquefaction potential of silty sand based on Cone Penetration Test
… a rational basis for the use of the Cone Penetration Test (CPT) to predict Iiquefaction resistance in these materials. The study is primarily experimental, relying on laboratory and field testing and the use of a unique, large scale calibration chamber. The calibration chamber allows the …
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An investigation of liquefied shear strength using novel centrifuge tests, direct simple shear tests, and field case histories
… (2) element-level direct simple shear testing; and (3) novel centrifuge modeling. Corresponding results were compared and discussed. Field cases of flow liquefaction provide valuable information for liquefied shear strength because those failures provide realistic estimates of su(liq). …