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Full-Text Articles in Engineering
Developing Lrfd Side Shear And End Bearing Resistance Factors For Design Of Axially Loaded Drilled Shafts In Soil Containing Caliche Layers Using The Monte Carlo Approach, Visar Farhangi
UNLV Theses, Dissertations, Professional Papers, and Capstones
Conventional design and construction procedures of the drilled shafts (bored piles) are mainly developed for homogenous soils in the absence of highly cemented layers. However, the presence of competent and cementitious layers such as caliche deposits in soil profile can affect the resistance and settlement of pile foundations. This study concerns with the uncertainties on the resistance estimation of axially loaded drilled shafts in interaction with caliche layers The prime objective is to calibrate the side shear and end bearing resistance factors of axially loaded drilled shafts based on the soil characteristics of Nevada. The load-settlement responses of axially loaded …
Effect Of Caliche On The Behavior Of Drilled Shafts, Rouzbeh Afsharhasani
Effect Of Caliche On The Behavior Of Drilled Shafts, Rouzbeh Afsharhasani
UNLV Theses, Dissertations, Professional Papers, and Capstones
The current design methodology for a drilled shaft foundation in cohesionless soil is primarily based on ultimate skin friction values of drilled shafts. In order to obtain these values for each soil type, load tests such as Osterberg test are designed and performed. The Osterberg test layout is designed to estimate the capacity of drilled shaft by applying an upward load during the test and then calculating the downward capacity assuming the upward and downward capacity are the same. This method is appropriate for soils not containing caliche layers because caliche layers bond to the shaft and prevent skin friction …
Analysis Of A Caliche Stiffened Pile Foundation, Richard C. Stone Jr.
Analysis Of A Caliche Stiffened Pile Foundation, Richard C. Stone Jr.
UNLV Theses, Dissertations, Professional Papers, and Capstones
Cemented carbonate deposits (known locally as "caliche") in Las Vegas have been used to support shallow and deep foundations with relatively high bearing pressures compared to soil. Most high rise structures in Las Vegas are founded on either a large mat or a long pile foundation. Recently, a new foundation type consisting of a short pile system bonded to shallow cemented layers was utilized for a large high rise building in Las Vegas and settlements during construction were recorded. The bonding of caliche layers together with short piles forms a caliche stiffened pile (CSP) foundation. The CSP foundation is unique …