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Showing 1 to 4 of 4 for “"downhole array"”.
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Seismic Site Response and Extraction of Dynamic Soil Behavior From Downhole Array Measurements
The presence of deep unconsolidated deposits in the upper Mississippi Embayment has an important impact on anticipated surface motions. PSHA-NL, probabilistic seismic hazard analysis with nonlinear site effects, can be used to estimate seismic hazard with the effect of deep deposits. This thesis …
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Seismic site response analysis and extraction of dynamic soil behavior and pore pressure response from downhole array measurements
… soil behavior and pore pressure response from downhole array measurements. Downhole arrays are increasingly being deployed to measure motions at the ground surface and within the soil profile, with some arrays instrumented to measure the pore pressure response throughout the soil profile. The …
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Shear Modulus Degradation of Liquefying Sand: Quantification and Modeling
… This thesis uses ground motions recorded by an array of downhole accelerometers on Port Island, Japan, during the 1995 Kobe Earthquake, to quantify the shear modulus of sand as it liquefies. It has been shown that the shear modulus of sand decreases significantly as it liquefies, apparently …
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Probabilistic Site Response Analysis and Soil-Structure Interaction: A Data Science and Statistical Investigation Utilizing a Comprehensive Dataset in Japan and the US
… using data from a well-instrumented geotechnical downhole array located in Japan, and the results of 46,200 NL finite element (FE) analyses are presented. The findings demonstrate that increasing the number of soft realizations and implementing higher levels of earthquake intensity leads to higher …