Results 11 to 20 of about 166 (143)

Effect of penetration rate and filter location on piezocone test results

KSCE Journal of Civil Engineering, 2004
The effects of penetration rate on the piezocone penetration and dissipation test results with filter element locations were experimentally studied. Six kinds of piezocone tests were conducted for the U1 (filter element at the cone tip) and U2 (filter element behind the cone base) miniature piezocone penetrometers and the K33 specimen (mixture of 33 ...
exaly   +2 more sources

Site observations of weathered granitic soils subjected to cementation and partial drainage using SCPTU

Journal of Rock Mechanics and Geotechnical Engineering, 2023
Because of the cementation inherited from the parent rock, weathered granitic soil is usually susceptible to disturbance, which poses considerable challenges for laboratory characterization.
Xianwei Zhang, Xinyu Liu, Ran An, Xinming Li   +3 more
doaj   +1 more source

Development and performance testing of in-flight miniature CPTu equipment on ZJU-400 centrifuge

Yantu gongcheng xuebao, 2022
The piezocone penetration test (CPTu) is an important in-situ soil testing method widely used in conventional 1g condition in engineering practices.
ZHOU Yan-guo 1, 2, 3, WANG Zhi-nan 1, 2, 3, MA Qiang 1, 2, 3, LIANG Tian 4, CHEN Yun-min 1, 2, 3
doaj   +1 more source

The Use of CPTU and DMT Methods to Determine Soil Deformation Moduli—Perspectives and Limitations

Studia Geotechnica et Mechanica, 2023
The article presents the concept of determining constrained modulus—M0, initial shear modulus—G0, Young modulus—E, and rigidity index—IR on the basis of parameters from static penetration tests CPTU (Piezocone Penetration Testing), SCPTU (Seismic ...
Młynarek Z., Wierzbicki J., Lunne T.
doaj   +1 more source

Dominant factors in MiniCone, CPT and pile correlations: A data‐based approach

Deep Underground Science and Engineering, Volume 2, Issue 4, Page 346-358, December 2023., 2023
Using a database comprising MiniCone and cone penetration test (CPT) records in the field and physical modeling with a variety of cone diameters, case study records have been obtained from 140 tests compiled from data from 26 sources. The sources include the results of 20 physical modelings and field data from six sites in 10 countries.
Seyed Sajad Shirani, Abolfazl Eslami, Amirhossein Ebrahimipour, Moses Karakouzian   +3 more
wiley   +1 more source

The effect of heterogeneities and small cavities on levee failures: The case study of the Panaro levee breach (Italy) on 6 December 2020

Journal of Flood Risk Management, Volume 16, Issue 2, June 2023., 2023
Abstract This article discusses the levee failure that occurred on 6 December 2020 at Castelfranco Emilia, near Modena (Italy), showing that it cannot be explained without assuming the presence of local heterogeneities or a small cavity. The possible presence of these defects is supported by evidence derived from historical data and site observations ...
Francesca Ceccato, Paolo Simonini
wiley   +1 more source

Sedimentary facies characterization through CPTU profiles: An effective tool for subsurface investigation of modern alluvial and coastal plains

Sedimentology, Volume 70, Issue 4, Page 1302-1327, June 2023., 2023
ABSTRACT Cone penetration tests, a method that is typically used to determine the engineering properties of soils, can be used as an effective tool for refined subsurface stratigraphic investigations of alluvial and coastal plains, aside from the geographic location.
Bruno Campo, Luigi Bruno, Alessandro Amorosi   +2 more
wiley   +1 more source

Deep Hydraulically‐Active Fractures in Sensitive Clay Deposits: Implications for Groundwater Flow and Slope Stability

Geophysical Research Letters, Volume 50, Issue 9, 16 May 2023., 2023
Abstract Landslides in sensitive post‐glacial marine clays are one of the major geological hazards in Canada, Norway and Sweden. Current hydrogeological conceptual models used for slope stability analyses in these deposits consider simple groundwater flow conditions within a homogenous, isotropic, massive clay deposits, where fractures are surficial ...
Nathan L. Young, Julian Andres Ospina, Jean‐Michel Lemieux, Pascal Locat   +3 more
wiley   +1 more source

Probabilistic approach for seismic microzonation integrating 3D geological and geotechnical uncertainty

Earthquake Spectra, Volume 39, Issue 1, Page 310-334, February 2023., 2023
A novel probabilistic methodology for regional seismic site characterization is proposed and applied to a region with highly heterogeneous surficial geology and varying soil sediment thickness and stiffness. The method combines various sources of geological and geotechnical uncertainties to develop a three‐dimensional (3D) shear‐wave velocity (Vs ...
Mohammad Salsabili, Ali Saeidi, Alain Rouleau, Miroslav Nastev   +3 more
wiley   +1 more source

Study on the disturbance and recompression settlement of soft soil induced by foundation pit excavation

Rock and Soil Mechanics, 2021
The deep excavation of foundation pit in soft soil layer will cause serious disturbance to the soil at the bottom of the pit. Affected by excavation disturbance, the mechanical properties and stress state of the soil at the bottom of the pit will change.
LU Tai-shan, LIU Song-yu, CAI Guo-jun, WU Kai, XIA Wen-jun   +4 more
doaj   +1 more source