A5049313272- Geotechnical Engineering and Analysis
- Seismic Performance and Analysis
- Geotechnical Engineering and Soil Stabilization
- Landslides and related hazards
- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Soil Mechanics
- Seismology and Earthquake Studies
- Dam Engineering and Safety
- Soil and Unsaturated Flow
- Seismic Waves and Analysis
- Geotechnical and Geomechanical Engineering
- Masonry and Concrete Structural Analysis
- Structural Health Monitoring Techniques
- Tree Root and Stability Studies
- Rock Mechanics and Modeling
- earthquake and tectonic studies
- Tunneling and Rock Mechanics
- Material Properties and Failure Mechanisms
- Engineering and Agricultural Innovations
- Structural Engineering and Vibration Analysis
- Hydraulic and Pneumatic Systems
- Cryospheric studies and observations
- Coastal and Marine Dynamics
- Earthquake and Disaster Impact Studies
- Engineering and Environmental Studies
University of Calabria
2007-2023
University of Calabar
2007-2011
The Central Italy earthquake sequence initiated on 24 August 2016 with a moment magnitude M6.1 event, followed by two earthquakes (M5.9 and M6.5) 26 30 October, caused significant damage loss of life in the town Amatrice other nearby villages hamlets. significance this led to major international reconnaissance effort thoroughly examine effects disaster. Specifically, paper presents evidences strong local site (i.e., amplification seismic waves because stratigraphic topographic that leads...
The Central Italy earthquake sequence nominally began on 24 August 2016 with a M6.1 event normal fault that produced devastating effects in the town of Amatrice and several nearby villages hamlets. A major international response was undertaken to record this disaster, including surface faulting, ground motions, landslides, damage patterns structures. This work targeted development high-value case histories useful future research. Subsequent events October exacerbated previously affected...
In this paper, the kinematic approach of limit analysis is used to analyse influence groundwater on bearing capacity shallow foundations. Analytical expressions are derived allowing strip footings resting a soil where water table at some depth below footing base be calculated. Results from these compared with those obtained using other theoretical solutions available in literature. Moreover, parametric study carried out illustrate effects submergence footing. The importance discussed, and...
A good‐working balance between simplicity and reliability in assessing seismic slope stability is represented by displacement‐based methods, which the effects of deformability ductility can be either decoupled or coupled dynamic analyses. In this paper, a 1D lumped mass “stick‐slip” model developed, accounting for soil heterogeneity non‐linear behaviour, with base sliding mechanism at potential rupture surface. The results preliminary calibration show good agreement frequency‐domain site...
The evaluation of natural periods and related mode shapes earth dams represents a critical issue when performing structure-specific probabilistic seismic hazard analyses (PSHA). identification scenario events, using techniques such as disaggregation the hazard, calculation suitable target spectrum for ground motion selection scaling procedures (e.g., conditional mean spectrum), require at least knowledge fundamental period system. This problem can be solved analytical, numerical, and/or...
This paper deals with the one-dimensional consolidation of unsaturated soils due to application external loads. A simple equation is derived that enables one predict rate settlement shallow foundations time. uses constitutive relationships proposed by Fredlund and Morgenstern define volume change soils, relates average degree for both water air phases. series examples shown demonstrate feasibility usefulness equation. Key words: consolidation, soil, settlement.
This paper presents a theoretical study on the seismic response of alluvial valleys. The considered model consists two‐dimensional elastic inclusion arbitrary shape embedded in stiffer half‐plane excited by vertically or obliquely incident SH waves. Computations are conducted using procedure based boundary element method. As known, this numerical technique is well suited to deal with wave propagation infinite media as it avoids introduction fictitious boundaries and reduces one dimensions...
We synthesize engineering procedures for estimating the seismic performance of major flood-control levees as given in guidelines documents and design codes from Canada (British Columbia), China, Italy, Japan, New Zealand, United States. Some carry weight law whereas compliance is optional others. Most combine a probabilistic ground motion characterization with deterministic assessments levee (uncoupled approach). Ground motions are typically described using peak accelerations reference site...
Geosynthetic-reinforced soil structures are often used to support shallow foundations of various infrastructure systems including bridges, railways, and highways. When such infrastructures located in seismic areas, their performance is linked the bearing capacity foundation. Various approaches can be calculate this quantity as analytical solutions advanced numerical models. Building upon a robust upper bound limit analysis, we created database comprising 732 samples. The was then train test...
The performance of a large number critical infrastructure systems needs to be periodically re-evaluated. This is especially so when such are located in seismic areas and subjected ageing effects. Seismic re-evaluations typically performed using numerical response history analyses based on geotechnical model the hazard-consistent ground motions. We depart from Viadotto Italia (the tallest multi-span bridge Italy, high-seismicity region) draw best practices how construct robust derive...
During the earthquake of 23 November 1980, historic centre village San Michele di Serino in Southern Italy was almost completely destroyed. The site investigations carried out after revealed subsoil to consist fundamentally compressible silty soils with interbedded gravelly layers. To improve poor ground conditions prior reconstruction, it decided use vibro-compaction method installation stone columns (vibro-replacement technique). In this study, degree soil improvement achieved at is...