- Fault detection using microtremor data HVSR-based approach) and electrical resistivity surve
- Marzieh Khalili ; Abdul Vahed Mirzakurdeh
- Book Title / Journal: Journal of Rock Mechanics and Geotechnical Engineering
- Year: 2019 , Volume: 11
- Rock Mechanics
- Keywords: Microtremor ; Horizontal to vertical spectral ratio HVSR) ; Electrical resistivity ; Sediment thickness ; Hidden fault
- Abstract
The faults and fractures are known as two of the most important parameters in earthquake occurrence. During the construction in urban areas, faults and fractures may be covered in depth and thus are not visible at the ground surface. In this context, non-invasive geophysical prospecting methods (microtremor and geoelectrical methods) and borehole data were used to detect subsurface geological structures hidden faults) in a suburb of Shirz in Iran. The horizontal to vertical spectral ratio HVSR) method was used to obtain the dynamic parameters (predominant frequency and resonance amplitude) f the soil, to detect hidden faults. The results show that the abrupt changes in the sediment thickness and predominant frequencies at a specific direction (NW-SE) can be related to the displacement of a nearly vertical fault with NW-SE trend. In addition, the electrical resistivity method using continuous resistivity profiling (CRP) and Schlumberger arrays was employed to detect a hidden fault and the results were compared with previous data. The obtained results of both arrays illustrate the presence of a nearly vertical fault with NW-SE trend in the region. Comparison of all results shows that the detected faults by both methods are consistent with each other. Therefore, it can be conclusive that combination of the two methods is a useful and reliable approach to study and detect hidden faults. PDF |
- Assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring data
- Donatella Sterpi ; Adriana Angelotti ; Omid Habibzadeh-Bigdarvish ; Daniel Jalili
- Book Title / Journal: Journal of Rock Mechanics and Geotechnical Engineering
- Year: 2018 , Volume: 10
- Rock Mechanics
- Keywords: Heat transfer ; Monitoring data ; Near-surface geothermal energy ; Energy geostructure
- Abstract
Thermo-active diaphragm walls have proved their effectiveness in the thermal conditioning of buildings and infrastructures. However, some aspects still need to be investigated in order to tailor methods and tools for an accurate prediction of their energy and structural performance. In this perspective, some issues are addressed that concern the definition of models for the numerical analysis, in particular issues about the modelling of geometry and thermal boundary conditions. Taking advantage of a monitoring programme on a real full-scale structure, this research focuses on the assessment of heat transfer process and thermal response of diaphragm wall and soil mass on the basis of field data. Understanding of the heat transfer process contributes to the definition of the time-dependent thermal boundary conditions at the excavation side. From the analysis of thermal gradients in the wall, the condition at the excavation side is recognised as a major factor that influences the heat transfer process, governing the direction of the heat flux in different seasons of operation of the geothermal system. PDF |
- Evaluation of strength parameters of Masjed – Soleyman Dam clay core using CPTU
- A. Khalili ; F. Jafarzadeh
- 2nd International Symposium on Cone Penetration Testing, Huntington Beach, CA, USA. Volume 2&3: Technical Papers, Session 3: Applications, Paper No. 3-51
- Year: 2010
- Site Characterization & In-situ Testing (General)
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- CPT in unsaturated soils using a new calibration chamber
- M. Pournaghiazar ; A.R. Russell ; N. Khalili
- 2nd International Symposium on Cone Penetration Testing, Huntington Beach, CA, USA. Volume 2&3: Technical Papers, Session 2: Interpretation, Paper No. 25
- Year: 2010
- Site Characterization & In-situ Testing (General)
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- Interpreting CPT results in unsaturated sands
- A.R. Russell ; M. Pournaghiazar ; N. Khalili
- 2nd International Symposium on Cone Penetration Testing, Huntington Beach, CA, USA. Volume 2&3: Technical Papers, Session 2: Interpretation, Paper No. 36
- Year: 2010
- Site Characterization & In-situ Testing (General)
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- Estimación de la velocidad del hundimiento diferencial en el Municipio de Irapuato, Gto; México
- Norma Liliana Cruz Ortiz ; María Alejandra Rivera Trasgallo ; José de Jesús Torres García ; Norma Claudia Calderón Rosas
- Pan-American Conferences on Soil Mechanics and Geotechnical Engineering (PCSMGE) - XVI Pan-American Conference on Soil Mechanics and Geotechnical Engineering (XVI PCSMGE)
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- Green Infrastructure ; Structural Geology ; Geoenvironmental Engineering
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- Performance Based Design with 3D Dynamic SSI and FSI Analysis for Large Buried Water Storage Reservoirs
- ChengPhoebe ; TehraniPaymanKhalili ; McHenryMichele ; BennettWally ; AndersonDonald ; MitchellRobert
- TC 203 Conferences in Earthquake Engineering - 3rd International Conference on Performance-based Design in Earthquake Geotechnical Engineering (Vancouver 2017)
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- Geotechnical Earthquake Engineering
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- STUDY ON PIPE-SOIL INTERACTION AND PARAMETERS OF TRENCH FOR SHALLOW BURIED PIPELINES
- LiLiyun ; LiJinlong ; LiXiuju
- TC 203 Conferences in Earthquake Engineering - 3rd International Conference on Performance-based Design in Earthquake Geotechnical Engineering (Vancouver 2017)
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- Soil Structure Interaction ; Underground Structures
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- Mechanical characterisation of a highly friable weak sandstone
- M. Khoshini ; A. Khoshghalb ; H. Moghaddasi ; N. Khalili
- Australia - New Zealand Conferences on Geomechanics - 13th Australia New Zealand Conference on Geomechanics
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- Soil Mechanics
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- Numerical Modeling and Performance of Two Test Embankments Based on Surcharge Preloading, PVDs and Vacuum: Drain-to-Drain and Airtight Membrane
- Norma Patricia López-Acosta ; Alejandra Liliana Espinosa-Santiago ; Víctor Manuel Pineda-Núñez
- Pan-American Conferences on Soil Mechanics and Geotechnical Engineering (PCSMGE) - XVI Pan-American Conference on Soil Mechanics and Geotechnical Engineering (XVI PCSMGE)
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- Natural attenuation in a residual soil from southern Brazil contaminated with diesel and biodiesel mixtures
- AntonioThom ; CleomarReginatto ; GabrielCavelho ; LilianeRebechiMeneghetti ; FernandoSchnaid
- Regional Conferences - 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering 64th Canadian Geotechnical Conference, October 2-6, 2011, Toronto, Ontario, Canada
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- Residual Soils ; Contaminant Transport
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- A general three dimensional bounding surface model for sand
- M.D. Liu ; N. Khalili ;
- Australia - New Zealand Conferences on Geomechanics - 10th Australia New Zealand Conference on Geomechanics
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- Constitutive Modeling / Soil Behavior ; Soil Behavior Modeling ; Soil Mechanics
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- Numerical implementation of a hydro-mechanical model for partially saturated soils
- M.A. Habte ; N. Khalili ;
- Australia - New Zealand Conferences on Geomechanics - 10th Australia New Zealand Conference on Geomechanics
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- Numerical & Constitutive Modeling
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- Distributed tilt sensors for an early warning monitoring of earthquake-induced landslides and slope failures
- WangLin ; NishieShunsaku ; SuLing ; UchimuraTaro ; TaoShangning ; TowhataIkuo ; HuangDong ; QiaoJianping ; ShiLili ; ZhongHuajie
- TC 203 Conferences in Earthquake Engineering - 3rd International Conference on Performance-based Design in Earthquake Geotechnical Engineering (Vancouver 2017)
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- Landslides ; Slope Stability ; Geotechnical Earthquake Engineering
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- An elasto-plastic constitutive model for the analysis of bonded geomaterials
- H. Moghaddasi ; M. Khoshini ; A. Khoshghalb ; N. Khalili
- Australia - New Zealand Conferences on Geomechanics - 13th Australia New Zealand Conference on Geomechanics
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- Constitutive Modeling / Soil Behavior
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