Expedited Site Characterization geophysics: Geophysical methods and tools for site characterization

Goldstein, N.E.

doi:10.2172/10149236

Cited by 4 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of geophysical methods for subsurface characterization study of a dam site is increasingly becoming popular all over the world and has the possibility to give an image of the subsurface to the geologists and geotechnical engineers (Benson et al, 1984;Goldstein, 1994;Benson andYuhr, 1995, 2002). The subsurface characterization of the dam site including bedrock depth, rock type, layer boundaries, groundwater flow, locating fractures, weakness zones, detecting cavities caused by sinkholes will be detected using the electrical resistivity tomography (ERT), Ground Penetrating Radar (GPR) and Seismic Refraction Tomography (SRT) Method.…”

Section: Overviewmentioning

confidence: 99%

Geotechnical Investigation of Namar Dam Site by Using Geophysical Tools, Riyadh, Saudi Arabia

2017

IJSR

View full text Add to dashboard Cite

Abstract:Recently, some areas in the Kingdom witnessed collapse of dams, and in others enormous amount of water are being wasted due to the leakage across the dams due to defective structure (cracks and fissures) and bedrock cavities. Therefore, the necessity for geotechnical assessment of the dams and their sites has become very vital and is considered a fundamental step towards the proper protection and long-term performance of these dams. In this respect, geophysical tools are often the most cost-effective and rapid means because of their site accessibility, portability, noninvasiveness, and operator safety. Based on the expected hazards that threaten the existing dams in Riyadh area, the proposed research employed different geophysical techniques to be applied on Wadi Namar Dam site, which are often the most cost-effective and rapid means. Electrical Resistivity Tomography (ERT), Seismic Refraction Tomography (SRT) and Ground Penetrating Radar (GPR) techniques were used for mapping bedrock topography, identifying near-surface karstic terrain and regions of potential weakness (e.g., faults and fractures) in the study site.

show abstract

Section: Overviewmentioning

confidence: 99%

Geotechnical Investigation of Namar Dam Site by Using Geophysical Tools, Riyadh, Saudi Arabia

2017

IJSR

View full text Add to dashboard Cite

show abstract

“…Several geophysical methods have been suggested for engineering site studies, it was considered as progressively acceptable tools to give more information about the subsurface structures and lithology for seismologists and civil engineers (Benson and Yuhr, 2002;Goldstein, 1994;Benson et al 1983;Al-Kubaisi and Shakir, 2018;Alsamarraie, 2020). The seismic methods are traditionally used in several exploration studies such as civil engineering and geotechnical studies to investigate the subsurface geological layering and many other purposes such as environmental, engineering, groundwater, industrial-mineral exploration, and hydrocarbon exploration (Khalil and Hanafy, 2008;Bridle, 2006;Hodgkinson and Brown, 2005).…”

Section: Introductionmentioning

confidence: 99%

Geotechnical Engineering Evaluation of Superficial Deposits Utilizing Seismic Methods at Al al-Bayt University, Jordan

Ghanem

Al-Amoush

Al-Tarazi

2021

IGJ

View full text Add to dashboard Cite

Integration of seismic refraction tomography and multi-channel analyses shear wave methods were used at Al al-Bayt university campus in Mafraq, NE Jordan to delineate the shallow subsurface layering and determine their geotechnical properties, in addition, to estimate the geotechnical engineering parameters of the superficial deposits for detailed purposes. The P-wave refraction velocities were found to range from 180 to 2300 m/s for the three identified layers which indicating superficial soil deposits with an increasing degree of compaction with depth. The S-wave velocities were found to lie in a narrow velocity range (250 to 600 m/s), which badly resolved the subsurface layering. Moreover, four soil samples were taken from the sites of seismic survey points for density calculations. The average calculated density was found to be 1.85 g/cm3. Two soil samples from nearby seismic profile-1 and seismic profile-4 were tested for geotechnical properties. The results showed that the seismic method is an effective tool to estimate the different elastic moduli; Poisson's ratio, Young's modulus, Bulk modulus, Shear modulus, Lame's constants, and geotechnical engineering parameters; N-value, bearing capacity, material index, concentration index, and stress ratio of the superficial soil deposits. The study recommends conducting a detailed geophysical study before starting any type of geoengineering construction in the area.

show abstract

Magnetic and seismic refraction survey for site investigation of an urban expansion site in Abha District, Southwest Saudi Arabia

et al. 2014

View full text Add to dashboard Cite

Expedited Site Characterization geophysics: Geophysical methods and tools for site characterization

Cited by 4 publications

References 2 publications

Geotechnical Investigation of Namar Dam Site by Using Geophysical Tools, Riyadh, Saudi Arabia

Geotechnical Investigation of Namar Dam Site by Using Geophysical Tools, Riyadh, Saudi Arabia

Geotechnical Engineering Evaluation of Superficial Deposits Utilizing Seismic Methods at Al al-Bayt University, Jordan

Magnetic and seismic refraction survey for site investigation of an urban expansion site in Abha District, Southwest Saudi Arabia

Contact Info

Product

Resources

About