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Article
Geophysical estimation of 2D hydraulic conductivity for groundwater assessment in hard rock
Accurate evaluation of aquifer potential is essential for groundwater assessments. Aquifer potential is mainly evaluated by aquifer parameters. Hydraulic conductivity (K) is the main aquifer parameter extensively...
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Article
Open AccessEvaluation of rock mass units using a non-invasive geophysical approach
Thorough and accurate assessment of rock mass units is important for development of engineering infrastructures and groundwater resources assessments. Rock mass units are widely evaluated by reliable geomechan...
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Article
Investigating the groundwater resources of weathered bedrock using an integrated geophysical approach
Groundwater occurs within fractures of crystalline hard-rock. Mostly, these fractures are covered by weathered rocks; therefore, delineation of their spatial position is a challenge task. Geophysical methods a...
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Article
Determination of rock quality designation (RQD) using a novel geophysical approach: a case study
Rock mass integrity is mainly assessed by geotechnical parameters. Rock quality designation (RQD) is a reliable geomechanical parameter, extensively used in geotechnical engineering to obtain proper design of ...
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Article
Evaluation of Engineering Rock Mass Quality via Integration Between Geophysical and Rock Mechanical Parameters
Accurate evaluation of rock mass quality and faults/fractures is the main challenge in rock mechanics and rock engineering. Rock quality designation (RQD) is an important rock mass classification index for inf...
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Article
Stability analysis of fractured rock mass around underground excavations based on a three-dimensional discrete fracture network
Underground excavation often encountered rock masses embedded with pre-existing fractures. Conventional excavation analysis was generally based on a continuum description. In this study, to investigate the inf...
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Article
Site suitability for engineering-infrastructure (EI) development and groundwater exploitation using integrated geophysical approach in Guangdong, China
This study describes the efficiency of an incorporated geophysical approach involving ERT (electrical resistivity tomography), magnetic, induced polarization (IP), and self-potential (SP), with a view to inves...
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Article
Open AccessApplication of electrical resistivity tomography (ERT) for rock mass quality evaluation
Rock mass quality evaluation is a challenging task in geotechnical investigations given the natural heterogeneity and the limited data. These investigations mainly depend on the traditional drilling tests. How...
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Article
Joint geophysical prospecting for groundwater exploration in weathered terrains of South Guangdong, China
Groundwater occurrence in a hard rock terrain is strongly controlled by the weathered/fractured zones. However, delineation of such zones is a challenging task given their structural heterogeneity. Traditional...
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Article
Predicting collapse depth of paleocaves in carbonate reservoirs
Paleocaves in carbonate reservoirs are the excellent oil and gas storage spaces in the field of petroleum exploration. Predicting the collapse depth of paleocaves in carbonate reservoirs has essential theoreti...
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Article
Estimation of hydraulic parameters in a hard rock aquifer using integrated surface geoelectrical method and pum** test data in southeast Guangdong, China
Estimation of hydraulic parameters is important for the prediction of the future availability of groundwater reserves. Conventionally, pum** tests are conducted on boreholes to measure these parameters. Howe...
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Article
An engineering site investigation using non-invasive geophysical approach
Subsurface geological formation is essential to validate design assumptions for the construction of deep engineering structures, especially in the weathered terrains. The geological formation can be delineated...
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Article
Delineation of contaminated aquifers using integrated geophysical methods in Northeast Punjab, Pakistan
A decline in surface water sources in Pakistan is continuously causing the over-extraction of groundwater resources which is in turn costing the saltwater intrusion in many areas of the country. The saltwater ...
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Article
An engineering site suitability index (ESSI) for the evaluation of geological situations based on a multi-factor interaction matrix
The aim of this study is to determine how to evaluate the suitability of engineering sites quantitatively with the aid of multi-disciplines. This paper presents an engineering site suitability index (ESSI) sys...
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Article
Determination of the geometrical REV based on fracture connectivity: a case study of an underground excavation at the Songta dam site, China
This paper presents a technique for estimating the geometrical representative elementary volume (REV) of a fractured rock mass based on fracture connectivity. A three-dimensional fracture network model, of dim...
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Article
Modification of rock mass strength assessment methods and their application in geotechnical engineering
Due to complicated structures and discontinuities in surrounding rock mass, existing empirical failure criteria cannot meet the requirements of engineering practice such as tunnels. To improve estimation accur...
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Article
Deformation and failure of a tunnel in the restraining bend of a strike–slip fault zone: an example from Hengshan Mountain, Shanxi Province, China
The Yanmenguan Tunnel runs through Hengshan Mountain in Shanxi Province, China. The mountain is mainly composed of metamorphic rock cut by a well-developed strike–slip fault system. As a result of the local ge...
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Article
Connectivity of Three-Dimensional Fracture Networks: A Case Study from a Dam Site in Southwest China
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Article
The 102 Landslide: human–slope interaction in SE Tibet over a 20-year period
The evolution of large-scale landslides should be studied because, over long periods of time, primary remediation measures may suffer reduced efficiency or have to be adjusted many times. The 102 Landslide in ...
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Article
Modifications to the GSI for granite in drilling
The Geological Strength Index (GSI) is widely used to estimate mechanical parameters of rock mass, but estimation of GSI is relatively subjective because of the lack of quantitative parameters. Hence, the exis...
