Neutrally buoyant tracers in hydrogeophysics: Field demonstration in fractured rock
Sign Up to like & getrecommendations! Published in 2017 at "Geophysical Research Letters"
DOI: 10.1002/2017gl073368
Abstract: Electrical and electromagnetic methods are extensively used to map electrically conductive tracers within hydrogeologic systems. Often, the tracers used consist of dissolved salt in water, leading to a denser mixture than the ambient formation water.… read more here.
Keywords: neutrally buoyant; fractured rock; buoyant tracers; tracers hydrogeophysics ... See more keywords
Investigating Hydraulic Fracturing Complexity in Naturally Fractured Rock Masses Using Fully Coupled Multiscale Numerical Modeling
Sign Up to like & getrecommendations! Published in 2019 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-019-01851-3
Abstract: Naturally fractured rock mass is highly inhomogeneous and contains geological discontinuities at various length scales. Hydraulic fracture stimulation in such a medium could result in complex fracture systems instead of simple planar fractures. In this… read more here.
Keywords: fracture; fractured rock; rock mass; hydraulic fracturing ... See more keywords
Supporting a Retained Gob-Side Entry Under Soft and Fractured Rock: Computer Simulations and a Practical Example
Sign Up to like & getrecommendations! Published in 2018 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-018-0745-y
Abstract: Abstract This study uses theoretical analysis, finite difference numerical simulations with FLAC3D software, and a field test to determine and demonstrate the most reasonable width for a retained gob-side entry and the most reasonable dimensions… read more here.
Keywords: gob side; soft fractured; side entry; fractured rock ... See more keywords
Equivalent discrete fracture networks for modelling fluid flow in highly fractured rock mass
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Geology"
DOI: 10.1016/j.enggeo.2017.09.013
Abstract: Fracture flow is the dominant flow in many cases in a fractured rock mass, which behaves more heterogeneous, anisotropic and irregular than porous flow because of the complexity of the fracture networks. Rock mass with… read more here.
Keywords: fracture; dfn; fractured rock; rock mass ... See more keywords
Applicability of method to estimate transmissivity based on yield-drawdown analysis in mountainous fractured-rock aquifers: A case study in Taiwan
Sign Up to like & getrecommendations! Published in 2019 at "Engineering Geology"
DOI: 10.1016/j.enggeo.2019.105315
Abstract: Abstract The observation of yield-drawdown response in the course of pumping test, as well as its derived application for aquifer characterization, is an essential practice in a geotechnical investigation. On the basis of that, for… read more here.
Keywords: rock aquifers; mountainous fractured; yield drawdown; fractured rock ... See more keywords
An investigation into the development of toppling at the edge of fractured rock plateaux using a numerical modelling approach
Sign Up to like & getrecommendations! Published in 2017 at "Geomorphology"
DOI: 10.1016/j.geomorph.2017.03.023
Abstract: Abstract The mechanisms controlling the onset of minor slope instability at the edges of rocky plateaux exhibiting lateral spreading phenomena are yet to be fully understood. Hypotheses have recently been introduced to explain the influence… read more here.
Keywords: investigation development; modelling; fractured rock; approach ... See more keywords
Role of induced electrical polarization to identify soft ground/fractured rock conditions
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Geophysics"
DOI: 10.1016/j.jappgeo.2016.12.017
Abstract: Abstract This study attempted to evaluate the role and effectiveness of induced polarization (IP) along with electrical resistivity to identify soft ground/fractured rock. Theoretical studies as well as laboratory-scale experiments were conducted for this purpose.… read more here.
Keywords: ground; chargeability; water; fractured rock ... See more keywords
Assessing the timing and magnitude of precipitation-induced seepage into tunnels bored through fractured rock
Sign Up to like & getrecommendations! Published in 2017 at "Tunnelling and Underground Space Technology"
DOI: 10.1016/j.tust.2017.02.003
Abstract: Abstract Seepage into tunnels bored through fractured rock is a common occurrence that can cause significant problems for the construction process, tunnel longevity, and regional hydrogeology. Predictions of seepage using analytical solutions and numerical models… read more here.
Keywords: hydrogeology; fractured rock; tunnels bored; seepage ... See more keywords
Hybrid Grey Wolf Optimization Algorithm–Based Support Vector Machine for Groutability Prediction of Fractured Rock Mass
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Computing in Civil Engineering"
DOI: 10.1061/(asce)cp.1943-5487.0000814
Abstract: AbstractGroutability determination is a very important task in grouting quality control. There is little research on the groutability of cement-based grout in a fractured rock mass, and the predict... read more here.
Keywords: rock mass; hybrid grey; fractured rock; groutability ... See more keywords
Bioremediation in Fractured Rock: 1. Modeling to Inform Design, Monitoring, and Expectations.
Sign Up to like & getrecommendations! Published in 2018 at "Ground water"
DOI: 10.1111/gwat.12585
Abstract: Field characterization of a trichloroethene (TCE) source area in fractured mudstones produced a detailed understanding of the geology, contaminant distribution in fractures and the rock matrix, and hydraulic and transport properties. Groundwater flow and chemical… read more here.
Keywords: bioremediation fractured; bioremediation; groundwater flow; fractured rock ... See more keywords
Determining the REV for Fracture Rock Mass Based on Seepage Theory
Sign Up to like & getrecommendations! Published in 2017 at "Geofluids"
DOI: 10.1155/2017/4129240
Abstract: Seepage problems of the fractured rock mass have always been a heated topic within hydrogeology and engineering geology. The equivalent porous medium model method is the main method in the study of the seepage of… read more here.
Keywords: fracture; fractured rock; rock mass; seepage ... See more keywords