Results 91 to 100 of about 6,761 (302)

Deterioration of excavated rockslopes : mechanisms, morphology and assessment [PDF]

, 2000
Results are reported of laboratory simulated weathering processes on a range of sedimentary rocks and the investigation of the deterioration of rock masses as observed on engineered and quarried rockslopes.
Nicholson, Dawn Theresa
core  

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

Deep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, David Healy   +4 more
wiley   +1 more source

A Study of Echelon Fracture Sets in the Killarney Igneous Complex, Killarney, Ontario

, 1988
The igneous rocks of the Killarney Complex, Killarney, Ontario exhibit numerous echelon fracture sets near their contact with mylonites of the Grenville Front. The echelon fracture sets are younger than the Grenville Front mylonites and are therefore
MacKinnon, Paula
core  

Calibrating discrete fracture-network models with a carbonate three-dimensional outcrop fracture network: Implications for naturally fractured reservoir modeling

, 2014
Modeling naturally fractured reservoirs requires a detailed understanding of the three-dimensional (3D) fracture-network characteristics, whereas generally only one-dimensional (ID) data, often suffering from sampling artifacts, are available as inputs ...
Bertotti, G.V., Bisdom, K., Gauthier, B., Hardebol, N.J.   +3 more
core   +1 more source

The effects of nearby fractures on hydraulically induced fracture propagation and permeability changes [PDF]

, 2017
Fracture propagation caused by hydraulic fracturing operations can be significantly influenced by adjacent fractures. This paper presents a detailed coupled hydro-mechanical analysis to study the effects of nearby natural fractures on hydraulically ...
Figueiredo, Bruno, Jonny Rutqvist, Auli Niemi, Rutqvist, Jonny,, Chin-Fu Tsang, Niemi, Auli, Tsang, Chin-Fu,, Bruno Figueiredo, Tsang, Chin-Fu, Figueiredo, Bruno,, Rutqvist, Jonny, Niemi, Auli,   +11 more
core   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

Petrogenesis of the Tikorangi Formation fracture reservoir, Waihapa-Ngaere Field, Taranaki Basin

, 2002
The subsurface mid-Tertiary Tikorangi Formation is the sole limestone and the only fracture-producing hydrocarbon reservoir within Taranaki Basin. This study, based on core material from seven wells in the onshore Waihapa/Ngaere Field, uses a range of ...
Nelson, Campbell S., Hood, Steven D., Kamp, Peter J.J.   +2 more
core  

Failure characteristics analysis of the inclined interlayer during water‐soluble cavity construction of underground salt caverns for large‐scale energy storage

Deep Underground Science and Engineering, EarlyView.
In the process of water‐soluble cavern construction of salt cavern energy storage, since the interlayer does not dissolve in water easily, sudden collapse will cause engineering accidents such as bending and damage of the inner tube of the cavern.
Zenghui Zhao, Tianyu Li, Qing Ma, Junlong Shang, Jiaze Du, Ruizhe He   +5 more
wiley   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source

Regional deterministic characterization of fracture networks and its application to GIS-based rock fall risk assessment

, 2007
The study investigates the possibility to incorporate fracture intensity and block geometry as spatially continuous parameters in GIS-based systems. For this purpose, a deterministic method has been implemented to estimate block size (Bloc3D) and joint ...
Sartori, M., Sturzenegger, M., Jaboyedoff, M., Stead, D.   +3 more
core   +1 more source