Results 71 to 80 of about 2,581 (196)
Study on the Prediction of the Uniaxial Compressive Strength of Rock Based on the SSA-XGBoost Model
The uniaxial compressive strength of rock is one of the important parameters characterizing the properties of rock masses in geotechnical engineering.
Tianxing Ma +5 more
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Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley +1 more source
The high sedimentological variability of gypsum rocks has the effect that a univocal characterization of this material is not easy to establish. This is particularly true from the geomechanical point of view: when the mechanical properties of gypsum ...
C. Caselle +3 more
doaj +1 more source
Rockburst prediction based on data preprocessing and hyperband‐RNN‐DNN
A data preprocessing workflow is proposed to address challenges in rockburst data analysis. Coupled algorithms preprocess the data set, and hyperband optimization is used to enhance RNN performance. Results show that preprocessing improves accuracy, while dense layers enhance model stability and prediction performance.
Yong Fan +4 more
wiley +1 more source
The determination of uniaxial compressive strength from point load strength for pyroclastic rocks
The point load test has often been reported as an indirect measure of compressive strength. It has been used widely in practice due to easy testing, the simplicity of specimen preparation, and possible field applications.
Kahraman, SAİR
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Uniaxial compressive strength test and indirect tensile tests for four types of rocks
This data sets include UCS tests and indirect tensile tests for four types of rock: Alabama Marble, Bonne Terre Dolomite, Burlington Limestone, and Dunnville Sandstone. Three samples are used for the UCS and tensile tests on each rock.
Detournay, Emmanuel +2 more
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The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu +4 more
wiley +1 more source
Texture and mineralogical composition of rocks have a significant impact on their mechanical properties. Grain size is a crucial textural property of sandstones, as it significantly influences their physical and mechanical characteristics.
Ali Lakirouhani +2 more
doaj +1 more source
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza +3 more
wiley +1 more source
Schmidt rebound hammer (SRH) test has been used worldwide as an index test for estimating the compressive strength and deformation characteristics of intact rocks.
Selçuk, Levent, Yabalak, Esma
core +1 more source

