Results 41 to 50 of about 26,563 (284)

The impact of accelerometer mounting methods on the level of vibrations recorded at ground surface [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2014
The paper presents the results of field research based on the measurements of accelerations recorded at ground surface. The source of the vibration characterized by high repetition rate of pulse parameters was light falling weight deflectometer ZFG-01 ...
Krzysztof Czech, Wojciech Gosk
doaj   +1 more source

Mechanism of magnetic field effect on hydrocarbon systems [PDF]

open access: yes, 2016
Purpose. The aim is to analyze the problem of preventing the asphalt-resin-paraffin deposits (ARPD) in the oil industry equipment and to justify application of paraffin control methods; to review modern approaches to ARPD problem and possible methods ...
Manhura, A, Manhura, S
core   +2 more sources

Probability prediction of true‐triaxial compressive strength of intact rocks based on the improved PSO‐RVM model

open access: yesDeep Underground Science and Engineering, EarlyView.
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang   +4 more
wiley   +1 more source

Innovative approach in the stabilisation of coastal slopes [PDF]

open access: yes, 2018
Coastal slope instability poses a risk to life and material properties and is of great concern in times of climate change, posing challenges as communities seek to adapt and ensure resilience.
Mickovski, Slobodan B.   +1 more
core   +1 more source

Study on the failure mechanism of the shield excavation face in the sandy cobble stratum under different buried depths

open access: yesDeep Underground Science and Engineering, EarlyView.
Abstract One of the significant challenges faced in shield tunnel construction is the risk of collapse resulting from abrupt changes in soil conditions in advance of the working face, particularly within the sandy cobble stratum. This study aims to effectively manage these sudden variations and to further investigate the failure mechanisms associated ...
Hua Jiang   +4 more
wiley   +1 more source

ANALYSIS OF ATTERBERG LIMITS OF CLAYEY SOILS EXPOSED TO POLLUTANTS

open access: yesRudarsko-geološko-naftni Zbornik
The issue of soil pollution has become a global concern due to the extensive and accelerated industrial development since the Industrial Revolution. Various anthropogenic activities, including industrial processes and agricultural practices, introduce ...
Noémi Szász, Andrea Tóth
doaj   +1 more source

Application of the Kinematic Assessment of Multi-Faced Slopes Using Stereographic Projection: The Case Study of a Planar Failure on the Spondylus Coast, Ecuador

open access: yesApplied Sciences, 2023
This manuscript presents a relevant practical application of the stability analysis of multi-face slopes that uses the concept of the restricted daylight envelope in multi-faced slopes (MFS).
Cesar Patricio Borja Bernal   +1 more
doaj   +1 more source

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

open access: yesDeep Underground Science and Engineering, EarlyView.
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

Set-up effects of piles in sand tested in the centrifuge [PDF]

open access: yes, 2014
The bearing capacity of piles increases over time. Research has shown that this is caused by an increase in shaft friction combined with a constant or only slightly increasing base capacity.
Bezuijen, Adam   +4 more
core   +2 more sources

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

open access: yesDeep Underground Science and Engineering, EarlyView.
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

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