Results 141 to 150 of about 326,261 (358)

A novel construction approach for the pore structure model principally focuses on the controllable roundness of rock particles

Deep Underground Science and Engineering, EarlyView.
Particle rounding effects comparison of different methods: (a), (b), and (c) are the rounding results using the B‐spline curve method with different R; (d), (e), and (f) are the results of vertex rounding substitution method with different rounding radii.
Jiabin Dong, Ning Yang, Yi Jin, Ying Wu, Dandan Liu, Junling Zheng, Jingyan Zhao   +6 more
wiley   +1 more source

Analysis on the spatiotemporal evolutions of groundwater hydrochemistry and water quality caused by over-extraction and seawater intrusion in eastern coastal China

Frontiers in Earth Science
The over-extraction of groundwater has resulted in seawater intrusion and the southward migration of the saltwater interface, gradually deteriorating the groundwater quality in the Weibei Plain. In this research, groundwater samples were gathered from 46
Weifan Chen, Chu Wu, Shibing Pan, Long Shi   +3 more
doaj   +1 more source

Data‐driven analysis of the spatial dependence of grouting efficiency during tunnel excavation

Deep Underground Science and Engineering, EarlyView.
Prediction of grouting efficiency using machine learning is enhanced by adopting a training strategy that accounts for the grouting process across multiple rounds. Abstract Grouting with water–cement mixtures is the most widely used and cost‐effective method for managing excess water inflow during tunnel construction.
Huaxin Liu, Xunchang Fei, Wei Wu
wiley   +1 more source

Evaluating Groundwater Quality Using Multivariate Statistical Analysis and Groundwater Quality Index

Civil Engineering Journal
Under pressure from surface water pollution and climate change, groundwater becomes a critical water source. Information on groundwater quality could contribute to effective groundwater management. This study was carried out to utilize multivariate statistical analysis and the groundwater quality index (GWQI) to evaluate groundwater quality in Ca Mau ...
Nguyen Quoc Pham, Giao Thanh Nguyen
openaire   +1 more source

Hydrogeochemical Characteristics and Evolutionof Groundwater Quality of an Abandoned CoalMine in Huaibei Coalfield, Eastern China [PDF]

Feng Yu, Qimeng Liu, Kai Chen, Zhiming Zhang   +3 more
openalex   +1 more source

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

Deep 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, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +3 more
wiley   +1 more source

An Automated Approach to Groundwater Quality Monitoring—Geospatial Mapping Based on Combined Application of Gaussian Process Regression and Bayesian Information Criterion [PDF]

, 2021
Dmitrii Shadrin, Artyom Nikitin, Polina Tregubova, В. А. Терехова, Raghavendra B. Jana, С. А. Матвеев, Mariia Pukalchik   +6 more
openalex   +1 more source

Urban wastewater: A valuable resource for agriculture - A case study from Haroonabad, Pakistan [PDF]

Waste waters / Irrigation water / Water reuse / Economic analysis / Soil properties / Households / Water availability / Water use / Water quality / Groundwater / Public health / Risks / Case ...
Ali, N., Aslam, R., Ensink, J. H. J., Feenstra, S., Hussain, R., Matsuno, Y., Munir, S., Raschid-Sally, L., Ul Hassan, M., van der Hoek, W.   +9 more
core  

Integration of artificial neural network and geographic information system applications in simulating groundwater quality [PDF]

, 2016
Background: Although experiments on water quality are time consuming and expensive, models are often employed as supplement to simulate water quality.
Vahid Gholami1, Marhemat Sebghati2, Zabihollah Yousefi3*,
core  

Numerical investigation on the influence of mesoscopic deformation on contact area and hydraulic aperture to fracture seepage

Deep Underground Science and Engineering, EarlyView.
Fluid flow through a single fracture is commonly described by the cubic law. However, deviations from this model are expected because natural fracture surfaces are rough and in contact with each other in discrete regions. In this study, the interactions between fracture closure, contact area, and hydraulic characterization of mesoscopic‐scale rough ...
Chenghao Han, Yuanlin Bai, Weijie Zhang, Jicheng Zhang, Hongfa Ma, Weiye Li   +5 more
wiley   +1 more source