115 Result(s)
within
Dong-**ng Wang
English
Geoengineering, Foundations, Hydraulics
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Article
Swelling characteristics of compacted graphene-modified GMZ bentonite infiltrated with NaCl solution
Graphene is regarded as a promising additive to enhance the thermal conductivity of bentonite in the geological repository, yet the hydro-mechanical properties of its mixture with bentonite under chemical cond...
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Article
Rock fracture identification algorithm based on the confidence score and non-maximum suppression
The information of fractures in rock mass is an essential indicator to evaluate the quality of rock mass. It is precise and efficient to obtain information of fractures by computer vision (CV)-based fracture d...
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Article
Prediction of the inertial permeability of a 2D single rough fracture based on geometric information
The apparent permeability of a single rough fracture undergoes complex evolution in a non-Darcy flow regime, making description of the nonlinear flow challenging. The inertial permeability can be used to effec...
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Article
Open AccessCase study on the secondary support time and optimization of combined support for a roadway under high in-situ stress
Roadway support can effectively improve the stability of roadway excavation and ensure the safety of underground mining. This study investigates the secondary support time and parameter optimization of combine...
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Article
Comparative study on the performance of different slope protective measures under rainfall conditions: the case study of Qingyang City, China
This study addresses the challenge of deformation and failure on loess slopes, predominantly triggered by rainfall, by evaluating the efficacy of various slope protective measures. Recognizing the escalating p...
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Article
Behavior and stability of engineering bedding rock slope during construction
The construction of the bedding rock slope of AK3 + 690 to AK3 + 888 in Tonghuang Expressway began on November 23, 2003. After cracks appeared at the back edge of the slope in 2004, the support measures were o...
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Article
Experimental study on shrinkage characteristics of compacted bentonite–sand mixtures
Bentonite–sand mixtures have been proposed as the potential engineered barrier materials because of their low permeability and strong sealing ability under hydrated repository conditions. However, the mixtures...
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Article
Open AccessAn evaluation method of open-pit slope stability based on Poset theory
To achieve an objective and reasonable judgment on slope stability, the partially ordered set (Poset) theory is applied to the slope stability evaluation against the engineering background of an open pit slope...
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Chapter and Conference Paper
Study on Natural Gas Sources and Accumulation Conditions of Sinian Dengying Formation in Hechuan-Tongnan Area, Sichuan Basin
In April 2021, the risky exploration well HS5 deployed in Hechuan-Tongnan area of the Sichuan Basin obtained a high-producing industrial gas flow in Sinian Dengying Formation, showing a greet exploration poten...
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Chapter and Conference Paper
Geological Characteristics Analysis of the Taiyuan Limestone Gas Reservoir in Zizhou-Qingjian Area, Ordos Basin
In Zizhou-Qingjian area, Ordos Basin, the Taiyuan limestone of Early Permian has good exploration prospects. The breakthrough of well A*1H has heighten confidence in limestone reservoir exploration. Geological...
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Article
Thermal and saline effects on the swelling deformation of montmorillonite: a molecular dynamics study
Compacted bentonite is often considered the optimum buffering material in deep geological repository for high-level radioactive waste (HLRW). The investigation of Mt (montmorillonite) swelling behaviors under ...
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Article
A numerical study of viscous granular flow in artificial step-pool systems: flow characteristics and structure optimization
Inspired by the geomorphologic phenomenon of step-pool bed configuration, analogous dissipation structures are set in drainage channels to mitigate granular flow hazards. The sensible design of artificial step...
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Article
Three-dimensional DEM investigation of mechanical behaviors of grain-cementing type methane hydrate-bearing sediment
This study employs the discrete element method (DEM) and the coupled computational fluid dynamics-discrete element method (CFD-DEM) to explore the effects of hydrate cementation and intermediate principal stre...
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Article
Open AccessAnalysis of the EFARC non-pillar mining stope: roof failure and overlying pressure in inclined coal seams
During the process of coal mining, there is a violent appearance of mining stress when the initial weighting occurs. To guarantee the safety of the gob-side entry formed automatically by roof-cutting (EFARC) i...
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Article
Open AccessPhysical modeling of long-term dynamic characteristics of the subgrade for medium–low-speed maglevs
To investigate the dynamic characteristics and long-term dynamic stability of the new subgrade structure of medium–low-speed (MLS) maglevs, cyclic vibration tests were performed under natural and rainfall cond...
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Article
Research on the blocking effect of baffle-net structure on rock avalanches: consider the influence of particle splashing
This paper discussed the changes in the movement trajectories and deposition patterns of the rock avalanches in the baffle-net structure under different cases, and obtained the optimal layout parameters of th...
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Article
A joint application of semi-airborne and in-tunnel geophysical survey in complex limestone geology
When tunneling in karst mountainous areas, some adverse geological conditions such as karst caves and water-rich strata are often encountered, which may induce unexpected geological hazards and represent major...
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Article
Role of boundary condition, stress–suction coupling, and effective stress in swelling of densely compacted Gaomiaozi bentonite
The swelling behavior of compacted bentonite needs to be analyzed in detail to ensure the buffer functions in deep geological repositories. In this study, various swelling tests were conducted on densely compa...
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Article
The spatial distribution of excavation damaged zone around underground roadways during blasting excavation
Knowledge of the degree and depth of the excavation damaged zone (EDZ) resulting from drill-and-blast excavations has important influences on the design and construction of deep underground tunnels. However, t...
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Article
Vs-based assessment of soil liquefaction potential using ensembling of GWO–KLEM and Bayesian theorem: a full probabilistic design perspective
Shear wave velocity (Vs) offers engineers a promising alternative means to evaluate liquefaction resistance of sandy soils. However, the Vs-based probabilistic evaluation of soil liquefaction using machine learni...
