Results 181 to 190 of about 730,496 (259)

Diagenesis and Petroleum Significance of Veins in Marine Carbonate: A Case Study from the Subsalt Ordovician Fourth Member of the Majiagou Formation, Ordos Basin, China. [PDF]

ACS Omega
Sun W, Zhang D, Chen X, Wang Q, Wang T, Li F, Ma M, Guan X, Wang X, Liu W.   +9 more
europepmc   +1 more source

Numerical research on anti‐dislocation measures design of deep‐buried tunnels in an anisotropic rock mass area

Deep Underground Science and Engineering, EarlyView.
This paper conducts a numerical simulation study on the construction of a deep‐buried tunnel in an anisotropic stratum area. A statistical analysis of the effects of two anti‐faulting design measures, namely, a conventional design and an articulated design, is carried out, and the results demonstrate the effectiveness of the anti‐faulting structures ...
Shiqi Liu, Huanling Wang, Yong Zhou, Zhen Wang   +3 more
wiley   +1 more source

LightECA-UNet: a lightweight model for segmentation of coal fracture CT images. [PDF]

Sci Rep
Xing X, Li Y, Zhang Y, Li H, Wang G.
europepmc   +1 more source

Probabilistic characterization of seepage‐induced tunnel face failure via a two‐phase double‐point material point method

Deep Underground Science and Engineering, EarlyView.
To address seepage‐induced tunnel face collapse, this study develops a two‐phase double‐point MPM framework to capture large‐deformation hydro‐mechanical interactions. Incorporating a cementation‐based constitutive model with dynamic permeability updates, the model is successfully validated against saturated granular‐column collapse experiments ...
Yue Tong, Mingliang Zhou, Jie Xu, Zeyu Li, Yisheng Zhao, Jin An, Hongwei Huang   +6 more
wiley   +1 more source

The Mechanisms and Applications of CO₂‑Elevated Fracturing in Tight Sandstone Gas Reservoirs: A Comprehensive Investigation for Enhanced Oil and Gas Recovery. [PDF]

ACS Omega
Zhao Z, Zhang Y, Huang Y, Zhang X.
europepmc   +1 more source

Numerical investigation of natural fracture activation and leakage risk during CO2 sequestration in depleted sandstone reservoirs

Deep Underground Science and Engineering, EarlyView.
This study investigates the hydro‐mechanical response and fracture evolution in depleted sandstone reservoirs during CO2 injection, considering both direct wellbore injection and hydraulic‐fracture‐assisted injection. The graphical abstract illustrates how CO2 injection induces dynamic stress redistribution, leading to natural fracture activation ...
Haiyang Wang, Chen Lu, Yufei Wang, Yichen Yang, Xu Su, Desheng Zhou, Qingqing Wang   +6 more
wiley   +1 more source

Pore Structure Reconstruction and Gas-Water Dual-Flow Simulations Combined with CT Scans and NMR Measurements on Coal Particle Samples. [PDF]

ACS Omega
Zou M, Zhang H, Cui J, Shao Y, Song Y, Liang K, Sun Y.   +6 more
europepmc   +1 more source

Investigation on the mechanical behavior of the multiple‐layered lining structure of a water conveyance tunnel with high internal water pressure

Deep Underground Science and Engineering, EarlyView.
This study presents large‐scale similarity model testing (geometric ratio 3.6) of an innovative multiple‐layered lining system—comprising exterior precast segments, middle self‐compacting concrete, and an interior steel pipe—for high‐pressure (0.75 MPa) water conveyance tunnels.
Ramin Asadi, Shimin Wang, Chang Liu, Zhiyu Lin, Chuan He   +4 more
wiley   +1 more source

Investigation of gold mineralization along the Al Amar Fault Zone using integrated geophysical and remote sensing methods in the Saudi Arabian Shield. [PDF]

Sci Rep
Abd El-Wahed MA, Attia M, Kassem OMK, Saad WM, Othman A, Saada SA, Eldosouky AM.   +6 more
europepmc   +1 more source

Energy evolution‐based damage quantification and failure prediction of fault zone tunnel lining concrete: A novel acoustic emission–strain energy coupling approach

Deep Underground Science and Engineering, EarlyView.
This study investigates the damage evolution and failure mechanisms of tunnel lining concrete in active fault zones through uniaxial compression tests integrated with acoustic emission (AE) monitoring. A strong linear correlation is identified between the AE cumulative absolute energy and the total strain energy, providing a reliable energy‐based ...
Shuaida Zhu, Dongming Zhang, Mingliang Zhou, Shengjun Duo, Hongwei Huang   +4 more
wiley   +1 more source