Results 71 to 80 of about 7,123,984 (286)

Arch Dam and Skewback and Dam Abutment Rock Mass Deformation under Seepage Field and Stress Field Coupling [PDF]

, 2012
Seepage and stress field interaction is one of important characteristics of rock mass which can not be ignored. Rock mass seepage and stress field coupling has become one of the hot and difficult problems in rock mechanics, and also a scientific problem ...
Wang, Huan Ling, He, Miao
core   +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

Unsteady Seepage Analysis of Extra-high Core-wall Rockfill Dam During Impoundment

Renmin Zhujiang, 2023
The water level of an extra-high core-wall rockfill dam rises rapidly during the impoundment period.To ensure the seepage stability of key parts such as the core wall,this study determines the calculation conditions according to the actual monitoring ...
YANG Huigang, LIU Detan, SHANG Yongxi, WANG Junfeng, XU Liqun, HUANG Zhangxin   +5 more
doaj  

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

Seepage and stress analysis of anti-seepage structures constructed with different concrete materials in an RCC gravity dam

Water Science and Engineering, 2015
This study used the finite element method (FEM) to analyze the stress field and seepage field of a roller-compacted concrete (RCC) dam, with an upstream impervious layer constructed with different types of concrete materials, including three-graded RCC ...
Ming-chao Li, Xin-yu Guo, Jonathan Shi, Ze-biao Zhu   +3 more
doaj  

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

Deep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt, Yu Pan, Heinz Konietzky, Fei Wang   +3 more
wiley   +1 more source

The Temporal and Spatial Evolution of Flow Heterogeneity During Water Flooding for an Artificial Core Plate Model

Energies
In the process of reservoir water flooding development, the characteristics of underground seepage field have changed, resulting in increasingly complex oil–water distribution. The original understanding of reservoir physical property parameters based on
Chen Jiang, Qingjie Liu, Kaiqi Leng, Zubo Zhang, Xu Chen, Tong Wu   +5 more
doaj   +1 more source

Storage seepage and evaporation: a summary of the results from the measurement of seepage and evaporation losses from 136 on-farm storages across the cotton industry [PDF]

, 2011
On-farm storages can be a major source of water loss on cotton farms. Previous studies in the Macintyre valley (Dalton 2001)indicated seepage losses of between 2% and 10% and evaporation losses of between 14% and 40% of all farm water in a year. In order
Wigginton, David
core   +1 more source

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

Deep Underground Science and Engineering, EarlyView.
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu, Xiang Ci, Weizhong Chen, Jianping Yang   +3 more
wiley   +1 more source

Regularity of three fields evolution of hydraulic fracturing process in coal seam

Gong-kuang zidonghua, 2016
Numerical simulation was conducted for hydraulic fracturing process in coal seam according to solid-liquid coupling equations and Mohr-Coulomb principle.
XU Zhaoyong, SONG Dazhao, QIU Liming, WANG Enyuan, MA Yafei, HE Junjiang   +5 more
doaj   +1 more source