Results 91 to 100 of about 15,205,058 (286)

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

Deep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao, Jiachen Xu, Kai Zhang, Changtai Zhou   +3 more
wiley   +1 more source

Semi‐analytical solution for the stability of deep vertical shaft considering time‐dependent rock‐structure interaction

Deep Underground Science and Engineering, EarlyView.
A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen, Pinqiang Mo, Zhao Lu, Lianfei Kuang, Qiang Zhang, Abolfazl Eslami   +5 more
wiley   +1 more source

Empirical Correlation between Geotechnical and Geophysical Parameters in a Landslide Zone (Case Study: Nargeschal Landslide)

Earth Sciences Research Journal, 2018
Today, geotechnical and geophysical techniques are used for landslide evaluation. Geotechnical methods provide accurate data, but are time consuming and costly.
Sadegh Rezaei, Issa Shooshpasha, Hamed Rezaei   +2 more
doaj   +1 more source

A novel technological conception of integrated large‐scale CO2 storage, water recovery, geothermal extraction, hydrogen production, and energy storage

Deep Underground Science and Engineering, EarlyView.
A holistic utilization system that integrates large‐scale CO2 storage, water recovery, heat extraction, hydrogen production, and energy storage is presented. The whole system can be further divided into upstream industries (CO2‐enhanced water recovery module), midstream industries (green‐hydrogen production module), and downstream industries (energy ...
Huiling Ci, Bing Bai, Tiancheng Zhang, Hongwu Lei   +3 more
wiley   +1 more source

Strength Characteristics and Prediction of Ternary Blended Cement Building Material Using RSM and ANN

Buildings
In this study, steel slag (SS) and ground coal bottom ash (GCBA) were utilized to partially substitute for cement in manufacturing ternary blended cement mortar.
Xiaofeng Li, Chia Min Ho, Shu Ing Doh, Mohammad I. Al Biajawi, Quanjin Ma, Dan Zhao, Rusong Liu   +6 more
doaj   +1 more source

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

Deep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei, Mojtaba D. fallahi, Ali Uromeihy, Mohammad R. Nikoodel, Mohammad Fathollahy   +4 more
wiley   +1 more source

Elastic and elastoplastic analysis of surrounding rock in CAES chambers considering excavation‐induced centripetal exponential reduction in mechanical properties

Deep Underground Science and Engineering, EarlyView.
This study presents an analytical framework for evaluating stress distribution in compressed air energy storage (CAES) chambers, incorporating excavation‐induced damage. Key findings highlight the impact of excavation disturbed zones (EDZs) on stress patterns and bearing capacity, offering design strategies to optimize chamber stability and improve ...
Zeyuan Sun, Cheng Zhao, Jinquan Xing, Ran Huang, Qinyuan Luo, Huiguan Chen, Jialun Niu   +6 more
wiley   +1 more source

Critical technologies in the construction of underground artificial chamber for compressed air energy storage systems

Deep Underground Science and Engineering, EarlyView.
This schematic illustrates an artificial chamber‐based compressed air energy storage system. Excess electricity compresses air into sealed underground chambers. During demand peaks, pressurized air is heated, expanded, and drives turbines to generate power.
Jifang Wan, Mingyin Li, Rui Zhao, Wendong Ji, Jingcui Li, Maria J. Jurado, Yangqing Sun   +6 more
wiley   +1 more source

Investigation of damage impact on stability and airtightness of lined rock caverns for compressed air energy storage

Deep Underground Science and Engineering, EarlyView.
This study developed a thermo‐hydro‐mechanical damage coupling model for the compressed air energy storage (CAES) cavern and investigated the impact of damage to the surrounding rock and lining concrete on the stability and airtightness of the CAES cavern.
Hui Zhou, Shuo Zhao, Yang Gao, Muhammad Usman Azhar, Mingming Hu, Songhua Mei, Feng Xiao, Hongliang Tu   +7 more
wiley   +1 more source