Results 101 to 110 of about 2,048 (300)

Study on the Damage Model of Non-Persistent Jointed Rock Mass under the Coupling of Freeze-Thaw and Shear. [PDF]

Materials (Basel), 2023
Lei D, Hu H, Chen Y, Lin H, Zhang C, Wang G, Lu Z, Zhang Y.   +7 more
europepmc   +1 more source

Application of D-CRDM Method in Columnar Jointed Basalts Failure Analysis

Journal of Applied Mathematics, 2013
Columnar jointed basalt is a type of joint rock mass formed by the combined cutting effect of original joints and aphanitic microcracks. After excavation unloading, such rock mass manifested distinct mechanical properties including discontinuity ...
Changyu Jin, Xiating Feng, Chengxiang Yang, Dan Fang, Jiangpo Liu, Shuai Xu   +5 more
doaj   +1 more source

Experimental and theoretical study on the propagation characteristics of stress wave in filled jointed rock mass. [PDF]

PLoS One, 2021
Jia S, Wang Z, Wang J, Lu Z, Wang H.
europepmc   +1 more source

Preliminary Research on Dynamic Hoek–Brown Strength Criterion for Rock Mass

The Hoek–Brown strength criterion is commonly employed to anticipate rock mass failure, considering influential factors including rock mass quality and static stress conditions.
Li, Xing,, Xie, Xiaokun,, Li, Jianchun,, Zhao, Jian,, Zou, Yang,   +4 more
core   +1 more source

Effects of Gouge Fill on Elastic Wave Propagation in Equivalent Continuum Jointed Rock Mass. [PDF]

Materials (Basel), 2021
Kim JW, Chong SH, Cho GC.
europepmc   +1 more source

Unloading performances and stabilizing practices for columnar jointed basalt: A case study of Baihetan hydropower station

Journal of Rock Mechanics and Geotechnical Engineering, 2017
The columnar jointed rock mass (CJR), composed of polygonal cross-sectional columns cut by several groups of joints in various directions, was exposed during the excavations of the Baihetan hydropower station, China. In order to investigate the unloading
Qixiang Fan, Xiating Feng, Wenlin Weng, Yilin Fan, Quan Jiang   +4 more
doaj   +1 more source

Bonded Particle Model for Jointed Rock Mass

, 2010
Jointed rock masses are formed of intact rock and joints. There-fore, proper characterization of rock mass behavior has to consid-er the combined behavior of the intact rock blocks and that of the joints.
Mas Ivars, Diego
core  

Optimized Selenium‐Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Excessive water production in mature oil fields necessitates robust shut‐off treatments, yet conventional polymer gels often fail under high‐temperature and high‐salinity conditions. This study aims to enhance gel thermal stability and mechanical strength by incorporating selenium‐doped Ag/AgO–ZnO nanocomposites synthesized via a novel green ...
Fadhil F. Sead, Farag M. A. Altalbawy, M. Sudhakara Reddy, Badri Narayan Sahu, Sridharan Sundharam, Sanjeev Kumar, Atreyi Pramanik, Aseel Smerat, Fatimah Pashtun   +8 more
wiley   +1 more source

Synergistic Physicochemical Inhibition of Reactive Shale Formations Using Hydrothermally Synthesized Hydroxyapatite Nickel Tungstate Nanocomposites in Water‐Based Drilling Fluids

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Wellbore instability driven by the volumetric expansion of reactive shale formations remains a primary operational challenge in modern drilling engineering, causing severe mechanical failures and substantial economic deficits. The objective of this study is to formulate and evaluate a novel dual‐action chemical additive capable of ...
Ghaleb Oriquat, Basim Abdul Alrhym, A. C. Umamaheshwer Rao, Shivam P. Chaudhary, Pardeep Singh Bains, Ripendeep Singh, Murotov Nurshod, Rasulbek Eshmetov, Ahmad Abumalek   +8 more
wiley   +1 more source

Conducting Research to Identify Key Features and Critical Nodes in the Coalescence and Instability of Pre-Fabricated Jointed Rock

Applied Sciences
The instability of jointed rock masses has been a persistent concern in China’s underground geotechnical engineering, particularly regarding rock mass instability triggered by structural activation, such as faulting.
Buchu Zhang, Shichuan Zhang, Baotang Shen, Yangyang Li, Shilong Song, Xuexian Han   +5 more
doaj   +1 more source