Results 71 to 80 of about 1,362,105 (311)

Experimental study on dynamic behavior analysis of coal and its acoustic emission response characteristics under impact failure

Deep Underground Science and Engineering, EarlyView.
Based on acoustic emission response characteristics, it can be more accurate to identify the damage evolution process of coal under the combined dynamic and static loads, reveal the moment corresponding to coal damage, and identify the characteristics of coal failure. The research results are conducive to the further use of acoustic emission monitoring
Wei Zhang, Huijian Fu, Yingke Liu, Zhaoxi Long, Yang Liu, Tengrui Yang, Yanbo Sun, Mingjun Jiang, Xiaojiang Wen, Yue Niu, Ruixi Cheng   +10 more
wiley   +1 more source

Comparison of Seismic Site Factor Models Based on Equivalent Linear and Nonlinear Analyses and Correction Factors for Updating Equivalent Linear Results for Charleston, South Carolina

Geosciences
In practice, site-specific one-dimensional (1D) seismic site response analyses are conducted to compute surface acceleration time histories considering shear wave velocity profile, modulus reduction, damping, and site-specific ground motions.
Nadarajah Ravichandran, Md. Ariful H. Bhuiyan, Vishnu Saketh Jella, Ashish Bahuguna, Jatheesan Sundararajan   +4 more
doaj   +1 more source

Progress and development of volume stimulation techniques

Petroleum Exploration and Development, 2018
Based on the theoretical study and field application of volume stimulation in horizontal wells over the past 10 years, the core connotation of volume stimulation was further interpreted.
Yun XU, Qun LEI, Ming CHEN, Qi WU, Nengyu YANG, Dingwei WENG, Deqi LI, Hao JIANG   +7 more
doaj   +1 more source

Microscopic time‐dependent mechanical behavior of shale derived from nanoindentation

Deep Underground Science and Engineering, EarlyView.
This study conducted grid nanoindentation creep tests to systematically analyze the microscopic creep behaviors of shale. Based on the analysis of creep strain rate sensitivity, the primary mechanism of microscopic creep in shale was found to be the extension and closure of microcracks.
Cunbao Li, Shilei Zhong, Heping Xie, Changtai Zhou, Jianjun Hu   +4 more
wiley   +1 more source

Elevated temperature effects on swelling pressure of compacted bentonite

Deep Underground Science and Engineering, EarlyView.
We present a set of new experimental investigations on the effects of elevated temperature on the swelling pressure development of compacted bentonite. This research was motivated by an emerging interest in using bentonite as a plug material in oil and gas well abandonment.
Linhua He, Majid Sedighi, Mojgan Hadi Mosleh, Andrey Jivkov, Jiangfeng Liu   +4 more
wiley   +1 more source

Effect of filling material on dynamic response and energy dissipation in sandstone with double weak interlayers

Results in Engineering
With the extension of China's transportation infrastructure into the complex geological areas in the west, the presence of numerous weak interlayers in the geology has posed significant challenges to the construction of tunnel transportation.
Yanzhe Li, Chuanxin Rong, Zhensen Wang, Yang Wang   +3 more
doaj   +1 more source

Slit tube responses and rock fracture characteristics in slit charge blasting under high in situ stress

Deep Underground Science and Engineering, EarlyView.
In this article, the finite element method‐smoothed particle hydrodynamics adaptive coupling algorithm is applied to numerically simulate and analyze the dynamic response of the slit tube and the crack propagation under high in situ stress. The dynamic response of the slit tube mainly exhibits radial response in the vertical direction of the slit and ...
Zhe Sui, Liyun Yang, Lijun Wu, Chenxi Ding   +3 more
wiley   +1 more source

A new uncertainty analysis method based on geostatistical simulation and a case study

Case Studies in Construction Materials
The stability of slopes might be influenced by numerous uncertainty factors. In this study, three uncertainty factors are considered in the slope stability analysis, which are locations of weak structural surfaces, structures of soil-rock mixtures ...
Zhen Wang, Huanling Wang, Weiya Xu, Desheng Zhu, Wei-Chau Xie   +4 more
doaj   +1 more source

Digital geologic map, petrography and U-Pb geochronology of the Río Santiago Shear Zone, southernmost Sierra Madre Occidental, western Mexico

, 2022
Juan Carlos Castillo Reynoso, Luca Ferrari, Argelia Silva Fragoso, Isidro Loza-Aguirre   +3 more
openalex   +2 more sources

Mechanical and hydraulic behavior of a rock fracture under shear deformation

Earth, Planets and Space, 2014
With regard to crystalline rock that constitutes deep geology, attempts have been made to explore its hydraulic characteristics by focusing on the network of numerous fractures within.
S. Nishiyama, Y. Ohnishi, Hisao Itô, Takao Yano   +3 more
semanticscholar   +1 more source