Results 51 to 60 of about 1,938,015 (214)

Contemporary stress in northern Italy: how leak off data depict a compressive tectonic setting

, 2013
The knowledge of present day stress magnitude is often crucial to understand the behavior of natural systems. Not only relative magnitudes but also absolute values are important parameters that help the improvement of physical models, notwithstanding ...
Mariucci, M. T., Montone, P.
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Quantitative evaluation of maximum operating pressure and storage capacity for gas-top sandstone reservoir-type gas storage

Dizhi lixue xuebao
Objective  The maximum operating pressure for underground gas storage facilities designed for oil and gas reservoirs, both constructed and under construction in China, is currently set at the original formation pressure.
HU Caiyun, LI Cong, YANG Zhibin, JIA Qian, SUN Yanchun, LI Chaofeng, SUN Junchang, YANG Yuehui, SUN Dongsheng   +8 more
doaj   +1 more source

Inversion Method of In-situ Stress and Rock Damage Characteristics in Dam Site Using Neural Network and Numerical Simulation—A Case Study

IEEE Access, 2020
In mountain and ravine region of southwest China, several hydropower stations have been built in this area. It is the main national base for hydropower energy development, but under the influence of geological structure and surface erosion, the in-situ ...
Gan Li, Yu Hu, Qing-Bin Li, Tao Yin, Jian-Xin Miao, Mengdi Yao   +5 more
doaj   +1 more source

Study on influence of natural fractures on initiaition and propagation of hydraulic fracturing coal

Meitan kexue jishu
Hydraulic fracturing is one of the effective methods to improve the extraction efficiency and gas production of low-permeability coal seams with high gas content.
Changbao JIANG, Yihao YANG, Huihui LIU, Jianquan GUO, Yinlan FU, Jiayao WU   +5 more
doaj   +1 more source

Numerical simulation study on liquid CO2 phase transition blasting under the action of in-situ stress

Meikuang Anquan
In order to clarify the mechanical properties and failure mechanism of coal (rock) under high ground stress conditions, a theoretical model was used to analyze the stress field distribution under the coupling effect of ground stress and CO2 phase change ...
Yan WANG
doaj   +1 more source

Rock deformation memory effect: applications, experiments and theories

Yantu gongcheng xuebao, 2018
Based on the rock deformation memory effect (DME), the deformation rate analysis (DRA) method is a new method for determining the magnitudes and orientation of the in-situ stress.
WANG Hai-jun 1, TANG Lei 1, REN Xu-hua 2, ZHONG Ling-wei 2, SI Fu-an 3, HSIEH Ariel 4
doaj   +1 more source

How do borehole observations characterize crustal stress?

Dizhi lixue xuebao
Objective  Knowing the in-situ stress state is of great importance for understanding a wide range of geomechanical processes in the Earth’s crust, and for addressing many practical problems in the subsurface.
MA Xiaodong
doaj   +1 more source

Influences of size effect and in-situ stress of columnar jointed basalt relaxation zone

Yantu gongcheng xuebao, 2018
To investigate the influences of size effect and in-situ stress of columnar jointed basalt relaxation zone, 8 typical tunnels with different sizes are selected, and an empirical formula for relaxation depth is established based on the data statistics and
WANG Peng 1, HONG Wang-bing 1, SONG Gang 2
doaj   +1 more source

In-situ stress characteristics in the project area of a large hydropower station on the northern margin of the eastern Himalayan syntaxis

Dizhi lixue xuebao
Objective  We analyzed and evaluated the in-situ stress distribution characteristics and fault stability in the project area of a large hydropower station on the northern margin of the eastern Himalayan syntaxis.
WANG Bin, DONG Zhihong, LIU Yuankun, FU Ping, HAN Xiaoyu, AI Kai, ZHOU Chunhua, ZHANG Xinhui, LUO Sheng, YANG Yuehui   +9 more
doaj   +1 more source

Stress State Change Monitoring Using Displacement Change Measurements

, 2016
A method to back calculate stress state change was developed in Dynamic Control of Underground Mining Operations (DynaMine) research project. The purpose of this method is to provide real-time estimates of the stress state change caused by excavation. In
Uotinen, Lauri, Ritala, Frans, Siren, Topias   +2 more
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