Results 1 to 10 of about 118,482,436 (243)

DIC-hole drilling method for in-situ residual stress measurement [PDF]

MATEC Web of Conferences, 2019
Residual stress measurement carries an important significance in ensuring safety and reliability of steel structures. In order to simplify the measurement procedure and enhance flexibility of the conventional hole drilling method to adopt in in-situ ...
Peng Yang, Zhao Jun, Chen Lan-shu, Dong Jun   +3 more
doaj   +4 more sources

Development and research of in-situ stress parameters database for underground coal mines of China

Meikuang Anquan, 2021
Underground 1379 in-situ stress measurement items in underground coal mines of China was collected, including 928 items of the hydraulic fracturing, 427 items of stress release, 24 items of acoustic emission.
YI Bingding
doaj   +2 more sources

Research into using a fiber Bragg grating sensor group for three-dimensional in situ stress measurement [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2022
The observation and estimation of the deep crustal stress state is a key and difficult problem for in situ stress measurement. Using a borehole wall strain gauge based on the overcoring stress-relieving method is one of the main methods of in situ stress
Y. Liu, Y. Liu, Y. Liu, Z. Hou, H. Zhou, G. Gao, L. Yang, L. Yang, P. Wang, P. Wang, P. Wang   +10 more
doaj   +1 more source

In-situ stress measurement and inversion analysis of the deep shaft project area in Sanshan Island based on hydraulic fracturing method

Dizhi lixue xuebao, 2023
The proposed 2000-meter-deep auxiliary shaft at the Xiling mine, Sanshan Island, Shandong Province, is an ultra-deep shaft construction project. Revealing the characteristics of the in-situ stress field in the shaft construction area is one of the ...
ZHU Mingde, WANG Zhaoya, ZHANG Yuezheng, LI Wenguang, HOU Kuikui, JI Hongguang, YIN Yantian, FU Zhen, HAO Yingjie   +8 more
doaj   +1 more source

A novel in situ stress measurement method based on acoustic emission Kaiser effect: a theoretical and experimental study [PDF]

Royal Society Open Science, 2018
Measurement of in situ stress is critical to understand the deformation and destruction of the underground space surrounding rock, and dynamic disaster of the coal mine.
Xin Bai, Dong-ming Zhang, Hao Wang, Shu-jian Li, Zi Rao   +4 more
doaj   +1 more source

Application of the in-situ stress testing technology for the design of operating pressure of underground gas storage reservoir

Frontiers in Earth Science, 2023
The appropriate design of the operating pressure of underground gas storages (UGSs) is of great significance to their safe and profitable operation. In situ stress is basic data for determining the upper limit pressure of UGSs, analyzing fault stability ...
Qun-yi Wang, Lin Shang, Chun-yan Xin, Yan-chun Sun, Guang-liang Gao, Miao Wang, Xiao Gu   +6 more
doaj   +1 more source

Estimation Method for an In Situ Stress Field along a Super-Long and Deep-Buried Tunnel and Its Application

Buildings, 2023
Aiming at some stress-induced failure phenomena in surrounding rock that occur during the construction of super-long and deep-buried tunnels, a method for estimating the in situ stress in the tunnels based on multivariate information integration is ...
Qitao Pei, Xiaonan Wang, Lihong He, Lu Liu, Yong Tian, Cai Wu   +5 more
doaj   +1 more source

In-situ stress measurement and inversion analysis of a large hydropower project in southeast Tibet

Dizhi lixue xuebao, 2023
As a control and regulating project, the hydropower station in the Yigongzangbu basin of Tibet plays a vital role in meeting the electricity demand of the Tibetan power grid.
LI Zhengzheng, YANG Wenchao, ZHANG Peng, LI Changhu, FAN Yulu   +4 more
doaj   +1 more source

Research on stress state in deep shale reservoirs based on in-situ stress measurement and rheological model

Dizhi lixue xuebao, 2022
Accurately determining the stress state in deep shale reservoirs is the key to the efficient development of shale gas and other unconventional energy sources.
MENG Wen, TIAN Tao, SUN Dongsheng, YANG Yuehui, LI Ran, CHEN Qunce   +5 more
doaj   +1 more source

In-situ stress characteristics and rockburst tendency of surrounding rocks in the Shuiwangzhuang gold deposit, Zhaoyuan, Shandong province

Dizhi lixue xuebao, 2023
We carried out hydraulic fracturing in-situ stress measurements in an 1881-m deep borehole at the Shuiwangzhuang gold deposit and obtained the variation law of deep in-situ stress with depth in the mining area.
LIU Luyong, LI Kaizhou, WANG Nengwei, YANG Zhijie, YANG Dongming, SUN Yao   +5 more
doaj   +1 more source