New development of hydraulic fracturing technique for in-situ stress measurement at great depth of mines

2008 ◽  
Vol 15 (6) ◽  
pp. 665-670 ◽  
Author(s):  
Meifeng Cai ◽  
Hua Peng ◽  
Hongguang Ji
Keyword(s):  
Hydraulic Fracturing ◽  
Stress Measurement ◽  
Great Depth ◽  
In Situ Stress ◽  
In Situ Stress Measurement ◽  
New Development

Integrated Application of Three In Situ Stress Measurement Techniques

2011 ◽  
Vol 301-303 ◽  
pp. 949-953
Author(s):  
Yuan Li ◽  
Lan Qiao ◽  
Zhi Li Sui
Keyword(s):  
Acoustic Emission ◽  
Hydraulic Fracturing ◽  
Stress Measurement ◽  
Stress Relief ◽  
In Situ Stress ◽  
In Situ Stresses ◽  
In Situ Stress Measurement ◽  
Iron Mine ◽  
Acoustic Emission Test

The CSIRO overcoring stress relief and hydraulic fracturing methods are the most popular methods used for the measurement of in-situ stress at depth. One major advantage of the CSIRO overcoring stress relief method is that the three dimensional state of stress can be obtained, but the measurement must be done in an excavated tunnel[1]. Hydraulic fracturing method can be carried out on the ground surface, but it assumed that one of the principal stresses direction is vertical[2,3]. In terms of the disadvantages of the two methods, the techniques based on core orientation and acoustic emission behavior of rocks are incorporated in the in-situ stress measurement in order to obtain the in-situ stress conditions at depth in Shuichang Iron Mine. According to the comparison of the measurement data obtained from the acoustic emission test in the laboratory and CSIRO overcoring stress relief measurement in the field, effectiveness of the acoustic emission test is confirmed. In addition, the relationships between in-situ stresses and tectonic settings are analyzed. Finally, the distribution of in-situ stresses in Shuichang Iron Mine is given, which provides a meaningful guideline for the following mining and design.

New development of in-situ stress measurement in Chinese mines

2010 ◽  
pp. 135-142 ◽  
Author(s):  
M Cai ◽  
L Qiao ◽  
C Li ◽  
H Ji ◽  
Z Tan ◽  
...  
Keyword(s):  
Stress Measurement ◽  
In Situ Stress ◽  
In Situ Stress Measurement ◽  
New Development

scholarly journals In-situ Stress Measurement by Hydraulic Fracturing

1987 ◽  
Vol 103 (1187) ◽  
pp. 1-8
Author(s):  
Masayuki KOSUGI ◽  
Michio KURIYAGAWA ◽  
Hideo KOBAYASHI ◽  
Isao MATSUNAGA
Keyword(s):  
Hydraulic Fracturing ◽  
Stress Measurement ◽  
In Situ Stress ◽  
In Situ Stress Measurement

scholarly journals Tunnel in situ stress measurement by hydraulic fracturing based on the iS3 platform

2020 ◽  
Vol 570 ◽  
pp. 052069
Author(s):  
Chen Ziyang ◽  
Zhu Hehua ◽  
Li Xiaojun ◽  
Liu Ruming ◽  
Du Jinyi
Keyword(s):  
Hydraulic Fracturing ◽  
Stress Measurement ◽  
In Situ Stress ◽  
In Situ Stress Measurement

New development of in-situ stress measurement in Chinese mines

2010 ◽  
pp. 135-142
Author(s):  
M Cai ◽  
L Qiao ◽  
C Li ◽  
H Ji ◽  
Z Tan ◽  
...  
Keyword(s):  
Stress Measurement ◽  
In Situ Stress ◽  
In Situ Stress Measurement ◽  
New Development

IN-SITU STRESS MEASUREMENT BY OVERCORING AND HYDRAULIC FRACTURING OF PAHANG-SELANGOR RAW WATER TRANSFER PROJECT

2016 ◽  
Vol 78 (8-6) ◽  
Author(s):  
Romziah Azit ◽  
Mohd Ashraf Mohamad Ismail ◽  
Norzani Mahmood
Keyword(s):  
Hydraulic Fracturing ◽  
Stress Measurement ◽  
Vertical Direction ◽  
In Situ Stress ◽  
Peninsular Malaysia ◽  
Water Transfer ◽  
Vertical Stress ◽  
Raw Water ◽  
In Situ Stress Measurement

Estimation of in-situ stress orientation and magnitude is necessary for assessing the excavation risks for Pahang-Selangor Raw Water Transfer (PSRWT) tunnel project. However, the in-situ stress state of the rock generally differs according to area and depth. Therefore, the in-situ stress measurements test in the tunnel are determined in three (3) locations, which are at Adit 2, TBM 2, and Adit 3, in which the overburdens are 227, 1130, and 570 m, respectively. The stress relief method of overcoring technique and hydraulic fracturing by high stiffness system were applied for this project. The results demonstrate that the existence of high vertical stress was estimated in particular in the TBM 2. The maximum principal stress is determined nearly along the vertical direction. Meanwhile, the stress in the horizontal plane is relatively small, and the horizontal to vertical stress ratio is less than one (1). The direction of the horizontal stress obtained is N8E, N14W, and N41E. Results indicate that this method is suitable for estimating in-situ stresses in deep tunnels. The above data and their interpretations enhance the stress database for Peninsular Malaysia

Application of hydraulic fracturing to three-dimensional in situ stress measurement

1989 ◽  
Vol 26 (6) ◽  
pp. 587-593 ◽  
Author(s):  
M. Kuriyagawa ◽  
H. Kobayashi ◽  
I. Matsunaga ◽  
T. Yamaguchi ◽  
K. Hibiya
Keyword(s):  
Hydraulic Fracturing ◽  
Stress Measurement ◽  
Three Dimensional ◽  
In Situ Stress ◽  
In Situ Stress Measurement
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