LAPSE:2023.35897
Published Article
LAPSE:2023.35897
Study on the Compressive and Tensile Properties of Gneiss Outcrop of Bozhong 196 Gas Field in China
Lianzhi Yang, Tong Niu, Fanmin He, Zhiyong Song
May 26, 2023
In this paper, based on the gneiss outcrop of Bozhong 196 gas field in China, uniaxial compression and Brazil splitting tests were conducted by using cores of different orientations. The following compression properties were studied: the elastic compression modulus, Poisson’s ratio and compressive strength of the gneiss outcrop. The following tensile properties were studied: the tensile modulus, the tensile strength and peak energy rate of gneiss outcrop. The results demonstrate the following: (1) The elastic compression modulus, compressive strength, tensile strength and peak energy rate of gneiss specimens with horizontal core-taking are greater than those with vertical core-taking. (2) The elastic compression modulus, Poisson’s ratio and compressive strength of horizontally cored gneiss specimens are 29.688−45.760 GPa, 0.186−0.386, and 174.94−147.80 MPa, respectively; the elastic compression modulus, Poisson’s ratio and compressive strength of the vertical gneiss specimens are 26.541−32.602 GPa, 0.429−0.476 and 169.37−134.46 MPa. (3) The tensile modulus of the horizontal gneiss specimens is 4.93−5.98 GPa. The tensile modulus of the vertical gneiss specimens is 0.96−2.11 GPa. The tensile modulus of the horizontal gneiss specimens is five times that of the vertical gneiss specimens. The elastic compression modulus of gneiss is 5−20 times that of the tensile modulus. (4) The tensile strength and peak energy rate of horizontally cored gneiss specimens are 14.33−17.55 MPa and 2598.67−4049.53 J/m2, respectively. The tensile strength of the vertical gneiss specimens is 6.12−9.65 MPa, and the peak energy rate is 715.74−1515.30 J/m2. (5) There is a good linear relationship between the peak energy rate and tensile strength of gneiss. The research results can provide a scientific and reasonable reference for in situ fracturing of Bozhong 196 gas field.
Keywords
Brazilian splitting, compressive strength, energy of fracture, tensile strength, uniaxial compression
Subject
Suggested Citation
Yang L, Niu T, He F, Song Z. Study on the Compressive and Tensile Properties of Gneiss Outcrop of Bozhong 196 Gas Field in China. (2023). LAPSE:2023.35897
Author Affiliations
Yang L: School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
Niu T: School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China [ORCID]
He F: Chengdu Surveying Geotechnical Research Institute Co., Ltd. of MCC, Chengdu 610023, China
Song Z: School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
Journal Name
Energies
Volume
16
Issue
9
First Page
3919
Year
2023
Publication Date
2023-05-06
Published Version
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en16093919, Publication Type: Journal Article
Record Map
Published Article

LAPSE:2023.35897
This Record
External Link

doi:10.3390/en16093919
Publisher Version
Download
Files
[Download 1v1.pdf] (4.2 MB)
May 26, 2023
Main Article
License
CC BY 4.0
Meta
Record Statistics
Record Views
166
Version History
[v1] (Original Submission)
May 26, 2023
 
Verified by curator on
May 26, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.35897
 
Original Submitter
Calvin Tsay
Links to Related Works
Directly Related to This Work
Publisher Version