Effect of Morphology Parameter Determination on Contact Behavior of Rock Joints under Compressive Loading
The closure behavior of rock joints is of critical importance to the study of hydromechanical behaviors and geophysical properties of jointed rock masses. Theoretical contact models, used to predict the relations of normal stress versus closure deformation, rely on morphology parameters of rock join...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6669422 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561544672575488 |
|---|---|
| author | Feng Tian Tang Zhi Cheng Tang |
| author_facet | Feng Tian Tang Zhi Cheng Tang |
| author_sort | Feng Tian Tang |
| collection | DOAJ |
| description | The closure behavior of rock joints is of critical importance to the study of hydromechanical behaviors and geophysical properties of jointed rock masses. Theoretical contact models, used to predict the relations of normal stress versus closure deformation, rely on morphology parameters of rock joint as the input parameters. The relevance of the contact models depends on the inherent assumptions and the accuracy with which the input parameters are determined. In the present study, morphology parameters of three rock joints are determined by the spectral moment approach and peak identification method, respectively. The differences are found to vary significantly depending on the selected method. The phenomenon would be related to the definition of an asperity peak on joint profile. The spectral method only considers the so-called asperity peaks, while the deterministic approach further accounts for the asperity shoulders. Finally, the morphology parameters determined by the two methods are treated as the input parameters of a validated theoretical model. The comparisons between the theoretical curves and the experimental results indicate that parameters determined by the deterministic method would be more reliable. |
| format | Article |
| id | doaj-art-0d2cf44c35dc489da899ec8c9b70d1ed |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-0d2cf44c35dc489da899ec8c9b70d1ed2025-02-03T01:24:45ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66694226669422Effect of Morphology Parameter Determination on Contact Behavior of Rock Joints under Compressive LoadingFeng Tian Tang0Zhi Cheng Tang1Faculty of Engineering, China University of Geosciences, Wuhan 430074, Hubei, ChinaFaculty of Engineering, China University of Geosciences, Wuhan 430074, Hubei, ChinaThe closure behavior of rock joints is of critical importance to the study of hydromechanical behaviors and geophysical properties of jointed rock masses. Theoretical contact models, used to predict the relations of normal stress versus closure deformation, rely on morphology parameters of rock joint as the input parameters. The relevance of the contact models depends on the inherent assumptions and the accuracy with which the input parameters are determined. In the present study, morphology parameters of three rock joints are determined by the spectral moment approach and peak identification method, respectively. The differences are found to vary significantly depending on the selected method. The phenomenon would be related to the definition of an asperity peak on joint profile. The spectral method only considers the so-called asperity peaks, while the deterministic approach further accounts for the asperity shoulders. Finally, the morphology parameters determined by the two methods are treated as the input parameters of a validated theoretical model. The comparisons between the theoretical curves and the experimental results indicate that parameters determined by the deterministic method would be more reliable.http://dx.doi.org/10.1155/2021/6669422 |
| spellingShingle | Feng Tian Tang Zhi Cheng Tang Effect of Morphology Parameter Determination on Contact Behavior of Rock Joints under Compressive Loading Advances in Civil Engineering |
| title | Effect of Morphology Parameter Determination on Contact Behavior of Rock Joints under Compressive Loading |
| title_full | Effect of Morphology Parameter Determination on Contact Behavior of Rock Joints under Compressive Loading |
| title_fullStr | Effect of Morphology Parameter Determination on Contact Behavior of Rock Joints under Compressive Loading |
| title_full_unstemmed | Effect of Morphology Parameter Determination on Contact Behavior of Rock Joints under Compressive Loading |
| title_short | Effect of Morphology Parameter Determination on Contact Behavior of Rock Joints under Compressive Loading |
| title_sort | effect of morphology parameter determination on contact behavior of rock joints under compressive loading |
| url | http://dx.doi.org/10.1155/2021/6669422 |
| work_keys_str_mv | AT fengtiantang effectofmorphologyparameterdeterminationoncontactbehaviorofrockjointsundercompressiveloading AT zhichengtang effectofmorphologyparameterdeterminationoncontactbehaviorofrockjointsundercompressiveloading |