2014 Fiscal Year Final Research Report
Development of conceptual model describing long-term evolution of permeability in fractured rocks under coupled thermo-hydro-mechano-chemical conditions
| Project/Area Number |
23360401
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Earth system and resources enginnering
|
|---|
| Research Institution | Ehime University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2011-04-01 – 2015-03-31
|
| Keywords | 岩盤 / 透水特性 / 鉱物溶解・沈殿 |
|---|
| Outline of Final Research Achievements |
This study has examined a long-term evolution of permeability in fractured rocks under various stress and temperature conditions. The experimental observations show that the permeability decreases with time and the rate and the magnitude of the changes are more significant at higher temperature, which should result from the geochemical reactions such as mineral dissolution and precipitation. I have developed a numerical model that predicts the long-term evolution of permeability under arbitrary stress and temperature conditions. The predictions agree with the experimental measurements, indicating the validity of the developed model.
|
| Free Research Field |
岩盤力学
|
