2016 Fiscal Year Final Research Report
Exploring generation mechanism of earthquake through a constitutive law for rock incorporating decay and healing of fracture
| Project/Area Number |
15K14030
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Geotechnical engineering
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2015-04-01 – 2017-03-31
|
| Keywords | 地盤工学 / 岩盤工学 / フラクチャーの劣化と回復 / 三軸試験 / 構成則 / 断層の繰返しメカニズム |
|---|
| Outline of Final Research Achievements |
The fault slip has been considered as the rate- and state dependent friction in the seismology. In this research work, the Slide-Hold-Slide triaxial on sedimentary rock has been carried out and the friction law has been reconsidered and re-estimated as the interaction of the dilatancy behavior and pore pressure (effective stress). A continuum constitutive model for rocks incorporating the healing and decay of structure considering variable strength and dilatancy based on critical state theory has been developed. The proposed model is verified with experimental slide-hold-slide triaxial tests on soft sedimentary rock and the potential applications of the proposed model in the numerical simulation of faulting have been discussed.
|
| Free Research Field |
地盤工学
|
