摘要
This study, supported by the Science and Technology Project of China （grant no. WFSD-00003）, focuses on the in-situ stress measurements in the WFSD-I borehole and has achieved considerable progress. Stress is defined as the natural stress existing between rocks in the Earth＇s crust, and in-situ stress measurements are the main methods used to obtain records of the stress state. The Wenchuan Fault Scientific Drilling （WFSD） project used differential strain analysis （DSA） to confirm in-situ stress measurements.
This study, supported by the Science and Technology Project of China （grant no. WFSD-00003）, focuses on the in-situ stress measurements in the WFSD-I borehole and has achieved considerable progress. Stress is defined as the natural stress existing between rocks in the Earth＇s crust, and in-situ stress measurements are the main methods used to obtain records of the stress state. The Wenchuan Fault Scientific Drilling （WFSD） project used differential strain analysis （DSA） to confirm in-situ stress measurements.
