Compact conical-ended borehole overcoring (CCBO) is proposed for in situ rock stress measurement applicable to the faulted and highly jointed rock formations. Apparatus and operating procedure are described in detail. The observation equation on the stress tensor to be used in practice is presented, along with the possible ways for representing and interpreting the results. Thus, it is stated how the three dimensional state of in situ rock stress is determined from the strains on the conical end surface of a single borehole. The error in stress and stresses in an isotropic or transversely isotropic rock mass are obtained. Additionally, the reliability and the applicability of the present technique is successfully verified from the case stud...
Methods for determining in situ stresses are reviewed, and a new approach is proposed for a better p...
Core disking is sometimes observed in high stress region where rock stress measurements are performe...
A new and still experimental method for measuring the absolute in-situ stress field in crustal rocks...
AbstractThe strain gauge probes of different construction are typically used for determination of st...
The strain gauge probes of different construction are typically used for determination of stress sta...
AbstractThe strain gauge probes of different construction are typically used for determination of st...
Accurate determination of rock stress in great depths has become one of the most critical issues in ...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
A method for measurement of stress change is suggested to monitor rock stress using a borehole. The ...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
International audienceThis paper describes a field experiment of stress measurement using the overco...
Overcoring stress analysis (Leeman 1964) belongs to the borehole relief methods (Amadei and Stephans...
Methods for determining in situ stresses are reviewed, and a new approach is proposed for a better p...
Core disking is sometimes observed in high stress region where rock stress measurements are performe...
A new and still experimental method for measuring the absolute in-situ stress field in crustal rocks...
AbstractThe strain gauge probes of different construction are typically used for determination of st...
The strain gauge probes of different construction are typically used for determination of stress sta...
AbstractThe strain gauge probes of different construction are typically used for determination of st...
Accurate determination of rock stress in great depths has become one of the most critical issues in ...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
A method for measurement of stress change is suggested to monitor rock stress using a borehole. The ...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
Knowledge of the in situ stress state of rock mass is fundamental for engineering, geological and ge...
International audienceThis paper describes a field experiment of stress measurement using the overco...
Overcoring stress analysis (Leeman 1964) belongs to the borehole relief methods (Amadei and Stephans...
Methods for determining in situ stresses are reviewed, and a new approach is proposed for a better p...
Core disking is sometimes observed in high stress region where rock stress measurements are performe...
A new and still experimental method for measuring the absolute in-situ stress field in crustal rocks...