The hemispherical-ended borehole technique is improved for the field stress measurement in a hot rock. It is shown how the original rock stress is determined independently of the thermal stress. A new spherical strain cell of 17 elements is developed for the in-situ measurements. From its successful application at Hishikari gold mine of rock temperature between 50°C and 80°C, it is clarified that the present method can be used effectively in a homogeneous rock mass.
|出版ステータス||Published - 1991 1月 1|
|イベント||7th International Society for Rock Mechanics and Rock Engineering Congress 1991 - Aachen, Germany|
継続期間: 1991 9月 16 → 1991 9月 20
|Other||7th International Society for Rock Mechanics and Rock Engineering Congress 1991|
|Period||91/9/16 → 91/9/20|
ASJC Scopus subject areas