Core-drilling device and method of rock cores containing hollow inclusions in three-dimensional ground stress measurement

The invention discloses a core-drilling device of rock cores containing hollow inclusions in three-dimensional ground stress measurement. The core-drilling device comprises a connector, the connector is connected to a core-drilling cylinder, and a wedge-shaped cutting block is arranged in the core-drilling cylinder. The connector is an external thread connector. The core-drilling cylinder is of a half-cylinder shape. One end surface of the wedge-shaped cutting block is a wedge-shaped surface, the other end of the wedge-shaped cutting block is connected to the connector, and the bottom of the wedge-shaped cutting block is welded to the core-drilling cylinder. The invention further discloses a core-drilling method of the rock cores containing the hollow inclusions in three-dimensional ground stress measurement. The core-drilling method comprises the steps of measuring the positions of the rock cores; pushing the core-drilling device; breaking the rock cores containing the inclusions; and taking out the rock cores containing the inclusions. According to the invention, the rock cores containing the inclusions can be broken smoothly, the problem that inclusion cables are wound and broken due to excessive relieving can be avoided, the measurement success rate can be increased, the relieving length and the breaking positions of the rock cores can be manually controlled, the core-drilling time can be shortened, and the measurement efficiency can be improved.