Abstract
Digital drilling tests provide a new means to realise the real-time acquisition of surrounding rock parameters. In situ rock drilling can provide more reliable strength quality parameters for rocks compared with indoor experiments. Moreover, it is more capable than existing in situ rock testing methods, such as point load and cone penetration tests. This paper introduces an independently developed digital drilling test system for real triaxial rock indoors and carries out digital drilling tests of different lithological materials based on this system. The result shows that the indoor digital drilling test system has good monitoring performance and high stability in the drilling speed – steady revolution speed control mode. An active quantitative control test, a standard for constant drilling and rotation speed, is proposed, which has practical application.
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