The invention belongs to the technical field of rock and
soil mechanics measurement, and particularly discloses a
deep drilling complex environment local wall face
stress relieving method testing system. The
system comprises an electronic control acquisition subsystem, a pushing and positioning mechanism, a
stress relief and
strain measurement subsystem and a hydraulic balance subsystem which are connected in sequence, the electronic control acquisition subsystem is connected with a ground controller through communication
transmission equipment, the pushing and positioning mechanism is expanded in the radial direction of a center shaft of a
drill hole to form a fulcrum and in contact with a well wall, the
stress relief and
strain measurement subsystem is used for collecting and obtaining strain data of the well wall of a drilling well in the
stress relief process, and the hydraulic balance subsystem is used for balancing the internal space of the whole
system and the pressure intensity in the drilling well. According to the system, accurately controlling and testing can be carried out on a local wall face with the depth of 3000 meters or above on the ground,
automatic control and real-time transmission of
test data in a
deep drilling complex environment are realized, collapse danger of the drilling well is not easily caused, and the system has the characteristics of simplicity in operation, effectiveness, stability, convenience in maintenance and the like.