# Study on Mechanical Behavior of a New Three-Dimensional Sensor Under Rock Rheology
## 5 Conclusions  
Based on the principle of rock mass flow stress recovery, the full stress monitoring and analysis of surrounding rock drilling has undergone theoretical analysis, mechanical performance analysis, experimental analysis and numerical analysis. Finally, the following conclusions can be obtained:  
1. Through the theoretical analysis of rock mechanics and elastic mechanics, it is proved that the function of rock mass rheological borehole stress recovery principle for surrounding rock stress monitoring can be realized, and the surrounding rock stress can be monitored for a long time; the three-dimensional borehole total stress monitor can reflect the size and direction of the six principal stresses of the surrounding rock stress through eight measuring points.
2. Through the structural design and mechanical performance analysis of the three-dimensional borehole full stress monitor, it is proved that the pressure film sensing element of the three-dimensional borehole full stress monitor can linearly reflect the change in the stress of the surrounding rock of the borehole wall and transmit it to the pressure detection core.
3. Through the numerical simulation of the flow stress recovery of the surrounding rock mass, it is further verified that the principle of rock mass flow stress recovery can realize the long-term monitoring function of the three-dimensional total stress meter in the borehole. The CAE numerical simulation of the three-dimensional borehole full stress monitor is carried out. It is further demonstrated that the linearity and sensitivity of the force transmission components of the monitor are good, the shell stiffness is satisfied and the function of real-time surrounding rock stress monitoring can be realized.  
Three-dimensional borehole total stress monitoring provides a new scheme for surrounding rock stress measurement, which is of great significance to underground stress monitoring such as in situ stress measurement and rock burst. However, the new equipment is still in the design and development stage, and further experimental research and a large number of field tests are needed to continuously optimize the feasibility of the measurement scheme and the accuracy of the measurement data.  
For the calibration of the sensor's eight measurement points, we expect to develop and implement standardized calibration procedures in the future to ensure a uniform response for all sensors, including individual calibrations based on known loading conditions. Through continuous monitoring, regular recalibration and cross-validation with other sensors, the long-term consistency of the eight measuring points of the sensor is verified. We are convinced that these steps can enable the sensor to maintain consistent performance  
Figure 17: Three-dimensional borehole stress monitor 10–30 MPa hydrostatic pressure results (stress field, displacement field and displacement contour) ((a)—10 MPa, (b)—20 MPa, (c)—30 MPa).  
at different times and conditions, thereby improving the overall reliability and accuracy of the monitoring system.  
Conceptualization, J.X. and T.W.; methodology, J.X. and T.W.; software, T.W. and Y.W. ([PERSON]); validation, T.W. and Y.L.; formal analysis, Y.W. ([PERSON]); investigation, Y.L. and B.Z.; resources, J.X.; data curation, T.W. and Y.W. ([PERSON]); writing--original draft preparation, T.W. and J.W.; writing--review and editing, J.W. and Y.W. ([PERSON]). All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.  
Not applicable.  
The data used to support the findings of this study are available from the corresponding author upon request.  
The authors declare no conflicts of interest.