A self-drilling acoustic-lateral pressure-shearing in-hole in-situ tester and test method
The design of a self-drilling acoustic-pressure-shear in-situ testing instrument solves the problem of efficient drilling and synchronous testing in deep overburden layers, realizing efficient and accurate multi-functional in-situ testing, suitable for obtaining physical and mechanical parameters of deep overburden layers.
Patent Information
- Application Number
- CN202610219948.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing in-situ borehole testing instruments struggle to achieve efficient drilling, synchronous shearing, pressure-side testing, and high-resolution acoustic imaging in deep overburden layers. Furthermore, the test results exhibit poor correlation, the drill rod is prone to deviation, and real-time monitoring and correction are impossible. The equipment also suffers from insufficient functional integration and testing efficiency.
Design a self-drilling acoustic-pressure-shear in-situ borehole testing instrument that integrates a drill bit, a support pipe pressurization system, a shear testing system, and an acoustic testing system. Equipped with a deviation correction system and a multi-layer composite pressure-side membrane, it achieves synchronous drilling, shearing, pressure-side testing, and acoustic imaging. It utilizes an ultrasonic probe for 360° imaging and combines dynamic deviation correction control with a high-pressure water jet system.
It enables efficient drilling and simultaneous testing in deep overburden layers, improving the accuracy and efficiency of test results, adapting to complex formations, and ensuring drilling precision and test result accuracy.
Smart Images
Figure CN122407157A_ABST