The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2025
Filed:
Aug. 05, 2024
Chengdu University of Technology, Chengdu, CN;
Guangdong Eagler Geological Equipment Technology Co., Ltd., Zhuhai, CN;
Wenkai Feng, Chengdu, CN;
Xiaoyu Yi, Chengdu, CN;
Xuyong Liu, Zhuhai, CN;
Yihe Li, Chengdu, CN;
Qian Li, Chengdu, CN;
Ke Wan, Chengdu, CN;
Chengdu University Of Technology, Chengdu, CN;
Guangdong Eagler Geological Equipement Technology CO., LTD., Zhuhai, CN;
Abstract
A borehole wall spin-shearing device includes a load applying assembly, a soil shearing assembly, and a data acquisition assembly, where the load applying assembly is configured to apply a vertical load and an axial rotational load to the soil shearing assembly; the soil shearing assembly includes a plurality of shear plates; the plurality of shear plates are configured to penetrate into undisturbed soil after being ejected due to the vertical load and then shear the undisturbed soil due to the axial rotational load; and the data acquisition assembly is configured to acquire torque values of the plurality of shear plates during a process of shearing the undisturbed soil. The borehole wall spin-shearing device can directly conduct an in-situ borehole shear test in an exploration borehole with a conventional diameter in China, reducing the cost of drilling. The borehole wall spin-shearing device achieves a high degree of automation throughout the test.