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:
Feb. 09, 2021
Filed:
Apr. 08, 2019
China University of Geosciences (Wuhan), Wuhan, CN;
Junpeng Zou, Wuhan, CN;
Yuyong Jiao, Wuhan, CN;
Zeyang Wu, Wuhan, CN;
Aiguo Yao, Wuhan, CN;
Fei Tan, Wuhan, CN;
Yi Cheng, Wuhan, CN;
Jin Luo, Wuhan, CN;
Hao Wang, Wuhan, CN;
Guohua Zhang, Wuhan, CN;
CHINA UNIVERSITY OF GEOSCIENCES (WUHAN), Wuhan, CN;
Abstract
A high-efficiency pre-drilling pressure meter test apparatus for deep rock mass includes a rigid drill pipe, a probe, a pressurizing device and a signal processing device. The rigid drill pipe, comprising a top end and a tail end opposite to the top end, receives a fluid medium. The probe is connected with the tail end of the rigid drill pipe and communicates with the rigid drill pipe. The probe includes a measuring chamber. The fluid medium flows from the rigid drill pipe to the measuring chamber. The pressurizing device is connected to the top end of the rigid drill pipe and applies pressure to the fluid medium. The signal processing device is electrically connected with the probe to detect deformation of the measuring chamber with the change of the pressure and volume of the fluid medium in the pressurizing device.