Patent · US Active

Rock hollow cylinder torsional shear apparatus

US10012577B2 · kind B2 · utility

2Cited by

3References

18Claims

0Family size

Assignee

Institute of Rock and Soil Mechanics, Chinese Academy of Sciences · CN

Inventors

Hui Zhou · Hubei, CN
Jingjing Lu · Hubei, CN
Dawei Hu · Shanghai, CN
Chuanqing Zhang · Hubei, CN
Yue-Wen Jiang · Daxi District, TW
Lei Huang · Duluth, US
Fanjie Yang · Hubei, CN
Yong Zhu · Hong Kong, CN
Yang Gao · Hangzhou City, CN

Key dates

Filing date	Jun 13, 2017
Grant date	Jul 3, 2018
Priority date	—
Expiry date	Jun 13, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01N2203/0075
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention belongs to the technical field of rock mechanics testing equipment, and discloses a rock hollow cylinder torsional shear apparatus which includes a frame, a lifting device, a bottom seat, a confining pressure barrel, an upper seat, a force transmission shaft, a force transmission shaft holder, a torque application structure and a controller. The present invention provides a torsional shear apparatus capable of avoiding mutual interference between axial force application and torque force application.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.