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. 11, 2025
Filed:
Jul. 21, 2022
Fuzhou University, Fuzhou, CN;
East China Survey and Design Institute (Fujian) Co., Ltd., Fuzhou, CN;
Zhibo Chen, Fuzhou, CN;
Jinyang Cai, Fuzhou, CN;
Hui Yang, Fuzhou, CN;
Yongning Xie, Fuzhou, CN;
Xuming Zeng, Fuzhou, CN;
Shenggui Pan, Fuzhou, CN;
FUZHOU UNIVERSITY, Fuzhou, CN;
EAST CHINA SURVEY AND DESIGN INSTITUTE (FUJIAN) CO., LTD., Fuzhou, CN;
Abstract
A large-scale direct shear apparatus for direct shear test of multi-size cylindrical undisturbed soil samples, comprising an external framework, a sample shear box, a horizontal loading device, a vertical loading device, and a control system. The sample shear box is disposed within the external framework and includes an upper shear box, a lower shear box, and a base. The horizontal loading device includes a horizontal drive motor equipped with a load sensor, a horizontal mechanical loading mechanism, and an upper shear box connection structure. The horizontal drive motor is installed on one inner side of the external framework and contacts the lower shear box via the horizontal mechanical loading mechanism. The upper shear box connection structure is fixed to the other inner side of the external framework and contacts the upper shear box. The vertical loading device includes a vertical drive motor and a vertical mechanical loading mechanism.