Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11085858 | True triaxial tester with adjustable loading stiffness and test method | Yanchun Yin, Tongbin Zhao, Yubao Zhang, Weiyao Guo, Xingxue Tang +1 more | 2021-08-10 |
| 11078791 | Grouting bolt-cable composite beam and supporting method for advanced support of fractured surrounding rock in deep coal mines | Xuesheng Liu, Deyuan Fan, Kang Yang, Shilin Song, Yunhao Wu +2 more | 2021-08-03 |
| 11067392 | Anchor bolt length determination method based on monitoring of roof rock stratum horizontal extrusion force | Kai Zhou, Fenghai Yu, Tongbin Zhao | 2021-07-20 |
| 11067488 | Inner and outer framework combined variable stiffness rock mechanics tester and testing method | Tongbin Zhao, Yanchun Yin, Minglu Xing, Yue Qiu, Wuwei Zheng +1 more | 2021-07-20 |
| 11041790 | Stress gradient loading test apparatus and method of accurately determining loading energy | Weiyao Guo, Xuebin Gu, Tongbin Zhao | 2021-06-22 |
| 10969314 | Device and method for anchor bolt (cable) supporting structure test and anchoring system performance comprehensive experiment | Tongbin Zhao, Chunlin Li, Minglu Xing, Chen Zhao, Zhi Jun Wang +3 more | 2021-04-06 |