Invention Grant
- Patent Title: Type of energy-absorbing rock bolt device with umbrella-shaped structure
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Application No.: US17167363Application Date: 2021-02-04
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Publication No.: US11268383B2Publication Date: 2022-03-08
- Inventor: Songfeng Guo , Shengwen Qi , Shishu Zhang , Xingdong Ma , Guoqing Yuan , Xiuhua Wang , Bowen Zheng , Yu Zou , Xiaolin Huang , Ning Liang , Hang Li , Yubo Liu , Jianxian He , Xianglong Yao , Daping Tai , Guangming Luo
- Applicant: Institute Of Geology And Geophysics, Chinese Academy Of Sciences
- Applicant Address: CN Beijing
- Assignee: Institute Of Geology And Geophysics, Chinese Academy Of Sciences
- Current Assignee: Institute Of Geology And Geophysics, Chinese Academy Of Sciences
- Current Assignee Address: CN Beijing
- Agency: WPAT, PC
- Priority: CN202010654811.9 20200709
- Main IPC: E21D21/00
- IPC: E21D21/00
Abstract:
The present invention discloses a type of energy-absorbing rock bolt device with umbrella-shaped structure, which consists of a body of bolt, and one end of the said body of bolt is equipped with a preloaded system, as well as the other end of the said body of bolt is equipped with the first support system, in addition, the said body of bolt is equipped with several second support systems, and the said second support system is located between the said preloaded system and the said first support system; meanwhile, the said second support system consists of the first umbrella-shaped support system and the second umbrella support system.
Public/Granted literature
- US20220010681A1 TYPE OF ENERGY-ABSORBING ROCK BOLT DEVICE WITH UMBRELLA-SHAPED STRUCTURE Public/Granted day:2022-01-13
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