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Patents Grantslast 30 patents

Information Patent Grant
Method for deformation control of large-span tunnel in chlorite sch...
- Patent number 10,280,749
- Issue date May 7, 2019
- CHANG'AN UNIVERISTY
- Jianxun Chen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
TUNNEL CONSTRAINT ANCHOR CABLE AND METHOD FOR IMPROVING STABILITY O...
- Publication number 20240368991
- Publication date Nov 7, 2024
- CHANG'AN UNIVERSITY
- Jianxun CHEN
- E21 - EARTH DRILLING MINING
Information Patent Application
DESIGN METHOD FOR PARAMETERS OF CROSS SECTIONS OF SINGLE-HOLE FOUR-...
- Publication number 20220292238
- Publication date Sep 15, 2022
- CHANG'AN UNIVERSITY
- Yanbin LUO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ECONOMICAL HIGH-STRENGTH QUICK-HARDENING GROUTING MATERIAL AND GROU...
- Publication number 20210070660
- Publication date Mar 11, 2021
- Chang'an University
- Jianxun CHEN
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Method for Deformation Control of Large-span Tunnel in Chlorite Sch...
- Publication number 20190071968
- Publication date Mar 7, 2019
- CHANG'AN UNIVERSITY
- Jianxun CHEN
- E21 - EARTH DRILLING MINING