Inventor
LIU RENTAI
CN3 patents
Patents
3 patentsUS11905352B2Feb 20, 2024
Expansive polymer grouting material for treating high-pressure large-flow-rate karst water inrush and preparation method thereof
UNIV SHANDONG1 citations53
US11085244B2Aug 10, 2021
Anti-collapse jet grouting drill bit with bi-directional rib wings, grouting consolidation system and method
UNIV SHANDONG0 citations46
US12116315B2Oct 15, 2024
Karst channel type water inrush efficient-blocking ultra-high expansion grouting material and preparation and using methods and application thereof
UNIV SHANDONG0 citations39