一种富水粉砂层盾构端头土体加固方法及加固结构
By using non-aqueous reactive polyurethane polymers and fast-setting geopolymers to form a reinforcement structure around the shield tunnel, the problems of high cost, long cycle and large environmental impact of traditional shield tunnel end soil reinforcement methods are solved, and a fast, economical and safe reinforcement effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHENGZHOU NO 1 CONSTR ENG GRP
- Filing Date
- 2023-09-11
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional methods for reinforcing the soil at the tunnel boring machine (TBM) end are costly, have long construction periods, have a significant environmental impact, are easily limited by geological conditions and the construction environment, and are prone to sand flow and sand inrush accidents.
The reinforcement is achieved by combining non-aqueous reactive polyurethane polymers and fast-setting geopolymers. By forming a grouting zone around the shield tunnel and sealing the grouting area, the rapid setting of the polymers and the good bonding properties of the geopolymers are utilized to form a reinforcement structure with high strength and good water resistance.
It reduced construction costs, shortened the construction period, reduced environmental impact, improved construction efficiency, reduced the risk of quicksand and sand inrush, and enhanced soil stability and project safety.
Smart Images
Figure CN117345280B_ABST