Preparation process of dynamic water scouring resistant TBM (Tunnel Boring Machine) synchronous grouting material

By using a combination of modified bentonite, aminated silica fume and titanium dioxide-glass fiber composite in the grouting material, the problems of insufficient flow, low compressive strength and high shrinkage are solved, and better fluidity, compressive resistance and stability are achieved.

CN119750968AActive Publication Date: 2025-04-04QINGDAO DECHEN NEW MATERIALS TECH CO LTD
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Patent Information

Application Number
CN202411903081.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-04-04
Estimated Expiration
2044-12-23

AI Technical Summary

Technical Problem

The existing grouting materials have problems such as insufficient flow, low compressive strength and high shrinkage, which affect their application range.

Method used

Modified bentonite is used as the matrix material, and aminolated fume and titanium dioxide-glass fiber composite are added to prepare a synergistic grouting material for anti-moving water erosion TBM.

Benefits of technology

The flowability of grouting materials is significantly improved, while enhancing compressive strength and reducing shrinkage, expanding its application range.

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Abstract

The invention belongs to the technical field of building materials, and particularly relates to a preparation process of a dynamic water scouring resistant TBM (Tunnel Boring Machine) synchronous grouting material. The modified bentonite is used for preparing a base material, the aminated silica fume and the titanium dioxide-glass fiber composite material are added at the same time, the TBM synchronous grouting material resistant to flowing water scouring is prepared, through the synergistic effect of the multiple components, it is guaranteed that the grouting material has good fluidity, meanwhile, the compressive strength is improved, and the shrinkage rate is reduced.
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