Shield solidified soil, preparation method and application
By mixing the shield waste soil with a variety of materials and performing gelation reactions, high-performance shield solidified soil is formed, and the problems of waste soil resources and environmental pollution of shield waste soil are solved, and efficient reuse of resources and environmental sustainability are achieved.
CN119683954AInactive Publication Date: 2025-03-25CHINA RAILWAY SHISIJU GROUP CORP +2
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Patent Information
- Application Number
- CN202510207877.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-03-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Technical Problem
The existing technology is difficult to effectively treat and reuse the shield waste soil generated in subway construction, resulting in waste of resources and environmental pollution.
Method used
By mixing the shield waste soil with slag powder, lithium slag, quicklime, water glass, basalt fiber, glass fiber and polybutylate, and gelling reaction is carried out under the excitation of quicklime and water glass, shield solidified soil with high compressive strength and permeability resistance is formed.
Benefits of technology
It realizes efficient reuse of shield waste soil, improves the durability, crack resistance and anti-slip properties of the solidified soil, and reduces resource waste and environmental pollution.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides shield solidified soil, a preparation method and application, and belongs to the technical field of material recycling. According to the shield solidified soil, under the condition that the quick lime and the water glass serve as alkali activators, the slag powder and the lithium slag are excited to be subjected to gelation reaction, the compressive strength, the anti-permeability and other performance of the shield solidified soil are enhanced, a stable compound is formed, and the compressive strength, the anti-permeability and other performance of the shield solidified soil are enhanced. Meanwhile, the basalt fibers, the glass fibers and the polycrotonate can be cured into a whole, so that the compression resistance of the shield solidified soil is improved, and cracking is prevented. The glass fiber and the polycrotonate both have the characteristic of high heat resistance, so that the thermal deformation temperature of the shield solidified soil can be increased, and the shield solidified soil is prevented from deforming when being applied to a relatively high temperature. The shield solidified soil adopts the shield waste soil, the slag powder, the lithium slag and other industrial waste materials, so that waste is turned into wealth, and the phenomena of excessive excavation of cultivated land, mountain cutting, quarrying and the like are avoided.
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