Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Strong-permeability stratum grouting material in flowing water environment and preparation method thereof

A grouting material and water environment technology, applied in the field of material science, can solve the problems of insufficient grouting effect, rapid dilution of grout, and poor grouting effect, and achieve strong water corrosion resistance, high interface bonding strength, Effects with controllable spread

Inactive Publication Date: 2020-10-13
SHANDONG UNIV OF SCI & TECH
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The price of granular grout is low and the pollution is small, but the grouting effect is not good
Cement-sodium silicate grout is widely used, but the grout is easily diluted or even lost in the environment of water or moving water, and the ideal grouting effect cannot be achieved.
Although the grouting effect of chemical grouting materials is good, the price is often high, and there are major safety problems, such as toxicity, corrosiveness, flammability and explosion, and environmental pollution.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Strong-permeability stratum grouting material in flowing water environment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for preparing a grouting material for a strongly permeable formation under a dynamic water environment, comprising the following steps.

[0031] 1) According to the water-cement ratio of 0.8 to 1, first add water to the mixing tank, and then add cement (strength grade P.042.5, Blaine specific surface area is 300 to 350m 2 / kg), and during the configuration process, the cement needs to be stirred continuously.

[0032] 2) According to the addition of potassium polyacrylate crystal particles per cubic meter of grouting slurry, add 1 g per cubic meter of gel material. Add 1 kg of sodium polyacrylate crystals per cubic meter of gel material.

[0033] 3) Mix the water glass with a Baume degree of 40 and the grouting slurry after adding fibers in step 2) at a volume ratio of 1:5, and inject it into the borehole with a double-liquid grouting pump.

[0034] After the current slurry in this example is injected into the borehole, compared with the simple injection of c...

Embodiment 2

[0036] A method for preparing a grouting material for a strongly permeable formation under a dynamic water environment, comprising the following steps.

[0037] 1) According to the water-cement ratio of 1 to 1, first add water to the mixing tank, and then add cement (strength grade P.042.5, Blaine's specific surface area is 300 to 350m 2 / kg), and during the configuration process, the cement needs to be stirred continuously.

[0038] 2) Add 0.8kg of potassium polyacrylate crystal particles per cubic meter of gel material per cubic meter of grouting slurry. Add 1.5 kg of sodium polyacrylate crystals per cubic meter of gel material.

[0039] 3) Mix the water glass with a Baume degree of 40 and the grouting slurry after adding fibers in step 2) according to the volume ratio of 1 to 4.5, and inject it into the borehole with a double-liquid grouting pump.

[0040] After the current slurry in this example is injected into the borehole, compared with the simple injection of cement-...

Embodiment 3

[0042] A method for preparing a grouting material for a strongly permeable formation under a dynamic water environment, comprising the following steps.

[0043] 1) According to the water-cement ratio of 1 to 1, first add water to the mixing tank, and then add cement (strength grade P.042.5, Blaine's specific surface area is 300 to 350m 2 / kg), and during the configuration process, the cement needs to be stirred continuously.

[0044] 2) According to the addition of potassium polyacrylate crystal particles per cubic meter of grouting slurry, add 0.6kg per cubic meter of gel material. Add 1.5 kg of sodium polyacrylate crystals per cubic meter of gel material.

[0045] 3) Mix the water glass with a Baume degree of 40 and the grouting slurry after adding fibers in step 2) at a volume ratio of 1:5, and inject it into the borehole with a double-liquid grouting pump.

[0046]After the current slurry in this example is injected into the borehole, compared with the simple injection o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a strong-permeability stratum grouting material in a flowing water environment and a preparation method thereof, and belongs to the field of preparation of flowing water plugging materials. The grouting material comprises a cementing material, an expansion material and a quick-setting material, and the expansion material comprises potassium polyacrylate crystal particles and sodium polyacrylate crystals. The method comprises the following steps of: (1) preparing a cementing material into a groutable fluid; and (2) adding an expansion material into the slurry in the step (1), uniformly stirring, adding a setting accelerator within 30 minutes, and carrying out grouting. The grouting material provided by the invention has the characteristics of adjustable setting time, water swelling of slurry particles, strong groutability, good water gushing leaking stoppage effects, controllable slurry diffusion range, low cost, no toxicity and the like, and is an excellent-performance strong-permeability stratum grouting reinforcement and seepage prevention material in a flowing water environment.

Description

technical field [0001] The invention relates to a grouting material, in particular to a grouting material used in strong permeable formations under dynamic water environment and a preparation method thereof, belonging to the field of material science and technology. Background technique [0002] Grouting construction is a concealed project. In addition, the strong permeable formation has the characteristics of various gradations, complex and changeable internal structure, large pores, difficult hole formation, easy hole collapse, and tortuous seepage channels, so that the grouting reinforcement of the strong permeable formation It is often more complicated and difficult than other formations, mainly manifested in unclear diffusion range of grout, leakage of grout, large amount of grouting, and large randomness of grouting amount; in dynamic water environment, the grout is rapidly diluted and even lost with the water flow , formation grouting plugging difficulties and so on. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B111/70
CPCC04B28/26C04B2111/70C04B2201/50C04B16/04C04B14/043C04B22/143C04B14/28C04B18/142
Inventor 孔德森邓美旭巩越
Owner SHANDONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com