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Double liquid grouting material for pore sandstone, and grouting technology thereof

A dual-liquid grouting, sandstone technology, applied in the field of material science, can solve the problems of blockage of grouting pipeline, limited range of slurry diffusion, short curing time, etc., and achieve the effect of avoiding blockage

Active Publication Date: 2014-11-19
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the short curing time of the grouting material, the diffusion range of the grout is limited, which may not reach the designed grouting reinforcement range, and may cause blockage of the grouting pipeline

Method used

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  • Double liquid grouting material for pore sandstone, and grouting technology thereof
  • Double liquid grouting material for pore sandstone, and grouting technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The two-component grouting material suitable for porous sandstone used in this embodiment is composed of curing agent A and gelling agent B. The weight ratio of each component in curing agent A is: ferric chloride: aluminum chloride: water = 15 : 5:80; the weight ratio of the components in the gel B is: water glass: polyethylene glycol: sodium dodecylbenzene sulfonate = 97.5: 2: 0.5. The weight ratio of curing agent A and gelling agent B is 1:1.

[0035] The grouting drilling arrangement of this embodiment is as follows figure 1 As shown, it includes curing agent A grouting hole 1 and gelling agent B grouting hole 2. The grouting process steps of this embodiment are as follows:

[0036] (1): Weigh ferric chloride and aluminum chloride according to the weight ratio of curing agent A, and stir them evenly; mix the solid raw material mixture in the stirred curing agent A with water evenly to make a curing agent A solution ;

[0037] (2): Weigh water glass, polyethylene glycol ...

Embodiment 2

[0043] The two-component grouting material suitable for porous sandstone used in this embodiment is composed of curing agent A and gelling agent B. The weight ratio of each component in curing agent A is: ferric chloride: aluminum chloride: water = 10.8 : 4.2:85; the weight ratio of each component in gel B is: water glass: polyethylene glycol: sodium dodecylbenzene sulfonate=97:2.5:0.5. The ratio of curing agent A and gelling agent B is 1:1.2.

[0044] The grouting drilling arrangement of this embodiment is as follows figure 1 As shown, it includes curing agent A grouting hole 1 and gelling agent B grouting hole 2. The grouting process steps of this embodiment are as follows:

[0045] (1): Weigh ferric chloride and aluminum chloride according to the weight ratio of curing agent A, and stir them evenly; mix the solid raw material mixture in the stirred curing agent A with water evenly to make a curing agent A solution ;

[0046] (2): Weigh water glass, polyethylene glycol and sodiu...

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Abstract

The invention relates to double liquid grouting material for pore sandstone and a grouting technology thereof. The grouting material comprises curing agent A and gels B, wherein the weight ratio of the curing agent A to the gels B is 1: (0.8 to 1.5). The curing agent A comprises the following components in parts by weight: 10 to 20 parts of ferric chloride, 4 to 5.5 parts of aluminum chloride, and 70 to 85 parts of water; the gels B comprises the following components in parts by weight: 95 to 98 parts of water glass, 1 to 3 parts of polyethylene glycol, and 0.3 to 0.7 part of sodium dodecyl benzene sulfonate. The curing agent A and the gels B are injected into pore sandstone stratum through respective grouting holes, a double liquid mixer is not required, and the problem that traditional double liquid grouting has high possibility of causing the blockage of a grouting pipeline is avoided. The material has the advantages of being good in stability, high in water plugging capacity of induration and low in cost.

Description

Technical field [0001] The invention relates to a two-liquid grouting material suitable for pore sandstone and a grouting process thereof, and belongs to the technical field of materials science. Background technique [0002] The geological conditions faced by underground engineering construction in my country are becoming more and more complex, such as Permian-Shihezi Formation, Shanxi Formation Quartz Cemented Sandstone and Jurassic-Zhiluo Formation argillaceous cemented sandstone with large porosity, small pores, and strong water conductivity The porous sandstone is widely distributed and is the main aquifer in underground engineering construction. When tunnels, mine roadways, inclined shafts and other underground projects pass through high-porosity water-rich sandstone formations, water inrush disasters often occur, which have the characteristics of large water inflow area, large water inflow, and difficult to block. [0003] Grouting as an effective means of blocking water inr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B22/12
Inventor 张庆松张连震张霄李志鹏王德明郑东柱赵鹏
Owner SHANDONG UNIV