Mud-loving grouting reinforcement material and grouting process

A technology of grouting reinforcement and material composition, which is applied in the direction of wellbore lining, tunnel lining, underground chamber, etc., can solve the problems that expansive rock formations are difficult to play the role of grouting reinforcement, the diffusion radius is small, and pollute the environment, so as to increase the resistance The ability of external shear damage, large penetration radius, and the effect of reducing production cost

Active Publication Date: 2021-10-26
TAIAN TAISHUO STRATUM CONTROL SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the practice of grouting reinforcement in high-shale soft rock roadways has proved that cement grout has a small diffusion radius, poor cementation, and high water separation rate in fissures in muddy s

Method used

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  • Mud-loving grouting reinforcement material and grouting process
  • Mud-loving grouting reinforcement material and grouting process
  • Mud-loving grouting reinforcement material and grouting process

Examples

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specific Embodiment approach

[0042] A mud-friendly grouting reinforcement material, the composition of the grouting reinforcement material is: 45%-55% of calcium oxide, 5%-15% of sulfur trioxide, 15%-25% of silicon dioxide, Aluminum oxide 5%-15%, calcium silicate 1%-5%, calcium sulfate 3%-10%. Preferably, in terms of weight percentage, the composition of the grouting reinforcement material includes: calcium oxide 51-53%, sulfur trioxide 9-11%, silicon dioxide 19-21%, aluminum oxide 8-10%, silicic acid Calcium 2-4%, calcium sulfate 4-6%. Preferably, the proportion of components other than the above-mentioned material components does not exceed 2%.

[0043] Through the combination of the above components, it is ensured that the bonding strength of the mud-friendly grouting reinforcement material with mudstone at the same concentration is 1.5 to 2 times that of P42. The average compressive strength is greater than 10.0MPa, the average 7-day flexural strength is greater than 6.0MPa, and the average compress...

example 1

[0065] A mud-friendly grouting reinforcement material, the composition of the grouting reinforcement material is: 52% calcium oxide, 10% sulfur trioxide, 20% silicon dioxide, 9% aluminum trioxide, calcium silicate 3%, Calcium Sulfate 5%, and the rest of the ingredients add up to 1%.

example 2

[0067] A mud-friendly grouting reinforcement material, the composition of the grouting reinforcement material is: calcium oxide 51%, sulfur trioxide 11%, silicon dioxide 19%, aluminum oxide 10%, calcium silicate 2%, Calcium Sulfate 6%, and the rest of the ingredients add up to 1%.

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Abstract

The invention discloses a mud-loving grouting reinforcement material and a grouting process. The mud-loving grouting reinforcement materialcomprises the following components in percentage by weight: 45%-55% of calcium oxide, 5%-15% of sulfur trioxide, 15%-25% of silicon dioxide, 5%-15% of aluminum trioxide, 1%-5% of calcium silicate and 3%-10% of calcium sulfate. The mud-loving grouting reinforcement material is good in cohesiveness, high in strength and free of pollution, compared with a traditional inorganic grouting material, the water drainage amount is greatly reduced, in cooperation with the grouting technology, the cohesive force, the internal friction angle and the elastic modulus of rock mass are improved in mud soft rock roadway grouting reinforcement, the capacity of an anchoring body for resisting external shear damage is improved, chemical materials which are high in cost, serious in pollution and poor in later-stage reinforcement effect can be completely replaced, and the problem of grouting reinforcement of high argillaceous rocks, which puzzles many coal mines, is solved.

Description

technical field [0001] The invention relates to the technical field of mine anchor grouting reinforcement, in particular to a mud-friendly grouting reinforcement material and a grouting process. Background technique [0002] When excavating roadways in high-shale soft rock or repairing large-deformed roadways, in order to ensure the long-term stability of the roadway support, the "anchor-grouting reinforcement technology" is often used for roadway maintenance, that is, to select the appropriate time for grouting after the anchor net cable support reinforcement. [0003] When using this technology, cement-based materials are often used as grouting materials in the past. However, the practice of grouting reinforcement in high-shale soft rock roadways has proved that cement grout has a small diffusion radius, poor cementation, and high water separation rate in fissures in muddy soft rock. It will bring great negative impact; for the use of chemical materials for grouting rein...

Claims

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Application Information

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IPC IPC(8): C04B28/18E21D11/10E21D20/00C04B111/70
CPCC04B28/188E21D11/10E21D20/00C04B2111/70C04B2201/50C04B22/064C04B22/143C04B14/06C04B14/303Y02W30/91
Inventor 王阁王德雪贺帅袁增卫赵斌陶健康
Owner TAIAN TAISHUO STRATUM CONTROL SCI & TECH CO LTD
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