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Resistance-reduction slurry for tube push bench in sandy soil and preparation method of resistance-reduction slurry

A pipe jacking machine and soil quality technology, applied in mechanical equipment, chemical instruments and methods, applications, etc., can solve the problems that the drag reduction mud performance cannot meet the application requirements, etc., to increase hydration performance, enhance water resistance, and improve slurry consistency Effect

Inactive Publication Date: 2018-09-14
中铁隧道集团二处有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the performance of the existing drag reducing mud cannot meet the application requirements under various working conditions. In order to solve the above problems, the present invention provides a kind of drag reducing mud for pipe jacking machines in sandy soil and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A drag-reducing mud for pipe jacking machines in sandy soil, made of the following raw materials in parts by weight: 100 kg of sodium bentonite, 0.6 kg of soda ash, 0.2 kg of carboxymethyl cellulose, 0.2 kg of potassium humate, and 0.1 kg of graphite powder kg, vegetable glue 10kg, water 280kg.

[0025] As the above-mentioned preparation method of drag-reducing mud for pipe jacking machines in sandy soil, the specific steps are as follows: water is added in the pulping device, and soda ash, carboxymethyl cellulose, potassium humate, graphite powder and Vegetable gum is added to the pulping device, and sodium bentonite is added at the end. After stirring evenly, it is put into the slurry storage tank. The propeller is installed in the slurry storage tank, which can continuously stir the drag reducing mud and prevent the drag reducing mud from settling.

Embodiment 2

[0027] A drag-reducing mud for pipe jacking machines in sandy soil, made of the following raw materials in parts by weight: 100 kg of sodium bentonite, 0.65 kg of soda ash, 0.22 kg of carboxymethyl cellulose, 0.22 kg of potassium humate, and 0.11 kg of graphite powder kg, vegetable glue 11kg, water 285kg.

[0028] As the above-mentioned preparation method of drag-reducing mud for pipe jacking machines in sandy soil, the specific steps are as follows: water is added in the pulping device, and soda ash, carboxymethyl cellulose, potassium humate, graphite powder and Vegetable gum is added to the pulping device, and sodium bentonite is added at the end. After stirring evenly, it is put into the slurry storage tank. The propeller is installed in the slurry storage tank, which can continuously stir the drag reducing mud and prevent the drag reducing mud from settling.

Embodiment 3

[0030] A drag-reducing mud for pipe jacking machines in sandy soil, made of the following raw materials in parts by weight: 100 kg of sodium bentonite, 0.7 kg of soda ash, 0.25 kg of carboxymethyl cellulose, 0.24 kg of potassium humate, and 0.12 kg of graphite powder kg, vegetable glue 12kg, water 290kg.

[0031] As the above-mentioned preparation method of drag-reducing mud for pipe jacking machines in sandy soil, the specific steps are as follows: water is added in the pulping device, and soda ash, carboxymethyl cellulose, potassium humate, graphite powder and Vegetable gum is added to the pulping device, and sodium bentonite is added at the end. After stirring evenly, it is put into the slurry storage tank. The propeller is installed in the slurry storage tank, which can continuously stir the drag reducing mud and prevent the drag reducing mud from settling.

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Abstract

The invention discloses resistance-reduction slurry for a tube push bench in sandy soil and a preparation method of the resistance-reduction slurry. The resistance-reduction slurry is prepared by, byweight, 100 parts of sodium bentonite, 0.6-0.9 part of sodium carbonate, 0.2-0.35 part of carboxymethyl cellulose, 0.2-0.3 part of potassium humate, 0.1-0.15 part of graphite powder, 10-15 parts of vegetable gelatin and 280-310 parts of water. The resistance-reduction slurry and the preparation method thereof have the advantages that solid content in the resistance-reduction slurry is lowered by mixing the sodium bentonite and the vegetable gelatin, the slurry has a lot of fine-particle clay and is good in hydration effect and low in water loss, and slurry cake formed by the slurry is compactand thin; the lubricating performance of the resistance-reduction slurry is increased by the graphite powder, and the potassium humate has a good diluting effect on the resistance-reduction slurry andcan effectively lower the thickness of the resistance-reduction slurry while the viscosity of the slurry is changed slightly.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a drag-reducing mud for pipe jacking machines in sandy soil and a preparation method thereof. Background technique [0002] Pipe jacking construction technology is a form of pipeline construction in trenchless construction technology in recent years. Compared with slotting and open cut construction, it will not cause traffic impact on the construction site and surrounding areas, and has high construction efficiency and low pollution. During the pipe jacking construction, because the surroundings of the pipe are rubbed by the soil, frictional resistance is generated, which in turn affects the progress of the pipe. Therefore, drag reduction measures must be taken to overcome the huge jacking force on the pipe during construction. The huge thrust required for large-diameter and long-distance pipe jacking not only puts forward higher requirements on the comp...

Claims

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Application Information

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IPC IPC(8): C09K8/20C09K17/40F16L1/028C09K103/00
CPCC09K8/206C09K17/40C09K2103/00F16L1/028
Inventor 郑丽军李永蔷冉敬鹏曹伟明崔现慧王晋波赵李勇朱永帅王宏星王志营杨红军杨俊李克克姚树春吕东阳郭少波唐如玉赵国鸣贠文娟
Owner 中铁隧道集团二处有限公司
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