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Expansive-type high-polymer cement paste, grouting reinforcement device and grouting reinforcement method

A technology of grouting reinforcement and polymer, which is applied in the direction of drilling composition, chemical instruments and methods, soil protection, etc., and can solve uneven compaction of dynamic compaction, differential settlement of buildings, local lack of compactness, etc. problems, to achieve the effect of easy guarantee of reinforcement quality, improvement of foundation bearing capacity, and low construction difficulty

Active Publication Date: 2017-12-01
ZHONGYUAN ENGINEERING COLLEGE
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that when the dynamic compaction replacement method is used for the treatment of miscellaneous fill soil foundation, the dynamic compaction is not uniform, and the compactness requirements are partially not met, and differential settlement occurs in buildings. Expansive high polymer cement slurry for reinforcement of pile tip soil and pile side soil, grouting reinforcement device and grouting reinforcement method

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  • Expansive-type high-polymer cement paste, grouting reinforcement device and grouting reinforcement method
  • Expansive-type high-polymer cement paste, grouting reinforcement device and grouting reinforcement method
  • Expansive-type high-polymer cement paste, grouting reinforcement device and grouting reinforcement method

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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Such as Figure 1 to Figure 5 As shown, an expansive high polymer cement slurry is made of the following raw materials in parts by weight: 91-95 parts of Portland cement, 2-4 parts of silent breaking agent, and 3-5 parts of polypropylene fiber. When making, stir according to the ratio of water-cement ratio 1:8, and start pressure injection after fully stirring evenly. The initial stirring time is not less than 60 seconds, and it should be stirred slowly...

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Abstract

The invention provides expansive-type high-polymer cement paste, a grouting reinforcement device and a grouting reinforcement method, aiming to solve the technical problems that dynamic compaction is not uniform, partial compactness does not meet requirements and differential settlement of buildings occur when a dynamic compaction substitution method is used for miscellaneous fill foundation treatment. The expansive-type high-polymer cement paste comprises, by weight, 91-95 parts of Portland cement, 2-4 parts of soundless cracking agents and 3-5 parts of polypropylene fibers. The expansive-type high-polymer cement paste is injected into stratum evenly through a steel grouting pipe, original cracks are filled with grout in the mode of filling, permeating, swelling and compacting, originally-loose soil particles are rapidly solidified into a whole body, and a mini pile is formed in a drill hole, so that mechanical property of foundation soil is improved, and the effects of improving bearing capacity of the foundation soil and consolidating the foundation are achieved.

Description

technical field [0001] The invention relates to a cement slurry reinforcement, in particular to an expansive high polymer cement slurry, a grouting reinforcement device and a grouting reinforcement method suitable for construction engineering, road engineering and the like. Background technique [0002] With the development of the city, the demand for construction land is also increasing, and some foundations with poor geological conditions are gradually being paid attention to, especially mixed fill foundations. Due to the different components of the miscellaneous fill, the size of the particles, the size of the pores between the particles, and the high compressibility, the dynamic compaction replacement method is often used for foundation treatment. However, when the foundation treatment area is large and the treatment depth is greatly different, it is often There will be uneven tamping, and local compaction requirements will not be met, resulting in differential settlemen...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00E02D15/04E02D3/12C09K8/467C04B111/70C04B111/34
CPCC04B28/00C04B2111/343C04B2111/70C09K8/467C09K2208/08E02D3/12E02D15/04C04B16/0633
Inventor 杨小卫边亚东胡江春马豪豪刘明林任伟
Owner ZHONGYUAN ENGINEERING COLLEGE
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