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Polymer gravel pile grouting method

A technology of high polymer and gravel piles, which is applied in the direction of sheet pile walls, buildings, and foundation structure engineering, etc., to achieve strong anti-vibration and anti-crack performance, plump pile shape, and improved anchoring force

Inactive Publication Date: 2013-08-07
HENAN POLYTECH INFRASTRUCTURE REHABILITATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, polymer grouting technology is mainly used in foundation reinforcement and road maintenance of industrial and civil buildings. There are no relevant reports on the grouting method of polymer gravel piles in China.

Method used

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  • Polymer gravel pile grouting method
  • Polymer gravel pile grouting method
  • Polymer gravel pile grouting method

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Embodiment Construction

[0036] Below in conjunction with accompanying drawing, the present invention will be further described.

[0037] A grouting method for polymer gravel piles, the specific implementation steps are as follows:

[0038] (1) Hole forming at the pile position: According to the design requirements, use the drilling tool 1 to construct the pile hole at the pile position, and the depth reaches the design depth, such asfigure 1 shown;

[0039] (2) Install the grouting pipe: install the grouting pipe 3 in the pile hole 2, the grouting pipe 3 is located in the center of the pile hole, and the outlet of the grouting pipe 3 goes deep into the bottom of the pile hole 2, such as figure 2 shown;

[0040] (3) Putting graded stone: According to different geological conditions, put graded stone 4 into the pile hole, such as image 3 shown;

[0041] (4) High polymer lifting grouting: place the high polymer lifting grouting control equipment 5 above the hole of the grouting pipe 3; ...

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Abstract

The invention relates to a polymer gravel pile grouting method for reinforcement of soft foundation and special soil foundation. The polymer gravel pile grouting method includes the following specific implementation steps: (1) pile position hole-forming; (2) grouting pipe installation; (3) graded stone distribution; (4) grouting improvement of polymer; and (5) pile forming. Through the steps of pile position hole-forming, graded stone distribution, grouting improvement of polymer and the like at a reinforced field, after injected two-component swelling polymer materials have chemical reaction, volume of the polymer materials is swelled rapidly and solidified together with graded stone, pile holes are filled by the polymer materials from bottom to top, and the polymer materials swell to be compacted with hole wall rock soil to be combined with the peripheral rock soil fully so as to form a polymer gravel pile. The polymer gravel pile grouting method can achieve rapid reinforcement of soft foundation and special soil foundation, is advanced, efficient, safe and practical for reinforcement of the soft foundation and the special soil foundation, has the advantages of being strong in adaptability, high in strength, rapid, high in tenacity, durable and the like, and has huge economic and social benefits and wide development and application prospects.

Description

technical field [0001] The invention belongs to the technical field of foundation treatment, and in particular relates to a grouting method for high polymer gravel piles reinforced by soft foundations and special foundations. Background technique [0002] Since the 1990s, along with the steady and healthy development of national economic construction, the construction of large-scale infrastructure facilities such as highways and high-speed railways in my country has entered a period of rapid development, and has achieved world-renowned achievements. Due to my country's vast territory and complex and changeable geological conditions, highways and high-speed railways pass through a large number of unfavorable geological zones such as soft soil and collapsible loess, and the engineering geological problems faced are very prominent. Due to the physical and mechanical characteristics of soft soil, such as high water content, high compressibility, low strength, and small permeabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/46
CPCE02D5/34
Inventor 王复明钟燕辉石明生张蓓李晓龙赵海洲董亮
Owner HENAN POLYTECH INFRASTRUCTURE REHABILITATION
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