Layered grouting device and application thereof

A technology of grouting device and grouting pipe, which is applied in the direction of protective devices, sheet pile walls, buildings, etc., can solve the problems of poor layered grouting effect, etc., and achieve the effect of improving sealing effect, strong flexibility, and increasing service life

Pending Publication Date: 2021-03-09
安徽省城建基础工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a layered grouting device to solve the technical problem of poor effect of layered grouting in the prior art

Method used

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  • Layered grouting device and application thereof
  • Layered grouting device and application thereof
  • Layered grouting device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] combine Figure 1-4 , this embodiment provides a layered grouting device, including a grouting pipe 1, similar to the traditional grouting pipe 1, in order to be able to grout at different heights, on the side wall of the grouting pipe 1 from top to bottom A plurality of grouting holes 2 are opened, and each grouting hole 2 is at the same position on the grouting pipe 1 as the position to be grouted. In order to avoid the grouting of the grouting pipe 1 at the same time, The defect that the grouting effect cannot be achieved in some positions due to the outflow of the holes 2 needs to meet the requirement that one grouting hole 2 can be grouted alone and the rest of the grouting holes 2 should not be grouted during grouting;

[0040]In order to meet the above-mentioned requirements in this embodiment, a grout supply pipe 3 with an outer diameter smaller than the inner diameter of the grout pipe 1 is firstly installed in the grout pipe 1, and the grout pipe 1 body is not...

Embodiment 2

[0049] combine Figure 5 , This embodiment provides a layered grouting device, the equipment structure is similar to that of Embodiment 1, the main difference is that the grout stopper 4 is improved. In this embodiment, the outer casing 6 is specifically composed of an upper cover 16 distributed coaxially, a plurality of middle supporting layers 17 and a lower cover 18, all of which are sleeved on the slurry supply pipe 3 and screwed to its outer wall, and the upper The cover 16 is specifically composed of a first transverse circular plate 19 and a first annular vertical enclosure 20 integrated with the first transverse circular plate 19 and arranged at the bottom of its outer edge. The middle support layer 17 is specifically composed of a cylindrical cavity 21 and the second annular vertical shroud 22 arranged on the outer edge of the top end and the outer edge of the bottom end of the cylindrical cavity 21, the lower cover 18 is specifically composed of a second transverse c...

Embodiment 3

[0054] combine Image 6 , in this embodiment, the equipment structure is the same as in Embodiment 2, the main difference is that, in order to effectively utilize the gap between the adjacent cylindrical elastic sealing cavity 25 to expand the exposed part, it is filled with oil in this embodiment to improve the sealing Therefore, it is necessary to expand the cylindrical elastic sealing cavity 25 at the bottom of each grout plug 4 to contact the inner wall of the grouting pipe 1 before supplying oil. Therefore, in this embodiment, each high-pressure pipe 26 also has A pressure valve 28 is fixedly installed, and the pressure valve 28 is bidirectional, and its opening only needs to meet the pressure requirement. In the pipe 26, under normal pressure, it is affected by its own stretchability, and the pressure relief hole is in a state of being squeezed and closed by itself. When the positive pressure or negative pressure in it reaches the opening pressure, the pressure relief ho...

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Abstract

The invention discloses a layered grouting device and application thereof, and relates to a grouting pipe. The layered grouting device comprises a grouting pipe body; a plurality of grout outlets areformed in the side wall of the grouting pipe body; a grout supply pipe is arranged in the grouting pipe body; the outer wall of the bottom end of the grout supply pipe is sleeved with two cylindricalgrout stop plugs fixedly connected with the grout supply pipe from top to bottom; a grout outlet space is formed between the two grout stop plugs; a grout supply hole is formed in a pipe body, locatedin the grout outlet space, of the grout supply pipe; each grout stop plug is composed of an outer shell and an inner elastic sealing cavity; a plurality of annular notches are evenly formed in the side wall of each outer shell from top to bottom; the outer walls of the inner elastic sealing cavities are attached to the inner walls of the outer shells; the two inner elastic sealing cavities are connected through a connecting pipe; and the inner elastic sealing cavity located on the upper portion is further connected with an outer pressure supply device through an air supply pipe. According tothe layered grouting device and the application thereof, the purpose of layered grouting can be effectively achieved, the grouting sequence can be flexibly set, and the defects of traditional layeredgrouting are overcome.

Description

technical field [0001] The invention relates to a grouting pipe, in particular to a device for layered grouting. Background technique [0002] Grouting pipe is a commonly used equipment in infrastructure construction. It opens grouting holes on the pipe and injects grout into the pipe from an external grouting device. However, the traditional grouting method does not have ideal grouting effect because the pipes are Straight through, so the grout will flow autonomously to the grouting holes with high porosity in the surrounding soil, while the grouting volume of other parts that need to be filled cannot meet the requirements, which directly affects the grouting effect and increases the grouting cost; [0003] However, in the prior art, the technical solution of partial layered grouting is regional or segmented grouting, which can only be grouted from bottom to top, which has poor flexibility, poor sealing effect, and overflow phenomenon. , is not conducive to saving grouting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D15/04E02D5/34E02D31/02
CPCE02D5/34E02D15/04E02D31/02
Inventor 吕成炜刘贵强王春张龙飞吕晓光高小平陈翀
Owner 安徽省城建基础工程有限公司
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