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Grouting pipe

A grouting pipe and slurry pipe technology, applied in construction, sheet pile wall, infrastructure engineering and other directions, can solve the problems of harsh working environment of grouting pipe, affecting grouting effect, deformation of grouting pipe, etc. Weight, ensure smooth progress, and save the effect of manufacturing costs

Active Publication Date: 2013-11-20
佛山市南海业宝建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In addition, due to the harsh working environment of the grouting pipe, it is easy to collide with surrounding objects during transportation and work, causing the grouting pipe to deform, and in severe cases, it will be damaged, affecting its grouting effect

Method used

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  • Grouting pipe

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Embodiment Construction

[0022] The present invention will be further described below according to the drawings and specific embodiments.

[0023] see figure 1 , the grouting pipe of the present invention includes a temporary conduit 1 for connecting with a grouting machine, a grouting conduit 2 for transporting grout, and a grouting conduit 3 for discharging grout, and the grouting conduit 2 includes a connection head 22 and a thin-walled pipe body 21 that are tightly connected, at least one end of the temporary conduit 1, at least one end of the slurry discharge pipe 3, and the connection head 22 of the grouting conduit 2 are provided with external threads, which are provided with the above-mentioned The sleeve 4 with the external thread matched with the internal thread is flexibly connected, and the wall thickness of the thin-walled pipe body 21 is smaller than the wall thickness of the temporary conduit 1, the connector 22 and the slurry discharge pipe 3. In this embodiment, the connector 22 1. T...

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Abstract

The invention relates to a grouting pipe applied to a bored pile post-grouting construction method. The grouting pipe comprises a temporary guide pipe connected with a grouting machine, a grouting guide pipe for delivering cement paste and a discharge pipe for discharging the cement paste, wherein the temporary guide pipe, the grouting guide pipe and the discharge pipe are sequentially movably connected through a sleeve; the grouting guide pipe comprises a thin-wall pipe body and connectors fastened and connected to the two ends of the thin-wall pipe body; and the wall thickness of the thin-wall pipe body is smaller than those of the temporary guide pipe and the discharge pipe. The material consumption and the weight of the grouting pipe are effectively reduced under the condition of satisfying the design construction and the safety standard, so that the manufacturing cost is saved, and the additional loads of transportation and construction are lightened; and a protective ring for protecting the grouting pipe body is arranged on the periphery of the end part of the grouting pipe, so that the grouting pipe is effectively prevented from being damaged by collision or extrusion and grouting can be smoothly performed.

Description

technical field [0001] The invention relates to a foundation engineering construction accessory, in particular to a grouting pipe used in the post-grouting construction method of bored piles. Background technique [0002] In recent years, post-grouting technology for bored piles has been widely used because it can effectively improve the vertical bearing capacity of piles, and has gradually developed into a conventional technical means. Post-grouting technology for bored piles refers to the pre-embedded grout pipe in the bearing layer at the pile end after the pile hole is formed, and the grouting pipeline is led to the ground, and then the concrete pouring of the bored pile is carried out, and After the initial setting of the concrete, before the final setting, the grouting equipment (grouting pump) is used to press the solidified liquid (generally cement slurry) into the bearing layer of the pile end through the grouting pipeline, and the seepage and solidification of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/62E02D5/34
Inventor 许瑞琴
Owner 佛山市南海业宝建材有限公司
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