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Casting head for compact casting

A technology for compacting grouting and grouting head, which is applied in the field of grouting nozzles and grouting heads for compaction and grouting, which can solve the problem of excessive waste of cement slurry usage, inability to control the direction of grouting, and inability to achieve regional injection. Slurry and other problems, to achieve the effect of saving slurry, controlling the problem of running slurry, and good grouting effect

Active Publication Date: 2011-04-06
ZHONGYIFENG CONSTR GRP
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the grouting head with the above-mentioned structure is used for construction, the grout is sprayed from the bottom of the drill pipe to the surroundings, that is, the grout is released in sheets, and the problem of grout running is serious, especially for sandy soil, silt and artificial fill foundations. In other words, the problem of grout running is particularly prominent, which greatly affects the effect of grouting, and at the same time, the amount of grout used is too wasteful
On the other hand, due to the surrounding injection, the direction of grouting cannot be controlled, and regional grouting cannot be realized

Method used

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  • Casting head for compact casting
  • Casting head for compact casting
  • Casting head for compact casting

Examples

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Embodiment 1

[0028] See attached Figure 3-5 As shown, a grouting head for compaction grouting includes a hollow drill rod 1 and a drill bit 2 arranged at one end of the drill rod, and one side of the drill rod 1 is provided with 7 injection holes 5, the The injection holes 5 are arranged at intervals from near to far relative to the drill bit, and are divided into 5 groups, each group includes 1 to 2 injection holes, and an annular groove 6 is provided on the outer wall of the drill pipe corresponding to each group of injection holes. The width of the groove is larger than the diameter of the injection hole, and the depth is 1 to 2 millimeters, and the outlet of each injection hole is located in the groove. The injection holes are located on one side of the drill pipe, so grouting can be performed in a limited area to form an anti-seepage curtain, which reduces the leakage of slurry, thereby effectively controlling the problem of slurry running; the upper and lower distances of each injec...

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Abstract

The invention discloses a casting head for compact casting, which comprises a hollow drilling rod and a drilling head arranged at one end of the drilling rod. One side of the drilling rod is provided with at least three injection holes; the injection holes are arrayed at intervals relative to the drilling head from near to far; annual grooves are arranged on the outer wall of the drilling rod corresponding to the position of various injection holes; the widths of the grooves are larger than the diameters of the injection holes; and outlets of the injection holes are positioned in the grooves.The casting head limits the casting in a certain range, prevents the mortar escape, not only saves the mortar, but also has excellent casting effect.

Description

technical field [0001] The invention relates to a grouting nozzle, in particular to a grouting head for compacting grouting, and belongs to the field of pile foundation engineering. Background technique [0002] With the continuous acceleration of the pace of urbanization in our country, the urban population is becoming more and more dense, the scale of engineering construction is expanding day by day, and the difficulty is constantly increasing. The quality of engineering has become an issue of increasing concern to the public. According to statistical surveys, among all kinds of engineering accidents in various countries in the world, the proportion of engineering accidents caused by foundation problems is the largest, which highlights the close relationship between foundations and buildings. In order to improve the strength of the foundation, it is necessary to carry out anti-seepage reinforcement treatment on the foundation. [0003] When performing anti-seepage and rei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/12E02D15/02
Inventor 程月红陈赟牛洁雯王国佐
Owner ZHONGYIFENG CONSTR GRP
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