CN215629908U

CN215629908U - Cement mixing stake construction equipment

Info

Publication number: CN215629908U
Application number: CN202122099155.3U
Authority: CN
Inventors: 沈缤; 李宏伟; 郭静; 韩宾; 孙忠义; 田亮
Original assignee: Shandong Dingxin Geotechnical Technology Co ltd
Current assignee: Shandong Dingxin Geotechnical Technology Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-01-25
Anticipated expiration: 2031-09-02

Abstract

In order to solve the problems of low construction efficiency, unreliable stirring quality, much dust emission and the like of a cement stirring pile, the utility model provides a cement stirring pile construction device which comprises a drill rod, a drill bit and a stirring rod, wherein a cement slurry conveying pipe and a concrete slurry conveying pipe are arranged in the drill rod, the drill bit is fixedly connected below the drill rod, the stirring rod comprises a first stirring rod and a second stirring rod which are distributed from top to bottom and fixed on the drill rod, a plurality of nozzles are arranged on the outer side surface of the drill rod between the first stirring rod and the second stirring rod and connected with the cement slurry conveying pipe, a stirring tool bit is arranged on the second stirring rod, and a grouting hole connected with the concrete slurry conveying pipe is further arranged on the drill rod between the first stirring rod and the second stirring rod.

Description

Cement mixing stake construction equipment

Technical Field

The utility model relates to the technical field of building construction devices, in particular to a cement mixing pile construction device.

Background

The cement mixing pile is mainly used for reinforcing the soft soil foundation by the hydrolysis and hydration reaction of cement and the chemical reaction of cement hydrate and clay, so that a pile body with relatively high strength is formed, and the pile body and surrounding soft soil form a composite foundation together, so that the effects of improving the bearing capacity of the foundation, enhancing the stability of the roadbed and reducing the settlement of the roadbed are achieved.

The existing cement mixing pile is generally provided with one or two slurry spraying nozzles between an upper mixing blade and a lower mixing blade, the slurry pressure is less than 1MPa, the flow is 50L/min, the pile is formed by generally adopting a two-spraying four-mixing mode, the lifting speed of a drill rod is generally not more than 0.6m/min, the construction speed is too slow, the mixing quality is unreliable, the working efficiency is low, and the dust is much, so that the environment-friendly effect cannot be achieved.

Disclosure of Invention

In order to solve the problems of low construction efficiency, unreliable stirring quality, more dust emission and the like of a cement stirring pile, the utility model provides a cement stirring pile construction device, which adopts the following technical scheme:

the utility model provides a cement mixing pile construction equipment, its characterized in that, includes drilling rod, drill bit, puddler, be provided with defeated thick liquid pipe of cement and defeated thick liquid pipe of concrete in the drilling rod, drill bit fixed connection is in the drilling rod below, and the puddler includes that top-down distributes and fixes first puddler and the second puddler on the drilling rod, is provided with a plurality of nozzles on being located the drilling rod lateral surface between first puddler and the second puddler, and a plurality of nozzles link to each other with the defeated thick liquid pipe of cement, are provided with the stirring tool bit on the second puddler, still are provided with the grout hole that links to each other with the defeated thick liquid pipe of concrete on being located the drilling rod between first puddler and the second puddler.

Preferably, the nozzles are arranged in four groups and are uniformly distributed along the circumferential direction of the drill rod.

Preferably, the first stirring rod and the drill rod are distributed in an inclined mode at a certain included angle.

Preferably, the cement slurry conveying pipe is connected with a high-pressure cement pump.

Preferably, the first stirring rod is also provided with a stirring tool bit.

The utility model has the beneficial effects that:

1. the single or double grout outlets between the upper and lower stirring rods of the traditional cement stirring pile are changed into four nozzles which are symmetrically arranged in a staggered manner, the number of the nozzles is increased, the grout mixing flow is improved by adopting a high-pressure mud pump, the lifting speed of the drilling rods is improved, and the construction efficiency is effectively improved;

2. high-pressure mud pump sprays high-pressure grout through a plurality of nozzles to the soil layer, cuts the soil layer, and puddler and stirring tool bit combined action stir earth in the drilling simultaneously, have effectively improved the stirring stake quality.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

The device comprises a drill rod 1, a drill bit 2, a nozzle 3, a first stirring rod 4, a second stirring rod 5 and a stirring tool bit 6.

Detailed Description

An exemplary embodiment of the present disclosure will be described in more detail below with reference to fig. 1. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The cement mixing pile construction device shown in figure 1 mainly comprises a drill rod 1 and a drill bit fixedly connected below the drill rod 1, a cement soil slurry conveying pipe is arranged in the drill rod, the upper end of the cement soil slurry conveying pipe is connected with a high-pressure slurry pump, the upper part and the lower part of the drill rod 1 are respectively and fixedly connected with a first stirring rod 4 and a second stirring rod 5, the lower part of the drill rod 1 is also provided with four groups of nozzles 3, the four groups of nozzles 3 are uniformly distributed along the outer side surface of the drill rod 1, and four groups of nozzles 3 are positioned between the first stirring rod 4 and the second stirring rod 5, the four groups of nozzles 3 are communicated with a cement soil slurry conveying pipe inside the drill rod 1, in addition, the second stirring rod 5 is fixedly connected with a stirring tool bit 6 along the length direction, the drill rod 1 is also provided with a pouring hole 7, the pouring hole 7 is positioned between the first stirring rod 4 and the second stirring rod 5, and the pouring hole 7 is connected with a concrete slurry conveying pipe in the drill rod 1.

In this embodiment, four groups of nozzles 3 are evenly distributed along the circumference of the drill rod 1, and are symmetrical in pairs, the nozzles 3 are connected with a high-pressure slurry pump through a cement soil slurry conveying pipe in the drill rod 1, the high-pressure slurry pump adopts a mode of increasing the number of nozzles and adopting the high-pressure slurry pump, the lifting speed of the drill rod 1 is effectively increased, so that the construction efficiency is improved, and the high-pressure slurry pump sprays and cuts a clay layer through the nozzles 3 at higher pressure and flow, and together with a stirring tool bit 6 arranged on the stirring rod, the stirring effect is further improved, and the pile forming quality of the cement soil stirring pile is further improved.

The working principle of the device is as follows: drilling rod 1 and puddler are rotatory in the limit sinks to the soil layer at actuating mechanism drive, and simultaneously, the high pressure slush pump sprays cement thick liquid to the soil layer through four groups of nozzles 3 to play the cutting, mix the effect to the clay layer, simultaneously, under the effect of first puddler 4 and second puddler 5, make the cement thick liquid mix the clay in evenly, after drill bit 2 reachd the design degree of depth, the high pressure slush pump stop work, then drilling rod 1 promotes the limit rotation, drives first puddler 4 and second puddler 5 and stirs, until more than the design pile top elevation 0.5 m.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications can be made without departing from the principles of the utility model and these modifications are to be considered within the scope of the utility model.

Claims

1. The utility model provides a cement mixing pile construction equipment, its characterized in that, includes drilling rod, drill bit, puddler, be provided with defeated thick liquid pipe of cement and defeated thick liquid pipe of concrete in the drilling rod, drill bit fixed connection is in the drilling rod below, and the puddler includes that top-down distributes and fixes first puddler and the second puddler on the drilling rod, is provided with a plurality of nozzles on being located the drilling rod lateral surface between first puddler and the second puddler, and a plurality of nozzles link to each other with the defeated thick liquid pipe of cement, are provided with the stirring tool bit on the second puddler, still are provided with the grout hole that links to each other with the defeated thick liquid pipe of concrete on being located the drilling rod between first puddler and the second puddler.

2. The cement mixing pile construction device as claimed in claim 1, wherein the nozzles are provided in four groups, evenly distributed in a circumferential direction of the drill pipe.

3. The cement mixing pile construction device as claimed in claim 1, wherein the first mixing rod is inclined with respect to the drill rod by an included angle.

4. The cement mixing pile construction device as recited in claim 1, wherein the cement mortar delivery pipe is connected to a high pressure cement pump.

5. The cement mixing pile driving device as claimed in claim 1, wherein a mixing bit is also provided on the first mixing rod.