CN201424652Y

CN201424652Y - Jet grouting pile-forming device for special pile body

Info

Publication number: CN201424652Y
Application number: CN2009200765493U
Authority: CN
Inventors: 王嘉林; 王吉望
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-18
Filing date: 2009-06-18
Publication date: 2010-03-17
Anticipated expiration: 2019-06-18

Abstract

The utility model discloses a jet grouting pile-forming device for a special pile body, comprising a jet pipe, a rotary head fixed on the upper end of the jet pipe, and a conical spray nozzle connected with the lower end of the jet pipe, wherein the circumferential wall of the spray nozzle is provided with a plurality of jet orifices, and the jet orifices are arranged on the different level surfaces of the circumferential wall of the spray nozzle, and also can be vertical to the circumferential wall or form an right angle with the circumferential wall of the spray nozzle. The jet grouting pile-forming device for a special pile body combines a directional jet grouting method, a rotary jet grouting method or a swing jet grouting method on the same pile layout to form a special pile body witha single wing or a plurality of polydirectional wings, so that a water barrier or a leaking stoppage body formed by connecting a plurality of special pile bodies is free from forming gaps, thereby, the safety of the underground water barrier or the leaking stoppage body is greatly improved, at the same time, the project investment is greatly saved and the project period is shortened.

Description

A kind of pile device of injection slip casting of special-shaped pile body

Technical field

The utility model relates to a kind of a kind of equipment of building lot construction, particularly a kind of pile device of injection slip casting of special-shaped pile body.

Background technology

Utilize engineering driller to hole to the degree of depth of Design Treatment on the engineering, use high-pressure pump, by being installed in the special nozzle at the bottom of drilling rod (spray boom) rod end places the hole, the curing cement of soil body high-pressure injection towards periphery slurries, drilling rod (spray boom) promotes while rotating with certain speed simultaneously, and high-pressure spray destroys the soil structures in the certain limit, and pressure mixes with cement grout, just in the soil body, form after solidifying and have the pile body of certain performance and shape, thereby make ground reach reinforcing.The shape of pile body is relevant with the moving direction of injection stream.Generally be divided into the churning method, spray method and pendulum spray method surely.The pile body that the churning method forms is cylindric, is mainly used in consolidated subsoil, improves the shear strength of ground, improves the deformation performance of foundation soil, makes it under load action, unlikely destruction or produce excessive distortion.The pile body of deciding the formation of spray method is tabular or the wall shape, and pendulum spray method is the bigger fan-shaped pile body of thickness.Surely spray method and pendulum spray method is generally used for foundation anti-seepage, improve engineerings such as the hydraulics of foundation soil and stability of slope.

In the underground structrue engineering of coastal area, must prevent drift sand,, even cause the Important Project accident, need to form underground waterwall for this reason or underground structure partial is carried out leak stopping because the generation of drift sand is huge to the influence of construction work.The domestic and international at present main churning method that adopts is linked to be waterwall or leakage stop by the cylindrical pile body after repeatedly boring is driven piles.But because the complexity of underground construction and geological conditions, the churning method is difficult to control the verticality of pile body, cause at the bottom of the hole of pile body off-design, cause waterwall 6 that the slit (see figure 1) is arranged inevitably, even still can not eliminate the slit through repeatedly repairing piling, make dash or leak stopping failure, thereby cause engineering quantity to be multiplied, duration while is long, even can't accept economically.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of pile device of injection slip casting of special-shaped pile body is provided, it forms the special-shaped pile body that have single wing or have multidirectional a plurality of wings in conjunction with spraying method, churning method or pendulum spray method surely through the one or many injection in same stake position, waterwall or leakage stop that a plurality of special-shaped pile bodies are linked to be have been eliminated the slit, thereby have improved the degree of safety of underground waterwall and leakage stop greatly.

The technical scheme that realizes above-mentioned purpose is: a kind of pile device of injection slip casting of special-shaped pile body, comprise playpipe, be fixed on the swiveling head of playpipe upper end and be connected the Conic nozzle of playpipe lower end, offer one or several jets on the perisporium of described shower nozzle, these jets are located on the different level of perisporium of shower nozzle, and can vertical setting with the perisporium of shower nozzle or with the angled setting of the perisporium of shower nozzle.

The pile device of the injection slip casting of above-mentioned a kind of special-shaped pile body, wherein, the inside of described playpipe and swiveling head has 1～4 track media passage respectively.

The technical scheme of the pile device of the injection slip casting of a kind of special-shaped pile body of the present utility model adopts and offer several spouts on shower nozzle, and these jets are located on the different level of shower nozzle perisporium, and can vertical setting with the perisporium of shower nozzle or angled setting.This pile device forms the special-shaped pile body that have single wing or have multidirectional a plurality of wings in conjunction with spraying method, churning method or pendulum spray method surely through the one or many injection in same stake position, the length of these many wings can be identical or inequality, waterwall or leakage stop that a plurality of special-shaped pile bodies are linked to be have been eliminated the slit, thereby improved the degree of safety of underground waterwall and leakage stop greatly, can save construction investment and reduction of erection time in a large number simultaneously.

Description of drawings

The structural representation of the waterwall that the pile body that Fig. 1 forms for the churning method of prior art is linked to be;

Fig. 2 is the structural representation of pile device of the injection slip casting of a kind of special-shaped pile body of the present utility model;

Fig. 3 is the sectional view of a kind of special-shaped pile body of forming of the pile device of the injection slip casting of a kind of special-shaped pile body of the present utility model;

The structural representation of the waterwall that the special-shaped pile body that Fig. 4 forms for the pile device of the injection slip casting of a kind of special-shaped pile body of the present utility model is linked to be.

The specific embodiment

In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:

See also Fig. 2, the pile device of the injection slip casting of a kind of special-shaped pile body of the present utility model comprises swiveling head 1, playpipe 2, shower nozzle 3, and wherein, swiveling head 1 is fixed on the upper end of playpipe 2, and it is used for carrying high-pressure medium when playpipe 2 rotations and lifting; The inside of swiveling head 1 and playpipe 2 has 1～4 track media passage (not shown) respectively, can be according to the media such as condition difference transporting water, cement paste, compressed air such as speed, soil property situation, stake bit depth and rig hoisting velocity of pressure, injection stream; Shower nozzle 3 is connected the lower end of playpipe 2, offers one or several jets 30 on the perisporium of shower nozzle 3, if offer a jet 30, this jet 30 can vertical setting with the perisporium of shower nozzle 3 or with the angled setting of the perisporium of shower nozzle 3; If offer several jets 30, these jets 30 are located on the different level of perisporium of shower nozzle 3, and can vertical setting with the perisporium of shower nozzle 3 or with the angled setting of the perisporium of shower nozzle 3.

See also Fig. 3 and Fig. 4 again, the pile device of the injection slip casting of a kind of special-shaped pile body of the present utility model sprays method surely in same stake position combination, churning method or pendulum spray method are sprayed through one or many and are formed the special-shaped pile body 4 that has single wing or have multidirectional a plurality of wings, this abnormity pile body 4 is to have single wing 41 on the main pile body 40 or have multidirectional a plurality of wing 41, the length of these wings 41 is changeable, and length can be identical or inequality, waterwall 5 or leakage stop that a plurality of special-shaped pile bodies 4 are linked to be have been eliminated the slit, thereby improved the degree of safety of underground waterwall and leakage stop greatly, can save construction investment and reduction of erection time in a large number simultaneously.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims

1. the pile device of the injection slip casting of a special-shaped pile body, comprise playpipe, be fixed on the swiveling head of playpipe upper end and be connected the Conic nozzle of playpipe lower end, it is characterized in that, offer one or several jets on the perisporium of described shower nozzle, these jets are located on the different level of perisporium of shower nozzle, and can vertical setting with the perisporium of shower nozzle or with the angled setting of the perisporium of shower nozzle.

2. the pile device of the injection slip casting of a kind of special-shaped pile body according to claim 1 is characterized in that, the inside of described playpipe and swiveling head has 1～4 track media passage respectively.