CN218373080U

CN218373080U - Roadbed in-situ solidification construction device

Info

Publication number: CN218373080U
Application number: CN202222644039.XU
Authority: CN
Inventors: 陈干; 张志富; 雷宇; 刘特
Original assignee: CCCC SHB First Engineering Co Ltd
Current assignee: CCCC SHB First Engineering Co Ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-01-24
Anticipated expiration: 2032-10-09

Abstract

The utility model discloses a road bed solidifies construction equipment on spot, include: the excavator can walk, a stirring head is arranged on an excavating arm of the excavator, and the stirring head can rotate under the driving of a power system; the guniting pipeline is arranged on the stirring head in the inner part, the surface of the stirring head is provided with a plurality of guniting holes, and the guniting holes are communicated with the guniting pipeline; and the curing agent feeding system is arranged behind the excavator and is connected to the guniting pipeline. The roadbed in-situ solidification construction device can carry out solidification treatment on the soft foundation in situ to form an artificial hard shell layer, thereby avoiding earth excavation; and a large amount of block stone filler is not needed to be filled, the transported sludge is not needed to be dug and removed, the site mechanical work is realized, the construction period is short, and the effect is good.

Description

Roadbed in-situ solidification construction device

Technical Field

The utility model relates to a road bed solidifies construction field on spot. More specifically, the utility model relates to a road bed solidifies construction equipment on spot.

Background

Various foundation conditions are frequently encountered in the road construction process, if soft foundations are encountered, the soft foundations need to be treated in order to ensure the quality of the road, the sludge is generally dug and transported, and a large amount of block stone fillers are filled, but the method is poor in economy and pollutes the environment.

Therefore, a construction device capable of performing curing treatment on the soft foundation on site is needed to perform soft foundation treatment by a ground curing intensive stirring method instead of the traditional replacement and filling method.

SUMMERY OF THE UTILITY MODEL

To achieve these objects and other advantages in accordance with the purpose of the invention, as embodied and broadly described, there is provided a roadbed in-situ solidification construction device, comprising:

the excavator can walk, a stirring head is arranged on an excavating arm of the excavator, and the stirring head can rotate under the driving of a power system;

the guniting pipeline is arranged on the stirring head, a plurality of guniting holes are formed in the surface of the stirring head, and the guniting holes are communicated with the guniting pipeline;

and the curing agent feeding system is arranged behind the excavator and is connected to the guniting pipeline.

According to the utility model discloses a preferred embodiment, the stirring head includes two sub-stirring heads that bilateral symmetry set up, two sub-stirring head sets up along excavating arm bilateral symmetry, the two all with excavating arm is 120 contained angles, is 120 contained angles between two sub-excavation heads.

According to the utility model discloses a preferred embodiment, sub-agitator head includes agitator head main part and first stirring rake, the agitator head main part connect in on the digging arm, the agitator head main part is cylindricly, first stirring rake sets up agitator head main part front end, for the circular structure by a plurality of stirring sword, all stirring sword one end are close to each other and form the centre of a circle, and the centre of a circle is kept away from to the other end.

According to the utility model discloses a preferred embodiment, along the direction of progressively keeping away from the centre of a circle, the height of stirring sword reduces in proper order, every the stirring sword is located centre of a circle department and is the highest, the back of a knife blade of stirring sword connect in stirring first main part front end, the cutting edge of stirring sword is kept away from forward stirring first main part front end.

According to the utility model discloses a preferred embodiment, still be provided with the second stirring rake on the sub-stirring head, the second stirring rake includes annular boss and round platform form plate body, annular boss hoop sets up in the stirring head main part, just annular boss with the integrative setting of stirring head main part, annular boss hoop round is provided with the whitewashing hole, the inside cavity of round platform form plate body, its hoop cover is established outside the stirring head main part, just with annular boss fixed connection.

According to the utility model discloses a preferred embodiment, the surface of round platform form plate body is provided with a plurality of blades.

According to the utility model discloses a preferred embodiment, be provided with the overlay on the spouting hole, the overlay with the spouting hole is circular, and the two size looks adaptations, the overlay covers the spouting hole surface, the overlay is made by rubber, the overlay surface is carved out and is formed rice style of calligraphy opening.

The utility model discloses at least, include following beneficial effect:

the roadbed in-situ solidification construction device can carry out solidification treatment on the soft foundation in situ to form an artificial hard shell layer, thereby avoiding earth excavation; and a large amount of stone fillers are not needed for filling, the transported sludge is not needed to be dug, the site mechanical work is realized, the construction period is short, and the effect is good.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a roadbed in-situ solidification construction device in one embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a stirring head according to another embodiment of the present invention.

Fig. 3 is a schematic structural view of a covering plate according to another embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present disclosure and to simplify the description, and are not intended to 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 thus the terms are not to be construed as limiting the invention.

It is understood that the terms "a" and "an" should be interpreted as meaning "at least one" or "one or more," i.e., that a quantity of one element may be one in one embodiment, while a quantity of another element may be plural in other embodiments, and the terms "a" and "an" should not be interpreted as limiting the quantity.

As shown in fig. 1 to 3, a preferred embodiment of the present invention provides a roadbed in-situ solidification construction device, which comprises:

the excavator 100 is capable of walking, the stirring head 300 is installed on the excavating arm 200 of the excavator 100, and the stirring head 300 can rotate under the driving of a power system;

the guniting pipeline 400 is arranged on the stirring head 300, a plurality of guniting holes 500 are formed in the surface of the stirring head 300, and the guniting holes 500 are communicated with the guniting pipeline 400;

and the curing agent feeding system 600 is arranged on the excavator 100, the curing agent feeding system 600 is arranged in the excavator at a hidden position, and the curing agent feeding system is connected to the guniting pipeline 400. The curing agent feeding system 600 mainly comprises a storage bin and a power delivery pump, wherein the storage bin is used for containing the curing agent, and the power delivery pump pumps the curing agent to the guniting pipeline 400.

In the above embodiment, the excavator 100 is used to provide power for the stirring head to stir and move, so as to drive the whole facility to walk. The excavator power of the excavator 100 can be adapted according to the size of the selected powerful stirring head 300, so that the hydraulic driving force and the stirring stability of the stirring head are ensured. The rotating speed of the stirring head is controlled to be 50 r/min-120 r/min.

The curing agent in the curing agent feeding system is conveyed to the guniting hole 500 through the guniting pipeline 400 to be output, and the output curing agent and the soil body are uniformly mixed under the strong stirring of the stirring head, so that the purpose of on-site curing is achieved.

During actual construction operation, the silt soil is solidified by adopting a mode of in-situ vertical up-and-down stirring solidification, in order to ensure the uniformity of stirring, the silt soil is vertically stirred for a plurality of times up and down within the depth range of solidification treatment, not less than 3 cycles are carried out, and the solidifying agent is sprayed while being stirred for the first 2 times. Meanwhile, the descending and lifting speed is controlled, too high speed can cause that part of silt soil is difficult to be uniformly mixed with the curing agent, and too low speed can cause that the curing agent is gathered, so that the caking of the curing agent is caused, and the uniformity of the cured soil is influenced. According to actual conditions, the number of times of air stirring can be increased by operators of the on-site curing equipment so as to ensure uniform stirring.

During curing construction, the strong stirring head vertically stirs the in-situ soil, and the specific construction steps are as follows:

(1) the in-situ soil is stirred by the in-situ solidification construction device of the roadbed;

(2) the roadbed on-site solidification construction device is operated forward to gradually and deeply stir and spray the curing agent until reaching the designed bottom (4 m depth) of solidification;

(3) the roadbed on-site solidification construction device reversely runs to slowly lift, stir and spray the curing agent, the speed of lifting or descending the stirring is controlled to be 10-20 s/m, the spraying speed of the curing agent is controlled to be 80-150 kg/min (slurry agent), the specific speed is correspondingly adjusted according to the actual operation condition on site, and the uniform spraying and stirring in the construction process are met.

Another preferred embodiment provides a concrete structure of the mixing head 300, the mixing head 300 comprises two sub-mixing heads 300 which are arranged in bilateral symmetry, two sub-mixing heads 300 are arranged in bilateral symmetry along the digging arm 200, both of the sub-mixing heads and the digging arm 200 form a 120-degree included angle, and a 120-degree included angle is formed between the two sub-mixing heads 200.

The stirring head 300 in the above embodiment adopts two sub-stirring heads 300, the two sub-stirring heads are symmetrically arranged, compared with the conventional single-head stirring, the stirring range is larger, and the stirring efficiency is higher.

According to the utility model discloses a preferred embodiment, sub-agitator head 300 includes agitator head main part 310 and first stirring rake, agitator head main part 310 connect in on the digging arm 200, agitator head main part 310 is cylindricly, first stirring rake sets up agitator head main part 310 front end, for the circular structure by a plurality of stirring sword 320, all 320 one ends of stirring sword are close to each other and form the centre of a circle, and the centre of a circle is kept away from to the other end. Along the direction of keeping away from the centre of a circle gradually, the height of stirring sword 320 reduces in proper order, every stirring sword 320 is located centre of a circle department and is the highest, the back of a knife blade of stirring sword 320 connect in stirring head main part 310 front end, the cutting edge of stirring sword is kept away from forward stirring head main part 310 front end. The stirring knife 320 is obliquely arranged, and compared with the plane arrangement, the stirring knife can generate larger cutting force in the stirring process, the stirring effect is better, the size of the stirring head main body 310 is larger, and the strength is higher.

According to the utility model discloses a preferred embodiment, still be provided with second stirring rake 330 on the sub-stirring head 300, second stirring rake 330 includes annular boss 331 and round platform form plate body 332, annular boss 331 hoop sets up on the stirring head main part 310, just annular boss 331 with the integrative setting of stirring head main part 310, annular boss 331 hoop round is provided with whitewashing hole 500, the inside cavity of round platform form plate body 332, its hoop cover is established outside stirring head main part 310, just with annular boss 331 fixed connection. The outer surface of the circular truncated cone-shaped plate 332 is provided with a plurality of blades 333. With the rotation of the mixing head main body 310, the blades 333 on the annular boss 331 also rotate along with the rotation of the mixing head main body, so as to perform cutting and mixing on soil layers. And as the stirring is carried out, the stirred curing agent is sprayed out from the guniting hole 500 and mixed into the soil layer.

According to the utility model discloses a preferred embodiment, be provided with the overlay 600 on the spouting hole 500, overlay 600 with the spouting hole 500 is circular, and the two size looks adaptation, overlay 600 covers the spouting hole 500 surface, overlay 600 is made by rubber, overlay 600 surface is cut out and is formed rice style of calligraphy opening 610, through set up overlay 600 on spouting hole 500 surface, when not spouting, overlay 600 can play the purpose of avoiding soil to block up the spouting hole, and overlay 600 is made by flexible material, can go on along with the high pressure of spouting, and overlay 600 on spouting hole surface will be opened, and flexible material can be rubber.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. A roadbed in-situ solidification construction device is characterized by comprising:

2. The roadbed in-situ curing construction device of claim 1, wherein the stirring head comprises two sub-stirring heads which are arranged in bilateral symmetry, the two sub-stirring heads are arranged in bilateral symmetry along the excavating arm, both the sub-stirring heads and the excavating arm form an included angle of 120 degrees, and an included angle of 120 degrees is formed between the two sub-stirring heads.

3. The roadbed in-situ curing construction device as claimed in claim 2, wherein the sub-stirring head comprises a stirring head main body and a first stirring paddle, the stirring head main body is connected to the excavating arm, the stirring head main body is cylindrical, the first stirring paddle is arranged at the front end of the stirring head main body and is of a circular structure formed by a plurality of stirring knives, one ends of all the stirring knives are close to each other to form a circle center, and the other ends of all the stirring knives are far away from the circle center.

4. The roadbed in-situ curing construction device as claimed in claim 3, wherein the heights of the stirring knives are sequentially reduced along the direction gradually away from the center of the circle, each stirring knife is located at the highest position at the center of the circle, the back of each stirring knife is connected to the front end of the stirring head main body, and the cutting edge of each stirring knife is forward away from the front end of the stirring head main body.

5. The roadbed in-situ curing construction device according to claim 2, wherein a second stirring paddle is further arranged on the sub-stirring head, the second stirring paddle comprises an annular boss and a circular platform-shaped plate body, the annular boss is annularly arranged on the stirring head main body, the annular boss and the stirring head main body are integrally arranged, the annular boss is annularly and circularly arranged in the spraying hole, the circular platform-shaped plate body is hollow inside, and the annular boss is fixedly connected with the annular boss outside the stirring head main body.

6. The roadbed in-situ curing construction device as claimed in claim 5, wherein the outer surface of the circular truncated cone-shaped plate body is provided with a plurality of blades.

7. The roadbed in-situ curing construction device as claimed in claim 4, wherein the guniting hole is provided with a covering plate, the covering plate and the guniting hole are circular and are matched in size, the covering plate covers the surface of the guniting hole and is made of rubber, and the surface of the covering plate is cut to form a Chinese character 'mi' shaped opening.