CN218954205U

CN218954205U - Pipe jacking construction device

Info

Publication number: CN218954205U
Application number: CN202222880748.8U
Authority: CN
Inventors: 杜晓伟; 巩鑫; 张强; 杜有秀; 尹鹏; 牛超; 司鹏孔; 张海波; 陈仁山; 葛正栋
Original assignee: Municipal Environmental Protection Engineering Co ltd; China Railway First Engineering Group Co Ltd
Current assignee: Municipal Environmental Protection Engineering Co ltd; China Railway First Engineering Group Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-05-02
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a pipe jacking construction device which comprises a pipeline and a base, wherein a cylindrical groove is formed in the left side of the base, a top plate is arranged above the cylindrical groove, an opening is formed in the right side of the cylindrical groove, the middle of the opening is inserted with the pipeline, a reaming bit is arranged on the left side of the pipeline, the right side of the pipeline is connected with a flange, a rotating shaft is arranged on the right side of the flange, a guide drill rod is coaxially connected with a right side thread of the rotating shaft, a motor is arranged on the right side of the base, and the guide drill rod is connected with the motor through a driving wheel. The pipeline laying precision is high, and the gravity flow requirement of the drainage pipeline is met through theodolite laser guidance; the work pit occupies small area, so that the excavation surface is greatly reduced, and only one work pit can be excavated for hook head access construction; after the pipeline is paved, no gap exists between the pipe wall and the soil layer, and no hidden danger of sedimentation exists; the existing road is not damaged, and the influence on traffic is small.

Description

Pipe jacking construction device

Technical Field

The utility model belongs to the technical field of constructional engineering, and particularly relates to a jacking pipe construction device.

Background

The pipe jacking construction is a non-excavation construction method, and is a pipeline buried construction technology with no excavation or little excavation. The pipe jacking construction is to overcome the friction force between the pipeline and the surrounding soil by means of the jacking equipment in the working pit, jack the pipeline into the soil according to the designed gradient and transport away the earth. After one pipe is pushed into the soil layer, a second pipe is pushed into the soil layer. The principle is that by means of the thrust of the main top oil cylinder, the pipeline, the relay and the like, a tool pipe or a heading machine is pushed from the inside of a working pit to the inside of a receiving pit through a soil layer to be lifted. The pipeline is buried between two pits after following the tool pipe or the heading machine.

According to the prior document retrieval, chinese patent publication No. CN110080793B, published patent application No. 2021, 01 and 01 discloses a pipe jacking construction operation device, which comprises a track arranged on one side of a pipe jacking, a base is arranged on the track, a host is fixedly arranged on the base, and a drilling machine is arranged at one end of the host facing the pipe jacking; the main machine is provided with a front baffle towards one side of the jacking pipe, the front baffle is rotationally connected with a machine body of the main machine, a connecting hole is eccentrically formed in the front baffle, and the drilling machine is rotationally connected with the front baffle through the connecting hole. The applicant of the patent document believes that through a unique drilling machine structure, the removed soil is not excessively accumulated on the periphery of a drill rod, but the pipeline laying precision is low, and potential sedimentation hazards exist; the existing road is destroyed, and the influence on traffic is relatively large.

Disclosure of Invention

The utility model aims to provide a pipeline which has high laying precision and does not have hidden danger of sedimentation; the existing road is not damaged, and the pipe jacking construction device has small influence on traffic.

In order to achieve the above object, the present utility model adopts the following technical scheme:

the utility model provides a push pipe construction device, includes pipeline and base, the left side of base is equipped with the cylinder groove, the top of cylinder groove is equipped with the roof, the right side of cylinder groove is equipped with the opening, open-ended centre alternates there is the pipeline, the left side of pipeline is equipped with the reaming drill bit, the right side of pipeline is connected with the flange, the rotation axis is installed on the right side of flange, the right side screw thread coaxial coupling of rotation axis has the direction drilling rod, the right side of base is equipped with the motor, the direction drilling rod is in the same place through the drive wheel connection with the motor.

According to the above characteristics, the base is Z-shaped.

In some examples, a rubber ring is provided inside the connection of the flange and the rotating shaft.

According to the above features, a separator is connected between the pipe and the reamer bit.

In some examples, the top plate and the cylindrical groove are fixed through a buckle, and a through hole is formed in the middle of the top plate.

According to the above characteristics, the bottom of motor is equipped with the motor mounting panel, the lower left side of base is equipped with the backup pad, the drive wheel passes through the belt and drives.

In some examples, the concrete grade of the pipe tubing should not be lower than C40, with a pipe section length of 1000mm.

The beneficial effects of the utility model are as follows:

1) In the jacking pipe construction, jacking force is uniformly transmitted to the end face of the bell mouth through the flange with the rib plate welded at the socket, so that the socket is prevented from deforming and the outer protective layer is prevented from being damaged in the pushing operation.

2) The pipeline is light and convenient, and has small space and convenient installation. The outer wall of the pipeline is integrally coated with a reinforced concrete protective layer with a cylindrical structure.

3) The pipeline laying precision is high, and the gravity flow requirement of the drainage pipeline is met through theodolite laser guidance; the work pit occupies small area, so that the excavation surface is greatly reduced, and only one work pit can be excavated for hook head access construction; after the pipeline is paved, no gap exists between the pipe wall and the soil layer, and no hidden danger of sedimentation exists; the existing road is not damaged, and the influence on traffic is small.

Drawings

Fig. 1 is a schematic structural view of a pipe-jacking construction device according to the present utility model.

Fig. 2 is a schematic view of a connection structure of a flange and a rotary shaft according to the present utility model.

Fig. 3 is a schematic view of the connection structure of the pipe and the guiding drill rod according to the present utility model.

The figure shows: the drilling machine comprises a top plate, a 2-pipeline, a 3-reaming bit, a 4-cylindrical groove, a 5-base, a 6-supporting plate, a 7-buckle, an 8-opening, a 9-flange, a 10-rotating shaft, an 11-guiding drill rod, a 12-driving wheel, a 13-motor, a 14-motor mounting plate and a 101-through hole.

Detailed Description

Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While embodiments of the present utility model are illustrated in the drawings, it should be understood that the present utility model 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 utility model to those skilled in the art. Those skilled in the art can derive alternative solutions from the following description without departing from the spirit and scope of the utility model.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The object of the present utility model is to provide a pipe-jacking construction device which overcomes the problems of the prior art as described above and has the following advantages in combination with the following description.

A pipe-jacking construction device according to a first embodiment of the present utility model will be further described with reference to fig. 1 to 3.

Fig. 1 to 3 show schematic diagrams of a pipe jacking construction device according to the present utility model, according to a first embodiment of the present utility model, the pipe jacking construction device comprises a pipe 2 and a base 5, a cylindrical groove 4 is provided on the left side of the base 5, a top plate 1 is provided above the cylindrical groove 4, an opening 8 is provided on the right side of the cylindrical groove 4, the pipe 2 is inserted in the middle of the opening 8, a reamer bit 3 is provided on the left side of the pipe 2, a flange 9 is connected on the right side of the pipe 2, a rotary shaft 10 is mounted on the right side of the flange 9, a guiding drill rod 11 is connected on the right side of the rotary shaft 10 in a threaded coaxial manner, a motor 13 is provided on the right side of the base 5, the guiding drill rod 11 and the motor 13 are connected together through a driving wheel 12, and the base 5 is in a zigzag shape.

In some examples, a rubber ring is provided inside the connection of the flange 9 and the rotary shaft 10, and a separator is connected between the pipe 2 and the reamer head 3.

In some examples, the top plate 1 and the cylindrical groove 4 are fixed by a buckle 7, and a through hole 101 is arranged in the middle of the top plate 1. The bottom of motor 13 is equipped with motor mounting panel 14, and the left downside of base 5 is equipped with backup pad 6, and drive wheel 12 passes through the belt and drives, and the concrete grade of pipeline 2 tubular product should not be less than C40, and tube coupling length is 1000mm.

When the pipe jacking construction device is specifically used, the base 5 is arranged in a Z shape, so that the left-right height difference is conveniently formed, meanwhile, materials are conveniently saved, and the supporting plate 6 is arranged below the base 5, so that the stability of the device is conveniently maintained. The top plate 1 and the cylindrical groove 4 are fixed through the buckle 7, so that the top plate 1 and the cylindrical groove 4 form a whole. Set up opening 8 on cylindrical tank 4 for pipeline 2 just blocks, drives rotation axis 10 through guiding drilling rod 11 and rotates, bores soil through reamer bit 3, separates in the separator, then sends into pipeline 2 in, and the motor 13 that is equipped with on the right side of base 5 starts, and after the start motor, the guiding drilling rod 11 that drives drive wheel 12 connection rotates, rotates under the effect of belt, thereby impels reamer bit 3 to carry out corresponding work. The rubber ring is arranged in the connection of the flange 9 and the rotating shaft 10, so that the friction force between the flange 9 and the rotating shaft 10 can be enhanced, the rubber ring is a SIL silicon rubber sealing ring, the heat resistance and the cold resistance are good, the rubber ring can be stably applied to places with higher temperature, and the rubber ring also has excellent corrosion resistance and insulation.

The pipe material is a miniature spheroidal graphite cast iron pipe, the outer wall of the spheroidal graphite cast iron pipe with a T-shaped joint is integrally coated with a reinforced concrete protective layer with a cylindrical structure, and a pushing flange is welded at the socket part of the pipe. During pipe jacking construction, jacking force is uniformly transmitted to the end face of the bell mouth through the flange with the rib plate welded at the socket, so that socket deformation and damage of an outer protective layer are prevented in pushing operation.

The pipeline is light and convenient, and has small space and convenient installation. The outer wall of the pipeline is integrally coated with a reinforced concrete protective layer with a cylindrical structure.

In the micro-jacking pipe, DN600 has a longest jacking distance of 61.5 meters and DN800 has a longest jacking distance of 69 meters. The top pulling distance is long, and pipe joint and back safety checking calculation is needed.

Compared with the traditional large-caliber jacking pipe, the miniature jacking pipe has the technical advantages that:

1) The back jacking speed is high, and the softer the soil layer is penetrated, the faster the construction speed is;

2) The pipeline laying precision is high, and the gravity flow requirement of the drainage pipeline is met through theodolite laser guidance;

3) The work pit occupies small area, so that the excavation surface is greatly reduced, and only one work pit can be excavated for hook head access construction;

4) After the pipeline is paved, no gap exists between the pipe wall and the soil layer, and no hidden danger of sedimentation exists;

5) The existing road is not damaged (the diameter of the pipe jacking pit is 2.1-3.3 m), and the influence on traffic is small.

The dewatering in the influence range is carried out before jacking the jacking pipe, the pre-pumping time is not less than 15 days, the dewatering of the dewatering well adopts a dewatering mode of 'one-drop-to-bottom', and the water level of the jacking pipe before entering and exiting the tunnel is reduced to be 0.5m below the bottom of the pipe.

The top pipe well is provided with a drainage ditch along with soil excavation, a blind ditch form is required to be arranged if necessary, a water collecting well with the inner diameter of 0.6m and the depth of 0.8m is arranged in the well, a sewage pump is used for intermittently pumping water out of a foundation pit, and bottom sealing concrete is required to be poured in time after the foundation pit excavation reaches a designed elevation.

During pipe jacking construction, a water pump and a drainage pipeline which are arranged in a dewatering well are regularly checked, so that normal use is ensured during construction and in stormy weather and various emergencies.

The foregoing is merely a specific implementation of the disclosure, but the scope of the embodiments of the disclosure is not limited thereto, and any person skilled in the art may easily think of changes, substitutions or combinations within the technical scope of the embodiments of the disclosure or under the ideas of the embodiments of the disclosure, and all fall within the scope of the embodiments of the disclosure.

Claims

1. The utility model provides a push pipe construction device, includes pipeline (2) and base (5), its characterized in that the left side of base (5) is equipped with cylinder groove (4), the top of cylinder groove (4) is equipped with roof (1), the right side of cylinder groove (4) is equipped with opening (8), interlude in the centre of opening (8) has pipeline (2), the left side of pipeline (2) is equipped with reamer bit (3), the right side of pipeline (2) is connected with flange (9), rotation axis (10) are installed on the right side of flange (9), the right side screw thread coaxial coupling of rotation axis (10) has direction drilling rod (11), the right side of base (5) is equipped with motor (13), direction drilling rod (11) are in the same place through drive wheel (12) with motor (13).

2. A pipe jacking construction device according to claim 1, characterized in that said base (5) is "Z" -shaped.

3. The pipe jacking construction device according to claim 1, characterized in that a rubber ring is arranged in the connection between the flange (9) and the rotating shaft (10).

4. A pipe jacking construction device according to claim 1, characterized in that a separator is connected between the pipe (2) and the reamer head (3).

5. The jacking pipe construction device according to claim 1, characterized in that the top plate (1) and the cylindrical groove (4) are fixed through a buckle (7), and a through hole (101) is formed in the middle of the top plate (1).

6. The jacking pipe construction device according to claim 1, characterized in that a motor mounting plate (14) is arranged at the bottom of the motor (13), a supporting plate (6) is arranged at the left lower side of the base (5), and the driving wheel (12) is driven by a belt.

7. The pipe jacking construction device according to claim 1, wherein the concrete grade of the pipe (2) is not lower than C40, and the pipe joint length is 1000mm.