KR101778201B1 - Propulsion method to lift boring machine in water - Google Patents

Abstract

The present invention relates to a semi-shield method comprising the steps of installing a propulsion tunnel having a length longer than that of a unit propulsion pipe under the ground; arranging a boring machine in a side wall of the propulsion tunnel and drilling the ground by driving the boring machine; pressing a first propulsion pipe to a back end of the boring machine into a pipe line formed by drilling by the boring machine; coupling the boring machine and the first propulsion pipe to each other by means of a separation and coupling unit; forming a propulsion pipe line connecting the ground and water by drilling to a target underwater position of the boring machine and pressing successive propulsion pipes sequentially following the first propulsion pipe; preventing water from coming into the boring machine and the propulsion pipe line by installing a pair of external diameter variable partition walls in a boundary region between the boring machine and the first propulsion pipe; connecting a tow rope to the boring machine positioned in the water; separating the boring machine from the first propulsion pipe by separating the separation and coupling unit; and pulling the tow rope above the ground to raise the boring machine to the ground. Each of the pair of external diameter variable partition walls includes: a rubber tube expanding and contracting depending on whether air is input or not; a pair of metal supporting plates disposed vertically in middle regions of both sides of the rubber tube and having screw coupling holes formed therethrough; and an external diameter adjusting screw inserted through the pair of metal supporting plates and adjusting an external diameter of the rubber tube by adjusting a distance between the pair of rubber plates.

Description

{PROPULATION METHOD TO LIFT BORING MACHINE IN WATER}

The present invention relates to a pipe propulsion method, and more particularly, to a pipe propulsion method capable of raising a lead body capable of recovering a lead body by separating and lifting the lead body without reaching from a sea or a river which is difficult to reach.

The pipe propulsion method is being used to construct a pipeline for storing sewage facilities and various underground facilities in the ground. An example of the pipe propulsion method is the semi-shield propulsion method. An example of a conventional semi-shield propulsion method is disclosed in Patent No. 10-1007587 entitled " In-line Propulsion and Shield Joining Trigger Method and Excavator Used therein ".

1 is a schematic view schematically showing a process of a conventional pipe propulsion method. As shown in FIG. 1 (a), in the conventional pipe propulsion method, a propelling hole 11, which is slightly longer than the length of the propelling tube, is installed in the ground at the time when the pipe is to be buried, The guide body 20 is disposed and the guide body 20 is driven by the controller 30 to pivot the ground A. At this time, the process of continuously injecting the unit propulsion tubes 40 by discharging the soil introduced into the lead body 20 is repeated.

1 (b), when the propelling tube 40 is buried up to the reaching hole 13 provided at the end point at which the tube is to be embedded, the lead body 20 at the reaching base provided at the upper portion of the reaching hole 13 ) Was pulled apart from the propelling pipe (40).

The conventional pipe propulsion device 10 starts to bury the propeller in the propeller (viewpoint 11) and propels the propeller 20 to the reaching port (end point 13) It is separated from the propelling tube 40 and pulled up to be recovered.

However, in the case of using the above-mentioned conventional pipe propulsion method, when the end point of the pipe propulsion is underwater such as sea or river, temporary provisional base is constructed in the sea or river to recover the lead body, I had to dismantle the base.

In this case, the process is also complicated and the cost is increased.

Therefore, it is necessary to develop a new technology capable of recovering the lead body in water.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a method for pushing a lifting impeller in a leading body without lifting an access port in water.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

The object of the present invention can be achieved by a pipe propulsion method in which a lead body can be raised in water. The pipe propulsion method of the present invention includes the steps of installing a propelling hole having a length longer than the length of the unit propulsion pipe in the underground; Disposing a lead body on a sidewall of the propelling hole and driving the lead body to pivot the ground; Pressing the first propelling tube into the rear end of the lead body into the conduit formed by punching the lead body; Coupling the lead body and the first propelling tube to each other by means of separate coupling means; Forming a propulsion conduit connecting the underground and the underwater by sequentially pushing the succeeding propulsion pipe successively to the first propulsion pipe until the lead body is pushed to a desired underwater position; Providing a pair of outer diameter variable partition walls in a boundary region between the guide body and the first propeller tube to prevent water from flowing into the guide body and the propeller tube; Coupling the tow rope to the lead body located in the water; Separating the separating and combining means to separate the first conductor and the first propeller; And pulling up the towing rope to the ground by towing the tow rope, wherein the pair of outer diameter varying partition walls each have a rubber tube which expands and contracts according to whether air is injected; A pair of metal support plates disposed perpendicularly to both sides of the rubber tube and having threaded holes formed therein; And an outer diameter adjusting screw inserted through the pair of metal supporting plates to adjust an outer diameter of the rubber tube by adjusting an interval between the pair of rubber plates.

According to an embodiment, the outer diameter variable barrier may further include a rubber ring coupled to an edge region of the rubber tube to seal the inner wall surface of the guide body and the inner wall surface of the guide pipe, respectively.

According to one embodiment, the threaded holes of the pair of metal supporting plates are formed in directions opposite to each other, and the outer diameter adjusting screw is threaded in a direction in which the upper region and the lower region are opposed to each other along the axial direction So that the distance between the pair of metal supporting plates is widened or narrowed according to the inserting direction of the outer diameter adjusting screw to the pair of metal supporting plates, and the outer diameter of the rubber tube can be adjusted.

The pipe propulsion method according to the present invention is capable of lifting a leading object in water, thereby eliminating the need to provide a separate arrival base, thereby reducing the construction cost and shortening the construction period. Therefore, it has the advantage of reducing the construction cost and increasing the efficiency of the pipe propulsion method.

In addition, since the pipe propulsion method according to the present invention uses a variable partition to seal the lead body and the propulsion tube, there is an advantage that the propulsion tube can be used in a compatible manner with a conductor having various diameters.

1 is a schematic view schematically showing a process of a conventional pipe propulsion method,
2 and 3 are cross-sectional views schematically showing the process of the pipe propulsion method according to the present invention.
4 is an enlarged cross-sectional view illustrating the structure of a pipe propulsion device according to the present invention.
5 is a front view and a side sectional view showing the configuration of the variable partition wall of the pipe propulsion device according to the present invention.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

2 and 3 are schematic views schematically showing a pipe propulsion process using the pipe propulsion device 100 according to the present invention.

As shown in the drawing, the pipe propulsion device 100 according to the present invention includes a guide 110 for excavating and claying gravel and forming a channel, a propulsion tube 120 press-fitted into a channel formed by the guide 110, A separating and coupling means 130 provided at a boundary region X between the lead 110 and the propulsion tube 120 for detachably coupling the lead 110 and the propulsion tube 120, A pair of outer diameter variable barrier ribs 140 and 150 coupled to both ends of the guide body 110 and the guide pipe 120 to form a space between the guide body 110 and the propeller tube 120 in a watertight space, And a control unit (not shown) for controlling the outer diameter variable barrier ribs 140 and 150.

The leading body 110 is provided with a cutter bit 111 at the front thereof to excavate the underground gravel and open at one side so as to remove the excavated gravel.

Although not shown in the drawing, the lead body 110 is provided with a rotating means for rotating the lead body 110, a vibrating means for vibrating forward and backward, a power means for applying power, and the like, .

The propelling tube 120 is press-fitted into a conduit formed by the guide body 110. The propulsion pipe 120 is formed by press-fitting the unit propulsion pipes of a unit length. In the drawing, the propulsion tube 120 is shown as one continuous tube, but in reality, a plurality of unit propulsion tubes are connected and formed.

At the rear end of the propelling tube 120, a propelling jack 160 for press-fitting the propelling tube 120 into a conduit is provided.

The separating and coupling means 130 is provided in a boundary region X between the rear end of the lead 110 and the tip of the propulsion tube 120 to detachably connect the lead body 110 and the propulsion tube 120.

As shown in FIGS. 2 and 4, the guide body 110 and the propelling tube 120 are press-fitted in a state in which they are disposed adjacent to each other. A plurality of lead coupling means 133 are coupled along the inner wall surface at the rear end of the lead body 110 and a tip end of the first lead tube 121 (see FIG. 4) into which the lead body 110 is first press- On the inner wall surface, the propulsion pipe separating means (131) is coupled to the position corresponding to the lead fastening means (133).

When the first guiding pipe 121 is press-fitted next to the guiding body 110, the worker enters the boundary area X, and the guiding coupling unit 133 And the propeller tube separating means 131 are coupled to each other to fix the propeller tube 120 and the lead body 110 to each other.

3, the operator enters the boundary region X and moves the lead coupling means 133 and the propulsion pipe separating means 131 to the desired position, To operate.

Here, the separating and coupling means 130 may be provided by various means capable of detachably coupling the first propelling tube 121 and the lead body 110. For example, it may be provided in the form of a hydraulic cylinder or may be formed of a mechanical structure.

The pair of outer diameter variable barrier ribs 140 and 150 are disposed on the left and right of the boundary region X so that when the propulsion tube 120 and the lead body 110 are separated from each other by the separation and coupling means 130, And prevents the water from flowing into the inside of the guide body 110. As shown in FIG.

FIG. 4 is an exemplary view showing an installation state of the outer diameter variable barrier ribs 140 and 150, and FIG. 5 is an exemplary view showing a structure of the outer diameter variable barrier ribs 140 and 150. Here, the first outer diameter variable barrier ribs 140 and the second outer diameter variable barrier ribs 140 and 150 are different from each other only in their installation positions.

The first outer diameter variable partition wall 140 is installed at the rear end of the guide 110 to prevent water from flowing into the guide body 110 and the second outer diameter variable partition walls 140 and 150 are connected to the first guide pipe 121 So that water is prevented from flowing into the interior of the propulsion tube 120, which is installed at the front end and is subsequently connected.

The outer diameter variable barrier ribs 140 and 150 of the present invention are elastically adjustable in diameter and can be installed in the interior of the first guiding tube 121 or the first guiding tube 121 having various diameters.

As shown in FIG. 5A, the first outer-diameter-varying partition wall 140 includes a rubber tube 143 that expands or contracts depending on whether air is injected or not, A sealing ring 145 coupled to the rim region of the rubber tube 143 to closely support the inner wall surface of the channel and a pair of metal supporting plates 141, An outer diameter adjusting screw 147 for adjusting the diameter of the rubber tube 143 and an air injecting unit 149 for injecting air into the rubber tube 143.

The rubber tube 143 expands or contracts depending on whether air is injected. A pair of metal supporting plates 141 are coupled to the central region of the rubber tube 143. A screw insertion hole 141a is formed through the center of the metal support plate 141. [ The screw insertion holes 141a of the pair of metal supporting plates 141 are formed with screw threads in mutually opposite directions.

The first screw thread 147a and the second screw thread 147b are formed in different directions in the outer diameter adjusting screw 147 as well.

Thus, when the operator rotates the outer diameter adjusting screw 147 in the direction of inserting the outer diameter adjusting screw 147 into the rubber tube 143 as shown in FIG. 5A, the pair of metal supporting plates 141 are brought close to each other, The outer diameter R1 of the crushed rubber tube 143 becomes large.

On the other hand, when the worker rotates the outer diameter adjusting screw 147 in the direction of separating the outer diameter adjusting screw 147 to the outside of the rubber tube 143 of the first outer diameter varying partition wall 140 as shown in FIG. 5 (b) 141 are spaced apart from each other, the width becomes wider, and the outer diameter R2 of the rubber tube 143 becomes smaller (R1> R2).

The operator adjusts the outer diameter adjusting screw 147 such that the outer diameter of the rubber tube 143 is larger than the outer diameter of the guide body 110 by adjusting the outer diameter adjusting screw 147, Or the inner diameter (D) of the propelling tube (120).

When air is injected into the rubber tube 143 through the air injection unit 149, the rubber tube 143 expands and is inserted into the inner diameter D of the guide body 110 or the propelling tube 120, So that it is prevented from being introduced into the inside.

At this time, a sealing ring 145 is provided at the rim of the rubber tube 143 to closely support the inner diameter D of the guide body 110 or the propelling tube 120 to block the inflow of water.

A pipe propulsion method using the pipe propulsion device 100 of the present invention having such a configuration will be described with reference to Figs. 2 to 5. Fig.

First, the propelling hole (11) is installed at the time when the pipe is to be filled. A propelling jack (160) is installed in the propelling hole (11), and a lead body (110) is disposed on the side wall of the propelling hole (11). The control unit (not shown) drives the guide 110, and the guide 110 excavates the underground gravel and forms a channel to move forward. The first propelling tube 121 is located in the propelling hole 11 and is press-fitted into the conduit formed by the guide body 110.

Here, the lead coupling means 133 is coupled to the rear end of the lead body 110 and the propulsion tube separating means 131 is coupled to the inner wall surface of the first propulsion tube 121 before the pipe propulsion method is performed.

When the first propelling tube 121 is brought into contact with the rear end of the lead 110, the operator joins the separating and coupling means 130 as shown in FIG. The lead coupling means 133 positioned at the rear end of the lead body 110 and the propulsion tube separating means 131 located at the tip of the propulsion tube 120 are coupled to each other.

Then, the unitary propelling tube 120 is press-fitted after the lead body 110 is driven again and the lead body 110 advances.

When the lead body 110 reaches the target point in the water by repeating this process, the operator installs the outer diameter variable partitions 140 and 150 on the left and right of the boundary point X as shown in FIG.

The first outer diameter variable partition wall 140 is provided at the rear end of the guide body 110 and the second outer diameter variable partition wall 150 is installed at the tip of the propulsion tube 120.

The worker inserts the first outer diameter variable partition wall 140 vertically to the rear end of the lead body 110 and inserts or retracts the outer diameter adjustment screw 147 so that the outer diameter of the rubber tube 143 becomes larger than the inner diameter of the lead body 110 The outer diameter of the rubber tube 143 is adjusted so as to be in contact with the wall surface.

When the outer diameter of the rubber tube 143 is adjusted, the control unit (not shown) is driven so that the air injection unit 149 injects air into the rubber tube 143. The rubber tube 143 expands and is supported by the inner wall surface of the conductor 110 by air.

At this time, the sealing ring 145 coupled to the outer circumferential surface of the rubber tube 143 doubles the inner wall surface of the guide body 110. When the first outer diameter variable barrier ribs 140 are installed, the second outer diameter variable barrier ribs 150 are installed at the tip of the propulsion pipe 120 in the same process.

When the installation of the first outer diameter variable barrier rib 140 and the second outer diameter variable barrier rib 150 is completed, the diver C joins the tow rope D to the lead body 110 in the water B. When the coupling of the traction ropes D is completed, the coupling of the propulsion pipe separating means 131 and the lead coupling means 133 is released by the control of the control unit (not shown). Here, for the safety of the operator, the separation of the propulsion pipe separating means 131 and the lead coupling means 133 is controlled remotely.

As shown in FIG. 3, when the traction rope D is pulled up from the ground, the lead body 110 is raised to the ground. Since the tip of the propulsion tube 120 located in the water is blocked by the second outer diameter variable barrier ribs 140 and 150, the inflow of water into the propulsion tube 120 is blocked.

As described above, according to the pipe propulsion method of the present invention, it is not necessary to provide a separate reaching base because it is possible to raise the leader in water, thereby reducing the construction cost and shortening the construction period. Therefore, it has the advantage of reducing the construction cost and increasing the efficiency of the pipe propulsion method.

In addition, since the pipe propulsion method according to the present invention uses a variable partition to seal the lead body and the propulsion tube, there is an advantage that the propulsion tube can be used in a compatible manner with a conductor having various diameters.

The embodiments of the pipe propulsion method of the present invention described above are merely illustrative and those skilled in the art will appreciate that various modifications and equivalent embodiments can be made by those skilled in the art. It will be possible. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

100: Tube propulsion device 110: Leader
111: Cutter bit 120: Propeller
130: separating and coupling means 131:
133: lead fastening means 140: first variable barrier rib
141: metal support plate 141a: screw insertion hole
143: rubber tube 145: sealing ring
147: outer diameter adjusting screw 147a: first thread
147b: second thread 149: air injection part
150: second variable barrier rib 160:
A: Underground
B: Underwater
C: diver
D: Towing ropes

Claims (3)

Installing a propeller having a length longer than the length of the unit propulsion tube in the basement;
Disposing a lead body on a sidewall of the propelling hole and driving the lead body to pivot the ground;
Pressing the first propelling tube into the rear end of the lead body into the conduit formed by punching the lead body;
Coupling the lead body and the first propelling tube to each other by means of separate coupling means;
Forming a propulsion conduit connecting the underground and the underwater by sequentially pushing the succeeding propulsion pipe successively to the first propulsion pipe until the lead body is pushed to a desired underwater position;
Providing a pair of outer diameter variable partition walls in a boundary region between the guide body and the first propeller tube to prevent water from flowing into the guide body and the propeller tube;
Coupling the tow rope to the lead body located in the water;
Separating the separating and combining means to separate the first conductor and the first propeller;
Pulling the traction rope over the ground to raise the conductor to the ground,
The pair of outer diameter variable partition walls are each formed of a metal plate,
A rubber tube that expands and contracts depending on whether air is injected;
A pair of metal support plates disposed perpendicularly to both sides of the rubber tube and having threaded holes formed therein;
And an outer diameter adjusting screw inserted through the pair of metal supporting plates to adjust an outer diameter of the rubber tube by adjusting an interval between the pair of rubber plates,
The outer diameter-
Further comprising a rubber ring coupled to a rim of the rubber tube for contact-sealing the inner wall surface of the guide body and the inner wall surface of the guide tube, respectively. delete The method according to claim 1,
Wherein the threaded holes of the pair of metal supporting plates are formed with threads in directions opposite to each other,
The outer diameter adjusting screw is formed with threads in the direction in which the upper and lower regions face each other along the axial direction,
Characterized in that the distance between the pair of metal supporting plates is widened or narrowed in accordance with the inserting direction of the outer diameter adjusting screw to the pair of metal supporting plates to adjust the outer diameter of the rubber tube. Method.

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