KR101138506B1 - Method for propelling pipe using continuative direction regulating - Google Patents

Abstract

PURPOSE: A pipe propulsion technique through the successive steering of indentation propulsion pipes applying to engineering works, a road, a railway, water resources, a structure, harbors, a water supply and drainage, and an environmental field is provided to autonomously steer a displacement of a propulsion direction between indentation propulsion pipes so that a connection faulty between each indentation propulsion pipe is solved by closely connecting the indentation propulsion pipes. CONSTITUTION: A pipe propulsion technique through the successive steering of an indentation propulsion pipe applying to engineering works, a road, a railway, water resources, a structure, harbors, a water supply and drainage, and an environmental field is as follows. A plurality of hydraulic cylinders(P1-1,P1-2) are fixed between indentation propulsion pipe(S1) primarily pressed and the inner circumference of the indentation pipe in the rear end part with a constant interval. Piston rods(Y2-1,Y2-2~Yn-1,Yn-2) of the hydraulic cylinders are respectively fixed to a plurality of rod brackets(B1-1,B1-2) responding to each piston rods to be circulated. The plurality of indentation propulsion pipes pressed and propelled is successively connected to the indentation propulsion pipes adjoining each other by the hydraulic cylinders and rod brackets. When a displacement of a propulsion direction between the indentation propulsion pipes pressed and propelled is created, the connection of the indentation propulsion pipes are steered through circulation of the piston rod by the rod brackets and an extension and compression of the hydraulic cylinders by the piston rod so that the connection is maintained.

Description

Method for Propelling Pipe using Continuative Direction Regulating for Civil, Road, Railway, Complex, Water, Structure, Harbor, Water and Sewerage and Environment

The present invention relates to a propulsion method for pre-indenting a press-fitting propulsion tube and installing a tunnel or a pipeline by linking buried pipes while post-excavating the soil inside the press-fitting propulsion tube, and more specifically, by excavation work. When multiple indentation propulsion tubes are arranged in a line and press-fitted, by flexibly steering the indentation direction within the tolerance between each indentation propulsion tube, the plurality of indentation propulsion tubes can be continuously operated without departing from the planned path. The present invention relates to a tube propulsion method through continuous steering of indentation propulsion pipes applied to civil engineering, roads, railways, complexes, water resources, structures, ports, water supply and sewage, and environmental fields to enable close connection in a steered state.

Generally, various wires and cables installed on the ground tend to be buried underground in the face of the information society, but since alliances are not smoothly established by various service companies, it is necessary to establish pipelines for each service company. Because it is often done, it is causing a lot of inconvenience to the people who pass.

For this reason, when the work of opening a new pipeline was started, a method was developed to detect the pipelines and gas pipelines buried underground and set up the pipeline laying route accordingly.

On the other hand, in the case of laying a pipeline as described above as well as tunnel construction under the railway, road, running water, etc., it is impossible to cut the soil, so in general, the propulsion pipe is pushed in, and the earth and sand inside the propulsion pipe is pushed. The excavation construction method of excavating and discharging has been adopted and used, and the applicant's patent application 10-2003-018242 and patent application 10-2002-003875 are related to the excavation construction method as described above, and the tunnel construction and the pipeline are established. In order to do this, the propulsion pipes and pipelines were press-fitted so that tunnels and pipelines could be opened.

In addition, as shown in Figure 1, because the buried pipe (3) connected between each press-fitted propulsion pipe (2) by the propulsion pipe pressurized propulsion device (1) installed in the rear end is pressurized in a straight line environment of the ground and earth and sand Depending on the conditions, the press-fitted propulsion pipe 2 may be off the pipeline buried path, but if the pipe-buried out of the buried path is in close contact between the press-fitted propulsion pipes continuously push-in pushed.

Therefore, in order to solve the poor connection of each press-fitted propulsion pipe and to correct the pipe laying route, the recalibration work of the poor-connected propulsion pipe must be carried out at each successive laying of the press-fitted propulsion pipe, which leads to an inevitable prolonged period of construction. In addition to the increase in construction costs, there is a problem that the traffic congestion and damage to the commercial area due to prolonged construction can be enormous.

The present invention has been made to solve the above-described problems, the object of which is to squeeze the indentation direction of the indentation propulsion between the pressurized propulsion pipes continuously press-fitted within the error range does not deviate from the path of the buried pipe initially set according to the obstacle avoidance design By providing a close connection between each indentation propulsion tube to enable a close connection, providing a protruding method through the continuous steering of the indentation propulsion tube to eliminate the poor connection between each indentation propulsion tube. will be.

According to the present invention for achieving the above object, by pre-indenting the indentation propulsion tube and using the cutter head machine inside the indentation propulsion tube after the excavation of the soil inside the indentation propulsion tube while connecting the buried pipe to the tunnel or pipeline In the continuous steering method of a plurality of indentation propulsion pipes which are press-propelled in a line during excavation work to be installed, a plurality of hydraulic cylinders are fixedly attached to the inner diameter surfaces of the indentation propulsion pipes pre-indented and the indentation propulsion pipes of the rear end. By rotatably coupling the piston rods of the cylinders respectively to the corresponding plurality of rod brackets, the indentation propulsion tubes adjacent to each other are continuously connected by the hydraulic cylinder and the rod bracket for each of the indentation propulsion tubes to be press-propelled. When the propagation direction is distorted between the pushed-in propulsion tubes to be propelled, a plurality of connecting the push-in propulsion tubes Pressing and compressing by the piston rod of the hydraulic cylinder, and the steering action by the rotation of the piston rod by the rod bracket to maintain a close connection between the indentation propulsion pipes of the propulsion direction is changed Provides a tube propulsion method through continuous steering of the propulsion tube.

According to the present invention as described above, in the manner of pre-indenting the press-fitting propulsion pipe and connecting the buried pipe while installing the tunnel inside the press-fitting propulsion pipe in the inside of the press-fitting propulsion pipe, through the cutter head machine When the multiple indentation propulsion pipes are continuously connected in a line along the pre-designed pipe laying path as the excavation work proceeds, if the indentation propulsion direction between the indentation propulsion pipes is changed within the limit not exceeding the error range of the pipe laying path By steering through the piston action and the directional loading action of the hydraulic cylinder and the rod bracket connected between each press-fitted propulsion pipe, each press-fitted propulsion pipe can be connected in close contact, respectively Since repetitive recalibration work is unnecessary as the direction of propulsion between them is different, It is possible to greatly reduce the cost and construction cost, and to minimize the traffic congestion period and damage of the commercial area around the construction section due to the shortening of the construction period.

1 is a view schematically showing a state in which the excavation work proceeds while pressing in the indentation propulsion pipe and buried pipe using a conventional propulsion pipe pushing propulsion apparatus,
Figure 2 is a perspective view of the main notch showing the state of the excavation work by the push-in propulsion pipe and buried pipe propulsion applied to the tube propulsion method through the continuous steering of the push-in propulsion tube according to the present invention,
3 is a cross-sectional view showing a state in which a hydraulic cylinder and a rod bracket are continuously connected and coupled between a plurality of press-fit propulsion tubes push-pushed according to a preferred embodiment of the present invention;
4 is an exemplary view for explaining a state in which a close connection between the press-fitted propulsion tube is made by steering the propulsion direction between the respective press-fitted propulsion pipe through the hydraulic cylinder and the rod bracket according to a preferred embodiment of the present invention.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view of the main cut-out showing the state of the excavation work by the pushing propulsion pipe and buried pipe propulsion applied to the tube propulsion method through the continuous steering of the indentation propulsion tube according to the present invention, Figure 3 is a preferred embodiment of the present invention According to the cross-sectional view showing a state in which the hydraulic cylinder and the rod bracket is continuously connected between the plurality of press-fitted propulsion pipe push-propulsion.

As shown in Figure 2 and 3, in the excavation work by the push-in propulsion pipe and buried pipe propulsion applied to the tube propulsion method through the continuous steering of the push-in propulsion tube according to the present invention, the propulsion tube shown in Figure 1 The press-fit propulsion pipe (S1) is pushed into the ground by the press-fit propulsion unit (1) to the ground, the press-fit propulsion pipe of the rear end connected by the buried pipe forming a pipe at the rear end of the press-fit propulsion pipe (S1) ( S2) is arranged, a continuous excavation work through the cutter head machine 100 and a plurality of indentation propulsion pipe (S3 ~ Sn) to the rear end of the arranged indentation propulsion pipe (S2) through the buried pipe is continuously arranged do.

On the outer side of the cutter head machine 100 located inside the press-propelled propulsion pipe S1 of the uppermost end, a separate slide moving tube 104 that is detachable from the cutter head machine 100 is inserted. A plurality of guide brackets 103 are fixedly attached to the outer diameter of 104 in the transverse direction with respect to the cylindrical shape of the tube.

The plurality of guide brackets 103 protrude from the outer diameter of the slide moving tube 104 by a predetermined thickness, and according to the protruding thickness, an inner diameter surface of the press-fit propelling tube 101 and an outer diameter of the slide moving tube 104. The surface is able to secure a space of a certain distance.

The cutter head portion 105 in which the plurality of soil discharge holes 105a is regularly partitioned is mounted at the tip of the cutter head machine 100 inside the slide moving tube 104. The frame between the earth and sand discharge holes 105a is equipped with a cutter 106 having a plurality of bits that can substantially excavate the ground.

In addition, at least one fixing bracket 107 is welded to the cutter head machine 100 positioned at the inner diameter of the slide moving tube 104, and the fixing bracket 107 is disposed on the inner diameter surface of the cutter head machine 100. At least three or more legs 107a are molded in the circumferential direction from the center point, and the ends of these legs 107a are welded to the inner diameter surface of the cutter head machine 100.

In addition, since the bearing block 108 is mounted at the center of the fixing bracket 107, the rotating shaft 109 connected to the rear end of the cutter head 105 is installed inside the bearing block 108, thereby stably free rotating. Be sure to

In addition, a driving motor 110 for rotating the rotating shaft 109 is fixed to the rear end of the fixing bracket 107 installed in the cutter head machine 100, and typically, the driving shaft of the driving motor 110 is directly cut. Although it may be directly coupled to the rear end of the head portion 105, in this case, the rotary shaft 109 of the cutter head portion 105 and the drive shaft of the drive motor 110 is coupled by the coupling 121, thereby maintaining and It is desirable to facilitate the inspection.

On the other hand, a plurality of hydraulic cylinders (P1-1, P1-2, P1-3) at regular intervals on the inner diameter surface of the front end of the press-fit propulsion pipe (S2) disposed at the rear end of the press-fit propulsion pipe (S1) of the uppermost end. A plurality of rod brackets B1-1 and B1- are fixedly attached to positions corresponding to the hydraulic cylinders P1-1, P1-2, and P1-3 on the inner diameter surface of the rear end of the uppermost press-fitted propulsion pipe S1. 2, B1-3) is fixedly attached.

The ends of the piston rods (Y1-1, Y1-2, Y1-3) of the hydraulic cylinders (P1-1, P1-2, P1-3) provided on the inner diameter surface of the front end of the rear end press-in propulsion pipe (S2), The plurality of rod brackets B1-1, B1-2, and B1-3 provided on the inner diameter surface of the rear end of the uppermost press-fitted propulsion pipe S1 are respectively bolted to each other, and each rod bracket B1-1 and B1- According to the directional loading action of 2, B1-3, each piston rod (Y1-1, Y1-2, Y1-3) is made to enable a certain angle rotation about the bolting coupling portion in the engaged state.

The press-fit propulsion pipe S1 at the uppermost end and the press-fit propulsion pipe S2 at the rear end include a plurality of hydraulic cylinders P1-1, P1-2, and P1-3 and a plurality of rod brackets B1-1 and B1-2. As connected by B1-3, the plurality of remaining indentation propulsion pipes S3 to Sn which are continuously press-propelled to the rear end of the indentation propulsion pipe S2 as shown in FIG. 3, respectively. A plurality of hydraulic cylinders (P2-1, P2-2, P2-3 to Pn-1, Pn-2, Pn-3) between the front end and the rear end of the adjacent press-fit propulsion pipe are each piston rod (Y2-1, Y2). Multiple rod brackets (B2-1, B2-2, B2-3 to Bn-1, Bn-2, Bn-3) through -2, Y2-3 to Yn-1, Yn-2, Yn-3 Is connected continuously.

Here, the lengths of the respective piston rods (Y2-1, Y2-2, Y2-3 to Yn-1, Yn-2, Yn-3) are set in consideration of the error range, and the piston rod is rotated in conjunction with it. Since the angle of rotation by each of the rod brackets B2-1, B2-2, B2-3 to Bn-1, Bn-2, and Bn-3 is limited, it is connected to the front and rear ends of the press-fitting propulsion pipe. By the interaction between the plurality of hydraulic cylinders and the rod bracket, the steering operation can be performed in a state that can not deviate from the error range of the pre-designed pipeline buried path, even if the indentation propulsion direction between each indentation propulsion pipe is changed.

In addition, the positions where the hydraulic cylinders P2-1, P2-2, P2-3 to Pn-1, Pn-2, and Pn-3 are fixedly attached to the inner diameter surfaces of the plurality of press-fitted propulsion tubes S2 to Sn. Between the tip of the press-fitting propulsion tube, a weak cut 101 is formed along the cylindrical shape of each of the press-fit propulsion pipes S2 to Sn.

Each of the weak incisions 101 does not completely separate and separate a predetermined portion of each indentation propulsion tube (S2 to Sn), but partially cuts only 1/3 to 1/2 of the thickness of the indentation propulsion tube. According to the steering operation of the press-fitted propulsion tube, the portion that is weakened by the partial incision can be separated.

According to the present invention made as described above, as the excavation work of the cutter head machine 100, as shown in Figure 4, a plurality of press-propelled propulsion to the rear end of the pre-indented push-in propulsion pipe (S1) Tubes S2, S3, S4, ... are press-driven in series in succession.

In this case, between the indentation propulsion pipes adjacently connected to each other, a connection section in which the indentation directions are mutually distorted may occur within a range not exceeding the tolerance range of the indentation buried path, for example, the indentation propulsion pipe S2 and the indentation When the propulsion directions of the propulsion pipes S3 are different from each other, a plurality of hydraulic cylinders P2-1, P2-2, P2-3 connected to the rear end and the front end of each press-fit propulsion pipe S2, S3 are provided. Piston rods (Y2-1, Y2-2, Y2-3) is to extend or compress the inside of the propulsion pipe respectively located in the direction in which the twist.

In addition, the plurality of rod brackets B2-1, B2-2, inside the rear end of the press-fitting propulsion pipe S2 to which the plurality of piston rods Y2-1, Y2-2, Y2-3 are rotatably coupled, respectively. B2-3 rotates the corresponding piston rods Y2-1, Y2-2, Y2-3 according to the expansion and compression of the corresponding piston rods Y2-1, Y2-2, Y2-3.

Piston rod through the extension and compression of the respective positions of the piston rod (Y2-1, Y2-2, Y2-3) and the corresponding rod brackets (B2-1, B2-2, B2-3) As the rotational action of (Y2-1, Y2-2, Y2-3) occurs, a tensile force is applied to the weak incision 101 formed in the indentation propulsion tube (S3), the weak incision ( The incision is made around the site where the tensile force is most strongly applied to the entire partial incision site of 101).

Accordingly, even if the pushing directions of the press-fitting propulsion pipe S2 and the press-fitting propulsion pipe S3 are different from each other, the close connection state of each of the press-fitting propulsion pipes S2 and S3 can be maintained as it is, Due to the steering action, it is possible to continue the normal indentation propulsion of the continuous indentation propulsion tube to the rear end, and even in the process, the steering operation can be performed within the tolerance range even if the inclination between the indentation propulsion tubes occurs.

While specific embodiments of the present invention have been described and illustrated above, it will be apparent that the present invention may be embodied in various modifications by those skilled in the art. Such modified embodiments should not be understood individually from the technical spirit or the prospect of the present invention, but should fall within the claims appended to the present invention.

100: cutter head machine, 101: weak incision,
S1-Sn: indentation propulsion pipe, 102: buried pipe,
103: guide bracket, 104: slide moving tube,
105: cutter head portion, 106: cutter,
107: fixing bracket, 108: bearing block,
109: rotation axis, 110: drive motor,
P1-1, P1-2, P1-3 to Pn-1, Pn-2, Pn-3: hydraulic cylinder,
Y2-1, Y2-2, Y2-3 to Yn-1, Yn-2, Yn-3: piston rod,
B2-1, B2-2, B2-3 to Bn-1, Bn-2, Bn-3: Rod bracket.

Claims (3)

delete Pre-indent the press-fitted propulsion pipe and use the cutter head machine inside the press-fitted propulsion pipe to post-excavate the soil inside the press-fitted propulsion pipe while connecting the buried pipes. In the tube propulsion method through the continuous steering of two indentation propulsion tubes,
A plurality of hydraulic cylinders are fixedly attached to the inner diameter surfaces of the pre-indented propulsion tube and the rear indentation propulsion tube, and the piston rods of the hydraulic cylinders are rotatably coupled to the corresponding plurality of rod brackets, respectively. Each of the plurality of press-fitted propulsion pipes are continuously connected to the press-fitted propulsion pipe adjacent to each other by a hydraulic cylinder and a rod bracket,
When the displacement of the propulsion direction between the press-fitted propulsion pipes to be press-fitted occurs, the steering action is caused by the extension and compression of the piston rods of the plurality of hydraulic cylinders connecting the press-fitted propulsion pipes and the rotation of the piston rod by the rod brackets. Including maintaining a close connection between the pressurized propulsion tubes having a reverse propulsion direction;
In the above step, each of the plurality of press-fitted propulsion pipes are partially cut between the position where each hydraulic cylinder is fixedly attached to the inner diameter surface and the tip of the press-fitted propulsion tube, the weak incision of the pressurized propulsion pipe is the propulsion direction is twisted A tube propulsion method through continuous steering of a press-fitting propulsion tube, characterized in that the cutting is applied by extension and compression of the piston rod of the hydraulic cylinder and rotation by the rod bracket. The method of claim 2,
In the above step, the length of each piston rod is set in consideration of the error range, the rotation angle of the piston rod by each rod bracket is limited, and the mutual connection of the plurality of hydraulic cylinder and the rod bracket connected to the same press-fit propulsion pipe By the action, the tube propulsion method through the continuous steering of the indentation propulsion tube, characterized in that the range of steering of the indentation propulsion direction between each indentation propulsion tube is within the error range of the pre-designed pipeline buried path.

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