KR102055124B1 - Leading pipe propulsion system with improved directionality and propulsion method using thereof - Google Patents

Abstract

The present invention relates to a semi-shield propulsion system including propulsion straightness and a semi-shield propulsion method using the same. The purpose of the present invention is to provide the semi-shield propulsion system including propulsion straightness, capable of pressing and installing a new pipe along a setting path by maintaining the propulsion straightness of a bit unit and a propulsion unit by short-distance propulsion by a fixing cylinder and an extended and contracted cylinder and pressing a pipe conduit excavation surface of a front housing including a double pipe structure, and the semi-shield propulsion method using the same. The front housing connected to the bit unit is formed as the double pipe structure of a front inner housing and a front outer housing. When there is an obstacle ground with a large friction factor such as cobble stone and a rock boundary line, the position of a rear housing is fixed in a pipe conduit by the fixing cylinder. The front outer housing is eccentrically moved based on the front inner housing by multiple multilayer operating jack units so that the propulsion straightness of the bit unit is maintained along the setting path. So, after the front outer housing is supported by being pressed and coming into contact with one side of the pipe conduit excavation surface, the extended and contracted cylinder installed between a rear housing and a middle housing is operated. So, the propulsion is applied to the middle housing, the front housing, and the bit unit, and the pipe conduit is formed along the setting route.

Description

Leading pipe propulsion system with improved directionality and propulsion method using

The present invention relates to a semi-shield propulsion device having a propulsion straightness and a semi-shield propulsion method using the same, so that the propulsion is made by the expansion cylinder and the fixed cylinder while pressing the ground by the front housing of the double pipe structure. In addition, the present invention relates to a semi-shield propulsion device having a propulsion straightness that can be easily press-installed in a new pipe along a set path at a rock foundation such as amber stone, soft rock, and hard rock, and a semi-shield propulsion method using the same.

In recent years, as the concentration of population and economic hubs has accelerated around large cities, and the classification of domestic administrative districts has become wider, the necessity of three-dimensional use of underground spaces for various pipelines directly related to economic life such as water and sewage, telecommunications, electricity, and city gas. This is increasing rapidly.

Most of the pipelines such as water, sewage, telecommunications, electric power, and city gas are constructed by the opening method, but excavating the pipeline by the opening method in the downtown area is not only difficult for traffic, but also causes various complaints. For this reason, a lot of regulations are generated in the construction method for opening roads.

In particular, in the construction of pipelines such as roads, busy streets, dense housing and neighboring areas, as well as roads, highways, railroads, dikes, and river crossings, many regulations have been raised in the open cut method. Pipeline construction for the propulsion method is increasing.

In general, the non-excavation propulsion method is used for the construction of various underground structures such as roads, railway tunnels, underpasses, joint tunnels, ditches, and drains, and to minimize the attachment of construction sections. It consists of oscillation work tool and earthing work tool which are equipped with earth wall and reaction force wall, and push-in and propel the propulsion pipe which is the forced pipe through propulsion device such as hydraulic cylinder. Says the excavation method.

The propulsion method used in the related art is a method of transmitting the motor rotational force of the propulsion device installed in the propulsion device using the shaft shaft. As the propulsion distance becomes longer, various resistances such as ground, new pipes, screws, etc. Since it is necessary to have a large force and eccentricity, the driving distance is limited in the end.

In addition, the conventional propulsion method has a phenomenon that the propulsion of the propulsion pipe is not smooth due to the frictional resistance generated from the ground when the newly installed pipe is pushed in by the propulsion device.

That is, in the conventional propulsion method, the propulsion force is generated by the propulsion generating part installed in the propulsion port, and the propulsion force is pushed into the new pipe by the propulsion force, and there is an unexpected amber stone in the ground due to the inhomogeneity of the ground, When the propulsion operation is performed in the obstacle ground 850 such as the rock boundary, a difference occurs in the frictional force of each portion of the cutter head positioned at the tip of the bit portion, and as shown in FIG. 11, the cutter head of the bit portion is propelled. There is a problem in that it is not possible to maintain the straightness to leave the propulsion plan set path (900) to reach another point that is shifted from the desired point.

In addition, since the propulsion straightness of the cutter head is not maintained, the following frictional force of the newly connected pipe and the oyster surface (inside of the pipeline) is continuously increased from the propeller of the tip, causing the phenomenon that the new pipe is caught in the pit surface in the ground. Because of this, it is often the case that further promotion of new constructions is impossible.

Particularly, when rock foundations such as amber stones, soft rock, and hard rock appear while pushing the soil ground, most of the protrusions of the arm are inclined rather than vertical, so the path of the cutter head is irregularly generated due to the severe frictional force difference in the membrane surface. In order to correct this, the propulsion calibration (forward and backward work) of the propeller is repeatedly performed, so that not only the entire air is extended, but also if the calibration cannot be performed, another propulsion unit is additionally installed in place. A lot of inefficient work was done.

In addition, the conventional propulsion device is provided with a direction jockey for adjusting the propulsion direction, the direction jockey is such that the direction is adjusted simply by the frictional force with the membrane surface, so that the boundary of the rock bed with a large friction coefficient difference appears In this case, the direction deviation could not be prevented by the direction jockey.

Particularly, in the soft ground, amber stone, rock boundary, etc., the direction of expansion of the direction jockey is a soft ground or earth and sand section, and thus there are various problems such as a lack of direction holding force capable of restraining the strong path departure force of the tip.

Published Patent Publication No. 10-2015-0014633 (2015.02.09) Registered Patent Publication No. 10-1784729 (2017.09.28) Patent Publication No. 10-2012-0065872 (2012.06.21) Published Patent Publication No. 10-2012-0065873 (2012.06.21)

An object of the present invention is to maintain the propulsion straightness of the propulsion part and the bit part by pressing the pipeline excavation surface of the front end housing having a double pipe structure, and by the short-range propulsion by the fixed cylinder and the expansion cylinder to be press-installed new pipe along the set path. It is to provide a semi-shield propulsion device with a propulsion straightness that can be used and a semi-shield propulsion method using the same.

The present invention consists of a double tube structure of the inner end housing and the outer end housing of the tip housing connected to the bit portion, and when there is a obstacle ground with a large coefficient of friction, such as amber and rock boundary lines, the rear end in the pipeline by the fixed cylinder In the state where the housing is fixed, the outer end housing is eccentrically moved around the inner end housing by a plurality of multi-stage operation jacks so as to maintain the propulsion straightness of the bit along the set path. Afterwards, the telescopic cylinder installed between the rear housing and the middle housing is operated so that the driving force is applied to the middle housing, the front housing and the bit to form a pipeline along the set path.

According to the present invention, the propulsion straightness of the propulsion part is maintained even in the rock foundation such as amber stone, soft rock, hard rock, etc., which is unexpectedly prevented by the double housing structure and the expansion cylinder and the fixed cylinder. There is an effect that the installation of a new pipe is made easily.

The present invention is the front end housing is composed of the outer end housing and the inner end housing, the outer end housing is centered on the inner end housing by the multi-stage operation jack to press the pipe excavation surface while the eccentric movement distance is adjusted, the position of the obstacle Regardless, there is an effect that the propulsion straightness of the propulsion unit can be maintained.

According to the present invention, the outer surface of the outer end housing is to be in surface contact or line contact with the pipe excavation surface, so that the position of the bit part and the propulsion part can be supported not only in the rock foundation but also in the soft ground, the amber stone, the rock foundation boundary line, and the like. It works.

When the excavation work from the propulsion port to the reach opening, the new pipe is connected to the propulsion unit is automatically promoted, there is no process of inserting a new pipe separately after drilling, the new pipe connected to the propulsion unit is not rotated during excavation work In addition, there is an effect that little damage or wear of the new pipe occurs.

The present invention is equipped with a deolight and a deoolite target, the current construction angle can be displayed in analog or digital on the monitor, through which the operator can recognize the angle and respond quickly, such as many effects have.

1 is an exemplary view showing the overall configuration according to the present invention
Figure 2 is an exemplary view showing the configuration of the driving unit and the bit unit according to the present invention
3 is an exemplary view showing the configuration of the front end housing according to the present invention;
4 is an exemplary view showing an operating state of the front housing according to the present invention;
5 is an exemplary view showing an operating state of the multi-stage jack unit according to the present invention.
Figure 6 is an exemplary view showing the operation of the fixed cylinder and expansion cylinder according to the present invention
Figure 7 is an exemplary view showing a propeller (Ito-pressure type) configuration according to the present invention
8 is an exemplary view showing a propeller (hydraulic type) configuration according to the present invention
Figure 9 is an exemplary view showing a propeller (two-seat) configuration according to the present invention
10 is an exemplary view showing a process of forming a pipeline according to the present invention.
11 is an exemplary view showing a conventional pipe formation process

1 is an exemplary view showing the overall configuration according to the present invention, Figure 2 is an exemplary view showing the configuration of the propulsion unit and the bit unit according to the invention, Figure 3 is an exemplary view showing the configuration of the front housing according to the present invention 4 is an exemplary view showing an operating state of the front housing according to the present invention, Figure 5 is an exemplary view showing an operating state of the multi-stage jack portion according to the present invention, Figure 6 is a fixed cylinder and the expansion cylinder of the present invention Exemplary view showing the operation, Figure 7 is an illustration showing a propeller (Ito-pressure type) configuration according to the present invention, Figure 8 is an illustration showing a propeller (hydraulic type) configuration according to the present invention, Figure 9 is the present invention Exemplary view showing a propeller (two-stage) configuration according to Figure 10, showing an exemplary view showing a process of forming a pipeline according to the present invention,

The present invention is connected to the bit unit 100, the propulsion unit 200 is installed on the rear end of the bit unit, and is connected to the rear end of the propulsion unit 100 to pressurize the propulsion unit 200 and the bit unit 100 Including a propulsion generating unit 300,

The propulsion unit 200, the rear end housing 260, the new pipe 500 is connected to the installation; The bit part 100 is connected and installed, and the outer end housing 230 is eccentrically moved around the inner end housing 220 by the plurality of multi-stage operation jacks 240 so that the outer surface 222 is the pipe excavation surface 810. A tip housing 210 in pressure contact with the front housing; A suspended housing 250 connected to the front inner housing 220 and inserted into and installed in a sliding contact with the rear cover housing 261 of the rear housing; An extension cylinder 270 connected between the stop housing 250 and the rear housing 260 to re-propulse the stop housing 250, the tip housing 210, and the bit part 100 in an excavation direction; It is fixed to the rear housing 260 is fixed cylinder 280 which is operated in the direction of the pipeline excavation surface 810;

That is, in the present invention, the tip housing 210 to which the bit part 100 is connected is formed of a double pipe structure of the tip inner housing 220 and the tip outer housing 230.

When there are obstacle grounds 850 having a large coefficient of friction, such as amber stones and rock boundary lines, the setting path 900 is fixed in the state in which the rear housing 260 is fixed in the pipeline 800 by the fixed cylinder 280. The outer tip housing 230 is eccentrically moved around the inner tip housing 220 by a plurality of multi-stage operation jacks 240 so that the propulsion straightness of the bit portion is maintained along the pressure contact with one side of the pipe excavation surface 810. After being supported, the telescopic cylinder 270 installed between the rear end housing 260 and the middle housing 250 is operated so that the driving force is applied to the middle housing 250, the front end housing 210, and the bit part 100. .

1 and 2, the rear end housing 260 is a pipe coupling housing 263 to which the new pipe 500 or the propulsion generating unit 300 is connected and installed in the direction of the pipe excavation surface 810. The fixed housing 280 is inserted and installed so that the support housing 262 to which the expansion cylinder 270 is connected and the slide housing 253 of the stop housing are in contact with the cover housing 261 is slidably inserted. Include. The pipe coupling housing 263, the support housing 262, and the cover housing 261 are integrally formed and have a cylindrical hollow tube structure.

As shown in FIGS. 1 and 2, the stop housing 250 includes a coupling housing 251 which is integrally coupled to the tip inner housing 220 of the tip housing 210, and the coupling housing 251. A connection housing 252 formed to have a step wall 255 and a support block 254 in which the rod 271 of the expansion and contraction cylinder 270 is connected and protruded therein, and integrally connected to the connection housing 252. It extends and includes a slide housing 253 is inserted into the rear end housing 260, and consists of a cylindrical hollow tube structure.

At this time, the slide housing 253 is installed so that the slide housing outer surface 253a is in contact with the cover housing inner surface 261a of the rear housing and slides, as shown in Figure 6, the slide housing outer surface 253a and the cover housing inner surface The overlap length L of the 261a is formed to be larger than the maximum extension range L1 of the expansion and contraction cylinder 270, so that the slide housing 253 of the suspension housing is moved during the propulsion movement of the suspension housing by the expansion and contraction cylinder 270. In order to prevent the cover housing 261 of the rear housing from being separated, that is, foreign matter does not flow between the slide housing 253 of the middle housing and the cover housing 261 of the rear housing.

As shown in FIGS. 1 and 2, the expansion cylinder 270 is connected to be disposed between the suspension housing 250 and the rear housing 260, based on the rear housing 260, the suspension housing 250. ) And the tip housing 210 and the bit unit 100 to generate a re-propulsion force, thereby reducing the unexpected excavation direction error of the bit portion due to soil changes.

That is, the expansion cylinder 270 is supported by one side is connected to the support housing 262 of the rear end housing, the other side is connected to the support block 254 of the intermediate housing is supported so that the contraction is released. The expansion cylinder 270 installed as described above is contracted and relaxed after the position of the rear housing 260 is fixed by the fixed cylinder 280.

As shown in FIGS. 1 and 2, the fixed cylinder 280 is installed in the support housing 262 of the rear end housing, and a contact table 281 installed at the end of the rod is disposed on the pipe excavation surface 810. It is operated to be in contact support to fix the position of the rear housing 260 in the conduit 800.

The fixed cylinder 280 is installed so that a plurality is located along the circumference of the rear housing, preferably 3 to 6, preferably 3 to 4 is maintained while maintaining a constant interval along the circumference of the rear housing.

That is, the fixed cylinder 280 resists the reaction force caused by the contraction-relaxing operation of the expansion and contraction cylinder 270 through the frictional force generated by contact with the pipe excavation surface 810, and assists the driving unit to go straight.

The expansion cylinder 270 and the fixed cylinder 280 may be used a hydraulic / pneumatic cylinder that is expanded and contracted.

The tip housing 210 is in pressure contact with the pipe excavation surface to maintain the propulsion straightness along the set path even on the rock boundary, as shown in Figures 2 and 3, the bit portion 100 at the tip The inner end housing 220 is connected to and suspended housing 250 is connected to the rear end, and the outer end housing 230 which surrounds the inner end housing 220 so that the inner end housing 220 is located therein and is spaced apart from each other. It includes a plurality of multi-stage operation jack 240 to be connected to the inner end housing 220 and the outer end housing 230 and to move the outer end housing 230 around the inner end housing 220.

That is, the front end housing 210 is composed of a double pipe structure of the inner end housing 220 and the outer end housing 230, the multi-stage operation jack is installed between the inner end housing 220 and the outer end housing 230. The outer end housing 230 is eccentrically moved around the inner end housing 220 by a 240 so that one side of the outer end housing 230 is in pressure contact with the pipe excavation surface 810.

The tip inner housing 220 is the tip is connected to the bit unit 100, the rear end is integrally coupled to the coupling housing 251 of the suspension housing, and supports the drive motor 110 of the bit unit 100 The driving support 221 protrudes inwardly.

The tip outer housing 230 is installed to be positioned between the stepped support wall 140 of the bit cutter head and the stepped wall 255 of the middle housing, and the tip 233 and the rear end 234 are disposed at the tip inner housing. It is formed to have an inclined surface or a downward curved curved surface inclined downward.

The tip outer housing 230 configured as described above has a multi-stage operation jack 240 in which the tip 233 and the rear end 234 do not deviate from the step support wall 140 of the cutter head and the step wall 255 of the stop housing, respectively. Eccentrically moved by) and one side of the outer surface is in pressure contact with the pipe excavation surface (810).

That is, when the tip outer housing 230 is propelled by the expansion cylinder 270 in a pressure contact with the pipeline excavation surface 810, the tip 233 of the tip outer housing is attached to the cutter support wall of the cutter head ( 140 is supported or the rear end 234 is supported by the stepped wall 255 of the stop housing, not only prevents the tip of the outer housing housing due to the propulsion, but also between the outer housing and the inside of the inner housing housing Inflow is prevented.

At this time, the front end 233 and the rear end 234 of the front outer housing 230 is formed to be bent in the direction of the front inner housing 220, as shown in Figure 3 (b), the corner portion is an inclined surface or It may be formed into a curved surface.

In addition, the tip inner housing 220 and the tip outer housing 230 is formed in a cylindrical pipe shape, the diameter (D1) of the outer tip housing is formed to be equal to or smaller than the connecting housing diameter (D2) of the stop housing. .

2 to 5, the multi-stage operation jack 240 is fixed to the inner end housing 220, the multi-stage jack 241 for pressing and moving the outer end housing 230, the inner end housing It is fixed to the 220 and includes an operation jack 246 for operating the multi-stage jack 241, the multi-stage jack 241 is vertically operated by the horizontal movement of the operating jack 246 to the inner tip housing (220). The tip outer housing 230 is moved to the center.

That is, the multi-stage operating jack 240 according to the present invention is configured so that the horizontal actuation force of the actuating jack 246 is converted to the vertical actuation force by the multi-stage jack 241, such a configuration of the multi-stage actuation jack 240 is the tip. It is easy to install in the limited narrow space 290 between the inner housing 220 and the outer outer housing 230, and at the same time increase the operating force of the outer outer housing 230 to the pipe excavation surface 810 It is to increase the pressing force so that the direction maintainability of the propulsion unit is improved even in the ground such as a dark boundary line.

The multi-stage jack 241 is provided with a fluid therein, but the inflow and outflow of the fluid is not made, the internal fluid is pressurized by the operation of the pressure rod 242 and the plurality of intermediate jacks 245 and The uppermost jack 244 is configured to be vertically operated.

That is, the multi-stage jack 241 is a base jack 243 having a pressing rod 242 is fixed to the inner tip housing 220, the top jack 244 is in contact with the inner surface 231 of the outer tip housing. In the state in which the inner fluid is not pressurized by the pressure rod 242, the plurality of intermediate jacks 245 including the uppermost jack 244 overlap each other to lower the height, and the pressure of the pressure rod 242. When the inner fluid is pressurized by the horizontal operation, the plurality of intermediate jacks 245 including the uppermost jack 244 are raised (the jack located at the upper side is raised from the jack located at the lower side) to increase the height.

In addition, the uppermost jack that is in contact with the inner surface 231 of the outer end housing has a rounded shape so that the end 244a has a frictional force with the inner surface 231 of the outer outer housing, as shown in FIG. Or as shown in Figure 5 (d), it may be formed so that the ball bearing 244b is provided at the end (244a).

The multi-stage jack 241 configured as described above has one to four pairs along the outer circumference of the inner end housing 220, and is provided on the front end side and the rear end side of the inner end housing 220, respectively. By the operation jack 242, the multi-stage contraction is relaxed in a direction perpendicular to the outer surface 222 of the inner tip housing to move the outer tip housing 230.

The operation jack 246 is to operate the multi-stage jack 241, is installed to correspond to the number of the multi-stage jack 241, the operating rod 247 is horizontally operated along the outer surface 232 of the inner end housing, The working rod 247 is connected to the pressure rod 242 of the multi-stage jack. That is, as shown in (a) of FIG. 5, when the operation rod 247 of the operation jack is relaxed, the pressure rod 242 of the multi-stage jack is contracted and the multi-stage jack is expanded. As shown in b), when the actuating rod 247 of the actuating jack is contracted and actuated, the actuating rod 242 of the casing is relaxed so that the actuating jack 242 is contracted.

Figure 4 shows the operating state of the outer end housing by the multi-stage operation jack, the four multi-stage jack and the operation jack is composed of one set, one set on the front / rear side of the inner end housing, that is, one to four stages Jacks 241a, 241b, 241c, 241d and actuating jacks 246a, 246b, 246c, 246d and jacks 5 through 8, 241e, 241f, 241g, 241h and actuating jacks, are positioned at the leading end of the inner housing. (246e, 246f, 246g, 246h) is shown installed at the rear end of the inner tip housing.

At this time, the first and fifth jacks 241a and 241e and the working jacks 246a and 246e, the second and sixth jacks 241b and 241f and the working jacks 246b and 246f and the third and seventh jacks 241c and 241g) and actuating jacks 246c and 246g, 4.8 multi-stage jacks 241d and 241h and actuating jacks 246d and 246h are operated simultaneously, 1,5 actuating jacks 246a and 246e and 3,7 The first operation jacks 246c and 246g, the second and sixth operation jacks 246b and 246f and the fourth and eighth operation jacks 246d and 246h are configured to be connected in parallel.

In the parallel connection, when the first and fifth operating jacks 246a and 246e are operated so that the first and fifth jacks 241a and 241e are extended, the third and seventh jacks 241c and 241g are contracted 3 and 7 times. When the operation jacks 246c and 246g are operated and the operation jacks 246b and 246f are operated so that the operation jacks 241b and 241f are expanded, the fourth and eighth jacks 241d and 241h are operated. Denotes a connection in which the fourth and eighth operating jacks 246d and 246h are operated to contract.

The multi-stage jack section 240 configured as described above is normally (in the course of the excavation work along the setting path), as shown in Fig. 4 (a), so that the center (O1, O2) of the inner end housing and the outer end housing is matched. Works,

When the obstacle ground 850, such as a rock bed boundary line, is present at the lower side of the propulsion unit, as shown in FIG. 4 (b), the number 1,5 multi-stage jacks 241a and 241e are extended, 3,7 The multi-stage jacks 241c and 241g are contracted and act to eccentrically move the tip outer housing 230 upward with respect to the tip inner housing 220 to press the pipe excavation surface 810.

At this time, the operation of the 2nd and 6th multistage jacks 241b and 241f and the 4th and 8th multistage jacks 241d and 241h which are located at both sides of the inner end housing 220 is not made, and the 2nd and 6th The uppermost jacks of the multi-stage jacks 241b and 241f and the 4th and 8th multistage jacks 241d and 241h are in contact with the inner surface 231 of the outer end housing, so that when the outer end housing 230 moves upward, The sixth multi-stage jacks 241b and 241f and the fourth and eighth multistage jacks 241d and 241h are supported by the inner surface 231 of the tip outer housing and contracted. That is, the tip outer housing 230 is eccentrically moved in a state supported by a plurality of multi-stage jack to press the pipe excavation surface 810.

In addition, as shown in (c) of FIG. 4, the multi-stage jack unit 240 is extended by the first and second multistage jacks 241a and 241e and the second and the sixth multistage jacks 241b and 241f. When the multi-stage jacks (241c, 241g) and the multi-stage jacks (241d, 241h) of the 4th and 8th stages are contracted and operated, the outer end housing 230 is moved in a diagonal direction with respect to the inner end housing 220 and the pipe line is moved. The excavating surface 810 can be pressed.

(D) of FIG. 4 is a state in which the outer end housing is eccentrically moved downward with respect to the inner end housing, and (e) a state in which the outer end housing is eccentrically moved leftward with respect to the inner end housing. f) shows a state in which the outer end housing is eccentrically moved in the right direction about the inner end housing.

As described above, the multi-stage operation jack 240 has a multi-stage jack installed so as to correspond to each other based on the inner tip housing 220, and the opposite operations (for example, the 1,5 multi-stage jacks 241a and 241e) operate the jacks 246a, 246e), the third and seventh multi-stage jacks 241c and 241g are operated to be contracted by the actuating jacks 246c and 246g), and the outer and outer housings around the tip inner housing 220 The 230 is moved so that the tip outer housing 230 is pressed against the pipe excavation surface 810 of the pipeline.

In addition, the tip housing 210 of the present invention configured as described above may change the excavation direction of the bit unit 100 by a separate operation. That is, the front end housing 210 may change the excavation direction of the bit part 100 by pressing the pipe excavation surface 810 by eccentrically moving the outer end housing by the multi-stage operation jack 240.

In addition, the front end housing 210 is further provided with a plurality of sliding discharging openings 290 penetrating through the outer end housing 230 so that lubrication may be performed during the ground pressing.

As shown in FIG. 2, the cutter unit 120 is rotatably installed in the distal end housing 220 of the propulsion unit 200, and the cutter unit 120 of FIG. A bit 130 for carrying out the excavation work is installed at the tip, and the cutter head 120 having the bit is rotated by the drive unit 110 installed in the tip inner housing 220 of the propulsion unit so as to be excavated. .

In addition, the bit portion is formed such that the diameter (D3) of the head housing is larger or equal to, preferably larger than, the connecting housing diameter (D2) of the middle housing, as shown in FIG. Since the configuration of 100 is a known technique, detailed description thereof will be omitted.

In addition, the earth and sand (excavated soil) excavated by the bit part 100 is discharged to the outside by the discharging unit 400 installed in the propulsion unit. The discharging part 400 is installed to be located in the new pipe 500 and the propulsion part 200 and the bit part 100, and is an earth pressure semi-shielding method, a hydrostatic semi-shielding method, a two-stage semi-shielding method. Known techniques that are being used to transport and excavate excavated soil may be applied.

For example, as shown in FIG. 7, the excavation additive is supplied to the bit part through the inside of the conveying screw, and the excavated soil excavated by the bit part is excavated in the chamber 140 of the cutter head. After being mixed with the additive, it may be transported in the direction of the propulsion port 910 by the batting screw 410 and processed to be transported to the ground through the topdressing pipe 420. (Ito-pressure semi-shield)

In addition, as shown in Figure 8, as shown in Figure 8, the dilution (excavation additive) is separated from the granulated material of the excavated soil in the sedimentation tank (not shown) to the bit portion 100 through the tunnel tube 430 Supplied and excavated in the chamber 140 of the cutter head and dilution (excavation additive) is mixed by the vane pipe 440 in the direction of the propulsion port 910 is located on the ground through the clay pipe 420 It may be configured to be transported and processed to a settling tank (not shown). (Hydraulic pressure semi-shield)

9, the excavation additive is supplied to the bit portion 100 through the excavation additive pipe 450, and the excavated soil and the excavating additive are mixed in the chamber 140 of the bit portion. After transported to the slurry tank 470 with air through the front end slurry pipe 460, and then to the propulsion port 910 through the rear end slurry pipe 480 is transported to the ground through the topsoil pipe 420 Can be configured to be processed.

At this time, the tunnel or excavation tube or the batter screw is made of a foldable antenna type having a water tightness, even when the expansion and contraction operation of the expansion cylinder 270 is to be configured to transfer the excavated soil toward the propulsion generating unit 300 Can be.

In addition, the excavating additive may be supplied so that the pressure of natural water pressure + 0.2kg is maintained while checking the pressure gauge so that the membrane surface is not collapsed, the excipient additive is not particularly limited in kind, for example, water and bentonite And a mixed solution consisting of a CMC curing agent may be used.

7 to 9, reference numeral 491 is a hydraulic unit, 492 is a central control panel, 493 is a sander (DESANDER), 494 is a filter press, 495 is a pump, 497 is an adjustment tank, 498 is a surplus tank, 499 Is the feed water supply unit, 481 is the reservoir tank.

The propulsion generating unit 300 is installed in the propulsion opening 910, which is the start point of the pipeline, propelling and pushing the propulsion unit 200 to be excavated in the direction of the reach opening (인) which is the end point of the pipeline. By rotating the drive 100, a known propulsion generating part used in the semi-shield method is used, so a detailed description thereof will be omitted.

In addition, the present invention further includes a straight line sensing unit 700 for sensing the straightness of the driving unit (200).

The straight line detection unit 700 is located in the front end housing of the delight 710 and the propulsion unit 200, which is installed on one side of the bottom concrete 911 of the propulsion port 910 located in the propulsion generating unit 300. It may be configured to include a fixed deodorant target 720.

That is, the present invention may be configured to check the straightness of the propulsion unit through a monitor (not shown) by the laser irradiated from the deolite 710 to the deolite target 720. In this case, the laser is installed in the propulsion unit 200 is irradiated into the new pipe 500 so as not to interfere with the excavation unit 400 for transporting the excavated soil.

The new pipe 500 is connected to be installed between the propulsion generating unit 300 and the rear end housing 260 of the propulsion unit is transferred to the propulsion unit 200 propulsion force generated in the propulsion generating unit 300 to the pipeline 800 Press-fit feed is installed in The new pipe 500 is to be connected to a plurality of new pipes in a line by the male and female screw coupling, and the male and female coupling to the propulsion generating unit 300 and the rear housing 260, or male and female screw coupling.

According to the present invention configured as described above, the excavation direction of the propulsion unit 200 is promoted by the obstacle ground 850 having a large friction coefficient difference, such as a amber stone or rock boundary, during the excavation operation from the propulsion to the reach opening direction. When it is disengaged from (900), through the fixing of the position by the fixed cylinder 280, re-propulsion at a short distance by the expansion cylinder 270, and ensuring the straight forward propulsion by the pipe excavation surface pressure of the outer end housing, The excavation direction of the propulsion unit 200 is corrected to correspond to the set path 900.

That is, the present invention includes a vertical excavation step of forming the propulsion port and the reaching port at the start point of the buried line and the end point of the buried line;

An installation step of installing a semi-shield propulsion device according to the present invention in the propulsion port;

The excavation step of excavating the new pipe into the pipeline while the ground is excavated by the driving force of the propulsion generating unit installed in the propulsion unit and the driving of the bit unit installed at the tip of the propulsion unit in the direction of the reach opening from the propulsion port. ,

The excavation step includes an excavation direction correction step in which the excavation directions of the bit part and the propelling part are corrected when the excavation directions A of the bit part and the propelling part deviate from the set path 900.

The excavation direction correction step,

A reverse step in which the propulsion unit 200 is moved by a propulsion generating unit 300 in the direction of the propulsion generation unit 300 by a predetermined distance such that the bit unit 100 of the propulsion unit 200 is positioned on the setting path 900;

After the backward step, the position fixing step of fixing the position of the rear housing 260 of the propulsion unit in the pipeline 800 by the fixed cylinder 280;

After the position fixing step, the tip outer housing 230 of the front housing by the multi-stage operation jack 240 presses the pipe excavation surface 810 while the bit section 100 and the front housing 210 by the expansion cylinder 270. And a repropulsion step in which the stop housing 250 is propelled and the bit unit 100 is driven to excavate.

At this time, the excavation direction correction step may further include a repetitive propulsion step in which the position fixing step and the re-propulsion step is repeatedly performed a plurality of times.

That is, in the repeating propulsion step, the fixed cylinder is contracted after the re-propulsion step, and the fixing of the rear housing is released, and the propulsion and expansion cylinder of the propulsion generating unit is contracted and the rear housing and the new pipe are moved in the direction of the stopping housing. step;

After the following step, the position fixing step of fixing the position of the rear end housing 260 of the propulsion unit in the pipeline 800 by the fixed cylinder 280;

After the position fixing step, the tip outer housing 230 of the front housing by the multi-stage operation jack 240 presses the pipe excavation surface 810 while the bit section 100 and the front housing 210 by the expansion cylinder 270. And a re-propulsion step in which the stop housing 250 is pushed and the bit unit 100 is driven to excavate;

The tracking step, the position fixing step, the re-promotion step may be repeated a plurality of times; may further include a.

10 is a view illustrating a process of correcting an excavation direction according to the present invention. When an obstacle ground 850 such as a rock ground boundary exists on an upper side of a conduit, as shown in FIG. 100 and the propulsion unit 200 are moved to be positioned on the setting path, and as shown in (b) of FIG. 10, the position of the rear housing 270 of the propulsion unit in the pipeline is fixed by the fixed cylinder 280. 10, the front outer housing 230 is eccentrically moved by the multi-stage operation jack 240 so that the outer end housing 230 is in pressure contact with the pipe excavation surface of the lower side of the conduit. do.

In this way, when the tip outer housing is in pressure contact with the pipe excavation surface of the lower side of the pipeline, the bit portion 100 and the propulsion portion 200 is lowered in the downward direction due to the lifting support force (F, obstacle ground) As a result of the prevention of the occurrence of the loss), as shown in (d) of FIG. 10, when the expansion unit 270 is operated and the bit unit 100 is driven, the bit unit 100 and the pushing unit 200 are Excavation proceeds along the set path 900 by penetrating the obstacle ground 850 without departing the path.

When the excavation direction A coincides with the setting path 900 by the excavation direction correction step as described above, as illustrated in FIG. 4A, the external outer housing 230 is formed by the multi-stage operation jack 240. ) And the outer end housing 230 is moved to coincide with the center (O1, O2) of the inner end housing 220, the contraction operation of the expansion cylinder 270 and the fixed cylinder 280, and the propulsion generating unit 300 By the operation of the, the rear end housing 260 in the conduit is released and at the same time, the rear end housing 260 is in close contact with the stop housing 250, the bit generating section and the propulsion unit by the propulsion generation direction Propelled by the excavation work is made.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

100: bit section 110: drive motor
120: cutter head 130 bits
140: chamber 200: propulsion unit
(210): Tip housing (220): Tip internal housing
221: driving support 222: outer surface
(230): Outer tip housing (231): Inside
(232): outer surface (240): multi-stage operation jack
241: multistage jack 242: pressurized rod
243: base jack 244: top jack
(244a): End (244b): Ball bearing
(245): middle jack 246: working jack
(247): working rod 250: suspended housing
(251): combined housing (252): connected housing
253: Slide housing 253a: Slide housing outer surface
(254): support block (255): stepped wall
(260): Rear housing (261): Cover housing
(261a): inner cover housing (262): support housing
(263): pipe housing (270): expansion cylinder
(280): fixed cylinder (281): contact table
(290): Lubricant discharge outlet (300): Propulsion generator
(400): top cover 410: top screw
(420): clay pipe (430): fang tube
(440): Vany tube (450): Excavation additive tube
(500): New Hall (700): Straight Line Detection Department
(710): Deolite (720): Deolite Target
(800): pipeline (810): pipeline excavation surface
(850): Disability Ground (860): Ground
(900): setting path (910): propulsion port
(911): floor concrete (920): reach

Claims (11)

Bit part 100, a propulsion part 200 connected to the rear end of the bit part, and a propulsion generating part connected to the rear end of the propulsion part 100 to pressurize the propulsion part 200 and the bit part 100. Including (300),
The propulsion unit 200,
New rear pipe 500 is connected to the rear housing 260 is installed; The bit part 100 is connected and installed, and the outer end housing 230 is eccentrically moved around the inner end housing 220 by the plurality of multi-stage operation jacks 240 so that the outer surface 222 is the pipe excavation surface 810. A tip housing 210 in pressure contact with the front housing; A suspended housing 250 connected to the front inner housing 220 and inserted into and installed in a sliding contact with the cover housing 261 of the rear housing; An extension cylinder 270 connected between the stop housing 250 and the rear housing 260 to re-propulse the stop housing 250, the tip housing 210, and the bit part 100 in an excavation direction; And a fixed cylinder 280 fixed to the rear housing 260 and operated in the direction of the pipe excavation surface 810.
The tip housing 210 has a tip inner housing 220 in which the bit part 100 is connected to the tip and a stop housing 250 is connected to the rear end, and the tip inner housing 220 is located inside the tip housing. The outer outer housing 230, which is spaced apart from the housing 220, is installed and connected to the inner inner housing 220 and the outer outer housing 230, and the outer outer housing 230 is installed around the inner inner housing 220. It includes a plurality of multi-stage operation jack 240 to move,
The multi-stage operation jack 240 is fixed to the inner end housing 220, the multi-stage jack 241 for pressing and moving the outer end housing 230, and fixed to the inner end housing 220, the multi-stage jack ( Including an operation jack 246 for operating 241,
Semi-shield with propulsion straightness, characterized in that the multi-stage jack 241 is vertically operated by the horizontal movement of the operating jack 246 to move the outer end housing 230 around the inner end housing 220. Propulsion system.
delete The method according to claim 1;
The tip inner housing 220, the tip is connected to the bit unit 100, the rear end is integrally coupled to the coupling housing 251 of the suspension housing, and supports the drive motor 110 of the bit unit 100 Semi-shielded propulsion device with a propulsion straightness, characterized in that the drive support 221 is formed to protrude inward.
The method according to claim 1;
The tip outer housing 230 is provided to be positioned between the stepped support wall 140 of the bit cutter head and the stepped wall 255 of the middle housing, and the tip 233 and the rear end 234 are provided to the tip inner housing. Semi-shielded propulsion device with a propulsion straightness, characterized in that it is formed to have a slope inclined downward or curved downward.
The method according to claim 1;
The tip outer housing 230 is installed to be positioned between the stepped support wall 140 of the bit cutter head and the stepped wall 255 of the middle housing, and the tip 233 and the rear end 234 are provided at the tip inner housing ( It is formed to be bent in the direction 220, the semi-shield propulsion device having a propulsion straightness, characterized in that the corner portion is formed in the inclined surface or curved surface.
delete The method according to claim 1;
The multi-stage jack 241 is formed in a round shape such that the tip 244a of the top jack that is in contact with the inner surface 231 of the outer end housing is minimized in friction with the inner surface 231 of the outer end housing, or Semi-shielded propulsion device having a propulsion straightness, characterized in that formed in the end (244a) is provided with a ball bearing (244b).
The method according to claim 1;
The semi-shield propulsion device having a propulsion straightness further includes a straight line sensing unit 700 for detecting the propulsion straightness,
The straight line detection unit 700, the delight 710 is installed on one side of the bottom concrete 911 of the propulsion port 910 is located in the propulsion generating unit 300, and is located in the tip inner housing of the propulsion unit 200. Semi-shielded propulsion device with a propulsion straightness, characterized in that it comprises a deorolite target 720 is fixed to be installed.
A vertical excavation step in which a propulsion hole and an arrival hole are respectively formed at the start point of the buried line and the end point of the buried line;
An installation step of installing a semi-shield propulsion device according to any one of claims 1, 3, 4, 5, 7, 8 in the propulsion port;
The excavation step of excavating the new pipe into the pipeline while the ground is excavated by the driving force of the propulsion generating unit installed in the propulsion unit and the driving of the bit unit installed at the tip of the propulsion unit in the direction of the reach opening from the propulsion port. ,
The excavation step includes an excavation direction correcting step in which the excavation directions of the bit part and the propelling part are corrected when the excavation directions A of the bit part and the propelling part deviate from the set path 900.
The excavation direction correction step,
A reverse step in which the propulsion unit 200 is moved by a propulsion generating unit 300 in the direction of the propulsion generation unit 300 by a predetermined distance such that the bit unit 100 of the propulsion unit 200 is positioned on the setting path 900;
After the backward step, the position fixing step of fixing the position of the rear end housing 260 of the propulsion unit in the pipeline 800 by the fixed cylinder 280;
After the position fixing step, the tip outer housing 230 of the front housing by the multi-stage operation jack 240 presses the pipe excavation surface 810 while the bit section 100 and the front housing 210 by the expansion cylinder 270. And a re-propulsion step in which the stop housing 250 is propelled and the bit unit 100 is driven to excavate. The semi-shield propulsion method using the semi-shield propulsion device having a propulsion straightness, characterized in that it comprises a.
The method of claim 9;
Excavation direction correction step, the position fixing step and the re-propulsion step is repeated repeatedly carried out a plurality of times;
The repeat promotion step,
After the re-propulsion step, the fixed cylinder is contracted and the release of the rear housing is released and the propulsion and expansion cylinder of the propulsion generating unit is contracted and the rear housing and the new pipe are moved in the direction of the stopping housing;
After the following step, the position fixing step of fixing the position of the rear housing 260 of the propulsion unit in the pipeline 800 by the fixed cylinder 280;
After the position fixing step, the tip outer housing 230 of the front housing by the multi-stage operation jack 240 presses the pipe excavation surface 810 while the bit section 100 and the front housing 210 by the expansion cylinder 270. And a re-propulsion step in which the stop housing 250 is pushed and the bit unit 100 is driven to excavate;
The semi-shield propulsion method using a semi-shield propulsion device with a propulsion straightness, characterized in that it further comprises; repeating step, the position fixing step, the re-promotion step is repeated a plurality of times.
delete

Images