KR102114156B1 - Old pipe reconstruction semi-shield apparatus and old pipe exchange method - Google Patents

Abstract

The present invention relates to an old pipe reconstruction semi-shield propelling apparatus and an old pipe reconstruction method using the same, which are capable of burying a new pipe without excavating the entire replacement section of an old pipe. The old pipe reconstruction semi-shield propelling apparatus comprises a thrust generation unit and a propeller connected and installed to the thrust generation unit to press-insert and install a new pipe while crushing an old pipe to be reconstructed. The propeller includes: a cutter head unit arranged at the front end and having a plurality of head inlets installed with an outer cutting carbide at both side ends thereof; a driving motor unit installed in the propeller to allow an outer gear provided in a cutter head shaft of the cutter head unit to be engaged, and rotatably driving the cutter head unit; and a bar cutter unit installed between the cutter head unit and the driving motor unit to allow the cutter head shaft to penetrate the inside thereof, supported by a bearing in the propeller to engage an inner gear with the driving motor unit, and having a plurality of cutter inlets installed with an inner cutting carbide at both side ends thereof to communicate with the head inlets. The cutter head unit and the bar cutter unit are rotatably driven in opposite directions to each other by the driving motor unit, and an old pipe to be reconstructed is crushed by the cutter head unit. A new pipe connected to the propeller is press-inserted and installed while a rebar of the old pipe to be reconstructed is crushed by the outer cutting carbide installed at both side ends of the head inlets and the inner cutting carbide installed at both side ends of the cutter inlets.

Description

Old pipe reconstruction semi-shield apparatus and old pipe exchange method using old pipe reconstruction semi-shield apparatus and old pipe exchange method

The present invention relates to a semi-shield propulsion device for remodeling an old tube and a construction method for remodeling an old tube using the same, and an old tube remodeling semi-shield propulsion device capable of press-fitting and installing a new pipe while crushing an old tube buried without excavation work and an old pipe rebuilding construction It's about the construction method.

In general, most of the pipes used in real life such as water, sewer pipes, wiring pipes, electric wire pipes, gas pipes, etc. are buried and installed in the ground, and the buried pipes are environments of fluid or soil flowing along the pipes over time. Depending on the inside or outside of the pipe, corrosion may occur or be damaged.

In particular, in the case of water pipes, when the pipes are corroded or damaged, a problem occurs in which drinking water is contaminated, and in the case of sewer pipes, a problem occurs in which the surrounding soil is contaminated by waste water and waste water. If damaged, the expensive communication cable is damaged due to the inflow of groundwater, which causes communication loss or fire.

Therefore, old or damaged pipes must be replaced with new ones after a certain period of time.

Replacing the old pipe that has been used in the past is the same as the process of reclaiming the pipe. After digging the indicator to the depth at which the pipe is buried over the entire length of the replacement section, the old pipe is lifted, and a new pipe to be replaced is replaced. The method of laying and reincarnation is being used.

However, the replacement construction, as described above, requires that the entire section be dug up and reopened, which not only causes inconvenience to human traffic during the construction period, but also congestion of traffic, environmental pollution caused by construction delays, noise, and asphalt waste. There is a problem in which a number of problems such as tremendous budget requirements are compounded.

In addition, the replacement construction as described above has a problem in that the construction cost and the construction period are increased when a river or a ground building is located where an old pipe is buried, such as having to precede a water-blocking construction or bypass a pipeline.

Due to the above-mentioned problems, recently, the surface of the old pipe is not opened, but the propulsion pipe is pushed outwards to the outside of the old pipe, and then the old pipe inside is crushed and removed, and then a new pipe is installed inside the propulsion pipe. The old tube replacement method has been developed and used for construction.

However, the method of replacing the non-excavated old tube as described above has a problem in that it is impossible to take out the broken old tube generated in the process of crushing the old tube to the outside, and it is possible to replace only the tube of synthetic resin material and the rebar is wired. For concrete pipe, there were various problems such as replacement work could not be made.

Registered Patent Publication No. 10-1264651 (2013.05.09) Publication Patent Publication No. 10-2009-0104332 (2009.10.06) Registered Patent Publication No. 10-1177741 (2012.08.22) Registered Patent Publication No. 10-1284626 (2013.07.04)

An object of the present invention is to provide a construction method for remodeling an old tube using a semi-shield propulsion device for remodeling an old tube that can buried a new tube without excavating the entire replacement section of the old tube.

An object of the present invention is to provide a construction method for remodeling an old tube using a semi-shield propulsion device for remodeling an old tube that can be replaced with an actual tube without excavation with respect to an old tube made of reinforced concrete.

The present invention includes a thrust generator and a thruster that is connected to the thrust generator and press-fits and installs a new pipe while crushing the old pipe to be remodeled.

The propeller is disposed at the front end, the cutter head portion is provided with a plurality of head inlet is provided with an outer cutting carbide on both sides; A drive motor unit installed in the propeller so that the outer gear provided on the cutter head shaft of the cutter head unit engages to rotate the cutter head unit; The cutter head shaft is installed between the cutter head portion and the drive motor portion to penetrate the inside, and the bearing is supported in the propeller so that the inner gear meshes with the drive motor portion, and a plurality of inner cutting carbides are installed at both ends to communicate with the head inlet. A bar cutter portion provided with a cutter inlet; including, the cutter head portion and the bar cutter portion are rotationally driven in opposite directions to each other by the driving motor portion, and the crushing of the old tube to be reconstructed is made by the carter head portion, Reinforcing bars of the old tube to be reconstructed are crushed by the outer cutting carbide installed at both ends and the inner cutting carbide installed at both ends of the cutter inlet, so that a new pipe connected to the propeller is press-fitted.

In the present invention, the crushing of the old tube is made by the cutter head, and the exposed rebar is crushed by the crushing of the old tube by the cross rotational driving of the cutter head and the bar cutter part. There is an effect that replacement work is easily performed.

In the present invention, the rebar crushed material and the old tube crushed material are automatically discharged and discharged to the ground through the vane pipe installed inside the propeller together with the excavated soil and the water, so that the replacement work time can be automated and the replacement work time is shortened. It works.

According to the present invention, the installation of the bypass pipe does not affect the flow of sewage / wastewater even when the old pipe is replaced, and there is an effect that a sufficient working time is secured.

In the present invention, the excavation and replacement work is performed by propulsion by a propulsion device, rather than excavating the old section of the old pipe and the new buried pipe, so the excavation area and the occupied area of the road are minimized, reducing the cause of traffic jams and traffic accidents. In addition, there are many effects, such as reducing the construction cost.

1 is an exemplary view showing the overall installation configuration according to the present invention
Figure 2 is an exemplary view showing the configuration of a propulsion device according to the present invention
Figure 3 is an exemplary view showing the configuration of the propeller according to the present invention
4 is an enlarged exemplary view of part C of FIG. 3;
Figure 5 is an exemplary view showing the configuration of the cutter head according to the present invention
Figure 6 is an exemplary view showing the configuration of the bar cutter unit according to the present invention
7 is an exemplary view showing a rebar cutting process according to the present invention
8 is an exemplary view showing a casing installation step according to the present invention
9 is an exemplary view showing the configuration of the expansion clamp and the soil bucket according to the present invention
Figure 10 is an exemplary view showing the aging process of the old tube to be reconstructed according to the present invention
11 is another exemplary view showing the process of crushing an old tube to be reconstructed according to the present invention.
12 is an exemplary block diagram showing an old construction method for reconstruction of an old tube according to the present invention

1 is an exemplary view showing the overall installation configuration according to the present invention, FIG. 2 is an exemplary view showing the configuration of a propulsion device according to the present invention, and FIG. 3 is an exemplary view showing the configuration of a propeller according to the present invention, FIG. 4 is an enlarged illustrative view of a portion C of FIG. 3, FIG. 5 is an exemplary view showing a configuration of a cutter head according to the present invention, FIG. 6 is an exemplary view showing a configuration of a bar cutter according to the present invention, and FIG. It shows an exemplary view showing the cutting process of the rebar according to the invention,

The old tube remodeling semi-shield propulsion device 700 according to the present invention is connected to the propulsion force generating part 200 and the propulsion force generating part 200, and the propeller 100 for press-fitting and installing a new pipe while crushing the old tube to be reconstructed Including,

The old tube 800, which is a target for reconstruction, in which reinforcing bars are reinforced by pressurized propulsion of the propulsion force generating unit 200 and rotational driving of the propeller 100, is shredded and discharged to the ground through the vane tube 130 installed inside the propeller, and the propeller ( The new pipe 800` installed in connection with the rear stage propulsion unit 120 of 100) is configured to be press-fitted and installed.

In other words, the old tube remodeling semi-shield propulsion device 700 according to the present invention, as shown in Figure 2, the propeller 100 is disposed at the front end, a plurality of head inlets are provided with outer cutting carbide at both ends A provided cutter head part 300;

A drive motor unit 400 installed in the propeller 100 to rotate the cutter head unit 300 so that the outer gear provided on the cutter head shaft is engaged;

It is installed between the cutter head part 300 and the drive motor part 400 so that the cutter head shaft penetrates inside, and the bearing is supported in the propeller 100 so that the inner gear meshes with the drive motor part 400, and communicates with the head inlet. Including a bar cutter portion 500 is provided with a plurality of cutter inlet openings are installed on both sides so as to include;

The cutter head part 300 and the bar cutter part 500 are rotationally driven in opposite directions by the driving motor part 400, and the crushing of the old tube 800, which is a target for reconstruction, is made by the carter head part 300, As the rebar 801 of the old tube 800 to be reconstructed is shredded by the outer cutting carbide installed at both ends of the head inlet and the inner cutting carbide installed at both ends of the cutter inlet, a new pipe 800 connected to the propeller 100 (800` ) Is to be press-fitted.

The cutter head part 300, as shown in Figures 2 to 8, is installed on the tip of the propeller, the cutter head 310 having a plurality of head inlets, and the front of the cutter head 310 It includes a plurality of cutters 320 that are installed to protrude, and a cutter head shaft 330, the front end of which is spline or gear-coupled to the cutter head 310, and the rear end is engaged with the driving motor unit 400.

The cutter head 310, as shown in Figure 5, a plurality of head inlet 311 is installed through the plurality of cutters 320 so as not to interfere with the cutter head shaft 330 in the center of the rear ) Is an axial coupling portion 312 is formed.

The cutter 320 is for crushing the old tube 800 for excavation and reconstruction, and its shape and structure are not specified, but a cone type cutter bit is preferably installed. In one example, the cutter may be composed of two outer cone cutters 321 and two inner cone cutters 322.

The head inlet 311 is to allow the excavated soil, water, debris and rebar debris generated by the propulsion of the propeller to be introduced and discharged to the ground, and a plurality of through holes are formed along the outer circumferential surface of the cutter head 310, , Each head inlet 311 is provided with outer cutting carbides 313 at both ends, that is, at the front end and the rear end, respectively, based on the rotational direction A of the cutter head.

The outer cutting carbide 313 is for cutting the reinforcing bar or the like included in the old tube 800 to be remodeled to a predetermined size, and a known cutting carbide for cutting the reinforcing bar 801 is installed.

The shaft coupling portion 312 is to receive the driving force of the drive motor unit 400 by the cutter head shaft 330 so that the cutter head 310 is rotationally driven, and is formed in a groove type having a predetermined depth. There are splines or gears 312a that are coupled to the cutter head shaft on the inner surface of the groove.

For example, the head inlet 311 is provided with the outer cutting carbide 313 is installed to surround the inner cone cutter 322, and also to be positioned between the two outer cone cutters 321, the outer circumference of the cutter head 310 It can be formed accordingly.

The cutter head shaft 330, as shown in Fig. 5 (b), is coupled to the shaft coupling portion 312 of the cutter head and a central coupling shaft 332 provided with a plurality of outlets 334, An outer gear 333 formed integrally with the central coupling shaft 332 and engaged with the driving gear part 400 includes an enlarged main shaft 331 formed along an outer circumferential surface. That is, the cutter head shaft 330 is provided so that the central coupling shaft 332 is located at the front end and the enlarged diameter main shaft 331 is located at the rear end.

The central coupling shaft 332 and the enlarged diameter main shaft 331 may be formed integrally as one block, or may be configured to be integrally coupled by mutual interference fitting.

As shown in FIG. 4, the driving motor unit 400 is a hydraulic motor 410 fixedly installed in the front end of the propeller 100 and a driving gear integrally connected to an axis of the hydraulic motor 410 and driven to rotate. 420 forms one set, 2 to 4 sets, that is, 2 to 4 drive motors 400 are installed, and preferably 3 drive motors 400 are installed to have an isometric angle. .

At this time, the driving gear 420 is installed so that one side is engaged with the outer gear 333 of the cutter head portion, and the other side is engaged with the inner gear 531 of the bar cutter portion. That is, the inner gear 531 of the bar cutter part 500, the plurality of driving gears 420 and the outer gear 333 of the cutter head part are connected and installed in a planetary gear train type consisting of a ring gear, a planetary gear, and a sun gear. have.

6, the bar cutter part 500 is formed integrally with a porous cone 510 having a chamber 511 therein, and a tip end of the porous cone 510, and has a head inlet 311. A bar cutter 520 having a plurality of cutter inlets 521 communicating therewith and a shaft through hole 522 through which the cutter head shaft 330 penetrates, and a driving gear of the driving motor part integrally formed at a rear end of the porous cone 510 It includes a cone connecting rod 530 formed with an inner gear 531 meshed with (420).

At this time, the porous cone 510 and the cone connecting rod 530 may be formed integrally, or the rear end of the porous cone 510 may be coupled to the cone connecting rod 530 by interference fitting to be integrally driven to rotate. have.

The porous cone 510 is made of a cone type whose outer diameter is enlarged as it goes toward the cutter head part 300, and a plurality of holes 510a are formed to allow the inflow of water into the chamber 511 along the outer circumference. Is formed.

The chamber 511 is a space formed inside the porous cone 510, the cutter head shaft 330 is disposed, the head inlet 311 of the cutter head portion, the cutter inlet 521 of the bar cutter portion, and the cutter It is in communication with the outlet 334 provided on the head shaft.

That is, in the present invention, during the pressurization and rotation of the propeller, the excavated soil, water and debris, etc. into the chamber 511 of the porous cone through the head inlet 311 of the cutter head and the cutter inlet 521 of the bar cutter. It is introduced, and the excavated soil, water, and debris of the old pipe are discharged to the ground through the outlet 334 of the cutter head shaft.

The bar cutter 520 is formed with a shaft through-hole 522 through which the cutter head shaft is inserted, and a plurality of cutter inlets 521 are formed along the circumference around the shaft through-hole 522. It is.

The cutter inlet 521 is provided with a function of allowing excavated soil, water, and debris of the old tube to flow in and out, and a function of crushing hard materials such as reinforcing bars finely by interaction with the head inlet 311.

That is, a plurality of the cutter inlet 521 is formed around the shaft through-hole 522 so as to be in linear communication with the head inlet 311, and each cutter inlet 521 has both ends, that is, a bar cutter part. An inner cutting carbide 523 is installed at the front / rear end of the cutter inlet 521 based on the rotational direction B of 500.

At this time, the inner cutting carbide 523 is cut to a predetermined size, such as the rebar 801 included in the old tube 800 by interaction with the outer cutting carbide 313 installed at the head inlet.

That is, when the driving motor unit 400 is operated, the cutter head unit 300 and the bar cutter unit 500 are rotationally driven in opposite directions, and accordingly, the head inlet 311 of the cutter head unit and the cutter inlet unit of the bar cutter unit ( Since 521) are rotated in opposite directions, the head inlet and the cutter are formed by the intersection of the cutting carbide installed at the head inlet and the cutting carbide installed at the cutter inlet by the rotational crossing between the head inlet and the cutter inlet. The reinforcing bars of the old pipe introduced into the inlet are crushed.

The new pipe 800` is intended to replace the old pipe 800, which is a target for reconstruction, and is installed so as to be positioned between the propulsive force generator 200 and the propeller 100, so as to replace the propulsive force generated by the propulsive force generator 200. While transferring to the propeller 100, the old pipe to be reconstructed is crushed and installed into the excavation pipe formed by crushing.

The new pipe (800`) is to be connected to a number of new pipes in series by male and female screw coupling, is to be coupled to the male and female, or male and female coupling to the propulsion generating unit 200 and the propeller (100). .

The present invention configured as described above is the pressurized propulsion of the thrust generating unit, the crushing of the old tube is made by the cutter head portion of the thruster, and the cutter head portion and the bar cutter portion that are rotationally driven in opposite directions by the drive motor portion, that is, cut After the head inlet of the cutter head portion in which the cemented carbide is installed and the inlet of the bar cutter portion are crossed, the reinforcing bars reinforced to the old tube are crushed, and the debris and rebar debris of the old tube are introduced into the chamber 511 of the porous cone, and then the cutter with water It is transferred to the vanity pipe 130 installed in the propeller through the outlet of the head portion, discharged to the ground, and the new pipe is automatically press-fitted by the propulsion of the propeller.

In addition, the old tube remodeling semi-shield propulsion device 700 according to the present invention, the support 710 for supporting the propeller 100, the extension and contraction of the cutter head part 300, 720 and the direction of the propeller It may be configured to further include a direction maintaining portion 730 for adjustment.

That is, the old tube remodeling semi-shield propulsion device 700 according to the present invention, as shown in Figures 1 to 3, the propeller 100, the propeller 100, the front end propeller 110 and the rear end propeller 120 Done,

A telescopic section 720 connected to the front end propulsion unit 110 and the rear end propulsion unit 120 of the propeller to propel the front end propulsion unit 110 in the excavation direction based on the rear end propulsion unit 120,

It is installed on the outside of the rear stage propulsion unit 120 and is supported by contact with the inner surface of the excavation pipe 710 to support the propeller 100,

It may be configured to include a direction maintaining portion 730 that is connected to the outer surface of the tip propulsion unit 110 and controls the traveling direction of the propeller 100.

As described above, when the propeller 100 is configured to be divided into the front end propulsion unit 110 and the rear end propulsion unit 120, the cutter head part 300, the driving motor part 400, and the bar cutter part 500 are the front end propellers. It is connected to 110, and the new pipe 800` is connected to the thrust generator 200 and the thruster 120 of the thruster.

The expansion / contraction part 720 and the support part 710 may be a hydraulic / pneumatic cylinder or a hydraulic jack, which is expanded and contracted, and preferably a hydraulic cylinder is installed.

The support part 710 is operated so that the contact support 711 installed at the end of the rod is in contact with the inner wall 951 of the excavation pipeline to fix the position of the rear end propulsion unit 120 in the excavation pipeline 950.

The expansion and contraction part 720 is a cutter head part 300, a driving motor part 400, and a bar cutter part 500 based on the rear end propulsion part 120 fixedly supported in the excavation pipe 950 by the expansion operation of the rod. ) To propel the tip propulsion unit 110 of the connected propeller.

That is, the expansion and contraction portion 720 is a function of reducing the unexpected crushing direction error of the cutter head portion due to the change in soil or the partial strength of the aged pipe buried by the re-propelling pressure of the tip propulsion unit 110. It is provided.

In addition, the front end propulsion unit 110 and the rear end propulsion unit 120, the propulsion operation of the front end propulsion unit 110 by the expansion and contraction unit 720, the front end propulsion unit 110 and the rear end propulsion unit 120 It is provided with a predetermined sliding overlap length (L) so as not to be separated and connected. That is, when the propulsion operation of the tip propulsion unit 110 by the expansion and contraction unit 720, the tip propulsion unit 110 is slid around the rear end propulsion unit 120 and the front end propulsion unit 110 and the rear end propulsion unit ( 120) It is designed to prevent foreign substances from entering.

The direction maintaining portion 730 is an operating cylinder 731 installed in the installation hole 111 formed on the outer surface so as to be located outside the tip propulsion unit, and a wedge-type operation block integrally installed at the rod end of the operation cylinder 731 ( 732) and the blade 733 protruding out of the installation hole 111 so as to be in contact with the inner surface 951 of the excavation pipe by contact with the crushing type operation block 732.

The direction maintaining portion 730 is preferably installed at one or more preferably 3 to 4 on the outer surface of the tip propulsion unit to maintain a predetermined interval.

The direction maintaining portion 730 configured as described above is a linear movement of the crushing type operation block 732 by the operation cylinder 731, and the hinge pin 734 by contact of the crushing type operation block 732 and the blade 733. The blade 733 is rotated around, and the end of the blade 733 contacts the inner surface 951 of the excavation pipe, so that the object of reconstruction of the propeller 100 is adjusted in the direction of propulsion and crushing of the old tube.

In addition, the propeller 100 is provided with a water supply pipe 140 for supplying water, a barn tube 130 for transporting rebar debris, excavated soil, water, deteriorated tube debris, etc., and a vane pump 150. .

Hereinafter, the construction method of the old tube reconstruction according to the present invention will be described. In the construction method, the leading and trailing ends are set based on the flow direction of sewage / wastewater flowing through the old pipe to be reconstructed.

8 is an exemplary view showing a casing installation step according to the present invention, FIG. 9 is an exemplary view showing an expansion clamp and tosa bucket configuration according to the present invention, and FIG. 10 is an example showing an old tube shredding process according to the present invention FIG. 11 is another exemplary view showing a process of crushing an old tube to be reconstructed according to the present invention, and FIG. 12 is a block diagram showing an old tube reconstruction method according to the present invention.

The present invention is a casing installation step of removing the manhole (910) connected to the rear end shaft (802) of the old tube to be reconstructed around the old tube (800) to be reconstructed and the hollow casing (900) is installed;

Propelling device installation step in which the old tube reconstruction propulsion device 700 is installed in the casing 900;

It is intended to include; a pipeline installation step in which the new pipeline 800` is press-fit-installed while the old pipeline 800 with rebar reinforced by the remodeling semi-shield propulsion device 700 is crushed and discharged to the ground.

In addition, the present invention, prior to the casing installation step, the rear end tube 810 located on the rear end side of the old tube to be remodeled by the bypass pipe part 920 to the front end tube 820 located at the front end of the old tube 800 to be remodeled. Bypass installation step of connecting; may further include.

The bypass installation step is a step for securing workability so that the replacement of the old pipe by the propulsion device can be performed without stopping the flow of sewage / wastewater.

A rear end pipe closing step in which a suction port stopper 921 is installed in the shaft of the rear end aged pipe 810 located on the rear end side of the old pipe to be rebuilt;

A closing step of the front end pipe in which the outlet stopper 922 is installed in the shaft of the front end old tube 820 located at the front end of the old pipe 800 to be rebuilt;

Including the connection step of the bypass control unit 925 is installed on the ground to be connected by the suction stopper 921 and the suction pipe 923, and connected to the discharge stopper 922 and the discharge pipe 924;

By the operation of the bypass control unit 925, the sewage / sewage in the rear end pipe 810 is sucked in the stopper 921, the suction pipe 923, the bypass control unit 925, the discharge pipe 924, the discharge stopper 922 ) To be discharged and transported into the aging tube 820.

That is, the bypass pipe part 920 includes a suction port stopper 921, a discharge port stopper 922, a suction pipe 923, a discharge pipe 924, and a bypass control unit 925.

The bypass control unit 925 is equipped with a suction pump and a control panel (not shown) inside, and the suction pump is driven by the control panel, so that the sewage / wastewater in the rear end pipe is sucked through the suction pipe, and the front end through the discharge pipe. It is designed to be transported and discharged into the pipeline. Since the driving control of the suction pump by the control panel is a known technique, detailed description thereof will be omitted.

The casing installation step, as shown in Figure 8,

A casing press-fitting step in which the casing 900 is press-fitted so that the manhole 910 to which the rear end shaft 802 of the old pipe to be reconstructed is connected is located in the hollow hole;

A top manhole lifting step in which the top manhole 911 of the manhole located in the casing 900 is lifted and removed;

A bucket installation step in which the soil bucket 930 is inserted into the lower manhole 913 to be seated in the lower manhole 913 of the manhole;

A vertical manhole lifting step in which the vertical manhole 912 of the manhole located in the casing 900 is lifted;

After the vertical manhole lifting step, the tosa bucket lifting step in which the sediment bucket 930 containing the sediment is lifted;

And a lower manhole lifting step in which the lower manhole 913 of the manhole located in the casing is lifted.

The manhole 910 is composed of an upper manhole 911, one or more vertical manholes 912, and a lower manhole 913. Since the structure of the manhole is a conventional structure, a detailed description thereof will be omitted.

The upper manhole 911, the vertical manhole 912, and the lower manhole 913 can be directly lifted by a crane, but the vertical manhole 912 and the lower manhole 913 buried in the ground are extended clamps 940. It is preferred that the inner surface be lifted in a compressed state.

The expansion clamp 940, as shown in Figure 9 (a), the main body frame 941 is connected to the crane, and one end is connected to the main body frame 941 by the hinge shaft 942 is installed and other A plurality of support arms 944 provided with a non-slip blade 943 at the side ends, and a plurality of one end rotatably connected to the body frame 941 and the other end rotatably connected to the support arm 944 It may be configured to include a hydraulic cylinder (945).

That is, the expansion clamp 940 is driven by the hydraulic cylinder 945 by the operation of the hinge shaft 942, the support arm 944 is rotationally driven so that the vertical manhole inner surface or the lower manhole inner surface of the support arm anti-slip blade ( 943) is to be fixed. At this time, the anti-slip blade 943 may be formed in a serrated type.

The support arm 944 and the hydraulic cylinder 945 is preferably two or more, preferably three or more are installed uniformly around the body frame (941).

The sediment bucket 930 is when the vertical manhole 912 is lifted, the sediment flowing into the manhole, that is, the sediment located between the vertical manhole 912 and the casing 900 is the lower manhole 913 and the vertical manhole 912. In order not to be stacked therein, as shown in FIG. 8, a plurality of soil buckets 930 are inserted into and installed in the lower manhole 913 in accordance with the number of vertical manholes 912.

At this time, the soil bucket 930 is formed so that the circumference of the upper opening 931 is close to the inner surface 913a of the lower manhole, as shown in FIGS. 8 and 9, so as to be easily stacked and separated. It is formed in a tapered shape.

In addition, the casing installation step, the installation of the casing 900, the casing 900, the entrance 811 is further installed to prevent the inflow of groundwater through the rear end tube 810.

In the installation of the propulsion device, a floor concrete 960 is formed on the bottom of the casing 900, a reaction plate 970 is fixedly installed on the floor concrete 960, a floor concrete 960 and a reaction plate 970 ), The propulsion force generating unit 200 is fixedly installed to be connected and fixed, and the remodeling semi-shield propulsion device 700 is installed so that the propeller 100 having the rebar crushing function is connected to the propulsion force generating unit 200.

The thrust generating unit 200 is to press and propel the thruster 100, and since a known thrust generating unit used in a semi-shield thrusting device is used, detailed description thereof will be omitted.

In addition, the floor concrete is provided with a thrust force generating unit 200 and a cone unit 740 for controlling the thruster 100 and a de-light 750 for checking the straightness of the thruster, and the de-light in the thruster. The target 751 is installed.

As shown in FIG. 11, the pipe installation step is performed by pressurized propulsion of the propulsion generating unit and rotational driving of the propeller from the casing 900 connected to the rear end of the old pipe to be remodeled to the front end manhole 910a connected to the front end of the old pipe to be remodeled. As the old pipe 800 to be rebuilt is crushed, the new pipe 800` is automatically press-fitted and installed.

In addition, the present invention further includes a mortar filling step in which the mortar 830 is filled into the old tube 800 to be reconstructed before the pipeline installation step, as shown in (b) and (c) of FIG. 11. The mortar filling step is to maintain the gripping force of the propeller so that the shredding of the old tube 800, which is the target of reconstruction, can be smoothly performed.

In other words, in general, replacement pipes are installed in a location where the old pipes are located, but if there is a difference in the gradient of the old pipes to be renovated or the path of the new pipes is different from the old pipes to be renovated, it is buried underground. Only a part of the old pipe to be reconstructed is crushed by the propulsion device, and when only a part of the old pipe to be reconstructed is crushed, an empty space is generated in the progress direction and one side of the propeller, thereby reducing the propulsion efficiency of the propeller. Occurs. In particular, during the press-fit installation of the new pipe by the propeller, the phenomenon of collapse of the remaining old pipe occurs, and a phenomenon occurs in which the propulsion direction of the propeller and the new pipe being press-fitted are damaged.

Accordingly, the present invention is to further include a mortar filling step, by filling the inside of the old tube with mortar, when the crushing of the old tube is prevented, the collapse of the remaining old tube is prevented, the grounding efficiency of the propeller is improved, and the overall propulsion efficiency is increased. It is supposed to be.

The mortar filling step as described above, even if the diameter of the new tube is smaller than the old tube can be expected to have an excellent effect.

The mortar filling step includes a stopper installation step in which stoppers are installed at both ends of the old conduit to be reconstructed; It may include a mortar charging step in which the mortar is charged into the old conduit that is the target of reconstruction with the stopper installed.

The present invention is not limited to the specific preferred embodiments described above, and various modifications can be carried out by anyone who has ordinary knowledge in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, such changes are within the scope of the claims.

(100): Propeller (110): Tip propeller
(111): Installation hole (120): Rear stage propeller
(130): Barney Building (140): Isu Supply Pipe
(150): vane pump (200): thrust generating part
(300): cutter head portion 310: cutter head
(311): head inlet (312): shaft coupling
(312a): spline or gear (313): outer cutting carbide
(320): Cutter (321): Outer cone cutter
(322): inner cone cutter (330): cutter head shaft
(331): Expansion main shaft (332): Central coupling shaft
(333): outer gear (334): outlet
(400): drive motor unit (410): hydraulic motor
(420): Drive gear (500): Bar cutter
510: porous cone 511: chamber
(520): Bar cutter (521): Cutter inlet
(522): shaft through hole (523): medial cutting carbide
(530): cone connecting rod (531): inner gear
(700): Semi-shield propulsion device (710): Support
(711): contact support (720): telescopic section
(730): direction maintenance unit (731): operating cylinder
(732): Crusher-type operation block (733): Blade
(740): Control unit (750): Deolite
(800): Remodeled old age building (800`): New building
(801): Rebar (802): Rear shaft
(810): rear end of the tube (811): Entrus
(820): Fleet of old age (900): Casing
(910): Manhole (911): Top manhole
(912): Vertical manhole (912a): Inside the bottom manhole
(913): Bottom manhole (913a): Inside the bottom manhole
(920): Bypass tube (921): Suction stopper
(922): Outlet stopper (923): Suction pipe
(924): Discharge pipe (925): Bypass control unit
(930): Tosa Bucket (940): Extension clamp
(941): Body frame (942): hinge axis
(943): Anti-slip blade (944): Support arm
(945): Hydraulic cylinder (950): Excavation pipeline
(951): Inside of the excavation pipe (960): Floor concrete
(970): reaction board

Claims (12)

A cutter head part 300 which is connected to the propeller 100 and is provided with a plurality of head inlets with outer cut carbides installed at both ends;
A drive motor unit 400 installed in the propeller 100 to rotate the cutter head unit 300 so that the outer gear provided on the cutter head shaft is engaged;
It is installed between the cutter head part 300 and the drive motor part 400 so that the cutter head shaft penetrates inside, and the bearing is supported in the propeller 100 so that the inner gear meshes with the drive motor part 400, and communicates with the head inlet. Including a bar cutter portion 500 is provided with a plurality of cutter inlet openings are installed on both sides so as to include;
The cutter head unit 300 and the bar cutter unit 500 are rotationally driven in opposite directions by the driving motor unit 400, and the crushing of the old tube 800, which is an object of reconstruction, is performed by the cutter head unit 300, As the rebar 801 of the old tube 800 to be reconstructed is shredded by the outer cutting carbide installed at both ends of the head inlet and the inner cutting carbide installed at both ends of the cutter inlet, a new pipe 800 connected to the propeller 100 (800` ) Semi-shield propulsion device for remodeling an old tube, characterized in that the press-fit is installed.
The method according to claim 1;
Cutter head portion 300,
A cutter head 310 having a plurality of head inlets 311, a plurality of cutters 320 installed to protrude on the front surface of the cutter head 310, and a tip or spline gear-coupled to the cutter head 310, , The rear end includes a cutter head shaft 330 meshed with the driving motor unit 400, but each head inlet 311 has an outer cutting carbide 313 installed on both sides, respectively. Propulsion device.
The method according to claim 1;
Bar cutter unit 500, a porous cone 510 having a chamber 511 therein, a plurality of cutter inlet 521 formed integrally with the tip of the porous cone 510 and communicating with the head inlet 311 ) And a bar cutter 520 having an axial through hole 522 through which the cutter head shaft 330 passes, and an inner gear formed integrally with the rear end of the porous cone 510 and meshing with the driving gear 420 of the driving motor unit. (531) comprises a cone connecting rod (530) is formed, the cutter inlet 521 is an old cutting tube semi-shield propulsion device characterized in that the inner cutting carbide 523 is installed on both sides.
The method according to claim 3;
The bar cutter 520 is formed with a shaft through-hole 522 through which the cutter head shaft is inserted, and a plurality of cutter inlets 521 are formed along the circumference around the shaft through-hole 522. A semi-shield propulsion device for remodeling an old tube.
In claim 1
The old shield reconstruction semi-shield propulsion device 700,
The propeller 100, the propeller 100 is composed of a front-end propeller 110 and a rear-end propeller 120,
A telescopic section 720 connected to the front end propulsion unit 110 and the rear end propulsion unit 120 of the propeller to propel the front end propulsion unit 110 in the excavation direction based on the rear end propulsion unit 120,
It is installed on the outside of the rear stage propulsion unit 120 and is supported by contact with the inner surface of the excavation pipe 710 to support the propeller 100,
It is installed on the outer surface of the tip propulsion unit (110), the old tube remodeling semi-shield propulsion device, characterized in that it comprises a direction maintaining portion (730) for controlling the direction of propulsion (100).
A casing installation step in which a manhole to which a rear end shaft of the old tube to be reconstructed is removed, and a hollow casing is installed around the old tube to be reconstructed; A propulsion device installation step in which a propulsion device is installed in the casing; Includes; the pipeline installation step of the new pipeline is press-fitted installation, while the old pipeline with the reinforcement reinforced by the propulsion device is crushed and discharged to the ground.
The casing installation step,
A casing press-fitting step in which the casing is press-fitted so that the manhole to which the rear end shaft of the old pipe to be reconstructed is connected is located in the hollow hole;
An upper manhole lifting step in which the upper manhole of the manhole located in the casing is lifted and removed;
A bucket installation step in which a soil bucket is inserted into the bottom manhole to be seated in the bottom manhole of the manhole;
A vertical manhole lifting step in which the vertical manhole of the manhole located in the casing is lifted;
After the vertical manhole lifting step, the tosa bucket lifting step in which the sediment bucket containing the sediment is lifted;
Old man tube rehabilitation construction method using a semi-shield propulsion device, characterized in that it comprises; a lower manhole lifting step of lifting the lower manhole of the manhole located in the casing.
The method according to claim 6;
Before the casing installation step, a bypass installation step of connecting the rear end tube located at the rear end side of the old tube to be reconstructed to the front end tube located at the front end of the old tube to be reconstructed by the bypass pipe part; Construction method for reconstruction of old tube using semi-shield propulsion device.
The method according to claim 7;
The bypass installation step,
A closing step of a rear end pipe in which a suction port stopper is installed in a shaft of the rear end pipe located on the rear end side of the old end pipe to be reconstructed;
A closing step of the leading end pipe in which the outlet plug is installed in the shaft of the leading end tube located at the leading end of the old tube to be rebuilt;
Including the connecting step of being connected by the suction stopper and the suction pipe, the bypass control unit is installed on the ground to be connected by the discharge stopper and the discharge pipe;
The sewage / wastewater in the rear end pipe is transferred and discharged into the front end pipe through the suction port stopper, the suction pipe, the bypass control unit, the discharge pipe, and the outlet stopper by the operation of the bypass control unit. Construction method of remodeling old tube using
delete The method according to claim 6;
The vertical manhole and the lower manhole are lifted with the inner surface pressed and fixed by an expansion clamp.
The expansion clamp includes a main frame connected to a crane, a plurality of support arms having one side end connected to the main frame by a hinge shaft and provided with a non-slip blade at the other end, and one side end rotatable on the main frame A construction method of remodeling an old tube using a semi-shield remodeling device for remodeling an old tube, characterized in that it comprises a plurality of hydraulic cylinders that are connected and the other end is rotatably connected to the support arm.
The method according to claim 6;
Before the pipeline installation step, the mortar filling step in which the mortar is filled into the old tube to be reconstructed; further comprising the old tube remodeling construction method using a semi-shield propulsion device.
The method according to claim 6;
The propulsion device includes a thrust generator and a thruster that is connected to the thrust generator and press-fits and installs a new pipe while crushing the old pipe to be remodeled.
The propeller,
A cutter head part disposed at the front end and having a plurality of head inlets provided with outer cut carbides at both ends;
A drive motor unit installed in the propeller so that the outer gear provided on the cutter head shaft of the cutter head unit engages to rotate the cutter head unit;
The cutter head shaft is installed between the cutter head portion and the drive motor portion to penetrate the inside, and the bearing is supported in the propeller so that the inner gear meshes with the drive motor portion, and a plurality of inner cutting carbides are installed at both ends to communicate with the head inlet. Bar cutter portion provided with a cutter inlet; including,
The cutter head part and the bar cutter part are rotationally driven in opposite directions by the driving motor part, and the crushing of the old tube to be reconstructed is made by the carter head part, and the outer cutting carbide and the both ends of the cutter inlet are installed at both ends of the head inlet. An old tube reconstruction construction method using a semi-shielded propulsion device for remodeling an old tube, characterized in that a new pipe connected to the propeller is press-fitted while the rebar of the old tube to be reconstructed is crushed by an inner cutting carbide installed in.

Images