TWI404856B - Promote the temporary use of the pipe - Google Patents

Abstract

The present invention provides a temporary pipe for jacking construction method whose outer diameter can be different than that of an embedded pipe and lowering construction cost. The temporary pipe (10) for jacking construction method includes a temporary pipe main body (20), a diameter expanding temporary pipe (30) and a diameter expanding sleeve pipe (40); in a status that the temporary pipe main body (20) is installed in the inner side of the diameter expanding temporary pipe (30), at least one end section of the diameter expanding temporary pipe (30) and the temporary pipe main body (20) is installed with the diameter expanding sleeve pipe (40), so that sleeve openings (42a, 42b, 42c, 42d) are aligned with connection openings (23a, 23b, 23c, 23d) of a main body board 22a, sleeve pipe members (43a, 43b, 43c, 43d) are connected to pipe members (16a, 16b, 16c, 16d) provided inside the temporary pipe main body (20), and the diameter expanding sleeve pipe (40) is fastened with the temporary pipe main body (20) and the diameter expanding temporary pipe (30) through screw bolt sections (45), so the diameter expanding sleeve pipe (40), the temporary pipe main body (20) and the diameter expanding temporary pipe (30) are integrated.

Description

Temporary tube for propulsion method

The present invention relates to a temporary pipe for a propulsion method, and more particularly to a method for propelling a method, wherein the propulsion method is provided with a temporary pipe connected to a front end having a pipe before the excavation portion, and a excavation portion is discharged through a drain pipe. After excavating the sand, after digging into the shaft, the buried pipe is connected to the last temporary pipe to further push out the front pipe, and the temporary pipe and the buried pipe are replaced, thereby laying the buried pipe underground.

The propulsion method is, for example, a method in which a laying pipe, a sewer pipe, a gas pipe, a water pipe, and the like are installed in the underground as a buried pipe, that is, a main jack is provided in the starting shaft, and the excavating portion is provided at the front end, for example. The shield tunneling machine is used as the front duct. One side is connected to the buried pipe one by one after the previous duct, and one is pushed out to the starting shaft, so that the buried pipe can be placed underground in the connected state.

Further, in the propulsion method, it is necessary to feed muddy water or the like into the excavation portion at the tip end in a pressurized state, and to stabilize the tunnel excavation into the section surface, and to discharge the excavated sand and muddy water to the departure shaft side at the same time. A pipe body such as a mud pipe and a mud pipe for circulating mud water or the like is disposed inside the buried pipe connected to the front pipe by the rear, and the pipe diameter of the pipe is, for example, 250 to 700 mm. In the case of the small-caliber propulsion method, it takes a lot of work time to connect a plurality of pipes in each of the buried pipes that are successively connected.

Therefore, a pipe body in which a discharge pipe or the like is preliminarily mounted has been developed, and it is configured to be connected in an abutting state only in the axial direction, so that a plurality of pipe bodies can be joined at the same time to have the same outer diameter as that of the buried pipe. The method of propelling a plurality of temporary tubes (for example, refer to Patent Document 1). In the propulsion method using such a temporary pipe, one side is connected to the front pipe having the excavation part at the front end, and the temporary pipe is successively connected, and the temporary shaft is pushed out by the starting shaft using the jack and the front pipe at the same time. After reaching the shaft, the buried pipe is connected to the last temporary pipe and further pushed out, and the temporary pipe and the buried pipe are replaced, thereby laying the buried pipe underground.

[Patent Document 1] Japanese Patent Laid-Open No. 61-137996

In the propulsion method using the temporary pipe, in addition to the mud pipe and the mud pipe, other pipe bodies such as a drain pipe and an injection pipe are installed in order to make these pipes It is possible to connect the temporary tube only in the axial direction, and to make the connection portions at both ends close to each other, and to securely maintain the sealing state to communicate with each other, and it is necessary to mount it with high precision. Therefore, the manufacturing cost of the temporary tube is high. The price is quite expensive. On the other hand, although the temporary pipe is a member that needs to be replaced by the buried pipe and is recovered from the underground, it is necessary to have the same outer diameter as the buried pipe, and therefore it cannot be transferred to the propulsion project of the buried pipe having different outer diameters. Therefore, the temporary pipes must be separately manufactured according to the respective propulsion projects of the buried pipes having different outer diameters, so that the construction cost is increased.

The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a temporary use pipe for a high-efficiency propulsion project that can be transferred to a propulsion project having a different outer diameter and can be used to reduce construction costs. .

The present invention achieves the above object by providing a temporary pipe for a propulsion method having the following features: a propulsion method for propelling a temporary pipe system for use in a propulsion method, and the propulsion method is carried out by a starting shaft using a jack to push out a front end having a digging portion The front duct and the temporary pipe following the front duct, and the sand excavated by the excavation part is discharged through a drain pipe disposed in the temporary pipe, and the pipe is dug into the shaft after the tunnel is drilled into the shaft. Connected to the last temporary pipe and further pushed out, and replaces the temporary pipe and the buried pipe, thereby placing the buried pipe in the underground; and comprising: a temporary pipe body, which is respectively closed by the body plate The two ends are open, and a plurality of tubes are disposed in the inside of the cylindrical tube in parallel with the axial direction thereof, and the opening edges of the two ends of the tube are respectively joined to the openings and formed in the connection opening of the body plate. The expanded diameter temporary pipe is provided with a main body mounting portion having an inner diameter equal to the outer diameter of the cylindrical pipe, and has a main body mounting portion having an inner diameter other than the outer diameter of the outer diameter of the embedded pipe. The outer peripheral portion of the outer tubular body is provided with a diameter-enlarged portion plate and has the same length as the temporary pipe body; and the expanded-diameter ferrule has the same outer diameter as the outer diameter of the expanded diameter temporary pipe, The end surface is formed by a flat hollow cylinder having one of the same planar shapes as the cross-sectional shape of the embedded pipe, and the plurality of socket plates are formed at positions corresponding to the connection openings of the temporary pipe body. a sleeve opening, and a sleeve body is installed between the socket openings of the sleeve plates on both sides, and a plurality of bolt locking portions that can open and close to the circumferential surface are arranged at intervals in the circumferential direction; An inner diameter of the temporary pipe body and the end surface of the temporary pipe body in which the temporary pipe body is disposed, wherein the outer diameter of the temporary pipe body is disposed, and the outer diameter of the outer diameter of the temporary pipe body is provided, and the expansion pipe is provided. The connection opening of the main body plate is uniform, and the pipe body inside the temporary pipe body is connected to the socket body, and the expansion pipe is bolted to the temporary pipe body via the bolt locking portion. before Temporary radially enlarged tube, whereby the ferrule diameter, the temporary tube and the radially enlarged body temporarily joined tube integration.

Further, in the temporary pipe for the propulsion method according to the present invention, it is preferable that the center portion of the body portion plate and the socket plate are formed with a measurement opening formed so as to overlap the axial direction.

Further, in the temporary pipe for a propulsion method according to the present invention, it is preferable that the expanded diameter temporary pipe is disposed inside the outer cylindrical body and includes an inner cylindrical body having an inner diameter equal to an outer diameter of the cylindrical tubular portion. In the double structure of the concentric shape, the inner side of the inner cylindrical body is used as the main body attaching portion, and both ends of the hollow portion between the inner cylindrical body and the outer cylindrical body are closed by the enlarged diameter plate.

Further, in the temporary pipe for a propulsion method according to the present invention, it is preferable that a peripheral portion of the cylindrical pipe of the temporary pipe body is formed with a groove for cable wiring recessed inwardly over the entire length of the axial direction. In the above-mentioned expanded diameter temporary pipe, a notch through-groove for cable wiring is formed at a position corresponding to the groove for the cable wiring over the entire length of the axial direction, and the cable is formed in the expanded diameter ferrule The groove for wiring and the notch through groove for the cable wire are overlapped with the axial direction to form a notch recess for cable wiring.

According to the temporary pipe for the propulsion method according to the present invention, it can be transferred to the propulsion project of the buried pipe having different outer diameters, and the high-efficiency propulsion project for reducing the construction cost can be implemented.

The temporary pipe 10 for propulsion method according to a preferred embodiment of the present invention is as shown in Figs. 1(a) to (d), for example, by using a muddy water propulsion method of a muddy shield tunneling machine as a propulsion method. For example, a laying pipe for wiring having an outer diameter of about 500 mm is used as the buried pipe 12 in the underground. That is, the temporary use pipe 10 for the propulsion method of the present embodiment is employed in the following propulsion method: it is installed next to the muddy type shield tunneling machine 11, and is separated from the muddy shield type tunneling machine 11 by the departure shaft 14 After being pushed out to the arrival shaft, the underground pipe 12 is placed in the ground in advance, and the buried pipe 12 is connected to the last temporary pipe 10 to be further pushed out and replaced with the buried pipe 12, whereby the buried pipe 12 is placed at underground.

Here, the muddy shield tunneling machine 11 can use a conventional shield tunneling machine for utilizing the muddy water pushing method, which is a shield body having a digging blade, a partition wall, a muddy water chamber, and the like as a digging portion 13 at the front end. 11a and a plurality of subsequent tubes 11b provided with various pipings, control devices, and the like, which are connected to the shield body 11a at the rear. In the present embodiment, the temporary pipe 10 for the propulsion method is joined in a state in which the partition member 11c is placed at the end of the subsequent pipe 11b at the rearmost portion of the muddy shield tunneling machine 11, and is set to start. The main support jack 15 of the shaft 14 (refer to FIG. 7) is driven by the telescopic drive, and the excavation portion 13 of the shield tunneling machine 11 cuts the tunnel into the work section surface, and the temporary use pipe 10 for the propulsion method is successively connected to the rear. One side is pushed out to the arrival shaft at the same time as the shield tunneling machine 11.

However, the temporary use pipe 10 for the propulsion method of the present embodiment uses the temporary pipe 10 in the following propulsion method: the main support jack 15 is used as the mud-water shield tunneling machine with the front end of the pipe having the excavation portion 13 11 and the temporary pipe 10 connected to the shield tunneling machine 11 from the rear side are pushed out from the departure shaft 14, and the sand excavated by the excavation portion 13 is discharged through the drain pipe 16a disposed in the temporary pipe 10 After digging into the shaft, the buried pipe 12 is connected from the starting shaft 14 to the last temporary pipe 10 and further pushed out, and the buried pipe 12 and the buried pipe 12 are replaced, and the buried pipe 12 is placed underground. As shown in FIGS. 2 to 5, the temporary pipe 10 for the propulsion method is composed of the temporary pipe main body 20, the expanded diameter temporary pipe 30, and the expanded diameter ferrule 40.

Further, as shown in FIGS. 3(a) and 3(b), the temporary pipe main body 20 is closed by the main body plates 22a and 22b, respectively, and is closed at both ends of the tubular pipe 21, and is inside the cylindrical pipe 21 and the shaft. The plurality of tubes 16a, 16b, 16c, and 16d are disposed in parallel with the direction X, and the opening edges of the both ends of the tubes 16a, 16b, 16c, and 16d are respectively joined to the body plate 22a formed on both sides of the opening. The connection openings 23a, 23b, 23c, and 23d of 22b are formed.

Further, as shown in FIGS. 4(a) and 4(b), the expanded diameter temporary pipe 30 is provided on the inner side of the outer cylindrical body 32 having the outer diameter similar to the outer diameter of the embedded pipe 12, and is provided with the cylindrical pipe 21. The main body mounting portion 31a having the outer diameter of the outer diameter is attached to the outer peripheral portion of the outer cylindrical body 32, and the diameter-enlarged portion plates 33a and 33b are attached to the same length as the temporary pipe main body 20. In the present embodiment, the expanded diameter temporary pipe 30 has a double structure in which the inner cylindrical body 31 having the same inner diameter as the outer diameter of the tubular pipe 21 is disposed concentrically inside the outer cylindrical body 32. The inner side of the inner cylindrical body 31 serves as the main body mounting portion 31a, and both ends of the hollow portion between the inner cylindrical body 31 and the outer cylindrical body 32 are closed by the enlarged diameter portion plates 33a, 33b.

Further, as shown in Figs. 5(a) and 5(b), the expanded ferrule 40 has the same outer diameter as the outer diameter of the expanded diameter temporary pipe 30, and both end faces have a cross sectional shape with the buried pipe 12. One of the same planar shapes corresponds to the flat hollow cylinder closed by the socket plates 41a, 41b, and the respective socket plates 41a, 41b correspond to the connection openings 23a, 23b, 23c, 23d of the temporary pipe body 20. The plurality of socket openings 42a, 42b, 42c, 42d are formed at positions, and the socket bodies 43a, 43b, 43c are mounted between the socket openings 41a, 42b, 42c, 42d of the sleeve plates 41a, 41b on both sides. 43d, and a plurality of bolt locking portions 45 that can be opened and closed to the circumferential surface are provided at intervals in the circumferential direction.

As shown in Fig. 2 (a) and (b), the temporary pipe main body 20 in which the temporary pipe main body 20 is disposed is attached to the inside of the main body mounting portion 31a of the inner cylindrical body 31 of the expanded diameter temporary pipe 30, and An expansion ferrule 40 is provided at an end surface of one of the expanded diameter temporary tubes 30 (front side), and the connection openings 23a, 23b of the one (front) body portion plate 22a are connected by the socket openings 42a, 42b, 42c, 42d, 23c, 23d are identical, the sleeve bodies 43a, 43b, 43c, 43d are connected to the tubes 16a, 16b, 16c, 16d inside the temporary tube body 20, and the expansion sleeve 40 is bolted via the bolt locking portion 45. The temporary pipe body 20 and the expanded diameter temporary pipe 30 are joined to each other to join the expanded ferrule 40, the temporary pipe main body 20, and the expanded diameter temporary pipe 30 to be integrated.

Further, in the present embodiment, the measurement opening 17 is formed in the central portion of the main body plates 22a and 22b and the socket plates 41a and 41b so as to overlap the axial direction X.

Further, in the present embodiment, the outer peripheral portion of the tubular tube 21 of the temporary tube main body 20 is formed with a groove 24 for cable wiring recessed inwardly over the entire axial direction X, and the diameter is expanded. The temporary pipe 30 is formed with a cable wiring notch through groove 34 at a position corresponding to the cable wiring groove 24 over the entire length of the axial direction, and is formed in the axial direction X and the cable in the expanded diameter ferrule 40. The wire wiring recess 24 and the cable wiring notch through groove 34 are overlapped, and a cable wiring notch recess 44 is formed.

In the present embodiment, the cylindrical tube 21 constituting the temporary tube main body 20 is, for example, a cylindrical steel tube having an outer diameter of about 540 mm and a length of about 1000 mm, as shown in Figs. 3(a) and (b). According to this configuration, the main body plates 22a and 22b formed of, for example, a circular steel plate are joined by welding, and the both end openings are closed by the main body plates 22a and 22b. In the central portion of each of the main body portions 22a and 22b, a circular shape having a diameter of about 150 mm for measuring the laser light is used, for example, by the departure shaft 14 so as to be overlapped in the axial direction X of the temporary pipe main body 20. The opening 17 for measurement. In addition, the main body portion plates 22a and 22b are disposed around the measurement opening 17, and are respectively formed with, for example, a drain pipe connection opening 23a, a mud pipe connection opening 23b, an injection pipe connection opening 23c, and a drain pipe connection. Opening 23d. Further, an elastic spacer made of, for example, a rubber-made high-repulsive elastic member is attached to the peripheral edge portion of the opening of the connection openings 23a, 23b, 23c, and 23d so that the main body of the temporary pipe body 20 is joined by bolting. When the plates 22a and 22b are in close contact with the ferrules 41a and 41b of the ferrule ferrule 40, the tubes 16a, 16b, 16c, and 16d disposed in the temporary tube body 20 can be firmly held in a state in which the sealing property is firmly maintained. The socket bodies 43a, 43b, 43c, and 43d disposed in the expansion ferrule 40 are in communication.

The pipe bodies 16a, 16b, 16c, and 16d disposed inside the tubular pipe 21 are, for example, a sludge pipe 16a composed of a cylindrical steel pipe, a mud pipe 16b, an injection pipe 16c, and a drain pipe 16d, which are parallel to The longitudinal direction (axial direction) of the tubular tube 21 is linearly arranged along the axial direction X of the temporary tube main body 20, and the peripheral edge portions of the openings at both ends are welded and joined to the connection of the main body portions 22a and 22b. The opening peripheral portions of the openings 23a, 23b, 23c, and 23d are firmly supported and fixed.

Further, in the present embodiment, the outer peripheral portion of the tubular tube 21 of the temporary pipe main body 20 is located at the upper end when the temporary pipe 10 is connected to the muddy shield type boring machine 11 from the rear side and is installed. In addition, a portion of the main body plate 22a, 22b is provided with a groove having a substantially rectangular cross-sectional shape extending over the entire axial direction X of the tubular tube 21 and recessed inwardly. twenty four. In the cable routing groove 24, various wirings such as a cable connecting the starting shaft and the shield tunneling machine 11 can be disposed without passing through the inside of the temporary pipe main body 20. Further, in the bottom surface portion of the groove 24 for cable wiring, the female screw nut member 25a is fixed at a suitable position at a predetermined interval in the longitudinal direction, and the fixing bolt member 25b is locked to the female screw nut member. At 25a, the groove cover 26 covering the opening surface on the outer side of the groove 24 for cable wiring can be attached and detachably.

Further, in the present embodiment, at a position corresponding to the bolt locking portion 45 of the expanded diameter ferrule 40 at the peripheral portion of the body portion plates 22a, 22b, for example, at four intervals at equal angular intervals in the circumferential direction. A bolt hole 27 is formed, and a bolt case 28 having a substantially trapezoidal cross-sectional shape is provided on the inner side of the main body plates 22a and 22b in the region including the bolt holes 27 so as to open to the outer peripheral surface of the cylindrical tube 21. Further, a female screw nut member 29a is fixed to a central portion of the bottom plate of the bolt case 28, and when the fixing bolt member 29b is locked to the female screw nut member 29a, the cover can be attached and detachably provided in advance to be described later. The box cover 36 on the outer opening surface of the bolt case 38 of the temporary pipe 30 is expanded (see Fig. 2(a)).

As shown in Figs. 4(a) and 4(b), the outer tubular body 32 constituting the expanded diameter temporary pipe 30 is, for example, a cylindrical shape in which the outer diameter is 680 mm and the length is 1000 mm. The steel pipe is configured to have the same outer cross-sectional shape as the shield tunneling machine 11 and the buried pipe 12. Further, the inner cylindrical body 31 is formed of, for example, a cylindrical steel pipe having a diameter of about 540 mm and a length of about 1000 mm, and the inner side has a accommodating space in which the temporary pipe main body 20 can be fitted. (body mounting portion 31a). The inner cylindrical body 31 and the outer cylindrical body 32 are disposed inside the outer cylindrical body 32 so that the inner cylindrical body 31 is concentrically arranged, and the both ends of the hollow portion between the inner cylindrical body 31 and the outer cylindrical body 32 are partially The enlarged diameter portion plates 33a and 33b of the annular shape cut into a cross section are closed to form a double-diameter expanded diameter temporary pipe 30.

The enlarged diameter portion plates 33a and 33b are formed, for example, by a ring-shaped steel plate having a portion having a width of 70 mm in the radial direction, and the inner and outer peripheral portions thereof are welded and joined to the inner cylindrical body 31 and the outer cylindrical body, respectively. An enlarged diameter temporary pipe 30 that is firmly integrated with the inner cylindrical body 31 and the outer cylindrical body 32 is formed at a peripheral edge portion of the front end 32. At positions corresponding to the bolt locking portions 45 of the enlarged diameter ferrules 40 of the enlarged diameter portion plates 33a and 33b, for example, bolt holes 37 are formed through the equiangular interval at intervals of four in the circumferential direction, and the bolts are included therein. In the inner side of the enlarged diameter portion plates 33a and 33b in the region of the hole 37, the bolt case 38 having a substantially trapezoidal cross-sectional shape is provided so that the expanded diameter temporary tube 30 penetrates the radial direction to the inner cylindrical body 31 and the outer cylindrical body 32. Both sides speak. When the temporary pipe main body 20 is attached to the inside of the expanded diameter temporary pipe 30, the bolt case 38 on the back side of the expanded diameter plate 33a, 33b and the bolt case 28 on the back side of the main body plates 22a and 22b are respectively in the radial direction. The inner side bolt locking portion 18 (see Fig. (a)) is formed continuously. The bolt case 38 of the expanded diameter temporary pipe 30 of the inner side bolt locking portion 18 is formed to be covered by the cover 36, and the fixing bolt member 29b is provided in the bolt case 28 of the temporary pipe body 20. The female screw nut member 29a can be appropriately opened and closed.

Further, in the present embodiment, the diameter-increasing temporary pipe 30 is disposed at the upper end portion when the temporary pipe 10 is connected to the muddy-type shield tunneling machine 11 from the rear and is installed at the upper end portion. The direction is overlapped with the groove for the cable wiring of the temporary pipe main body 20, and the notch through groove 34 for cable wiring is provided. The notch through-groove 34 for the cable wiring is extended over the entire axial direction X of the expanded diameter temporary pipe 30 including the portions of the expanded diameter plates 33a and 33b, and the expanded diameter temporary pipe 30 is penetrated by the diameter. The direction is formed, for example, by a section cut to a width of about 100 mm. In the cable-wiring through-groove 34, the cable-use groove 24 of the temporary pipe main body 20 is continuous in the radial direction to form a wiring recess 19 which is integrated into these (see FIGS. 2(a) and 2(b). )). In the wiring recessed portion 19, similarly to the cable wiring recess 24, various wirings such as a cable that connects the starting shaft and the shield tunneling machine 11 can be disposed without passing through the inside of the temporary pipe main body 20. Further, the outer peripheral surface of the outer diameter of the expanded diameter temporary pipe 30 of the wiring recessed portion 19 is covered by the groove cover 39, and the fixing bolt member 25c is locked to the bottom surface of the groove 24 for cable wiring. When the female screw nut member 25a is used, it can be closed in advance.

As shown in Figs. 5(a) and 5(b), the enlarged diameter ferrule 40 has, for example, an outer diameter of about 680 mm as the outer diameter of the outer diameter of the expanded diameter temporary pipe 30, and serves as a horizontal cross member with the buried pipe 12. In the same planar shape, the sleeve plates 41a and 41b of a circular steel plate having a diameter of about 680 mm are welded and joined to the peripheral edge portion, and the flat cylindrical shape having a length of about 100 mm in the axial direction X is closed. The steel pipe is formed by opening the outer ends of the outer casing 46. Further, a reinforcing ring 47 disposed concentrically with the inside of the outer casing 46 is attached to a position corresponding to the tubular tube 21 of the temporary pipe main body 20.

In the central portion of each of the socket plates 41a and 41b, similarly to the main body plates 22a and 22b, the measurement openings 17 are overlapped with the measurement openings 17 of the main body plates 22a and 22b, respectively, and are formed, for example, by the departure shaft 14 A circular measurement opening 17 having a diameter of about 150 mm for measurement of laser light is used. In addition, each of the socket plates 41a and 41b is disposed around the measurement opening 17, and corresponds to the drain pipe connection opening 23a, the mud pipe connection opening 23b, and the injection pipe connection opening 23c corresponding to the body plate plates 22a and 22b. And the position corresponding to the connection opening 23d of the drain pipe, the dredging pipe socket opening 42a, the mud feeding pipe socket opening 42b, the injection pipe socket opening 42c, and the drain pipe socket opening 42d are formed in the opening. Further, an elastic spacer made of, for example, a rubber high-repulsive elastic member is attached to the peripheral edge portion of the opening of the socket openings 42a, 42b, 42c, and 42d so as to be sleeved by the bolt-engaging sleeve 40. When the connecting plates 41a and 41b are in close contact with the main body plates 22a and 22b of the temporary pipe main body 20, the sleeve pipes 43a, 43b, and 43c disposed in the expanded diameter ferrule 40 can be firmly held in a state in which the sealing property is firmly maintained. 43d is in communication with the tubes 16a, 16b, 16c, 16d disposed in the temporary tube body 20.

The socket body 43a, 43b, 43c, 43d disposed inside the expansion ferrule 40 is, for example, a sleeve drain pipe 43a made of a steel cylindrical short pipe, a sleeve transfer mud pipe 43b, and a sleeve injection. The tube 43c and the socket drain pipe 43d are linearly arranged in parallel along the axial direction X of the diameter expansion ferrule 40, and the peripheral edge portions of the openings at both ends are welded and joined to the sleeves of the respective socket plates 41a and 41b. The opening peripheral portions of the openings 42a, 42b, 42c, and 42d are connected to be firmly supported and fixed.

Further, in the present embodiment, the bolt expansion portion 45 that opens the outer surface of the outer casing 46 at an angular interval of 45 degrees in the circumferential direction is provided at four locations in the expanded diameter ferrule 40. The bolt locking portion 45 is formed, for example, by fitting the partitioning plate 48 to be interposed between, for example, a pair of socket plates 41a, 41b, thereby dividing a space between the pair of socket plates 41a, 41b. The bolt locking portion 45 is provided in a box shape having the same shape as the inner side bolt locking portion 18 in which the bolt box 28 of the temporary pipe main body 20 and the bolt case 38 of the expanded diameter temporary pipe 30 are continuous. At each bolt locking portion 45, at a position corresponding to the bolt hole 27 of the bolt box 28 of the temporary pipe body 20 and the bolt hole 37 of the bolt case 38 of the expanded diameter temporary pipe 30, respectively, through the socket plates 41a, 41b The perforations form an inner bolt hole 49a and an outer bolt hole 49b. Further, in the present embodiment, the inner side bolt hole 49a is formed only in the front side of the socket plate 41a, and the inner side bolt hole 49a and the outer side bolt hole 49b are formed in the opening side of the socket plate 41b. Further, a female screw nut member 50a is fixed to the bottom surface portion of the bolt locking portion 45, and the outer opening surface of the bolt locking portion 45 is covered by the cover 51, and the fixing bolt member 50b can be locked to the female screw The cap member 50a is appropriately opened and closed.

Further, in the present embodiment, the outer peripheral portion of the expanded ferrule 40 is provided at the upper end portion when the temporary use pipe 10 is connected to the muddy shield digger 11 from the rear and is installed. The cable-containing notch recess 44 is extended in the axial direction X including the portions of the socket plates 41a and 41b. The cable-groove recessed portion 44 has a wiring recess that is formed integrally with the cable-wiping trench 24 of the temporary pipe main body 20 and the cable-wiring through-groove 34 of the expanded-diameter pipe 30 in the radial direction. 19 is formed by recessing the outer peripheral surface of the expanded diameter sleeve 40 in the same cross-sectional shape, and is provided so as to overlap the wiring recess 19 in the axial direction. In the cable wiring notch recess 44, various wirings such as a cable that connects the departure shaft 14 and the shield tunneling machine 11 can be disposed without passing through the inside of the diameter expansion ferrule 40. Further, the female screw nut member 25a is fixed to the bottom surface portion of the cable wiring notch recess 44, and the fixing bolt member 25b can be locked to the female screw nut member 25a to be detachably attached to the cover cable. The groove cover 39 is formed on the outer opening surface of the notch recess 44 for the wire wiring.

In the present embodiment, for example, in the factory and the work site on the ground, the temporary pipe main body 20 is fitted inside the main body mounting portion 31a formed by the inner cylindrical body 31 of the expanded diameter temporary pipe 30, and is mounted and disposed. In the state of the temporary pipe main body 20 and the one end (front side) of the expanded diameter temporary pipe 30, the expanded diameter ferrule 40 is disposed, and when the bolts are joined to integrate the same, the temporary pipe body 20 can be obtained. The temporary pipe 10 for propulsion method is constructed by replacing the expanded diameter temporary pipe 30 and the expanded diameter ferrule 40.

In other words, as shown in FIGS. 2(a) and 2(b), the cable wiring groove 24 of the temporary pipe main body 20 and the cable routing notch through groove 34 of the expanded diameter temporary pipe 30 are continuous in the radial direction. The wiring recess 19 is formed, and the bolt case 28 of the temporary pipe main body 20 and the bolt case 38 of the expanded diameter temporary pipe 30 are continuous in the radial direction to form the rear side bolt locking portion 18, and the temporary pipe main body 20 is disposed. In the one end surface of the temporary pipe main body 20 and the expanded diameter temporary pipe 30 in the state of the inner side of the expanded diameter temporary pipe 30, the cable wiring notch recessed portion 44 is positioned in the wiring recessed portion 19, and the bolt locking portion is provided. 45 is positioned on the inner side bolt locking portion 18, and the sleeve member 41b on the rear side of the expansion-diameter sleeve 40 is closely connected, and the bolt member is inserted into the bolt bolt hole 27, 37 and the bolt of the inner side bolt locking portion 18 of the fitting. When the bolt holes 49a and 49b of the locking portion 45 are locked, the enlarged diameter ferrule 40, the temporary tube main body 20, and the expanded diameter temporary tube 30 can be easily joined and integrated. The temporary pipe 10 for propelling the method is used. In addition, the tube bodies 16a, 16b, 16c, and 16d disposed in the temporary tube main body 20 can be accurately placed in a state in which the elastic member is highly repelled by the rubber to maintain a strong sealing property. The socket bodies 43a, 43b, 43c, and 43d of the expansion ferrule 40 are in communication.

Here, in the present embodiment, when the expanded outer diameter pipe 30 and the expanded diameter ferrule 40 having different outer diameters are used for the integrated temporary pipe main body 20, the temporary pipe main body 20 can be used for Propulsion of buried pipe 12 with different outer diameters. In other words, for example, the main body mounting portion 31a having the same size according to the inner cylindrical body 31 having the same inner diameter is provided, and the plurality of expanded diameter temporary tubes 30 having different sizes of the outer cylindrical members 32 are formed, and the temporary tube body is selectively installed. 20, and using the expanded diameter ferrule 40 having the same outer diameter as the outer diameter of the plurality of expanded diameter temporary tubes 30 according to the different outer diameters, the expanded diameter ferrule 40 and the temporary tube body 20 When the expanded-diameter temporary pipe 30 is joined and integrated, it is possible to easily form the temporary pipe 10 for propulsion of the propulsion process for the buried pipe 12 having different outer diameters. Therefore, according to the present embodiment, as long as the temporary pipe 10 is connected in the axial direction X, in addition to the drain pipe 16a and the mud pipe 16b, it is necessary to make the injection pipe 16c and the drain pipe 16d high-precision, so that it can be made at a high precision. The utility model can be connected in a state in which the sealing property is firmly maintained, so that the temporary and expensive pipe body 20 which is expensive to manufacture can be transferred to the propulsion project of the buried pipe 12 of the different outer diameter, so that the construction cost of the entire propulsion method can be effectively reduced. .

Further, in the present embodiment, the temporary pipe 10 for propulsion method formed as described above is connected to the rear side by bolting as shown in Fig. 6 . In other words, for example, in the inside of the departure shaft 14, the rear end portion is connected to the end surface of the underground propulsion method temporary pipe 10, and is disposed, for example, by another working method suspended from the work site on the ground. With the tube 10, the cable wiring notch recessed portion 44 is positioned in the wiring recessed portion 19, the bolt locking portion 45 is positioned on the rear side bolt locking portion 18, and the sleeve portion 41a on the front side of the expanded diameter sleeved tube 40 is formed. When the bolt member 52 is in close contact with the bolt hole 27 of the inner side bolt locking portion 18 and the inner bolt hole 49a of the bolt locking portion 45, the bolt member 52 is tightly connected to the front end surface portion to be locked by the rear side. The work method uses the temporary pipe 10 to successively connect the temporary pipe 10 for propelling the work method. In addition, the tube body of the temporary pipe body 20 disposed in the preceding temporary pipe 10 for the propulsion method can be accurately inserted in a state in which the elastic member is highly repelled by the rubber and the sealing property is maintained firmly. 16a, 16b, 16c, 16d and the sleeve bodies 43a, 43b, 43c, 43d of the expansion ferrule 40 disposed in the subsequent temporary use pipe 10, and the pipe body 16a disposed in the temporary pipe body 20. , 16b, 16c, 16d are connected.

According to this embodiment, the buried pipe 12 can be placed underground by using the above-described propulsion method for the temporary use pipe 10, for example, in accordance with the following steps shown in Figs. 1(a) to 1(d). That is, the telescopic drive of the main support jack 15 (refer to FIG. 7) provided in the departure shaft 14 is used to cut the tunnel into the work section surface by the excavation portion 13 of the shield tunneling machine 11, while the shield is dug into the machine 11 After the shield body 11a and the subsequent pipe 11b are pushed out to the ground, for example, the temporary pipe 10 for propelling the method suspended from the work site on the ground is disposed at the rear end of the subsequent pipe 11b and the push wheel portion 53 of the main jack 15 Between (refer to Figure 1 (a)).

Here, as shown in FIG. 7, the main support jack 15 can be a hydraulic jack having a stroke amount of, for example, 1500 KN and having a stroke length of about 1350 mm, which is conventionally used as a jack for a propulsion method. In the present embodiment, the two main support jacks 15 are used, and the propulsion reaction force can be obtained by the support wall 54 provided on the departure shaft 14 while the main support jack 15 is telescopically driven, and the push wheel portion 53 is started along the starting point. The gantry 55 advances and retreats in the direction of digging.

Further, in the present embodiment, in the state in which the press-fitting sheet 52 is interposed between the end portion of the temporary pipe 10 for propelling the process and the push wheel portion 53, the temporary pipe for the propulsion method can be used by the main support jack 15. 10 launched to the underground. In other words, as shown in FIGS. 8(a) and 8(b), the press-fitting piece 52 is provided with a sheet member of a curved tube, and is disposed such that both sides thereof are sandwiched by the main support jack 15 at a central portion of the push wheel portion 53. The end portions of the drain pipe 16a, the mud transfer pipe 16b, the injection pipe 16c, and the drain pipe 16d disposed in the temporary pipe main body 20 are respectively connected to the drip pipe sheets opened to the front side of the press-fitting sheet 52. The opening 56a, the blade opening 56b for the drip pipe, the opening for sheet opening 56c, and the sheet opening 56d for the drain pipe, for example, the muddy water or the like which is discharged by the shield tunneling machine 11 by the drain pipe 16a is turned upward by the curved pipe, It is sent to the work site on the ground via a connection pipe or the like.

The rear end portions of the pipe bodies 16a, 16b, 16c, and 16d are connected to the sheet openings 56a, 56b, 56c, and 56d of the press-fitting piece 52, and the temporary pipe 10 for propulsion method is disposed before the push wheel portion 53, and the main support is used. The jack 15 slightly pushes out the pusher wheel portion 53 and engages the propulsion process temporary pipe 10 in a state where the partition member 11c is placed at the rear end portion of the subsequent pipe 11b at the rearmost portion of the shield tunneling machine 11. In this case, the mud pipe, the mud pipe, the injection pipe, and the drain pipe of the shield tunneling machine 11 are disposed, and the mud pipe 43a, the sleeve mud pipe 43b, and the sleeve are provided via the expansion pipe ferrule 40. The injection pipe 43 and the socket drain pipe 43d are connected to the drain pipe 16a, the mud pipe 16b, the injection pipe 16c, and the drain pipe 16d of the temporary pipe body 20, respectively. In addition, various wirings such as cables arranged to connect the starting shaft 14 and the shield tunneling machine 11 are disposed in the cable wiring notch recess 44 and the wiring recess 19 .

Then, the main wheel jack 15 is further pushed out to push the wheel portion 53 while the excavation portion 13 of the shield tunneling machine 11 cuts the tunnel into the work surface, and the shield tunneling machine 11 simultaneously pushes the temporary pipe 10 for the propulsion method. Push into the ground. After the main support jack 15 is extended by one stroke, the main support jack 15 is contracted to move the push wheel portion 53 backward, and the temporary propulsion pipe 10 is attached to the temporary propulsion pipe 10 after the advancement process. The same operation is repeated, and the propulsion method is pushed into the ground with the temporary pipe 10 toward the shaft.

At the same time as the shield tunneling machine 11 pushes the temporary pipe 10 for the propulsion method to the ground for a specific length, the sliding material injection pipe 57 is connected to the temporary pipe 10 for the propulsion method at the last stage, and the air supply for the sliding material is connected. The hose 58 can be used to inject the sliding material around the temporary pipe 10 for pushing the underground propulsion method (see Fig. 1(b)).

In addition, after repeating the digging operation to complete the propulsion pipe 10 for all the propulsion methods, the temporary pipe 10 is connected to the temporary pipe 10 in the last part of the propulsion method, and the wiring and the like are connected. The air supply hose or the like is housed in the temporary tube rear ferrule 59 (see Fig. 1 (c)). Further, a spacer 60 is provided at the end flange portion after the temporary tube ferrule 59 is temporarily used. Further, a cover 61 is provided before the press-in piece 52, and a pad 62 is provided in front of the cover 61.

After the temporary pipe nipple 59 is pushed into the ground at the same time as the shield boring machine 11 and the temporary pipe 10 for the propulsion method, the partition 60 provided at the rear flange portion of the ferrule 59 after the temporary pipe is removed. A buried pipe 12 composed of, for example, a centrifugal reinforced concrete pipe is disposed between the temporary pipe ferrule 59 and the pusher wheel 62 (refer to FIG. 1(d)), and the buried pipe 12 is passed through the temporary pipe ferrule 59. It is connected to the rear of the temporary pipe 10 for the propulsion method. Then, while the main support jack 15 is stretched and contracted, the other buried pipe 12 is successively connected after the buried pipe 12, and the buried pipe 12 is pushed out toward the starting shaft simultaneously with the temporary pipe 10 for propulsion method, thereby using the propulsion method. The temporary pipe 10 is replaced with the buried pipe 12, and the buried pipe 12 is placed underground.

On the other hand, the temporary use pipe 10 for the propulsion method according to the present embodiment can be used for the propulsion work of the buried pipe 12 having different outer diameters, and an efficient project for reducing the construction cost can be implemented. That is, the temporary pipe 10 for propulsion method of the present embodiment is constituted by the temporary pipe main body 20, the expanded diameter temporary pipe 30, and the expanded diameter ferrule 40 as described above, and the integrated temporary pipe main body 20 is When the expanded diameter temporary pipe 30 and the expanded diameter ferrule 40 of the different outer diameters are used, the temporary pipe body 20 can be transferred to the propulsion project of the buried pipe 12 of the different outer diameter, so it is not necessary to follow the difference. Each of the propulsion projects of the outer diameter buried pipe 12 separately manufactures the temporary pipe body 20 which is expensive and expensive to manufacture, and therefore, the construction cost of the entire propulsion method can be effectively reduced.

Further, the present invention is not limited to the above embodiment, and various modifications can be made. For example, the temporary pipe body, the expanded diameter temporary pipe, or the expanded diameter ferrule may not necessarily have a circular cross section, and may have other cross-sectional shapes such as an elliptical cross section. Further, the main body mounting portion on the inner side of the expanded diameter temporary tube does not necessarily need to be formed inside the outer cylindrical body, and may be formed by, for example, the inner side of the outer cylindrical body in the radial direction and the outer peripheral side of the outer cylindrical body. A plurality of ribs are disposed, and a portion surrounded by the front edge portion of the rib is used as the body mounting portion. In addition, the bolt locking portion does not necessarily need to be provided as a box-shaped portion.

10. . . Temporary tube for propulsion method

11. . . Mud-water shield tunneling machine (front end with excavation before the conduit)

12. . . Buried tube

13. . . Excavation department

14. . . Departure shaft

15. . . Main support jack

16a. . . Drain pipe (pipe body)

16b. . . Sew pipe (pipe body)

16c. . . Injection tube

16d. . . Drain pipe (pipe body)

17. . . Measuring opening

18. . . Inside side bolt locking

19. . . Wiring recess

20. . . Temporary tube body

twenty one. . . Cylindrical tube

22a, 22b. . . Body plate

23a, 23b, 23c, 23d. . . Connection opening

twenty four. . . Cable trench

27. . . Bolt hole

28. . . Bolt box

30. . . Extended diameter temporary tube

31. . . Inner cylinder

31a. . . Body mounting

32. . . Outer cylinder

33a, 33b. . . Expanded plate

34. . . Notched through groove for cable wiring

37. . . Bolt hole

38. . . Bolt box

40. . . Expanding ferrule

41a, 41b. . . Socket plate

42a, 42b, 42c, 42d. . . Socket opening

43a, 43b, 43c, 43d. . . Socket body

44. . . Notched recess for cable wiring

45. . . Bolt lock

49a. . . Inner bolt hole

49b. . . Outer bolt hole

52. . . Press-in piece

53. . . Push the wheel

X. . . Axis direction

1(a) to 1(d) are schematic longitudinal sectional views showing the operation steps of a propulsion method for a temporary pipe using a propulsion method according to an ideal embodiment of the present invention.

Fig. 2 is a view showing a configuration of a main part of a temporary pipe for a propulsion method according to an ideal embodiment of the present invention, wherein (a) is a longitudinal sectional view, and (b) is a front view taken from the left side.

Fig. 3 is a view showing the configuration of a main part of the temporary pipe main body, (a) is a longitudinal sectional view, and (b) is a front view taken from the left side.

Fig. 4 is a view showing the configuration of the main part of the expanded diameter temporary pipe, (a) is a longitudinal sectional view, and (b) is a front view taken from the left side.

Fig. 5 is a view showing the configuration of the main part of the expanded ferrule, (a) is a longitudinal sectional view, and (b) is a front view of the left side as viewed from the left side.

Fig. 6 is a longitudinal sectional view for explaining a state in which the temporary pipe for the propulsion method is successively connected in the axial direction.

Fig. 7 is a side view showing the constitution of the main support jack.

Fig. 8 is a view showing the constitution of the press-in sheet, (a) the upper view, and (b) the front view.

16a. . . Drain pipe

17. . . Measuring opening

18. . . Inside side bolt locking

19. . . Wiring recess

20. . . Axis direction X temporary tube body

22a, 22b. . . Body plate

twenty four. . . Cable trench

25a, 29a, 50a. . . Female threaded nut member

25c, 29b, 50b. . . Fixed bolt member

27, 37. . . Bolt hole

28, 38. . . Bolt box

30. . . Extended diameter temporary tube

34. . . Notched through groove for cable wiring

36, 51. . . Cover

39. . . Ditch cover

40. . . Expanding ferrule

41a, 41b. . . Socket plate

42a (43a). . . Socket opening for draining pipe (socket draining pipe)

42b (43b). . . Sleeve opening for mud pipe (set of mud pipe)

42c (43c). . . Sleeve opening for injection tube (sleeve injection tube)

42d (43d). . . Jacking opening for drain pipe (socket drain pipe)

43a. . . Socket drain pipe

44. . . Notched recess for cable wiring

45. . . Bolt lock

48. . . Partition plate

49a. . . Inner bolt hole

49b. . . Outer bolt hole

X. . . Axis direction

Claims (5)

A temporary pipe for propulsion method, characterized in that it is used for propelling a method, and the propulsion method is to use a jack from a starting shaft to push out a front end pipe having a digging portion and a temporary pipe connecting the front pipe, and one side The sand excavated by the excavation part is discharged through a drain pipe disposed in the temporary pipe, and after being dug into the shaft, the buried pipe is connected to the last temporary pipe from the departure shaft and further pushed out, and Disposing the temporary tube and the embedding tube, thereby disposing the buried tube in the underground; and comprising: a temporary tube body, wherein the main body plate respectively closes the opening of the two ends of the cylindrical tube, and is inside the cylindrical tube The plurality of tubes are disposed in parallel with the axial direction, and the opening edges of the two ends of the tube are respectively joined to the opening formed by the openings formed in the body plate; the expanded diameter temporary tube has a a main body mounting portion having an inner diameter equal to an outer diameter of the outer diameter of the cylindrical tube, and an outer diameter of the outer cylindrical body, and an outer diameter of the outer cylindrical body And having the same outer diameter as the outer diameter of the expanded diameter temporary tube; and the both end faces have the same planar shape as the cross-sectional shape of the embedded pipe; a flat hollow cylinder closed by a pair of socket plates, and at each of the socket plates, a plurality of socket openings are formed at positions corresponding to the connection openings of the temporary pipe body, and the sleeve plates are arranged on both sides A socket body is attached between the socket openings, and a plurality of bolt locking portions that can be opened and closed on the circumferential surface are disposed at intervals in the circumferential direction; and the temporary use is installed on the inner side of the expanded diameter temporary pipe Pipe body In the state in which at least one of the temporary tube body and the expanded diameter temporary tube is provided with the expanded diameter ferrule, the socket opening is aligned with the connection opening of the body plate, and the temporary opening is used. The pipe body inside the pipe body is connected to the socket body, and the expansion pipe sleeve is bolted to the temporary pipe body and the expanded diameter temporary pipe through the bolt locking portion, so that the expansion sleeve is The takeover, the temporary pipe body and the expanded diameter temporary pipe are joined and integrated. The temporary pipe for a propulsion method according to claim 1, wherein the central portion of the body plate and the ferrule are formed with openings for measurement in a central portion overlapping the axial direction. The temporary pipe for a propulsion method according to claim 1, wherein the expanded diameter temporary pipe system is provided inside the outer cylindrical body, and the inner cylindrical body having the same inner diameter as the outer diameter of the cylindrical pipe is arranged concentrically In the double structure, the inner side of the inner cylindrical body is used as the main body attaching portion, and both ends of the hollow portion between the inner cylindrical body and the outer cylindrical body are closed by the enlarged diameter plate. The temporary pipe for propulsion method according to claim 2, wherein the expanded diameter temporary pipe system is provided inside the outer cylindrical body, and the inner cylindrical body having the same inner diameter as the outer diameter of the cylindrical pipe is concentrically arranged In the double structure, the inner side of the inner cylindrical body is used as the main body attaching portion, and both ends of the hollow portion between the inner cylindrical body and the outer cylindrical body are closed by the enlarged diameter plate. The temporary pipe for propulsion method according to any one of claims 1 to 4, wherein the outer peripheral portion of the cylindrical pipe of the temporary pipe body is in the axial direction A cable groove for recessed inward is formed over the entire length of the cable, and a cable is formed at a position corresponding to the groove for the cable wiring in the axial direction of the expanded diameter temporary tube. In the wire-wounding through-groove, a notch recessed portion for cable wiring is formed at a position where the expansion-diameter ferrule overlaps the cable-wiping groove and the cable-wiring through-groove in the axial direction.