JP2010031557A - Conveying system in shield tunnel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying system, economically reciprocating a segment truck in a space of a narrow shield tunnel. <P>SOLUTION: A track-mounted truck including a wheel and an equipment-track-mounted truck are used, or a track-mounted truck and a converted long sleeper are used. On the equipment-track-mounted truck or the converted long sleeper, a track having the same span as an invert track and subsequent equipment are installed in parallel. A track on the truck is installed with a gradient so that one end thereof is joined to the invert track, and the other end thereof is connected to the track on the equipment-track-mounted truck or a track on the long sleeper on the converted long sleeper. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a transportation system that can economically transport a segment in a shield tunnel in which a subsequent facility is arranged and a use space is narrow.

In particular, in a shield tunnel with a small cross section, if the subsequent equipment is arranged, the use space becomes narrow, and the transportation of segments and the like is hindered.
For this reason, the conventional shield tunnel transport system employs the following configuration to solve the problem.
1) In a shield tunnel with a substantially circular cross section, the crossing distance becomes longer as it approaches the center. Therefore, in order to pass the side of the subsequent equipment through the segment carriage, a structure has been developed that allows the use of long sleepers. (Structure A) In this structure, since the width is wide over the entire line, the structure is highly safe.
2) A structure in which another track is installed outside the invert track and the subsequent equipment is mounted on a gate-type cart that straddles the upper space of the segment cart. (B structure) This structure has the effect of significantly reducing temporary costs compared to the A structure in which long sleepers are laid and removed on all lines.
3) A structure in which the subsequent equipment is incorporated into the shield machine and eliminates the need for a carriage to carry the subsequent equipment. (C structure) Since there is no subsequent equipment in the middle of the transportation route, there is no problem in passing the segment cart.

The above-described conventional transport system in a shield tunnel has the following problems.
1) In the A structure, it is necessary to install a long sleeper over the entire line including the position where it is not necessary to increase the available width, and the material cost, laying cost and removal cost are required, which is uneconomical. Is.
2) In the B structure, since the cradle is installed outside, there is a limit to the space that can be used. In addition, it was necessary to move the outer track and its cradle forward one after another, which was difficult to apply to shield tunnels with a large cross section due to the limitations of manual transfer.
3) The C structure is an improvement of the shield machine itself, and the subsequent equipment is built into the shield machine, so there is a problem that the price of the shield machine increases.

  In order to solve the above-described problems, one system of the present invention is a shield tunnel in which a single-line invert track is laid on the floor surface of a substantially circular shield tunnel.・ Equipment / track that uses a track-mounted carriage and travels on an invert track with a track on the same diameter as the Invert track on the upper surface, and runs across the invert track. On the top of the carriage, the top track with the same diameter as the invert track and the following equipment are installed in parallel on the top surface. The top track is joined to the invert track and the other end on the track It is characterized by a transfer system in a shield tunnel that is installed with a slope so as to connect with a track on a carriage.

  Another system of the present invention is a shield tunnel in which a single-line invert track is laid on the floor surface of a substantially circular shield tunnel, and a track-mounted carriage with wheels and the like and a diverted long sleeper that is longer than the transverse dimension of the invert portion. A track mounted carriage that uses and travels on an invert track has a track on the top of the same diameter as the invert track on the top surface. On the upper surface, a track on the long sleeper having the same diameter as the invert track and a track for the subsequent equipment for moving the subsequent equipment are installed in parallel, and the diverted long sleeper is diverted on the wellhead side along with the advance of the shield machine. The sleeper is diverted to the shield machine and is passed over the upper space of the invert track. One end of the track on the bogie is joined to the invert track, and the other end is on the diverted long sleeper. The conveying system in the shield tunnel laid with a gradient portion so as to be connected to the long sleepers orbit in which characterized.

  Still another system of the present invention uses a moving jetty equipped with wheels and capable of traveling on an invert track in a shield tunnel in which a single-track invert track is laid on the floor surface of a substantially circular shield tunnel. The upper surface is wider than the width of Invert, and the upper track with the same diameter as the Invert track and the following equipment are installed on this upper surface. Further, the moving jetty has inclined sections on both sides, and the upper track is inclined on both sides. It is characterized by a transfer system in a shield tunnel configured such that the lower end of the part is joined to the invert track.

Since the transport system in the shield tunnel of the present invention is as described above, the following effects can be obtained.
<1> Since the system of the present invention locally increases the level of the rail and increases the width that can be used there, and uses the conventional inverted orbit in other places, a position that does not require widening. It is extremely economical compared to a structure in which long sleepers are installed over the entire line.
<2> The part where the width is expanded locally is advanced with the advance of the shield machine. Therefore, it is possible to cope with all the excavations of long shield tunnels with a certain amount of materials, which is extremely economical.
<3> It is not necessary to remove the temporary material over the entire line at the end of the construction, and the removal process is shortened, so the construction period is shortened and the cost can be reduced.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

<1> Precondition.
The present invention is a transport system used in a shield tunnel A having a substantially circular cross section.
In such a shield tunnel A, the crossing distance becomes longer as it approaches the center, and the usable width becomes wider accordingly.
Further, it is assumed that the invert track 1 is laid on the floor surface of the shield tunnel A in a single-wire state over the entire line.
The invert track 1 is the track surface of the shield tunnel A, that is, a track in which two rails are installed on the invert. Basically, the invert track 1 is used to transport materials such as segments to the face. Do.

<2> A cart to be used.
In the configuration of this embodiment, the following two types of carts are used.
That is, there are two types: a track-mounted carriage 2 and a facility / track-mounted carriage 3.
Each cart is composed of a plurality of carts and is used by being connected.
A plurality of equipment / track mounted carriages 3 are arranged near the face and shield machine A1, and a plurality of track mounted carriages 2 are connected to the wellhead side.
And all the track mounting trolleys 2 and the equipment / track mounting trolleys 3 are connected to the shield machine A1.
Then, since the track-mounted carriage 2 and the equipment / track-mounted carriage 3 move forward as the shield machine A1 advances, it is not necessary to adopt another moving means and moving work.

<3> Track mounted carriage.

<3-1> Structure of track mounted carriage.
The track-mounted carriage 2 has wheels 21 below it, and a carriage-top track 22 having the same diameter as that of the invert track 1 is installed at substantially the center of the upper surface thereof.
The distance between the wheels of the track-mounted carriage 2 is equal to the span of the invert track 1, and the wheels can be mounted on the invert track 1 and moved.
The bogie upper track 22 mounted on the upper surface of the track mounted bogie 2 is composed of two rails that are also installed through the same span as the invert track 1.

<3-2> Inclination of track on bogie.
The installation height of the track 22 on the carriage varies depending on the thickness of the floor of the track-mounted carriage 2, and the height from the position of the invert track 1 can be determined depending on the thickness of the floor surface of the track-mounted carriage 2.
For example, if a high H steel is arranged, the installation height of the truck upper track 22 installed thereon can be set at a position away from the invert track 1, and if a low H steel or the like is arranged, the truck upper track. The installation height of 22 approaches the installation height of the invert track 1.
Then, in the plurality of track-mounted carriages 2, the installation height is gradually changed to provide an inclination on the carriage upper track 22.
Further, in the track-mounted carriage 2 disposed at the position closest to the wellhead, the end of the rail protruding from the end of the carriage is installed in a state of rubbing against the invert track 1.
As a result, the carriage top track 22 can be joined to the invert track 1.
Then, the material transporting cart, for example, the segment cart that has traveled on the invert track 1 can be moved from the travel on the invert track 1 to the travel on the bogie upper track 22 on the track-mounted cart 2.

<4> Equipment / track mounted carriage (Fig. 4).
The equipment / track mounted carriage 3 is a carriage that travels outside the Invert track 1.
In order to be able to travel outside the invert track 1, the distance between the wheels 32 installed on the lower surface of the equipment / track mounted carriage 3 is wider than the span of the invert track 1.
As a result, the floor surface of the equipment / track mounted carriage 3 is at a high position, and a wide-width carriage can be configured.
In this equipment / track mounted carriage 3, a truck-mounted track 31 having the same diameter as the inverted track 1 and a subsequent equipment 33 are installed in parallel on the upper surface thereof.
The reason that the carriage upper track 31 and the subsequent equipment 33 can be installed in parallel is that, as described above, the height of the floor surface becomes high and a wide width can be used.
Accordingly, the position of the track 31 on the carriage on the upper surface of the equipment / track-mounted carriage 3 is arranged not on the center but on one side.
However, when there is a margin in the width, the track 31 on the carriage can be arranged at the center, and the subsequent equipment 33 can be arranged on both sides.
In that case, there is an advantage that the track 31 on the carriage can be arranged on the same straight line as the inverted track 1 and the extension of the subsequent equipment 33 can be shortened.
The height of the truck-mounted track 31 on the equipment / track-mounted carriage 3 is maintained at an integral height, unlike the truck-mounted track 31 on the track-mounted carriage 2 inclined as described above.

<5> Adjustment of the position of the track on the carriage.
As described above, the bogie upper track 22 is installed in the approximate center of the track mounted bogie 2.
On the other hand, the bogie upper track 31 on the upper surface of the equipment / track mounted bogie 3 is usually installed at a position biased to one side.
Therefore, the truck upper track 22 on the track mounted carriage 2 and the truck upper track 31 on the equipment / track mounted carriage 3 are not joined as they are.
Therefore, the track 22 on the track mounted on the track mounted carriage 2 is arranged in a curved line gradually shifted from the center, and the track 31 on the track mounted carriage 2 and the facility mounted track 3 It is configured so that the track 31 on the carriage can be smoothly joined.

<6> Joining the track on the carriage.
The truck upper track 22 on the plurality of track mounted carriages 2 and the truck upper track 31 on the plurality of equipment / track mounted carriages 3 are all connected as one track.
The track-mounted track 22 from the most wellhead of the track-mounted carriage 2 is joined to the invert track 1, and the track-mounted track 22 from the shield machine A 1 is connected to the track-mounted track 31 on the equipment / track-mounted carriage 3.

<7> Operation.
The segment carriage for material transportation that has traveled on the invert track 1 from the wellhead reaches the track-mounted carriage 2 and transfers to the upper carriage 22 on the carriage.
Then, it rises along the inclination of the carriage upper track 22 and travels on the carriage upper track 22 at a certain height.
The vehicle travels as it is and travels on a bogie track 31 above the equipment / track mounted bogie 3.
On the equipment / track-mounted carriage 3, the subsequent equipment 33 is installed in parallel with the truck-mounted truck 31, so the segment truck moves smoothly on the side surface of the subsequent equipment 33 and reaches the shield machine A1.
In the shield machine A1, the segment is taken down, travels again on the bogie tracks 31 and 22, and returns to the wellhead.
In this way, only a part of the floor of the long shield tunnel A is installed at a high position so that the segment cart can be avoided, and the segment cart at other positions is traveled by the invert track 1.
The track-mounted carriage 3 for connecting the track 31 on the carriage with a gradient to the equipment / track-mounted carriage 3 installed at a high position is moved forward by the advance of the shield machine A1. Therefore, the segment carriage is always unaffected by the presence of the succeeding equipment 33 without requiring any special work, and can be smoothly transported.

<8> Use of a sled.
In the above description, the case where the wheels 21 and 32 are used for both the track-mounted carriage 2 and the facility / track-mounted carriage 3 has been described.
However, it is also possible to use a sled instead of the wheels 21 and 32.
In this case, the warp is a steel member having a curved surface at the tip, and can slide on the invert by the curved surface.
Therefore, the expression “wheels and the like” includes a known sliding means such as a sled, and the same applies to other embodiments.

  Next, another embodiment will be described with reference to FIGS.

<1> Precondition.
This embodiment is also a transfer system used in the shield tunnel A having a substantially circular cross section.
In such a shield tunnel A, the crossing distance becomes longer as it approaches the center of the circle, and the available width becomes wider accordingly.
Further, it is assumed that the invert track 1 is laid on the floor surface of the shield tunnel A in a single-wire state over the entire line.
The invert track 1 is the track surface of the shield tunnel A, that is, a track in which two rails are installed on the invert. Basically, the invert track 1 is used to transport materials such as segments to the face. Do.

<2> Truck mounted carriage.
In the configuration of the present invention, only the track-mounted carriage 2 is used.
The configuration of the track-mounted carriage 2 is as described in detail above, and is a carriage that travels on the invert track 1 with wheels 21, and the carriage-mounted track 22 is mounted on the upper surface thereof. It is.
The span of the carriage upper track 22 is the same as that of the inverted track 1.
In the plurality of track-mounted carriages 2, the installation height is gradually changed to provide an inclination on the carriage upper track 22.
Further, in the track-mounted carriage 2 disposed at the position closest to the wellhead, the end of the rail protruding from the end of the carriage is installed in a state of rubbing against the invert track 1.
As a result, the carriage top track 22 can be joined to the invert track 1.
Then, the segment cart that has traveled on the invert track 1 can be moved from the travel on the invert track 1 to the travel on the bogie upper track 22 on the track-mounted cart 2.

<3> Diverted long sleepers.
In this embodiment, the equipment / track mounted carriage 3 is not used, and instead, a diverted long sleeper 4 longer than the transverse dimension of the invert portion is used.
Since this diverted long sleeper 4 has a dimension longer than the transverse dimension of the invert, when installed in the transverse direction orthogonal to the axial direction of the shield tunnel A, the upper space across the invert track 1 at a position higher than the invert. Can be passed on.
A long sleeper upper track 41 having the same diameter as that of the invert track 1 is also mounted on the upper surface of the diverted long sleeper 4.
Further, a track 43 for the subsequent equipment 42 is laid on the diverted long sleeper 4 in parallel with the track 41 on the long sleeper.

<4> Subsequent equipment.
Subsequent equipment 42 equipped with devices and equipment required for excavation of shield machine A1 is configured to be movable and slidable by attaching wheels or the like to the cart type.
For this purpose, a track 43 for the subsequent equipment 42 is laid on the diverted long sleeper 4.
The track for the subsequent equipment 42 also adopts a configuration that can be easily installed and disassembled and moved forward as the diverted long sleeper 4 is diverted.

<4> Adjustment of the position of the track on the long sleepers.
As described above, the bogie upper track 22 is installed in the approximate center of the track mounted bogie 2.
On the other hand, on the diverted long sleeper 4, the long sleeper upper track 41 on the upper surface is installed at a position biased to one side.
Therefore, the track 31 on the track mounted on the track 2 and the track 41 on the long sleeper 4 on the diverted long sleeper 4 are not joined as they are.
Therefore, in the middle part of the track 41 on the long sleeper, the track is gradually shifted from the center so that the track 22 on the track 2 on the track mounted carriage 2 and the track 41 on the long sleeper 4 on the diverting long sleeper 4 can be smoothly joined. Configure as follows.

<5> Diversion of long sleepers.
The diverting long sleeper 4 is used by being transferred to the upper space of the invert track 1 by diverting the diverting long sleeper 4 on the wellhead side to the shield encircling machine A1 side as the shield excavating machine A1 moves forward.
Here, diversion means lifting and removing the diversion long sleepers 4 placed on the wellhead side, transporting them close to the shield machine A1 with human power or simple carts, and installing them in the direction crossing the tunnel. Say.
As a result of the diversion work, along with advancement of the shield machine A1, the long sleeper track 41 and the subsequent equipment 42 can be moved on the diverted long sleeper 4 and moved forward little by little in the shape of a worm.

<6> Operation.
A segment cart or the like that has traveled on the invert track 1 from the wellhead reaches the track-mounted cart 2 and transfers to the track 22 on the cart.
And it goes up along the inclination of the bogie upper track 31 and travels on the bogie upper track 22 at a certain height.
Travel as it is and travel on the track 41 on the long sleepers.
On the long sleeper track 41, the subsequent facility 42 is installed in parallel with the long sleeper track 41, so the segment carriage smoothly moves on the side surface of the subsequent facility 42 to reach the shield machine A1.
In the shield machine A1, the segment is taken down and travels again on the long sleeper track 41 and the carriage track 22 to return to the wellhead.
In this way, only a part of the floor of the long shield tunnel A is installed at a high position by using the diverted long sleeper 4 so that the segment cart can be avoided, and the basic segment cart travel is the invert track 1. Is what you do.

<7> Diversion of long sleepers.
When the shield machine A1 excavates by a certain amount and moves forward, there is a space between the track 41 on the long sleeper closest to the machine and the shield machine A1.
Then, the diverted long sleeper 4 closest to the wellhead is removed, and is hung in the transverse direction at the position closest to the shield machine A1. This is the diversion of the diverted long sleeper 4.
When the installation of the diverted long sleepers 4 of several spans is completed, the long sleeper upper track 41 and the follower equipment track 43, which are also removed from the wellhead, are transported and laid to the shield shield machine A1 most.
In this way, the track 41 on the long sleeper and the track 43 for the subsequent equipment are advanced in the shape of a scale insect.

<8> Advance of track-mounted carriage.
When the long sleeper track 41 is moved forward, an interval is generated between the rearmost part of the long sleeper track 41 and the foremost part of the track mounted carriage 2.
Therefore, the track mounted carriage 2 is drawn toward the track 41 on the long sleeper by using a winch or the like installed in a part of the subsequent equipment 42.
Since all the track mounted carriages 2 are sequentially connected, the whole is drawn to the shield machine A1 side, and the advance of the entire system is completed.

  Still another embodiment will be described with reference to FIGS.

<1> Precondition.
This embodiment is also a transfer system used in the shield tunnel A having a substantially circular cross section.
In such a shield tunnel A, the crossing distance becomes longer as it approaches the center, and the usable width becomes wider accordingly.
Further, it is assumed that the invert track 1 is laid on the floor surface of the shield tunnel A in a single-wire state over the entire line.
The invert track 1 is the track surface of the shield tunnel A, that is, a track in which two rails are installed on the invert. Basically, the invert track 1 is used to transport materials such as segments to the face. Do.

<2> Mobile pier.
A movable jetty 5 is movably mounted on the invert track 1.
The moving pier 5 is a frame that has wheels 54 at the bottom and can travel on the invert track 1.
Since the height of the moving pier 5 is higher than that of the invert, the substantially circular shield tunnel A can secure a width sufficiently wider than the width of the invert.
By utilizing the wide width, a pier track 51 having the same diameter as the invert track 1 is installed on one side of the upper surface of the movable pier 5.
Further, a succeeding facility 52 is installed on the moving jetty 5 in parallel with the jetty track 51.
The moving pier 5 is provided with ramps 53 on both sides.
The jetty track 51 on the ramp 53 is configured such that both sides thereof can be joined to the invert track 1.

<3> Operation.
Since the shield tunnel A has a substantially circular cross section, the upper surface of the moving pier 5 has a width that is sufficiently wider than the transverse width of the tunnel in the invert portion.
Therefore, it is possible to install the jetty track 51 and the subsequent equipment 52 in parallel on the moving jetty 5.
Therefore, the segment cart that supplies the segment to the shield machine A1 can reciprocate through the invert track 1 and the pier track 51 and through the side surface of the subsequent facility 52.
When the shield machine A1 moves forward, the moving pier 5 is also pulled by a winch or the like to move forward on the invert track 1.

The top view of arrangement | positioning in the conveyance system of Example 1 of this invention. The front view of the track mounting trolley | bogie used in Example 1,2. FIG. 3 is a perspective view of the track-mounted carriage in FIG. 2. 1 is a front view of a facility / orbit mounted carriage used in Example 1. FIG. The top view of arrangement | positioning in the conveyance system of Example 2. FIG. FIG. 6 is a layout diagram on a track on a long sleeper used in the second embodiment. The perspective view of the moving jetty used in Example 3. FIG.

Explanation of symbols

1: Inverted track 2: Track mounted carriage 22: Track mounted on truck 3: Equipment / track mounted truck 31: Track mounted on truck 4: Converted long sleeper 41: Track on long sleeper 5: Invert pier 51: Track on truck

Claims (3)

In a shield tunnel in which a single-line invert track is laid on the floor of a nearly circular shield tunnel,
Using a track-mounted carriage equipped with wheels, etc. and a facility / track-mounted carriage,
The track mounted carriage that runs on the Invert track has a track on the same diameter as the Invert track on the top surface.
In the equipment and track mounted carriage that runs across the invert track, the track on the carriage with the same diameter as the invert track and the following equipment are installed in parallel on the upper surface,
The track on the bogie is joined at one end to the invert track,
The other end was installed with a slope to connect to the track on the bogie on the equipment / track mounted carriage,
Transport system in shield tunnel.
In a shield tunnel in which a single-line invert track is laid on the floor of a nearly circular shield tunnel,
Using a track-mounted carriage with wheels, etc. and a diverted long sleeper that is longer than the transverse dimension of the invert part,
The track mounted carriage that runs on the Invert track has a track on the same diameter as the Invert track on the top surface.
In the long sleeper diverted across the invert orbit and over the upper space,
On the upper surface, a track on a long sleeper having the same diameter as the invert track, and
Install the following equipment track for the movement of the following equipment in parallel,
Along with the advance of the shield machine, the diverted long sleeper diverts the diverted long sleeper on the wellhead side to the shield machine, and passes it over the upper space of the invert track,
The track on the bogie is joined at one end to the invert track,
The other end was installed with a slope to connect with the track on the long sleeper on the diverted long sleeper,
Transport system in shield tunnel.
In a shield tunnel in which a single-line invert track is laid on the floor of a nearly circular shield tunnel,
Use a moving jetty that can run on Invert tracks with wheels,
The upper surface of the moving pier has a width wider than the width of Invert,
On this upper surface, install a track on the carriage with the same diameter as the Invert track, and subsequent equipment,
Furthermore, the moving jetty has slopes on both sides,
The track on the carriage is configured such that the lower ends of the inclined portions on both sides are joined to the invert track,
Transport system in shield tunnel.

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