JP6294516B2 - Equipment supply equipment - Google Patents

Description

  The present invention relates to an equipment supply device used when starting a tunnel excavator from a plurality of locations of a cylindrical underground structure.

  The junction of the road tunnel and the station building of the railway tunnel become an underground space with a large section that is wider than the normal main tunnel. For this reason, as disclosed in Patent Document 1, there is a case where a cylindrical outer shell is formed by a plurality of small cross-sectional tunnels arranged in parallel and excavated inside.

  On the other hand, in Patent Document 2, a circular shield starting base is constructed by widening the bottom of the main shield tunnel, and a ring shield is formed by a circumferential shield machine that is dug in the circumferential direction along the outer periphery of the main shield tunnel. A method for constructing an outer shell shield launch base is disclosed.

  From this outer shield starting base, an outer shell shield machine for excavating a plurality of outer shield tunnels constructed in parallel with the main shield tunnel is started.

  In addition, the outer shield start base serves as a material supply device for supplying materials such as segments necessary for excavation of the shield tunnel. This material supply apparatus is configured to run a rotating drum between a guide rail that is an outer circle and a guide rail that is an inner circle.

JP-A-2015-105513 JP2015-129411A

  However, the material supply apparatus disclosed in Patent Document 2 is an inner cylindrical structure in which the starting base is ring-shaped (annular) to support the inner-circular guide rail, in other words, an outer cylindrical concentric circle. Is an essential configuration.

  Therefore, an object of the present invention is to provide a material / equipment supply device that can be arranged simply by using the inner periphery of various forms of underground structures having an outer shell formed in a cylindrical shape.

  In order to achieve the above object, the material / equipment supply apparatus of the present invention is a material / equipment used when starting a tunnel excavator from a plurality of locations of a cylindrical underground structure surrounded by a plurality of existing tunnels. It is a supply apparatus, Comprising: In any position of the rail part laid circularly along the inner peripheral surface of the underground structure, the traveling carriage part movable along the rail part, and the rail part And a supply unit attached to the traveling carriage unit via a mechanism for maintaining the level of the equipment.

  Here, the traveling carriage part can be guided to the rail part only from the outer peripheral side, and the traveling carriage part can include a traveling roller part that can hold the rail part. Moreover, it can be set as the structure by which the said some traveling trolley part and supply part are arrange | positioned at the said rail part. Further, the rail portion is laid so that a plurality of paths are formed substantially parallel to each other at intervals, and the traveling carriage section and the supply section that travel along each path are disposed. You can also

  Furthermore, at least one of the traveling cart unit and the supply unit may include an arm unit that can extend toward an adjacent path.

  The supply unit includes a turning rail fixed to the traveling carriage unit, a turning roller capable of traveling along the turning rail, a stacking base on which the materials and equipment are placed, the turning roller, and the loading base. It can be set as the structure which has the turning ring to connect.

  The material / equipment supply device of the present invention configured as described above is provided on a traveling carriage unit movable along a rail portion laid circularly along an inner periphery of a cylindrical underground structure. Even at the position, the supply unit is attached through a mechanism that maintains the level of the equipment.

  For this reason, whatever size the cylindrical underground structure is formed, the rails are laid on the inner periphery of the structure to supply materials such as tunnel excavators and segments. Equipment supply equipment can be arranged. For example, it is possible to construct an underground structure that greatly widens an existing tunnel, and to efficiently perform construction using a tunnel excavator from the periphery.

  In addition, if a plurality of traveling carriage units and supply units are arranged in the rail portion, a plurality of tunnels can be constructed at the same time, and the construction period can be greatly shortened. Furthermore, if a plurality of routes are formed substantially parallel at intervals, materials and equipment can be replenished sequentially using another route for the supply unit stopped at the tunnel construction site. .

  In addition, if at least one traveling carriage unit and the supply unit are provided with an arm unit that can be extended toward an adjacent route, even if the distance between the stopped supply units is separated via the arm unit Equipment can be moved.

  Furthermore, the mechanism for maintaining the level of the equipment is to connect the loading base on which the equipment is placed to the turning roller by the turning ring, and to make the turning roller travel along the turning rail fixed to the traveling carriage unit. It can be easily manufactured.

It is explanatory drawing which showed the structure of the start base by which multiple shield machine supply apparatuses of this Embodiment are arrange | positioned. It is the perspective view which showed typically the structure of the starting base and several outer shell tunnel extended | stretched from there. It is explanatory drawing which expanded and showed the structure of the shield machine supply apparatus. It is the side view which looked at the shield machine supply apparatus in the AA arrow direction of FIG. It is the top view which looked at the shield machine supply apparatus in the BB arrow direction of FIG. It is explanatory drawing which showed the structure of the start base by which multiple segment supply apparatuses of this Embodiment are arrange | positioned. It is explanatory drawing which expanded and showed the structure of the segment supply apparatus. It is a side view explaining the process of moving a segment toward a shield machine supply apparatus from a segment supply apparatus. It is a side view explaining the state which made the several segment supply apparatus adjoin to the shield machine supply apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the inside of a departure base 2 as an underground structure described in the present embodiment. FIG. 2 shows the departure base 2 and existing tunnels (1, 11 connected before and after the departure base 2). ) And a merging main body portion 21 constructed around them is a perspective view schematically showing.

  The existing tunnels, the ramp tunnel 1 and the main tunnel 11, are built in advance in the ground. In the present embodiment, a cylindrical start base 2 is constructed as an underground structure from the ramp tunnel 1 into the ground, and the outer shield machine 4 is started from the start base 2 so that the outer shell tunnel 22,. The method of constructing will be described as an example.

  That is, the start base 2 is a base from which the outer shell shield machine 4 is started in order to construct a large space in which the lamp tunnel 1 and the main line tunnel 11 are widened in a longer section.

  For example, in the case of the main tunnel 11 and the ramp tunnel 1 that are road tunnels, a plurality of outer shell tunnels 22,... The outer shell is formed in a cylindrical shape. If the main tunnel 11 is a railroad tunnel, the large underground space constructed from the departure base 2 is a station building or the like.

  As shown in FIG. 1, the departure base 2 includes a cylindrical outer shell portion 2a that surrounds the lamp tunnel 1 and the main tunnel 11, and end walls 2b and 2b that are provided so as to close both ends of the cylindrical outer shell portion 2a. It is mainly composed of

  The inner periphery of the departure base 2 becomes the inner peripheral surface of the cylindrical outer shell 2a. The end wall 2b is constructed in a disc shape by a cement-based mixed material such as fiber reinforced concrete or reinforced concrete. As apparent from FIG. 1, the area of the end wall 2 b is larger than that of the cross section of the lamp tunnel 1, and it can be said that the starting base 2 is the widened portion of the lamp tunnel 1.

  From the edge of the end wall portion 2b, the outer shell tunnels 22,... Thereafter, the succeeding outer shell tunnels 22A,... Are constructed so as to connect the outer shell tunnels 22, 22.

  The tunnel excavator for constructing these outer shell tunnels 22, 22 A is the outer shell shield machine 4. And the equipment supply apparatus which uses this outer shell shield machine 4 as an equipment is the shield machine supply apparatus 3 which becomes 1st Embodiment.

  As shown in FIG. 3, the shield machine supply device 3 includes a rail portion 23 as a rail portion laid in an annular shape along the inner periphery of the cylindrical outer shell portion 2 a, and a traveling carriage movable along the rail portion 23. It is mainly comprised by the rotation supply part 34 as a supply part attached to the traveling cart part 31 through the mechanism in which the level of the outer shell shield machine 4 is maintained at any position of the rail part 23. The

  As shown in FIGS. 4 and 5, the shield machine supply device 3 travels along a route formed by two substantially parallel rail portions 23 and 23. The traveling cart unit 31 serving as the traveling means is mainly composed of a traveling unit 32 and a frame body unit 33.

  The traveling portion 32 is mainly configured by traveling rollers 321 and 321 (traveling roller portions) that are paired to sandwich the upper flange of the rail portion 23 having an I-shaped section, and a drive motor 323 that is a drive source.

  As shown in FIG. 4, the rotational force generated by the drive motor 323 is transmitted to the drive rail 324 laid inside the rail portion 23, thereby allowing the shield machine supply device 3 to travel. Since this drive motor 323 serves as a power source for transporting heavy objects such as the outer shell shield machine 4, a motor suitable for output at a high load and low turning speed is used.

  As shown in FIG. 3, the traveling portion 32 and the leg portion 331 of the frame body portion 33 are connected via a rotatable shaft support portion 322. The frame body portion 33 is formed with a substantially rectangular (substantially square) skeleton in a side view by a steel material such as a shape steel.

  A turning supply unit 34 serving as a supply unit for the outer shell shield machine 4 is attached to the frame body unit 33. The turning supply unit 34 includes a turning rail 341 fixed to the frame body portion 33, a plurality of turning rollers 35 that can travel along the turning rail 341, and a stacking base 36 on which the outer shell shield machine 4 is placed. , And a turning ring 351 that connects the loading base 36 to each other.

  The turning rail 341 is fixed to each side of the substantially square frame body part 33. An annular turning ring 351 is arranged in parallel along the turning rail 341. A plurality of swiveling rollers 35,... Project from the swiveling ring 351 toward the center, and the swiveling rollers 35,... Are in contact with the inner peripheral surface of the swiveling rail 341.

  With this configuration, the swivel ring 351 can be freely rotated along the swivel rail 341. The loading base 36 is fixed to the turning ring 351.

  On the plane of the loading base 36, a base 361 for mounting the outer shell shield machine 4 is provided. In the swivel ring 351 in which the periphery of the swivel rail 341 is rotatable, the vicinity of the mounting position of the load base 36 that becomes heaviest becomes the center of gravity, and the upper surface of the load base 36 tends to be a horizontal plane.

  Further, the rotation of the swivel ring 351 is controlled by transmitting a part of the driving force of the drive motors 323,. Note that an electric motor, a hydraulic motor, a pneumatic motor, or the like can be separately provided as a driving force.

  In FIG. 3, the upper surfaces of the work floors 37 and 37 fixed to the frame body portion 33 are arranged at a position continuous with the upper surface of the stacking base 36. The positional relationship between the work floor 37 and the loading base 36 changes depending on which position of the annular rail portion 23 the shield machine supply device 3 is located.

  The position on the left side of the lamp tunnel 1 in FIG. 1 is the position shown in FIG. If the work floors 37, 37 are continuous with the loading base 36 at a position adjacent to the lamp tunnel 1, it can be used as a scaffold when loading or assembling the outer shield machine 4.

  On the other hand, at the position of the shield machine supply device 3 that descends to the right from this position, the work base 37 rises diagonally to the upper right while the stacking base 36 is kept horizontal.

  Furthermore, at the position of the shield machine supply device 3 at the lowest point of the departure base 2, the work floor 37 is perpendicular to the right side of the horizontal loading base 36 and forms a vertical surface. As described above, the positional relationship between the work floor 37 and the loading base 36 changes because the direction of the frame 33 changes sequentially with the movement of the traveling carriage 31, while the turning supply unit This is because 34 is maintained horizontal.

  The outer shield machine 4 placed on the base 361 of the turning supply unit 34 is always in a horizontal state regardless of the position of the starting base 2 where the shield machine supply device 3 moves. Even the excavation of the outer shell tunnels 22, 22A,.

  Further, the supply of the outer shell shield machine 4 to the shield machine supply device 3 is performed using a transport carriage 41 that travels the floor slab 1 b of the lamp tunnel 1. That is, the outer shell shield machine 4 carried into the ramp tunnel 1 from the ground can be transported to the start base 2 by the transport carriage 41 and sequentially supplied to the shield machine feeders 3.

  The outer shell shield machine 4 can be divided and transported in consideration of the cross-sectional size of the lamp tunnel 1 and workability during loading, and can be assembled and integrated on the shield machine feeder 3. During the assembly, the work floors 37 and 37 serve as scaffolds. Further, the transport carriage 41 in the ramp tunnel 1 can be changed in direction as necessary between traveling and loading work.

  Subsequently, a material / equipment supply device that uses the segment 6 or the like as the lining portion of the outer shell tunnels 22, 22 </ b> A as a material will be described as the segment supply device 5 of the second embodiment.

  As shown in FIGS. 6 and 7, the segment supply device 5 includes a rail portion 23 as a rail portion laid in an annular shape along the inner periphery of the cylindrical outer shell portion 2 a, and a travelable movement along the rail portion 23. It is mainly comprised by the trolley | bogie part 51 and the turning supply part 54 as a supply part attached to the traveling trolley | bogie part 51 through the mechanism in which the level of the segment 6 is hold | maintained in any position of the rail part 23. FIG.

  As shown in FIGS. 8 and 9, the segment supply device 5 travels along a route formed by two substantially parallel rail portions 23 and 23. As shown in FIG. 7, the traveling cart unit 51 serving as the traveling unit is mainly configured by a traveling unit 52 and a frame body unit 53.

  The traveling portion 52 is mainly configured by traveling rollers 521 and 521 (traveling roller portions) that are paired to sandwich the upper flange of the rail portion 23 having an I-shaped section, and a drive motor 523 that is a drive source.

  As shown in FIG. 8, the rotational force by the drive motor 523 is transmitted to the drive rail 524 laid on the inner side of the rail portion 23, thereby allowing the segment supply device 5 to travel. This drive motor 523 is lighter than the outer shell shield machine 4 called the segment 6 and serves as a power source for transporting things that require rapid supply. Therefore, the drive motor 523 is suitable for output at a low load and high turning speed. Is done.

  As shown in FIG. 7, the traveling portion 52 and the leg portion 531 of the frame body portion 53 are connected via a rotatable shaft support portion 522. The frame body portion 53 is formed with a substantially rectangular (substantially square) skeleton in a side view by a steel material such as a shape steel.

  A turning supply unit 54 serving as a supply unit for the segment 6 is attached to the frame body unit 53. The swivel supply unit 54 is a stack for placing a swivel rail 541 fixed to the frame body part 53, a plurality of swivel rollers 55 that can travel along the swivel rail 541, and segments 6,. It is mainly comprised by the turning ring 551 which connects the base 56, the turning roller 55, ..., and the stacking base 56.

  The turning rail 541 is supported by a rail support portion 542 that protrudes from each side of the substantially square frame body portion 53 toward the center. On the inner peripheral surface side of the swivel rail 541, an annular swivel ring 551 that is slightly smaller is fitted.

  Further, a plurality of swiveling rollers 55,... Are attached to the swiveling ring 551 so that the swiveling rollers 55,... Can run along the inner peripheral surface of the swiveling rail 541. .

  With this configuration, the turning ring 551 can be freely rotated along the turning rail 541. The loading base 56 is fixed to the turning ring 551.

  The loading base 56 accommodates a segment carriage 62 on which the segment 6 is placed. In the swivel ring 551 in which the inner periphery of the swivel rail 541 is rotatable, the vicinity of the mounting position of the load base 56 that becomes the heaviest becomes the center of gravity, and the upper surface of the load base 56 tends to be a horizontal plane.

  Further, the rotation of the turning ring 551 is controlled by transmitting a part of the driving force of the driving motors 523,. Note that an electric motor, a hydraulic motor, a pneumatic motor, or the like can be separately provided as a driving force.

  In FIG. 7, the upper surfaces of the work floors 57 and 57 fixed to the frame body portion 53 are arranged at a position continuous with the upper surface of the stacking base 56. The positional relationship between the work floor 57 and the loading base 56 changes depending on which position of the annular rail portion 23 the segment supply device 5 is located on. The position on the left side of the lamp tunnel 1 in FIG. 6 is the position shown in FIG.

  On the other hand, at the position of the segment supply device 5 that has been lowered to the right, the work base 57 is in a state of being raised obliquely in the upper right direction while the loading base 56 is kept horizontal.

  Further, at the position of the segment supply device 5 at the lowest point of the departure base 2, the work floor 57 is perpendicular to the horizontal loading base 56 and forms a vertical plane. As described above, the positional relationship between the work floor 57 and the loading base 56 changes because the orientation of the frame body portion 53 sequentially changes as the traveling carriage unit 51 moves. This is because the level 54 is maintained.

  Then, the segment 6 placed on the segment carriage 62 of the turning supply unit 54 always remains in a horizontal state regardless of the position of the segment supply device 5 on the starting base 2, and the outer shell tunnel 22 at any position. , 22A,..., The segment 6 can be supplied stably.

  In addition, the supply of the segment 6 to the segment supply device 5 is performed using a transport crane 61 installed in the ramp tunnel 1. That is, the segments 6,... Carried into the ramp tunnel 1 from the ground can be transported to the start base 2 and loaded on the segment carriage 62 on the segment supply device 5 one after another.

  As shown in FIG. 8, the segment supply device 5 in which the segment cart 62 is fully loaded with the segments 6,... Is different from the path formed by the pair of rail portions 23 and 23 that travel the shield machine supply device 3. Will travel through the route.

  Since the outer shell shield machine 4 has already started at the time when the supply of the segments 6,... Has started, the outer shield machine 4 is installed in the shield machine supply device 3 stopped at the entrance of the outer tunnel 22. It is not loaded and can be used as a work platform.

  Next to the shield machine supply device 3 serving as a work scaffold, the segment supply device 5 loaded with the segments 6,. Here, when the separation between the shield machine supply device 3 and the segment supply device 5 is large, the arm unit 38 extends toward the segment supply device 5 by operating the drive unit 381 of the shield machine supply device 3. Let

  In this way, when the arm portion 38 is bridged between the shield machine supply device 3 and the segment supply device 5, the segment carriage 62 is caused to travel so that the segment supply device 5 moves from the segment supply device 5 to the shield machine supply device 3. Can be supplied.

  As shown in FIG. 9, the segment supply device 5 can travel along a plurality of routes. That is, in this figure, the segment supply devices 5,... Can freely move along three paths formed by the pair of rail portions 23, 23, respectively.

  Next, the operation of the shield machine supply device 3 and the segment supply device 5 of the present embodiment will be described.

  The shield machine supply device 3 and the segment supply device 5 of the present embodiment configured as described above have a traveling carriage 31 that is movable along a rail portion 23 that is laid in an annular shape along the inner periphery of the departure base 2. , 51 are attached to the swivel supply units 34, 54 through a mechanism that maintains the level of the equipment at any position of the rail unit 23.

  For this reason, whatever size the cylindrical starting base 2 is formed, by providing the rail portion 23 on the inner periphery thereof, materials such as the outer shell shield machine 4 and the segment 6 are supplied. The shield machine supply device 3 and the segment supply device 5 can be arranged.

  For example, it is possible to efficiently perform a construction in which a start base 2 that greatly widens the lamp tunnel 1 is constructed, and the outer shell shield machine 4 is started from the peripheral edge to construct the large cross-section merging body 21. become able to.

  If a plurality of shield machine supply devices 3,... And segment supply devices 5,... Are arranged on a path formed by a pair of rail portions 23, 23, a plurality of outer shell tunnels are simultaneously formed. .. (22A,...) Can be performed, and the construction period can be greatly shortened.

  Further, by forming a plurality of paths formed by the pair of rail portions 23 and 23 substantially parallel to each other with respect to the shield machine supply device 3 stopped at the wellhead of the outer shell tunnels 22 and 22A. Then, it is possible to replenish materials such as segments 6,.

  Further, if the shield machine supply device 3 is provided with an arm portion 38 that can be extended toward an adjacent path, the arm portion 38 can be moved even if the distance from the segment supply device 5 stopped next to the shield device supply device 3 is long. You can move the equipment such as segment 6,.

  Further, the mechanism for keeping the outer shield machine 4 and the segment 6 horizontal is such that the loading bases 36 and 56 on which the outer shell shield machine 4 and the segment 6 are mounted are connected to the turning rollers 35 and 55 by the turning rings 351 and 551, respectively. It can manufacture easily by setting it as the structure which makes the turning rollers 35 and 55 drive along the turning rails 341 and 541 fixed to the parts 31 and 51. FIG.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  For example, in the above-described embodiment, the swivel supply units 34 and 54 have been described as an example of a mechanism for maintaining the level of the equipment. However, the present invention is not limited to this, and the level of the equipment to be loaded is maintained. Any mechanism can be used.

  In the above-described embodiment, the case where three rows of routes for traveling the segment supply device 5 are provided has been described. However, the present invention is not limited to this, and the route for running the segment supply device 5 is two rows. The following can be set arbitrarily according to the depth of the departure base 2 or more than four rows.

2 departure base (underground structure)
2a Cylindrical outer shell (inner circumference)
23 Rail section (rail section)
3 Shield machine supply equipment (equipment supply equipment)
31 Traveling cart unit 321 Traveling roller (traveling roller unit)
34 Turning supply part (supply part)
341 slewing rail 35 slewing roller 351 slewing ring 36 stacking base 38 arm 4 outer shell shield machine (tunnel excavator, equipment)
5 Segment supply equipment (equipment supply equipment)
51 Traveling cart unit 521 Traveling roller (traveling roller unit)
54 Turning supply unit (supply unit)
541 slewing rail 55 slewing roller 551 slewing ring 56 loading base 6 segment (materials)

Claims (4)

A material and equipment supply device used when starting a tunnel excavator from a plurality of locations of a cylindrical underground structure surrounded by a plurality of existing tunnels,
A rail portion laid in an annular shape along the inner peripheral surface of the underground structure;
A traveling carriage part movable along the rail part;
An equipment supply apparatus comprising: a supply section attached to the traveling carriage section through a mechanism that maintains the level of the equipment at any position of the rail section.   2. The equipment supply apparatus according to claim 1, wherein the traveling carriage part is guided to the rail part only from an outer peripheral side.   The material / equipment supply device according to claim 1, wherein the traveling carriage unit includes a traveling roller unit capable of holding the rail portion.   4. The equipment supply device according to claim 1, wherein a plurality of the traveling cart units and a supply unit are arranged in the rail unit. 5.