JP2014031685A - Liner plate assembly device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liner plate assembly device capable of mechanically erecting an arched (or gate-shaped) liner plate even in a space constraining its upper portion, such as a tunnel inner space, and easily adjusting position and posture of the liner plate on an erected assembly side to the liner plate on an existing side.SOLUTION: A liner plate assembly device is equipped with an erecting device 2 capable of erecting a liner plate from a fallen-down attitude to a vertical attitude on a base 1. The erecting device 2 includes: a boom 21 installed on the base 1 so as to freely rise and fall; a rising and falling means 22 for rising and falling the boom 21; a holding means 3 capable of holding the liner plate installed at a tip of the boom 21; and a posture adjustment means 4 provided between the tip of the boom and the holding means 3 in order to join the liner plate R on an assembly side with the liner plate on an existing side in an accurate attitude.

Description

  The present invention relates to a liner plate assembling apparatus used when a tunnel-like void (tunnel-shaped lining body) is formed inside with a relatively simple liner plate (lining material). The liner plate assembling apparatus of the present invention is used when the liner plates assembled in an arch shape or a gate shape are sequentially assembled. For example, a lifting space by a crane or the like upward in a tunnel, for example. It is suitable for liner plate assembly work where it cannot be removed.

  For example, when the inside of the tunnel is used as a short-term warehouse, the inner surface of the tunnel may be covered with a relatively simple lining body. In this case, the inner diameter of the tunnel may be relatively small (for example, the inner width may be 5 to 5.5 m and the height may be about 4 to 5 m in many cases). And in the case of such a simple tunnel lining form, a tunnel inner surface may be covered with a comparatively lightweight lining material (made of a thin steel plate).

  As described above, when the inner surface of the tunnel is covered with a relatively simple lining material (made of a thin steel plate), the conventional method is performed as shown in FIG.

  That is, in the conventional tunnel inner surface lining method shown in FIG. 18, in many cases, liner plates are sequentially assembled in a tunnel T excavated to a predetermined depth with a predetermined inner diameter. In the vicinity, a plurality of segments (made of thin steel plates) Ra, Ra,... Are laid on the ground and assembled in an arch shape (which may be a gate shape) to form a series of liner plates R. Next, the liner plate R is laid sideways and raised from a posture to a vertical posture, and the position and posture of the raised liner plate are adjusted to stand and be fixed at a predetermined position. In the following description, the liner plate that is self-supporting and fixed may be referred to as an existing side liner plate. Further, in the following description, the lying position includes a range slightly deviated from the horizontal plane by an angle (for example, about ± 5 °), and the vertical position is slightly deviated from the vertical plane by an angle (for example, about ± 5 °). ) It includes a shifted range.

  Then, on the ground in the vicinity of the existing side liner plate R1, each segment Ra, Ra,... Which becomes the next liner plate is assembled in an arch shape, and the next liner plate R (the next liner plate is installed on the assembly side). The assembly side liner plate R is laid down as shown by the arrow A and raised from the posture to the vertical posture, and the raised assembly side liner plate R ′ (shown by a chain line) is The position and orientation are adjusted, and the assembly side liner plate R ′ is joined to the existing side liner plate R1 in a state where the end faces are in full contact with each other. Thereafter, the liner plates R1 and R ′ are connected and fixed by fastening the joint ends of the existing side liner plate R1 and the assembly side liner plate R ′ at a plurality of locations in the circumferential direction. In the same manner, the tunnel lining body S having a desired length is constructed by continuously connecting the necessary number of liner plates.

  By the way, as described above, when the tunnel lining body S composed of a large number of liner plates is constructed in the existing tunnel T, the assembly side liner plate R is erected from the state of being laid, and the assembly is performed. The operations such as aligning the side liner plate R with the existing side liner plate R1 cannot be used with a crane because there is a restriction on the upper side in the tunnel (the ceiling is close), and thus the conventional work of multiple persons is not possible. The current situation is that human resources are used by employees.

  As described above, when the liner plate R is erected or aligned by human power, the lightweight one is used as the segment Ra because it is required to reduce the weight of each liner plate R to a level that can be handled by human power. At the same time, the width of the liner plate R to be assembled is relatively narrow (for example, up to about 50 cm).

  The inventors of the present invention have laid the liner plate previously formed in an arch shape (or a gate shape) as described above, laid from the posture to the vertical posture, and connected to the existing side liner plate to sequentially cover the tunnel shape. As for the lining body construction method for constructing a construction body, when searching existing patent documents, no particularly relevant one was found.

  By the way, the above conventional method in which the liner plate assembled in an arch shape in the tunnel is assembled (raised and aligned) manually by an operator has the following problems.

  (1) In the work of raising the liner plate by human power, a considerable number of workers are required to raise the liner plate although it depends on the size and weight of the liner plate (right and left sides of the liner plate). A minimum of 4 to 5 workers are required, with 2 people holding each leg part and several people to stand up the liner plate).

  (2) Because it is necessary to limit the weight of the liner plate to a level that can be raised by human power, the width of one unit of the liner plate is reduced (for example, the width is limited to about 50 cm), and the construction of the lining body per time Low efficiency.

  (3) At the time of alignment when joining the assembly side liner plate to the existing side liner plate, the position adjustment and posture adjustment must be performed while supporting the assembly side liner plate with human power. The work of was very troublesome.

  (4) During the work process from raising the assembly side liner plate to positioning, the assembly side liner plate is in an unstable posture, and the worker always supports the assembly side liner plate. Although it is necessary to keep the liner plate inadvertently falling, there is a danger in the work by human power.

  Therefore, the present invention can mechanically raise the liner plate formed in an arch shape (or a gate shape) even in a space where the upper side is restricted as in a tunnel, for example, and the assembling side that is raised It is an object of the present invention to provide a liner plate assembling apparatus that can easily adjust the position and posture of the liner plate with respect to the existing side liner plate.

  The present invention has the following configuration as means for solving the above problems. In the present invention, for example, the liner plate assembly used when the tunnel-shaped lining body is constructed by sequentially assembling the arch-shaped or gate-shaped liner plate in a place where the upper side is restricted, such as in a tunnel. Intended for equipment. Also, in the following description of the present application, the lying position includes a range that is slightly deviated from the horizontal plane by an angle (for example, about ± 5 °), and the vertical position is an angle (for example, ± 5) from the vertical plane. The range including a shift of about 5 ° is included.

[Invention of Claim 1 of the Present Application]
The liner plate assembling apparatus according to the first aspect of the present invention is a device for raising an arch-shaped or gate-shaped liner plate from a horizontal position to a vertical position and joining the raised liner plate to an existing side liner plate. It is a thing equipped with the standing device which can stand up from a posture to a vertical posture by lying down on a liner plate on a base.

  The raising device has a boom that is undulated with respect to the base, a raising and lowering unit that raises and lowers the boom, and a holding unit that can hold a liner plate provided at the tip of the boom. .

  In addition, a posture for joining the liner plate to the existing side liner plate in an accurate posture in a state where the liner plate held by the holding means is raised in a vertical posture at the front side of the tip of the boom. Adjustment means are provided. In the following description, the tip of the boom may be simply referred to as the boom tip.

  The posture adjusting means is for joining the liner plate raised together with the boom in an accurate posture with respect to the existing liner plate. This posture adjusting means is used for the liner plate held by the holding means. The posture can be changed or the posture of the holding means can be changed with respect to the boom tip.

  The liner plate assembling apparatus according to claim 1 is used as follows. This liner plate assembling device is suitable for use in places where the upper part is restricted, such as in a tunnel, but it is also used when constructing a tunnel-like lining body in a place other than a tunnel. Is possible.

  First, at a position near the installation position of the liner plate (installation position in the standing position), a plurality of segments are laid down and assembled in an arch shape (or a gate shape) in a posture to assemble a series of liner plates. In this case, it is desirable to assemble the liner plate that has been assembled in a lying position on the spot so that the raised liner plate is erected almost at the normal installation position (later alignment) Work becomes easier).

  Thereafter, if the base cannot move by itself, the base is moved by an appropriate moving means (for example, a pulling means), and the central portion of the ceiling portion of the liner plate is held by the holding means of the boom tip. However, the axis of the boom is positioned so as to overlap with the center line of the tunnel width (width center line of the lining body to be constructed) in plan view.

  Next, in a state where the liner plate ceiling is held by the holding means, when the boom is laid down by the hoisting means and raised from the posture to the vertical posture, the liner plate can be raised to the vertical posture together with the boom.

  Then, the raised liner plate is erected and fixed at a predetermined position in the tunnel. If the liner plate is the first (first), the liner plate is raised with the boom, and the posture is adjusted. If the liner plate is the second or subsequent one, the raised liner plate is adjusted to a predetermined posture by the posture adjusting means. Are joined to the existing side liner plate and connected to the existing side liner plate by bolting or the like. Then, a series of tunnel-shaped lining bodies can be constructed by assembling the necessary number of liner plates sequentially to the existing side liner plate.

[Invention of claim 2 of the present application]
The invention according to claim 2 of the present application is the liner plate assembling apparatus according to claim 1, wherein the posture adjusting means can tilt the liner plate held by the boom tip holding means to the left and right with respect to the boom tip. It is characterized by comprising a tilting means, a left-right moving means that can be moved left and right, and a horizontal turning means that can be swung in a horizontal plane.

  According to the second aspect of the present invention, the posture adjustment means causes the liner plate to stand up with the boom, and the liner plate is tilted to the tip of the boom, and the three posture change adjustments of the horizontal tilt adjustment, the horizontal movement adjustment, and the horizontal turning adjustment are performed. It can be performed.

[Invention of claim 3 of the present application]
The invention of claim 3 of the present application is characterized in that, in the liner plate assembling apparatus of claim 1 or 2, a self-propelled traveling carriage is employed as a base.

  According to the third aspect, since the base is a traveling carriage capable of self-propelling, the liner plate assembling apparatus can be moved by itself.

[Invention of claim 4 of the present application]
The invention according to claim 4 of the present application is characterized in that, in the liner plate assembling apparatus according to any one of claims 1 to 3, a telescopic boom that is telescopic is adopted as the boom.

  The liner plate assembling apparatus according to the fourth aspect can be applied to liner plates having different heights because the boom expands and contracts. Further, in the liner plate assembling apparatus according to claim 4, by using both the telescopic boom extending and retracting operation, the position of the liner plate can be adjusted not only vertically but also forward and backward. ing.

[Invention of claim 5 of the present application]
The invention of claim 5 of the present application is characterized in that in the liner plate assembling apparatus of any one of claims 1 to 4, a work table is provided at a predetermined height position on the base.

  In the liner plate assembling apparatus according to the fifth aspect, the worker can go up on the work table and perform various operations.

[Invention of claim 6 of the present application]
The invention according to claim 6 of the present application is characterized in that the liner plate assembling apparatus according to claim 5 further includes an elevating device that elevates the work table relative to the base.

  In the liner plate assembling apparatus according to the sixth aspect, the work table can be moved up and down by the lifting device, so that the height of the work table can be adjusted.

[Invention of Claim 7 of the Present Application]
The invention according to claim 7 of the present application is the liner plate assembling apparatus according to any one of claims 1 to 6, wherein the base can move the lower surface of the base to a position higher than the height of the truck bed. Self-loading / unloading device having a sliding device capable of causing a jack of a book and a pair of jacks facing each left and right of each jack to be retracted between a position that fits inside a truck bed width and a position that straddles the truck bed width It is characterized by having.

  In the liner plate assembling apparatus according to the seventh aspect, since the self-loading / unloading device is provided on the base, the liner plate assembling device can be unloaded on the truck bed during transportation.

[Effect of the invention of claim 1 of the present application]
The liner plate assembling apparatus according to the first aspect of the present invention raises an arch-shaped (or gate-shaped) liner plate placed in a lying position at a tunnel-like lining body construction site to a vertical position by a standing device. On the other hand, the assembly side liner plate can be joined to the existing side liner plate in an accurate posture by the posture adjusting means.

  Therefore, the use of the liner plate assembling apparatus according to the first aspect has an effect that the work of joining the assembly side liner plate to the existing side liner plate can be performed efficiently and safely by a small number of people.

  Further, in the liner plate assembling apparatus according to the first aspect, the liner plate can be raised by the standing device, so that even a heavy liner plate to be assembled can be raised. Accordingly, a liner plate that can be widened (increases in weight) can be adopted as a liner plate that can be implemented by a single raising operation, and the construction efficiency (speed) of the tunnel-shaped lining body by the liner plate is also improved.

  Further, in the liner plate assembling apparatus according to the first aspect, since the liner plate can be raised from the space on the lower surface side thereof, it is a construction site for constructing a lining body where there is an upper restriction such as in a tunnel. However, the mechanical liner plate can be assembled.

[Effect of the invention of claim 2 of the present application]
The invention of claim 2 of the present application is the liner plate assembling apparatus of claim 1, wherein the liner plate held by the boom tip holding means can be tilted left and right with respect to the boom tip as the posture adjusting means. Since it includes a tilting means, a left and right moving means that can be moved left and right, and a horizontal turning means that can be swiveled in a horizontal plane, with respect to the existing side liner plate in a state where the assembly side liner plate is raised in a vertical posture, The left / right inclination degree, the left / right positioning (overlapping) degree, the joining degree of the facing portion, and the like can be respectively adjusted.

  Therefore, in the liner plate assembling apparatus according to the second aspect, in addition to the effect of the first aspect, the assembling side liner plate can be joined to the existing side liner plate at an accurate position and posture. In this way, when the assembly side liner plate is joined to the existing side liner plate in an accurate position and posture, the connecting operation (bolting operation) of both liner plates can be easily performed.

[Effect of the invention of claim 3 of the present application]
The invention of claim 3 of the present application employs a traveling carriage capable of self-propelling as a base in the liner plate assembling apparatus of claim 1 or 2.

  Accordingly, in the liner plate assembling apparatus according to the third aspect, in addition to the effect of the first or second aspect, the liner plate assembling apparatus can be moved by itself, and the assembling side liner plate is used as the existing side liner plate. There is an effect that it can also be used for front-rear position adjustment at the time of alignment.

[Effect of the invention of claim 4 of the present application]
The invention according to claim 4 of the present application employs a telescopic boom that is telescopic as the boom in the liner plate assembling apparatus according to any one of claims 1 to 3.

  Therefore, in the liner plate assembling apparatus according to the fourth aspect, in addition to the effects of the first to third aspects, since the boom expands and contracts, a plurality of liner plates having different heights can be obtained with one liner plate assembling apparatus. In addition to being applicable, it can be used for height adjustment when aligning the liner plate.

  Further, in the liner plate assembling apparatus according to the fourth aspect of the invention, by using the telescopic boom extending and retracting operation together, it is possible to adjust not only the height but also the front and rear in the state where the liner plate is raised. There is also an effect.

[Effect of the invention of claim 5 of the present application]
The invention according to claim 5 of the present application is the liner plate assembling apparatus according to any one of claims 1 to 4, wherein a work table is provided at a predetermined height position on the base.

  Therefore, in the liner plate assembling apparatus according to the fifth aspect, in addition to the effects of the first to fourth aspects, the auxiliary support by the hand during the raising operation of the assembling side liner plate and the liner after the liner plate is raised Since the plate posture adjustment work and the bolting work after joining both liner plates can be done from the work bench, both hands can be used for the work (easy to work) and the feet are stable, so the work is safe There is an effect that can be done. When working at a high place with a ladder (climbing a ladder), the feet become unstable and the use of both hands becomes difficult, making it difficult to work.

[Effect of the invention of claim 6 of the present application]
According to the sixth aspect of the present invention, in the liner plate assembling apparatus of the fifth aspect, since the lifting / lowering device for moving the working table up and down with respect to the base is provided, the height of the working table can be adjusted. ing.

  Therefore, in the liner plate assembling apparatus according to the sixth aspect, in addition to the effect of the fifth aspect, the height of the work table can be adjusted, so that the hand can reach from the work table over a wide range up and down. There is.

[Effect of the Invention of Claim 7 of the Present Application]
The invention according to claim 7 of the present application is the liner plate assembling apparatus according to any one of claims 1 to 6, wherein the liner plate assembling apparatus is capable of loading and unloading the liner plate assembling apparatus with respect to the truck bed by itself. Is provided.

  Therefore, in addition to the effects of the first to sixth aspects, the liner plate assembling apparatus according to the seventh aspect can load and unload the liner plate assembling apparatus with respect to the truck bed by itself. There is an effect that it is not necessary to prepare a lowering device (for example, another crane).

It is a side view of the liner plate assembling apparatus of this-application Example. It is a top view of the liner plate assembly apparatus of FIG. FIG. 3 is an enlarged view of the vicinity of the boom tip in a state where the liner plate is held by the holding means in FIG. 2. It is IV-IV sectional drawing of FIG. FIG. 3 is an explanatory diagram illustrating how to use the liner plate assembling apparatus of FIGS. 1 and 2. It is a side view of the liner plate standing state from FIG. FIG. 7 is a view corresponding to the right side surface (viewed by arrow VII) of FIG. 6. FIG. 8 is a view corresponding to FIG. 7 (problem explanatory diagram) in a state where the assembly side liner plate is tilted left and right with respect to the existing side liner plate. It is a top view (problem explanatory drawing) in the state where the assembly side liner plate shifted to the left-right direction with respect to the existing side liner plate. FIG. 10 is an enlarged view taken along arrow X in FIG. 9. It is a top view (problem explanatory drawing) in the state where the assembly side liner plate had an angle with planar view with respect to the existing side liner plate. It is explanatory drawing at the time of correct | amending the position shift state (state tilted to right and left) of FIG. It is explanatory drawing at the time of correct | amending the position shift state (left-right position shift state) of FIG.9 and FIG.10. It is explanatory drawing at the time of correct | amending the position shift state (state with an angle by planar view) of FIG. It is explanatory drawing at the time of loading / unloading the liner plate assembly apparatus of FIG. It is a perspective view of the liner plate made into object in the example of this application. It is XVII-XVII expanded sectional drawing of FIG. It is explanatory drawing of the lining body construction method in the tunnel by the liner plate conventionally performed.

[Example]
Hereinafter, the liner plate assembling apparatus of the present embodiment will be described with reference to FIGS.

  The liner plate R handled in the liner plate assembling apparatus of this embodiment uses a plate assembled in a wide state as shown in FIGS. 16 and 17, and this liner plate R is formed of a plurality of rectangular plates. Between the two rows of plate members P, P, which are assembled in an arch shape in a single row state, a reinforcing portion Q, in which a plurality of H-shaped steels are assembled in an arch shape in a single row state, is interposed. is there. In this embodiment, a plate-shaped member is used for the rectangular surface portion of the plate-like body used for each plate member P, but the rectangular surface portion may be a corrugated shape. Good.

  As will be described later (see FIG. 5), this liner plate R is formed on the ground surface of the place where the tunnel-shaped covering body is to be constructed (in this embodiment, in the tunnel T). Each H-shaped steel constituting the reinforcing portion Q is integrally assembled by bolting, and this liner plate R is assembled as follows. That is, bolt holes U, U,... Are formed on the four outer peripheral surfaces of each plate-like body constituting the plate material portion P, while bolt holes are also formed on each H-shaped steel constituting the reinforcing portion Q. And each plate-shaped body used as the board | plate material part P and each H-shaped steel used as the reinforcement part Q are each connected with the volt | bolt V (FIG. 17), as shown in FIG.16 and FIG.17, and two board | plate material parts It is assembled to a wide liner plate R in which one row of reinforcing portions Q is interposed between P and P.

  The size of the liner plate R (in FIG. 16) used in this embodiment is not particularly limited, but the distance D between the left and right leg portions Rb and Rb is 450 to 550 cm, and the ceiling portion Rc. Up to a height E of 400 to 500 cm and a width F in the depth direction of about 80 to 100 cm can be used.

  1 to 4, the liner plate assembling apparatus of this embodiment includes a self-propelled traveling carriage 1 and a liner plate R that is attached to the chassis 11 of the traveling carriage 1 and laid down. Is raised to a vertical posture, a work board 6 or 6 for boarding a worker mounted on the chassis 11, and this liner plate assembling apparatus is used as a loading platform 91 of the truck 9 (see FIG. 15C). And a self-loading / unloading device 8 that can be loaded / unloaded by itself. In this embodiment as well, the sideways posture includes a range slightly deviated from the horizontal plane by an angle (for example, about ± 5 °), and the vertical posture is a slight angle (for example, ± 5 ° from the vertical plane). To a certain extent).

  The traveling cart 1 corresponds to the base in the claims, and in this embodiment, the self-propelled traveling cart 1 is used as the base. The traveling carriage 1 is provided with left and right wheels (front wheels 13 and 13 and rear wheels 12 and 12) on the lower surfaces of the front and rear parts of the chassis 11 and hydraulically controls the left and right front wheels 13 and 13, respectively. The traveling carriage 1 can be moved forward and backward by being driven by a drive device using the motors 14 and 14.

  Note that devices such as a hydraulic unit and a switchboard (not shown) are mounted on the chassis 11 of the traveling carriage 1.

  The raising device 2 includes a telescopic boom 21 mounted on the chassis 11 of the traveling carriage 1, hoisting cylinders 22 and 22 for raising and lowering the telescopic boom 21, and a liner plate holding holder attached to the boom tip 21c. Means 3 and attitude adjusting means 4 for adjusting the attitude of the liner plate R held by the holding means 3 are provided. In this embodiment, the telescopic boom 21 is used as the boom in the claims, while the hoisting cylinders 22 and 22 are used as the hoisting means in the claims.

  The telescopic boom 21 used in this embodiment is composed of two booms, that is, a base boom 21a and a front boom 21b, but may be one using three or more booms. The front boom 21b is expanded and contracted with respect to the base boom 21a by a boom built-in hydraulic cylinder (not shown).

  This telescopic boom 21 is pivotally supported by a shaft 24 on left and right mounting bases 23, 23 attached to the front end of the chassis 11, and the distal end side of the telescopic boom 21 is the front of the chassis 11. It is attached so that it can fall on the side. A pair of boom raising and lowering cylinders 22 and 22 is provided on the left and right of the base boom 21a.

  In the contracted state of the hoisting cylinders 22, 22, the telescopic boom 21 falls down to a substantially horizontal posture with the boom tip side facing the rear as shown in FIGS. 1 and 2, while in the extended state of the hoisting cylinders 22, 22. 1 is raised up to a substantially vertical posture shown by a chain line (reference numeral 21 ') in FIG. The rear part of the chassis 11 has a bifurcated shape with the widthwise intermediate part cut away, so that the telescopic boom 21 does not collide with the chassis 11 even when the telescopic boom 21 is laid down to the maximum.

  The holding means 3 for holding the liner plate R is attached to the boom tip 21c via posture adjusting means 4 (horizontal turning means 42 and left / right moving means 41) described later. The holding means 3 used in this embodiment is an elongated holding base 31 having a considerable length (for example, about 100 to 110 cm) on the left and right, as shown in enlarged views in FIGS. Two guide plates 32, 32 are erected on the upper surface (right side in FIG. 4) at a predetermined interval (for example, an interval of 15 to 20 cm) in a direction (vertical direction in FIG. 4) perpendicular to the length direction of the holding table. is there. The guide plates 32 and 32 have the same length as the entire length of the holding base 31, and the distance between the guide plates 32 and 32 is an H-shaped steel used as the reinforcing portion Q of the liner plate R. Is set to be slightly wider than the bottom surface width (for example, about 10 cm).

  Between the guide plates 32 and 32 of the holding table 31, rollers 43a and 43a that can freely roll are attached to positions near both ends in the holding table length direction. Each of the rollers 43a and 43a constitutes a left / right tilting means 43 of a posture adjusting means 4 described later, and the function thereof will be described later.

  Of the guide plates 32, 32, on the inner surface side of the guide plate 32 which is the lower side in the boom lying state (FIG. 4), as shown in FIG. At the position spaced apart from the outer peripheral surface of 43a by a predetermined small interval (for example, an interval of about 15 to 20 mm) on the outside (right side in FIGS. 3 and 4), small-sized projecting pins 33 and 33 are attached inward. Yes.

  The distance from the tip of the protruding pin 33 to the inner surface of the guide plate 32 on the opposite side is set to be slightly larger than the bottom surface width (for example, about 10 cm) of the H-shaped steel serving as the reinforcing portion Q of the liner plate R. Yes. The distance between the outer surface of the protruding pin 33 and the outer surface of the roller 43a is set to be slightly larger than the thickness of the bottom surface portion (projecting piece Qa) of the reinforcing portion Q. The bottom protruding piece Qa can be inserted and removed between the protruding pin 33 and the roller 43a (the state shown in FIG. 4 and the state shown in FIG. 14).

  Then, as shown in FIG. 14, each of the projecting pins 33, 33 is provided when the reinforcing portion Q of the liner plate R is held by the holding means 3 (the bottom projecting piece Qa of the reinforcing portion Q is connected to the projecting pin 33 and the roller 43a. A function of being able to guard the outside of the outwardly projecting piece Qa of the reinforcing portion Q and thereby preventing the liner plate R from being accidentally dropped from the holding means 3. is there.

  Details of the operation (function) of the liner plate assembling apparatus of this embodiment will be described in detail later. This liner plate assembling apparatus performs the following basic operation. That is, as shown in FIGS. 1, 2, and 5, for example, after the ceiling portion Rc of the liner plate R lying down in the tunnel T is held by the holding means 3 (reference numeral 3 in FIGS. 1, 2, and 5). 1), the telescopic boom 21 is raised to the vertical posture (reference numeral 21 ') as shown by the arrow G in FIG. The plate is also raised to a vertical posture (reference R ′).

  When the raised liner plate R ′ is the first (first), it is installed (fixed) at the head position of the tunnel lining body to be constructed, and the raised liner plate R ′ In the case of the second or later one (assembled side liner plate), the end surface of the existing side liner plate R1 with the assembled side liner plate R suspended by the telescopic boom 21 as shown by an arrow H in FIG. Next, the telescopic boom 21 is contracted to lower the assembly side liner plate R to the same height as the existing side liner plate R1, and the posture adjustment means 4 described later is used to adjust the assembly side liner plate R. The joining end face is accurately aligned with the joining end face of the existing liner plate R. Thereafter, as shown in FIG. 7, after the worker sequentially connects a plurality of joint portions of the existing side liner plate R1 and the assembly side liner plate R with bolts, the holding means 3 holds the liner plate ceiling portion Rc. Is completed, the assembly work of one liner plate R is completed. Then, in the same manner, the required length of the tunnel lining body S can be completed by assembling the necessary number of liner plates R to the existing liner plate.

  By the way, in order to bolt the joint portion between the assembly side liner plate R and the existing side liner plate R1, the joint end surface of the assembly side liner plate R is accurately positioned with respect to the joint end surface of the existing side liner plate R1. Although it is necessary to match, when the assembly side liner plate is joined to the existing side liner plate R1 as shown by the symbol R 'in FIG. 6, the end surface of the assembly side liner plate R' is the existing side liner plate. It often happens that the end face of R1 is not joined to the correct posture and position.

  For example, when the assembly side liner plate R raised as shown in FIG. 8 is tilted to the left and right with respect to the existing side liner plate R1, the assembly side liner plate raised as shown in FIGS. When R is displaced from side to side with respect to the existing liner plate R1, or when the assembly side liner plate R raised as shown in FIG. 11 has an angle in plan view with respect to the existing side liner plate R1. In addition, the case of a composite form thereof may occur.

  Note that the state of FIG. 8 is a case where, for example, there is a depression N (or inclination) on the ground in the tunnel and the traveling carriage 1 is inclined left and right, and the boom axis Y is inclined with respect to the vertical line X. It is. In addition to the inclination of the boom axis Y, the reason why the assembly side liner plate R tilts to the right and left also occurs when the holding means 3 holds a position shifted to the left and right from the center of the ceiling portion of the liner plate R. To do. 9 and 10, the center axis M of the assembly side liner plate R is displaced from side to side in a parallel state in plan view and elevation view with respect to the center axis L of the existing side liner plate R1. It is a case. Furthermore, the state of FIG. 11 is a case where the center axis M of the assembly side liner plate R has an angle (non-parallel) in plan view with respect to the center axis L of the existing side liner plate R1.

  And in the state where these misalignment forms have occurred, both liner plates cannot be bolted over their entire length, so it is necessary to correct the posture and / or position of the assembly side liner plate R. is there.

  Therefore, the liner plate assembling apparatus of this embodiment is provided with posture adjusting means 4 for correcting the above-described positional deviations of the liner plate R raised up in the vertical posture together with the telescopic boom 21.

  As shown in FIGS. 3 and 4 (and FIGS. 12 to 14), the posture adjusting means 4 is configured to receive the liner plate R held by the holding means 3 of the boom tip portion (tip portion of the front boom 21b) 21c. A left and right tilting means 43 that can be tilted to the left and right, a left and right moving means 41 that can be moved to the left and right, and a horizontal turning means that can be swung in a horizontal plane with respect to the boom tip 21c.

  The rotation mechanism serving as the horizontal turning means 42 includes an outer cylinder 42a fixed to the tip surface of the boom tip 21c, and a shaft body 42b fixed to the lower surface of a case body 41a (described later) of the left / right moving means 41. Yes. The axis of the outer cylinder 42a is attached in the same direction as the boom axis direction, and a shaft body 42b is rotatably inserted into the outer cylinder 42a.

  And this horizontal turning means 42 was hold | maintained at the holding means 3 via the left-right moving means 41 in the upper part of the shaft body 42b, when the shaft 42b can rotate horizontally with respect to the outer cylinder 42a in the state where the boom was vertical. The liner plate R can be swung in a horizontal plane.

  The left / right moving mechanism serving as the left / right moving means 41 includes a case body 41a having a considerable length (for example, about 100 cm) on the left and right sides, and a boss portion 41b fixed to the lower surface of the holding base 31 of the holding means 3 so as to protrude downward. And a long screw rod 41c installed in the case body 41a in the length direction of the case body, and a handle 41d for rotating the screw rod 41c.

  The boss portion 41b is inserted into the case body 41a from the upper surface side of the case body 41a and is screwed into the screw rod 41c.

  The handle 41d is attached to the lower surface side of the case body 41a. When the handle 41d is rotated, the screw rod 41c can be rotated via the bevel gear 41e. Then, when the handle 41d is rotated to the right, the boss portion 41b (which is screwed to the screw rod 41c) can be moved to the left in FIG. 3, while when the handle 41d is rotated to the left, the boss portion 41b can be moved to the right. It is like that. In addition, the left-right movement length of the boss | hub part 41b with respect to the case body 41a may be able to move this boss | hub part 41b about 30-35 cm each from the center position of the case body 41a, for example.

  The holding base 31 of the holding means 3 is fixed to the upper part of the boss portion 41b. Therefore, the liner plate R can be moved in the left-right horizontal direction together with the holding means 3 above the boss 41b by moving the boss 41b to the left and right via the screw rod 41c by the handle 41d.

  The left / right tilt mechanism serving as the left / right tilt means 43 includes two left and right rollers 43a and 43a that are respectively provided so as to be able to roll at positions closer to both ends in the length direction of the holding base 31 of the holding means 3. Each of the rollers 43a and 43a is mounted at a position with a considerable distance (for example, an interval of about 90 cm) on the left and right sides of the upper surface of the holding table 31 between the two guide plates 32 and 32 facing each other. .

  The left / right tilting means 43 functions as follows. That is, as shown in FIG. 12, in the state where the liner plate R is held by the holding means 3 of the boom tip portion 21c and is raised in the vertical position, the liner plate is set by the left and right rollers 43a and 43a provided on the holding base 31. Two locations having a space between the lower surfaces of the reinforcing portions Q of the R are supported. In this state, the lower surfaces of the reinforcing portions Q are simply placed on the two rollers 43a and 43a, and Since each roller 43a, 43a rolls with frictional force, the entire liner plate R can move in the left-right direction (A or B direction) with respect to each roller 43a, 43a. Then, as shown in FIG. 8, in the state where the liner plate R (shown by a chain line) is suspended by the holding means 3 of the telescopic boom 21, the leg Rb of the liner plate R is swung left and right. Accordingly, in FIG. 12, the ceiling portion Qc of the reinforcing portion Q of the liner plate R moves left and right (in the direction of arrow A or B) while being in contact with the rollers 43a and 43a. Then, for example, the posture of the liner plate R in the posture shown by the chain line in FIG. 8 can be swung to the left or right, thereby changing the central axis of the liner plate R to the vertical posture.

  In this embodiment, as the left and right tilting means 43, the left and right rollers 43a and 43a are attached to the holding base 31 portion of the holding means 3 as described above. As long as the liner plate R raised in the vertical posture together with the telescopic boom 21 is supported in a suspended state, the liner plate R can be supported so that it can be swung left and right. . For example, the holding base 31 of the holding means 3 is pivotally supported with respect to the case body 41a by a single axis oriented in the front-rear horizontal direction, and the inclination of the holding base 31 is adjusted between the holding base 31 and the case body 41a. A device provided with appropriate tilting means (for example, a handle type) can be employed.

  In this embodiment, two work boards 6 for boarding workers are installed on the left and right sides of the undulating surface of the telescopic boom 21. Each of the work tables 6 and 6 is obtained by attaching a handrail fence 62 on a rectangular base plate 61 having a predetermined area.

  The work tables 6 and 6 can be moved up and down by a lifting device 7 and 7 within a predetermined height range. As the lifting device 7, two hydraulic cylinders are used for each base plate 61 and 61, respectively.

  The height of the upper surface of the base plate 61 is, for example, about 160 to 170 cm from the ground at the lowest movement position of the work table 6, and the base plate is at the highest movement position of the work table 6 (position 6 'in FIG. 7). Is designed to be about 260-270 cm in height. It should be noted that a ladder made of a different material can be used when an operator gets on and off the work table 6.

  Further, in the assembled state of the work platforms 6 and 6, the width between the outer ends of the left and right work platforms 6 and 6 shown in FIGS. 7 and 8 is considerably larger than the width of the truck bed for transport ( Public roads cannot be transported when the platform is assembled.) Therefore, in this embodiment, the work tables 6 and 6 can be separated from the upper ends of the lifting devices (hydraulic cylinders) 7 and 7 at the base plate 61 portion, and this liner plate assembling device is conveyed by a truck. In doing so, each of the work tables 6 and 6 can be removed from the traveling carriage 1 and sent separately. In another embodiment, instead of making the work tables 6 and 6 separable, for example, the left and right protruding widths of the work tables 6 and 6 are reduced in FIG. On the other hand, the entire work table 6 can be slid to the left and right sides, or the base plates 61 and 61 of the work tables 6 and 6 can be folded in left and right directions, respectively. Then, when the work at the outer position is necessary, the outside protrusion width of the work table 6 may be increased.

  In this embodiment, in addition to the above-described components, a self-loading / unloading device 8 is provided so that the liner plate assembling device can be loaded / unloaded on a truck bed by itself.

  This self-loading / unloading device 8 is provided on the carriage 11 of the traveling carriage 1, and the lower end of the traveling carriage 1 (the lower surfaces of the wheels 12, 13) is positioned higher than the height of the loading platform 91 of the truck 9 as shown in FIG. .., And a pair of jacks 81, 81 opposed to the left and right of each of the jacks 81, 81... Can be accommodated within the width of the truck bed 91 (see FIG. 15 (A)) and a slide device 82, 82 that can be moved in and out between the position across the width of the truck bed 91 (state of FIG. 15 (C)).

  When the liner plate assembling apparatus is loaded on the truck bed 91 by the self-loading / unloading apparatus 8, the work tables 6 and 6 are moved from the traveling carriage 1 as shown in FIGS. Remove it.

  The self-loading / unloading device 8 functions as follows. That is, in the contracted state of the slide devices 82 and 82 shown in FIG. 15A, the jacks 81 and 81 are within the lateral width of the traveling carriage 1 (does not protrude from the truck bed width). It can be loaded on the road and run on public roads. On the other hand, when the liner plate assembling apparatus is loaded on the truck bed by itself, as shown in FIG. 15 (B), the left and right slide apparatuses 82 and 82 are projected outward from the state shown in FIG. 15 (A). Then, as shown in FIG. 15C, each of the four jacks 81, 81,... Is extended so that the lower side of the traveling carriage 1 is higher than the height of the loading platform 91 of the truck 9 and the loading platform 91 of the truck 9. A space wider than the width is secured, and in this state, the truck bed 91 is moved into the space below the traveling carriage 1 by a backward operation, and then the jacks 81, 81,. ., 13, 13 are placed on the upper surface of the truck bed 91, and then the liner plate assembling device can be loaded on the truck bed 91 by itself by reducing the slide devices 82, 82. When the liner plate assembling apparatus is lowered from the truck bed to the ground, the work may be performed in the reverse order of the above loading work.

  Next, a detailed method of using the liner plate assembling apparatus of this embodiment will be described. This liner plate assembling apparatus sequentially assembles a number of liner plates R in the tunnel T as shown in FIGS. It is for building a tunnel lining body. 5 and 6, the left side is the tunnel back side (front side) and the right side is the tunnel entrance side (rear side), and the liner plates R are sequentially arranged in parallel from the tunnel back side. . Further, in this embodiment, a liner plate R having a ceiling portion Rb bent in an arch shape is employed, but in another embodiment, a portal-shaped liner plate having a linear ceiling portion is employed. It is also possible.

  In order to install the liner plate R in the tunnel T, first, on the ground in the tunnel T, the liner plate R as shown in FIG. At that time, as shown in FIG. 5, the liner plate assembling apparatus is positioned on the front side (back side of the tunnel) with respect to the liner plate R assembled in the tunnel, and the liner plate R is located on the rear side of the ceiling Rc. Assemble in a posture facing the (entrance side of the tunnel).

  Next, the traveling carriage 1 is moved in a posture in which the telescopic boom 21 is laid down and contracted, and the holding means 3 at the distal end of the telescopic boom 21 is laid down in the vicinity of the ceiling portion Rc of the liner plate R. Move closer to. At this time, as shown in FIGS. 2 and 5, the axis of the telescopic boom 21 coincides with the center line passing through the center of the ceiling part Rc of the liner plate R, and the holding means 3 of the boom tip part is in the horizontal posture in the vertical direction. It is preferable to adjust so that the height of the holding portion between the guide plates 32 and 32 is the same position as the height of the reinforcing portion Q of the liner plate ceiling portion.

  1 and FIG. 2 (and FIG. 5), the telescopic boom 21 is extended from the state indicated by the solid line, and the liner between the upper and lower guide plates 32, 32 of the holding means 3 is shown in FIG. 3 and FIG. The bottom part of the reinforcing part Q of the plate ceiling part is inserted. In this state, the holding means 3 is in the state indicated by the chain lines in FIG. 1, FIG. 2 and FIG. In this state, as shown in FIGS. 3 and 4, the bottom portion of the reinforcing portion Q of the liner plate R is fitted between the upper and lower guide plates 32, 32 of the holding means 3 and provided on the holding stand 31. The left and right rollers 43a, 43a are in contact with the bottom surface of the reinforcing portion Q of the liner plate R, respectively.

  Next, when the telescopic boom 21 is lifted from this state, the holding means 3 moves upward from the state of FIG. 4, so that the protruding pin 33 first has the upper surface of the outward protruding piece Qa on the lower side of the reinforcing portion Q. The side (right side) is guarded, and the reinforcing portion Q is not inadvertently detached from the holding means 3 during the subsequent boom raising operation.

  When the telescopic boom 21 is raised to the vertical posture shown by the chain line in FIG. 1 (reference numeral 21 '), the liner plate R' is suspended in the vertical posture and suspended from the ground by the holding means 3 at the upper end of the telescopic boom 21. Support in the state.

  Subsequently, as described above, when the raised liner plate R ′ is the first (first), it is installed (fixed) at the head position of the tunnel lining body to be constructed, and the raised When the liner plate R ′ is the second or later one (assembly side liner plate), the assembly side liner plate R is already installed with the telescopic boom 21 suspended as shown by an arrow H in FIG. Next, the telescopic boom 21 is contracted to lower the assembly side liner plate R to the same height as the existing side liner plate R1, and the posture adjusting means 4 (left and right moving means) 41, the horizontal turning means 42, the left-right tilting means 43, etc.) accurately align the joining end face of the assembly side liner plate R with the joining end face of the existing side liner plate R.

  By the way, when the joining end surface of the assembly side liner plate R is brought close to (alignment) with the joining end surface of the existing side liner plate R1, for example, the assembly side liner plate R raised as shown in FIG. When tilted to the left and right with respect to the liner plate R1, or when the assembly side liner plate R raised as shown in FIGS. 9 and 10 is displaced to the left and right with respect to the existing side liner plate R1. In addition, as shown in FIG. 11, the assembly side liner plate R that is raised may have an angle with respect to the existing side liner plate R <b> 1 in a plan view, or may be a composite form thereof.

  For example, when the assembly side liner plate R is tilted and displaced to the left and right with respect to the existing side liner plate R1, as shown in FIG. 8, the assembly side liner plate R is suspended in the air in the suspended state. When the worker presses the portion Rb in the tilt correction direction (leftward in the case of FIG. 8), the ceiling portion of the liner plate R supported by the rollers 43a and 43a becomes the curved surface of the lower surface of the ceiling portion of the reinforcing portion Q. Along the left or right side (in the case of FIG. 8, the arrow B side). Then, the left and right legs Rb, Rb of the assembly side liner plate R are swung until the left and right legs Rb, Rb are oriented in the vertical direction. It is confirmed whether the right and left leg portions of the liner plate R1 are parallel to each other when viewed from the tunnel entrance side. In this case, it is often the case that the assembly side liner plate R is not completely overlapped with the existing side liner plate R1 simply by pushing the leg portion Rb in the left-right direction with the assembly side liner plate R suspended. However, if the posture of the assembly side liner plate R is the same as the posture of the existing side liner plate R1, the telescopic boom 21 is adjusted up and down by extension and the left and right moving means 41 and the horizontal swiveling means 42 to be described next. The posture of the assembly side liner plate R is adjusted by the above.

  In the state where the liner plate is aligned with the position of R ′ in FIG. 6, the assembly side liner plate R is displaced from side to side with respect to the existing side liner plate R1 as shown in FIGS. (In the illustrated example, the axis M is displaced to the right with respect to the axis L), the work table 6 is moved up as shown by the chain line in FIG. 'The handle 41d of the left / right moving means 41 is rotated in a predetermined direction from above. To correct the misalignment in FIGS. 9 and 10, as shown in FIG. 13, the handle 41d is rotated in the direction in which the holding means 3 moves to the left with respect to the boom tip 21c, and the holding means is moved. Move horizontally to the position indicated by reference numeral 3 '. At this time, the holding base is at the position 31 ', the liner plate is at the position R', and the assembly side liner plate R is extended from the position shown by the chain line in FIG. 10 to the full length with respect to the existing side liner plate R1. It can be moved to a position where it is completely polymerized.

  Further, in FIG. 6, the assembly side liner plate R has an angle in plan view with respect to the existing side liner plate R1 as shown in FIG. In the case where the axis line M is inclined with respect to the axis line L), the leg portion of the assembly side liner plate R which is separated from the existing side liner plate R1 is pressed against the existing side liner plate R1 side. 14, the shaft body 42b of the horizontal turning means 42 can be horizontally rotated with respect to the outer cylinder 42a, thereby correcting the deviation of the angle of the assembly side liner plate R with respect to the existing side liner plate R1. it can.

  And after adjusting the attitude | position and position of the assembly side liner plate R correctly with respect to the existing side liner plate R1, as shown in FIG. 7, the junction part of the existing side liner plate R1 and the assembly side liner plate R The bolts can be connected by bolts on the work table 6 that the worker can perform from the ground at the low height position and lowered at the intermediate height position. Since it can be carried out by riding on the raised work table 6 'at the height position, it can be performed in a stable working posture (safe and efficient).

  Then, after the assembly side liner plate R is bolted to the existing side liner plate R1, holding of the liner plate ceiling portion Rc by the holding means 3 is released. In this case, the telescopic boom 21 is slightly moved from the state of FIG. If the projecting pin 33 is removed from the overlapping position with respect to the outward projecting piece Qa of the reinforcing portion Q and the telescopic boom 21 is subsequently reduced, the traveling cart 1 is moved down. Can be moved. Then, in the same manner, the required length of the tunnel lining body S can be completed by assembling the necessary number of liner plates R to the existing liner plate.

The liner plate assembling apparatus of this embodiment has the following various functions. (1) When this liner plate assembling apparatus is used, the operation of joining the assembling side liner plate R to the existing side liner plate R1 can be performed efficiently and safely by a small number of people.
(2) The liner plate R can be erected by the erection device 2, so that even a heavy liner plate to be assembled can be erected, and the liner plate that can be implemented in one erection operation is wide (weight) The construction efficiency (speed) of the tunnel lining body by the liner plate is good.

  (3) Since the liner plate R can be raised from the space on the lower surface side, the mechanical liner plate cannot be Assembly work can be performed.

  (4) Since the posture adjusting means 4 (the left / right tilting means 43, the left / right moving means 41, and the horizontal turning means 42) is provided, the existing side liner plate R1 with the assembly side liner plate R raised in the vertical position. In contrast, the degree of right / left inclination, the degree of right / left alignment (overlapping), the degree of joining of facing portions, etc. can be easily adjusted, and the assembly side liner plate R can be accurately positioned with respect to the existing side liner plate R1. And can be joined in a posture. This means that the connecting operation (bolting operation) of both liner plates R and R1 can be easily performed.

  (5) Since the self-propelled traveling carriage 1 is adopted as the base, the liner plate assembling apparatus can be moved by itself, and the assembly side liner plate is aligned with the existing side liner plate. It can also be used for front-rear position adjustment.

  (6) Since the telescopic boom 21 that can be extended and contracted is adopted as a boom, it can be applied to a plurality of liner plates having different heights with one liner plate assembling device, and the height can be adjusted when aligning the liner plates. Can also be used.

  (7) Since the work table 6 is provided at a predetermined height on the base (traveling carriage), the auxiliary support by the hand during the raising operation of the assembly side liner plate R and the liner after the liner plate is raised The plate R posture adjustment work and the bolting work after joining both liner plates R and R1 can be done from the work table 6, so both hands can be used for these work (easy to work) and the feet are stable. So you can work safely.

  (8) Since the work table 6 can be moved up and down by the elevating device 7, it can be reached from the work table 6 over a fairly wide range (upper working area on the work table 6 is widened).

  (9) Since the liner plate assembling device is provided with a self-loading / unloading device 8 that can be loaded / unloaded by itself on the truck bed, the liner plate assembling device can be loaded / unloaded on the truck bed by itself. . This means that it is not necessary to prepare another loading / unloading device (for example, another crane) during transportation.

  DESCRIPTION OF SYMBOLS 1 is a base (traveling trolley), 2 is a raising device, 3 is a holding means, 4 is a posture adjusting means, 6 is a work table, 7 is a lifting device, 8 is a self-loading / unloading device, 21 is a boom (extensible boom) 21c is a boom tip, 22 is a hoisting means (raising cylinder), 31 is a holding base, 32 is a guide plate, 33 is a protruding pin, 41 is a left / right moving means, 42 is a horizontal turning means, 43 is a left / right tilting means, 43a Is a roller, 81 is a jack, 82 is a slide device, R is an assembly side liner plate, R1 is an existing side liner plate, and Q is a reinforcing portion.

Claims (7)

Liner plate for lining up the arched or gate-shaped liner plate to form a tunnel-shaped void inside from the horizontal position to the vertical position and joining the raised liner plate to the existing liner plate An assembly device,
Equipped with a stand up device that can lie from the posture to the vertical posture by lying down the liner plate on the base,
The raising device has a boom that is undulated with respect to the base, a raising and lowering unit that raises and lowers the boom, and a holding unit that can hold a liner plate provided at the tip of the boom. With
A posture adjusting means for joining the liner plate to the existing liner plate in an accurate posture in a state where the liner plate held by the holding device is raised in a vertical posture at the front side of the tip of the boom. Have
A liner plate assembling apparatus. In claim 1,
The attitude adjusting means includes a horizontal tilting means that can tilt the liner plate held by the boom tip holding means to the left and right, a left and right moving means that can move the liner plate to the left and right, and a horizontal that can be swung in a horizontal plane. Swiveling means,
A liner plate assembling apparatus. In claim 1 or 2,
The above base adopts a self-propelled traveling cart,
A liner plate assembling apparatus. In any one of Claim 1 to 3,
The boom employs a telescopic boom that is telescopic,
A liner plate assembling apparatus. In any one of Claims 1-4,
A work table is provided at a predetermined height position on the base,
A liner plate assembling apparatus. In claim 5,
Elevating device for raising and lowering the work table with respect to the base,
A liner plate assembling apparatus. In any one of Claim 1 to 6,
Four jacks that can move the base up to a height at which the truck bed can enter the lower surface of the base are attached to the base.
Each of the jacks is installed so that a pair of jacks facing left and right with respect to the base can protrude and appear between a position that fits inside the truck bed width and a position that straddles the truck bed width. ,
A liner plate assembling apparatus.

Images