JP2015098710A - Liner plate assembly device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liner plate assembly device capable of mechanically raising an arched (or portal) liner plate even in a space where an upper side is limited, such as in a tunnel, and further preventing that each leg part of the liner plate is hung downward by self-weight when raising the liner plate.SOLUTION: A liner plate assembly device is equipped with a raising device 2 capable of raising a liner plate from a fallen-down attitude to a vertical attitude on a base 1. The raising device 2 includes: a boom 21 attached to the base to be freely raised and laid; raising and laying means 22 that raises and lays the boom; and holding means 3 capable of holding the liner plate provided at a tip of the boom. At a base end side position of the boom 21, left and right leg part supports 5, 5 are fixed that have lengths to reach inner surfaces of left and right leg parts of the liner plate of the fallen-down attitude from the boom respectively. At tips of the leg part supports 5, 5, leg holding parts 6, 6 are provided that are capable of holding the inner surfaces of the leg parts of the liner plate to be freely engageable and disengageable respectively.

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 tunnel inner surface 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. 16, first, in the vicinity of the liner plate installation position in the tunnel T, a plurality of segments (made of thin steel plates) Ra, Ra,. A series of liner plates R are formed by assembling (which may be a portal shape). The liner plate R in the illustrated example has an arched ceiling portion Rc at the center, and linear leg portions Rb and Rb are integrally connected to the left and right of the ceiling portion Rc.

  Next, the liner plate R lying down on the ground is erected up to a vertical position as shown by an arrow A (FIG. 16), and the position and posture of the erected liner plate are adjusted to stand up to a predetermined position. Fix (the lower ends of the left and right legs Rb, Rb are bolted onto the left and right mounting tables W, W, respectively). In the following description, the liner plate that is self-supporting and fixed may be referred to as an existing side liner plate.

  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. Then, the joint ends of the existing side liner plate R1 and the assembly side liner plate R ′ are bolted at a plurality of locations in the circumferential direction to connect and fix both liner plates R1 and R ′, and the left and right leg portions Rb. , Rb are bolted to the left and right mounting tables W, W, respectively. 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.

  However, in the work of raising the liner plate by human power, a considerable number of workers (at least 4 to 5 people) are required to raise the liner plate, and the width of one unit of the liner plate is related to the weight. There were various problems that it became narrower (for example, about 50 cm wide) and there was danger in raising the liner plate.

  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 present applicant has already developed a liner plate assembling device that can mechanically construct a tunnel lining body composed of a number of liner plates in an existing tunnel (patent application). 2012-174077).

  As shown in FIGS. 12 and 13, the liner plate assembling apparatus of the already-filed application (unpublished) raises the liner plate R in the lying position to the vertical position (reference R ′) on the chassis 11 of the traveling carriage 1. It is comprised with the standing device 2 which can be.

  The rising device 2 includes a telescopic boom 21, a hoisting cylinder 22 for hoisting the telescopic boom 21, a holding means 3 for holding the ceiling portion Rc of the liner plate R attached to the tip of the boom, and a holding means 3. Posture adjusting means 4 for adjusting the posture of the liner plate R. In the following description, the ceiling portion Rc of the liner plate R may be simply referred to as a plate ceiling portion Rc, and the left and right leg portions Rb of the liner plate R may be simply referred to as a plate leg portion Rb.

  And the liner plate assembly apparatus of FIG.12 and FIG.13 is used as follows. First, in the tunnel (FIG. 16), the liner plate R is laid sideways and assembled in an arch shape, and the traveling carriage 1 is placed between the legs Rb, Rb of the liner plate R (states of FIGS. 12 and 13). ). At this time, the telescopic boom 21 is laid down to the horizontal posture in the most contracted state.

  Next, the telescopic boom 21 is extended and the holding means 3 at the tip of the boom is projected until it reaches the plate ceiling Rc as indicated by reference numeral 3 ', and the plate ceiling Rc is held by the holding means 3'.

  Next, in a state where the plate ceiling portion Rc is held by the holding means 3 ′, the hoisting cylinder 22 is extended to raise the telescopic boom 21 to the vertical posture as shown by reference numeral 21 ′ (FIG. 12). At 2 ', the liner plate can be held in a suspended state in the vertical posture indicated by R'.

  Subsequently, the traveling carriage 1 is moved back and forth, or various adjustments are made by the posture adjusting means 4, and the assembly side liner plate R 'supported by the rising device 2' is installed on the existing side liner plate R1 (FIG. 16). Are joined in a state where the end faces are in full contact with each other. Then, the joint ends of the existing side liner plate R1 and the assembly side liner plate R ′ are respectively bolted together, and the lower ends of the legs Rb ′ and Rb ′ of the assembly side liner plate R ′ are connected to the existing mounting table W. , W to complete the assembly of the assembly side liner plate R ′. Thereafter, the holding means 3 '(FIG. 12) is released, the telescopic boom 21' is contracted, the telescopic boom 21 'is laid down to a horizontal position, and this liner plate assembling apparatus is moved to the next liner plate holding position. Move.

  In this way, if the liner plate assembling apparatus of the existing application (developed) shown in FIGS. 12 and 13 is used, the assembling side liner plate placed on the ground in the lying position is raised to the vertical position, Work up to the side liner plate can be mechanically performed.

  By the way, when the liner plate is laid sideways and raised from the posture to the vertical posture using the liner plate assembling apparatus shown in FIGS. 12 and 13, the following difficulties have been discovered.

  That is, as a first difficulty, in the liner plate assembling apparatus shown in FIGS. 12 and 13, the rising device 2 is raised in a state where the ceiling portion Rc of the liner plate R is held by the holding means 3 of the rising device 2. When waking up, particularly when both the leg portions Rb of the liner plate R are separated from the ground (support) at the initial stage of rising shown in FIG. The tilting force in the direction of arrow B) may occur, and the liner plate R may be slightly out of parallel with the boom 21, but the parallelism may be out of order. When the boom 21 is raised to a vertical posture in a state where the parallelism between the liner plate R and the boom 21 is out of order (state of reference numeral 21 'in FIG. 14), the liner plate is indicated by reference numeral R'. Is raised in a posture exceeding the vertical posture (the plate ceiling portion Rc ′ is the rear side and the plate leg portion Rb ′ is the front side posture), and then the traveling carriage 1 is moved to raise the liner plate R ′ in the standing posture. Is bonded to the existing liner plate R1 as indicated by the symbol R ″. At that time, the bonding surface b of the assembly side liner plate R ″ faces the bonding surface a of the existing side liner plate R1 with a slight angle. (There is a gap between the plate legs with the plate ceilings joined together). As described above, when the joining surface a of the existing side liner plate R1 and the joining surface b of the assembly side liner plate R ″ face each other at an angle, it is difficult to perform the operation of fastening both the liner plates R1 and R ″ with bolts. was there.

  Further, as a second difficulty, as described above, in the initial rising stage shown in FIG. 14, when a sag action (inclination power in the direction of arrow B in FIG. 14) due to its own weight occurs on both legs Rb of the liner plate, the liner An unnatural deformation action (kneading action) acts on the holding means 3 that holds the ceiling portion Rc of the plate. In such a liner plate assembling apparatus that works to knead the holding means 3 portion of the plate ceiling portion Rc, the durability of the holding means 3 portion is deteriorated and the rigidity of the holding means 3 portion needs to be increased. Therefore, there is a problem that the entire liner plate assembling apparatus is increased in weight and cost.

  Further, as a third difficulty, when only the ceiling portion Rc of the liner plate R is held by the holding means 3 of the rising device 2 and the liner plate R is supported in a suspended state in a vertical posture, as shown in FIG. Each of the left and right plate legs Rb, Rb bends inward due to its own weight (shown by the solid line in FIG. 15), and the lower ends of the plate legs Rb, Rb are positioned directly above the left and right mounting tables W, W. Each will be displaced inward. In order to fix the lower ends of the plate leg portions Rb and Rb on the mounting tables W and W, respectively, the plate leg portions Rb and Rb are respectively outwardly indicated by chain lines (reference numerals Rb ′ and Rb ′). It was necessary to spread it out, but the leg spreading work was quite troublesome. That is, in order to fix the plate leg portions Rb and Rb on the mounting tables W and W, respectively, the plate leg portions Rb are spread outwardly as indicated by the symbol Rb ′ by the manual force of the worker, and the plate leg portions Rb. The lower end of ′ is placed at an accurate position on the mounting table W (the telescopic boom 21 is reduced), and the lower end of the plate leg Rb ′ is bolted to the mounting table W. Each plate leg Rb ′ , Rb ′ until the lower ends of the plates are fastened to the mounting table W by an operator, it is necessary to keep the plate legs Rb ′, Rb ′ expanded in the correct positions. The posture maintenance work for the leg Rb ′ is troublesome.

  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 at the time of raising the liner plate The main object of the present invention is to provide a liner plate assembling apparatus which can prevent the legs of the liner plate from hanging down under its own weight.

  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.

  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. It includes a range that deviates. In the description of the present application, the ceiling portion of the liner plate is sometimes simply referred to as a plate ceiling portion, and the left and right leg portions of the liner plate are simply referred to as plate leg portions.

[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 upright device can hold the ceiling portion of the liner plate provided at a telescopic boom attached to the base so as to be raised and lowered, a raising and lowering means for raising and lowering the boom, and a tip of the boom. Holding means. Note that the boom is obtained by extending and retracting at least one front boom to the base boom, and the front boom can be expanded and contracted by a telescopic cylinder built in the boom.

  The boom (base boom) near the base end has a length that reaches the inner surfaces of the left and right leg portions of the liner plate in a lying position while the boom and the liner plate are both in a lying position. The left and right leg support supports are fixed.

  A leg portion holding portion capable of detachably holding the inner surface of each leg portion of the liner plate is provided at each tip portion of the left and right leg portion support supports.

  And each said leg part support support hold | maintains the ceiling part of the liner plate of a horizontal position with the holding means of the said standing apparatus, and each leg part of a liner plate is hold | maintained with each said leg part holding part, and this liner plate It is characterized by having a rigidity capable of supporting the legs so as not to be deformed downward with respect to the ceiling by the load of the legs in a support state where the suspension is lifted from the ground.

  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).

  After that, the base is moved to a predetermined position with the boom fully contracted. At that time, the boom axis overlaps with the center line of the tunnel width (width center line of the lining body to be constructed) in plan view. Keep it in the position. Then, from that state, the boom is slightly extended, and the center of the ceiling part (plate ceiling part) of the liner plate in the posture of lying down is held by the holding means at the tip of the boom, and at the same time, the left and right leg part support is supported. The inner surfaces of the respective leg portions (plate leg portions) of the liner plate are held by the respective leg portion holding portions provided at the respective front end portions.

  Next, with the plate ceiling portion held by the holding means and the plate leg portions held by the leg holding portions as described above, 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 up to the vertical posture with the boom.

  By the way, at the initial stage of raising the liner plate, when the plate ceiling is lifted in an arc-rotating manner, both the plate legs are separated from the ground (ground cutting) in a state where the liner plate lies sideways and close to the posture. When both the plate leg portions are in a free state (unsupported state), an action occurs in which each plate leg portion hangs downward with respect to the plate ceiling portion (held by the holding means) due to its own weight. And, when the hanging action occurs in each plate leg in this way, the parallelism of the liner plate with respect to the boom may be out of order (which makes it troublesome to fasten the liner plates to each other), and the plate ceiling part Since an unnatural deformation action (kneading action) acts on the holding means portion holding the metal, it is not preferable.

  Therefore, in the liner plate assembling apparatus according to the first aspect of the present invention, the left and right plate leg portions can be supported by the respective leg portion support supports extending from the base end position of the boom to the left and right. When holding the plate ceiling by the holding means and raising the liner plate, if each plate leg is also supported by each leg support support, each plate leg is the plate ceiling (holding means portion) Will not sag against.

[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 each of the leg support supports includes a frame material extending outward from the base end of the boom, and a frame material of the frame material. And a swing link that is pivotally supported by a pin at the distal end and provided with the leg engaging portion at the outer end, and the swing link is connected to the distal end of the frame member. The boom is mounted in such a state that it can be swung only in a horizontal plane without being displaced downward in a posture in which the boom is laid down to a horizontal posture.

[Invention of claim 3 of the present application]
The invention according to claim 3 of the present application is the link swinging mechanism capable of adjusting the swinging position of the swinging link between the frame member and the swinging link in an adjustable manner in the liner plate assembling apparatus of the second aspect. It is characterized by providing position adjusting means.

[Invention of claim 4 of the present application]
The invention of claim 4 of the present application uses the liner plate according to any one of claims 1 to 3 provided with an inward protruding portion that protrudes inward on the inner surface of each plate leg, The leg engaging portion is provided with a hook portion that engages the inwardly projecting portion from below in a posture in which the boom is laid down to a horizontal posture.

[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 claim 4, a slide plate for sliding the inwardly protruding portion of the liner plate is provided in the hook portion.

[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 enables the liner plate arranged in a lying position in the vicinity of the existing liner plate in the tunnel to be raised to the vertical position by the standing device. Is.

  Therefore, the liner plate assembling apparatus according to the first aspect has an effect that the operation of joining the liner plate on the assembly side to the liner plate on the existing side 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.

  Furthermore, in the liner plate assembling apparatus according to the first aspect, the liner plate can be raised from the space on the lower surface side (the space between both plate legs), so that there is a restriction on the upper side, for example, in a tunnel. Even in a certain lining body construction site, there is an effect that a mechanical liner plate can be assembled.

  Further, in the liner plate assembling apparatus according to the first aspect, when the liner plate is laid sideways and raised from the posture to the vertical posture while holding the plate ceiling portion, both plate legs are supported by the leg portions in the liner plate laid posture. Since the liner plate can be raised while being supported by, the action of both plate legs hanging down (kneading) from the plate ceiling does not occur.

  Therefore, since the liner plate can be raised while maintaining a parallel state with respect to the boom, when the boom is raised to a vertical posture, the liner plate also becomes a vertical posture, and the joining surface of the assembly side liner plate is changed. There is an effect that it can be brought into contact with the joint surface of the existing liner plate while maintaining a high degree of parallelism (the subsequent bolt fastening operation becomes easy).

  Further, when the liner plate is raised, there is no action of the two plate legs hanging down (kneading) with respect to the plate ceiling as described above, so an excessive burden is placed on the holding means portion of the plate ceiling in the rising device. In addition, there is no need to increase the rigidity of the holding means so that the weight can be reduced and the cost can be reduced.

  Further, in the posture in which the liner plate is raised in the vertical posture by the standing device, each plate leg is bent inward by its own weight, and each leg support is compressed inward. Although the action occurs, there is a tension action by each leg support for each plate leg, so even if the liner plate is raised in a vertical position, each plate leg is bent inward by its own weight. Can be prevented. This has an effect of facilitating the alignment work when positioning each leg portion of the liner plate on each existing mounting table (a pair of left and right).

[Effect of the 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 each leg portion support support is configured such that a swing link is pivotally added to the tip end portion of the frame material. In addition to the effect of item 1, the following effect is obtained.

  First, by swinging the swing link, the overall length of each leg support can be adjusted according to the distance between the boom and the plate leg. There is an effect that it can be applied to various liner plates with different (intervals).

  Further, in the posture in which the liner plate is raised to the vertical posture by the standing device, each leg support is inwardly caused by the inward bending action of each plate leg due to its own weight as described above. Although the action of being compressed occurs, when releasing the support by each leg support for each plate leg, the support can be easily released by swinging the swing link to the width reduction side. There is an effect.

  In the liner plate assembling apparatus according to claim 2, the swing link swings only in a horizontal plane without being displaced downward in a posture in which the boom is lowered to a horizontal posture with respect to the tip end portion of the frame material. Since it is mounted in a movable state, even if a swing link is added to the tip of the frame material as a leg support, there is an effect that each plate leg can be supported without any trouble.

[Effect of the invention of claim 3 of the present application]
In the invention of claim 3 of the present application, in the liner plate assembling apparatus of claim 2, link swing position adjusting means capable of adjusting the swing position of the swing link is provided. In addition to the effects, the overall length of each leg support can be easily adjusted according to the distance between the left and right plate legs, and the support release operation (the operation of swinging the swing link to the width reduction side) ) Is also easy to perform.

[Effect of the invention of claim 4 of the present application]
The invention according to claim 4 of the present application is the liner plate assembling apparatus according to any one of claims 1 to 3, wherein the inwardly protruding portion (on the inner surface of the leg portion) of the liner plate in the lying position is provided at the leg engaging portion. ) Is provided with a hook portion that engages from below, so that in addition to the effects of the first to third aspects, the leg inner surface can be reliably held by the leg holding portion.

[Effect of the invention of claim 5 of the present application]
According to the invention of claim 5 of the present application, in the liner plate assembling apparatus of claim 4, the slide plate for sliding the inwardly protruding portion of the liner plate is provided in the hooking portion. Thus, when the boom is reduced from the state where the liner plate is suspended in a vertical posture by the standing device and the liner plate is lowered, the inwardly projecting portion can be smoothly slid with respect to the hook portion. There is an effect that can be done.

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. 5 is an enlarged view taken along the line VV in FIG. 2, and is an explanatory view showing a state in which the leg portion of the liner plate in a lying position is supported by a leg portion support support. It is explanatory drawing in the state (VI arrow state of FIG. 1) which raised the liner plate by the liner plate assembly | attachment apparatus of this-application Example, and was suspended in the air. It is the VII section enlarged view of FIG. It is explanatory drawing of the state which lowered the liner plate from the liner plate suspended state of FIG. FIG. 9 is a change view from FIG. 8 and is an explanatory diagram for making the liner plate assembling device movable. It is a perspective view of the liner plate made into object in the example of this application. It is XI-XI expanded sectional drawing of FIG. It is a side view of the liner plate assembling apparatus concerning the already filed application (unpublished) of the present applicant. It is a top view of the liner plate assembly apparatus of FIG. It is explanatory drawing of the problem at the time of liner plate standing start operation in the liner plate assembling apparatus of FIG. 12, and after standing up. It is explanatory drawing of the problem in the liner plate standing posture (equivalent to the XV-XV arrow of FIG. 12) in the liner plate assembly | attachment apparatus 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. 1 to 11 (and FIG. 16).

  As the liner plate R handled by the liner plate assembling apparatus of this embodiment, a liner plate assembled in a wide state as shown in FIGS. 10 and 11 is used. 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.

  For example, as shown in FIG. 16, the liner plate R includes each plate-like body constituting the plate material portion P on the ground in a place where the tunnel-like lining body S is to be constructed (in this embodiment, 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. Each plate-like body that becomes the plate material portion P and each H-shaped steel that becomes the reinforcing portion Q are connected by bolts V (FIG. 11) as shown in FIGS. It is assembled to a wide liner plate R in which one row of reinforcing portions Q is interposed between P and P.

  The liner plate R in FIG. 10 is configured by linear leg portions Rb and Rb being continuous to the left and right sides of the arched ceiling portion Rc. In the following description of the embodiments, the ceiling portion Rc of the liner plate R may be simply referred to as a plate ceiling portion Rc, and the left and right leg portions Rb of the liner plate R may be simply referred to as a plate leg portion Rb. .

  The size of the liner plate R (in FIG. 10) used in this embodiment is not particularly limited, but the distance D between the left and right plate legs Rb and Rb is 450 to 550 cm, and the plate ceiling A material having a height E to the portion Rc of 400 to 500 cm and a width F in the depth direction of about 80 to 100 cm can be used.

  Further, in this liner plate R, as shown in FIG. 11, the inner and outer thickness of the reinforcing portion (H-shaped steel) Q is larger than the inner and outer thickness of the plate material portion P, and the inner surface side of the reinforcing portion Q (in FIG. 11). The left side surface) protrudes inward slightly from the inner surface of the plate member P to form an inward protruding portion Qa. In addition, this inward protrusion part Qa becomes an inward protrusion part in this-application Claim 4.

  As shown in FIGS. 1 to 2, the liner plate assembling apparatus according to this embodiment vertically moves a self-propelled traveling carriage 1 and a liner plate R that is attached to the chassis 11 of the traveling carriage 1 in a lying position. And an uprising device 2 that stands up to a posture. 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 attached to the carriage 11 of the traveling carriage 1, raising cylinders 22 and 22 for raising and lowering the boom 21, and holding for holding a liner plate attached to the tip of the boom. 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 the following description, the telescopic boom in the claims is called the telescopic boom 21, and the hoisting means in the claims is also called the hoisting cylinder 22.

  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. A pair of hoisting cylinders 22, 22 that are attached so as to be able to fall down is provided on the left and right sides of the base boom 21 a.

  In the contracted state of the hoisting cylinders 22, 22, the telescopic boom 21 lies down to a substantially horizontal posture with the boom tip side facing the rear as shown in FIGS. 1 and 2, while the hoisting cylinders 22, 22 extend. In the state, it is raised 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 tip of the boom via the attitude adjusting means 4 (the horizontal turning means 42 and the left / right moving means 41). 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 FIGS. 3 and 4) at a predetermined interval (for example, 15 to 20 cm) in a direction perpendicular to the length direction of the holding table (up and down direction in FIG. 4). It is a thing. 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.

  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 projecting 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, and the bottom projecting piece Qa of the reinforcing portion Q. Can be taken in and out between the projecting pin 33 and the roller 43a. In order to hold the bottom projecting piece Qa of the reinforcing part Q between the projecting pin 33 and the roller 43a, it is actuated to the side where the telescopic boom 21 is raised in the state of FIG. 4 (arrow C in FIG. 4). Yes.

  Each of the projecting pins 33 and 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 inserted between the projecting pin 33 and the roller 43a. In the state), the outside of the bottom protruding piece Qa of the reinforcing portion Q can be guarded, thereby having a function of preventing the liner plate R from being accidentally dropped from the holding means 3.

  As shown in FIGS. 3 and 4, the posture adjusting means 4 tilts the liner plate R held by the holding means 3 at the tip of the boom (the tip of the front boom 21b) to the left and right with respect to the tip of the boom. A horizontal tilting means 43 that can be moved left and right, and a horizontal swinging means 42 that can be swung in a horizontal plane. The posture adjusting means 4 (left / right tilting means 43, left / right moving means 41, and horizontal turning means 42) is not included in the main configuration of the present invention, and thus detailed description thereof is omitted.

  The liner plate assembling apparatus of this embodiment includes a leg support support 5 for preventing the plate leg Rb from hanging down with respect to the plate ceiling Rc by its own weight when the liner plate R is raised. 5 is attached. As shown in FIGS. 1 and 2 and FIGS. 5 to 9, the leg support supports 5 and 5 extend from the position near the base end of the base boom 21 a of the telescopic boom 21 to the left and right outer sides in the horizontal direction. It is installed in a state.

  As shown in FIG. 2, each of the leg support 5 and 5 has a configuration corresponding to claim 1 in a state where the telescopic boom 21 and the liner plate R are both lying down, that is, the telescopic boom 21 is laid sideways. The left and right (upper and lower in FIG. 2) plate legs Rb, Rb from the position near the base end of the base boom 21a in a state where the liner plate R is positioned in the center between the left and right legs Rb, Rb in the posture. It has a length that reaches the inner surface. Further, leg holding parts 6 and 6 for holding the inner surfaces of the left and right plate leg parts Rb and Rb in a freely detachable manner are provided at the respective distal end parts of the leg support supports 5 and 5. The structure of the leg holder 6 will be described in detail later.

  In this embodiment, as shown in FIGS. 2 and 5 (enlarged illustration), the leg support supports 5 and 5 are positioned closer to the base end of the base boom 21a. Frame member 51 extending to the left and right outside, and a swing link 52 pivotally supported at the tip of the frame member 51 so as to be swingable. In this case, the leg holding portion 6 is provided at the outer end 52 a of the swing link 52.

  Each frame member 51, 51 is fixedly attached to a holding body 50 whose base end portion is fixed at a position near the base end of the base boom 21a. As in this embodiment, one continuous long material is used as each of the frame members 51, 51, and an intermediate position of the long material is fixed to the holding body 50, and the left and right extension of the long material is performed. If the protruding portions are frame members 51 and 51, respectively, the attachment rigidity of both the frame members 51 and 51 can be increased.

  Each swing link 52, 52 is pivotally supported by a pin 53 at the end 51 a of the frame member 51 at an intermediate position in the longitudinal direction. Further, the pins 53, 53 pivotally supporting the swing links 52, 52 are arranged so that the swing links 52 are attached to the frame material 51 in a posture (FIGS. 1 to 2) in which the telescopic boom 21 is laid down to a horizontal posture. On the other hand, it is mounted in such a state that it can swing only in a horizontal plane without being displaced downward. That is, in the posture in which the telescopic boom 21 is laid down to the horizontal posture, the swing link 52 can be swung only in a horizontal plane by using the pin 53 in a posture to face up and down as shown in FIG. Yes.

  Further, in this embodiment, as a configuration corresponding to claim 3 of the present application, each of the leg support supports 5 and 5 has a swing position of the swing link 52 between the frame member 51 and the swing link 52. Is provided with link swing position adjusting means 7 that can be fixed in an adjustable manner.

  In this embodiment, the link swing position adjusting means 7 is configured such that the frame member 51 and the inner end 52b of the swing link 52 are connected by a telescopic cylinder 71.

  When the telescopic cylinder 71 is contracted, the link swing position adjusting means 7 protrudes outward from the leg holding portion 6 provided at the outer end of the swing link 52 as shown in FIGS. While the width can be increased, when the telescopic cylinder 71 is extended, the outward projecting width of the leg holding portion 6 provided at the outer end of the swing link 52 can be reduced as shown in FIG. It has become.

  In this embodiment, the telescopic cylinder 71 of the link swing position adjusting means 7 is installed on the upper surface side of the frame material 51 in the standing posture of the boom 21 shown in FIG. The telescopic cylinder 71 may be used to push and pull the outer end 52a (see FIG. 2) side of the swing link 52. In that case, when the telescopic cylinder 71 is extended, the outward projecting width of the leg holder 6 can be increased, while when the telescopic cylinder 71 is contracted, the outward projecting width of the leg retainer 6 can be decreased. .

  In other embodiments, the link swing position adjusting means 7 can be replaced by the lever block instead of the telescopic cylinder 71 so that the inner end 52b of the swing link 52 can be pulled, or a screw type. (For example, a turnbuckle) that can push and pull the inner end 52b of the swing link 52 may be adopted.

  Further, in this embodiment, as a configuration corresponding to claim 4 of the present application, an inward projecting portion projecting inward is provided on the inner surface of each of the leg portions Rb, Rb of the liner plate R, while the leg holding portion 6 is provided. A hook 61 that engages the inwardly projecting portion from below in a posture in which the telescopic boom 21 is laid down to a horizontal posture is provided.

  That is, in this embodiment, as shown in an enlarged view in FIG. 5, the inner side protruding piece Qa of the reinforcing portion Q at the center of the width of the liner plate is used as an inward protruding portion provided on the leg portion Rb of the liner plate R. On the other hand, as the hook portion 61 provided on the leg holding portion 6, a concave portion having an upward opening that receives the inwardly projecting portion (lower projecting piece Qa on the inner surface side of the reinforcing portion Q) from below is adopted. ing.

  On the other hand, as shown in FIG. 5, the leg portion holding portion 6 is suspended by the bolt 64 on the outer side end portion 52 a of the swing link 52, and the suspension height of the leg portion holding portion 6 is increased. By adjusting the screwing amount of the nut 65 screwed to the bolt 64, the nut 65 can be moved up and down between the solid line illustrated position (reference numeral 6) and the chain line illustrated position (reference numeral 6 '). . Then, when the leg holding portion 6 is lowered to the position indicated by the chain line (reference numeral 6 '), the hook portion 61' is positioned lower than the lower end of the inwardly protruding portion (lower protruding piece) Qa on the liner plate R side. From the state in which the swinging link 52 can be swung in a horizontal plane, and the hooking portion 61 ′ is located in the vicinity immediately below the inwardly projecting portion Qa. When the leg holding portion is moved up to the position shown by the solid line (reference numeral 6) by the bolt lifting operation by the nut 65, the hook portion 61 can be engaged with the inwardly protruding portion Qa from below.

  When the hook 61 of the leg holder 6 is engaged with the inwardly protruding portion Qa on the liner plate R side (shown by the solid line in FIG. 5), the liner plate R in a laid-down position as shown in FIG. The left and right leg portions Rb, Rb are supported from below by the left and right leg support supports 5, 5, respectively.

  Further, in this embodiment, as shown in FIGS. 5 and 7, the inwardly protruding portion Qa of the plate leg portion Rb is slid on the hook portion 61 of the leg portion holding portion 6 as shown in FIGS. Slide plates 62 and 63 to be moved are provided.

  The slide plates 62 and 63 function as follows. That is, in the liner plate installation process, as shown in FIG. 6, the telescopic boom 21 is reduced from the state where the liner plate R is raised and supported in suspension, and both legs Rb and Rb of the liner plate R are shown in FIG. As shown in the figure, it is lowered until it is placed on the mounting table W. At that time, since the base boom 21a is not moved, each of the left and right plates is maintained while the leg support supports 5 and 5 are also kept stationary. Since the leg portions Rb and Rb move downward, the inwardly projecting portion Qa of the plate leg portion Rb slides with respect to the leg portion holding portion 6 (the hook portion 61), and a frictional resistance is generated at the sliding contact portion. become.

  Therefore, as in this embodiment, when the slide plates 62 and 63 for sliding the inwardly protruding portion Qa are provided on the hook portion 61 of the leg portion holding portion 6, the inwardly protruding portion Qa of the plate leg portion Rb is provided. It can be smoothly slid with respect to the leg holding part 6.

  Next, the method of using the liner plate assembling apparatus of this embodiment will be described. The liner plate assembling apparatus of this embodiment also lays a number of liner plates R sequentially in the tunnel T from the posture as shown in FIG. It is used for raising and joining the assembly side liner plate R ′ to the existing side liner plate R1.

  First, as shown in FIGS. 1 and 2, the traveling carriage 1 is arranged inside the liner plate R assembled in a sideways posture in a state where the telescopic boom 21 is contracted down to the horizontal posture and is collapsed to a horizontal posture. At this time, the holding means 3 of the boom tip is positioned near the center of the ceiling Rc of the liner plate R. The liner plate R in the lying position is in a natural state. However, when the liner plate R is raised to the vertical position as it is, the distance between the left and right plate legs Rb and Rb is set to the existing both mounting bases W. , W approximately coincides with the interval between the plate legs so that the lower ends of the two plate legs Rb, Rb are aligned on the left and right mounting tables W, W in the liner plate standing posture. Or there is a background that it becomes minor and better.

  Next, from the state shown by the solid line in FIG. 1 and FIG. 2, the telescopic boom 21 is extended and the inward protruding portion Qa of the plate ceiling portion Rc is held by the holding means 3 ′ at the tip of the boom (FIGS. 3 and 4). State), left and right plate leg portions Rb, Rb inwardly projecting portions at the leg holding portions 6, 6 provided at the tip portions of the left and right leg support supports 5, 5 (tip portions of the swing link 52). Hold Qa. At this time, the swinging of the swinging links 52, 52 is performed so that the leg holding parts 6, 6 reach the inner surfaces of the plate leg parts Rb, Rb by the link swinging position adjusting means (extension cylinders) 7, 7. The position is adjusted and fixed, and the hook portion 61 of the leg portion holding portion 6 is engaged with the inwardly protruding portion Qa on the inner surface of the plate leg portion Rb as shown in FIG.

  By the way, in a state where the left and right plate leg portions Rb and Rb are supported by the left and right leg support supports 5 and 5, the swing links 52 and 52 of the leg support supports 5 and 5 are connected to each link swing position adjusting means ( The telescopic cylinders 7 and 7 are held so as not to swing. Therefore, even when the liner plate R is raised in a suspended state by the standing device 2 as described later (FIG. 6), both plate leg portions Rb, Rb does not bend inward due to its own weight.

  Next, when the hoisting cylinders 22 and 22 are extended and the telescopic boom 21 is raised, the liner plate R is separated from the ground, and the total load of the liner plate R is applied to the boom tip holding means 3 and the left and right leg portions. The liner plate R is sequentially raised while being supported in a distributed manner by the support supports 5 and 5, but the left and right plate legs Rb and Rb are supported by the leg support supports 5 and 5, respectively. Each plate leg Rb, Rb does not hang down due to its own weight. Therefore, when the boom 21 is raised, the liner plate R can be raised to a vertical posture while maintaining a parallel posture with respect to the boom 21, and when the boom 21 is raised to a vertical posture, the liner plate R is also accurate. It becomes a vertical posture.

  Further, when the liner plate R is raised by the boom 21, the load supporting force at the holding means 3 portion can be reduced by the amount that the plate leg portions Rb, Rb are supported by the both leg portion support supports 5, 5. Therefore, the deformation action to the plate ceiling portion Rc due to the weight of each plate leg Rb, Rb does not work, and the load supporting force at the holding means 3 portion may be small, so that the plate ceiling portion Rc is held. An excessive burden is not applied to the holding means 3 portion.

  As shown in FIG. 6, when the liner plate R is supported in a suspended state by the standing device 2, the two plates leg portions Rb and Rb are usually driven by their own weights as shown by solid lines in FIG. The plate leg portions Rb and Rb are bent inward. However, when the liner plate R is suspended in the air (FIG. 6), the link swing position adjusting means (extension cylinders) 7 and 7 of the leg support supports 5 and 5, respectively. Since the swinging links 52, 52 are maintained in their original positions (there is a tension force), the both plate leg portions Rb, Rb, even if an inward bending force is applied to both plate leg portions Rb, Rb. Rb can be maintained in the initial posture (interval).

  Next, while the telescopic boom 21 is contracted in the suspended state of the liner plate of FIG. 6, the assembly side liner plate R is joined to the existing side liner plate R1 as shown in FIG. The lower ends of the plate legs Rb and Rb are seated on the left and right mounting tables W and W, respectively. At this time, since the distance between both plate legs Rb and Rb remains substantially the same as the distance between both mounting bases W and W, adjustment of the lower end position of each plate leg Rb and Rb is almost unnecessary.

  Further, when the liner plate R is raised by the boom 21, the joint surface of the assembly side liner plate R maintains a high degree of parallelism with the joint surface of the existing side liner plate R1 (FIG. 16). Therefore, as shown in FIG. 8, when the lower ends of both plate legs Rb, Rb are seated on the left and right mounting tables W, W, the joining surface of the assembly side liner plate R becomes the existing side liner plate R1. The entire surface comes into contact with the bonding surface of FIG.

  Then, in the state of FIG. 8, the assembly side liner plate R is bolted to the existing side liner plate R1 as shown in FIG. 16, and the lower ends of the left and right plate legs Rb, Rb are respectively connected to the left and right mounting tables W, Bolts are fastened onto W. If the joint surface of the assembly side liner plate R is in full contact with the joint surface of the existing side liner plate R1, then the bolt fastening operation of both liner plates R and R1 is easy. It can be done.

  Thereafter, in the state of FIG. 8, the respective hooking portions 61 (FIG. 5) of the left and right leg holding portions 6, 6 are disengaged from the inwardly projecting portions Qa, and each link swing position adjusting means (extension cylinder) 7 7, the swinging links 52, 52 are swung to the anti-stretch side, while the holding means 3 at the top of the rising device 2 is released from the plate ceiling Rc to reduce the telescopic boom 21. As shown in FIG. 9, the entire liner plate assembling apparatus can be made free, and the traveling carriage 1 can be moved to move the liner plate assembling apparatus to the next liner plate assembling work position.

  The liner plate assembling apparatus of this embodiment has the following various functions in addition to the functions of the leg support supports 5 and 5 described above.

  (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 space between both plate legs), for example, at the construction site where there is an upward restriction such as in the tunnel T Even if it exists, the assembly work of a mechanical liner plate 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. On the other hand, it is possible to easily adjust the degree of right / left inclination, the degree of left / right positioning (overlapping), the degree of bonding of body surface parts, and the like.

  (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.

  In another embodiment, in addition to the above-mentioned components, a scaffolding board for boarding a worker may be installed on the chassis 11 so as to be movable up and down. Further, the entire liner plate assembling apparatus can be used as a truck bed by itself. You may equip a jack that can be loaded and unloaded.

  1 is a base (traveling carriage), 2 is a raising device, 3 is holding means, 4 is posture adjusting means, 5 is leg support support, 6 is leg holding part, 7 is link swing position adjusting means, 21 Is a boom (telescopic boom), 22 is a hoisting means (raising cylinder), 51 is a frame material, 52 is a rocking link, 53 is a pin, 61 is a hook, 62 and 63 are slide plates, and R is an assembly side liner plate. , R1 is an existing side liner plate, Q is a reinforcing portion, and Qa is an inward protruding portion.

Claims (5)

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 an upright device that can stand from the sideways posture to the vertical posture while holding the ceiling of the liner plate on the base,
The upright device can hold the ceiling portion of the liner plate provided at a telescopic boom attached to the base so as to be raised and lowered, a raising and lowering means for raising and lowering the boom, and a tip of the boom. Holding means,
Left and right leg support supports having lengths that reach the inner surfaces of the left and right legs of the liner plate from the boom in a state where the boom and the liner plate are both lying down on the base end position of the boom. Fixed,
Provided at each tip end portion of each leg support support is a leg holding portion capable of detachably holding the inner surface of each leg portion of the liner plate;
Each of the leg support supports is configured such that the ceiling portion of the liner plate in a lying position is held by the holding means of the rising device, and each leg portion of the liner plate is held by the leg holding portion of each leg support support. The liner plate has a rigidity capable of supporting the legs so as not to be deformed downward with respect to the ceiling by the load of the legs in a support state where the liner plate is levitated from the ground.
A liner plate assembling apparatus. In claim 1,
Each of the leg support supports includes a frame member that extends left and right outward from a position near the base end of the boom, and a leg member that is pivotally supported by a pin at the distal end of the frame member. And a swing link provided with a joint,
The swing link is attached in a state where the swing link can swing only in a horizontal plane without being displaced downward in a posture in which the boom is tilted down to a horizontal posture with respect to a tip portion of the frame material.
A liner plate assembling apparatus. In claim 2,
Link swing position adjusting means capable of adjusting the swing position of the swing link so as to be adjustable is provided between the frame material and the swing link.
A liner plate assembling apparatus. In any one of Claim 1 to 3,
As the liner plate, use one provided with an inward projecting part projecting inward on the inner surface of each leg part,
The leg engaging portion is provided with a hook portion that engages the inwardly projecting portion from below in a posture in which the boom is laid down to a horizontal posture.
A liner plate assembling apparatus. In claim 4,
A slide plate that slides the inwardly protruding portion of the liner plate is provided in the hook portion.
A liner plate assembling apparatus.

Images