JPS642739B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a legal framework constructing device for protecting and stabilizing legal frameworks, and more specifically, the device itself has a formwork function, which is a method that is not conventionally required. This invention relates to a slope construction device that does not require the installation of formwork.

[Technical background of the invention and its problems] When performing slope protection work, formwork is set up using wire mesh, paper, expanded metal, synthetic resin foam, etc., and mortar, etc. is sprayed between the formwork. It is common practice to construct a frame.

In this case, it takes a considerable amount of effort to install the formwork according to the slope and the specified shape.
It usually accounts for about 60 to 70% of slope construction. With exceptions such as the case of expanded metal, the form itself generally does not affect the strength of the frame. Therefore, if the shape of the legal frame can be maintained by other means, it is naturally preferable not to use formwork in terms of improving construction efficiency and eliminating the need for formwork costs. However, in the past, no attempt was made to eliminate the need for formwork, based on the belief that the use of formwork was unavoidable.

[Object of the invention] The present invention solves the above-mentioned problems caused by the use of formwork all at once, enables construction of a legal framework without using formwork, and provides a method for constructing a legal framework that is extremely easy to construct and economically efficient. The goal is to provide equipment.

[Structure of the Invention] The first invention to achieve this object includes a main body that is movable in the direction of the legal frame to be constructed, a spraying device for mortar etc. provided on the main body, and a At least a pair of left and right shaping devices are arranged on the main body at intervals and shape both sides of the legal frame material by the sprayed material, and the sprayed material is disposed between or in front of the shaping devices. It is characterized by being able to be sprayed on.

Further, the second invention provides a main body that is movable in the direction of the legal frame to be constructed, a spraying device for spraying material such as mortar provided on the main body, and a spraying device disposed on the main body at intervals in the width direction of the legal frame. at least a pair of left and right side shaping devices for shaping both sides of the legal frame material by the sprayed material; and a side shaping device located at a rear position in the moving direction of the shaping device for shaping the upper surface of the legal framework material. The surface shaping device is characterized in that the spraying material is sprayed between the shaping devices or in front of the shaping device.

As described above, the present invention generally includes a spraying machine and a shaping device for the sprayed material in the main body of the device, and while the whole unit is moved, spraying and shaping are performed all at once, thereby eliminating the need for formwork. This is what I am trying to do.

[Specific Examples of the Invention] The present invention will be further explained in detail below using specific examples shown in the drawings.

Figure 1 is a schematic diagram of the construction state. Along the slope direction of the slope 1, a large number of scaffolding rails 2, 2... are arranged at intervals in the width direction and further away from the slope 1. be done. A slope construction device A, the detailed structure of which will be explained later, is installed on these scaffolding rails 2, 2, and is connected to the slope shoulder via a lifting and fall prevention wire 3 (rope etc.) connected to it. The installed winch 4 sequentially pulls up the legal framework construction device A, and in the process, sprays the spraying material C and removes the legal framework B.
The formatting is performed. Regarding the frame of legal frame B,
This is done by moving only the spraying/shaping part of the construction device A.

Next, according to FIGS. 2 to 8, the construction device A
To explain an example, numeral 10 is a horizontally long frame first cart, and four sets of wheels 11 are attached to the lower part of the first cart, which straddles the scaffolding rail 2. 12 is a bracket to which the wire 3 is connected. A second cart 13 is provided on the first cart 10 and is movable along its longitudinal direction (width direction). This second truck 13 rides on the slope shoulder side frame 10A and slope foot side frame 10B of the first truck 10 via wheels 14A and 14B.
A guide wheel 15 attached to the side plate 13a of the second truck 13 is engaged with the lower surface of 0A.

As a result, the entire construction device A is moved along the scaffolding rails 2, 2 in the longitudinal direction of the slope 1 by being pulled up via the wire 3, and is also moved by a motor (not shown) into the second The cart 13 is moved on the first cart 10 in the lateral direction of the slope 1.

On the other hand, if we pay attention to Figures 7 and 8, the second
A rack board 16 having a circular opening 16a in the center is installed in the opening 13b of the truck 13, and the rack board 16 is raised and lowered by four lifting cylinders 17 fixed to the second truck 13. It has become freely possible. Furthermore, the turntable 1 is placed on the edge of the opening 16a of the rack plate 16.
8 is riding through car theory 19. A vertical gear 20 is formed on the upper circumference of the rotary table 18 . The driven gear 20 meshes with a driving gear 21 that is pivotally attached to the frame plate 16, and a driven bevel gear 22 is provided having the same shaft as that of the driving gear 21. 23
is a rotary drive motor, and a driving bevel gear 24 that meshes with the driven bevel gear 22 is attached to its output shaft. Thus, when the drive motor 23 is now started to rotate the driving bevel gear 24, the driven bevel gear 22
Then, the driving gear 21 rotates, and the rotary table 18 rotates on the mount plate 16 in the circumferential direction. Thereby, when changing from vertical frame construction to horizontal frame construction, the orientation of the spraying device and the shaping device can be changed, for example, by 90 degrees, from vertical to horizontal.

Now, on the rotating table 18 is a shaping drive motor 25.
However, a total of four circular side shaping plates 28 are attached to the lower part via a support 26 and a shaft support plate 27, two in the front and rear on one side, and a total of four on both sides. The width interval between the pair of left and right side shaping plates 28, 28 is set in advance to be the same as the desired width of the frame. Here, if necessary, the shaping plate 28 may be made movable along the support shaft 29 so as to be able to deal with frames of various widths. Further, sprockets 30, 30 are attached to the support shafts 29, 29, respectively, and chain belts 32, 32 are wound around these and sprockets 31, 31 fixed to the output shaft 25a of the shaping drive motor 25. On the other hand, 33 is a spraying device,
For example, it consists of a shotcrete type spray machine having the structure described below. 34 is a hose that supplies the spraying material C into the spraying machine 33. 35 is a surface shaping plate,
It is fixed to the lower part of the support body 26. Of course, this shaping plate 35 can also be raised and lowered according to the height of the legal frame. In the device configured as described above, in the process of pulling up the entire construction device A along the scaffolding rails 2, 2 by the winch 4 via the wire 3, the spraying device 33 sprays air between the shaping plates 28, 28 or slightly therebetween. Project the spray material C forward. At the same time, the shaping drive motor 25 is started, and the four side shaping plates 28, 28... are rotated, for example, in the direction of the arrow in FIG. do. In addition, by pulling up the entire construction device A, the surface shaping plate 35 is removed from the spray material C.
Press it against the top of the mountain to even out the surface.

At an appropriate time, such as when the construction of the vertical frame is completed from the foot of the slope to the shoulder of the slope, or only the length of the unit frame is completed, the construction of the horizontal frame is started. In this case, first, the platform 16 is raised by each lifting cylinder 17 so that the lower end position of the side shaping plate 18 is located at least above the vertical frame, and then the drive motor 25 is started and the rotating table 18 is When constructing an orthogonal frame, rotate it 90 degrees. Thereafter, only the second truck 13 is moved side by side with the first truck 10 fixed at that position without being pulled up. In this traverse process, similar to the construction of the vertical frame, the spraying material C is sprayed and both sides and the surface are shaped. Note that this horizontal frame may be constructed for the entire length of the horizontal frame of the unit law frame, but if necessary, it should be done up to the middle of the horizontal frame, and the remaining horizontal frame should be constructed after the adjacent vertical frame is constructed. Good too.

Next, after lowering the construction device A to the foot of the slope if possible, use a crane or the like to straddle the adjacent scaffolding rails 2, 2, and then move the adjacent vertical frame and then the horizontal frame. To construct. This work is performed on the entire slope to complete the slope.

In the above example, when shaping the top surface of the slope frame, the rolling plate may be struck while being vibrated up and down, as in a rolling machine for road repair. Further, a rotating plate like the side shaping plate 28 may be used.

Furthermore, there may be only one set of left and right side shaping plates 28. Further, this side surface shaping means may be an endless belt 37 that rotates at approximately the same speed as the moving speed of the construction device A driven by a drive motor 36, as shown in FIGS. 9 and 10.

As mentioned above, formwork has conventionally been used in this type of slope construction, and the installation work has taken up the majority of the slope work. On the other hand, by moving the shaping means, there is a great practical effect in that there is no need to use a formwork at all.

On the other hand, in the above example, the reason why the first cart 10 is lifted by the wire 3 is of course to raise the construction device A, but in this type of legal framework construction, the target is a steep slope of about 75 degrees at most. This is also to prevent construction equipment A from falling.

Additionally, the vertical and horizontal frames of the legal frame can be constructed individually. However, in this case, the scaffolding rails 2, 2 must be installed in the horizontal direction, and the direction of the construction device must be changed every time the construction is moved from the vertical frame to the horizontal frame, and each time the construction is moved from the vertical frame to the next horizontal frame. It requires relocation to the next horizontal scaffolding rail, which takes a lot of time and effort. On the other hand, if the second carriage 13 is moved on the first carriage 10, the horizontal frame can be constructed without installing horizontal scaffolding rails. In particular, if no shaping device is used, there is no need to change the orientation of the spray machine.

In the above example, the second cart 13 may be moved in a self-propelled manner by being equipped with a moving motor, but if necessary, it may be moved via a wire or the like using a winch installed at the width of the slope. good.

Furthermore, the scaffolding rails 2, 2 and the horizontal construction device A are placed laterally, and while the horizontal frame is being constructed first,
Next, you may move to the vertical frame.

On the other hand, the spraying device 33 may be a commonly used spraying gun that uses compressed air, but a shotcrete type that does not use compressed air is preferable because it can reduce dust generation and rebound loss. It is.

A detailed example of this shot cleat device
12. As shown in FIG.

That is, 110 is a rotary drive motor, and a rotary shaft 112 is integrally connected to an output shaft 111 of the rotary drive motor by a key. On the rotating shaft 112, for example, three rotating blades 113, 113, 113 having a predetermined thickness in the direction of the rotating shaft extend in the radial direction at equal intervals. The rotating blade 113 is connected to the rotating shaft 112
It is integrated by welding or the like, and reinforced by ribs 114. 115 is the rotating blade 11
3, a rotary drive motor 11
Fixed to 0. A partial opening 115a is formed in the casing 115 with an opening angle θ. α is the spread angle of the sprayed material. On the other hand, a hose 34 for force feeding the spray material C is attached to the casing 115, and its input port is connected to the rotary vane 113 in the direction of the arrow in FIG.
is opened in the casing 115 in the direction of rotation of the rotary blade 113, and extends from the periphery of the rotary blade 113 into its rotational region perpendicularly to the rotation axis 112 and across the rotary blade 113. The structure is such that the spray material C is introduced along the surface.

[Effects of the Invention] As described above, the present invention performs spraying while moving the spraying device, and also has a shaping device attached to the device, so there is no need to use formwork, and it is extremely economical, completely changing the conventional construction method. It has the advantage of being a

Further, according to the second invention, there is an advantage that the upper surface of the legal strip is also shaped.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of construction using the construction device according to the present invention, Fig. 2 is a plan view showing only the cart portion of the construction device, Fig. 3 is a front view seen from the shoulder direction, and Fig. 4 5 is an enlarged plan view of the second truck, FIG. 6 is a front view thereof, FIG. 7 is a plan view of the second truck with a shaping device and a spray device attached, and FIG. 8 is a plan view of the second truck. is a sectional view taken along the line, No. 9
10 is a front view thereof, FIG. 111 is a cross-sectional view showing an example of a spraying device, and FIG. 12 is a longitudinal sectional view thereof. 2...Scaffolding rail, 3...Wire, 10...
1st trolley, 18... 2nd trolley, 16... cradle, 1
8... Turntable, 28... Side shaping plate, 33... Spraying device, 35... Surface shaping plate, 37... Endless belt, A... Law frame construction device, B... Law frame, C......
Spraying material, X...Shotcrete device.

Claims (1)

[Scope of Claims] 1. A main body movable in the direction of the legal frame to be constructed, a spraying device for spraying material such as mortar provided on this main body, and disposed on the main body at intervals in the width direction of the legal frame. and at least a pair of left and right shaping devices for shaping both sides of the legal frame material with the sprayed material, and the spraying material is sprayed between or in front of the shaping devices. Characteristic legal framework construction device. 2. The legal frame construction device according to claim 1, wherein the shaping device comprises a rotary plate that is positioned on the side surface of the legal frame material and rotates. 3. The legal frame construction device according to claim 1, wherein the shaping device comprises an endless belt that rotates at the same speed as the moving speed of the main body while hitting the side surface of the legal frame material. 4 A main body movable in the direction of the legal frame to be constructed, a spraying device for spraying material such as mortar provided on this main body, and a spraying device disposed on the main body at intervals in the width direction of the legal frame and capable of spraying. at least a pair of left and right side shaping devices for shaping both sides of the legal frame material using sprayed material, and a surface shaping device located at a rear position in the moving direction of the shaping device for shaping the upper surface of the legal framework material. , A legal frame construction device characterized in that spraying material is sprayed between the shaping devices or in front of the shaping devices. 5. The construction device according to claim 4, wherein the surface shaping device is a scraper plate that comes into contact with the upper surface of the legal frame material.