JPS642740B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a slope spraying method for constructing a slope frame for protecting and stabilizing a slope, general full-surface spraying, etc. This invention relates to a slope spraying method that allows the equipment to be mechanically run over the entire slope and to prevent the equipment from falling.

[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 legal framework.

In this case, installing the formwork to match the undulations of the slope and the predetermined shape requires a considerable amount of effort.
It usually accounts for 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 framework can be protected 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.

On the other hand, in normal slope construction, the nozzle man uses a safety rope to support his body while holding a nozzle gun and spraying material, but this method lacks safety.
Therefore, it is preferable to run the spray machine mechanically on the slope, but depending on the construction site, there is a risk that the machine may fall due to the steep slope.

[Object of the invention] The present invention was proposed in view of the above circumstances, and
The spraying machine can be moved on slopes, relieving the burden on the nozzle man, and preventing the equipment from falling even on steep slopes.Furthermore, wires are used to prevent falls when moving the spraying machine. The purpose of the present invention is to provide a slope spraying method that can be used.

[Structure of the Invention] The method of the present invention to achieve this object is to provide a running rail on a slope, install a trolley equipped with a spray machine on this running rail, and move this trolley along the running rail. The present invention is characterized in that the material is sprayed from a spraying machine while the vehicle is moving, and the vehicle is always suspended by wires hanging from the shoulder direction to prevent the vehicle from falling.

[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 horizontal 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, reference numeral 10 denotes 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. 1st
A second cart 13 is provided on the cart 10 and is movable along its longitudinal direction (width direction).
This second truck 13 is the shoulder side frame 1 of the first truck 10.
0A and the slope side frame 10B via wheels 14A and 14B, and the slope side frame 10A
A guide wheel 15 attached to the side plate 13a of the second truck 13 is engaged with the lower surface of the guide wheel 15.

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 trolley 13.
6 is movable up and down by four lifting cylinders 17 fixed to the second truck 13. Further, a rotary table 18 is placed on the edge of the opening 16a of the rack plate 16.
is riding on it via wheels 19. A driven gear 20 is formed on the upper circumference of the rotary table 18 . This driven gear 20 is a driving gear 2 which is pivotally attached to the frame plate 16.
1, and a driven bevel gear 22 having the same shaft as the driving gear 21 is provided. 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 and the driving bevel gear 24 is rotated, the driven bevel gear 22 and the driving gear 21 are rotated, and the rotating table 18 is rotated to rotate the driving bevel gear 24.
6 rotate in the circumferential direction. Thereby, when changing from constructing a vertical frame to constructing a horizontal frame, 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.

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 at an appropriate time. 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 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 rails 2 and 2 of the adjacent scaffolding, and then move the adjacent vertical frame and then the horizontal frame. Build each. 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 horizontally, and the direction of the construction device must be changed each time the horizontal construction is moved from the vertical frame to the horizontal frame, and each time the construction device is moved from the vertical frame to the next horizontal frame. This requires relocation to the next horizontal scaffolding rail, which is extremely time-consuming. 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 construction device A are arranged 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.

In addition to the case of constructing a slope, the present invention also includes the case of spraying the entire surface of a general slope.

[Effects of the Invention] As described above, according to the present invention, when constructing a slope frame or performing general spraying while moving a cart equipped with a spraying machine, the cart is suspended from the slope shoulder direction using wires. Because of this, it is possible to prevent the equipment from falling and achieve safe construction even when constructing on a steeply sloped surface.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of construction using the construction equipment according to the present invention, Fig. 2 is a plan view showing only the cart portion of the construction equipment, and Fig. 3 is a front view seen from the shoulder direction.
FIG. 4 is a side view thereof, FIG. 5 is an enlarged plan view of the second truck, FIG. 6 is a front view thereof, and FIG. 7 is a plan view of the second truck with a shaping device and a spraying device attached. FIG. 8 is a cross-sectional view taken along the line arrow, FIG.
The figure is a front view thereof, FIG. 11 is a cross-sectional view showing an example of a spraying device, and FIG. 12 is a longitudinal cross-sectional view thereof. 2...Scaffolding rail, 3...Wire, 10...
1st trolley, 13... 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)

[Claims] 1. A running rail is provided on the slope, a trolley equipped with a spraying machine is installed on the running rail, and the spraying material is sprayed from the spraying machine while the trolley is moved along the running rail. Also, a slope spraying method characterized in that the cart is constantly suspended with wires hanging from the slope shoulder direction to prevent the cart from overturning. 2. The slope spraying method according to claim 1, wherein a cart is moved while being pulled up via the wires when spraying from the foot of the slope to the shoulder of the slope.