JPS6327500B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a large-sized movable formwork apparatus for use in constructing retaining walls such as embankments.

When constructing a horizontally long retaining wall such as an embankment or barrier wall, first construct a foundation concrete of the required height on the foundation, and then construct the wall of the required height on top of that. However, it is inefficient to construct such concrete structures by assembling formwork on site each time, as has been the conventional method. Therefore, in recent years, for this type of construction work, a method has been implemented in which large formwork is constructed and concrete is poured while the formwork is moved using a crane. However, it has become clear that crane costs are a large burden and do not lead to reductions in formwork costs, and that it is difficult or impossible to install a crane depending on the site conditions. Therefore, there has been a demand for the development of a new formwork construction method to solve this problem.

Therefore, the present inventor has devised a method in which a traveling device is attached to the formwork, rails are installed on the foundation or existing substructures, etc. to guide the formwork, and the large formwork is moved while construction progresses. We have conducted a lot of research and development and achieved great results.

However, as shown in Figure 1, for breakwaters, etc., the foundation structure is generally not cast in place, but is often installed by cutting off caissons, etc. In this case, each caisson etc. _{A1〜Ao _}
The height of the top surface is often uneven and uneven. In such a case, each caisson etc. A ₁ ~ A _o
The heights H ₁ to _{H o} of the walls B ₁ to _{B o} to be constructed above must be adjusted so that the heights of the top surfaces of the walls are the same, and each caisson etc. A ₁
~ If there is a height or depression on the top surface of A _o , many defects will occur during construction with mobile formwork.

That is, for example, as shown in Figure 2 A, a high caisson
If there is a caisson A ₃ which is the next lowest after A ₂ , construction using formwork C will be carried out without any problem on top of the high caisson A ₂ , and the completed formwork C will be moved to the next lowest caisson A ₃ . Also, caisson A ₂ ,
Traveling is possible by simply pushing the height of the traveling devices D ₁ and D ₂ by the height difference h due to the height of A ₃ . However, as shown in Figure 2 B, if there is a lower caisson A ₁ followed by a higher caisson A ₂ , the lower caisson
In construction on the end of A ₁ , the formwork C rests on the high caisson A ₂ with its front part with its running gear D ₁ ;
The lower surface of the formwork C is spaced apart from the low caisson _A1 by the height difference h between the caissons _A1 and _A2 , and a gap is created in which the formwork C is not set. Therefore, when constructing formwork, special auxiliary formwork must be used to fill the void each time, making the work complicated and troublesome, and eliminating the advantage of using traveling formwork. As a result, construction efficiency and economic efficiency will be significantly reduced.

The present invention is an attempt to improve the drawbacks of the above-mentioned large movable frame, and the present invention aims to improve the drawbacks of the large, movable frame as described above. By forming a form body by removing the required height from the base, concrete structures can be constructed efficiently and economically using large and movable frames even on foundation concrete with height differences. The aim is to make it possible to do this continuously.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 is a side view of the main part showing the construction state by the apparatus of the present invention, and FIG. 4 is the same front view.

In these figures, 1 and 1 are formwork bodies arranged oppositely at a required interval, a plurality of vertical butterflies 2 and horizontal butterflies 3 are connected in a grid pattern, and a weir plate 4 is attached to the front of the formwork bodies. It is generally oblong in shape. By rotating the screw rod 6, a pin 7 screwed thereon is attached to the upper end of the vertical flaps 2, 2 located at the front and rear parts of the form body 1. An adjustment jack 5 is provided which is slidable in the lateral direction of the frame body 2, and the frame bodies 1, 1 are connected to the body members 8a, 8b for connecting the frame bodies 8a, 8b via pins 7 at the upper part thereof. Rotatably connected. Also,
Trunk members 8a and 8b protrude outward from this joining point
A brace 12 is rotatably connected to the end of the brace 12 through the pin 10, the upper end of which is provided with an adjustment jack 11 similar to that described above, with the pin 10 being slidable by the rotation of the threaded rod 9. , the lower end of the brace 12 is pivotally connected to the lower part of the vertical butterfly 2 by a pin 13. With this configuration, the upper end of the formwork 1 can be freely rotated by the pin 7 with respect to the body members 8a and 8b, and can be freely adjusted to move in the length direction by operating the adjustment jack 5. By operating the adjustment jack 11 of the brace 12,
The form body 1 is rotated around pins 7, and its tilting state can be adjusted.

A pair of rear traveling gear wheels 15, 15 are provided on the body member 8b connecting the rear portions of the formworks 1, 1 at a position inward from the point where the formworks 1, 1 are connected.
Further, front traveling casters 16, 16 are mounted inside the lower front end portions of the formworks 1, 1, respectively.

The rear traveling caster 15 is composed of wheels 18 having lifting jacks 17, and is attached to the body member 8b via a bracket 19. By rotating the threaded rod 20 of the lifting jack 17, the body member 8b is moved. The formwork 1 can be adjusted up and down with respect to the traveling leg vehicle 15 through the above. Further, the front traveling leg vehicle 16 has a lifting jack 21, and
Wheels 23 are provided which can be moved and adjusted in the lateral direction by means of lateral jacks 22, and are mounted via brackets 24 provided inside the lower front ends of the formwork bodies 1,1. By rotating the threaded rod 25 of the lifting jack 21, the form body 1 can be adjusted up and down relative to the traveling caster 16, and the threaded rod 26 of the horizontal jack 22
By rotating it, the lower front end of the form body 1 can be moved and adjusted in the lateral direction with reference to the wheels 23.

Further, the front body member 8a is provided with a front traveling leg vehicle 16.
A partition formwork 27 to be set between the formwork bodies 1, 1 is suspended by lifting jacks 28, 28 so as to be able to rise and fall freely at the rear position of the formwork bodies 1, 1.
In the front part of the frame body 1, 1, that is, in the front part from the position where the partition formwork 27 is provided, a cutout part 29 is provided over a required height from the lower end, and the rear part of the formwork bodies 1, 1, that is, the rear traveling leg vehicle 15 is provided. There is also a cutout part 3 in the rear part from the lower end to the required height.
0 is set. Each of these missing parts 29, 30
The height of foundation concrete such as caisson A ₁ ~ _{A o}
It is necessary to assume the height difference in each level and set the height to be equal to or higher than the height difference.

In this embodiment, the body members 8a and 8b connecting the formwork bodies 1 and 1 are located at two locations, one at the front and the rear of the formwork bodies 1 and 1, but they may be changed as necessary. The number of locations can be increased. In addition, 31, 31 in the figure are rails placed on the top surface of the existing wall B constructed on the foundation concrete A, 32, 3
2 is a rail placed on the top surface of foundation concrete A before construction.

Next, an example of construction using the apparatus of the present invention will be explained.

First, the rear traveling casters 15, 15 are placed on the rails 31, 31 of the facility on the upper surface of the existing structure or wall B that has already been constructed, and the rear of the formwork bodies 1, 1 is attached to the structure. Rails 32, 32 supported on the ends of B and installed on the top surface of foundation concrete A
The front traveling casters 16, 16 are placed on top to support the front portions of the form bodies 1, 1 on the foundation concrete A.

In this state, the adjustment jack 5 of the vertical butterfly 2, the adjustment jack 11 of the brace 12, and the front traveling gear 16 are
Operate the horizontal jacks 22 to position the formwork bodies 1, 1, and operate the lifting jacks 15, 16 and lifting jacks 17, 21 of the traveling casters 15, 16 to lower the lower ends of the formwork bodies 1, 1. Lower it to a predetermined position and set it, such as placing it on foundation concrete A. At this time, it goes without saying that the form bodies 1, 1 should be able to resist the pressure of the poured concrete by using a separator or the like (not shown).
Further, the partition formwork 27 is also lowered by operating the lifting jacks 28, 28, so that its lower end is placed on the foundation concrete A. This partition formwork 27
Needless to say, measures must be taken to resist the pressure of poured concrete.

Once the formwork bodies 1, 1 are set in predetermined positions, concrete is poured into the voids within the formwork. Once this concrete has hardened, operate the adjustment jacks 5, 5, 11, 11 and the horizontal jacks 22, 22 of the front traveling gear 16 to move the form bodies 1, 1 outward, and The frame 27 is also lifted up by the lifting jacks 28, 28, and the mold is removed. In this way, a new structure such as a wall is constructed within the formwork, connected to structure B. Then, a new rail is installed on the upper surface of the new structure following the rail 31.

The formwork bodies 1, 1 that have been removed from the mold form the traveling casters 15, 1.
Operate the lifting jacks 17 and 21 of 6 to lift it up, raise its lower end, move it forward along the rails with the traveling casters 15 and 16 to a new construction site, and carry out construction using the same operations as described above. We proceed repeatedly. In this case, the existing rails placed in the formwork at the new construction site may be removed as appropriate once the formwork has been moved and its role of guiding and supporting has been completed.

Therefore, when construction is carried out at the end of a low caisson etc. A ₁ , the front part of the formwork body 1 will be placed on the next high caisson etc. A ₂ with a step h, as shown in Fig. 5A. However, in such a case, since the cutout part 29 is formed in the front part of the formwork body 1, the part of the formwork body 1 that is applied to concrete pouring is placed on the caisson etc. _A1 . It can be set in contact with the When moving the formwork, each traveling caster 15, 16 is extended higher than the step h to move the formwork 1.
By lifting it up, it can be easily moved over steps to the next construction site. Also,
If the construction is carried out at the end of _A2 such as a high caisson as shown in Figure 5B, there will be no problem in setting the formwork 1, and when moving to the formwork 1, the height difference h will be It is only necessary to extend the front traveling leg car 16 by an additional amount. Next, when construction is carried out at the beginning of a low caisson etc. _A3 , the rear part of the formwork body 1 will be placed over the caisson etc. _A2 with a high step h, as shown in Figure 6A. In such a case, since a cutout 30 is formed at the rear of the form body 1, the part of the form body 1 that is applied to concrete pouring is set in contact with the caisson etc. _A3 . In addition, if the construction is carried out at the beginning of _A2 such as a high caisson as shown in Figure 6B, the cutout part 3
0 is applied to the already constructed structure B, so there is no risk of affecting concrete placement.

As explained above, the present invention connects at least the upper part of the front end and the rear end of the formwork bodies facing each other with a required interval by a body material, and provides a body material and a mold in which the rear parts of the formwork are connected. A running gear with a lifting jack is attached to the inside of the front part of the frame, and cutouts having the required height and length are provided at the lower ends of the front and rear parts of the form body, respectively. (1) As a formwork device, it has a simple structure and is easy to handle.

(2) Since the formwork body is supported by the top surface of the existing structure and the top surface of the foundation structure, it is highly stable and work can be performed safely and reliably.

(3) Since the formwork is moved by traveling wheels attached to the front and rear parts of the formwork, there is no need for special machines or facilities for moving the formwork in addition to rail facilities. The frame can be moved safely and easily,
Setting and resetting the formwork is also easy.

(4) Since cutouts are provided at the lower ends of the front and rear parts of the formwork, even if there is a level difference in the foundation structure due to caisson facilities, for example, the mold can be placed on the foundation structure. The frame can be set, reset and moved smoothly, reliably and safely. It has many excellent effects such as
Various embankments, shielding walls, walls of elevated structures, etc.
It can be widely applied to the construction of horizontally long concrete structures.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the construction mode of the breakwater, Fig. 2 is a side view showing an overview of formwork construction in Fig. 1, and Fig. 3 is a side view of the main part showing the present invention equipment and its construction state. Fig. 4 is the same front view, Fig. 5 is the same front view.
Fig. 6 and Fig. 6 are side views showing an overview of construction on foundation concrete with steps. A ₁ , A ₂ , A ₃ , A ₄ ...Foundation structure, B ₁ , B ₂ , B ₃ ,
B ₄ ...Wall body, C...Formwork, h...Step, 1...Formwork body,
2... Vertical flap, 3... Horizontal flap, 4... Shelter plate, 5... Adjustment jack, 8a, 8b... Trunk member, 11... Adjustment jack, 12... Brace, 15... Rear traveling gear, 16
...Front traveling gear, 17... Lifting jack, 18... Wheels, 21... Lifting jack, 22... Lateral jack, 2
3... Wheels, 27... Partition formwork, 28... Elevating jacks, 29, 30... Defects, 31, 32... Rails.

Claims (1)

[Claims] 1 At least the upper parts of the front and rear ends of the formwork bodies facing each other at a required interval are connected by a body material, and a lifting jack is attached to the body material that connects the rear part of the formwork and the inside of the front part of the formwork. Construction of a retaining wall, etc., characterized in that a traveling caster having a structure is installed, and cutouts having the required height and length are provided at the lower ends of the front and rear parts of the form body, respectively. Mobile formwork equipment.