JP2003227123A - Earth formwork molding method, and construction equipment for use in molding earth formwork - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an earth formwork molding method for use in molding earth formwork of a check dam, etc., which can mold the earth formwork of a desired shape only by molding an earth upper surface by means of a bucket of a backhoe shovel or the like, thereby facilitating molding work, improving the working efficiency thereof, and facilitating lining-up of the earth formwork and unmanned execution of the work. <P>SOLUTION: According to the method, a slope shaping faceplate 19 is ascendably/ descendably attached to a side surface of a track frame 18 of the backhoe shovel 11 equipped with the bucket 16, via an arm 21 and an ascendable/descendable cylinder 22. Then, the faceplate 19 is pressed to an end face of earth and sand A accumulated on the ground, and the upper surface 1a of the earth and sand A is molded by using a lower surface of the bucket 16. Thus, the earth and sand A are raked toward the faceplate 19 and compacted to shape the slope 1b, to thereby mold the earth formwork 1 having a desired inclination of slope. Thereafter, when the faceplate 19 is retreated upward, the backhoe shovel 11 is moved through a distance corresponding to the length of the faceplate 19 in an earth formwork extending direction, and then the faceplate 19 is set, whereby the upper surface and the slope of the earth formwork are simultaneously molded by means of the bucket 16 and the faceplate 19. In this manner, these steps are repeatedly carried out. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for molding a sand / sand mold used for constructing a concrete structure such as a sabo dam and a construction machine for molding the sand / sand mold.

[0002]

2. Description of the Related Art In erosion control dams and the like, concrete placement is carried out using earth and sand molds obtained by molding local earth and sand as molds for super hard concrete (RCC: Roller Compacted Concrete). The RCC is unloaded between a pair of left and right earth and sand forms by a dump or the like, spread by a bulldozer or the like, and compacted by a vibrating roller or the like.

FIG. 5 shows an outline of an example of such a earth and sand form. A pair of a pair of local earth and sand A formed in parallel with the longitudinal direction of a concrete structure B to be constructed is formed. The sand molds 1 and 1 are formed. The earth and sand mold 1 has a slope 1b whose surface is inclined at a predetermined gradient, and concrete 2 is cast in a flat inverted trapezoidal space formed by a pair of left and right earth and sand molds 1 and 1. Compact. Next, on the flat top surface of the completed earth and sand form 1 and concrete 2, the next earth and sand forms 1 and 1 are formed with a narrow interval, and concrete 2 is cast and compacted, and the earth and sand mold as described above is formed. A concrete structure B such as a sabo dam is constructed by sequentially repeating the molding of the frame 1 and the placing and compacting of the concrete 2.

For molding the earth and sand mold 1 having such a structure,
Conventionally, a dedicated bucket for shaping a slope is attached to the tip of a boom of a traveling construction machine such as a backhoe, and the top end 1a and the slope 1b of the earth and sand formwork 1 are tapped to form the lower surface of the dedicated bucket.

[0005]

When molding both the top end and the slope of the earth and sand form using buckets such as a backhoe as in the prior art, it is necessary for the operator to have skill in shaping the shoulder. , It takes time to work. further,
Molding with a bucket makes it difficult to extend the longitudinal direction of the concrete structure to be constructed. Further, in a dangerous site, unmanned construction is desired, and it is difficult to unmanned construction by forming the top end and slope with a bucket.

The present invention has been made to solve such a problem, and an object thereof is to form only a top end of earth and sand with a bucket such as a backhoe when forming a earth and sand form of a concrete structure such as a sabo dam. It is possible to mold the earth and sand mold with a desired shape simply by molding, and it is possible to facilitate the molding work and improve work efficiency, and it is easy to put out the earth and sand mold line, An object of the present invention is to provide a method for forming a sand and sand mold and a construction machine for forming a sand and sand mold that facilitates unmanned construction.

[0007]

According to the first aspect of the present invention, a pile of earth and sand is formed to cast concrete (RCC).
Etc.) is the method of forming a sand and sand form, and the face plate for slope shaping of the earth and sand form provided on the traveling construction machine is pressed against the end surface of the piled sediment, and the bucket of the traveling construction machine is used. A method for forming a sand / sand mold which comprises shaping the slope of the sand / sand mold by bringing the sand / sand to the face plate side by molding the top end of the sand / sand to form a sand / sand mold having a predetermined shape. Is.

According to a second aspect of the present invention, there is provided a construction machine for forming a sand and sand form, and a sand and sand form method is applied to a lower traveling body of a traveling construction machine including an upper swing body and a lower traveling body equipped with a bucket. It is a construction machine for earth and sand form forming, which is provided with a face plate for face shaping.

In the first and second aspects of the present invention, the traveling construction machine is, for example, a backhoe, and a face plate for earth and sand form slope shaping is attached to the side surface of the track frame of the lower traveling body, and this face plate is attached to the end surface of the earth and sand. By pressing and compacting the top of the sand and sand with a backhoe bucket, the sand and sand are squeezed to the face plate side and compacted, the slope of the sand and sand mold is shaped, and the bucket and the face plate provided in the upper revolving structure The top and slope of the frame are molded at the same time. Further, the traveling type construction machine is moved in the extending direction of the earth and sand formwork by the length of the face plate, and the forming operation is sequentially repeated. The traveling construction machine is preferably a crawler type, but may be a wheel type or the like.

According to a third aspect of the present invention, in the earth and sand frame forming construction machine according to the second aspect, the face plate for adjusting the slope of the earth and sand frame has an elevating mechanism or an advancing / retreating moving mechanism on the track frame of the lower traveling body. It is a construction machine for earth and sand mold forming, which is characterized in that it is attached through.

According to the third aspect of the present invention, when the traveling construction machine is moved in the extending direction of the earth and sand mold by the length of the face plate, the face plate is retracted from the earth and sand form frame, and after the movement, the face plate is moved to the end surface of the earth and sand. This is the case when it can be pressed against. The elevating mechanism is composed of a rotating arm, an elevating cylinder, and the like. The face plate is rotated upward to retract it upward, and downwardly rotated to set it on the foundation surface (concrete surface). The advancing / retreating mechanism is composed of a cylinder or the like, and moves the advancing / retreating horizontally.

According to a fourth aspect of the present invention, in the construction machine for forming a sand mold according to the third aspect, a face plate mounting member is provided at a tip of the elevating mechanism or the advancing / retreating moving mechanism, and the face plate mounting member has an angle adjusting member. A construction machine for molding a sand and sand mold which is characterized in that a face plate for shaping the slope of the sand and sand mold is attached thereto.

According to the fourth aspect, the inclination angle of the face plate can be arbitrarily set. The lower parts of the face plate and the face plate mounting member (mounting plate) are connected by a pin hinge, and the upper parts are connected by an angle adjusting member (turnbuckle, etc.). By changing the inclination angle of the face plate, the slope of the slope of the sand and sand mold and the height of the top can be arbitrarily set.

In the above structure, when molding the earth and sand form of a concrete structure such as a sabo dam, a face plate is pressed against the end surface of the piled earth and sand, and only the top end of the earth and sand is formed by a bucket such as a backhoe. It is possible to mold the earth and sand mold with a desired shape, and the skilled work of slope shaping unlike the conventional molding with only a bucket is unnecessary, the molding work is facilitated and the work efficiency is improved. it can.

Further, since it is only necessary to move and set the face plate with a backhoe or the like, it becomes easy to set the line of the earth and sand form, and further, unmanned construction becomes easy.

Further, by mounting the face plate on the track frame of the lower traveling body via the elevating mechanism and the advancing / retreating mechanism, the face plate can be easily and surely set at the molding position. Further, by attaching the face plate to the face plate attaching member via the angle adjusting member, the slope of the slope of the earth and sand mold and the height of the top can be arbitrarily set.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described based on illustrated embodiments. 1 to 4 show one embodiment of a construction machine for forming a sand and sand mold used in the method for forming a sand and sand mold of the present invention and its forming condition. FIG. 5 shows an outline of an example of the earth and sand mold formed by the present invention.

1 and 2, a construction machine 10 for forming a sand and sand mold of the present invention uses a backhoe 11. The backhoe 11 includes an upper revolving structure 12 and a crawler-type lower traveling structure 13, and the upper revolving structure 12 includes a boom 14 that can be raised and lowered and an arm 15 that is attached to the tip of the boom 14 so as to be vertically rotatable. , This arm 15
1 attached to the tip of the rotatably in the vertical direction
6 is provided.

In the backhoe 11 as described above, a face plate (side blade) 19 for earth and sand mold slope shaping is attached to the side surface of the track frame 18 of the crawler (crawler belt) 17 on one side of the lower traveling body 13, and the earth and sand form frame 1 is attached. The face plate 19 is pressed against the inner end surface of the earth and sand A stacked at the installation position at a predetermined inclination angle θ, and the top end 1a of the earth and sand form 1 is formed on the lower surface of the bucket 16 to transfer the earth and sand A to the face plate 19 side. Slope 1 of soil and sand mold 1 with a certain slope
Shape b. The bucket 16 may be a commonly used bucket or a dedicated bucket for shaping the top end having a flat lower surface.

As shown in FIGS. 2 to 4, the face plate 19 is a rectangular steel plate or the like having an appropriate width and length, and the unit of the earth and sand form 1 can be changed by changing the width and the inclination angle θ. The height and the slope of the slope 1b can be set arbitrarily. Also, due to its length, it is 1 in the longitudinal direction of the earth and sand formwork 1.
The molding length of the cycle is determined.

As shown in FIGS. 3 and 4, the face plate 19 is attached to the mounting plate 20 while being inclined, and the mounting plate 20 is mounted on the mounting plate 20 and the pair of lifting cylinders 22, 2.
It is attached to the track frame 18 via 2 and can be rotated up and down to move up and down. However, the present invention is not limited to this, and it may be configured to be able to move forward and backward horizontally with respect to the earth and sand A by a cylinder or the like.

The arm 21 has its base end attached to the side surface at the end in the longitudinal direction of the track frame 18 via a shaft 23, and its tip end fixed to the lower part of the attachment plate 20.
The elevating cylinder 22 is arranged inside the arm 21, the cylinder base is fixed to the upper surface of the track frame 18 by a pin hinge 24, and the piston shaft tip is fixed to the lower part of the mounting plate 20 by a pin hinge 25. The track frame 18 has a number of track rollers at the bottom.
A plurality of carrier rollers are provided on the upper part, but if they are mounted as described above, they will not hinder traveling.

The face plate 19 may be fixed to the mounting plate 20, but it is preferable that the angle can be adjusted. That is, as shown in FIGS. 3 and 4, the lower portions of the face plate 19 and the mounting plate 20 are connected by pin hinges 26 at both ends in the longitudinal direction of the mounting plate 20, and a plurality of angles are provided at intervals in the longitudinal direction. The upper part of the face plate 19 and the upper part of the mounting plate 20 are connected to each other by a turnbuckle 27 for adjustment.

As shown in FIG. 3, by expanding and contracting the piston rod of the elevating cylinder 22, the face plate 19 moves up and down around the shaft 23 as the center of rotation, retracts the face plate 19 upward, and the foundation face (concrete face). Can be set on. The face plate 19 is adjusted by the turnbuckle 27 so that the inclination angle θ becomes 45 ° when set. Further, it goes without saying that the turnbuckle 27 can be set to an arbitrary inclination angle. The upper end of the face plate 19 is the top end 1
It is used as a measure at the top level when molding a. The angle can be adjusted not only by the turnbuckle but also by a cylinder or the like.

As shown in FIG. 4, the face plate 19 has
If necessary, side guides 28 are provided at both end portions thereof, and a crown cover 29 is provided at an upper end portion thereof. The side guides 28 stiffen the face plate 19, and also prevent the molded slope 1b from breaking at the end of the face plate 19 when the face plate 19 is moved after the molding of the earth and sand mold 1 is completed. It is provided for. The crown cover 29 is the face plate 1
It is provided to prevent dirt and sand from entering between the mounting plate 20 and the mounting plate 20.

The construction machine for earth and sand molds having the above construction is used to mold the earth and sand molds in the following procedure.

(1) The backhoe 11 is put on the foundation surface or the concrete surface that has already been placed, and the face plate 19 is attached to the inner end surface of the earth and sand A piled up at the installation position of the earth and sand formwork 1.
Is set and pressed at a predetermined inclination angle θ to form the top end 1a of the sand / sand mold 1 on the lower surface of the bucket 16, and at the same time, the sand / sand A is raked to the face plate 19 side and compacted, whereby a predetermined slope of the sand / sand mold 1 is obtained. The slope 1b having the above is formed. As shown in FIG. 4, the earth and sand mold 1 is molded into a predetermined shape over a predetermined unit length (length of the face plate 19).

(2) The face plate 19 is raised and retracted, and the backhoe 11 is moved by the unit length (the length of the face plate 19) to the sand mold 1
Traveling in the extending direction (longitudinal direction of the concrete structure), and then lowering and setting the face plate 19, the above (1)
Mold the unit length of the sand mold of. The face plate 19
Can be slid as it is by moving the backhoe 11 without raising and retracting.

(3) When the molding and running for the unit length of the earth and sand mold as described above are sequentially repeated and the earth and sand mold 1 on one side is completed, the earth and sand mold 1 on the other side is similarly formed.

When the pair of left and right earth and sand molds 1, 1 are completed,
As shown in FIG. 5, as in the conventional case, the RCC concrete 2 is cast and compacted in the flat inverted trapezoidal space formed by the sand and sand molds 1 and 1, and the sand and sand mold 1 is molded as described above. By repeating the pouring and compaction of concrete 2,
A concrete structure B such as a sabo dam is constructed.

In the case of unmanned construction, GPS is used.
Using the (Global Positioning System), G on the backhoe 11
A PS antenna, a receiver, a surveillance camera device, an automatic control device, etc. are mounted, and a remote operation station equipped with a GPS antenna, a receiver, a monitor of a surveillance camera, a controller, etc., performs remote control by digital radio or the like.

In the above, the example applied to the molding of the earth and sand mold such as the erosion control dam was explained, but it goes without saying that the present invention can be applied to the molding of the earth and sand mold of other concrete structures.

[0033]

Since the present invention is constructed as described above, the following effects can be obtained.

(1) When molding a sand mold for a concrete structure such as a sabo dam, a face plate is pressed against the end faces of the stacked sand, and only the top end of the sand is molded with a bucket of a traveling construction machine to obtain a desired shape. It is possible to mold the earth and sand mold having a shape, the skilled work of slope shaping unlike the conventional molding using only a bucket is unnecessary, the molding work is facilitated, and the working efficiency can be improved.

(2) Since it is only necessary to move and set the face plate with the traveling construction machine, the line of the earth and sand form can be easily set, and the earth and sand form having a good shape can be efficiently formed.

(3) Since it is only necessary to move and set the face plate with the traveling construction machine, unmanned construction becomes easy and it can be effectively applied to a dangerous site.

(4) By attaching the face plate to the track frame of the lower traveling body via the elevating mechanism and the advancing / retreating mechanism, the face plate can be easily and surely set at the molding position.

(5) By attaching the face plate to the face plate attaching member via the angle adjusting member, the slope of the slope of the earth and sand form and the height of the top can be arbitrarily set.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a construction machine for molding a sand and sand mold used in a method for molding a sand and sand mold of the present invention and a molding situation thereof.

2 is a plan view of the construction machine for molding the earth and sand form of FIG. 1. FIG.

FIG. 3 is a partially enlarged front view of the construction machine for molding the earth and sand form of FIG. 1.

FIG. 4 is a perspective view showing a face plate portion for forming a slope of a sand mold frame of the construction machine for molding a sand mold of FIG. 1.

FIG. 5 is a cross-sectional view showing an outline of an example of a sand / sand mold formed by the present invention.

[Explanation of symbols]

A ... Local sediment B: Concrete structure (sabo dam, etc.) 1 ... earth and sand formwork 1a ... top 1b ... Slope 2 ... Concrete (RCC, etc.) 10 ... Construction machine for earth and sand form forming 11 ... Backhoe 12 ... Upper swing body 13 ... Undercarriage 14 ... Boom 15 ... Arm 16 ... bucket 17 ... Crawler 18 ... Track frame 19 ... Face plate (side blade) 20 ... Mounting plate 21 ... Arm 22 ... Lifting cylinder 23 ... Axis 24 ... Pin hinge 25 ... Pin hinge 26 ... Pin hinge 27 ... Turnbuckle 28 ... Side guide 29 ... Crown cover

Claims (4)

[Claims] 1. A method for forming a sand and sand form which forms the piled earth and sand into a form of cast concrete, in which the end face of the piled sand and sand is provided on a traveling construction machine. Press the face plate for use and shape the top of the sand with the bucket of the traveling construction machine to bring the sand toward the face plate side and shape the slope of the sand form, and the sand form with a predetermined shape A method for molding a sand and sand mold, which comprises molding. 2. A construction machine for forming a sand and sand mold, wherein a lower traveling body of a traveling construction machine including an upper swing body and a lower traveling body equipped with a bucket is provided with a face plate for shaping a slope of the sand and sand mold. A construction machine for earth and sand mold forming, which is characterized by being provided. 3. The construction machine for forming a sand mold according to claim 2, wherein the face plate for shaping the slope of the sand mold is attached to the track frame of the lower traveling body through an elevating mechanism or a forward / backward moving mechanism. A construction machine for forming earth and sand molds, which is characterized in that 4. The construction machine for earth and sand mold forming according to claim 3, wherein a face plate mounting member is provided at a tip of the elevating mechanism or the advancing / retreating mechanism, and the earth and sand form frame is attached to the face plate mounting member through an angle adjusting member. A construction machine for earth and sand mold forming, which is equipped with a face plate for slope shaping.