JP2012041776A - Base material for hoisting gabion and method for laying gabion using the base material for hoisting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a base material for hoisting a gabion, allowing an installation operation to be efficiently performed on site.SOLUTION: A base material for hoisting comprises a metal base plate 10 to support a bottom face of a gabion C and a hoisting column member 40 detachably erected on the metal base plate. The hoisting column member is provided with an engaging part 41 to connect a hook of a crane. Use of the base material for hoisting allows the bottom face of the gabion C to be supported with the metal base plate 10, so that the hoisting column member 40 can be hoisted with a crane. Consequently, the gabion can be easily laid on various construction sites such as a slope. Safety in operation is enhanced and operation time can be reduced.

Description

  The present invention relates to a lifting base material for facilitating the laying work of a futon and a method for laying a futon using the lifting base.

  Various types of futons are sometimes used when performing civil engineering works such as revetment work, embankment slopes, river embankment slopes, etc., especially for the purpose of reinforcing and planting slopes (slopes).

  Both large and thin futons (drains) used in such construction work have a box shape (box) by combining a frame material with a metal net (metal net). Shape), and gravel material etc. is loaded inside, the upper lid is closed, and several of these are installed at the site of laying.

  Conventionally, when installing futons on the laying site, first transport the kite unit before assembly to the site (flat field), assemble the bottom and side surfaces on the site (flat field), deposit the required number, and then use the crane truck Was moved to the slope, and the anchor was fixed by the workers. Next, work to put cobble stone gravel into the arranged ridges is performed. Also in this case, gravel is moved by a crane vehicle and thrown in. Next, the gravel filled in the straw is leveled, pressed, and covered with a lid mesh (upper lid) disposed on the upper surface of the futon straw, and then the lid mesh is bound and fixed by appropriate means (for example, Patent Document 1).

  Futon is superior in water permeability, is flexible, and has the advantage of adapting well to changes in the ground. When installed on slopes (slopes), it effectively discharges spring water and seepage water, prevents erosion of the ground surface, provides good calming of the soil spray, and enables greening. Demonstrate suitable efficacy. Recently, the spread of highly corrosion-resistant wire has expanded the application scenes other than slopes. For example, beach engineering works.

JP 2009-133302 A

  The first problem is that the construction cost increases.

  Many traditional futons are assembled at the laying site (flat ground), and are temporarily deposited on the flat ground. After the futons are arranged on the slope, etc., they are filled with gravel. If it is going to install no futon hoe on a slope, etc., a large number of workers are required, and it is difficult to reduce this worker. Moreover, since the futon is assembled at the laying site and the futon is arranged on the slope, the gravel filling work is inevitably extended. For this reason, it is difficult to shorten the construction days, and it is very difficult to reduce construction costs including labor costs.

  This problem is the same even if the place where the futon is installed is a place other than the slope. This is because the sequence of operations is the same: assembling futons on site, arranging and fixing the bags, filling with gravel, leveling, rolling, and closing the top lid.

  The second problem is that it is particularly troublesome to ensure safety during work on the slope. A lot of workers are placed on the slope, and the equipment for safety (eg rope) is used for long periods of time, such as installing futon bowls, filling gravel, leveling gravel, rolling and closing the top lid. Is required for the number of people. It took time to prepare before work, such as driving anchors in places where there were few trees mooring the rope.

  Then, the objective of this invention is enabling it to perform the laying operation | work of a futon straw efficiently.

  In order to achieve the above-mentioned object and to solve the problem, a futon basket lifting base material according to claim 1 is detachably mounted on a metal board for supporting the bottom face of the futon bowl. A lifting column member is provided to be erected, and an engaging portion is provided on the lifting column member to be connected to a hoist hook.

  Since the bottom of the futon is supported by the metal substrate, the bottom of the futon is not deformed even when the futon is lifted through the lifting column while the futon is filled with gravel. As a result, the side surface of the futon is not deformed, and the lifting movement in a state in which gravel is packed is possible. The lifting column member is provided with an engaging portion that serves as a means for connecting a hook when the futon is lifted by a hoist (a crane vehicle or the like). The engaging portion can be provided as, for example, a collar portion, a ring portion, a hole portion, or the like.

  According to a second aspect of the present invention, the lifting base material for the futon basket is provided with a plurality of standing holes for fitting the lower end portion of the lifting column material in the metal substrate, and at the lower portion of the lifting column material. A plurality of lifting column members that are provided with fixing holes for penetrating the fixed insertion material, and in which the fixed insertion material is passed through the fixing holes of the lifting column material in which the lower end portions are fitted into the standing holes. Erected.

  Since it is desirable that a plurality of lifting column members are erected on the metal substrate, a plurality of erection holes are provided in the metal substrate, and the suspension column member is fitted (or loosely fitted) at the lower end portion of the lifting column member. If the fixed insertion member is penetrated, the plurality of lifting column members can be easily fixed upright. In this case, a fixing hole through which the fixed insertion member passes is provided in the lower part of the lifting column.

  A lifting base material for futons according to claim 3 is a channel material or a square tube (long protective cover material) that protects the lower ends of a plurality of lifting column members fitted into the standing holes, It is arranged on the back surface of the metal substrate. If a U-shaped channel material or square tube is provided at the lower end of the lifting column, the channel material or square tube can be used even if the futon is placed directly on the slope (the bottom is grounded to the ground) Since the lower end portion of the lifting column member is protected, no external force is applied to the lower end portion of the lifting column member, and the fixed state of the lifting column member can be stably maintained.

  According to a fourth aspect of the present invention, there is provided a method for laying a futon basket on the metal substrate according to the first aspect. After moving up to the laying site, a pillar standing stage for standing the pillar material, a gravel filling stage for filling the futon wall with gravel, a moving stage for lifting the lifting column material and moving the futon bowl, It has a column removal stage for removing the lifting column material, and a substrate removal stage for removing the metal substrate after the column removal stage.

  Either the heel mounting stage or the pillar standing stage may be prioritized. After placing the futon on the metal substrate, the lifting pillar material may be erected on the metal substrate, or after the lifting pillar material is erected on the metal substrate, the futon is placed on the metal substrate. A spear may be placed. The dredging stage, the pillar standing stage, and the gravel filling stage can all be performed at a place other than the futon bowl. Since the futon bowl filled with gravel can be moved freely by lifting the lifting column material, the moving stage (lifting movement to the transport vehicle, The column removal stage of removing the lifting column material is carried out through the deposition movement from the transport vehicle and the installation movement from the deposition site to the installation site.

  The work of the pillar removal stage and the board removal stage can be easily performed by a small number of people even when the futon is in contact with the ground. The lifting column can be easily removed, and the metal substrate can be easily removed by using, for example, a hoist (a crane truck or the like). It can also be pulled out using a hoisting device.

  According to the lifting base material and the method of laying a futon using the lifting base according to the present invention, the operation of installing the futon can be performed efficiently on site.

FIG. 1 shows one embodiment of a futon basket lifting base material according to the present invention.
The lifting base material of the futon basket includes a metal substrate 10 for supporting the bottom surface of the futon basket C, and a lifting column member 20 detachably provided on the metal substrate 10. An annular portion 30 is provided at the upper end portion of the lifting column member 20.

  The metal substrate 10 has substantially the same size as the bottom surface of the futon bowl C. This is for reliably protecting the bottom surface of the futon bag C. In consideration of the convenience for pulling out (removing) the metal substrate 10 after installation, it is desirable that the size of the metal substrate 10 is slightly increased. This is because a connecting means with a crane or a traction device is provided at the location. The metal substrate 10 need not be unnecessarily large. This is because the work may be disturbed when removing (when removing). As the metal substrate 10, for example, a steel plate is used. It is easy to obtain and economical.

  The metal substrate 10 only needs to have a thickness that does not bend significantly when the futon ridge C is filled with gravel (pebbles) for filling stones and lifted. For example, a steel plate of 2 to 3 mm can withstand practical use with little bending when lifted. Of course, the wall thickness may be 3 mm or more, for example, 3 to 10 mm. However, as the wall thickness increases, the removal operation (sampling operation) after dredging may become complicated.

  On the upper surface of the metal substrate 10 (the side where the futon basket C is disposed), an appropriate number, for example, six lifting column members 20 are detachably installed. Since it is preferable that the area of the metal substrate 10 and the area of the bottom surface of the futon bag C are substantially the same size, when the lifting column 20 is erected, an empty futon bag C is placed on the metal substrate 10. After placing. It is also possible to place the futon bag C on the metal substrate 10 after the lifting column 20 is erected.

  In this embodiment, for example, the metal substrate 10 is provided with the same number of upright holes 11 (six in this embodiment) as the lifting pillars 20 are detachably erected. (See FIG. 2), the lower end portion of the lifting column member 20 is inserted into the standing hole 11 (see FIG. 3), and the fixed insertion member 24 is inserted into the fixing hole 21 provided in the lower portion of the lifting column member 20. It penetrates (see FIG. 4). The standing holes 11 are desirably arranged at equal intervals in the longitudinal direction and the short direction of the metal substrate 10 so that the weight balance during lifting can be maintained. If the fixing holes 21 are arranged in parallel on a straight line, the fixed insertion member 24 can use a linear metal wire (for example, a reinforcing bar material).

  Preferably, as shown in FIGS. 5 and 6, the lower end portion of the lifting column member 20 is in contact with the ground surface on the back surface of the metal substrate 10 (the surface opposite to the surface where the futon C is disposed). It is desirable to provide a channel material 14 that protects against this. As the channel material 14, for example, a metal long material having a substantially U-shaped or C-shaped cross section can be used.

  The channel material 14 may have an open surface facing downward or upward. This is because it is the same in that it can be protected so that the lower end portion of the lifting column 20 is not in contact with the ground at the time of grounding. Further, a square tube may be used in place of the channel material 14. When the open surface of the channel material 14 is faced downward, and when a square tube is used, a hole portion through which the lower portion of the lifting column member 20 is inserted is provided in a portion overlapping the standing hole 11.

  After the fixed insertion member 24 is passed through the fixing hole 21 and the lifting column 20 is erected and fixed, as shown in FIG. 7, if the ring portion 30 is attached to the upper portion of the lifting column 20, It becomes the base material for the lifting of the futon shown in FIG.

  In actual work, since an empty futon basket C is placed on the metal substrate 10 before assembling, gravel filling and fixing of the lid (not shown) of the futon bowl C are performed before attaching the ring portion 30. I do. The ring part 30 is attached after the lid of the futon bag C is closed.

  The ring portion 30 is constituted by, for example, an annular member 31 for engaging with a hook of a heavy machine, and a screwing member 32 provided at a lower portion of the annular member 31. The annular member 31 does not have to be a complete ring (closed ring). What is necessary is just a member which forms a ring as a whole when the screwing member 32 is fixed to the lower part.

  The screwing member 32 is formed, for example, by forming a screw thread inside a short ring material. If the thread S (see FIG. 7) is formed on the upper part of the lifting column 20, the threading member 32 is screwed onto the thread S so that the ring 20 is connected to the upper part of the lifting column 20. The part 30 can be detachably fixed.

  Next, a method for laying futons according to claim 4 will be described with reference to FIG.

  The procedure for laying the futon basket is as follows. First, an operation for placing the futon basket C on the metal substrate 10 is performed (S1). The column erecting step (S2) for erecting the lifting column 20 on the substrate 10 is performed.

  It is desirable that the bottom surface of the metal substrate 10 be formed to have substantially the same shape and area as the bottom surface of the futon bowl C. In this case, alignment in the placement operation of the futon bowl C is also simplified. As already described, it is desirable that the metal substrate 10 has a slightly larger dimension in the drawing direction. Usually, the longitudinal dimension of the metal substrate 10 may be designed to be slightly larger than the longitudinal direction of the bottom surface of the futon C. For example, it is increased by 5 to 15 cm.

  The column erecting step (S2) for erecting the lifting column member 20 may be performed through the eaves mounting step (S1) or before the eaves mounting step (S1). The futon C may be placed on the metal substrate 10 after the material 20 is erected.

  Next, the gravel filling step (S3) for filling gravel into the futon candy C is performed. Filling the futon candy C with gravel (filled stones) may be performed using heavy machinery or manually. This is because all the operations up to the gravel filling stage (S3) can be performed in a flat place, and there is no danger even if the filling operation is performed manually (manual operation). After filling with gravel, the upper lid is closed, and the ring portion 30 is attached to the upper part of the lifting column 20. What is necessary is just to screw the screwing member 32 in the thread S (refer FIG. 7) shape | molded on the upper part of the column material 20 for lifting.

  Next, the operation of the moving stage (S4) of lifting the lifting column 20 and moving the futon C is performed. Since the ring portion 30 is provided on the upper part of the lifting column member 20, the futon C can be moved using a hoist (a crane vehicle or the like). The hook of a hoist (a crane vehicle or the like) may be engaged with the ring portion 30 to drive the crane vehicle or the like.

  Futon 篭 C filled with gravel can be kept (stored) in the work place for a while, or may be immediately transported to the laying site. Since both operations are simple, it can be performed by a small number of workers (for example, one to three people). When the futon basket C is stored for a while, the futon basket C is moved to a nearby storage place using a crane vehicle or the like. When transporting Futon 篭 C to the site, it is mounted on the loading platform of the truck vehicle using a crane vehicle or the like, transported to the laying site by the truck vehicle, and then unloaded from the truck vehicle again by the crane vehicle. . The futon basket C lowered from the truck bed may be stored in the vicinity of the site for a while, or may be immediately moved to the laying site without storing.

  Next, after the futon basket C is arranged at the laying site, the column removing step (S5) for removing the lifting column material 20 is performed.

  For example, when the lifting column member 20 is fixed using the fixed insertion member 24 as shown in FIG. 4, the operation at this stage is performed by pulling out the fixed insertion member 24 and then lifting the column. The material 20 may be pulled out. Since it is a simple task, it can be performed by a small number of workers (for example, one to three people).

  Finally, a substrate removal step (S6) for removing the metal substrate 10 is performed.

  In this operation, for example, a hole (not shown) is provided at the longitudinal end of the metal substrate 10, a wire ring is attached to the hole, and a hook of a crane truck is engaged with the wire ring. Can be pulled out. The same applies when using a hoisting device. For example, a wire may be engaged with a hole provided at the end of the metal substrate 10 in the longitudinal direction, and a winch device may be disposed at the other end of the wire and driven up (pulled). Since this is a simple work, this stage of work can be performed by a small number of workers (for example, one to three people).

  As described above, according to such a laying method, the futon basket C filled with gravel is made before laying, and the futon bowl C can be moved to the laying site and laid as it is. For this reason, the operation | work at the time of laying work becomes very easy. This is because it is not necessary to perform dangerous gravel filling and gravel leveling work or the like at the laying site (such as an inclined land) as in the prior art.

  Unlike the conventional laying work, a work (S5) for removing the lifting column material 20 and a work (S6) for removing the metal substrate 10 are required. Compared to leveling work and gravel, it is much easier, safer and requires much less time. Therefore, it is possible to efficiently perform the installation work of the futon basket C at the laying site.

  In addition, although the said embodiment demonstrated that the ring part (30) was attached to the lifting column material (20), as shown in FIG. 9, the plate-shaped lifting column material which provided the hole part 41 up and down was shown. 40 may be used. The hole 41 may be provided with the same size. If it carries out like this, the column material 40 for lifting will become a vertically symmetrical member in a longitudinal direction.

  In this case, the standing hole 42 provided in the metal substrate 10 is rectangular or elliptical so that one end of the plate-like lifting column 40 can be inserted. Further, it is desirable that the standing hole 42 has a width slightly larger than the thickness of the lifting column 40 so that the inserted lifting column 40 has some play. This is because when the futon basket C is disposed on the inclined surface, the lifting column 40 moves in the vertical direction to facilitate the lifting balance.

  As shown in FIGS. 10 and 11, the channel material 44 disposed on the back surface of the lifting column member 40 can be one having a substantially C-shaped cross section, and the closing surface 44-1 is disposed downward. It is desirable to do. Other portions, for example, the size of the metal substrate 10, the arrangement order of the futons C, etc. may be the same as in the above embodiment.

  By using this vertically symmetrical lifting column member 40, when one end portion is inserted into the standing hole 42 of the metal substrate 10, it is possible to perform the standing work without worrying about the top and bottom, so that the working efficiency is good. Become.

  Since the channel material 44 having the closing surface 44-1 is disposed on the back surface of the metal substrate 10, the lower holes 41 on the lifting column 40 are aligned at the same vertical position. The aligned lower holes 41 function as fixing holes through which the fixed insertion member 24 is inserted.

  On the other hand, the hole 41 located on the upper side of the hoisting column member 40 at the time of standing functions as an engaging portion for connecting with the hook of the hoist. If an appropriate ring is attached to the upper hole portion 41 and the ring is locked to the crane hook, it can be lifted. As the ring, for example, an annular wire can be used.

  Since the holes 41 provided symmetrically in the vertical direction serve as engaging portions and fixing holes of the lifting column member 40, the component configuration is simplified compared to the lifting column member (20) of the above embodiment. It becomes possible to reduce the manufacturing cost.

  The lifting column according to the present invention has been described as being fixed via the fixed insertion member 24. However, when a columnar or prismatic lifting column is used, a thread is cut at the lower end. Alternatively, it may be fastened and fixed via a nut. The engaging part should just be what can be connected with the hook of a hoist directly or indirectly via a wire.

1 is a perspective view illustrating a lifting base material according to a first embodiment. 1 is a perspective view illustrating a metal substrate according to a first embodiment. It is a figure which illustrates the state which inserts the lower end part of the column material for lifting in the metal substrate of FIG. It is a figure which illustrates the fixed insertion material which concerns on 1st embodiment. It is a perspective view which illustrates the channel material concerning a first embodiment. It is a figure which shows the relationship between the channel material which concerns on 1st embodiment, and the column material for suspension. It is a figure which illustrates the attachment state of the ring part which concerns on 1st embodiment. It is a block diagram which shows the laying method of the futon which concerns on embodiment. It is a perspective view which illustrates the base material for lifting which concerns on 2nd embodiment. It is a perspective view which illustrates the channel material concerning a second embodiment. It is a figure which shows the relationship between the channel material which concerns on 2nd embodiment, and the column material for lifting.

DESCRIPTION OF SYMBOLS 10 Metal substrate 11, 42 Standing hole 14, 44 Channel material 15 Insertion hole 20, 40 Lifting pillar material 21 Fixing hole 24 Fixed insertion material 30 Ring part 31 Ring member (engagement part)
32 screwing member 41 hole (engagement part, fixing hole)
44-1 Closure surface C Futon Ｓ S Thread

Claims (4)

A metal substrate for supporting the bottom of the futon bowl,
While equipped with a lifting column that is detachably mounted on this metal substrate,
A lifting base material for a futon, characterized in that an engaging portion is provided on the lifting pillar material to be connected to a hook of a hoist. While providing a plurality of standing holes for fitting the lower end portion of the lifting column material on the metal substrate,
In the lower part of the lifting column material, a fixing hole for allowing the fixed insertion material to pass therethrough is provided,
A plurality of lifting pillars are erected by passing through a fixed insertion member in a fixing hole of the lifting pillar member in which a lower end portion is fitted in the standing hole. Item 1. A base material for lifting futons according to item 1.   3. A futon according to claim 1 or 2, wherein a channel material or a square tube that protects the lower ends of the plurality of hoisting column members fitted in the standing holes is arranged on the back surface of the metal substrate. Base material for lifting. A bag mounting stage for mounting a futon on the metal substrate according to claim 1;
Before and after the saddle placement stage, a pillar standing stage for standing a lifting pillar material on the metal substrate;
Gravel filling stage to fill the futon with gravel,
A moving stage for lifting the lifting column and moving the futon;
After moving to the laying site, a column removal stage to remove the lifting column material,
A method for laying futons having a substrate removal step of removing the metal substrate after the pillar removal step.

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