JPS5931316A - Brace material for landslide protection wall - Google Patents

Abstract

PURPOSE:To enable inside and outside pieces to be freely connected or separated for reducing the number of connecting processes by a method in which the inside piece is made up of a central material and branch materials for brace and also the outside piece is made up of middle receiving materials, brace receiving materials, connecting plates, and connecting plates for waling. CONSTITUTION:An inside piece A is made up of a central material 10a and branch materials 11a for brace provided on both left and right sides of the material 10a. An outside piece B is made up of middle receiving materials 10b, brace receiving materials 11b positioned on both sides of the mateials 10b, a connecting plate 12 connecting the receiving materials, and a connecting plate 13 for waling. The outside piece B is lifted up through a hanging metal 17 by means of a crane, etc., contacted with the inside of the waling 2, and clamped with a bolt. The inside piece A is contacted with the outside of the connecting plate 12 and clamped with the bolt through end plates 18 and 19. Accordingly, the outside and inside pieces B and A are integrally combined with each other and therefore, a brace material is completed.

Description

[Detailed Description of the Invention] The present invention relates to flint material for securing piles used when constructing underground structures of reinforced steel buildings, and in particular, to simplify assembly work on site and at the same time to provide convenience during transportation. ,
This relates to a so-called prefabricated flint material, which is constructed entirely in two pieces.

As is well known, when carrying out mountain protection work, flint is generally used to prevent the surrounding ground from collapsing, although it depends on the scale of the root cutting. The use of flint increases its usefulness as it allows for a wider strut span or bending span. This effect becomes more noticeable as the size of the flint increases, but
When flint materials are made larger, the current situation is that it is impossible to transport them to the site and then transport them once they are assembled, as described below.

This point will be explained in detail below.

As shown in Fig. 1, the commonly used fire pit is a 2+
(After arranging 21, cut beam (3
) is assembled into a triangular planar shape at the intersection of the upright and the strut for the purpose of reinforcement in a latticework mountain-stop frame (41 (4'l) Similarly, the receiving piece (51 (6)) as a single member is fastened using bolts and nuts, and the support piece (2) and the strut (
For 3), each corresponding surface was also constructed using bolt stitching.

In this way, conventional flint materials are used by assembling the main material and support piece as single materials by tightening bolts each time, so installation and removal requires a lot of time and effort. Also, there was a problem in ensuring accurate connection. In view of this point, recently, as seen in Japanese Utility Model Publication No. 54-25285, trapezoidal flint pieces (7) are assembled in advance as parts, and it is possible to make the corresponding parts without assembling single pieces each time on site. A method has been proposed in which pieces need to be flinted as they are.
in .

However, this method also has the following drawbacks, and a solution has been sought. In other words, the Monoke shown in the same figure is a complete piece and is welded into a trapezoidal shape, so it has to be bulky, so in practice there is a limit to its size. However, it was not always possible to provide flint pieces that met the design specifications.

Looking at the current situation, trucks must be used to transport MIJ-recorded flint pieces to construction sites, etc., but in that case, the width must be within 2.5m and the height must be within 4m (including the height of the truck bed). Due to the limitations, there was a drawback that it was practically impossible to transport unless the flint pieces were of a size that fit within the limits. Therefore, in the design specifications, for example, it is practically impossible to provide large flint pieces used in places where the span of the strut exceeds 6 m.
There it is.

The present invention aims to provide a new flint material that can solve the above-mentioned difficulties, and has a new structure for flint material, which is indispensable in relatively large-scale mountain protection work, and is especially suitable for use on site. installation, removal, and delivery to the site,
It is characterized by the fact that the entire flint is divided into two pieces that can be moved in and out for convenient transportation.

The present invention will now be described in detail with reference to the illustrated embodiments. In FIG. 4, reference numeral AVi represents the inner piece constituting the flint sound of the present invention, and reference numeral B represents the outer piece. Therefore, the inner piece A consists of a central material (10a) and flint branches (lla) arranged on both the left and right sides of the central material (10a),
On the other hand, the outer bead B has a middle support material (10b) corresponding to the center material (10a), and flint materials (
llb) (llb), a connecting plate Q21 that connects these receiving materials to each other, and a connecting plate for raising the belly (13), and each part of the central material, branch material, and receiving material is all H-shaped. It is allowed to be made of steel.

Note that the member indicated by the symbol u4j (15) is a reinforcing plate,
On the other hand, the Monoke Koshizuri indicated by the reference numeral (16) is a metal fitting, and 0η is a hanging metal fitting 1 (see Figs. 6 to 8). Further, end plates 0 and 11 are attached to each end surface of the flint branch material and center material, respectively.

The flint material of the present invention has the above-described structure, and is used in the following manner. As shown in Fig. 4, the outer piece B is hoisted by a crane or the like via the hanging fitting (17), brought into contact with the inside of the vent (2), and then fastened to the vent with bolts and nuts. do.

Next, the inner piece A is placed on the outside of the connecting plate 02 of the outer piece B as shown in the figure, and both are tightened with bolts and nuts through the bolt holes (2) previously drilled in the end plate 02 (11). In this way, the outer piece and the inner piece are connected together to form one completed piece of flint, to which the strut (3) can be fastened as shown. This means that the lζζ nails have been installed.As described above, according to the present invention, it is possible to save the effort of attaching a receiving piece etc. to a single piece of flint each time and completing the construction as in the conventional method, and it is possible to simply install the outside piece. All you need to do is connect all the two parts that are separated into inner pieces.
Assembly man-hours are significantly reduced compared to conventional methods. On top of that 2
Since each piece is a member, it is relatively small, and as a result, it has the advantage that it can be transported by truck without being restricted by height restrictions etc. if it is in a divided state.

However, as shown in FIGS. 9A to 9C, it is also possible to make all the inner pieces A have the same dimensions, while only the outer beads are made larger sequentially as shown by symbols B1 to B3. In this case, the inner piece A can be fully standardized, which is even more advantageous. However, the present invention does not require the standardization of the inner piece A, but is characterized by the fact that the flint material as a finished product is made of inner and outer pieces that can be freely moved toward and away from each other.

In addition, in the present invention, when removing the flint material once installed, the operation may be performed in the reverse direction of the installation process.

As explained in detail above, since the flint of the present invention is entirely composed of inner and outer pieces, flint of any size according to the PH11 specification of the strut span can be prefabricated to meet the needs of the site. It has a great practical effect in that it can be supplied freely and there are no restrictions on size when transporting it.

[Brief explanation of the drawing]

Figures 1 to 3 are perspective views for explaining conventional flints for securing piles, Figure 4 is a plan view of the flint of the present invention, and Figure 5 is an assembled completed view of the flint of the present invention. Figure 6 is a plan view of the metal fittings for the seat, Figure 7 is a sectional view of the hanging metal fittings, Figure 8 is a front view of the same, and Figure 9 is a plan view of the metal fittings for the seat.
Figures A to 90 are plan views showing another embodiment of the present invention in an assembled state. (10a) (10b): Core material (lla) Ql
b): Branch material for flint a2): Linking board (13
1? Connecting plate for raising the stomach a 0■: Reinforcement plate a6)
: The seat is a metal fitting Q7) : Hanging metal fitting a8) (11: l
17+1 Marufuji Sheet Pile Co., Ltd. Agent Ashi 1) Naoe 79 Figure 2 Figure 4

Claims (2)

[Claims] (1) The inner piece is composed of the center material and the flint branches attached to both sides of the center material, and the intermediate support material corresponding to the center material and the flint support materials located on both wings of the center material are connected to the connecting plate and the flint support material. 1. A flint material for securing piles, characterized in that an outer piece connected by a connecting plate can be connected to the inner piece so as to be able to come into contact with and be separated from the inner piece. (2) The flint phase for locking a pile according to claim 1, wherein the dimensions of the inner piece are constant, and the dimensions of only the outer piece are different, so that these outer pieces and the inner piece can be freely brought into contact with and separated from each other. .