JPH04105197U - Spat device for slide form in shield tunnel - Google Patents

Abstract

(57) [Summary] [Purpose] Easily removes the spat fixing pin. [Structure] A spat device that sets a slide form 16 provided for placing secondary lining concrete of a segment 14 incorporated into a desired shape. Spat fixing socket 1 with fixing hole 1a
and a spat 2 which is fixed to this sput fixing socket 1 and has substantially rectangular spatt fixing holes 2a that are bored at intervals along the length direction and correspond to the sputter fixing holes 1a, and this sprat 2. A spat device for a slide form in a shield tunnel, comprising a spat fixing hole 2a and a pair of substantially wedge-shaped fixing pins 3a and 3b inserted into the sputter fixing hole 1a from both directions.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention can be used when placing secondary lining concrete when constructing a shield tunnel. This invention relates to a spat device for slide foam.

0002

[Conventional technology]

Conventionally, slide hoods were used when placing secondary lining concrete for shield tunnels. The spat method is one of the concrete pouring thickness adjustment and holding devices for foams. Ru. This method, as shown in Figure 9, has a through-hole spatula for adjusting the concrete placement thickness. A pin-shaped sput 12 with a circular cross section provided with a fixing hole 12a, and a sput fixing hole 12a. A sprat fixing hole 11a having the same diameter as the hole 12a is inserted through the sput 12 to receive it. It consists of a sputter fixing socket 11 that holds the holder in place, and the fixing pin 13 has a round bar shape. As shown in FIG. 10, the slide form 16 is A suitable number of them are arranged radially at a suitable pitch.

0003 That is, the spat 12 inserted into the spat fixing socket 11 is Depending on the thickness of the reed, install a round bar-shaped spat fixing pin 13 with a circular cross section. Insert it into the spat fixing holes 11a and 12a and fix it in the spat fixing socket 11. , adjust the pouring thickness of the secondary lining concrete 15 provided inside the segment 14, and maintain it. The slide form 16 will float up due to the buoyant force that acts during concrete pouring. It was fixed so that it wouldn't happen.

0004

[Problem that the idea aims to solve]

However, with conventional spat equipment, the buoyancy force that acts during secondary lining concrete placement As a result, the spat fixing pin 13 is tightened, and the spat fixing pin 13 is punched out. If you force it to punch out, the head of the spat fixing pin 13 will be deformed and the spat will be damaged. The pad fixing pin 13 cannot be used for other purposes. Also, in the spat fixing socket 11 The provided threaded portion is also tightly tightened and becomes difficult to turn. Therefore, workability is poor. However, there are issues such as requiring an extra person to remove the equipment and reducing the work space. Ta.

[0005] This invention was proposed in view of the above points, and its purpose is to Slide folio in shield tunnel that makes it easy to remove pad fixing pins. The present invention provides a sputtering device for use on a team.

[0006]

[Means to solve the problem]

The present invention enables secondary lining concrete placement of segments 14 incorporated into a desired shape. In the spat device that sets the slide form 16 provided for The spat device is provided on the slide form 16 and fixes a substantially rectangular spat. A spatt fixing socket 1 having a hole 1a and fixing to this spatt fixing socket 1. are bored at intervals along the length direction, and are paired with the spout fixing holes 1a. A sputter 2 having a corresponding substantially rectangular sputter fixing hole 2a, and a sputter of this sputter 2. Insert from both directions into the pad fixing hole 2a and the spat fixing hole 1a. By forming a pair of substantially wedge-shaped fixing pins 3a and 3b, the above has achieved its purpose.

[0007]

[Effect]

In the present invention, the spat fixing hole 2a of the spat 2 and the spat of the spat fixing socket 1 are The pad fixing holes 1a are approximately rectangular, and the fixing pins 3a and 3b inserted into these holes are approximately rectangular. A pair of wedge-shaped fixing pins 3a and 3b are placed facing each other from both sides. and insert them from both sides of the spat fixing hole 1a of the spat fixing socket 1. Adjust the amount and drive them into each other, and after the secondary lining concrete hardens, fixing pins 3a, 3 When removing b, tap the protruding tips of each fixing pin 3a and 3b to remove the fixing pin. 3a and 3b are wedge-shaped, so they can be removed extremely easily. are doing.

[0008]

【Example】 FIG. 1 is a perspective view of one embodiment of the present invention. 1 in the figure is a slide photo as is well known. This spatt fixing socket attaches to the base (not shown). A spat 2 is provided on the socket 1, and it is attached to the spat fixing socket 1 and the spat 2. A pair of substantially wedge-shaped fixing pins 3a, 3b are provided in substantially rectangular holes 1a, 2a formed respectively. are inserted from both sides of the sput fixing holes 1a and 2a.

[0009] Therefore, the slide form device according to the present invention has a slide form as shown in FIG. Spat fixing socket 1 and spat 2 attached to form 16 by screwing , a pair of fixing pins 3a, 3b, etc.

0010 Figures 2 and 3 show details of the spat fixing socket 1. The socket 1 has a cylindrical shape with a through hole 1b in the axial direction, and is preferably located in the upper part. A substantially rectangular hole 1a is formed in the hole 1a. This hole 1a penetrates in a direction perpendicular to the axial direction. It is formed as follows. Furthermore, the diameter of the lower part is slightly smaller than that of the upper part. , and a threaded portion 1c for attaching to the slide form 16 is formed on the outer periphery of the lower part. has been done.

[0011] Figure 4 shows details of the spat 2, which is shown in cross section in Figure 3. As shown, it has a cylindrical shape, and the lower part is tapered. Also, the upper part A substantially rectangular hole 2a is formed in a suitable position and extends perpendicularly to the axial direction. this In the illustrated example, only one hole 2a is shown for convenience, but a plurality of holes 2a are formed at intervals and can be used. A hole 2a at a suitable position is selected as appropriate for the purpose.

0012 FIG. 6 shows a pair of fixing pins 3a, 3b. Each fixing pin 3a, 3b is on the tip side. It gradually tapers towards the end, becoming almost wedge-shaped. Also, perpendicular to the length direction The cross-sectional shape in the direction is approximately rectangular. Then, set the tips facing each other as shown. will be played. FIG. 7 shows a side view when viewed from the direction of the arrow in FIG.

[0013] Figure 8 shows the state in which the sputter is inserted into the through hole 1b of the sputter fixing socket 2, and insert the secondary lining into the spat fixing hole 1a of the spat fixing socket 1. In order to obtain the desired thickness of concrete pouring, the sputter fixing hole 2a on the sputter 2 side is Select and match, and insert a pair of fixing pins 3a, 3 into these spat fixing holes 1a, 2a. By adjusting the insertion amount of b and driving them into each other from both sides facing each other. , the slide form can be easily fixed.

[0014] In this case, since the fixing pins 3a and 3b are approximately wedge-shaped, they can be easily inserted. Ma In addition, when removing the protruding tip, use a hammer, etc. ( Since it is wedge-shaped, it can be easily removed by hitting it with a hammer (not shown).

[0015]

[Effect of the idea]

As described above, according to the present invention, the secondary cover of the segment 14 incorporated into the desired shape Spat for setting the slide form 16 for concrete pouring In the device, this spat device is provided on the slide form 16 and is approximately A sputter fixing socket 1 having a rectangular sputter fixing hole 1a and fixed to the fixed socket 1, bored at intervals along the length, and the spacing a sput 2 having a substantially rectangular sput fixing hole 2a corresponding to the cut fixing hole 1a; Both the spat fixing hole 2a of this spat 2 and the spat fixing hole 1a It consists of a pair of substantially wedge-shaped fixing pins 3a and 3b that are inserted from both directions. , the slide form fixing holes 1a and 2a are approximately rectangular, and a fixing pin 3 is inserted therein. Since a and 3b are wedge-shaped, it is easy to insert and remove, improving work efficiency. There are effects such as.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of one embodiment of the present invention.

FIG. 2 is an explanatory diagram of the spout fixing socket of the present invention.

FIG. 3 is a plan view of the same as above.

FIG. 4 is an explanatory diagram of the spat according to the present invention.

FIG. 5 is a sectional view taken along line AA in FIG. 4;

FIG. 6 is an explanatory diagram of the fixing pin of the present invention.

7 is a side view seen from the direction of the arrow in FIG. 6. FIG.

FIG. 8 is an explanatory diagram of the usage state of the present invention.

FIG. 9 is an exploded perspective view of a conventional spat device.

FIG. 10 is an explanatory diagram showing a state in which secondary lining concrete is placed in a segment.

[Explanation of symbols]

1 Spat fixing socket 1a Spat fixing hole 2 spat 2a Spat fixing hole 3a Fixed pin 3b Fixed pin

Claims (1)

[Scope of utility model registration request] 1. A sputtering device for setting a slide form 16 provided for placing secondary lining concrete for segments 14 assembled into a desired shape, the spat device being provided on the slide form 16 and configured to form a substantially rectangular concrete lining. A spat fixing socket 1 having a sputter fixing hole 1a, and a substantially rectangular spat fixing member that is fixed to the sprat fixing socket 1 and is bored at intervals along the length direction and corresponds to the sput fixing hole 1a. A sputter 2 having a hole 2a and a sputter fixing hole 2a of this sputter 2
and a pair of substantially wedge-shaped fixing pins 3a and 3b inserted into the sputter fixing hole 1a from both directions, respectively.A spat device for slide foam in a shield tunnel.