JPS60102430A - Frame retaining wall and frame structure - Google Patents

Abstract

PURPOSE:To obtain earthquake-proof retaining wall durable against earth pressures by using a block consisting of a surface part, a stay part in which H- shaped slabs are arranged into a V-shape, a reinforcement part, four tops, two bottoms, and deformed steel bars for screw between the ends of the stays. CONSTITUTION:The block for a frame retaining wall consists of a surface part 1, a stay part 2 in which two H-shaped steel fiber-reinforced concrete slabs are arranged into V-shape, a reinforcement part 3 leading from the back 1' of the surface part 1 to the end of the stay part 2, four tops of an extended rectangular plate form, two bottoms 5, and deformed steel bars for screws between ends of the stay parts 2. The right sides of two bottom slabs of single block 21 in the second stage and the left sides of two bottom slabs of the block 22 are fitted into a total four top slabs of 12 blocks in the lowest stage, and two bottom slabs of the block 3 in the third stage are fitted into the top slabs of the blocks 21 and 22 and clamped with bolts.

Description

[Detailed description of the invention] B. This invention relates to retaining walls and retaining walls.

By using an appropriate precast concrete product for retaining walls or retaining walls that are large in scale and have a high wall height, the construction period can be shortened and construction costs can be reduced.
Moreover, the aim is to construct retaining walls or earth retaining structures with earthquake resistance.

Nowadays, most large-scale retaining walls with large wall heights are made of cast-in-place reinforced concrete structures, and even large-scale retaining walls have 8 to 10 small blocks per square meter.
They are carefully stacked one by one by hand. However, today, with the progress and larger scale of civil engineering construction machinery, the speed and economic efficiency of civil engineering work has been dramatically improved, and the modernization of retaining walls and earth retaining works is urgently needed. It should be considered an urgent matter.

So, the surface area of this frame retaining wall block is as large as 1271 to 1.5 tons, and the surface area is 12 to 2.5 tons. By building up a large number of them, we will construct a unique framework that can fully meet the following requirements.

Next, let's talk about single blocks. The front part is a rectangular plate made of steel fiber-reinforced concrete, and the backing part is made up of two H-shaped steel fiber-reinforced concrete slabs arranged in a V-shape at right angles to the back of the front part.

The four tops and two bottoms created by arranging the two I-shaped slabs in a V-shape are seen from the back of the elbow. ,
Construct a unique honeycomb-like framework. Therefore, I created several single pro, 7 aggregate structures, and combined them into a single t('4
It is also possible to move, move, and install the structure as it is. In this case, the waiting period is much shorter than C, and it is strong and safe.

The length of the backing is determined by the short length of the web of the H-shaped slab, and is 1.9771~1.5 yn~2. Oyno 1~2
．． 5m etc. and retaining wall Matabanyo Jl- (¥11 (4 beam stones,
It is extended to the end of the uragomi Kuriteki.

This framework is strongly connected, so it can be stacked in two or three layers.
Even if Kuriishi is introduced after it has been removed, this framework will not be disrupted.

In addition, especially since steel fiber reinforced concrete is used,
As mentioned above, even if chestnut stone is introduced from the top of the second or third stage, the component will not be damaged, and since the bending strength and paper properties are high, for example, even if the surface area is 1.5nf and the minor length is 1.5yyt. The weight is approximately 500kq, and despite being a large assistant, I
n? It is small at 333 kQ per hit. Steel fiber-reinforced concrete is used here as well, and the thickness of the material can be made smaller than that of reinforced concrete 1, as well as plain concrete 1, resulting in a thin, light, and strong block.

C. Earthquake-resistant structure In particular, earthquake-resistant structure means that the front and back parts form a unique ridge-shaped framework, and the conventional 11'4 framework is simply one large piece containing chestnut stone. In contrast to Ihuang, the framework of this invention has a structure that is fully integrated with the Kuriteki Group, which is subdivided into nests of peaks that penetrate deeply into the Kuriteki Group.
Furthermore, each joint has a hinge structure with a ``fit'' and a bold, which greatly helps in dispersing seismic force.

In addition, with the conventional framework, there is a high risk of damage to the front parts of the Yomitome.

2. The wall slope and the backing are long, so the depth of the framework is thick. The framework is filled with chestnut stone, and since the frame and the chestnut stone fit together and become one, it is possible to obtain the necessary and sufficient depth, so the wall slope of the retaining wall is almost vertical, about 4. 1% for up to 5 meters, and 2% to 3% for "-5 meters" and 2% to 3%.It is possible to make the walls steeper and make effective use of the land area for road housing lots, etc.

E, 1 no 1 Although the surface part has a closed structure, by guiding two I] shaped slabs arranged in a V shape in order to sink sufficient drainage holes, it is possible to extend the water out of the retaining wall. facilitate drainage;

Adjustment of the distance between the end top plates of the retainer The spacing between the flanges of the H-shaped slab of the retainer arranged in a V shape is 1.
- In order to make it easier to fit the left and right single units, the deformed steel bar for twisting can be removed, and the distance between the end top plates of the retainer can be slightly adjusted.

Explaining with the help of a diagram Figure 1 is a diagram showing the structure of a framework retaining wall block for one shell.

A is a front view, the mouth is a back view, C is a right side view, D is a top view, E is a bottom view, and H is a sketch. No. 1') is the drainage hole (Iro no. 1)
'), and the holding part is made up of H-shaped steel fiber reinforcing concrete 1 root slab (2) arranged in a ■ shape (2) as a holding part. This H-shaped slab is reinforced by reinforcing materials (3) extending from the back surface (1') of the front part to the end of the backing. Then, connect two H-shaped slabs to V
The four tops (mouth, ha,
2, to 4) and the bottom of the two places (a, mouth, ha, ho, to 5)
) are each expanded rectangular plates, with the top plate (
4) is provided with a concave and the bottom plate (5) is provided with a convex, -1
-Matches with that of the F stage.

For (6), a ``deformed steel rod for screw'' is used to prevent the end of the R1-shaped slab of the retainer from opening and to enable slight adjustment of the spacing.

(C, 2, P, 7) are the openings at the bottom of the web of the two T-shaped slabs, which are wide open and do not interfere with the filling of the chestnut stone.

FIG. 2 is a block diagram of a retaining wall or earth retaining structure using framed retaining wall blocks. A is a top view of the retaining wall, and the mouth is a configuration diagram of the retaining v1Y seen from the back. I will especially explain the mouth.

The figure is a structural diagram of a retaining wall in which six pieces of the framework retaining wall blocks explained in Fig. 1 are stacked, three in the lower tier, two in the middle, and one in the -1 tier, as seen from the back. The 31 pieces, made up of two H-shaped slabs for the front and backing, are combined with other single pieces to form a unique framework, reminiscent of a nest of peaks.

Next, to explain these frameworks using diagrams, the bottom row ■
On the top plate of 314 pieces, two after the +'tiI of the 2nd intermediate block, (+ of the 11i body block to) iJ of the 2nd stage LI
The right side of the two bottom plates (one after the other) and the left side of the two bottom plates marked ■ and then fit the two bottom plates marked 3 and 1'' into the top plates of ■ and ■. , combined in bold. This 1■
In this case, the first single flock of ■ is connected with all five other single blocks, and many stacked blocks are connected to each other.
It is closely connected to J and creates an integral set 1'+sr structure. The framework of such a retaining wall will be constructed.

[Brief explanation of drawings]

Figure 1 jlη construction diagram of a single frame retaining wall block, 1-i
Front view, rear view C, right side view 2, 2nd view E, bottom view, rear view Figure 2 Part of the retaining wall made up of stacked framed retaining wall blocks A,
iLE surface drawing opening, back sketch description 1, front side facing, 1 front side back 1 drainage hole 2, backing section H-shaped steel fiber reinforced concrete slab 3, backing section 1-reinforcement material for I-shaped slab 4 , the top plate 5, the bottom plate 6, the steel rod 7 for adjusting the spacing of the top plate at the end of the backing, and the opening at the bottom of the web of the backing T-shaped slab (Fig. 1).

Claims (1)

[Claims] The structure is such that it can be combined with the single block on the right to form a strong framework, with two H-shaped steel fiber-reinforced concrete slabs arranged in a V-shape at right angles to the back of the front part as a backing. There is. and,
The four tops and two bottoms created by arranging the two 11-shaped slabs in a V shape are each horizontally expanded rectangular plates, with a total of two -L stages and two lower stages. The four single blocks are fitted with similar rectangular plates that are in contact with each other, and are tightly connected with bold, and the two adjacent single blocks on the left and right are connected in the same way as in +iiJ - with the double block as a medium. will be closely connected. This shows that a large number of single blocks can be interconnected to form an integrated aggregate structure. The back of this collective structure is tied in a beehive shape to construct a strong retaining wall or earth retaining framework. Then, every time two or three layers are stacked, dogomi kuriteishi is thrown in. In this way, a single block is a combination of plate-like members made of steel fiber reinforced concrete 1, and a large number of necessary single blocks are firmly connected to create an integrated aggregate structure, and that aggregate structure is a retaining wall. Alternatively, it forms a strong framework for retaining earth, and resists external forces by working together with Kuriishi. Such a retaining wall or earth retaining structure in which such a single frame retaining wall block and a collective structure thereof constitute a honeycomb-like framework.