JPS60192030A - Terraced block for reinforced concrete retaining wall - Google Patents

Abstract

PURPOSE:To enables a retaining wall to be durable to an earth pressure and to improve safety, by a method wherein counterforts are symmetrically protruded from the rear side of a front wall, and overhanging walls are protruded from the forward end of the counterfort, and one - plural reinforcing rod inserting holes are bored therein. CONSTITUTION:Counterforts 2 are symmetrically protruded from the rear side of a front wall 1, front wall reinforcing rod inserting holes 3 are vertically bored in the front wall 1 positioned facing the each counterfort 2, and counterfort reinforcing rod inserting holes 4 and 5 are also bored in the central part and the forward end of the counterfort 2. Overhanging walls 6 are protruded from the forward end of the counterfort 2, and reinforcing rod inserting holes 7 are provided in each overhanging wall 6. Lateral reinforcing rods 11-15 are arranged in the walls 1, 2 and 6 and vertical reinforcing rods, not shown, are arranged in the reinforcing rod inserting holes 2-5 and 7. This enables easy and inexpensive building of a retaining wall, and permits improvement of stability and safety.

Description

[Detailed description of the invention]

(b) Industrial application field of the present invention 111.1 Reinforced concrete used for building walls
This relates to stacking bags made from 1 to 1. <Explanation> Conventional technology and its problems Concrete one-block retaining walls, which have been used in various types of construction, generally have 8 to 10 blocks per unit. In many cases, it is necessary to use concrete and backing stone, and it is often necessary to use one person and one person (
It requires about 10 people per group, but it is extremely inefficient as it requires about 35...2 culms per day. Also, although it is a gravity-type retaining wall for engineers, the bending of h ¥ is thin.

[Because it is made of wood, it has a small resistance to forces such as earth pressure, and has drawbacks such as being susceptible to cracking due to impact and vibrations during farming. Therefore, a structure was devised in which a retaining wall protruded from the rear side of the front wall to form a T-shaped 7' lock, but there were restrictions on the rear side of the retaining wall, and external forces such as earth pressure were large. Nevertheless, in places where buttresses of the required length cannot be used, retaining walls constructed using the T-shaped stacking blocks described above have the problem of not fulfilling their function at all. (C) Means for Solving the Problems In the present invention, buttresses are protruded from the rear side of the front wall at symmetrical positions, and vertical front wall reinforcing holes are inserted into the front wall near the base of the buttress. At the same time, a vertical buttress reinforcement insertion hole was also drilled in the middle of the buttress, and an overhanging wall was installed on the left and right at the tip of the buttress. It is an object of the present invention to provide a reinforced concrete retaining wall stacking block which can completely solve the problem mentioned above by constructing a stacking block by arranging vertical and horizontal reinforcing bars in walls and overhanging walls. (d) - Function When constructing a retaining wall, make sure that the anchor and car reinforcing bars of the foundation block are inserted into the reinforcing bar insertion holes of the retaining wall stacking blocks, and then stack the same blocks on top of the foundation block in order. 2nd to 3rd stage (4 in special cases)
In stages 5 to 5), mortar or concrete can be appropriately filled into the reinforcing bar insertion holes, and the specified post reinforcing bars can be immediately inserted into each reinforcing bar insertion hole and spliced. After that, if a back embankment is placed behind the front wall, the buttresses will be buried deep in the back embankment, and the overhanging walls projecting to the left and right of the ends of the buttresses will be placed between each buttress. By gripping the central embankment, the stability of the retaining wall is improved, and since each block itself is a double-reinforced concrete T-beam, the front wall is able to handle positive and negative waves that occur toward the front and rear sides. It exhibits a large resistance force against bending moments, and furthermore, the earth pressure exerted on the rear surface of the front wall is transmitted to the buttress by the reinforcing bars arranged from the buttress to the front wall. Since the blocks are supported in a dispersed state, even if the cross-sectional area of each stacked block is reduced, it can withstand large pressures, etc., and safety is improved. (e) Effects According to the present invention, each stacked block is made small and
Because it can be constructed lightweight, retaining wall construction work can be carried out quickly and reliably by a small number of people.Moreover, compared to conventional machi block retaining walls, each block is made of double reinforced concrete T-shape. In addition to being a beam, it has left and right overhanging walls protruding from the tips of the buttresses, so it is highly stable, and it can also be mass-produced in factories as a ready-made product, so it is possible to manufacture high-quality products. Furthermore, since the wall body can have an economical cross-section, the construction cost can be reduced. Shika-51 This stacking block is used for earth retaining work for general roads, farm roads, forest roads, and residential land development work, but it can also be used for bank protection work, mountainside work, etc.
have fruit. (F) Embodiment The embodiment of the present invention will be explained in detail based on the drawings. (A) shows a stack of blocks for a retaining wall made of reinforced concrete, and the block (A>) is a front wall of a vertical block ( 1
) are provided with buttresses (2), (2) protruding rearward at right angles at symmetrical positions on the rear side of the buttresses (2), (2), and in the front wall <1) corresponding to the base of the buttresses (2), (2>). In addition to drilling front wall reinforcing holes (3), (3) that penetrate vertically up and down, each buttress wall (
2), buttress reinforcement insertion holes (4), (5) that vertically pass through the center and tip of (2) are also drilled, and each buttress (2), <2 At the tip of
6), (6) has an overhang wall reinforcing bar insertion hole (7) that penetrates vertically from top to bottom. (7), so that the front wall reinforcing bar insertion hole (3) and the buttress wall reinforcing bar insertion holes (4) and (5) are located opposite each other on the same straight line in the front and rear longitudinal direction. Reserve V! Rebar insertion hole (
5) and the overhanging wall reinforcing bar insertion hole <7), <7) are arranged to face each other on the same straight line in the left and right directions, and,
Near the center of the front wall (1), a drainage hole (8) is drilled through the front and rear surfaces, and is slanted so that the front is low and the rear is high.Furthermore, a four-slot joint (4 grooves) is installed in the longitudinal direction on the upper surface. 9), and
A protruding joint (10) with a protruding strip is provided on the lower surface in the longitudinal direction so that when the customer stacking blocks (A>) are stacked, each joint <9>
, ('10) are fitted to prevent layer movement of each upper and lower block 1
It is Shino who is in No. -1 - Filling blocks (A> are formed as - blocks by filling and covering one formwork with concrete. 1) Inside, there are vertically rectangular reinforcing bars (
11) are arranged at constant intervals. ')1
The reinforcing bars (12) are arranged across the front and rear surfaces of the *fI'T box (1), and each reinforcing bar (11) and (12)
) There is a lattice-like reinforcement arrangement in the wall (1). 1: From the front wall (1) to the middle of the buttress (2)
", approximately (J-shaped (13) is horizontally arranged in several stages, and approximately U-shaped reinforcement (14) of b1 buttress (2)
) are crossed and welded. In the 2U and left and right protruding ends of the buttresses (2) and the LC tension 11 walls 6) and (6), there are reinforcing bars (15), buttress reinforcing bars insertion holes (5), and Overhang a m insertion hole (7
), (7> It is formed into a substantially horizontally long rectangular shape with a fourth grade outside, and is welded horizontally across several steps to the tip of the reinforcing bar (13). Fig. 3 tJ1, Retaining The wall is being constructed by stacking foundation blocks (B) - each block [cock (A>)], but the wall is being built by stacking blocks (A) near the foundation block (B). For the construction, blocks larger than normal stacked blocks (4<l f row J) are used in some parts to create a staircase shape.In other words, the large + noise stacked blocks are Depending on the magnitude of the external force, the buttress wall is extended backwards from the normal one to increase the cross-sectional dimension, and the buttress wall reinforcement (inside holes and reinforcing bars are added separately). , the effective cross-section is large and the resistance couple is excellent in strength. By making the east wall (step-shaped using a cock), it can be fixed to the foundation block 14 and the retaining wall and foundation block can be integrated and made solid.3゜Furthermore. , to explain the construction of the retaining wall in detail, the foundation block (+3
) Insert the protruding anchor reinforcing bar, 1-half part, into each reinforcing bar insertion hole (3), <4), (5), (7), and Groove joint (16)'
＼Block￥Fit the raised joint (10), and place the customer stacking blocks (Δ) on top of the ul- lining in sequence by combining the groove joint (9) and the protrusion joint (10〉 with 11χ) 9 (Yuki). , Meanwhile, each reinforcing bar insertion hole (3), <4). (5), (7))! 11 Reinforcement bars (17) are used as matchmakers,
After overlapping the l111 reinforcing bar (17) and the anchor reinforcing bar, make sure to put a hook knock on the ends of both sides.
Fill each reinforcing bar insertion hole with mortar or concrete. Connecting reinforcing bars (17) are straight chain)) η, and insert them into each reinforcing bar insertion hole (3), (/I), (5), <7> by a matchmaker (
, L, 1 part or 1 ~ Dingi 艮zata [-1-J of Tsu block, so that it sticks out Jq! This is how the reinforcing bars are inserted into the reinforcing holes of the stacked blocks.
The m part goes in. J: Let it go. This block IJI is constructed as described above.
The water collection mouth of the water hole (8) should be covered with a small amount of gravel or chestnut stone.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a retaining wall block according to the present invention. FIG. 2 is a side view of the retaining wall block according to the present invention. FIG. 3 is a diagram of the construction state. (1): Front wall (2): Buttress <3)': rlr + wall reinforcing bar insertion hole (-7I), (5): wall reinforcing bar insertion hole (6): overhang: V

Claims (1)

[Claims] 1〉 is l wall (on the rear side of 1〉), and a buttress〈2) is protruding from the right symmetrical position, and the front wall in the vertical direction is installed in the front wall (1) near the buttress (2) at 31 @if. When the wall reinforcing bar insertion holes (3) are drilled, longitudinal buttress reinforcing bar insertion holes (/l) and (5) are also drilled in the middle of the buttress wall (2) at Jt, and Wall
2) At the tip, there are overhangs on the left and right! (6),
(6') protrudes, and vertical and horizontal reinforcing bars are arranged on the front wall (1), the buttress t'<2), the tension S1 wall (-6), and (6), respectively. 1-1 Stacking blocks for the wall.