JPH0449607B2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a wall structure of an earth retaining structure, and more particularly, to a wall structure of an earth retaining structure that can adapt to uneven settlement without destruction even when constructed on a soft foundation ground. A wall surface of an earth retaining structure that maintains sufficient stability against relative displacement even when a soft backing material with high compressibility is used as embankment, and the shaped steel portion is covered and protected by the end face of the panel member. Regarding structure.

[Known technology and its problems]

For structures such as earth retaining structures that are subject to vibrations and shocks from traffic, deterioration due to ultraviolet rays, and erosion from rainwater, materials such as concrete, reinforced concrete, and PS concrete that are resistant to deterioration and have high mechanical strength are used. It is desirable to use large rigid materials. From this perspective,
First, multiple metal steel shapes are installed at intervals on the ground, then concrete panels are fitted between adjacent steel shapes to form a wall surface, and reinforcing materials are connected to the back of the walls while embanking. A reinforced earth construction method has been developed that involves laying and compacting.

However, in this construction method, the reinforcing material is fixed and connected to the back of the panel, so the connecting part is easily destroyed due to uneven ground settlement. These materials tend to cause relative displacement, and at this time, since the reinforcing material is fixedly connected as described above, the joints are easily destroyed by this relative displacement, and furthermore, Since the molded steel is metallic, it is easily corroded, and rust on the front part in particular is visible to the public and is not aesthetically pleasing.

[Purpose of the invention]

The purpose of the present invention is to be able to adapt to uneven ground subsidence without destruction, maintain sufficient stability against relative displacement even when a soft and highly compressible backing member is used as embankment, and It is an object of the present invention to provide a wall structure of an earth retaining structure, which improves the drawbacks of the above-mentioned known techniques, in which the shaped steel portion is covered and protected by the end face of the panel member.

[Key points of the invention]

In order to achieve the aforementioned object, according to the present invention:
A plurality of shaped steels each having an engaging piece protruding from its side surface, a panel member having engagement grooves at both ends that can be engaged with the engaging pieces, and a back surface of the shaped steel or panel member that can be slid up and down. The plurality of shaped steels are installed upright on the ground at intervals, and a panel member is fitted between adjacent shaped steels, and this panel member is a reinforcing member attached to the shaped steel. It is characterized in that the engaging pieces are inserted into engaging grooves at both ends of the panel member, and are fitted so that the front surface of the shaped steel is covered by the end face of the panel member.

[Embodiments of the invention]

The wall structure of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a plan view of a wall structure according to the present invention, in which 1 is a shaped steel, and an engaging piece 2 is protruded from the side surface of this steel. Such a shaped steel 1 may be an H-shaped steel as shown in the first figure, or may be a T-shaped steel (not shown). In the present invention, a plurality of such shaped steels 1 are installed on the ground at intervals Open it and install it upright.

Reference numeral 3 denotes a panel member, and engagement grooves 4, 4 that can be engaged with the engagement piece 2 are provided at both ends of the panel member.
It is fitted between the mutually adjacent shaped steels 1,1. This fitting is carried out by inserting the engaging pieces 2 of the shaped steel 1 into the engaging grooves 4 at both ends of the panel member 3, so that the front surface 1a of the shaped steel 1 is covered by the end surface 3a of the panel member 3, and the third As is clear from the front view of the figure, the shaped steel 1 does not appear on the surface of the wall structure A at all.

Reference numeral 5 denotes a reinforcing material, which is attached to the back surface 1b of the shaped steel 1 or the back surface 3b of the panel member 3, for example, by being connected to a connecting member 6 as shown in the second figure, so as to be slidable up and down. In FIG. 2, a connecting member 6 connects a pair of fixing fittings 7 and 8 to a mold steel 1, respectively.
The connecting rod 9 is fixed between the upper and lower fixing fittings 7 and 8. In this case, the reinforcing material 5 is connected to the connecting member 6 by drilling a hole at one end of the reinforcing material 5 and inserting the connecting rod 9 into the hole, so that the reinforcing material 5 is connected to the connecting member 6 along the connecting rod 9. It becomes possible to freely slide vertically between the metal fittings 7 and 8. Nuts 10 and 10' are used to fix the connecting rod 9 between the fixtures 7 and 8.

Furthermore, as shown in FIG. 5, the connecting member 6 is constructed by drilling a vertically elongated hole 11 at an arbitrary location on the steel section 1, for example, on the section 2a of the H section steel 1 facing the engaging section 2. In this case, the reinforcing material 5 is connected to the hole 1.
The tip of the reinforcing material 5 (anchor bar) is passed through 1, and a nut (not shown) is fitted to connect it to the connecting member 6, whereby the reinforcing material 5 can freely slide up and down along the hole 11. .

Furthermore, as shown in FIG. 4, the connecting member 6 has a connecting rod 12 in a space 2b formed by the engaging piece 2 and the opposing piece 2a of the mutually adjacent steel molds 1, 1.
In this case, the reinforcing material 5 is connected by using a net-like sheet and wrapping it around the connecting rod 12, so that the reinforcing material 5 can move freely up and down along the space 2b. It becomes possible to slide.

The wall structure A according to the present invention constructed in this way is used for constructing the earth retaining structure B. During construction, first, the reinforcing material 5 is connected to the connecting member 6 from below, and embankment is sprinkled on top of this. By repeating such operations, the reinforcing material 5 is connected to the upper part, and the embankment is rolled to the upper part.As a result, the back surfaces 1b and 3b of the shaped steel 1 and the panel member 3 are Embankment compaction layer 1
3 is formed to constitute the earth retaining structure B.

〔Effect of the invention〕

As described below, in the wall structure A according to the present invention, the reinforcing material 5 is connected to the connecting member 6 so as to be able to slide up and down, so that stress concentration does not act on the connecting part in response to the compression of the embankment. Therefore, it can adapt to the uneven settlement of the ground without breaking, and even if a soft and highly compressible backing material is used as embankment, it maintains sufficient stability against relative displacement. The front side 1a of is the panel member 3
The front face 1a is covered and protected by the end face 3a of
Not only is it useful for rust prevention, but mold steel 1 is also useful for wall structure A.
It is also aesthetically pleasing because it does not appear on the surface.

[Brief explanation of the drawing]

FIG. 1 shows a plan view of a specific example of a wall structure according to the present invention, FIG. 2 shows a specific example of a reinforcing material connection mechanism, and FIG. 3 shows a front view of a wall structure according to the present invention. FIG. 4 shows a plan view of another specific example of the wall structure according to the present invention, and FIG. 5 shows another specific example of the reinforcing member connection mechanism. 1...Shape steel, 1a...Front, 1b...Back, 2
...Engagement piece, 3...Panel member, 3a...End face,
3b...Back surface, 4...Engagement groove, 5...Reinforcement material, 6
... Connecting member, A... Wall structure, B... Earth retaining structure.

Claims (1)

[Claims] 1. A plurality of steel shapes with engaging pieces protruding from the sides,
A panel member provided with engagement grooves at both ends capable of engaging with the engagement pieces, and a reinforcing member attached to the back surface of the steel mold or the panel member so as to be slidable up and down, the plurality of steel molds comprising: A panel member is installed upright on the ground at intervals and is fitted between adjacent molded steels, and this panel member is constructed by inserting the engaging pieces of the molded steel into the engaging grooves at both ends of the panel member. , a wall structure of an earth retaining structure in which the front surface of the shaped steel is fitted so as to be covered by the end surface of the panel member.