JPS595073Y2 - Corner steel sheet pile - Google Patents

Description

[Detailed description of the invention] The present invention relates to steel sheet piles for corners, and involves cutting a part of one locking edge of a Larsen type steel sheet pile, which is one of the U-shaped steel sheet piles, in the longitudinal direction to cut out a cut member. Fill the recess by fitting and welding the cut member or other member into the recess formed between the remaining portion of the locking edge and the bent edge, or by overlaying the recess into the recess. The corner-side locking edge is formed so that the cut surface of the remaining portion of the locking edge and the open side surface of the embedded portion are substantially flat or slightly chevron-shaped.

Conventional corner steel sheet piles that are driven into corners for connection in corner retaining work include T-shaped corner steel sheet piles 1 shown in Fig. 1 or W-shaped corner steel sheet piles 2 shown in Fig. 3.
To manufacture the T-shaped corner steel sheet pile 1, cut the bottom center of the Larzen-type steel sheet pile 3 in the longitudinal direction, separate it into two pieces, and insert one piece into the center of the outer bottom of the Larzen-type steel sheet pile 3 in a T-shape. Two T-shaped corner steel sheet piles 1 are manufactured using three Larzen-type steel sheet piles 3, and an example of construction is shown in Fig. 2. Ralzen type steel sheet piles 3 are connected in a zigzag shape, and a T-shaped corner steel sheet pile 1 is further connected to the corner portion of the Ralzen type steel sheet piles 3 connected in a zigzag shape, and the Ralzen type steel sheet piles are connected to the connecting portion 1' in the bending direction. 3 are connected.

However, since the T-shaped corner steel sheet pile 1 has a connecting part 1' standing upright over the entire length of the outer bottom surface, the weight increases and the gripping length is too long to be gripped by the chuck of a commonly used vibro pile driver. The connecting portion 1' must be removed, and in the commonly used press-fitting method, the connecting portion 1' may become a hindrance and cannot be attached to a pile driver.

Also, even if you try to add T-shaped corner steel sheet piles 1 according to the required length, the connecting part 1' is formed, so it is difficult to add new T-shaped corner steel sheet piles 1 that have a considerable length. By manufacturing sheet piles, the amount held increases, and the connecting portion 1' becomes a hindrance during transportation and storage, resulting in increased bulk and the risk of yellowing.

However, in the case of the W-shaped corner steel sheet pile 2, it is necessary to weld the reinforcing material 2' in order to process the angular bent part at the center of the member at a right angle, which makes it difficult to process the angular bent part at right angles. As shown in Fig. 4, during construction, W-shaped corner steel sheet piles 2 are connected to the corner portions of the Larsen type steel sheet piles 3 connected in a zigzag shape, and other steel sheet piles are connected in the bending direction. Larsen type steel sheet pile 3... is to be connected.
Since the W-shaped corner steel sheet pile 2 opposes the tonosho over a fairly wide area, safety may not be completely guaranteed, and also because the W-shaped corner steel sheet pile 2 has a W-shaped cross section. There may be restrictions on commonly used driving methods, and even if you try to add W-shaped corner steel sheet piles 2 if necessary, the cross-sectional shape is undulating, resulting in misalignment at the joint surface, making it difficult to add. It is.

The present invention eliminates such drawbacks, and the embodiment thereof is as shown in FIGS.
The recessed part 9- formed between the remaining part 7 of the locking edge and the bent edge 8, the cut member 6 or another member is inserted and welded, or the recessed part 9 is overlaid by welding. The recessed part 9 is then filled in to form the embedded part 4, and the cut surface of the remaining part 7 of the locking edge and the open side surface 5 of the embedded part 4 are
The corner steel sheet pile 12 according to the present invention is made by arranging the corner side locking edge 10 opposite to the normal locking edge 11 formed on the other side of the Larsen-type steel sheet pile so that it is substantially flat or slightly chevron-shaped. The present invention can also be applied to Ratsukawaner type steel sheet piles, which are one type of U-shaped steel sheet piles.

Note that 13 in the figure is a groove formed on the joint end surface of the corner steel sheet pile 12.

Since the present invention is constructed in this way, as shown in FIG. 6, the corner side locking edge 10 of the corner steel sheet pile 12 is fitted into the locking edge 11 of the Larsen type steel sheet pile 3 at the corner portion connected in a zigzag shape. When connected together, the corner construction can be completed very firmly and easily.

Since the corner steel sheet pile 12 of the present invention has a cross-sectional shape that is only slightly different from the normal Larsen type steel sheet pile 3, it can be easily stacked as shown in FIG. It's safe because it doesn't.

In addition, as shown in Figure 9, if weld the grooves 13.13 provided on the joint end faces of the corner steel sheet piles 12 according to the required length, it will be extremely sturdy and easy to add to the joints. The amount may be small.

Also, compared to the conventional T-shaped corner steel sheet pile 1 and W-shaped corner steel sheet pile 2, it is easier to add parts, and it can be used with any type of pile driver, including the commonly used vibro pile driver. It can be constructed and used for general purposes without any restrictions on the driving method.

In this way, the present invention retains the original shape of the U-shaped steel sheet pile and modifies its locking edges, making it simple in structure and easy to manufacture, yet most effective for mountain retaining work with sufficient strength and durability. This is a useful idea with high practical value.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing a conventionally known T-shaped corner steel sheet pile, Fig. 2 is a partially cutaway track view showing the state of use of the T-shaped corner steel sheet pile, and Fig. 3 is another conventional one. A cross-sectional view showing a known W-shaped corner steel sheet pile, FIG. 4 is a partially cutaway track view showing the state of use of the W-shaped corner steel sheet pile, and FIG. 5 shows the corner steel sheet pile of the present invention. A sectional view, FIG. 6 is a partially cutaway overhead view showing the present invention in use, FIG. 7 is an enlarged plan view of section A in FIG. 6, and FIG. 8 is a side view showing the present invention in a stacked state. FIG. 9 is a perspective view showing an added state of the present invention. 3... Ralzen type steel sheet pile, 8... Bent edge, 10... Corner side locking edge, 11...
... Locking edge, 12 ... Steel sheet pile for corner.

Claims (1)

[Scope of utility model registration request] A space surrounded by an open side wall end formed in a Larzen type steel sheet pile, a bent edge that is bent outward from the side wall end, and a locking edge that is raised by tilting the bent edge toward the side wall end. A corner side locking edge having a cross-sectional shape that is approximately the same as that of the Larsen type steel sheet pile is formed by cutting out a part of one locking edge of the Larsen type steel sheet pile, and forming a recess between the corner side locking edge and the bent edge of the remaining portion of the locking edge. A steel sheet pile for corners, characterized in that it is formed by filling in the sections.