JPH0419075Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to steel sheet piles that are driven into the ground along the side walls of excavated areas and embankments to prevent the collapse of these side walls. It is something.

(Prior art) U-shaped steel sheet piles, which have been commonly used as quay walls on the sea, rivers, etc. or side walls on the ground, are made up of a long steel sheet pile body and claws at both ends. For example, as disclosed in Japanese Utility Model Publication No. 57-61165, the next steel sheet pile whose direction has been changed by 180 degrees is driven into the previously driven steel sheet pile while engaging the claws of each other, and one after another, A steel sheet pile wall is formed by pouring in the same manner.

(Problem to be solved by the invention) When forming a box-shaped side wall as shown in Fig. 8 using a plurality of such steel sheet piles, first
Drive the second U-shaped steel sheet pile 1A vertically into the ground,
Next, the direction of the second U-shaped steel sheet pile 1B is changed by 180 degrees from that of the first steel sheet pile 1A, and the two U-shaped steel sheet piles 1B are driven vertically into the ground so that their claws 2 fit together. Then, the T-type steel sheet pile 3A used for corners is driven in, and the traveling direction of the steel sheet pile is changed by 90 degrees. moreover,
Five U-shaped steel sheet piles 1C, 1D, 1E on one side in order,
1F, 1G, and T-shaped steel sheet piles 3B, etc. are driven in sequence, and finally, to close it off, drive in U-shaped steel sheet piles 1T. However, each steel sheet pile 1A, 1B..., 3
A, 3B... are each driven perpendicularly into the ground, but due to the different hardness of the ground, such as faults or stones, it is impossible to drive them accurately and without any deviation. As the driving direction is slightly different and as you drive multiple sheets, the gap between the upper and lower parts gradually becomes misaligned, and the final 1T steel sheet pile.
It often happens that there is a gap that prevents the two from fitting properly. For this reason, the final closing work is extremely difficult, as the steel sheet piles that have been driven must be pulled out and re-driven while correcting the misalignment little by little, or the last steel sheet pile must be forcefully driven in while applying pressure. There was a problem. In addition, since the U-shaped steel sheet piles 1A, 1B... are assembled with their orientations changed by 180 degrees, and the direction of the claws at the ends is alternately reversed, if specific corner steel sheet piles are placed on both sides of the side wall, However, the number of steel sheet piles driven into the wall is limited to an even or odd number, making it impossible to form a steel sheet pile wall with a desired length.

The present invention has been made based on the above-mentioned problems, and aims to provide a steel sheet pile that can easily correct the misalignment of the gap and also allows the direction of the claw portion to be changed at will. .

[Structure of the invention] (Means for solving the problem) The present invention provides a pair of left and right steel sheet pile bodies each having an approximately L-shaped cross section, and extends the bottom plate end of at least one of these steel sheet pile bodies along the longitudinal direction. Both steel sheet pile bodies are connected by a fitting connecting portion.

(Function) By inserting and fitting the bottom plate end of the other steel sheet pile main body into the connection part of one steel sheet pile main body, and changing the insertion length, the width of the steel sheet pile can be adjusted arbitrarily, and the The direction of the part can be changed freely.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. 4 is a first steel sheet pile body having a substantially L-shaped cross section, having a claw portion 5 at one end and a bottom plate portion 6 at the other end;
Two guide plates 7 are welded to the other end along the longitudinal direction to provide a connecting portion 8 having a gap equal to the thickness of the steel sheet pile body 4. Although projections 7A are provided at both ends of this guide plate 7, a normal flat plate may be used. 9 is a second steel sheet pile main body having a substantially L-shaped cross section, which has a claw portion 5 at one end and a bottom plate portion 6 at the other end;
An end portion of the bottom plate portion 6 is inserted into and fitted into the connecting portion 8. Then, insert this second steel sheet pile main body 9 into the connecting part 8 and both steel sheet pile main bodies 4,9
A normal U-shaped steel sheet pile 10 is constructed by butting the bottom plate parts 6 of
It can be adjusted by sliding it along the connecting part 8 and changing the insertion length. The first steel sheet pile main body 4 and the second steel sheet pile main body 9 can be formed by vertically dividing a normal U-shaped steel sheet pile 10, or each can be formed as a single member.

The steel sheet pile of the present invention constructed as described above is the first
Since the steel sheet pile main body 4 and the second steel sheet pile main body 9 can be separated, and both the steel sheet pile main bodies 4 and 9 can be combined to form one steel sheet pile 10, the width W of the steel sheet pile 10 is
or change the direction of the claws 5 to each other.
Can be changed 180°. In other words, when a box-shaped side wall is constructed of a large number of steel sheet piles 1 and 3 as shown in Fig. 8, the steel sheet piles 1 and 3 are driven into the ground one by one, but the steel sheet piles driven first When an error occurs in the interval between the steel sheet pile 1A and the steel sheet pile 1S one before the last, and the last steel sheet pile 1T for closing does not fit well, the steel sheet pile 10 of the present invention is used as the steel sheet pile for closing. Ru. In the steel sheet pile 10, the second steel sheet pile main body 9 is slidable with respect to the first steel sheet pile main body 4, and the width W thereof is variable,
Even if the spacing is out of order, the width W changes according to the spacing, making closing work very easy. Further, since the end portion of the bottom plate portion 6 of the second steel sheet pile main body 9 is fitted into the guide plate 7 of the connecting portion 8, there is no problem in terms of strength. Furthermore, as shown in FIG. 3, the width W of the steel sheet pile 10 can be changed between the upper and lower parts, which also works as a drumstick sheet pile, making it very convenient.
Moreover, as shown by the dotted line in FIG. Alternatively, it is possible to adjust an odd number of sheets.

FIG. 4 shows a second embodiment of the present invention, in which U
There are usually two types of shapes of the claw portions 5 in shaped steel sheet piles, and the present invention can also be applied to a steel sheet pile 10' having a claw portion 5' of a shape different from that of the first embodiment shown in FIG. Further, a connecting portion 8' having a square cross-sectional shape may be welded to the end of the first steel sheet pile body 4' so that the second steel sheet pile body 9' can be inserted freely. If the second steel sheet pile bodies 9, 9' are exchanged with each other by having steel sheet piles 10, 10' with different shapes of the claw portions 5, 5', one sheet of steel sheet piles can be obtained as shown in FIG. The shapes of the claw portions 5, 5' of the sheet pile 10 can also be made different.

FIG. 6 shows a third embodiment of the present invention, in which the connecting portion 8A does not need to be welded to the first steel sheet pile body 4. That is, the connecting portion 8A may be formed to have an H-shaped cross section so that both the first steel sheet pile body 4 and the second steel sheet pile body 9 can be inserted.

FIG. 7 shows a fourth embodiment of the present invention, in which U
In addition to shaped steel sheet piles, it can also be applied to Z-shaped steel sheet piles, etc.

Although various embodiments of the present invention have been described in detail above, various modifications can be made within the scope of the gist of the present invention. For example, the connecting portion 8 may be screwed onto the first steel sheet pile body 4 or may be formed integrally with the first steel sheet pile body 4.

[Effects of the invention] As described in detail above, according to the invention, the first steel sheet pile body has a substantially L-shaped cross section, the second steel sheet pile body has a substantially L-shaped cross section, and the first and second steel sheet piles. A steel sheet pile that is provided with a connecting portion that fits at least one bottom plate end of a sheet pile main body along the longitudinal direction, so that misalignment of the gap can be easily corrected and the direction of the claw portion can be arbitrarily changed. can be provided.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the first embodiment of the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is a front view showing the state of use, and Fig. 4 is a sectional view showing the second embodiment. 5
6 is a sectional view showing the third embodiment, FIG. 7 is a sectional view showing the fourth embodiment, and FIG. 8 is a plan view showing the driving state. 4... First steel sheet pile body, 5... Claw portion, 6...
Bottom plate part, 8... Connection part, 9... Second steel sheet pile body, 10... Steel sheet pile.

Claims (1)

[Scope of utility model registration request] A first steel sheet pile main body having a substantially L-shaped cross section, a second steel sheet pile main body having a substantially L-shaped cross section, and an end portion of the bottom plate of at least one of the first and second steel sheet pile main bodies along the longitudinal direction. A steel sheet pile characterized by comprising a connecting portion that fits together.