JPH07197448A - Structural sheet pile - Google Patents

Abstract

PURPOSE:To correctly drive a sheet pile straight without play, when adjacently driving a sheet pile to the earier one. CONSTITUTION:A sheet pile (A) composed of metallic plates formed with corrugated shape having a certain pitch, in the lateral section, the protruded wave parts (1), (2) of both right and left ends of the sheet pile (A) have mutually oppposite shapes. The top (1a), (2a) of both protruded ends (1), (2) are made lower as much as the thickness of the plate than the top of protrusions (3) of other intermediate parts. The slanting free ends (1b), (2b) of the protruded parts of both right and left ends are made shorter than the depth of the recessed parts (3a)... of other intermediate parts. Moreover, the groove width of the recesses (1c), (2c) at both right and left ends is made narrow in such an extent that a sliding clearance is left between the slanting free ends (1b) or (2b) of one sheet pile and the recesses (1c) or (2c) of the other adjacent sheet pile when these sheet piles are fitted to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet pile used for protecting a vertical soil wall surface in sewage works, various pipe burying works, earth digging works, protective wall construction works and the like.

[0002]

2. Description of the Related Art Generally, a sheet pile of this type is formed by a continuous corrugated corrugation. For example, as shown in FIG. 5 as an example of use of the present invention, the vertical soil wall surface (B) of a dug trench is collapsed. In order to prevent the above, it is assembled by being driven from above between the support pipe (raised) (C) which is temporarily installed in the lateral direction and the earth wall surface (B).

At this time, in the conventional sheet pile, as shown in FIG. 7D, all the concavities and convexities are formed at a constant pitch, and the slanted edges (4) and (5) at both ends thereof face in opposite directions. It's over.
When the sheet piles (D) are connected to each other, the slanted edge (5) of one sheet pile (D) is located at the side edge of the other sheet pile (D) adjacent to it (see FIG. 8). 6) Inset.

[0004]

However, in such a conventional means, since the groove width of the concave portion (6) is wide, the width (L) of the concave portion (6) is struck when the next sheet pile is driven into the sheet pile previously driven. ) Occurs as rattling between the sheet piles, and the sheet piles cannot be correctly and straightly driven. There was a problem that an unreasonable load was generated on the abdomen to support the sheet pile, causing the sheet pile to collapse.

Therefore, the present invention solves the above-mentioned conventional drawbacks, and when the next sheet pile is driven adjacent to the previously driven sheet pile, it can be smoothly and correctly driven straight without rattling. Its main purpose is to provide sheet piles.

[0006]

The structure of the present invention for achieving this object will be described with reference to the reference numerals corresponding to the embodiments. The present invention is formed with a corrugated waveform with a constant pitch in a cross-sectional shape. A sheet metal (A) made of metal sheet material, the corrugated convex portions (1), (2) at the left and right ends of the sheet pile (A) end in a contradictory form, and the convex portions at both ends ( Vertex of 1) and (2)
(1a) and (2a) are formed to be lower than the vertices of the protrusions (3) in the other middle portion by the thickness of the plate material, and the inclined free edges (1b) and (2b) of the protrusions at the left and right ends. Are formed to be shorter than the depth of the recesses (3a) in the other middle portion, and the groove widths of the recesses (1c) and (2c) at the left and right ends are the inclined free edges (1b) or (2b) of one of the sheet piles. The structure is so narrow that it is left in the recess (1c) or (2c) of the other adjacent sheet pile so as to leave a sliding clearance therebetween.

[0007]

[Operation] FIG. 5 shows the sheet pile (A) having such a structure.
In order to prevent the vertical soil wall surface (B) of the dug trench from collapsing, as shown in, between the laterally supported support pipe (raising) (C) and the soil wall surface (B). It is used by driving it from above. When the next sheet pile (A) is driven adjacent to the previously driven sheet pile (A), the inclined free edge (1b) or (2b) of one sheet pile is recessed (1c) or ( 2c) and slide it downward along the groove in the side edge recess of the sheet pile that was previously driven. In this case, the recess (1c) or (2
Since the width of the recesses (1c) and (2c) is narrow enough to leave sliding clearance between (c) and the slanted free edge (1b) or (2b), it is adjacent to the sheet pile that was driven in first. Then, the next sheet pile can be driven straight and smoothly without rattling.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below based on the embodiments shown in the drawings. 1 to 5, the reference numeral (A) indicates a sheet pile according to the present invention. The sheet pile (A) is formed of a metal plate material such as aluminum or a steel plate, and is formed in a continuous uneven waveform having a constant pitch in its cross-sectional shape. Also, the corrugated protrusions on the left and right edges of the sheet pile (A)
(1) and (2) end in a form in which they are oriented in mutually opposite directions in FIG. 2, and the ridges (1a) and (2
a) is formed lower than the apexes of the convex portions (3) ... of the other intermediate portion by the thickness dimension (t) of the plate material.

Further, the inclined free end edges (1b) of the convex portions at the left and right ends,
(2b) is formed shorter than the depth of the recesses (3a) ... in the other intermediate portion. In addition, the groove widths of the recesses (1c) and (2c) at the left and right ends are
As shown in FIG. 3, the inclined free end edge (1b) of one sheet pile or
When (2b) is fitted into the recess (1c) or (2c) of the other adjacent sheet pile, it is formed so narrow that rattling does not occur so much and a sliding clearance is retained.

In the sheet pile (A) constructed as described above, as shown in FIG. 5, a vertical earth wall surface of the dug trench
In order to prevent (B) from collapsing, it is used by driving it from above between the support pipe (raised) (C) temporarily installed in the lateral direction and the soil wall surface (B). When the next sheet pile (A) is driven adjacent to the previously driven sheet pile (A), the inclined free edge (1b) or (2b) of one sheet pile is recessed (1c) or ( 2c) and slide it downward along the groove in the side edge recess of the sheet pile that was previously driven. In this case the recess (1c)
Alternatively, the width of the recesses (1c) and (2c) is narrow enough to leave a sliding clearance between (2c) and the slanted free edge (1b) or (2b). It is possible to drive the next sheet pile adjacent to, straightly and smoothly without rattling.

Further, the apexes (1a) and (2a) of the convex portions (1) and (2) at both ends
Is the thickness of the plate from the apex of the convex part (3) of the other intermediate part
Since it is formed to be lower by (t), and the inclined free edges (1b) and (2b) of the convex portions on both the left and right ends are formed to be shorter than the depth of the concave portions (3a) ... As shown in the drawings, when the side edge projections of one sheet pile (1a), (2a) are connected by fitting them into the intermediate projections (3) near the side edges of the adjacent sheet piles, the left and right sheet piles (A),
(A) can be connected on the same plane, so that while the sheet piles maintain a flat posture without unevenness, the next sheet pile can be moved one by one with respect to the previously driven sheet pile.
Can be connected as short as the pitch and can easily perform assembly work at the site. By doing this, the next sheet pile can be connected as short as one pitch to the sheet pile that was previously driven, and the assembly can be done at the site. It will be easier to assemble.

Various dimensions and metal materials of the sheet pile in the present invention are not specified. For example, in the embodiment shown in FIGS. 1 to 4, an aluminum plate material having a thickness of 5 mm is used, and an effective width of left and right is 250 mm, The pitch of the intermediate convex portions (3) ... Is 52 mm, and the height of the intermediate convex portions (3) is 35 mm. Incidentally, FIG. 6 shows an embodiment in which the height of the peaks of the corrugated corrugations is slightly increased. In this embodiment, the effective width on the left and right is 250 mm, and the intermediate convex portion is
The pitch of (3) ... Is 47 mm, and the height of the intermediate convex portion (3) is 52 mm.

Although the embodiments considered to be typical of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments, and has the constitutional requirements referred to in the present invention and the present invention. The above-mentioned objects can be achieved and appropriately modified within the scope of the following effects.

[0014]

As is apparent from the above description, the present invention, when the next sheet pile is driven next to the previously driven sheet pile, the width of the side end recessed portion is the width of the inclined sheet of one sheet pile. Since it is formed so narrow as to leave a sliding clearance between the edge and the side end side recess of the other sheet pile, the next sheet pile is driven straight and smoothly without rattling adjacent to the previously driven sheet pile. Therefore, it is possible to prevent the generation of an unreasonable load at the time of driving, and to prevent the sheet pile from collapsing. In addition, in the present invention, the vertices of the protrusions at both ends are formed to be lower than the apex of the protrusions in the other intermediate portion by the thickness dimension (t) of the plate material, and the inclined free edges of the protrusions at the left and right ends are different from each other. Since it is formed to be shorter than the depth of the recess in the middle part of, the left and right sheet piles are flush with each other when they are connected by fitting the protrusions at the side edges of one sheet pile to the intermediate protrusions near the side edges of the adjacent sheet piles. It is possible to connect above, so that the next sheet pile is shortly connected by one pitch to the previously driven sheet pile while maintaining a flat posture without any unevenness between sheet piles. It has an excellent effect that it can be easily assembled on site.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an embodiment of a sheet pile according to the present invention.

FIG. 2 is a front view of the sheet pile.

FIG. 3 is a front view showing a connected state of the sheet piles.

FIG. 4 is a front view showing another example of a connected state of the sheet piles.

FIG. 5 is a perspective view showing a usage example of the sheet pile.

FIG. 6 is a sectional view showing another embodiment of the sheet pile according to the present invention.

FIG. 7 is a front view showing a conventional sheet pile.

FIG. 8 is a front view showing a connected state of a conventional sheet pile.

[Explanation of symbols]

 (1), (2) Convex parts (1a) on both left and right ends, (2a) Top part (1b), (2b) Inclined free edge (1c), (2c) Side end concave part (3) Intermediate convex part (3a ) Middle recess (A) Sheet pile

Claims (1)

[Claims] 1. A sheet pile (A) made of a metal plate material having a corrugated waveform with a constant pitch in a cross-sectional shape,
The corrugated convex portions (1) at both left and right ends of the sheet pile (A) end in a contradictory form, and the convex portions (1) at both ends, the apexes (1a) of (2),
(2a) is formed to be lower than the apex of the protrusions (3) in the other middle portion by the thickness of the plate material, and the inclined free edges (1b) and (2b) of the protrusions at the left and right ends are the other middle portions. It is formed to be shorter than the depth of the concave portions (3a) ... of the part, and the groove widths of the concave portions (1c) and (2c) at both left and right ends
It is narrow enough to leave sliding clearance between each other when the inclined free edge (1b) or (2b) of one sheet pile is fitted into the recess (1c) or (2c) of the adjacent sheet pile. Construction sheet pile.