JPH035509A - Shade concrete block for steel sheet pile wall - Google Patents

Abstract

PURPOSE:To easily form a pile wall by extensively providing a side plate part that is provided along a pile wall, on one side of a roof part put on the upper part of a steel sheet pile wall, and by integrating the roof part and a side plate part together through a precast concrete block. CONSTITUTION:A steel sheet pile wall 13 is formed by continuously striking a steel sheet pile 11 so as to preliminarily make an upper part 14 and a water surface 15 almost of the same level. A shade concrete block 16 is preliminarily manufactured by precasting, and after it is hung down by a crane, etc., so as for a side plate part 18 to fit to the steel sheet pile wall 13, a roof part 17 is put on the upper part 14 of the steel sheet pile wall 13. By inserting a screw rod 21 into through holes 19, 20 with both ends screwed by a nut 22, the shade concrete block 16 is fastened to the steel sheet pile wall 13, and by inserting a bolt 25 into a mounting seat 24, the steel sheet pile wall 13 and the roof part 18 are adhered to one another. A term of works can be contracted and the cost can be reduced thereby.

Description

[Detailed description of the invention] [Industrial application fields] The present invention relates to a cap concrete block for steel sheet pile walls.

[Prior Art] Conventionally, steel sheet pile walls are generally used as quay walls of the sea, rivers, etc. or retaining walls on the ground, etc., in which steel sheet piles are continuously driven by engaging each other with their claws. The upper part of this steel sheet pile wall is covered with a cap concrete block l, as shown in Figure 6, in order to improve its appearance, and in the case of a quay wall, to provide a structure for attaching fenders, etc. This cap concrete block 1 is made by, for example, fixing vertical and horizontal reinforcing bars 3 to the top of a steel sheet pile wall 2 in a cage shape, setting a concrete formwork around its outer circumference, and then pouring concrete 4 into the concrete formwork. After curing, the formwork is removed to form a cap concrete block 1 as described above.

[Problems to be Solved by the Invention] In the conventional technology, materials are brought to a quay where steel sheet piles 2 are installed and reinforcement placement, concrete placement, etc. are carried out. It takes a long time to prepare, and the poured concrete requires curing time. Furthermore, in order to cast concrete on-site, it is necessary to position the cap concrete block above the water surface, and there is also the problem that the above-mentioned reinforcement work and the installation and removal of complex-shaped concrete block forms are time-consuming. there were.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide a concrete block for a steel sheet pile wall that can be easily installed on a steel sheet pile wall in a short period of time.

[Means for Solving the Problems] The present invention relates to a cap concrete block that is placed on the top of a steel sheet pile wall in which steel sheet piles are continuously cast by engaging claws. A side plate part is provided along the steel sheet pile wall on one side of the top plate part, and the top plate part and the side plate part are integrally formed from a precast concrete block.

[Function] After placing the top plate integrally formed with a precast concrete block on the top of the steel sheet pile wall and setting the side plate part along the steel sheet pile wall, the cap concrete block is placed on the steel sheet pile wall. It is fixed.

[Example] Next, one embodiment of the present invention will be described with reference to the accompanying drawings.

Reference numeral 11 denotes a steel sheet pile, and the steel sheet pile wall 13 is formed by continuously driving the steel sheet piles by engaging each other's claw portions 12. Incidentally, the upper part 14 of this steel sheet pile wall 13 is set at approximately the same height as the water surface 15.

Reference numeral 16 indicates a cap concrete block, and this cap concrete block 16 has a top plate portion 17 that is placed on the upper part 14 of the steel sheet pile wall 13, and the steel sheet pile wall 13 is disposed below on the front side of the top plate portion 17. A side plate portion 18 is provided vertically along the side. The cap concrete block 16 in which the top plate part 17 and the side plate part 18 are integrally formed is manufactured in advance at a factory by precasting. The side plate portion 18 of this shade concrete block 13 has a through hole 19 for fixing.
is formed, a screw thread 21 is inserted into the through hole 19 and a through hole 20 formed in the steel sheet pile wall 13 opposite to the through hole 19, and nuts 22 are screwed onto both ends of the screw thread to form the shade. The concrete block 16 can be fixed to the steel sheet pile 13. Furthermore, a mounting hole 23 for fixing is provided vertically at the rear end of the lower surface of the top plate portion 17, and an angled mounting seat 24 is fixed to the upper end of the back side of the steel sheet pile 13. A bolt 25 inserted into the mounting seat 24 is screwed into the mounting hole 23. Incidentally, the mounting hole 23 may be a vertically arranged through hole, through which a screw rod is inserted, and nuts may be screwed onto both ends of the screw rod to fix both.
6 is a tie rod 27 whose one end is connected to the steel sheet pile wall 13;
is a washer made of a rubber plate. 28 is the upper part 1
4 and the top plate portion 17 is an elastic plate made of rubber or the like. Incidentally, stepped portions 29 are formed at both ends of the cap concrete block 16 to prevent water from entering.

Next, the operation of the above structure will be explained.

The steel sheet piles 11 are connected in advance to form the steel sheet pile wall 13 so that the upper part 14 is approximately at the same level as the water surface 15. Next, the concrete block 16 is suspended by a crane (not shown) or the like to form the side plate part. 18 along the steel sheet pile wall 13 and the top plate part 17 is placed on the upper part 14 of the steel sheet pile wall 13, the screw rod 21 is inserted into the through hole 19.20, and the screw rod 2
Bolts 25 are inserted into the mounting seats 24 to fix the steel sheet pile wall 13 and the top plate part 18. It is.

As described above, after the cap concrete block 16 is precast and set on the steel sheet pile wall 13, the screw rod 21. By fixing both with the bolts 25, the cap concrete block 16 can be fixed, so the work can be completed in a short time by clearing up the reinforcing, concrete block pouring, etc. on site, and curing on the site is also possible. It is possible to shorten the construction period by eliminating the period. In addition, construction costs can be reduced because there is no need for on-site reinforcing work and the installation and removal of complex-shaped concrete block formwork, and the construction work is not affected by the weather.

Furthermore, since the cap concrete block 16 is made of precast, it can be constructed even underwater, and therefore the steel sheet pile wall 13
The upper part 14 of the water surface can be set at approximately the same height as the water surface. Therefore, the length of the steel sheet pile 11 can be shortened and costs can be reduced.

Furthermore, the quality of the shade concrete block 16 can be improved. Furthermore, when repairing, the screw rod 21. bolt 25
By loosening the cap concrete blocks 16, the concrete blocks 16 can be easily replaced.

In addition, since the cap concrete block 16 has the top plate part 17 and the side plate part 18 integrally formed to eliminate the L shape, it can be manufactured easily and the appearance of the upper part of the steel sheet pile wall 13 can be improved.

Moreover, since the top plate part 18 is placed on the upper part 14 of the steel sheet pile wall 13, stability is excellent.

3 and 4 show a second embodiment and a third embodiment, in which the same parts as in the first embodiment are given the same reference numerals, and detailed explanation thereof will be omitted.

In the second embodiment, a flat surface 31. Tapered surface 32. Tapered surface 33. A protrusion 34 and a flat surface 35 are formed, and a flat surface 31A, a tabular surface 32A, a flat surface 32A, a recess 34A and a flat surface 35A are formed on one side of the other shade concrete block 16B. The concrete blocks 16A and 16B are placed side by side, butted against each other. A water stop packing 36 made of an elastic material such as rubber is provided between the tapered surfaces 32 and 32A.

Therefore, water leakage etc. can be prevented by the abutting portions such as the tapered surfaces 32, 32A and the water stop packing 36.

In the third embodiment, a flat surface 37. Taber surface 38. flat surface 3
92 circular convex portion 4o and a flat surface 41 are formed, and a flat surface 3 is formed on the other side of the other shade concrete block 16B.
7A, Taber surface 38A, flat surface 39A, semicircular concave 40A
and a flat surface 41A are formed, and the tapered surface 3
A water stop gasket 42 is provided at 8° 38A to prevent water leakage.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and various modifications are possible, such as fixing a mounting seat such as an angle to the shade concrete block side and fixing it to a steel sheet pile wall via this mounting seat. It is.

[Effects of the Invention] The present invention provides a cap concrete block that is installed on the top of a steel sheet pile wall in which steel sheet piles are continuously cast by engaging the claw portions, and the top plate portion that is placed on the top of the steel sheet pile wall. A side plate section provided along the steel sheet pile wall is installed on one side, and these sheet pile sections are integrally formed by precasting, and by forming the cap concrete block by precasting, it is easy to use on site. Reduce work and shorten construction period.

It is possible to reduce costs.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the first embodiment, Fig. 2 is a cross-sectional plan view thereof, Fig. 3 is a vertical sectional view, Fig. 4 is a plan view of the second embodiment, and Fig. 5 is a third embodiment. FIG. 6 is a sectional view of a conventional example. 11... Steel sheet pile 12... Claw portion 13...
・Steel sheet pile wall 14... Upper part 16... Kasa concrete block

Claims (1)

[Claims] In a cap concrete block that is provided on the top of a steel sheet pile wall where steel sheet piles are continuously cast by engaging the claw portions, a cap concrete block is provided on one side of the top plate portion that is placed on the top of the steel sheet pile wall. A cap concrete block for a steel sheet pile wall, characterized in that a side plate part is provided along the line and the top plate part and the side plate part are integrally formed by precasting.