JPH0716735Y2 - Seawall block - Google Patents

Description

[Detailed Description of the Invention] << Industrial Application Field >> The present invention relates to a concrete block forming a bank stop for a seawall.

<Prior art> Conventionally, the seawalls have been constructed by placing a wooden formwork with water-permeable sheet piles sandwiched between them and placing concrete on it.

<Problems to be solved by the device> This method is not only very time-consuming to make the form, but also the form is raised due to the spring water, which makes the construction difficult.

This invention aims at providing the bank retaining block of the seawall for solving such a problem.

<Means for Solving the Problem> The bank retaining block of the revetment of the present invention is a concrete block having a substantially trapezoidal cross section, which is arranged over a series of water-proof sheet piles driven into the ground. It has an internal cavity that opens towards the bottom. There is an opening at the top for pouring concrete in the cavity. A step portion is formed in the upper portion on the back side for receiving the lining.

<Operation> To use, this block is arranged so as to straddle the water-proof sheet pile, and adjacent blocks are connected with bolts or the like. Next, the filling concrete is poured into the internal cavity from the mouth of the top end.

In this way, once the concrete is hardened, the legal closure is completed.

<Example> As shown in Fig. 1, this block 1 is a concrete block having a substantially trapezoidal cross section, and has an internal cavity that opens toward the bottom. The mouth 2 leading to the internal cavity is open at the top. A step portion 13 for receiving a lining is formed on the upper portion of the back side.

In the figure, reference numerals 3 and 4 are bolt holes, and reference numeral 5 is an air vent hole.

FIG. 2 shows the use condition, and the reference numeral 6 indicates the riverbed,
Reference numeral 7 is a series of steel sheet piles (sheet piles) that have been hammered in to block water. The blocks 1 are arranged on the sheet pile 7 in such a manner as to straddle them. Adjacent blocks are fastened together with connecting bolts 8 passed through the bolt holes 3.

Next, the long rebar 10 is placed on the fixing bolt 9 that has been passed through the bolt hole 4 in advance, and is bound.

In this way, the filling concrete 11 is poured from the mouth 2 and is compacted using the vibrator so that the cement pace comes out from the air vent hole 5.

In this way, when the concrete is cured and the concrete 11 is solidified, the mooring is completed.

Then, the slope is covered with concrete to form a slope lining 12. The lower end of the slope lining 12 is received by the stepped portion 13 of the block.

<< Effect of Device >> Since the block of this device has an internal cavity that opens toward the bottom, it can be arranged on a block of a series of water-impermeable sheet piles driven into the ground. After placing them side by side, by pouring concrete from the mouth of the top, it is possible to easily construct a strong seawall retaining wall that is integrated with the water blocking sheet pile. Of course, the blocks are made of concrete so they won't float up in spring water during construction. In addition, the trapezoidal cross section and wide skirt make it easy to install, which makes installation extremely easy. Further, since the step portion is formed on the upper portion on the back side, the lower end of the lining can be supported by this step portion, and there is an effect that the construction of the lining can be facilitated.

[Brief description of drawings]

FIG. 1 is a perspective view of the dead-end block, and FIG. 2 …… Mouth 7 …… Shipboard 11 …… Filled concrete

Claims (1)

[Scope of utility model registration request] 1. A concrete block having a substantially trapezoidal cross section, which is arranged over a series of water-impermeable sheet piles 7 driven into the ground, and has an internal cavity which opens toward the bottom. The bank 2 has a mouth 2 for pouring the filling concrete 11 in the cavity at the top, and a step 13 for receiving the lining 12 on the rear upper side.