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Wave Dissipating Foot Protection Block
These are products that conserve the natural environment and the ecosystems of rivers and coasts. They help to block waves and guard against riverbed scouring and sinking.

CAD data download service / Member registration

Shake Block

Shake Block
Download PDF(2.3MB)
Major features

By meshing regular tetrahedrons, it is possible to lay this steadily in any field. In addition, the KD value is 8.6, the porosity is 56%, it is a product with excellent stability and economic efficiency.

Applications

Coasts: Detached breakwaters, jetties
Rivers: Foot protection

Acquisition of Hydraulic Characteristic Values Certificate of Bulkhead Block
Shapes, specifications
Shake block[1.0 to 50.0 ton type] CAD data download (Member only)

Shake block[1.0 to 50.0 ton type]

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
g h l
1.0 0.436 3.761 1.003 9.836 1.440 1.194 1.298
2.0 0.870 6.185 2.001 19.623 1.813 1.503 1.628
3.0 1.300 8.084 2.990 29.322 2.073 1.718 1.861
4.0 1.735 9.796 3.991 39.138 2.282 1.891 2.048
5.0 2.180 11.410 5.014 49.171 2.463 2.041 2.211
6.0 2.611 12.867 6.005 58.889 2.615 2.167 2.348
8.0 3.469 15.550 7.979 78.247 2.875 2.383 2.581
10.0 4.353 18.090 10.012 98.184 3.101 2.570 2.784
12.0 5.213 20.400 11.990 117.582 3.293 2.729 2.956
15.0 6.516 23.671 14.987 146.972 3.547 2.940 3.184
20.0 8.680 28.659 19.964 195.780 3.903 3.235 3.504
25.0 10.878 33.313 25.019 245.353 4.208 3.488 3.777
30.0 13.069 37.649 30.059 294.778 4.474 3.708 4.016
40.0 17.383 45.534 39.981 392.080 4.920 4.077 4.416
50.0 21.711 52.809 49.935 489.695 5.298 4.391 4.756
A large-sized shake block[60.0 to 80.0 ton type]CAD data download (Member only)

A large-sized shake block[60.0 to 80.0 ton type]

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
g h l
60.0 26.143 57.183 60.128 589.654 5.327 4.422 4.812
80.0 34.869 69.288 80.199 786.484 5.864 4.868 5.297
A truncated shake blockCAD data download (Member only)

A truncated shake block

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
g h l
1.5 0.707 4.880 1.626 15.946 1.813 0.769 1.628
2.5 1.056 6.379 2.429 23.820 2.073 0.880 1.861
3.0 1.409 7.731 3.241 31.783 2.282 0.968 2.048
4.0 1.771 9.004 4.073 39.942 2.463 1.045 2.211
5.0 2.120 10.153 4.876 47.817 2.615 1.110 2.348
6.5 2.817 12.271 6.479 63.537 2.875 1.220 2.581
8.0 3.535 14.276 8.131 79.738 3.101 1.316 2.784
10.0 4.233 16.099 9.736 95.478 3.293 1.397 2.956
12.0 5.291 18.680 12.169 119.337 3.547 1.505 3.184
16.0 7.048 22.616 16.210 158.966 3.903 1.656 3.504
20.0 8.833 26.288 20.316 199.232 4.208 1.786 3.777
Construction Example
  • Hyogo prefecture, Mega Port
    Hyogo prefecture, Mega Port
    4 ton type standard type shake block
  • Shizuoka prefecture, Shimizu coast
    Shizuoka prefecture, Shimizu coast
    10 ton type truncated shake block
  • Shizuoka prefecture, Fuji coast
    Shizuoka prefecture, Fuji coast
    60 ton large type shake block
  • Shizuoka prefecture, Shinohara coast
    Shizuoka prefecture, Shinohara coast
    25 ton standard type shake block

Surf Block

Surf Block
Download PDF(2.82MB)
Surf Block
Download PDF(642KB)
Major features

It is a block with excellent stability against external forces at coasts and rivers because the center of gravity is low, and the block surface roughness is moderate.

Applications

Coasts: Artificial reef work, gently sloping revetment bank work, coating work, Foot protection
Rivers: Foot protection, civil engineering work

Shapes, specifications
Surf Block[1.0 to 15.0 ton type]CAD data download (Member only)

Surf block[1.0 to 15.0 ton type]

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
1.0 0.435 4.453 1.001 9.816 1.190 1.190 0.525
2.0 0.871 7.076 2.003 19.643 1.500 1.500 0.662
3.0 1.305 9.260 3.002 29.440 1.716 1.716 0.757
4.0 1.743 11.234 4.009 39.315 1.890 1.890 0.833
5.0 2.176 13.023 5.005 49.082 2.035 2.035 0.897
6.0 2.609 14.700 6.001 58.850 2.162 2.162 0.953
8.0 3.481 17.814 8.006 78.512 2.380 2.380 1.050
10.0 4.352 20.674 10.010 98.165 2.564 2.564 1.131
12.0 5.219 23.335 12.004 117.719 2.724 2.724 1.201
15.0 6.528 27.090 15.015 147.247 2.935 2.935 1.294

* For details on reinforcing steel connections, please contact us.

A large-sized surf block[20.0 to 30.0 ton type]CAD data download (Member only)

A large-sized surf block[20.0 to 30.0 ton type]

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
20.0 8.713 28.648 20.039 196.515 3.500 3.000 1.340
25.0 10.880 33.975 25.024 245.402 3.850 3.000 1.490
30.0 13.058 38.594 30.033 294.523 3.850 3.000 1.745

* We use hanging rebar for block transportation. For details about hanging rebar, please contact us.

Construction Example
  • Shizuoka Prefecture Ashitori River Bed Protection Work
    Shizuoka Prefecture Ashitori River Bed Protection Work
    Surf Block 2 ton type
  • Oita Prefecture Mountain Bridge Pier Foot Protection Work
    Oita Prefecture Mountain Bridge Pier Foot Protection Work
    Surf Block 4 ton type
  • Hokkaido Shirao Coastbank Breakwater
    Hokkaido Shirao Coastbank Breakwater
    Surf Block 2 ton type
  • Akita Prefecture Port of Honjo Breakwater
    Akita Prefecture Port of Honjo Breakwater
    Surf Block 3 ton type

Surf Flat

Surf flat
Download PDF(865KB)
Major features

The surf flat is a flat stone, and the structure of the formwork consists of four (N type) bottom plates which facitilates work such as assembly and stamping. Furthermore, because the required quanity per unit area is low, it is very economical.

Applications

Coasts: Artificial reef work, gently sloping revetment bank work, coating work、Foot protection
Rivers: Foot protection, civil engineering work

Acquisition of Hydraulic Characteristic Values Certificate of Bulkhead Block
Shapes, specifications
Surf Flat [K type]CAD data download (Member only)

Surf Flat [K type]

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
1.0 0.462 3.188 1.062 10.415 1.300 1.300 0.459
2.0 0.904 4.999 2.079 20.388 1.600 1.600 0.583
3.0 1.391 7.331 3.199 31.371 1.890 1.890 0.629
4.0 1.789 8.315 4.114 40.345 2.035 2.035 0.709
5.0 2.285 9.630 5.255 51.534 2.162 2.162 0.763
6.0 2.702 10.843 6.214 60.939 2.380 2.380 0.783

* For details on reinforcing steel connections, please contact us.
* We use hanging rebar for block transportation. For details about hanging rebar, please contact us.

Surf Flat [KA type]CAD data download (Member only)

Surf Flat [KA type]

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
1.0 0.437 3.479 1.005 9.856 1.300 1.300 0.459
2.0 0.870 5.397 2.001 19.623 1.600 1.600 0.583
3.0 1.308 7.924 3.008 29.498 1.890 1.890 0.629
4.0 1.742 8.850 4.006 39.285 2.035 2.035 0.709
5.0 2.174 10.414 5.000 49.033 2.162 2.162 0.763
6.0 2.611 11.588 6.005 58.889 2.380 2.380 0.783

* For details on reinforcing steel connections, please contact us.
* We use hanging rebar for block transportation. For details about hanging rebar, please contact us.

Surf Flat [N type]CAD data download (Member only)

Surf Flat [N type]

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
1.0 0.454 3.050 1.044 10.238 1.300 1.300 0.370
2.0 0.888 4.776 2.042 20.025 1.600 1.600 0.470
3.0 1.359 6.536 3.125 30.646 1.890 1.890 0.500
4.0 1.758 7.519 4.043 39.648 2.035 2.035 0.580
5.0 2.205 9.070 5.071 49.730 2.162 2.162 0.610
6.0 2.622 10.283 6.030 59.134 2.380 2.380 0.630

* For details on reinforcing steel connections, please contact us.
* We use hanging rebar for block transportation. For details about hanging rebar, please contact us.

Surf Flat [NA type]CAD data download (Member only)

Surf Flat [NA type]

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
1.0 0.429 3.342 0.986 9.669 1.300 1.300 0.370
2.0 0.854 5.174 1.964 19.260 1.600 1.600 0.470
3.0 1.276 7.129 2.934 28.773 1.890 1.890 0.500
4.0 1.710 8.055 3.933 38.570 2.035 2.035 0.580
5.0 2.095 9.855 4.818 47.248 2.162 2.162 0.610
6.0 2.531 11.028 5.821 57.085 2.380 2.380 0.630

* For details on reinforcing steel connections, please contact us.
* We use hanging rebar for block transportation. For details about hanging rebar, please contact us.

Surf Flat [T type]CAD data download (Member only)

Surf Flat [T type]

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
1.0 0.496 3.432 1.141 11.189 1.300 1.300 0.740
2.0 0.974 5.393 2.240 21.967 1.600 1.600 0.940
3.0 1.436 7.238 3.365 32.999 1.890 1.890 1.000
4.0 1.920 8.463 4.416 43.306 2.035 2.035 1.160
5.0 2.393 10.117 5.504 53.976 2.162 2.162 1.220
6.0 2.830 11.380 6.509 63.831 2.380 2.380 1.260

* For details on reinforcing steel connections, please contact us.
* We use hanging rebar for block transportation. For details about hanging rebar, please contact us.

Construction Example
  • Hyogo Prefecture Oba Headworks
    Hyogo Prefecture Oba Headworks
    Surf Flat with hole, 3 ton type
  • Shizuoka Prefecture Ugusu River Foot Protection Work
    Shizuoka Prefecture Ugusu River Foot Protection Work
    Surf Flat standard, 4 ton type
  • Toyama Prefecture Jinzumachi River Foot Protection Work
    Toyama Prefecture Jinzumachi River Foot Protection Work
    Surf Flat standard, 6 ton type
  • Fukui Prefecture Kinomeya River Bed Protection Work
    Fukui Prefecture Kinomeya River Bed Protection Work
    Surf Flat Projection type, 1 ton type

Surf Step

Surf step
Download PDF(313KB)
Major features

These are blocks that inherited the general idea from the surf block, developed with the theme of “harmony with the power of nature” and advanced by research and experimentation. They are compatible with surf blocks and can be used as a hoistway for surf blocks.

Applications

Coasts: Stairway protection work

Shapes, specifications
Surf stepCAD data download (Member only)

Surf step

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
2.0 1.031 6.600 2.371 23.252 1.500 1.500 0.590
4.0 1.780 9.639 4.094 40.148 1.890 1.890 0.643

* For details on reinforcing steel connections, please contact us.
* We use hanging rebar for block transportation. For details about hanging rebar, please contact us.

Construction Example
  • Fukui Prefecture　Gamou Coast
    Fukui Prefecture　Gamou Coast
    Surf Step 2 ton type
  • Ibaraki Prefecture Tamada Coast
    Ibaraki Prefecture Tamada Coast
    Surf Step 2 ton type
  • Toyama Prefecture Fushiki Port
    Toyama Prefecture Fushiki Port
    Surf Step 2 ton type
  • Chiba Prefecture Node Coast
    Chiba Prefecture Node Coast
    Surf Step 4 ton type

Surf Flat L type

Surf Flat L type 5.0 tyoe
Catalog(5.0 type)(543KB)
Surf Flat L type 2.0 type
Catalog(2.0 type)(1.78MB)
Major features
  • 1. This is a block that incorporates the effects of fish breeding places for foot protection in rivers.
  • 2. Reductions in costs of construction can be anticipated because the number needed per unit is small due to the shape.
  • 3. It may support low water revetments and high water revetments.
Applications

Rivers: Foot protection

Shapes, specifications
Surf Flat L type (5.0 type) CAD data download (Member only)

Surf Flat L type (5.0 type)

Standards
(ton type) 		Volume
(㎥) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
L-TK 5.13 50.31 2.23 9.99 1.962 2.700 09.03
L-TK端部型 4.90 48.05 2.13 9.61 1.962 2.500 0.903
L-K 4.85 47.56 2.11 9.07 1.962 2.700 0.653
L-K端部型 4.62 45.31 2.11 9.07 1.962 2.500 0.653
Surf Fral L type (2.0 type)standard typeCAD data download (Member only)

Surf Fral L type (2.0 type)standard type

Call name Actual mass
(ton) 		Actual weight
(KN) 		Volume
(㎡) 		Form area
(㎡) 		Basic size(m)
L B H
L-TK 2.10 20.60 0.91 5.20 1.450 1.970 0.718
L-T 2.06 20.20 0.89 5.03 1.450 1.970 0.605
L-K 2.00 19.61 0.87 4.93 1.450 1.970 0.538
L-N 1.97 19.32 0.85 4.75 1.450 1.970 0.425
Surf Fral L type (2.0 type)end typeCAD data download (Member only)

Surf Fral L type (2.0 type)end type

Call name Actual mass
(ton) 		Actual weight
(KN) 		Volume
(㎡) 		Form area
(㎡) 		Basic size(m)
L B H
L-TK 1.98 19.42 0.86 5.01 1.450 1.800 0.718
L-T 1.94 19.02 0.84 4.84 1.450 1.800 0.605
L-K 1.89 18.53 0.82 4.74 1.450 1.800 0.538
L-N 1.85 18.14 0.80 4.57 1.450 1.800 0.425
Construction Example
  • Ministry of Land, Infrastructure and Transport Abe River Surf Flat L-K5.0
    Ministry of Land, Infrastructure and Transport Abe River
    Surf Flat L-K5.0
  • Ministry of Land, Infrastructure and Transport Abe River Surf Flat L-K5.0
    Ministry of Land, Infrastructure and Transport Abe River
    Surf Flat L-TK5.0
  • Ministry of Land, Infrastructure and Transport Oi River Surf Flat L-TK5.0
    Ministry of Land, Infrastructure and Transport Oi River
    Surf Flat L-TK5.0
  • Ministry of Land, Infrastructure and Transport Oi River Surf Flat L-TK5.0
    Ministry of Land, Infrastructure and Transport Oi River
    Surf Flat L-TK5.0

Tine Block S type [Sold only Chugoku or Kyushu region]

タインブロックS型
Download PDF(1.96MB)
Major features

This is an upright wave-dissipating concrete block with beautiful houndstooth check.It has great wave absorbing performance and adapted to natural environment.


Applications

road[protection work] : Upright wave breaker
Coasts: Upright wave breaker

Shapes, specifications
Tine Block S typeCAD data download (Member only)

Tine Block S type

Standards
(ton type) 		Volume
(㎡) 		Form area
(㎡) 		Actual mass
(ton) 		Actual weight
(KN) 		Basic size(m)
L B H
1.0 0.462 3.809 1.063 10.424 1.240 0.900 0.720
2.0 0.903 5.951 2.077 20.368 1.550 1.125 0.900
4.0 1.740 9.216 4.002 39.246 1.930 1.400 1.120
Construction Example
  • Oita Prefecture Usuki city
    Oita Prefecture Usuki city
    Tine Block S type [2 ton type/4 ton type]
  • Nagasaki Prefecture Minamishimabara city
    Nagasaki Prefecture Minamishimabara city
    Tine Block S type [1 ton type]

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