In this study, the 3D-analysis of multi-functional fishway with underground passage and is carried out by SAP2000 soft ware. In case of width 2m, 1m of vertical cross-section structure, the width 400mm× length 400mm and the width 1,000mm× length 400mm of square type were experimental parameters. The multi-functional fishway with underground passage and sediment block system is propased in Jeju Island.

3D-analysis by SAP2000 software is required for designing of sea pools in order to settle the problems regarding the degradation of the concrete durability. Sea pools are faced with sea water including salts so it will be used high strength concrete, reinforced high strength and urethane for its construction. The purpose of this paper is to establish specifications and data base for the construction of the sea pools. This results of analysis show that 50MPa strength of concrete is the most suitable and 4m wave is more advantageous than that of 2m.

Fishway analysis is required in order to protect depleting fish in the rivers. Recently, ecosystem restoration is absolutely necessary for fishes in the shallow rivers when water overflows by typhoon, 3D-analysis by SAP2000 software is required for designing of natural type of fish passage in order to settle problems regarding the degradation of the concrete durability. This results of analysis show that natural tpe of fishway could be constructed in rivers of Korea.

The purpose of this paper is to establish specifications, to provide design database for the construction of the sea pools(30m x60m x 1.2m). When water overflows by high waves, 3D-analysis by SAP2000 software is required for designing of sea pools in order to settle the problems that the degradation of the concrete durability. This result of analysis show that the strngth of concrete over 60MPa and the distance of 4m plie is more advantageous, then that of 2m.

Fish movement was blocked by Dam construction in korea, but fish of the ecosystem can be destoryed without movement of fish in the small stream or river. In this study, the water ladder type of fishway with the fish's ecological specific character is proposed. That is created similar to the real natural environment in order to overcome differences in water pressure. It consists water hydrology, bypass, viewing chamber and viewing windows. It is used IT pumping system and bypass fishway for dry season especially. 3D analysis by SAP2000 Soft Ware is essential in concrete structures for the degradation of its durability using the multi-functional fishway's advantages. The size of water tank(4m×4m×5m) is more advantageous than that of other size.

In this study, the multi-functional fishway with underground passage, sediment block system reflect the fish's ecological characteristics and many kinds of fish up and down easily is proposed. The 3D-analysis of Reinforced Concrete(R/C) Slab and R/C + Steel Concrete(S/C) Slab with rectangular underground passage are carried out by SAP 2000 software program for multi-functional fishway's durability. The Slab analysis results show that the R/C Slab type of the maximum stress is decreased by 33.5 than that of R/C + S/C type(Size:1m x 0.4m, Velocity: 1.6m/sec)and the shortage of shear is 2 than that of R/C + S/C type(Size:1m x 0.4m, Velocity: 1.6m/sec). The stability of R/C + S/C concrete slab with underground passage is more advantageous than that of R/C concrete slab.

The purpose of this paper is to establish specifications and to make database for the construction of sea pools. Sea pools are faced with sea water including salts, so it will be used that high strength concrete, reinforced high strength and urethane for its construction. 3D-analysis by SAP2000 software is required for designing of sea pools in order to confirm its degradation of the concrete durability. This results show that the strength of concrete of 40MPa is the most suitable and 3m wave is more advantageous than that of 4m.

The purpose of this paper is to establish specifications and to make database for the construction of sea pools. Sea pools are faced with sea water including salts, so it will be used that high strength concrete, reinforced high strength and urethane for its construction. 3D-analysis by SAP2000 software is required for designing of sea pools in order to confirm its degradation of the concrete durability. This results show that the strength of concrete of 50MPa is the most suitable and 4m wave is more advantageous than that of 2m.

The purpose of this paper is to establish specifications, to provide design database for the construction of the sea pools(30m x60m x 1.5m). In case of water overflows by high waves, 3D-analysis by SAP2000 software is required for designing of sea pools in order to settle the problems that the degradation of the concrete durability.

3D-analysis by SAP2000 software is required for designing of sea pools in order to settle the problems regarding the degradation of the concrete durability. Sea pools are faced with sea water including salts so it is used high strength concrete, reinforced high strength and urethane for its construction. The purpose of this paper is to establish specifications and data for the construction of the sea pools.

Recently, ecosystem restoration is absolutely necessary for fishes in the shallow rivers. In case of water overflows by typhoon, 3D-analysis by SAP2000 software is required for designing of natural type of fish passage in order to settle its problems regarding the degradation of the concrete durability.

The purpose of this paper is to establish specifications and to make database for the construction of sea pools. Sea pools are faced with sea water including salts so it is used that high strength concrete, reinforced high strength and urethane for its construction. 3D-analysis by SAP2000 software is required for designing of sea pools in order to solved the problems regarding the degradation of the concrete durability.

In this study, the multi-functional fishway with underground passage, sediment block system reflect the fish's ecological characteristics and many kinds of fish up and down easily is proposed. The 3D-analysis of Reinforced Concrete(R/C) Slab and R/C + Steel Concrete(S/C) Slab with rectangular underground passage are carried out by SAP 2000 software program about multi-functional fishway's durability. The Slab analysis results show that the R/C Slab type of the maximum stress is decreased by 27.8 than that of R/C + S/C type(Size:0.8m x 0.1m, Velocity: 1.6m/sec)and the shortage of shear is 31.9 than that of R/C + S/C type(Size:0.8m x 0.2m, Velocity: 1.6m/sec). The stability of R/C + S/C concrete slab with underground passage is more favorable than that of R/C concrete slab.

Fish movement was blocked by Dam construction in korea, but fish of the ecosystem can be destoryed without movement of fish in the small stream or river. In this study, the water ladder type of fishway with the fish's ecological specific character is proposed. That is created similar to the real natural environment in order to overcome differences in water pressure. It consists water hydrology, bypass, viewing chamber and viewing windows. It is used IT pumping system and bypass fishway for dry season especially. 3D analysis by SAP2000 Soft Ware is essential in concrete structures for the degradation of its durability using the multi-functional fishway's advantages.

Based on the study of chloride migration coefficient and hydration heat evolution, it was found that the use of ternary blended cement was effective to achieve desired service life and minimum crack index. On the other hand, a high level of compressive strength is required for marine concrete mix design.

In this study, the world's first multi functional fishway is proposed including underground passway, 3D-analysis of slab that load carrying capacity conditions and pectinate and vertical structure by SAP2000 recognized internationally. The structural analysis results are showed comb from than rectangular form of the maximum stress decreased 35.88%, 32.35% reduction in the moment, shear stress decreased 47.36%. Sidewall structural analysis results are showed comb form than the rectangular form of the maximum stress decreased 22.22, 31.88% reduction in the moment, shear stress decreased 43.48%. When we design to alleviate the water pressure of fishway wall, comb shape is more economical design than perpendicular form.

Many kinds of fishways were installed approximately 5,500 in Korea. However, it was a big problem that the fish to move from down to up streams for spawning just in dry season. When flooded, the exit of fishway also was blocked by sediments, stones, wood chips and vinyls etc. It is not a simple slab of configuration but also well designed and constructed a total fishway system with sediments block and underground passage allow fish to continue moving.