A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SAND BOIL PREVENTION METHOD
PROBLEM TO BE SOLVED: To provide a sand boil prevention method that retains an effect to prevent a sand boil even after elapse of time.SOLUTION: A sand boil prevention method for constructing a pavement structure 1 on a soft ground with which liquefaction accompanying an earthquake is a concern. A sand boil capturing layer 4 formed by laying molten slag of coal ash to a prescribed thickness is formed as a part of the pavement structure 1, the molten slag of coal ash being a by-product of coal gasification compound power generation. The molten slag of coal ash has lower solidification property and secures water permeability over a longer period, compared to other types of slag that solidifies with time and is likely to decline in water permeability.SELECTED DRAWING: Figure 1
【課題】本発明は、時間が経過しても噴砂を防止する効果を維持することができる噴砂防止工法を提供する。【解決手段】地震に起因する液状化が懸念される軟弱地盤上に舗装構造１を構築する噴砂防止工法であって、石炭ガス化複合発電で副産された石炭灰溶融スラグを所定の厚さに敷設してなる噴砂捕獲層４を舗装構造１の一部に形成する。石炭灰溶融スラグは、時間の経過とともに固化し、透水性が低下する可能性がある他のスラグに比べると固化特性は小さく、透水性が長期間にわたって確保される。【選択図】図１
SAND BOIL PREVENTION METHOD
PROBLEM TO BE SOLVED: To provide a sand boil prevention method that retains an effect to prevent a sand boil even after elapse of time.SOLUTION: A sand boil prevention method for constructing a pavement structure 1 on a soft ground with which liquefaction accompanying an earthquake is a concern. A sand boil capturing layer 4 formed by laying molten slag of coal ash to a prescribed thickness is formed as a part of the pavement structure 1, the molten slag of coal ash being a by-product of coal gasification compound power generation. The molten slag of coal ash has lower solidification property and secures water permeability over a longer period, compared to other types of slag that solidifies with time and is likely to decline in water permeability.SELECTED DRAWING: Figure 1
【課題】本発明は、時間が経過しても噴砂を防止する効果を維持することができる噴砂防止工法を提供する。【解決手段】地震に起因する液状化が懸念される軟弱地盤上に舗装構造１を構築する噴砂防止工法であって、石炭ガス化複合発電で副産された石炭灰溶融スラグを所定の厚さに敷設してなる噴砂捕獲層４を舗装構造１の一部に形成する。石炭灰溶融スラグは、時間の経過とともに固化し、透水性が低下する可能性がある他のスラグに比べると固化特性は小さく、透水性が長期間にわたって確保される。【選択図】図１
SAND BOIL PREVENTION METHOD
噴砂防止工法
TAKAHASHI SHINICHI (author) / MAEDA AKIRA (author)
2016-09-29
Patent
Electronic Resource
Japanese
IPC:
E02D
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