A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND IMPROVEMENT METHOD AND GROUND STRUCTURE
PROBLEM TO BE SOLVED: To suppress generation of a frost heave on a ground.SOLUTION: A ground structure 1 (road structure 2) comprises: a surface layer 7 including an external surface 7a; and a road bed 5 (water-repellent layer 11) positioned at a lower position than that of the surface layer 7, the road bed being water repellent. A depth L1 from the external surface 7a to the water-repellent layer 11 is equal to or larger than a freezing depth. A water-repellent agent 10 used for forming the water-repellent layer 11 contains an alkali metal silicate and alkali metal siliconate. A ground improvement method includes: supplying the water-repellent agent 10 to a top face 5a of the road bed 5 to form the water-repellent layer 11; and forming the surface layer 7 above the water-repellent layer 11 so as to cover the water-repellent layer 11.SELECTED DRAWING: Figure 1
【課題】地盤における凍上現象の発生を抑制する。【解決手段】地盤構造１（道路構造２）は、外表面７ａを有する表層７と、表層７よりも下位に位置して撥水性を有する路床５（撥水層１１）とを備える。外表面７ａから撥水層１１までの深度Ｌ１は凍結深度以深である。撥水層１１の形成に用いられる撥水剤１０は、アルカリ金属珪酸塩及びアルカリ金属シリコネートを含有する。地盤改良方法は、路床５の上面５ａに撥水剤１０を供給して撥水層１１を形成すること、及び、撥水層１１の上方に撥水層１１を覆うように表層７を形成することを含む。【選択図】図１
GROUND IMPROVEMENT METHOD AND GROUND STRUCTURE
PROBLEM TO BE SOLVED: To suppress generation of a frost heave on a ground.SOLUTION: A ground structure 1 (road structure 2) comprises: a surface layer 7 including an external surface 7a; and a road bed 5 (water-repellent layer 11) positioned at a lower position than that of the surface layer 7, the road bed being water repellent. A depth L1 from the external surface 7a to the water-repellent layer 11 is equal to or larger than a freezing depth. A water-repellent agent 10 used for forming the water-repellent layer 11 contains an alkali metal silicate and alkali metal siliconate. A ground improvement method includes: supplying the water-repellent agent 10 to a top face 5a of the road bed 5 to form the water-repellent layer 11; and forming the surface layer 7 above the water-repellent layer 11 so as to cover the water-repellent layer 11.SELECTED DRAWING: Figure 1
【課題】地盤における凍上現象の発生を抑制する。【解決手段】地盤構造１（道路構造２）は、外表面７ａを有する表層７と、表層７よりも下位に位置して撥水性を有する路床５（撥水層１１）とを備える。外表面７ａから撥水層１１までの深度Ｌ１は凍結深度以深である。撥水層１１の形成に用いられる撥水剤１０は、アルカリ金属珪酸塩及びアルカリ金属シリコネートを含有する。地盤改良方法は、路床５の上面５ａに撥水剤１０を供給して撥水層１１を形成すること、及び、撥水層１１の上方に撥水層１１を覆うように表層７を形成することを含む。【選択図】図１
GROUND IMPROVEMENT METHOD AND GROUND STRUCTURE
地盤改良方法、及び、地盤構造
TERUI HIDEYUKI (author) / OKAMOTO MICHITAKA (author) / MIKAMI HIROMICHI (author) / KAWANO KENICHI (author) / KURODA AKIRA (author)
2018-05-31
Patent
Electronic Resource
Japanese
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