A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONSTRUCTION METHOD FOR RECLAIMED LAND ON SEA
To provide a construction method for reclaimed lands on the sea for which the tensioning force of a ground anchor that prevents floating due to fluctuating buoyance is defined.SOLUTION: The construction method for reclaimed lands on the sea comprises: connecting a plurality of segments 1, in which hollow parts 2 are provided on heads of pile foundations 12 that are driven into a seabed ground down to a required depth, using connection members 10 to form a plane of a cavity body 24 with a required width on the sea surface; fixing and arranging tension materials of a ground anchor up to a predetermined depth of the seabed ground 13 while passing through connection sections of the plane of the cavity body to form anchor body long sections 15; tensionally fixing the tension materials on the uppermost surface of the segments 1; making the total tensioning force of the tension materials smaller than the weight of the cavity body 24; increasing tension with response to extension occurring with the tension materials when buoyance is applied to the cavity body 24; and defining the tension materials so that the total comprehensive tension (initial tensioning force plus tension increment) occurring with each of the tension materials is equal to the maximum buoyance and each comprehensive tensioning force is 0.6 Pu or less when the extension amount reaches a predetermined value.SELECTED DRAWING: Figure 3
【課題】変動する浮力に対して浮き上がりを防止する地盤アンカーの緊張力を定めた海上陸地の構築方法を提供する。【解決手段】海底地盤の所要深さまで打ち込んだ杭基礎１２の頭部に中空部２を設けてある複数のセグメント１を連結部材１０を用いて連結して海面に所要広さの空洞体２４の平面を形成し、空洞体平面の連結部を貫通して、地盤アンカーの緊張材を海底地盤１３の所定深さまで配置し、定着してアンカー体長部１５を形成すると共に、セグメント１の最上面に緊張材を緊張定着し、各緊張材の緊張力の合計を空洞体２４の自重より小さくし、空洞体２４に浮力が作用する時に、緊張材に生じる伸びに伴い張力を増加させ、伸び量が所定値に達した時に、各緊張材に生じる総張力（初期緊張力＋張力増分）の合計が最大浮力に等しく、且つ、夫々の総緊張力が０．６Ｐｕ以下になるように緊張材を定める構成とした。【選択図】図３
CONSTRUCTION METHOD FOR RECLAIMED LAND ON SEA
To provide a construction method for reclaimed lands on the sea for which the tensioning force of a ground anchor that prevents floating due to fluctuating buoyance is defined.SOLUTION: The construction method for reclaimed lands on the sea comprises: connecting a plurality of segments 1, in which hollow parts 2 are provided on heads of pile foundations 12 that are driven into a seabed ground down to a required depth, using connection members 10 to form a plane of a cavity body 24 with a required width on the sea surface; fixing and arranging tension materials of a ground anchor up to a predetermined depth of the seabed ground 13 while passing through connection sections of the plane of the cavity body to form anchor body long sections 15; tensionally fixing the tension materials on the uppermost surface of the segments 1; making the total tensioning force of the tension materials smaller than the weight of the cavity body 24; increasing tension with response to extension occurring with the tension materials when buoyance is applied to the cavity body 24; and defining the tension materials so that the total comprehensive tension (initial tensioning force plus tension increment) occurring with each of the tension materials is equal to the maximum buoyance and each comprehensive tensioning force is 0.6 Pu or less when the extension amount reaches a predetermined value.SELECTED DRAWING: Figure 3
【課題】変動する浮力に対して浮き上がりを防止する地盤アンカーの緊張力を定めた海上陸地の構築方法を提供する。【解決手段】海底地盤の所要深さまで打ち込んだ杭基礎１２の頭部に中空部２を設けてある複数のセグメント１を連結部材１０を用いて連結して海面に所要広さの空洞体２４の平面を形成し、空洞体平面の連結部を貫通して、地盤アンカーの緊張材を海底地盤１３の所定深さまで配置し、定着してアンカー体長部１５を形成すると共に、セグメント１の最上面に緊張材を緊張定着し、各緊張材の緊張力の合計を空洞体２４の自重より小さくし、空洞体２４に浮力が作用する時に、緊張材に生じる伸びに伴い張力を増加させ、伸び量が所定値に達した時に、各緊張材に生じる総張力（初期緊張力＋張力増分）の合計が最大浮力に等しく、且つ、夫々の総緊張力が０．６Ｐｕ以下になるように緊張材を定める構成とした。【選択図】図３
CONSTRUCTION METHOD FOR RECLAIMED LAND ON SEA
海上陸地の構築工法
KUROSAWA RYOHEI (author)
2020-10-29
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
From Natural to Reclaimed Land
| Taylor & Francis Verlag | 1983
Settlement due to Diaphragm Wall Construction in Reclaimed Land in Hong Kong
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Vacuum preloading consolidation of reclaimed land
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