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A platform for research: civil engineering, architecture and urbanism
CONSOLIDATION SUBSIDENCE METHOD FOR UNDERWATER GROUND
To ensure necessary water depth in a sea route or an anchorage, and to reduce the cost and labor involved in doing so.SOLUTION: A plurality of strainer pipes 11 having a strainer portion at a lower end and a supply and exhaust pipe 14 are buried in the underwater ground G. The underground water level is lowered by suctioning underground water from the plurality of strainer pipes 11 through the strainer portions. An unsaturated zone is formed in the ground around the plurality of strainer pipes 11. By vacuum suctioning the air in the unsaturated zone through the supply and exhaust pipe 14, a negative pressure zone is formed in the ground around the plurality of strainer pipes 11. Thereafter, the air is sent to the negative pressure zone through the supply and exhaust pipe 14 to cause cavitation of moisture present in gaps between countless soil particles in the underwater ground G, thereby causing the moisture to implode, and a shock wave to generate. Water is removed from the gaps between countless soil particles, and the underwater ground G is consolidated and settled by water pressure and atmospheric pressure.SELECTED DRAWING: Figure 3
【課題】航路や泊地において必要な水深を確保できるとともに、その際にかかるコストや手間を軽減する。【解決手段】水底地盤Ｇに、下端部にストレーナ部を有する複数のストレーナ管１１と送排気管１４とを埋設し、複数のストレーナ管１１からストレーナ部を介して地中の水を吸引することで地下水位を低下させ、複数のストレーナ管１１の周囲の地中に不飽和ゾーンを形成し、不飽和ゾーンの空気を、送排気管１４を通じて真空吸引することで、複数のストレーナ管１１の周囲の地中に負圧化ゾーンを形成し、その後、当該負圧化ゾーンに送排気管１４を通じて空気を送ることで、水底地盤Ｇ中における無数の土粒子間の間隙に存在する水分に対してキャビテーションを起こさせることにより水分を爆縮させるとともに衝撃波を発生させ、無数の土粒子間の間隙から水分を取り除き、水圧及び大気圧によって水底地盤Ｇを圧密沈下させる。【選択図】図３
CONSOLIDATION SUBSIDENCE METHOD FOR UNDERWATER GROUND
To ensure necessary water depth in a sea route or an anchorage, and to reduce the cost and labor involved in doing so.SOLUTION: A plurality of strainer pipes 11 having a strainer portion at a lower end and a supply and exhaust pipe 14 are buried in the underwater ground G. The underground water level is lowered by suctioning underground water from the plurality of strainer pipes 11 through the strainer portions. An unsaturated zone is formed in the ground around the plurality of strainer pipes 11. By vacuum suctioning the air in the unsaturated zone through the supply and exhaust pipe 14, a negative pressure zone is formed in the ground around the plurality of strainer pipes 11. Thereafter, the air is sent to the negative pressure zone through the supply and exhaust pipe 14 to cause cavitation of moisture present in gaps between countless soil particles in the underwater ground G, thereby causing the moisture to implode, and a shock wave to generate. Water is removed from the gaps between countless soil particles, and the underwater ground G is consolidated and settled by water pressure and atmospheric pressure.SELECTED DRAWING: Figure 3
【課題】航路や泊地において必要な水深を確保できるとともに、その際にかかるコストや手間を軽減する。【解決手段】水底地盤Ｇに、下端部にストレーナ部を有する複数のストレーナ管１１と送排気管１４とを埋設し、複数のストレーナ管１１からストレーナ部を介して地中の水を吸引することで地下水位を低下させ、複数のストレーナ管１１の周囲の地中に不飽和ゾーンを形成し、不飽和ゾーンの空気を、送排気管１４を通じて真空吸引することで、複数のストレーナ管１１の周囲の地中に負圧化ゾーンを形成し、その後、当該負圧化ゾーンに送排気管１４を通じて空気を送ることで、水底地盤Ｇ中における無数の土粒子間の間隙に存在する水分に対してキャビテーションを起こさせることにより水分を爆縮させるとともに衝撃波を発生させ、無数の土粒子間の間隙から水分を取り除き、水圧及び大気圧によって水底地盤Ｇを圧密沈下させる。【選択図】図３
CONSOLIDATION SUBSIDENCE METHOD FOR UNDERWATER GROUND
水底地盤の圧密沈下工法
SHIRAKAWA TAKASHI (author) / MIYAMOTO JUNJI (author) / TAKAHASHI MOKICHI (author) / YAMANE TAKAYUKI (author) / HYODO MASAYUKI (author)
2023-09-06
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| TIBKAT | 1989
| TIBKAT | 1977
Large Strain Consolidation Model for Land Subsidence
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