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A platform for research: civil engineering, architecture and urbanism
SUBSOIL REINFORCING METHOD AND STEEL PIPE FOR REINFORCING SUBSOIL
PROBLEM TO BE SOLVED: To provide a simpler subsoil reinforcing method and a steel pipe for reinforcing subsoil used in the method which can obtain higher subsoil compaction effect compared with a case of driving a normal steel pipe or a tapered steel pipe and which can suppress construction cost and working labor of restricting fluid injection.SOLUTION: The subsoil reinforcing method using a steel pipe 100 comprises: driving the steel pipe 100 into an underground; inserting a diameter enlarging member 110 at least a part of which has an outer diameter larger than an inner diameter of the steel pipe 100, from either one or the other end portion of the steel pipe 100 into the steel pipe 100; and moving the diameter enlarging member 110 in the pipe axial direction in the steel pipe 100. Thus, parts of the steel pipe 100 through which the diameter enlarging member 110 passes are continuously enlarged in the diameter.SELECTED DRAWING: Figure 7
【課題】通常の鋼管やテーパ状の鋼管を打ち込む場合と比較して高い地盤の締め固め効果が得られ、かつ、施工コストや流体注入の制御の手間を抑制できる、より簡便な地盤補強工法、および当該工法で使用される地盤補強用鋼管を提供する。【解決手段】鋼管１００を使用した地盤補強工法において、鋼管１００を地中に打ち込んだ後、少なくとも一部が鋼管１００の内径よりも大きな外径を有する拡径部材１１０を鋼管１００のいずれか一方の端部から鋼管１００内に挿入し、鋼管１００内で拡径部材１１０を管軸方向に移動させることで、鋼管１００のうち拡径部材１１０が通過した部分を連続的に拡径するようにした。【選択図】図７
SUBSOIL REINFORCING METHOD AND STEEL PIPE FOR REINFORCING SUBSOIL
PROBLEM TO BE SOLVED: To provide a simpler subsoil reinforcing method and a steel pipe for reinforcing subsoil used in the method which can obtain higher subsoil compaction effect compared with a case of driving a normal steel pipe or a tapered steel pipe and which can suppress construction cost and working labor of restricting fluid injection.SOLUTION: The subsoil reinforcing method using a steel pipe 100 comprises: driving the steel pipe 100 into an underground; inserting a diameter enlarging member 110 at least a part of which has an outer diameter larger than an inner diameter of the steel pipe 100, from either one or the other end portion of the steel pipe 100 into the steel pipe 100; and moving the diameter enlarging member 110 in the pipe axial direction in the steel pipe 100. Thus, parts of the steel pipe 100 through which the diameter enlarging member 110 passes are continuously enlarged in the diameter.SELECTED DRAWING: Figure 7
【課題】通常の鋼管やテーパ状の鋼管を打ち込む場合と比較して高い地盤の締め固め効果が得られ、かつ、施工コストや流体注入の制御の手間を抑制できる、より簡便な地盤補強工法、および当該工法で使用される地盤補強用鋼管を提供する。【解決手段】鋼管１００を使用した地盤補強工法において、鋼管１００を地中に打ち込んだ後、少なくとも一部が鋼管１００の内径よりも大きな外径を有する拡径部材１１０を鋼管１００のいずれか一方の端部から鋼管１００内に挿入し、鋼管１００内で拡径部材１１０を管軸方向に移動させることで、鋼管１００のうち拡径部材１１０が通過した部分を連続的に拡径するようにした。【選択図】図７
SUBSOIL REINFORCING METHOD AND STEEL PIPE FOR REINFORCING SUBSOIL
地盤補強工法および地盤補強用鋼管
AGATA ATSUSHI (author) / ISHIHAMA YOSHIRO (author)
2018-11-08
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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