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A platform for research: civil engineering, architecture and urbanism
STEEL PIPE PILE WITH SPIRAL BLADE, SOIL CEMENT COMBINATION PILE, AND CREATION METHOD THEREOF
To provide a combination pile having steel pipe pile with a spiral blade, which exhibits a relatively large bearing capacity without increasing the thickness of the spiral blade, and with which pile connection work can be done easily in a short time.SOLUTION: A soil-cement combination pile P is formed by inserting a steel pipe pile with spiral blade 1, which has a steel pipe pile body 10 and one or more spiral blades 20 attached to the steel pipe pile body 10, into a soil-cement pile 2 created in ground G. The steel pipe pile body 10 is formed by connecting two or more steel pipe members 11 with a mechanical joint 30. The mechanical joint 30 has a protrusion 34 protruding outward in diameter direction with a dimension R of 10 mm or more and 30 mm or less from the surface of the steel pipe pile body 10 over 80% or more of the outer circumference. The dimension A of the protrusion 34 of the mechanical joint 30 in the pile axis direction is set to 50 mm or more and 200 mm or less.SELECTED DRAWING: Figure 4
【課題】杭接続作業を短時間で容易に行うことができ、かつ、螺旋状羽根の厚さを厚くすることなく比較的大きい支持力を発現させることができる螺旋状羽根付鋼管杭を備えた合成杭を提供する。【解決手段】ソイルセメント合成杭Ｐは、鋼管杭本体１０と鋼管杭本体１０に取り付けられた一つ以上の螺旋状羽根２０とを有する螺旋状羽根付鋼管杭１を、地盤Ｇ中に造成されるソイルセメント柱体２に挿入して形成したものである。２本以上の鋼管部材１１を機械式継手３０により接続して鋼管杭本体１０を形成する。機械式継手３０は、外周の８割以上にわたって鋼管杭本体１０の表面から１０ｍｍ以上３０ｍｍ以下の寸法Ｒで径方向外側に突出する突出部３４を有している。機械式継手３０の突出部３４の杭軸方向における寸法Ａを５０ｍｍ以上２００ｍｍ以下に設定する。【選択図】図４
STEEL PIPE PILE WITH SPIRAL BLADE, SOIL CEMENT COMBINATION PILE, AND CREATION METHOD THEREOF
To provide a combination pile having steel pipe pile with a spiral blade, which exhibits a relatively large bearing capacity without increasing the thickness of the spiral blade, and with which pile connection work can be done easily in a short time.SOLUTION: A soil-cement combination pile P is formed by inserting a steel pipe pile with spiral blade 1, which has a steel pipe pile body 10 and one or more spiral blades 20 attached to the steel pipe pile body 10, into a soil-cement pile 2 created in ground G. The steel pipe pile body 10 is formed by connecting two or more steel pipe members 11 with a mechanical joint 30. The mechanical joint 30 has a protrusion 34 protruding outward in diameter direction with a dimension R of 10 mm or more and 30 mm or less from the surface of the steel pipe pile body 10 over 80% or more of the outer circumference. The dimension A of the protrusion 34 of the mechanical joint 30 in the pile axis direction is set to 50 mm or more and 200 mm or less.SELECTED DRAWING: Figure 4
【課題】杭接続作業を短時間で容易に行うことができ、かつ、螺旋状羽根の厚さを厚くすることなく比較的大きい支持力を発現させることができる螺旋状羽根付鋼管杭を備えた合成杭を提供する。【解決手段】ソイルセメント合成杭Ｐは、鋼管杭本体１０と鋼管杭本体１０に取り付けられた一つ以上の螺旋状羽根２０とを有する螺旋状羽根付鋼管杭１を、地盤Ｇ中に造成されるソイルセメント柱体２に挿入して形成したものである。２本以上の鋼管部材１１を機械式継手３０により接続して鋼管杭本体１０を形成する。機械式継手３０は、外周の８割以上にわたって鋼管杭本体１０の表面から１０ｍｍ以上３０ｍｍ以下の寸法Ｒで径方向外側に突出する突出部３４を有している。機械式継手３０の突出部３４の杭軸方向における寸法Ａを５０ｍｍ以上２００ｍｍ以下に設定する。【選択図】図４
STEEL PIPE PILE WITH SPIRAL BLADE, SOIL CEMENT COMBINATION PILE, AND CREATION METHOD THEREOF
螺旋状羽根付鋼管杭、ソイルセメント合成杭及びその造成方法
SHIGEMATSU HIDEKAZU (author)
2021-04-15
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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