A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD OF DRIVING PILE TO BEDROCK
PROBLEM TO BE SOLVED: To provide a method of driving a pile to a bedrock capable of stably securing the pile driven to the bedrock in a prolonged period by the rock pile driving method.SOLUTION: A pile 2 has thick projection parts 2a projecting to an outer peripheral side more than other portions on an outer peripheral surface of a tip of the pile 2 and is provided with convex parts 2b whose projection volume from the outer peripheral surface is equal to or less than the maximum volume of the projection parts 2a at least on a surface of the outer peripheral surface of the tip of the pile 2 other than the projection parts 2a. A method comprises: driving the pile 2 to a bedrock R to a predetermined depth while removing fractured rocks Rc from a tip area of the pile 2 with water W injected from a tip nozzle 4a while fracturing the bedrock R by striking the bedrock R with the tip of the pile 2 using a vibrating pile driver 1; filling cement milk C in a gap g between the pile 2 and the bedrock R; and securing the pile 2 to the bedrock R through the solidified cement milk C.SELECTED DRAWING: Figure 2
【課題】ガンパイル工法により岩盤に打設された杭を、長期に渡り安定的に岩盤に固定することができる岩盤への杭打設工法を提供する。【解決手段】杭２の先端部の外周面が他の部位よりも外周側に突出した厚肉の突出部２ａを有するとともに、突出部２ａ以外の杭２の少なくとも先端側の外周面の表面にその外周面からの突出量が突出部２ａの最大突出量以下の凸部２ｂが設けられていて、振動杭打設機１によりこの杭２の先端を岩盤Ｒに打ち付けて岩盤Ｒを破砕しつつ、破砕した岩石Ｒｃを、先端ノズル４ａから噴射する水Ｗで杭２の先端領域から排除しながら、杭２を岩盤Ｒに所定深さ打込み、次いで、杭２と岩盤Ｒとのすき間ｇにセメントミルクＣを充填し、固化したセメントミルクＣを介して杭２を岩盤Ｒに固定させる。【選択図】図２
METHOD OF DRIVING PILE TO BEDROCK
PROBLEM TO BE SOLVED: To provide a method of driving a pile to a bedrock capable of stably securing the pile driven to the bedrock in a prolonged period by the rock pile driving method.SOLUTION: A pile 2 has thick projection parts 2a projecting to an outer peripheral side more than other portions on an outer peripheral surface of a tip of the pile 2 and is provided with convex parts 2b whose projection volume from the outer peripheral surface is equal to or less than the maximum volume of the projection parts 2a at least on a surface of the outer peripheral surface of the tip of the pile 2 other than the projection parts 2a. A method comprises: driving the pile 2 to a bedrock R to a predetermined depth while removing fractured rocks Rc from a tip area of the pile 2 with water W injected from a tip nozzle 4a while fracturing the bedrock R by striking the bedrock R with the tip of the pile 2 using a vibrating pile driver 1; filling cement milk C in a gap g between the pile 2 and the bedrock R; and securing the pile 2 to the bedrock R through the solidified cement milk C.SELECTED DRAWING: Figure 2
【課題】ガンパイル工法により岩盤に打設された杭を、長期に渡り安定的に岩盤に固定することができる岩盤への杭打設工法を提供する。【解決手段】杭２の先端部の外周面が他の部位よりも外周側に突出した厚肉の突出部２ａを有するとともに、突出部２ａ以外の杭２の少なくとも先端側の外周面の表面にその外周面からの突出量が突出部２ａの最大突出量以下の凸部２ｂが設けられていて、振動杭打設機１によりこの杭２の先端を岩盤Ｒに打ち付けて岩盤Ｒを破砕しつつ、破砕した岩石Ｒｃを、先端ノズル４ａから噴射する水Ｗで杭２の先端領域から排除しながら、杭２を岩盤Ｒに所定深さ打込み、次いで、杭２と岩盤Ｒとのすき間ｇにセメントミルクＣを充填し、固化したセメントミルクＣを介して杭２を岩盤Ｒに固定させる。【選択図】図２
METHOD OF DRIVING PILE TO BEDROCK
岩盤への杭打設工法
TAGUCHI HIROBUMI (author) / SHIMADA YOICHI (author) / INAZUMI KAZUKUNI (author) / TATSUMI YUICHI (author) / NAKAJIMA MICHIHIRO (author)
2018-11-15
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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