A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
STEEL PIPE SHEET PILE WELL FOUNDATION CONSTRUCTION METHOD
To provide a steel pipe sheet pile well foundation construction method which can efficiently and inexpensively prevent a heave of an excavation bottom surface and floating of the whole well, even when an uplift pressure by artesian ground water of the ground is increased.SOLUTION: A steel pipe sheet pile well foundation construction method reinforces bottom plate concrete 21 in a well 10 formed by installing a large number of steel pipe sheet piles 11 into a ground G0 by burying a reinforcement assembly and is supported by a large number of studs extending and fastened to the inside of the concrete and from the steel pipe sheet piles by its whole side face, pumps underground water from the ground by each pump 71 of a plurality of deep wells 34 and lowers an uplift pressure of the ground, automatically controls each of the pumps on the basis of a water level detection result by each water level sensor 72, and automatically adjusts a pumping quantity by each of the pumps from each deep well, from at latest a start timing of an excavation step in the well.SELECTED DRAWING: Figure 2
【課題】地盤の被圧地下水による揚圧力が高くなっても、掘削底面の盤ぶくれおよび井筒全体の浮き上がりを効率的にかつ低コストで防止可能な鋼管矢板井筒基礎構築方法を提供する。【解決手段】この鋼管矢板井筒基礎構築方法は、多数の鋼管矢板１１を地盤Ｇ０に打設して形成される井筒１０内の底盤コンクリート２１が鉄筋組立体の埋め込みで補強されかつその側面全体で鋼管矢板からコンクリート内部へ延びて固着した多数本のスタッドにより支持され、遅くとも井筒内の掘削工程の開始時期から、複数のディープウェル３４の各ポンプ７１により地盤内から地下水を揚水して地盤の揚圧力を低下させかつ各水位センサ７２による水位検知結果に基づいて各ポンプを自動制御して各ポンプによる揚水量をディープウェル毎に自動調整する。【選択図】図２
STEEL PIPE SHEET PILE WELL FOUNDATION CONSTRUCTION METHOD
To provide a steel pipe sheet pile well foundation construction method which can efficiently and inexpensively prevent a heave of an excavation bottom surface and floating of the whole well, even when an uplift pressure by artesian ground water of the ground is increased.SOLUTION: A steel pipe sheet pile well foundation construction method reinforces bottom plate concrete 21 in a well 10 formed by installing a large number of steel pipe sheet piles 11 into a ground G0 by burying a reinforcement assembly and is supported by a large number of studs extending and fastened to the inside of the concrete and from the steel pipe sheet piles by its whole side face, pumps underground water from the ground by each pump 71 of a plurality of deep wells 34 and lowers an uplift pressure of the ground, automatically controls each of the pumps on the basis of a water level detection result by each water level sensor 72, and automatically adjusts a pumping quantity by each of the pumps from each deep well, from at latest a start timing of an excavation step in the well.SELECTED DRAWING: Figure 2
【課題】地盤の被圧地下水による揚圧力が高くなっても、掘削底面の盤ぶくれおよび井筒全体の浮き上がりを効率的にかつ低コストで防止可能な鋼管矢板井筒基礎構築方法を提供する。【解決手段】この鋼管矢板井筒基礎構築方法は、多数の鋼管矢板１１を地盤Ｇ０に打設して形成される井筒１０内の底盤コンクリート２１が鉄筋組立体の埋め込みで補強されかつその側面全体で鋼管矢板からコンクリート内部へ延びて固着した多数本のスタッドにより支持され、遅くとも井筒内の掘削工程の開始時期から、複数のディープウェル３４の各ポンプ７１により地盤内から地下水を揚水して地盤の揚圧力を低下させかつ各水位センサ７２による水位検知結果に基づいて各ポンプを自動制御して各ポンプによる揚水量をディープウェル毎に自動調整する。【選択図】図２
STEEL PIPE SHEET PILE WELL FOUNDATION CONSTRUCTION METHOD
鋼管矢板井筒基礎構築方法
UEDA TAKUYA (author) / YOROZUYA KEITA (author) / TAMAI TATSUYA (author) / SANO TSUNEYUKI (author) / KAWASAKI MITSUHIRO (author) / ENDO YUKIO (author) / MIYAUCHI RIKU (author)
2023-06-22
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2018
CONSTRUCTION METHOD OF STEEL PIPE SHEET PILE WELL FOUNDATION
| European Patent Office | 2019
| European Patent Office | 2016