A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To solve the problems of being not economical in cost and being unable to provide a uniform water level drop, due to requiring to install many of the construction number in a conventional Dave well from an element such as a stratification state, a water permeability coefficient and the water content of the ground, when uniformly dropping an underground water level of the wide area up to a deep part.MEANS FOR SOLVING THE PROBLEM: Means is provided for solving the problem by simultaneously using a vertical drain method when the object ground is a uniform and thick stratum or is the mutual layer ground (a sand layer or silt and a clay layer) or by means for forcedly flattening a water conduit slope by horizontally planarly or cross-sectionally installing this method in a multistage shape on the ground large in a water staying quantity of the mutual layer ground.SELECTED DRAWING: Figure 1
【課題】広い面積の地下水位を深部迄均等に降下させるには地盤の成層状態、透水係数、含水量等の要素から在来までのデープウェルでは施工本数を多く設置する必要がありコスト的にも経済的でなく均等な水位降下が得られない課題があった、【課題を解決する手段】対象地盤が均一で厚い地層の場合又は互層地盤（砂層又はシルト、粘土層）の場合バーチカルドレーン工法併用又は互層地盤の滞水量の大きい地盤に水平に本工法を平面的、又は断面的に多段的に設置し強制的に導水勾配をフラット化する手段にり課題を解決する手段とした。【選択図】図１
PROBLEM TO BE SOLVED: To solve the problems of being not economical in cost and being unable to provide a uniform water level drop, due to requiring to install many of the construction number in a conventional Dave well from an element such as a stratification state, a water permeability coefficient and the water content of the ground, when uniformly dropping an underground water level of the wide area up to a deep part.MEANS FOR SOLVING THE PROBLEM: Means is provided for solving the problem by simultaneously using a vertical drain method when the object ground is a uniform and thick stratum or is the mutual layer ground (a sand layer or silt and a clay layer) or by means for forcedly flattening a water conduit slope by horizontally planarly or cross-sectionally installing this method in a multistage shape on the ground large in a water staying quantity of the mutual layer ground.SELECTED DRAWING: Figure 1
【課題】広い面積の地下水位を深部迄均等に降下させるには地盤の成層状態、透水係数、含水量等の要素から在来までのデープウェルでは施工本数を多く設置する必要がありコスト的にも経済的でなく均等な水位降下が得られない課題があった、【課題を解決する手段】対象地盤が均一で厚い地層の場合又は互層地盤（砂層又はシルト、粘土層）の場合バーチカルドレーン工法併用又は互層地盤の滞水量の大きい地盤に水平に本工法を平面的、又は断面的に多段的に設置し強制的に導水勾配をフラット化する手段にり課題を解決する手段とした。【選択図】図１
HORIZONTAL DAVE VACUUM METHOD
ホリゾンタルデープバキュウーム工法
ISHII KAZUE (author)
2017-09-14
Patent
Electronic Resource
Japanese
IPC:
E02D
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