A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND IMPROVEMENT DEVICE, GROUND IMPROVEMENT METHOD, CASING PIPE, EXCAVATION DEVICE
PROBLEM TO BE SOLVED: To provide a ground improvement method that minimizes wasted work to an extent possible and may be implemented without leaving an unimproved section.SOLUTION: A ground improvement method includes the following steps for: erecting a rectangular casing on a ground, the casing being installed to be lifted and lowered freely; excavating the ground underneath the rectangular casing so that the casing penetrates into the ground as excavation progresses; discharging sediment from the excavation outside of the rectangular casing; injecting a ground improvement material into the ground through the inside of the casing, when a lower edge of the casing reaches a targeted depth; and compacting the ground improvement material injected into the ground. In the ground improvement work, the ground to be improved is divided into a plurality of square areas in a grid form, and the steps are implemented for each of the square areas for improving the ground.SELECTED DRAWING: Figure 3
【課題】施工無駄を可能な限り少なくでき、未改良部分を残すことなく施工することを可能にする地盤改良工法を提供する。【解決手段】上げ下げ自在に設けられた矩形ケーシングを地盤上に立設する工程と、掘削の進行に伴って矩形ケーシングが地盤内に貫入するように、ケーシング下方の地盤を掘削する工程と、掘削に伴って生じた土砂を矩形ケーシングの外部に排出する工程と、ケーシング下端が目標深度に達した状態で、地盤改良材をケーシング内側を通じて地盤内に投入する工程と、地盤内に投入された地盤改良材を締固める工程を含んでいる。施工にあたっては、改良対象地盤を格子状の複数のマス目領域に区画し、各マス目領域ごとに各工程を実施して対象地盤を改良する。【選択図】図３
GROUND IMPROVEMENT DEVICE, GROUND IMPROVEMENT METHOD, CASING PIPE, EXCAVATION DEVICE
PROBLEM TO BE SOLVED: To provide a ground improvement method that minimizes wasted work to an extent possible and may be implemented without leaving an unimproved section.SOLUTION: A ground improvement method includes the following steps for: erecting a rectangular casing on a ground, the casing being installed to be lifted and lowered freely; excavating the ground underneath the rectangular casing so that the casing penetrates into the ground as excavation progresses; discharging sediment from the excavation outside of the rectangular casing; injecting a ground improvement material into the ground through the inside of the casing, when a lower edge of the casing reaches a targeted depth; and compacting the ground improvement material injected into the ground. In the ground improvement work, the ground to be improved is divided into a plurality of square areas in a grid form, and the steps are implemented for each of the square areas for improving the ground.SELECTED DRAWING: Figure 3
【課題】施工無駄を可能な限り少なくでき、未改良部分を残すことなく施工することを可能にする地盤改良工法を提供する。【解決手段】上げ下げ自在に設けられた矩形ケーシングを地盤上に立設する工程と、掘削の進行に伴って矩形ケーシングが地盤内に貫入するように、ケーシング下方の地盤を掘削する工程と、掘削に伴って生じた土砂を矩形ケーシングの外部に排出する工程と、ケーシング下端が目標深度に達した状態で、地盤改良材をケーシング内側を通じて地盤内に投入する工程と、地盤内に投入された地盤改良材を締固める工程を含んでいる。施工にあたっては、改良対象地盤を格子状の複数のマス目領域に区画し、各マス目領域ごとに各工程を実施して対象地盤を改良する。【選択図】図３
GROUND IMPROVEMENT DEVICE, GROUND IMPROVEMENT METHOD, CASING PIPE, EXCAVATION DEVICE
地盤改良装置、地盤改良工法、ケーシングパイプ、掘削装置
YAMAMOTO YOSHITOMO (author)
2016-11-10
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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