A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PACKER AND CONSTRUCTION METHOD USING THE PACKER
To provide a packer capable of easily and accurately detecting whether an injection material leaks to an upper part of a packer, and a method of using such a packer in a method of injecting the injection material in order from an upper region to a lower region (so-called "stage grout method").SOLUTION: In a packer (1) of the present invention, an injection material detector (2) is mounted on the ground side, the injection material detector (2) comprises a housing (2A), the housing (2A) is connected to (for example, two) optical signal transmission systems (2B1, 2B2: for example, glass fiber), an injection material entry opening (2AA) is formed in the housing (2A), and an area inside the housing of the injection material entry opening 2AA is located between the ends of the (for example, two) transmission systems (2B1, 2B2).SELECTED DRAWING: Figure 1
【課題】上方の領域から下方の領域の順に注入材を注入する工法（いわゆる「ステージグラウト工法」）において、注入材がパッカー上部にリークしているか否かを容易に且つ正確に検知することが出来るパッカーと、その様なパッカーを用いた工法の提供。【解決手段】本発明のパッカー（１）は、地上側に注入材検出器（２）が取り付けられ、前記注入材検出器（２）はハウジング（２Ａ）を備え、ハウジング（２Ａ）は（例えば２本の）光信号の伝達系統（２Ｂ１、２Ｂ２：例えばグラスファイバー）と接続されており、ハウジング（２Ａ）には注入材侵入用開口部（２ＡＡ）が形成されており、注入材侵入用開口部２ＡＡのハウジング内方の領域は（例えば２本の）前記伝達系統（２Ｂ１、２Ｂ２）の端部の間に位置している。【選択図】図１
PACKER AND CONSTRUCTION METHOD USING THE PACKER
To provide a packer capable of easily and accurately detecting whether an injection material leaks to an upper part of a packer, and a method of using such a packer in a method of injecting the injection material in order from an upper region to a lower region (so-called "stage grout method").SOLUTION: In a packer (1) of the present invention, an injection material detector (2) is mounted on the ground side, the injection material detector (2) comprises a housing (2A), the housing (2A) is connected to (for example, two) optical signal transmission systems (2B1, 2B2: for example, glass fiber), an injection material entry opening (2AA) is formed in the housing (2A), and an area inside the housing of the injection material entry opening 2AA is located between the ends of the (for example, two) transmission systems (2B1, 2B2).SELECTED DRAWING: Figure 1
【課題】上方の領域から下方の領域の順に注入材を注入する工法（いわゆる「ステージグラウト工法」）において、注入材がパッカー上部にリークしているか否かを容易に且つ正確に検知することが出来るパッカーと、その様なパッカーを用いた工法の提供。【解決手段】本発明のパッカー（１）は、地上側に注入材検出器（２）が取り付けられ、前記注入材検出器（２）はハウジング（２Ａ）を備え、ハウジング（２Ａ）は（例えば２本の）光信号の伝達系統（２Ｂ１、２Ｂ２：例えばグラスファイバー）と接続されており、ハウジング（２Ａ）には注入材侵入用開口部（２ＡＡ）が形成されており、注入材侵入用開口部２ＡＡのハウジング内方の領域は（例えば２本の）前記伝達系統（２Ｂ１、２Ｂ２）の端部の間に位置している。【選択図】図１
PACKER AND CONSTRUCTION METHOD USING THE PACKER
パッカー及び当該パッカーを用いる工法
OTAKI MASAYOSHI (author) / TOMOE NAOTO (author) / ABE HIDEKI (author) / NAKAJIMA MASAKAZU (author)
2020-03-05
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen