A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
UNDERGROUND WATER OBSERVATION DEVICE AND UNDERGROUND WATER OBSERVATION METHOD
To provide an underground water observation device and an underground water observation method capable of simultaneously performing pressure observation and underground water sampling in one borehole.SOLUTION: An underground water observation device comprises: a casing pipe 12 which is inserted into and arranged in a borehole 10; a plurality of water-blocking packers 14 which are arranged around the casing pipe 12 vertically at an interval; a pressure gauge 18 which is provided outside the casing pipe 12 in order to measure water pressure of underground water in the section defined with the packers 14; and an optical fiber cable 16 which is arranged along between a borehole wall 10A and the casing pipe 12 in order to transmit light for pressure detection of the pressure gauge 18.SELECTED DRAWING: Figure 1
【課題】１本のボーリング孔において圧力観測と地下水採取を同時に行うことができる地下水観測装置および地下水観測方法を提供する。【解決手段】ボーリング孔１０に挿入配置されるケーシングパイプ１２と、ケーシングパイプ１２の周囲に対して上下方向に間隔をあけて複数配置される遮水用のパッカー１４と、パッカー１４により区切られた区間の地下水の水圧を計測するためにケーシングパイプ１２の外側に設けられた圧力計１８と、圧力計１８における圧力検出のための光を伝送するためにボーリング孔壁１０Ａとケーシングパイプ１２の間に沿って配置される光ファイバケーブル１６とを備えるようにする。【選択図】図１
UNDERGROUND WATER OBSERVATION DEVICE AND UNDERGROUND WATER OBSERVATION METHOD
To provide an underground water observation device and an underground water observation method capable of simultaneously performing pressure observation and underground water sampling in one borehole.SOLUTION: An underground water observation device comprises: a casing pipe 12 which is inserted into and arranged in a borehole 10; a plurality of water-blocking packers 14 which are arranged around the casing pipe 12 vertically at an interval; a pressure gauge 18 which is provided outside the casing pipe 12 in order to measure water pressure of underground water in the section defined with the packers 14; and an optical fiber cable 16 which is arranged along between a borehole wall 10A and the casing pipe 12 in order to transmit light for pressure detection of the pressure gauge 18.SELECTED DRAWING: Figure 1
【課題】１本のボーリング孔において圧力観測と地下水採取を同時に行うことができる地下水観測装置および地下水観測方法を提供する。【解決手段】ボーリング孔１０に挿入配置されるケーシングパイプ１２と、ケーシングパイプ１２の周囲に対して上下方向に間隔をあけて複数配置される遮水用のパッカー１４と、パッカー１４により区切られた区間の地下水の水圧を計測するためにケーシングパイプ１２の外側に設けられた圧力計１８と、圧力計１８における圧力検出のための光を伝送するためにボーリング孔壁１０Ａとケーシングパイプ１２の間に沿って配置される光ファイバケーブル１６とを備えるようにする。【選択図】図１
UNDERGROUND WATER OBSERVATION DEVICE AND UNDERGROUND WATER OBSERVATION METHOD
地下水観測装置および地下水観測方法
HOKARI TOSHIYUKI (author) / OKIHARA MITSUNOBU (author) / NAKAJIMA HITOSHI (author)
2021-11-25
Patent
Electronic Resource
Japanese
IPC:
G01V
Geophysik
,
GEOPHYSICS
/
E02D
FOUNDATIONS
,
Gründungen
/
G01L
Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden
,
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
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