A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
INRUSH WATER PRESSURE MEASURING DEVICE AND INRUSH WATER PRESSURE MEASURING METHOD
To provide a drilling device with an inrush water pressure measuring device allowing drilling to be quickly resumed after measuring inrush water pressure in front of a working face.SOLUTION: An inrush water pressure measuring device 1 is provided with a drilling rod 2, an annular outer bit 3 fixed on a tip of the drilling rod 2, an inner bit 4 detachably arranged in an inner hollow space of the outer bit 3, a packer device 5 insertable in the inner hollow space of the outer bit 3, and a pressure gauge 6 measuring pressure of inrush water captured from a tip of the packer device 5. The inner bit 4 is detachable out of the outer bit 3 from a rear part thereof, and the packer device 5 is provided with a water intake pipe 51, and a packer member 52 attached in an expandable manner on an outer periphery of a tip of the water intake pipe 51.SELECTED DRAWING: Figure 1
【課題】切羽前方の湧水圧を測定した後、速やかに削孔を再開できる湧水圧測定装置付削孔装置を開発することを目的とする。【解決手段】削孔ロッド２と、削孔ロッド２の先端に固定された環状のアウタービット３と、アウタービット３の内空部に挿脱自在に配置されたインナービット４と、アウタービット３の内空部に挿通可能なパッカー装置５と、パッカー装置５の先端から取り込まれた湧水の圧力を測定する圧力計６と、を備える湧水圧測定装置１であり、インナービット４は、アウタービット３に対して後方から挿脱可能であり、パッカー装置５は、取水管５１と、取水管５１の先端部外周に拡張可能に取り付けられたパッカー材５２と、を備えている。【選択図】図１
INRUSH WATER PRESSURE MEASURING DEVICE AND INRUSH WATER PRESSURE MEASURING METHOD
To provide a drilling device with an inrush water pressure measuring device allowing drilling to be quickly resumed after measuring inrush water pressure in front of a working face.SOLUTION: An inrush water pressure measuring device 1 is provided with a drilling rod 2, an annular outer bit 3 fixed on a tip of the drilling rod 2, an inner bit 4 detachably arranged in an inner hollow space of the outer bit 3, a packer device 5 insertable in the inner hollow space of the outer bit 3, and a pressure gauge 6 measuring pressure of inrush water captured from a tip of the packer device 5. The inner bit 4 is detachable out of the outer bit 3 from a rear part thereof, and the packer device 5 is provided with a water intake pipe 51, and a packer member 52 attached in an expandable manner on an outer periphery of a tip of the water intake pipe 51.SELECTED DRAWING: Figure 1
【課題】切羽前方の湧水圧を測定した後、速やかに削孔を再開できる湧水圧測定装置付削孔装置を開発することを目的とする。【解決手段】削孔ロッド２と、削孔ロッド２の先端に固定された環状のアウタービット３と、アウタービット３の内空部に挿脱自在に配置されたインナービット４と、アウタービット３の内空部に挿通可能なパッカー装置５と、パッカー装置５の先端から取り込まれた湧水の圧力を測定する圧力計６と、を備える湧水圧測定装置１であり、インナービット４は、アウタービット３に対して後方から挿脱可能であり、パッカー装置５は、取水管５１と、取水管５１の先端部外周に拡張可能に取り付けられたパッカー材５２と、を備えている。【選択図】図１
INRUSH WATER PRESSURE MEASURING DEVICE AND INRUSH WATER PRESSURE MEASURING METHOD
湧水圧測定装置および湧水圧測定方法
HIRATSUKA YUSUKE (author) / YAMAMOTO HAJIME (author) / KUMAMOTO SO (author) / MASUOKA KENTARO (author) / KUGA TOSHIMITSU (author) / OKUTSU KENTARO (author)
2021-09-27
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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