A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND SAMPLING DEVICE
PROBLEM TO BE SOLVED: To provide a ground sampling device capable of executing switching work of a supply passage of a working fluid in drilling work and a supply passage of the working fluid for propelling a sampling tube, in a short time, without requiring to replace the supply passage of the working fluid.SOLUTION: A ground sampling device is constituted of a cylindrical rod 5 for supplying a working fluid by a supply device by imparting rotation and the propulsion action by a boring device, a sample tube 3 installed in a tip part of the rod via a slidingly moving switching valve 20, a piston 16 positioned in a tip part in drilling time, a drilling tool 15 installed in its tip part, a circular ring key weight 24 for switching the switching valve, a rod and a working fluid switching passage 22 formed so that fluid in the sample tube can be discharged to an external part, by switching the switching valve 20, by falling by installing a circular ring key weight on the rod when drilling a hole up to the predetermined depth by drilling by discharging the working fluid in the drilling time.
【課題】掘削作業時の作動流体の供給経路とサンプリングチューブを推進させるための作動流体の供給経路の切り替え作業を、作動流体の供給経路の取り替え不要で、短時間で行なうことができる地盤試料採取装置を提供する。【解決手段】ボーリング装置によって回転と推進作用が付与され、作動流体が供給装置で供給される筒状のロッド５と、ロッドの先端部に、スライド移動する切り替え弁２０を介して取付けられたサンプルチューブ３と、掘削時に先端部に位置するピストン１６と、その先端部に取付けられた掘削治具１５と、切り替え弁を切り替える円環キイウエイト２４と、ロッドと、掘削時には作動流体を吐出して掘削し、所定の深度まで削孔すると、ロッドに円環キイウエイトを取付けて落下させて、切り替え弁２０を切り替えてサンプルチューブ内の流体を外部へ排出できるように形成した作動流体切り替え通路２２とで地盤試料採取装置を構成する。【選択図】図５
GROUND SAMPLING DEVICE
PROBLEM TO BE SOLVED: To provide a ground sampling device capable of executing switching work of a supply passage of a working fluid in drilling work and a supply passage of the working fluid for propelling a sampling tube, in a short time, without requiring to replace the supply passage of the working fluid.SOLUTION: A ground sampling device is constituted of a cylindrical rod 5 for supplying a working fluid by a supply device by imparting rotation and the propulsion action by a boring device, a sample tube 3 installed in a tip part of the rod via a slidingly moving switching valve 20, a piston 16 positioned in a tip part in drilling time, a drilling tool 15 installed in its tip part, a circular ring key weight 24 for switching the switching valve, a rod and a working fluid switching passage 22 formed so that fluid in the sample tube can be discharged to an external part, by switching the switching valve 20, by falling by installing a circular ring key weight on the rod when drilling a hole up to the predetermined depth by drilling by discharging the working fluid in the drilling time.
【課題】掘削作業時の作動流体の供給経路とサンプリングチューブを推進させるための作動流体の供給経路の切り替え作業を、作動流体の供給経路の取り替え不要で、短時間で行なうことができる地盤試料採取装置を提供する。【解決手段】ボーリング装置によって回転と推進作用が付与され、作動流体が供給装置で供給される筒状のロッド５と、ロッドの先端部に、スライド移動する切り替え弁２０を介して取付けられたサンプルチューブ３と、掘削時に先端部に位置するピストン１６と、その先端部に取付けられた掘削治具１５と、切り替え弁を切り替える円環キイウエイト２４と、ロッドと、掘削時には作動流体を吐出して掘削し、所定の深度まで削孔すると、ロッドに円環キイウエイトを取付けて落下させて、切り替え弁２０を切り替えてサンプルチューブ内の流体を外部へ排出できるように形成した作動流体切り替え通路２２とで地盤試料採取装置を構成する。【選択図】図５
GROUND SAMPLING DEVICE
地盤試料採取装置
SAKAI KAZUO (author) / TACHIKAWA HIDEO (author) / YUGAWA HIRONORI (author) / OKUZAWA TAIZO (author)
2015-11-02
Patent
Electronic Resource
Japanese
GROUND SAMPLE SAMPLING METHOD, AND GROUND SAMPLE SAMPLING DEVICE
| European Patent Office | 2021