JPS557374A - Sand pit forming device - Google Patents

Sand pit forming device

Info

Publication number
JPS557374A
JPS557374A JP8114478A JP8114478A JPS557374A JP S557374 A JPS557374 A JP S557374A JP 8114478 A JP8114478 A JP 8114478A JP 8114478 A JP8114478 A JP 8114478A JP S557374 A JPS557374 A JP S557374A
Authority
JP
Japan
Prior art keywords
sand surface
weight
sand
tube
hollow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8114478A
Other languages
Japanese (ja)
Other versions
JPS5933740B2 (en
Inventor
Takahiro Kawakami
Akiyoshi Enoki
Yasuhiko Inoue
Yukio Hida
Teruhiro Tsuji
Kimitaka Tanimura
Kanji Mineoka
Hideki Matsumoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fudo Tetra Corp
Original Assignee
Fudo Construction Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fudo Construction Co Ltd filed Critical Fudo Construction Co Ltd
Priority to JP8114478A priority Critical patent/JPS5933740B2/en
Publication of JPS557374A publication Critical patent/JPS557374A/en
Publication of JPS5933740B2 publication Critical patent/JPS5933740B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

PURPOSE: To easily detect a sand surface, by inserting a non-rotation hollow internal tube into a hollow external tube rotated by a driving machine.
CONSTITUTION: After a hollow external tube 1 is inserted into the soft ground as it rotates, sand 18 is charged in a hollow tube 7 from a hopper 10. When a voltage applied to a torque motor 14 is lowered, a weight 15 falls down due to its own weight, and stops falling down after reacing a sand surface 18'. At this time a wire rope 16 is not loosed due to a tension, which is given by the torque motor 14, working on the wire rope 16. As a result of the sand surface 18' lowering, a torque produced by gravity of the weight 15 is applied to a drum 12, and consequently the wire rope 16 is wound down, which results in lowering of the weight 15 following the movement of the sand surface 18'. The sand surface can thus be easily detected because the sand surface at the inside of a non-rotation hollow tube 9 can be detected in such a manner as mentioned above.
COPYRIGHT: (C)1980,JPO&Japio
JP8114478A 1978-06-30 1978-06-30 sand pile creation equipment Expired JPS5933740B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8114478A JPS5933740B2 (en) 1978-06-30 1978-06-30 sand pile creation equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8114478A JPS5933740B2 (en) 1978-06-30 1978-06-30 sand pile creation equipment

Publications (2)

Publication Number Publication Date
JPS557374A true JPS557374A (en) 1980-01-19
JPS5933740B2 JPS5933740B2 (en) 1984-08-17

Family

ID=13738212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8114478A Expired JPS5933740B2 (en) 1978-06-30 1978-06-30 sand pile creation equipment

Country Status (1)

Country Link
JP (1) JPS5933740B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59220523A (en) * 1983-05-30 1984-12-12 Kurimoto Masafumi Method and apparatus for driving sand drain
JPS59220520A (en) * 1983-05-30 1984-12-12 Kurimoto Masafumi Sand pile former
JPS59220524A (en) * 1983-05-30 1984-12-12 Kurimoto Masafumi Sand drain driver

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236046U (en) * 1985-05-13 1987-03-03

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59220523A (en) * 1983-05-30 1984-12-12 Kurimoto Masafumi Method and apparatus for driving sand drain
JPS59220520A (en) * 1983-05-30 1984-12-12 Kurimoto Masafumi Sand pile former
JPS59220524A (en) * 1983-05-30 1984-12-12 Kurimoto Masafumi Sand drain driver

Also Published As

Publication number Publication date
JPS5933740B2 (en) 1984-08-17

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