JPS5744022A - Hydraulic lifting, dead weight drop system pile driving device - Google Patents

Hydraulic lifting, dead weight drop system pile driving device

Info

Publication number
JPS5744022A
JPS5744022A JP11780880A JP11780880A JPS5744022A JP S5744022 A JPS5744022 A JP S5744022A JP 11780880 A JP11780880 A JP 11780880A JP 11780880 A JP11780880 A JP 11780880A JP S5744022 A JPS5744022 A JP S5744022A
Authority
JP
Japan
Prior art keywords
weight
hydraulic
dead weight
switch valve
pile
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
JP11780880A
Other languages
Japanese (ja)
Other versions
JPS6116812B2 (en
Inventor
Yoshio Tanaka
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.)
JIYOUBAN KISO KK
Hazama Corp
Original Assignee
JIYOUBAN KISO KK
Hazama Gumi 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 JIYOUBAN KISO KK, Hazama Gumi Ltd filed Critical JIYOUBAN KISO KK
Priority to JP11780880A priority Critical patent/JPS5744022A/en
Publication of JPS5744022A publication Critical patent/JPS5744022A/en
Publication of JPS6116812B2 publication Critical patent/JPS6116812B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

PURPOSE: To enable a hydraulic device to be miniaturized more than a hydraulic forced system and to reduce the generation of noise at an operating time, by a method wherein, after a weight is lifted by a hydraulic means, it is dropped under its own weight, and this causes striking of a pile head, which results in driving-in of the pile.
CONSTITUTION: Through the drive of a hydraulic pump 27 and the operation of a 2-way switch valve 22, pressurized oil is pressed in between a piston 16 and a cylinder 7, and as a result, a weight 6 is raised with the upward movement of the cylinder 7. When the weight 6 reaches an upper limit, an oil feed and discharge pipe 18 is caused to be open to a line 24 with the 2-way switch valve 22 actuated, and as a result, the weight 6 drops with its dead weight to strike an iron bed 12 to press in a pile head 35 engaging said iron bed 12. The rise in pressure of return oil at a time when the weight 6 drops through the dead weight is relieved by means of an oil amount control tank 20. After dead weight dropping of the weight 6 is completed, the 2-way switch valve 22 is changed over, the device is further restored to an initial operation condition, and operations to drive the pile are performed in a repeated manner.
COPYRIGHT: (C)1982,JPO&Japio
JP11780880A 1980-08-28 1980-08-28 Hydraulic lifting, dead weight drop system pile driving device Granted JPS5744022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11780880A JPS5744022A (en) 1980-08-28 1980-08-28 Hydraulic lifting, dead weight drop system pile driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11780880A JPS5744022A (en) 1980-08-28 1980-08-28 Hydraulic lifting, dead weight drop system pile driving device

Publications (2)

Publication Number Publication Date
JPS5744022A true JPS5744022A (en) 1982-03-12
JPS6116812B2 JPS6116812B2 (en) 1986-05-02

Family

ID=14720774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11780880A Granted JPS5744022A (en) 1980-08-28 1980-08-28 Hydraulic lifting, dead weight drop system pile driving device

Country Status (1)

Country Link
JP (1) JPS5744022A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5106782A (en) * 1988-07-15 1992-04-21 Kabushiki Kaisha Toshiba Method of manufacturing a semiconductor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5106782A (en) * 1988-07-15 1992-04-21 Kabushiki Kaisha Toshiba Method of manufacturing a semiconductor device

Also Published As

Publication number Publication date
JPS6116812B2 (en) 1986-05-02

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