JPS5771940A - Cutter water jet pump dredging work - Google Patents

Cutter water jet pump dredging work

Info

Publication number
JPS5771940A
JPS5771940A JP14764280A JP14764280A JPS5771940A JP S5771940 A JPS5771940 A JP S5771940A JP 14764280 A JP14764280 A JP 14764280A JP 14764280 A JP14764280 A JP 14764280A JP S5771940 A JPS5771940 A JP S5771940A
Authority
JP
Japan
Prior art keywords
water
water jet
jet pump
suction port
cutter
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.)
Pending
Application number
JP14764280A
Other languages
Japanese (ja)
Inventor
Shigeo Takamura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP14764280A priority Critical patent/JPS5771940A/en
Publication of JPS5771940A publication Critical patent/JPS5771940A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To raise the suction force of soil and sand as well as increase the depth of excavation by providing a jet nozzle to a suction port attached to the tip of a ladder.
CONSTITUTION: A rotary 1 at the tip of the ladder 5 of a cutter pump ship is turned by an oil-pressure pipe 10, an oil-pressure motor 4, and a shaft 9. Water is jetted toward the suction port 7 through a high-pressure pipe 8 and a water jet nozzle 6 by a water jet pump. Soil and sand on the bottom under water are excavated by the rotary cutter 1 and then sucked forcibly into the suction port 7 by means of the jet stream of water and sent out.
COPYRIGHT: (C)1982,JPO&Japio
JP14764280A 1980-10-23 1980-10-23 Cutter water jet pump dredging work Pending JPS5771940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14764280A JPS5771940A (en) 1980-10-23 1980-10-23 Cutter water jet pump dredging work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14764280A JPS5771940A (en) 1980-10-23 1980-10-23 Cutter water jet pump dredging work

Publications (1)

Publication Number Publication Date
JPS5771940A true JPS5771940A (en) 1982-05-06

Family

ID=15434945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14764280A Pending JPS5771940A (en) 1980-10-23 1980-10-23 Cutter water jet pump dredging work

Country Status (1)

Country Link
JP (1) JPS5771940A (en)

Similar Documents

Publication Publication Date Title
JPS5771940A (en) Cutter water jet pump dredging work
JPS5628929A (en) Anchor of underwater-driven type
CN110847267A (en) Shipborne multifunctional sand taking island-building excavator
JP2840908B2 (en) Underwater soft ground improvement device and improvement method
JPS57133918A (en) Improvement of ground
JPS57205635A (en) Dredging work and water jetting device therefor
JPH05214741A (en) Underwater excavator
JPS56159437A (en) Dredging method using hydraulic power shovel water injection pressure air mixing pump
JPS57155445A (en) Dredging work by clamshell vacuum pump
JPS56159436A (en) Dredging method using clamshell type water injection pressure air mixing pump
JPS57155443A (en) Dredging work by cutter vacuum pump
JPS57155442A (en) Dredging work by wheel cutter vacuum pump
JPS57155432A (en) Method of erecting construction of existing pile
JPS5575032A (en) Dredging method
NL7408623A (en) Suction dredger cutter head - has water jets aimed at area adjacent to where cutter is working
JPS57158537A (en) Method and device for collecting sand of bottom of water
GB1085156A (en) Apparatus for collecting sand and gravel from a gravel layer existing at the lower part of a subaqueous soil layer
JPS61122332A (en) Excavator and excavating method
SU781261A1 (en) Soil-intake device of air-lift dredge
JPS5592425A (en) Method and device for pile being driven into predigged hole
JPS5655631A (en) Settling work of open caisson
JPS5539833A (en) Dredging boat
JPS57155444A (en) Dredging work by drag-line vacuum pump
JPS5744031A (en) Excavator
JPS641891A (en) Pit excavation method