GB1085156A - Apparatus for collecting sand and gravel from a gravel layer existing at the lower part of a subaqueous soil layer - Google Patents

Apparatus for collecting sand and gravel from a gravel layer existing at the lower part of a subaqueous soil layer

Info

Publication number
GB1085156A
GB1085156A GB3032365A GB3032365A GB1085156A GB 1085156 A GB1085156 A GB 1085156A GB 3032365 A GB3032365 A GB 3032365A GB 3032365 A GB3032365 A GB 3032365A GB 1085156 A GB1085156 A GB 1085156A
Authority
GB
United Kingdom
Prior art keywords
jets
gravel
nozzle
soil layer
layer
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.)
Expired
Application number
GB3032365A
Inventor
Hirotsugu Saito
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.)
ASIA DREDGING CO Ltd
Original Assignee
ASIA DREDGING 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 ASIA DREDGING CO Ltd filed Critical ASIA DREDGING CO Ltd
Priority to GB3032365A priority Critical patent/GB1085156A/en
Publication of GB1085156A publication Critical patent/GB1085156A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9206—Digging devices using blowing effect only, like jets or propellers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9243—Passive suction heads with no mechanical cutting means
    • E02F3/925—Passive suction heads with no mechanical cutting means with jets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

1,085,156. Suction dredgers; jetting equipment, ASIA DREDGING CO. Ltd. July 16, 1965, No. 30323/65. Heading E1F.. Sand and pebbles are collected from a gravel layer existing at the lower part of a soil layer beneath the sea by means of a downwardly directed hydraulic jets 40, 42 and horizontally directed jets 37 and removed solely by hydraulic ejection created by an ejector formed by a nozzle 32, flexible pipes 10, 11, 15, 17 connecting the jets to a floating work platform having a pump or pumps for feeding water to the jets and having winding means mounted thereon for raising and lowering the apparatus housing the jets. The jetting nozzle 42 comprises an inverted cone with a digging nozzle opening in its vertex and an upwardly directed nozzle 41 in its base to assist the ejector.
GB3032365A 1965-07-16 1965-07-16 Apparatus for collecting sand and gravel from a gravel layer existing at the lower part of a subaqueous soil layer Expired GB1085156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3032365A GB1085156A (en) 1965-07-16 1965-07-16 Apparatus for collecting sand and gravel from a gravel layer existing at the lower part of a subaqueous soil layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3032365A GB1085156A (en) 1965-07-16 1965-07-16 Apparatus for collecting sand and gravel from a gravel layer existing at the lower part of a subaqueous soil layer

Publications (1)

Publication Number Publication Date
GB1085156A true GB1085156A (en) 1967-09-27

Family

ID=10305825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3032365A Expired GB1085156A (en) 1965-07-16 1965-07-16 Apparatus for collecting sand and gravel from a gravel layer existing at the lower part of a subaqueous soil layer

Country Status (1)

Country Link
GB (1) GB1085156A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242698A (en) * 1990-04-04 1991-10-09 Translift Freight Limited Dredging method
CN102561432A (en) * 2012-03-09 2012-07-11 曾春明 Deep sand dredging device from earth surface of continental riverway

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242698A (en) * 1990-04-04 1991-10-09 Translift Freight Limited Dredging method
GB2242698B (en) * 1990-04-04 1994-12-14 Translift Freight Limited A method and apparatus for dredging
CN102561432A (en) * 2012-03-09 2012-07-11 曾春明 Deep sand dredging device from earth surface of continental riverway
CN102561432B (en) * 2012-03-09 2014-06-18 曾春明 Deep sand dredging device from earth surface of continental riverway

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