GB1457071A - Method and apparatus for investigating the condition of the bottom mateiral under a body of water - Google Patents
Method and apparatus for investigating the condition of the bottom mateiral under a body of waterInfo
- Publication number
- GB1457071A GB1457071A GB272074A GB272074A GB1457071A GB 1457071 A GB1457071 A GB 1457071A GB 272074 A GB272074 A GB 272074A GB 272074 A GB272074 A GB 272074A GB 1457071 A GB1457071 A GB 1457071A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- area
- marker buoys
- sledge
- fluidized
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
- E02F5/107—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using blowing-effect devices, e.g. jets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Ocean & Marine Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
1457071 Marker buoys SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 21 Jan 1974 02720/74 Heading G4F [Also in Division B7] To investigate whether or not the bottom material under a body of water may be fluidized to permit pipe laying, a sledge 9 is moved over the bottom by being towed from a surface vessel, fluidization fluid e.g. water or air or a mixture of water and air, is delivered to a device 8 mounted on the sledge 9 and provided with openings along its length so as to fluidize an area 16 around the device, and a signal is produced when the device 8 moves a predetermined amount relative to the sludge upon encountering or leaving an area 17 which cannot be fluidized. The signal may be electric, hydraulic or pneumatic which is monitored on the surface vessel but in the preferred embodiment comprises marker buoys 13, 20 which are released respectively when entering or leaving the area 17. In this embodiment the device 8 is mounted on the frame 9 so as to be rotatable about a horizontal axis and is biased into the upright position by an elastic element 21. The marker buoys 13 and 20 may be stowed in respective and similarly operable magazines. As shown in Fig. 4, the marker buoys 13 together with their mooring lines 14 and anchoring elements 18 are stowed in respective pockets 33 of a cylindrical element 32 located within a cylindrical housing 31. Upon the device 8 (schematically repesented by a pecked line) moving from its upright position to an inclined one, a pawl 35 which it carries engages a ratchet wheel 34 to rotate the element 32 and consequently bring a pocket 33 into alignment with an opening in the housing 31 whereby a buoy 13, its mooring line 14 and anchoring element 18 is released. A similar magazine is provided for the marker buoys 20 except that its cylindrical element is rotated by a pawl on the device 8 engaging a ratchet wheel when the device 8 rotates from an inclined position to return to its upright position upon leaving an area which cannot be fluidized (Figs. 6, 7, not shown). A plurality of the devices 8 may be mounted on the sledge to cover a wider strip.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB272074A GB1457071A (en) | 1974-01-21 | 1974-01-21 | Method and apparatus for investigating the condition of the bottom mateiral under a body of water |
| JP791875A JPS5938371B2 (en) | 1974-01-21 | 1975-01-20 | Method and apparatus for investigating underwater conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB272074A GB1457071A (en) | 1974-01-21 | 1974-01-21 | Method and apparatus for investigating the condition of the bottom mateiral under a body of water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1457071A true GB1457071A (en) | 1976-12-01 |
Family
ID=9744620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB272074A Expired GB1457071A (en) | 1974-01-21 | 1974-01-21 | Method and apparatus for investigating the condition of the bottom mateiral under a body of water |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5938371B2 (en) |
| GB (1) | GB1457071A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986000656A1 (en) * | 1984-07-04 | 1986-01-30 | Terence Jeffrey Corbishley | Underwater trenching |
| NL1016510C2 (en) * | 2000-10-31 | 2002-05-02 | Ballast Nedam Baggeren Bv | Underwater pipeline laying device comprises frame with one section in contact with pipeline and another section with nozzles for excavating soil beneath pipeline |
| WO2021000345A1 (en) * | 2019-07-01 | 2021-01-07 | 大连理工大学 | Horizontal continuous measuring method for soil mass parameters of soft soil site |
-
1974
- 1974-01-21 GB GB272074A patent/GB1457071A/en not_active Expired
-
1975
- 1975-01-20 JP JP791875A patent/JPS5938371B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986000656A1 (en) * | 1984-07-04 | 1986-01-30 | Terence Jeffrey Corbishley | Underwater trenching |
| NL1016510C2 (en) * | 2000-10-31 | 2002-05-02 | Ballast Nedam Baggeren Bv | Underwater pipeline laying device comprises frame with one section in contact with pipeline and another section with nozzles for excavating soil beneath pipeline |
| WO2021000345A1 (en) * | 2019-07-01 | 2021-01-07 | 大连理工大学 | Horizontal continuous measuring method for soil mass parameters of soft soil site |
| US11332904B2 (en) | 2019-07-01 | 2022-05-17 | Dalian University Of Technology | Lateral and continuous measurement method for soil parameters in soft soil field |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5938371B2 (en) | 1984-09-17 |
| JPS50103113A (en) | 1975-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |