GB/T 17843-1999 Terminology for shipbuilding and offshore structure dredgers
Some standard content:
ICS 01. 040. 47
National Standard of the People's Republic of China
GB/T17843—1999
Shipbuilding and marine structures
Dredger
Structures-Dredgers-Terminology
Published on August 31, 1999
Implemented on June 1, 2000
Published by the State Administration of Quality and Technical Supervision
GB/T17843—1999
This standard adopts the ISO standard equivalently. In terms of content, it includes: the remaining content of ISO8384-1991 "Terminology for Dredgers and Filters for Shipbuilding and Offshore Structures", the terms related to dredgers in GB/T8843-1988 "Terminology for Engineering Ships", and the terms that are not included in the above two standards but are widely used in my country. The arrangement and division of the terms in this standard adopt the arrangement and division of ISO8384. The terms in this standard that are equivalent to ISO8343 are marked with *. Appendix A and Appendix R of this standard are both recommended appendices. This standard will replace the terms related to dredgers in GB/T8843-198B from the time of implementation. GB/T8843 is under revision, and the revised GB8843 will not include the terms related to dredging. This standard was proposed by China Shipbuilding Industry Corporation. This standard is under the jurisdiction of the 601 Institute of China Shipbuilding Industry Corporation. Drafting units of this standard: 708th Institute of China Shipbuilding Industry Corporation, 601 Institute of China Shipbuilding Industry Corporation. Main drafters of this standard: Yan Qingru, Zhang Taibei, Kang Yuan, Li Lianbin 1 Scope
National Standard of the People's Republic of China
Shipbuilding and offshore structures
Dredger
Shiphuilding and raarine structuresDredgerr --Terminology
This standard specifies the special terms and definitions for dredgers. This standard is applicable to the design, construction, inspection and use of dredgers. 2 General terms for dredgers
GB/T 17843--1999
dredging
2.1 Dredging:
The operation of changing the cross-sectional dimensions of a waterway by digging and moving mud to facilitate navigation. In this standard, mud refers to the general term for underwater sediments, sand and dirt.
2.2 Dredger: dredger+dredge
A ship used for dredging.
Dredging unit
A general term for dredgers and their auxiliary ships,
Dredging fleet
A combination of dredging vessels.
Dredging apparatus·dredging apparatus
Mud control equipment: Equipment and systems used for dredging. Dredging equipment: dredglngeguipment
Equipment used to loosen soil, strip soil from the riverbed and lift it up. Suction frame, suction frame
Frame for mounting dredging equipment on a suction dredger. 2:8 Suction frame hoisting device: Ructlon frame holst A pipe used to change the suction pipe channel and fix it in a fixed position. 2.9
gantry
A rigid frame used to install a bridge or suction channel lifting device. 2.10 Soil digcharge stalation: Equipment to be removed from the dredger. Spud installation: Equipment consisting of working piles and pile lifting and fixing equipment. 2.12 Wave compensator: Equipment to ensure that the dredger can dredge in waves and on uneven seabed. 2.13 Self-propelled dredger: A dredger equipped with a propulsion device that can sail independently. Approved by the State Administration of Quality and Technical Supervision on August 31, 1999 and implemented on June 1, 2000. GB/T17843—1999 2.14 Non-self-propelled dredger: A dredger without a propulsion device.
2. 15 Dredger with imlted propulsive capacities A non-self-propelled dredger equipped with a propulsion device that can sail at low speed at the dredging site. 2-16
5 Bucket ladder
A frame on a bucket dredger for mounting the dredging equipment. 2.17
Ladder hoist
A device used to change the position of the bucket bridge and fix it in a certain position.Multi-purpose dredger2.18
An engineering ship with multiple purposes, mainly for dredging and filtering, and also with functions such as rock drilling, leveling, and collecting floating oil.Dismountable dredger2. 19
A dredger assembled from several hulls and equipment modules.Fixlng and moving facility2.20
Equipment used for positioning and shifting during dredging operations, consisting of anchors, winches, positioning piles, etc.2.21
Channeling
A pit dug by a dredger on the bottom of a riverbed.2.22
Dredger tool dredglng facillty
It is a mechanical equipment specially used for dredging ships for water bottom excavation, loosening, crushing and lifting. 2.23
Vacuum release valvevacuum release valveA butterfly valve installed on the branch pipe at the lower end of the mud suction pipe. It can open automatically when the vacuum of the mud pump is too high. Oading
The process of loading mud or slurry into the mud tank. Dumping
The process of unloading mud into the water. Unloading
The process of discharging mud and slurry in the mud tank out of the tank. 2.27
Mud well
A wall structure located at the bottom of the hull under the mud pump to store mud and sewage. Gas remaval equipment2.28
A device for extracting gas generated by organic slurry in the mud pump. 2.29
Flushing pump
Jet water pump
Centrifugal high-pressure water pump used to provide high-pressure water flow to filter soil, chain bucket mud or dilute mud in mud barge. 2. 30 Jet water sphrutHigh-pressure water spray pipe connected to the self-flushing water pump.
3Dredgers classified by the method of dredging soilTerminology Suction dredger*suction dredger
Dredger that uses centrifugal or axial flow filter pumps to extract mud. 3.2Jet pump dredger·jet ejector dredgerDredger that uses jet pumps to lift mud.
3.3Air lift dredger: Air lift dredgerDredger that uses compressed air to extract mud. 3.4 Bucket dredger
Bucket dredger
GB/T17843 -1999
A dredger that uses a bucket chain made of chain buckets to dig mud. 3.5 Dipper dredger
A dredger with a bucket on the bucket arm, and the direction of the bucket's movement is toward the outside of the ship during dredging. Not recommended Synonyms: bucket dredger
36 degree dredger baekhoedredger
A dredger with a bucket on the bucket arm, and the direction of the bucket's movement is toward the inside of the ship during dredging. Not recommended Synonyms: bucket dredger
Bucketless dredger: grahdredger
A dredger that uses one or more lone buckets to dig mud. 3.8 3
Dragline dredgerDredge that uses a dragline to dig soil. Rockcutter suction dredger3.9
Suction dredger that uses a special dredger to dig rocks or boulders. 3.10 Rock breaker
A ship equipped with equipment for breaking underwater rocks. This type of rock breaking is a pre-treatment work before dredging. 3. 11
A rock breaker with a fully falling chisel is a rock breaker that breaks rocks by gravity with a chisel hammer. 3. 12
A rock breaker with a powered chisel is a rock breaker that breaks rocks under the action of a powered chisel hammer. 3. 13
A rock drilling yesse!
A ship that drills holes in an underwater rock and places explosives when necessary. 3.14
A dredger is a dredger used to loosen the underwater mud so that it can be carried away by water. 3.15 Bed leveler A dredger used to level the riverbed in the dredged area: its function is to use the water flow to wash away the loosened or agitated mud and let it settle in the deeper part. 3.16 Jetting suction dredger A dredger that uses high-pressure water to loosen the mud and uses centrifugal force to suck and discharge the mud. Trailing suction hopper dredger 3.17
A self-propelled mud tank dredger that sails at low speed when dredging. It drags a propeller mounted at the lower end of the dredger frame that contacts the mud to loosen the mud, and the mud pump sucks the mud at the propeller head and discharges it into the mud tank. 3.18 Split-type dredger A dredger with a splittable suction dredger whose mud tank is connected by two parts. 9 Tralling suction sidecasting dredger3. 19
A dredger with a side-casting device to discharge the slurry directly to the outside. 3.20 Cutter dredger A dredger that uses a dredging auger to loosen the underwater mud. Dustpan dredger; Hydraulic dustpan dredger3.21
A dredger with a suction cup at the front end of the suction pipe. 3.22 Bucket wheel dredger A dredger with a bottomless bucket wheel to loosen the underwater mud. 3.23 Barge loading dredger A ship that dilutes the mud in the mud barge with high-pressure water and transports the mud to the mud discharge area by mud pumps. 3.24 River sludge dredger 3
CB/T 17843 -- 1999
A suction dredger that sucks up the alluvial mud on the riverbed. Pump dredger 3.25
A dredger that excavates mud with a hydraulic system, crushes it, and flushes it into filter slurry, which is then sucked out by a mud pump and discharged. 1 Terminology of mud discharge methods and equipment
4.1 Discharge pipe: A channel for discharging mud,
4.2 Loating discharge pipeline: The part of the mud delivery pipeline that floats on the water. Supported by a floating or floating structure combined with it. 4.3 Pipe buoy P-ontron A device that provides support for the floating pipe. 4.4 Submersible pipe The part of the mud pipe that passes through the water area and is not supported on the water surface. Dirruser A component installed at the end of the mud pipe to reduce the flow rate of mud entering the sedimentation drain. 4.6 Discharge nezzle A port located at the end of the pipe. Hopper barge A ship that transports the soil extracted during dredging. 4.8 Soil transportation by harges Soil extracted during dredging is transported by barges. 4.9 Mud chute A guide trough for gravity filtration.
Sand transport by ehutey40
The soil extracted during dredging is transported to a non-sand area through a sufficiently long mud well. Mud well · sump
is located in the bucket tower and can transport the soil from the mud bucket to any direction. 4. 12 Butterfly lve
A device used to transport mud in the mud: 1: direction. Soil conveyor: soltconveyor
The mud is excavated from the mud pit and transported to the mud pit. 4. 14
Sand transport system: soll transfer with conveynrA system that uses multiple conveyors to transport the excavated soil to a sufficiently far mud discharge site. 4.15 Hopper dredger with mud tank Hopper dredger with mud tank that can carry the mud in the mud tank to the mud discharge area. Not recommended synonyms, white-load filter dredger
4.16 Mud tank: Bopper
A tank in a dredger or a barge used to hold the soil to be transported to the discharge area. Overflow arrangement: Overtlow arrangement4. 17
An arrangement for removing water and suspended mud to increase the concentration of the entire filter tank. 4. 18 Botton discharge opening~
botton discharge opening
An opening at the bottom of the tank: through a mud door or bottom opening. Not recommended synonyms, bottom discharge opening
GB/T 17843—1999
Dor-operating device A device used to open and close the mud door and ensure that the mud door and mud door opening are sealed when closed. 4.20
Splithul
A vessel with a mud tank or a mud barge that can be opened along the length of the mud tank. 4.21
Hoop dumpbarge
A mud barge with a mud door at the bottom of the mud tank
Split hopper barge
A mud barge with a mud tank body hinged in two halves that can be opened and closed
Stone dumper
A barge that carries stones and dumps the stones into the construction waters. 4.24
1 Hopper door
A door for mud tank unloading.
Spraying tube
A water-spraying pipe. Mud is sprayed into the tank from this pipe to reduce the mess and speed up the sedimentation of mud. 4. 26
ErossringfilexiblejolntCross ring thick knife connecting joint, is the movable bracket of the short pipe section between two rigid suction pipes.4.27
Humper diutng installationA device that uses commercial pressure water to flush the sludge in the filter chamber into mud.4.28
Ball jointBall joint
Installed between two rigid filter pipes, a ball joint for sealing the mud pipe that can rotate in two degrees of freedom.4. 29
Expansian jointStuffing boxInstalled at the connection between the mud outlet and the mud pipe in the ship, equipped with a water-sealed stuffing box, a short pipe that can be extended and retracted. 4.30 Mud discharge pipe connection device
shore connecting plant
It is a device that connects the water pipe and the shore pipe, which is composed of a flexible head, a telescopic kidney, a short pipe section, etc. It has the characteristics of being able to shrink and swing left and right. 4.31
Self-floating mud pipe dredger's self noatln pipeline The outside of the pipe body is wrapped with buoyant materials and reinforced with a protective layer. The mud discharge pipe can float on the water surface when transporting mud. Turning elbow
turntng gland; stern turadag gland4.32
At the end of the mud discharge pipe on the ship, it is connected to the water pipe and can be used as a packing function straight elbow that can rotate in a plane. Side discharge device sidedischarge (cugting) insatllation4.33
A boom that can be extended out of the barge is installed on the side-throwing suction dredger. A mud discharge pipe is installed on it, and the mud is discharged out of the ship through this mud pipe: 4. 34
Self-empty installationA device that uses the mud pump on board to suck the filter slurry in the tank and discharge it to the ship. 4.35
Automatic light mixture over hoard installationThe mud discharge pipe of the dredger with mud tank can automatically control the overflow mud trough and gate valve according to the different specific gravity of the mud. When the mud concentration is low, the gate valve is opened to discharge the filter slurry to the outside. When the concentration is high, the gate valve is closed to input the mud into the tank. 4. 36 Loading box
A box that can dissipate energy and is installed below the loading waterline of the mud tank. It can make the mud from the loading box slowly and evenly discharged into the mud tank to facilitate sedimentation.
Hydraulic overflow cylinder
Hydraulle overflow cylinder
A movable overflow cylinder that uses hydraulic drive to control the height of the loading line. 4.38
Efoating booster stallon
Floating relay pump station
A pressurized mud pump station connected in series in the middle of a long-distance floating drainage pipeline. 4. 39 Characteristic curves of dredge pipet5
GB/T 17843 -1999
The relationship curve between the head loss of mud flowing in the mud pipe and the flow rate and pipeline length. 4.40 Stone catcher
A watertight box located at the inlet of the mud suction pipe in front of the mud pump to deposit large stones and debris, and equipped with a valve for removing sediments. 5Terms for equipment and methods of operation movement
5.1 Operation movementThe movement of the dredger when working in the dredging area. 5.2 Operation anchor"Dredge anchor
Anchor used by the dredger for operation movement. 5.3 Dredge tender
A self-propelled boat used to place or move the operation anchor, tow mud barges, mud pipes and other auxiliary work. 5.4
Anchor-handling boom
A boom used on the dredger to place and move the operation barge. 5.5 Spud
A cylindrical or square column pile used for fixing and moving the dredger when working. 5.6
Spud carriage
A device that can move forward and backward relative to the hull with the spud during operation. Longitudinal operation 5.7 Operating movement of a dredger or dredging equipment moving forward and backward in the dredging area. 5.8 Transverse operating movement Operating movement of a dredger or dredging equipment moving transversely in the dredging area. 5.9 Headline winch A winch used to position a dredger longitudinally and move it forward in the dredging area. 5.10 Sternline winch A winch used to position a dredger longitudinally and move it backward in the dredging area. Note: "headline winch" and "sternline winch" are only applicable when the dredging equipment is made at the bow of the dredger. 5.11 Sideline winch: A winch used to position a dredger transversely in the dredging area. "End pontoon winch"5.12
A winch installed on the end pontoon. Used to move the end pontoon to spread the discharged mud.5.13 Hoisting winch
A winch used to hoist and place the cutter frame, target arm, bucket bridge, mud suction pipe and other structures.5. 14 Harge warping winchA winch installed on the dredger to move the mud barge.5. 15 Drag head winchA winch at the target head end of the lifting rake arm.bzxZ.net
6 Gimbal winch
A winch that lifts the middle joint of the dredger.
5. 17 Trunnion winchA winch that lifts the upper end of the target arm to rotate the elbow and slider.5. 18 Three-way rope's position syatem A set of mooring equipment including a three-cable underwater guide pile composed of an anchor, left and right side anchors and anchor cables, as well as anchor cables, working anchors, anchor buoys, etc., installed at the end of the dredger's deck.
Spad gantry
The structure of the support and positioning pile.
GB/T 17843—1999
Underwater guide pile Huchor line guide spud is a guide pile installed on both sides of the end plate and extends underwater. Its lower part is a roller fairlead. When working, the fairlead is placed to a certain depth underwater so that the cable can be towed from underwater without affecting the navigation of the ship. 6 Mud system and loosening equipment terms
Mud·
dredging mixture
mixture of dredged soil and water or mud, water and air. dredgepump
pump for delivering slurry:
submersibledredgepump
cement pump·
mud pump installed under water outside the ship.
concentration uf dredged mixture6.4
mud concentration
ratio of the total volume of solid matter in the dredged mixture. 6.59
suctEon plpeline
Suction pipeline:
Pipeline from suction to mud pump.
Suction pipe suctioBplpe
Moveable arm at the front of the suction pipeline.
dragearm
Suction pipe of the drag-suction control mud boat that can be lowered to the bed surface during operation. 6.8
Draghend (suctian hecad)Device installed at the end of the slurry arm. A device installed at the front end of the suction pipe. 6. 9
Jet pump suction aidJet suctnn asslstDevice to improve the suction performance of mud.
Mud delivery pipelinedeHwery plpeline
Pipeline for transporting mud discharged from the mud pump. 6.11 Tu-hall delivery pipeline The part of the mud delivery pipeline between the mud pump outlet and the ship's mud discharge pipe. 6.12 Pipeline swivel joist The hinged or swivel joint between the sections in the pipeline. 6.73 Agitator A device for loosening the soil in the bed. 6.14 Hydraulic agitator A device that uses the energy of a jet of water. 6.15 Mechanical agitator A device that is equipped with one or more continuous agitators. 6.16 Cutter head A crown-shaped mechanical agitator composed of blades of appropriate shape. 6.17 Rotary agitator: ratary agitator
…- one or more mechanical agitators rotating around a vertical axis. 6.18 Hucket wheel- hucket wheel
A rotary agitator with multiple bottomless mud buckets installed on a ring to form a cutting part. 1
GB/T 17843—1999
6.19 Mud pump efficiency dredging punp efficiency The ratio of the effective power P, of the dredging pump to the shaft power P,. 6.20 Total head of dredging pump The difference between the suction and output pressures of the dredging pump. Expressed in water column height (m). Characteristic curve of dredge pump 6.21
- The relationship curve between the main factors such as flow rate Q, head, shaft power P, and efficiency\ of a centrifugal mud pump at a constant speed. 6.22 Rubberized Dredge Pump A wear-resistant centrifugal mud pump whose volute, the surface of the inlet and outlet channels and the surface of the impeller are all wrapped with composite materials such as rubber and plastic. 6.23 Double Wall Dredge Pump A double-shell mud pump consisting of an outer shell and an inner sleeve. 6.24 Gland Pump
A special water pump that uses high-pressure water as a water seal on the friction surface of the rotating shaft to prevent the incorporation of mud and sand. 6.25 Ejector Pump
A pump that uses high-pressure water as the working fluid to suck and discharge mud. 6.26 Ejector Pump
A water pump that provides working fluid to the ejector. Alr Lift Mud Pump 6.27
A device that uses compressed air to make the specific gravity of the mixture of water and air in the mud suction device less than the specific gravity of the liquid at the suction port of the mud suction device, thereby generating a pressure difference to suck up and discharge mud from the bottom of the water. 6. 28 High-pressure water nozzle jet nozzle
A nozzle that sprays high-pressure water to loosen the soil. 6.29
Water jet equipment
A device that supplies water to the high-pressure water nozzle.
Cutter ladder
A frame for erecting axles, mud suction pipes, submersible motors, submersible mud pumps, and cutters. Dustpan; Dustpan suctton tube6.31
A wide suction head installed at the front end of the mud suction pipe. It has multiple high-pressure water nozzles evenly distributed on it, which is suitable for loosening loose filter soil. 6. 32
Self adjustable pedrag bead A head that can automatically adjust the contact angle with the bottom of the water according to the shape of the bottom of the water with the help of a movable cover. 6. 33. Drag head with jet nozzle A head equipped with a high-pressure water nozzle.
Target suction device drag and guctlon devlce is a dredging system composed of a dredging head, a target suction pipe, a hanger, etc. It is a special equipment for a dredger. 7 Mud bucket (including grab bucket, shovel bucket) terminology
7.1 Bucket assembly
A device for lifting mud or transporting mud to the mud discharge site. 7.2 Bucket tower
A frame on a bucket dredger to install bucket chain transmission components and filter jaw unloading equipment. 7.3 Bucket
A dredging component used to cut, hold and lift filter soil. 7.4 Bucket capacity
The maximum volume of a mud bucket filled to the edge of the bucket. 8
7.5 Bucket chain
Bucket chain
A chain consisting of multiple mud buckets and connecting plates, 7.6 Bucket chain pitch GB/T 17843 —1999
The distance between the centers of the corresponding mounting holes of two adjacent buckets. Upper tumbler: upper tumbler
Used to support and drive the roller of the bucket chain located at the upper end of the bucket bridge. 7.8
Lower tumbler
Used to support and guide the roller of the bucket chain located at the lower end of the bucket bridge. 7.9
Bucket bridge ukar dder
Auxiliary structure between the upper tumbler and the lower bearing of the bucket bridge 7.10
Bucket chain tensioning device*hucket chain tightening device is a device used to adjust the droop of the bucket chain.
Bucket chain lower tumbler
The underhanging part of the bucket wheel at the lower tumbler of the bucket chain. The bucket first contacts the tumbler at this place. Bucket chain catenary
The bucket chain section suspended between the upper tumbler and the lower tumbler at the lower end of the bucket bridge. Bucket roller
Roller mounted on bucket bridge and tipping bucket bridge to support bucket chain. Bucket chain drive 7. 14
A bucket chain drive motor and a mechanism to transmit power to the upper guide wheel. 7. 15
Bucket chain motor: Bucket drive motor is a motor that drives the upper guide wheel.
Continuous bucket chain Closed connected bucket chain 7.16
Bucket chain with buckets connected to each other. 7 t?
Open cunnected bucket chain Interval bucket chain
Bucket chain with buckets and filter buckets separated by chain link plates. 7. 18. Bridge guard Fender at well slde Anti-wear guard installed obliquely on the slotted side plate to prevent the chain bucket and bucket bridge from being damaged during operation. 7.19
9 Bucket pin
A wear-resistant pin connecting two filter buckets or buckets and chain link plates. 7. 20 Mud crusher
A hydraulic knife installed on a self-propelled chain bucket dredger, shaped like a gear cutter, used to crush mud blocks into slurry. 7. 2T bucket changer Grah machlne; Jib crane A lifting machine with the functions of grabbing buckets, dropping, filtering, lifting, opening, unloading and closing buckets. 7. 22 Grab
A bucket-shaped container that can be opened and closed for mixing soil and various bulk goods. 7. 23
Double bucket Cham he brown each rah
A bucket composed of two bucket bodies, shaped like a clam shell. 7. 24
Multi-piece ball bucket grab
Made of multiple buckets, it is a grab suitable for manual excavation of rocks. 7.25
whole trine grab
made of thick steel, it is a grab suitable for manual excavation of hard soil. 7.26 half trinegrab
a grab with short teeth.
single rope grab ingleropegrah
GB/T 17843—1999
One rope, one roller, to control the opening, closing, dropping and lifting of the grab.Twnrope grab twnrope ... machine
On a bucket dredger, it is composed of a machine shed, a herringbone, a boom, a pull rod, a bucket handle and other components, and has the functions of lifting, rotating, pushing, digging and so on.
Dipper
A square, toothed bucket-shaped digging tool installed at the front end of the bucket handle that can open the bottom to unload mud. 7.33
Backhoe Buck hoe
A bucket-shaped digging tool installed on a backhoe excavator. Tail swing of grab machine7. 34
The distance between the farthest point at the rear end of the grab-bucket machine and the center line of the turntable. 7.35
Grab extreme elevation The distance that the grab bucket can be lifted and lowered in the vertical direction. Over board reach of grab The maximum distance from the centerline of the grab when the grab is turned outward. Maximum huisting height of grah The maximum height of the grab bottom above the full waterline. Frequency of bucket dredging The number of times a chain bucket dredger dumps mud buckets per minute. Pushing mechanism Dippererowing gear
The mechanism on the dipper winch that pushes the bucket handle to move the bucket back and forth. 8 Dredging super terms classified by the form of power device 8.1 Prime motor
The machine that provides power for dredging equipment to transport mud. Note: The prime motor can also provide power for other equipment. Diesel dredger: diesel dredger
A dredging ship with a diesel engine as the prime mover.
Oil-electric dredger: dlesel-electric dredger 8.3
A dredger that uses a diesel engine as a prime mover to drive a generator, which then supplies power to the motors of all dredging equipment, and can also supply power to the propulsion device. Diesel-hydraulic dredger8.4
A diesel engine is used as a prime mover to drive a hydraulic motor, which then supplies hydraulic power to all dredging equipment, and can also hydraulically drive a dredger that propels bone loading.
8. 5 Steam dredgerSteam dredgerA dredger that uses a reciprocating steam engine or steam turbine as a prime mover. 8.6 Gas turbine dredger
gas turbine dredger
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