CN108547341A - Maintenance dredging construction technology - Google Patents
Maintenance dredging construction technology Download PDFInfo
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- CN108547341A CN108547341A CN201810299085.6A CN201810299085A CN108547341A CN 108547341 A CN108547341 A CN 108547341A CN 201810299085 A CN201810299085 A CN 201810299085A CN 108547341 A CN108547341 A CN 108547341A
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- construction
- ship
- rake
- grab
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
-
- 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
- E02F3/8833—Floating installations
- E02F3/885—Floating installations self propelled, e.g. ship
-
- 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
- E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
- E02F5/285—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with drag buckets or scraper plates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
- E02F9/261—Surveying the work-site to be treated
- E02F9/262—Surveying the work-site to be treated with follow-up actions to control the work tool, e.g. controller
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
A kind of maintenance dredging construction technology of the present invention, includes the following steps：S1：Preparation of construction determines construction area and determines depth of dredging；S2：Main construction area construction；S3：It constructs in auxiliary construction region；The present invention inhales the form of construction work that ship is used in combination with Grab using rake, ship is inhaled using rake first to construct to main construction area, it is constructed using Grab close to the surrounding area of harbour, for such form of construction work by making full use of rake to inhale ship and the advantage of Grab respectively, the sequence of construction that ship and Grab are inhaled to rake carries out reasonable distribution, improves whole construction efficiency, it ensure that construction quality, it ensures construction safety, shortens each ship and occupy the phase, reduce construction cost.
Description
Technical field
The present invention relates to dredging technology fields, more particularly to a kind of maintenance dredging construction technology.
Background technology
Since the construction area of construction area is big, mud layer is thin, the shallow point dispersion in subregion, and close to the area of established wharf
Domain difficulty of construction is big, while in construction to construct in navigation, construction ship needs to pay attention to evacuation when having ship to enter harbour,
Normal construction can be influenced in this way, if shippping traffic intersects with construction ship, can be brought great potential safety hazard；
The characteristics of when for above-mentioned construction area and construction, in the prior art using exclusive use Grab or rake
Inhale ship construct, if be used alone Grab construction, will be interfered with each other with the ship of i/o terminal, ship interest rate it is relatively low and
Security risk is larger, simultaneously because construction area area is excessive, to construction area sweep using Grab shallow time-consuming too long；If single
Solely ship is inhaled using rake to construct, then need to keep certain safe distance between established wharf, thus influence close to harbour part
Region construction.
Invention content
The technical problem to be solved in the present invention is to provide one kind with harrow inhale ship construction based on, Grab construction supplemented by construction
Pattern not only ensure that working security, but also improve construction efficiency, and construction cost is greatly lowered.
A kind of maintenance dredging construction technology of the present invention, includes the following steps：
S1：Preparation of construction comprising：
S101：Determine construction area, and it is main construction area and auxiliary construction region that construction area, which is divided, wherein main
Construction area inhales ship using rake and constructs, and auxiliary construction region is to be constructed using Grab close to dock area；
S102：Depth of dredging is determined, as the depth h ＞ 2m in the seabed regions Dai Wa, by seabed region division to be dug
For initiation layer and quality layers, the initial horizon is on quality layers；
As the depth h≤2m in the seabed regions Dai Wa, the seabed Dai Wa only has quality layers in region；
S2：Main construction area construction comprising：
When the seabed is when it is initiation layer and quality layers to dig region division comprising：
S201：Rake is inhaled ship and is navigated by water to main construction area, and the drag head with dredging tube is put to seabed, dredge pump, drag head are passed through
And the mutual cooperation effect of dredging tube constructs to initiation layer, while mud is sucked into rake and is inhaled in ship hopper dredger；
S202：It after the completion of initiation layer construction, constructs to quality layers, while mud is sucked into rake and is inhaled in ship hopper dredger；
S203：After rake suction ship hopper dredger fills mud, drag head is withdrawn from seabed, rake suction ship, which is navigated by water to mud dumping area, to be unloaded
Mud；
S204：Rake, which is inhaled ship and returned again to rake, after dump inhales ship construction area.
S205：Step S201~S204 is repeated, is cleaned out until rake is inhaled the mud in ship construction area；
When the regions the seabed Dai Wa only have quality layers comprising：
S201：Rake is inhaled ship and is navigated by water to main construction area, and the drag head with dredging tube is put to seabed, dredge pump, drag head are passed through
And the mutual cooperation effect of dredging tube constructs to quality layers, while mud is sucked into rake and is inhaled in ship hopper dredger；
S202：After rake suction ship hopper dredger fills mud, drag head is withdrawn from seabed, rake suction ship, which is navigated by water to mud dumping area, to be unloaded
Mud；
S203：Rake, which is inhaled ship and returned again to rake, after dump inhales ship construction area.
S204：Step S201~S203 is repeated, is cleaned out until rake is inhaled the mud in ship construction area；
S3：It constructs in auxiliary construction region comprising：
S301：Grab is navigated by water to auxiliary construction region, and grab bucket is put to seabed designated depth, and mud layer is inserted by grab bucket
It constructs to initiation layer, and grab bucket is lifted out by the water surface by crane simultaneously, so that grab bucket is circled round to designated position will grab bucket
Interior silt particle removal；
S302：It after the completion of initiation layer construction, constructs to quality layers, and grab bucket is promoted by water outlet by crane simultaneously
Face makes grab bucket circle round the silt particle removal in grab bucket to designated position.
Maintenance dredging construction technology of the present invention, in wherein step S101, the rake is inhaled ship and is equipped with on Grab
DGPS positioning systems, each DGPS positioning systems are correspondingly connected with master control system.
Maintenance dredging construction technology of the present invention, in wherein step S101, when construction area determines, first according to design drawing
Paper inputs determining respective boundary of works area data in the master control system, and is applied to corresponding by master control system
Construction equipment carries out construction area control.
Maintenance dredging construction technology of the present invention, wherein the rake, which is inhaled, is equipped with the deep indicator of digging, institute on ship and Grab
The deep indicator of digging is stated to connect with the master control system.
Maintenance dredging construction technology of the present invention, in wherein step S3, the Grab is equipped with Grab hopper dredger, described
Silt particle is discharged into Grab hopper dredger by grab bucket, and after Grab hopper dredger is filled, Grab navigates by water to mud dumping area and carries out dump.
Maintenance dredging construction technology of the present invention wherein after removal, repeats step S301~S302, until will grab bucket
Silt particle in ship construction area cleans out.
Maintenance dredging construction technology of the present invention, in wherein step S3, the side of the Grab is equipped with hopper, described to grab
Silt particle is discharged into hopper by bucket, and after hopper is filled, hopper navigates by water to mud dumping area and carries out dump
Maintenance dredging construction technology of the present invention, wherein after removal, hopper is back at Grab, repeats step
S302, until the silt particle in Grab construction area is cleaned out.
Compared with prior art, it advantage for present invention and has the beneficial effect that：The present invention inhales ship and grab bucket using rake
The form of construction work that ship is used in combination inhales ship using rake first and constructs to main construction area, adopted close to the surrounding area of harbour
Constructed with Grab, such form of construction work by making full use of rake to inhale ship and the advantage of Grab respectively, to rake inhale ship with
The sequence of construction of Grab carries out reasonable distribution, improves whole construction efficiency, ensure that construction quality, it is ensured that construction peace
Entirely, shorten each ship and occupy the phase, reduce construction cost.
The maintenance dredging construction technology of the present invention is described further below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the flow chart of maintenance dredging construction technology of the present invention；
Fig. 2 is the structural schematic diagram that rake inhales ship in maintenance dredging construction technology of the present invention；
Fig. 3 is the structural schematic diagram of Grab in maintenance dredging construction technology of the present invention；
Fig. 4 is construction area distribution diagram in maintenance dredging construction technology of the present invention；
Wherein：1, rake inhales ship；2, Grab；3, main construction area；4, auxiliary construction region；
101, rake inhales ship hull；102, rake inhales ship hopper dredger；103, dredging tube；104, drag head；
201, Grab hull；202, Grab hopper dredger；203, crane；204, it grabs bucket；205, anchor rouses；206, anchor chain.
Specific implementation mode
A kind of maintenance dredging construction technology of the present invention, wherein as shown in Fig. 2, it includes that rake inhales 1 hull of ship, rake that rake, which inhales ship 1,
1 hopper dredger of ship, dredging tube 103 and drag head 104 are inhaled, rake is inhaled 1 hopper dredger of ship and inhaled on 1 hull of ship positioned at rake, and drag head 104 is mounted on dredging tube
103 one end, the other end and rake of dredging tube 103 are inhaled 1 hopper dredger of ship and are connect, harrow in suction 1 hopper dredger of ship and be equipped with dredge pump, dredge pump and suction mud
Pipe 103 connects；
As shown in figure 3, Grab 2 includes 2 hull of Grab, 2 hopper dredger of Grab, 2 hopper dredger of Grab is located at 2 ship of Grab
On body, one end of 2 hull of Grab is equipped with crane 203, and the end of crane 203 is equipped with grab bucket 204,2 hull of Grab
The other end be equipped with anchor chain 206, be cased with anchor drum 205 on anchor chain 206；
As shown in Figure 1, including the following steps：
S1：Preparation of construction comprising：
S101：Construction area is determined, as shown in figure 4, and it is main construction area 3 and auxiliary construction area to divide construction area
Domain 4, wherein main construction area 3 inhales ship 1 using rake and constructs, and auxiliary construction region 4 is close to dock area, using grab bucket
Ship 2 is constructed, and is divided the reason is that because rake inhales ship 1 and cannot construct in the waters of narrow scope, and closer to quayside, lamp
It is more to float and lead aid to navigation, rake suction ship 1 will be unfavorable for and constructed, therefore Grab 2 is selected to construct in harbour near zone,
Ensure construction quality；
Specifically, rake is inhaled is equipped with DGPS positioning systems on ship 1 and Grab 2, and each DGPS positioning systems are correspondingly connected with
Determining respective boundary of works area data when construction area determines, are inputted main control by master control system according to design drawing first
In system, wherein boundary of works area data include slitting data, side slope unwrapping wire data etc., and by master control system to respectively right
The construction equipment answered carries out construction area control, to ensure strictly control the digging of each construction area during practice of construction
Mud sideline；
S102：Determine that seabed region division to be dug is first as the depth h ＞ 2m in the seabed regions Dai Wa by depth of dredging
Beginning layer and quality layers, initial horizon is on quality layers；
As the depth h≤2m in the seabed regions Dai Wa, the seabed regions Dai Wa only have quality layers.
Specifically, construction area nearby sets up tidal level station, and tide gauge, tide gauge and master control system are equipped in tidal level station
Connection, tide gauge carry out monitoring in real time to water level and send water level signal to master control system, meanwhile, rake inhales ship 1 and Grab 2
On be equipped with the deep indicator of digging, dig deep indicator and connect with master control system, master control system is by the water level signal transmission of reception
To deep indicator is dug, to which ship can determine corresponding depth of dredging according to real time water level, meanwhile, also to be checked before going into operation
Deep indicator is dug, and carries out check record, to ensure accuracy of constructing；
To further ensure that the accuracy of waterlevel data, water gauge is set up near tidal level station, and school is carried out to tide gauge weekly
It tests, the accuracy of guaranteed water level data.
S2：Main construction area construction comprising：
When the seabed regions Dai Wa graduation is initiation layer and quality layers comprising：
S201：Rake inhales the navigation of ship 1 to main construction area 3, and the drag head 104 with dredging tube 103 is put to seabed, mud is passed through
The mutual cooperation effect of pump, drag head 104 and dredging tube 103 constructs to initiation layer, while mud is sucked rake and inhales 1 mud of ship
In storehouse；
S202：It after the completion of initiation layer construction, constructs to quality layers, while mud is sucked into rake and is inhaled in 1 hopper dredger of ship；
S203：After rake suction 1 hopper dredger of ship fills mud, drag head 104 is withdrawn from seabed, rake inhales the navigation of ship 1 to mud dumping area
Carry out dump, wherein in dump, its different dump mode of structure that ship 1 is inhaled according to rake is also different, is specifically divided into two kinds of knots
Structure：(1) 1 hopper dredger removal of ship is directly inhaled by rake, one end that rake inhales 1 hopper dredger of ship is equipped with hatch door, and in dump, hatch door is directly opened
Removal；(2) by sludge pipe removal, one end that rake inhales 1 hopper dredger of ship is connected with sludge pipe, and when dump, rake is inhaled in 1 hopper dredger of ship
Mud, which is voluntarily sucked out, carries out hydraulic reclamation；
S204：Rake, which is inhaled ship 1 and returned again to rake, after dump inhales 1 construction area of ship.
S205：Step S201~S204 is repeated, is cleaned out until rake is inhaled the mud in 1 construction area of ship；
Rake inhale ship 1 construction when be to carry out under sail, while boat while digs, rake inhale 1 hopper dredger of ship fill just sails for mud dumping area arrange
Mud, it is that self-propulsion type rake inhales ship 1 that the rake that the present invention selects, which inhales ship 1, and rake suction ship 1 does not have to anchor when constructing again or cable is moored surely, to boat
Row interference is small, therefore is highly suitable for the river at harbour or navigation, constructs in canal.
When the seabed regions Dai Wa only have quality layers comprising：
S201：Rake inhales the navigation of ship 1 to main construction area 3, and the drag head 104 with dredging tube 103 is put to seabed, mud is passed through
The mutual cooperation effect of pump, drag head 104 and dredging tube 103 constructs to quality layers, while mud is sucked rake and inhales 1 mud of ship
In storehouse；
S202：After rake suction 1 hopper dredger of ship fills mud, drag head 104 is withdrawn from seabed, rake inhales the navigation of ship 1 to mud dumping area
Carry out dump, wherein in dump, its different dump mode of structure that ship 1 is inhaled according to rake is also different, is specifically divided into two kinds of knots
Structure：(1) 1 hopper dredger removal of ship is directly inhaled by rake, one end that rake inhales 1 hopper dredger of ship is equipped with hatch door, and in dump, hatch door is directly opened
Removal；(2) by sludge pipe removal, one end that rake inhales 1 hopper dredger of ship is connected with sludge pipe, and when dump, rake is inhaled in 1 hopper dredger of ship
Mud, which is voluntarily sucked out, carries out hydraulic reclamation；
S203：Rake, which is inhaled ship 1 and returned again to rake, after dump inhales 1 construction area of ship.
S204：Step S201~S203 is repeated, is cleaned out until rake is inhaled the mud in 1 construction area of ship.
S3：It constructs in auxiliary construction region 4 comprising：
S301：The navigation of Grab 2 puts grab bucket 204 to seabed designated depth to auxiliary construction region 4, passes through grab bucket 204
It is inserted into mud layer to construct to initiation layer, and grab bucket 204 is lifted out by the water surface by crane 203 simultaneously, grab bucket 204 is made to circle round
To designated position by grab bucket 204 in silt particle removal；
S302：It after the completion of initiation layer construction, constructs to quality layers, and is simultaneously proposed grab bucket 204 by crane 203
Rise from the water surface, make grab bucket 204 convolution to designated position by grab bucket 204 in silt particle removal；
Grab 2 can be fixed by anchor chain 206, keep the region that Grab 2 cannot construct in rake suction ship 1 stable
Construction, wherein Grab 2 can adopt two kinds of structures of self-propulsion type or non-self-propulsion type, when Grab 2 is using self-propulsion type structure,
Grab 2 is equipped with 2 hopper dredger of Grab, and silt particle is discharged into 2 hopper dredger of Grab by grab bucket 204, after 2 hopper dredger of Grab is filled,
The navigation of Grab 2 to mud dumping area carries out dump, after removal, repeats step S301~S302, until by 2 construction area of Grab
Silt particle in domain cleans out；
When Grab 2 is using non-self-propulsion type structure, the side of Grab 2 is equipped with hopper, and silt particle is discharged into mud by grab bucket 204
In refuting, after hopper is filled, hopper navigates by water to mud dumping area and carries out dump, and after removal, hopper is back at Grab 2, weight
Multiple step S302, until the silt particle in 2 construction area of Grab is cleaned out.
The present invention is when dredging construction, in conjunction with the depth in the regions practical seabed Dai Wa, for serious region of partly back-silting,
When the depth h ＞ 2m in its seabed regions Dai Wa, the seabed regions Dai Wa are divided into initiation layer and quality layers, stage excavation need to be used
Mode is constructed.Initiation layer is excavated first, and it is 0~2m, then excavation quality layer to make the reserved depth of quality layers, convenient for quality layers
Excavation is completed in one place.The purpose is to reduce give up caused by ultra-deep of dredging in work progress using stage excavation by the present invention
Rear mud layer flatness is dredged in side, raising, further ensures that quality of dredging, reduction damage sea bed.
For not serious region of back-silting, when the depth h≤2m in the seabed regions Dai Wa, the seabed regions Dai Wa is made there was only matter
Layer is measured, when construction, directly quality layers are completed in one place.
The present invention inhales the form of construction work that ship 1 is used in combination with Grab 2 using rake, inhales ship 1 to main construction using rake first
Region 3 is constructed, and is constructed using Grab 2 close to the surrounding area of harbour.Rake inhales ship advantage and is that flexibility is strong, from
Boat construction period moors surely without anchor and cable, small to the periphery navigating ship interference for runing port area, but often because it is from boat
Characteristic is influenced by trend, wind-force etc., needs to keep certain peace with hydraulic structures such as harbour, breakwater in port area, navigation channel
Full distance cannot construct in the waters of narrow scope；And Grab is constructed by way of casting anchor and twisting anchor, anchor chain pair
The ship's navigation of near zone causes larger interference, and being avoided with the entering and leaving ports Gang Qu ship (needs anchor to move ship, consumption during evacuation
Duration), but excavated for wharf apron waters mud layer, Grab can be carried out by way of cable fixed quay bollard
Construction, in addition for excavation ability, the excavation ability and productivity of (such as hardened sand) Grab in the case that soil property is harder
It is much better than rake and inhales ship.Therefore, such form of construction work is made the best use of the advantages and is kept away by making full use of rake to inhale ship 1 and the respective advantage of Grab 2
It is short, the ship construction safety of ship 1 is inhaled to rake, shortens each ship and occupies the phase, reduce construction cost, while also subtracting to the full extent
The interference in the areas Shao Liaoduigang, other ships of navigation channel.
Work progress quality control of the present invention：Periodically or according to requirement of engineering, arrange to carry out water-depth measurement to construction area,
The depth of water is excavated to the mapping depth of water and plan to compare and analyze, and to the variance analysis reason of appearance, or finds out construction rule, so as to
Adjust construction method, technique, it is ensured that project progress and quality when excavation quality layer is constructed, will encrypt construction detection, survey data
It is directly inputted in the DGPS electronic charts of each ship, different color markings can be used in different water depth, and ship is according to shallow position
It sets and is accurately constructed using DGPS positioning systems, ensure construction quality.
In the construction process, under the coordinative construction that ship and Grab are inhaled by rake, it on the one hand ensure that rake inhales ship construction peace
On the other hand full property and construction efficiency shorten the occupancy phase that rake inhales ship, improve economic benefit, current specific embodiment is to this
Invention is described in detail,
Embodiment 1：
30 10,000 tons crude oil terminal basin of the areas Changxing Island Bei Gang, navigation channel, waters of berthing maintenance dredging engineering for into
Row analysis.30 10,000 tons crude oil terminal basin of the areas Changxing Island Bei Gang, navigation channel, waters of berthing maintenance dredging engineering be located at Liaoning
Changxing Island facing-port industry area of Daliang City of province.Total dredging area 240.07 ten thousand is flat, dredges bottom absolute altitude -25m, the waters present situation depth of water -21
170.2 ten thousand sides measure in~-30m or so, total dredging side；
Rake inhales ship and is combined construction, Grab construction established wharf front region construction with Grab, and rake inhales ship to outport
It constructs in remaining region of pond.Since soil property is complex in construction area, mud, clay, fine sand and medium coarse sand all exist, part
The more difficult construction in region, rake suction ship inevitably leave subregion in construction period and excavate situation not in place, when rake inhales ship by big portion
Subregion is dredged and is finished substantially, when the shallow area of remaining fraction, it is contemplated that reduces rake and inhales ship occupying the phase, arrange code of having constructed at this time
The Grab of head front porch area carries out remaining shallow area and sweeps shallow construction, considerably reduces construction cost；
It is calculated through project management department, rake suction ship construction moon cost is higher, and the estimation engineering construction later stage, remaining shallow area continued using in advance
Meter is completed to sweep shallow for 15 days, can more precisely carry out sweeping shallow construction using Grab, the Grab moon cost it is relatively low, plan one month
Completion sweep it is shallow, to save about 4,000,000 yuan of cost.
If only Grab is constructed, this engineering is constructed using multigroup Grab simultaneously, and superficial surface is swept according to daily completion
Product 10,000 is flat come if planning, single group Grab needs 240 days to complete construction, cannot be satisfied owner's construction period.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, under the premise of not departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (8)
1. a kind of maintenance dredging construction technology, it is characterised in that：Include the following steps：
S1：Preparation of construction comprising：
S101：Determine construction area, and it is main construction area and auxiliary construction region that construction area, which is divided, wherein main construction
Region inhales ship using rake and constructs, and auxiliary construction region is to be constructed using Grab close to dock area；
S102：Determine that seabed region division to be dug is first as the depth h ＞ 2m in the seabed regions Dai Wa by depth of dredging
Beginning layer and quality layers, the initial horizon is on quality layers；
As the depth h≤2m in the seabed regions Dai Wa, the seabed Dai Wa only has quality layers in region；
S2：Main construction area construction comprising：
When the seabed is when it is initiation layer and quality layers to dig region division comprising：
S201：Rake inhale ship navigate by water to main construction area, the drag head with dredging tube is put to seabed, by dredge pump, drag head and
The mutual cooperation effect of dredging tube constructs to initiation layer, while mud is sucked rake and is inhaled in ship hopper dredger；
S202：It after the completion of initiation layer construction, constructs to quality layers, while mud is sucked into rake and is inhaled in ship hopper dredger；
S203：After rake suction ship hopper dredger fills mud, drag head is withdrawn from seabed, rake suction ship, which is navigated by water to mud dumping area, carries out dump；
S204：Rake, which is inhaled ship and returned again to rake, after dump inhales ship construction area.
S205：Step S201~S204 is repeated, is cleaned out until rake is inhaled the mud in ship construction area；
When the regions the seabed Dai Wa only have quality layers comprising：
S201：Rake inhale ship navigate by water to main construction area, the drag head with dredging tube is put to seabed, by dredge pump, drag head and
The mutual cooperation effect of dredging tube constructs to quality layers, while mud is sucked rake and is inhaled in ship hopper dredger；
S202：After rake suction ship hopper dredger fills mud, drag head is withdrawn from seabed, rake suction ship, which is navigated by water to mud dumping area, carries out dump；
S203：Rake, which is inhaled ship and returned again to rake, after dump inhales ship construction area.
S204：Step S201~S203 is repeated, is cleaned out until rake is inhaled the mud in ship construction area；
S3：It constructs in auxiliary construction region comprising：
S301：Grab is navigated by water to auxiliary construction region, and grab bucket is put to seabed designated depth, and mud layer is inserted into first by grab bucket
Beginning layer is constructed, and grab bucket is lifted out the water surface by crane simultaneously, and so that grab bucket is circled round will be in grab bucket to designated position
Silt particle removal；
S302：After the completion of initiation layer construction, construct to quality layers, and grab bucket is lifted out by the water surface by crane simultaneously,
Grab bucket is set to circle round the silt particle removal in grab bucket to designated position.
2. maintenance dredging construction technology according to claim 1, it is characterised in that：In step S101, the rake inhales ship
With DGPS positioning systems are equipped on Grab, each DGPS positioning systems are correspondingly connected with master control system.
3. maintenance dredging construction technology according to claim 2, it is characterised in that：In step S101, construction area is true
Periodically, determining respective boundary of works area data are inputted in the master control system according to design drawing first, and passes through master control
System processed carries out construction area control to corresponding construction equipment.
4. maintenance dredging construction technology according to claim 2, it is characterised in that：The rake is inhaled on ship and Grab
Equipped with deep indicator is dug, the deep indicator of the digging is connect with the master control system.
5. maintenance dredging construction technology according to claim 1, it is characterised in that：In step S3, on the Grab
Equipped with Grab hopper dredger, silt particle is discharged into Grab hopper dredger by the grab bucket, after Grab hopper dredger is filled, Grab navigate by water to
Mud dumping area carries out dump.
6. maintenance dredging construction technology according to claim 4, it is characterised in that：After removal, step is repeated
S301~S302, until the silt particle in Grab construction area is cleaned out.
7. maintenance dredging construction technology according to claim 1, it is characterised in that：In step S3, the Grab
Side is equipped with hopper, and silt particle is discharged into hopper by the grab bucket, and after hopper is filled, hopper navigates by water to mud dumping area and carries out dump.
8. maintenance dredging construction technology according to claim 6, it is characterised in that：After removal, hopper is back to
At Grab, step S302 is repeated, until the silt particle in Grab construction area is cleaned out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299085.6A CN108547341A (en) | 2018-04-04 | 2018-04-04 | Maintenance dredging construction technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299085.6A CN108547341A (en) | 2018-04-04 | 2018-04-04 | Maintenance dredging construction technology |
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| CN108547341A true CN108547341A (en) | 2018-09-18 |
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ID=63513957
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492179A (en) * | 2022-10-11 | 2022-12-20 | 中交广州航道局有限公司 | Navigation sealing and dredging construction method under complex navigation environment |
| CN116219960A (en) * | 2023-02-17 | 2023-06-06 | 上海港湾基础建设（集团）股份有限公司 | Green island building process |
-
2018
- 2018-04-04 CN CN201810299085.6A patent/CN108547341A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492179A (en) * | 2022-10-11 | 2022-12-20 | 中交广州航道局有限公司 | Navigation sealing and dredging construction method under complex navigation environment |
| CN116219960A (en) * | 2023-02-17 | 2023-06-06 | 上海港湾基础建设（集团）股份有限公司 | Green island building process |
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