CN111648309B - Construction method for blowing and filling sandy soil by additionally installing sand hopper cutter suction ship - Google Patents
Construction method for blowing and filling sandy soil by additionally installing sand hopper cutter suction ship Download PDFInfo
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- CN111648309B CN111648309B CN202010500558.1A CN202010500558A CN111648309B CN 111648309 B CN111648309 B CN 111648309B CN 202010500558 A CN202010500558 A CN 202010500558A CN 111648309 B CN111648309 B CN 111648309B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/18—Reclamation of land from water or marshes
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- 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
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Abstract
The invention belongs to the technical field of dredging and hydraulic filling construction, and relates to a hydraulic filling construction method of an additive sand bucket cutter suction ship. Its advantage lies in, will install sand hopper device hank and inhale the ship and carry out boats and ships and stay the position back and can cooperate for a long time and supply the sand ship to be under construction, need not frequently remove and install sand hopper device hank and inhale the ship position of ship additional, under the circumstances that the filler supply volume is sufficient is blown in the assurance, keeps installing sand hopper device hank additional and inhales the stable high-efficient operation of ship to reinforcing efficiency of construction and quality.
Description
Technical Field
The invention belongs to the technical field of dredging and hydraulic filling construction, and relates to a construction method for hydraulic filling sandy soil by additionally arranging a sand hopper suction dredger.
Background
With the continuous development of national economy, the selectable travel modes of people are diversified, the civil aviation passenger transport capacity is continuously increased, airport reconstruction and expansion projects are remarkably increased, the third runway project of the hong Kong international airport is that the land is built by about 650 ten thousand square meters in the north of the existing airport island, the mud content of the sand for the land is required to be lower than 20%, the sand source has sea sand and machine-made sand, and the sand is supplied to a sand source land by a belt sand dredger to be conveyed to a project site.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a construction method for blowing and filling sandy soil by an additionally-installed sand hopper winch, the sand hopper device winch can be matched with a sand supply ship for a long time for construction after the sand hopper device winch is adopted to park the ship, the ship position of the sand hopper device winch is not required to be frequently moved, and the sand hopper device winch is kept to stably and efficiently operate under the condition of ensuring sufficient blowing and filling supply, so that the construction efficiency and quality are enhanced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a construction method for filling sandy soil by additionally installing a sand hopper cutter-suction ship comprises the following steps:
s1: the cutter suction ship enters a point and is parked, the cutter suction ship is towed to a construction point by a towing ship, an anchor boat is used for assisting the cutter suction ship to lower a stern anchor, and then a left anchor chain and a right anchor chain are lowered, so that the ship is parked;
s2: the sand supply ship is parked in a berthing position, the sand supply ship runs in the direction of the positive pair of cutter suction ships and is close to the cutter suction ship, when the sand supply ship moves to a position at a first distance from the cutter suction ship, a cable rope, a left anchor chain and a right anchor chain of the sand supply ship are slowly released, the sand supply ship moves to enable the sand supply ship to slowly approach the cutter suction ship, the sand supply ship stops sailing at a second distance from the cutter suction ship, and at the moment, the sand supply ship stops releasing the cable rope;
s3: aligning the sand supply ship and the cutter suction ship, adjusting the ship position, discharging a sanding belt frame provided with a sand guide pipe on the sand supply ship, aligning a discharge port of the sanding belt frame with a sand hopper of the cutter suction ship, enabling the sand guide pipe to be positioned on the upper part of the sand hopper at the front end of the cutter suction ship, informing the cutter suction ship of finishing the preparation work after finishing the completion of the preparation work, and then performing sand discharging operation according to an instruction of the cutter suction ship;
s4: the sand supply ship supplies sand to a sand hopper of the cutter suction ship, the cutter suction ship starts to carry out hydraulic fill construction, and when the sand supply ship finishes sand cleaning and supply, the cutter suction ship withdraws;
s5: and repeating the steps S2-S4 to finish the construction.
Furthermore, a sand barge is further arranged between the sand supply ship and the cutter suction ship, the sand supply ship is aligned with the sand barge, the sand barge is aligned with the cutter suction ship, and a plurality of cabins used for storing sand materials of the sand supply ship are arranged on the sand barge so that the cabins on the sand barge can sequentially supply sand to the cutter suction ship.
Further, in step S1: the left front anchor and the right front anchor of the cutter suction ship form a first included angle with the side body of the cutter suction ship body, and the tail anchor forms a second included angle with the side body of the cutter suction ship body.
Further, step S1 further includes the following steps:
S1A: before the cutter suction ship is positioned and positioned at a fixed point, positioning and checking the cutter suction ship;
S1B: laying a sludge discharge pipeline of the cutter suction dredger;
S1C: and leading the construction drawing into a ship system of the cutter suction dredger.
Further, step S1A further includes the following steps:
S1A 1: before positioning and checking, the bridge frame front end structure, the reamer and the driving system of the cutter suction ship are disassembled;
S1A 2: installing a sand hopper device, and pumping sand in the sand hopper to a designated area through a mud pump system;
S1A 3: arranging a sand gate device at the lower part of the sand hopper device, arranging a hydraulic cylinder for controlling the sand gate on a platform above the water surface, arranging a sand suction pipe and a water diversion pipe with an adjusting valve at the bottom of the sand hopper device, arranging a high-pressure flushing pipe in the sand hopper, and arranging an emergency water replenishing port at the upper part of the sand hopper;
S1A 4: the base of the bridge frame lifting pulley block and the transverse pulley are rearranged and equipped on the sand hopper device, and the original ship lifting pulley block is used.
Further, in step S2: and in the process that the sand supply ship approaches the cutter suction ship to the first distance, the ship speed of the sand supply ship is lower than 2 nautical miles per hour, and the course of the sand supply ship is adjusted to enable the bow of the sand supply ship to be overlapped with the bow of the cutter suction ship.
Further, step S2 further includes the following steps:
S2A; firstly, putting down a left front anchor and a right anchor of a bow of a sand supply ship so that the left front anchor and the right front anchor form an inverted splayed anchor;
S2B; then the direction of the bow of the sand supply ship is adjusted again, so that the bow of the sand supply ship is overlapped with the bow of the cutter suction ship again;
S2C: and shortening the anchor chain, keeping timing acceleration, and ensuring that the left front anchor and the right front anchor are firmly grabbed.
Further, step S3 further includes the following steps:
S3A: before the sand supply ship starts to discharge sand, the cutter suction ship performs regular water blowing operation in advance;
S3B: and after the water blowing operation is finished, sand discharging and sand blowing operations are started.
Further, in step S4: after the sand supply of the sand supply ship is finished, the cutter suction ship continues to blow water, and residual sand and stone materials in the mud pump and the mud discharge pipeline are removed.
Further, step S4 further includes the following steps:
S4A: after the sand supply ship finishes cleaning and sanding, the cutter suction ship is communicated with the cutter suction ship through radio waves and is informed;
S4B: after the evacuation agreement is obtained, the water flow and wind speed conditions of the water area are checked;
S4C: and confirming whether the evacuation condition is met or not, wherein the evacuation condition is met for the sand boats to evacuate.
The invention has the beneficial effects that:
according to the invention, after the cutter suction ship with the sand hopper device is used for carrying out ship parking, the cutter suction ship can be matched with a sand supply ship for a long time for construction, the ship position does not need to be frequently moved, and stable and efficient operation can be kept under the condition of sufficient blowing and filling material supply, so that the construction quality is improved; by using the cutter suction dredger provided with the sand hopper device to replace a cutter suction dredger, on one hand, the cost caused by the operation of a cutter suction system of the cutter suction dredger can be saved; on the other hand, the cost caused by oil consumption of reamer driving, transverse moving driving, crane span structure lifting and steel pile trolley use can be prevented, and therefore the construction cost is reduced.
Drawings
FIG. 1 is a flow chart of a construction process of a cutter suction dredger provided with a sand hopper device;
FIG. 2 is a flow chart of the cutter-suction dredger of the present invention when it is anchored and positioned;
FIG. 3 is a flow chart of the present invention for a sand carrier to moor, winch and suck a sand carrier;
FIG. 4 is a flow chart of the present invention for a sand barge to pass through a sand barge;
FIG. 5 is a flow chart of the sand supply, cutter suction and sand supply of the sand supply ship;
FIG. 6 is a flow chart of the sand feeding, cutter sucking and transporting ship of the present invention;
FIG. 7 is a flow chart of the sand supply and sand passing barge of the sand supply vessel;
FIG. 8 is a flow chart of the present invention when the sand supply vessel finishes the evacuation of the sand supply cutter suction vessel;
FIG. 9 is a flow chart of the invention when the sand-passing barge finishes the evacuation of the sand supply winch-suction ship;
FIG. 10 is a flow chart of the sand supply ship for ending the sand supply, sand passing and refuting evacuation;
fig. 11 is a schematic plan view of the mooring line of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The embodiment relates to a construction method for filling sandy soil by additionally arranging a sand hopper cutter suction ship, which comprises the following steps:
s1: the winch-suction ship is pulled to a construction point by a tugboat, an anchor boat is used for assisting the winch-suction ship to lower a stern anchor, then a left anchor chain and a right anchor chain are lowered to enable the ship to stay at the position, when the left anchor chain and the right anchor chain are lowered, the left anchor chain is dragged to be displaced to the lower position of the left front anchor by the anchor boat, the left front anchor is lowered, a cable is lowered, the right anchor chain is dragged to be displaced to the lower position of the right front anchor by the anchor boat, the right front anchor is lowered, the cable and the left and right anchor chains are retracted, and the winch-suction ship is retracted and fixed after the position of the winch-suction ship is adjusted;
s2: the method comprises the steps that a sand supply ship is parked in a berthing position, the sand supply ship runs in the direction of a cutter suction ship and is close to the cutter suction ship, the sand supply ship is in radio wave connection with the cutter suction ship at the berthing position of the sand supply ship, the ship speed of the sand supply ship is reduced, the moving direction of the sand supply ship is adjusted to enable the sand supply ship to slowly approach the cutter suction ship, when the sand supply ship moves to the first distance position of the cutter suction ship, a cable, a left anchor chain and a right anchor chain of the sand supply ship are slowly lowered, the sand supply ship is moved to enable the sand supply ship to slowly approach the cutter suction ship, the sand supply ship stops navigating at a second distance from the cutter suction ship, the lowering of the cable is stopped, in the process that the sand supply ship approaches the cutter suction ship and reaches the first distance, the ship speed of the sand supply ship is lower than 2 miles per hour, and the course of the sand supply ship is adjusted so that the ship head of the sand supply ship is overlapped with the ship head of the cutter suction ship, wherein in the first distance is 200m and the second distance is 30 m;
s3: aligning the sand supply ship and the cutter suction ship, adjusting the ship position, discharging a sanding belt frame provided with a sand guide pipe on the sand supply ship, aligning a discharge port of the sanding belt frame with a sand hopper of the cutter suction ship, enabling the sand guide pipe to be positioned on the upper part of the sand hopper at the front end of the cutter suction ship, informing the cutter suction ship of finishing the preparation work after the completion of the preparation work, and then performing sand discharging operation according to an instruction of the cutter suction ship;
s4: the sand supply ship supplies sand to a sand hopper of the cutter suction ship, the cutter suction ship starts to carry out hydraulic fill construction, after the sand supply ship finishes sand cleaning and supply, the sand supply ship withdraws, in the withdrawal process, the sand supply ship withdraws the sanding belt frame, the main machine of the sand supply ship backs up, simultaneously slowly withdraws the mooring rope and the anchor chain, when the distance between the sand supply ship and the cutter suction ship reaches a first distance position, the sand supply ship respectively lifts the left front anchor and the right front anchor, then the sand supply ship adjusts the course, keeps a safe distance with the cutter suction ship and slowly turns around, and then the sand supply ship slowly drives away from a construction water area;
s5: and repeating the steps S2-S4 to finish the construction.
In the above embodiment, when the cutter suction dredger enters the parking position, the left front anchor and the right front anchor of the cutter suction dredger and the side body of the cutter suction dredger body form a first included angle, and the tail anchor and the side body of the cutter suction dredger body form a second included angle, in this embodiment, the first included angle is 130 degrees, the second included angle is 15 degrees, the distance between the left front anchor and the right front anchor and the distance between the cutter suction dredger and the dredger body are 40m, and the distance between the tail anchor and the cutter suction dredger body is 100 m.
In the above embodiment, step S1 further includes the following steps:
S1A: before the cutter suction ship is positioned and located, positioning and checking are carried out on the cutter suction ship, and in the step, the cutter suction ship is positioned and checked through DGPS;
S1B: laying a sludge discharge pipeline of the cutter suction dredger;
S1C: and leading the construction drawing into a ship system of the cutter suction dredger.
In the above embodiment, the step S1A further includes the following steps:
S1A 1: before positioning and checking, the bridge frame front end structure, the reamer and the driving system of the cutter suction ship are disassembled;
S1A 2: installing a sand hopper device, and pumping sand in the sand hopper to a designated area through a mud pump system;
S1A 3: the lower part of the sand hopper device is provided with a sand door device, a hydraulic cylinder for controlling the sand door is arranged on a platform above the water surface, the bottom of the sand hopper device is provided with a sand suction pipe and a water diversion pipe with an adjusting valve, a high-pressure flushing pipe is arranged in the sand hopper, and the upper part of the sand hopper is provided with an emergency water replenishing port;
S1A 4: the base of the bridge frame lifting pulley block and the transverse pulley are rearranged and equipped on the sand hopper device, and the original ship lifting pulley block is used.
In the above embodiment, step S2 further includes the following steps:
S2A; firstly, putting down a left front anchor and a right anchor of a bow of a sand supply ship so that the left front anchor and the right front anchor form an inverted splayed anchor;
S2B; then the direction of the bow of the sand supply ship is adjusted again, so that the bow of the sand supply ship is overlapped with the bow of the cutter suction ship again;
S2C: and shortening the anchor chain, keeping timing acceleration, and ensuring that the front left anchor and the front right anchor are firmly grabbed, wherein in the embodiment, the acceleration time is 3-5 minutes, and the acceleration speed is determined according to specific conditions.
In the above embodiment, step S3 further includes the following steps:
S3A: before the sand supply ship starts to discharge sand, the cutter suction ship performs regular water blowing operation in advance;
S3B: and after the water blowing operation is finished, sand discharging and sand blowing operations are started.
In the above embodiment, in step S4: after the sand supply of the sand supply ship is finished, the cutter suction ship continues to blow water, and residual sand and stone materials in the mud pump and the mud discharge pipeline are removed.
In the above embodiment, step S4 further includes the following steps:
S4A: after the sand supply ship finishes cleaning and sanding, the cutter suction ship is communicated with the cutter suction ship through radio waves and is informed;
S4B: after the evacuation agreement is obtained, the water flow and wind speed conditions of the water area are checked;
S4C: and confirming whether the evacuation condition is met or not, wherein the evacuation condition is met for the sand boats to evacuate.
In embodiment 2, a sand hopper is further arranged between the sand supply ship and the cutter suction ship, the sand supply ship is aligned with the sand hopper, the sand hopper is aligned with the cutter suction ship, and a plurality of cabins for storing sand materials of the sand supply ship are arranged on the sand hopper, so that the cabins on the sand hopper can sequentially supply sand to the cutter suction ship;
the berthing and parking position is different from that of the embodiment 1, firstly, the sand-passing barge is parked, the sand-passing barge is in radio wave communication with the cutter suction dredger, the speed of the sand-passing barge is reduced, the moving direction of the sand-passing barge is adjusted to enable the sand-passing barge to slowly approach the cutter suction dredger, when the sand-passing barge moves the cutter suction dredger at a first distance, a cable, a left anchor chain and a right anchor chain of the sand-passing barge are slowly lowered, and the sand-passing barge is moved to enable the sand-passing barge to slowly approach the cutter suction dredger so that the sand-passing barge stops sailing at a second distance from the cutter suction dredger, and at the moment, the sand-passing barge stops lowering the cable; the sand supply ship is berthed and positioned, the sand supply ship and the sand-passing barge are in radio wave communication, the ship speed of the sand supply ship is reduced, the moving direction of the sand supply ship is adjusted to enable the sand supply ship to slowly approach the sand-passing barge, when the sand supply ship moves to a first distance of the sand-passing barge, a cable, a left anchor chain and a right anchor chain of the sand supply ship are slowly lowered, the sand supply ship moves to enable the sand supply ship to slowly approach the sand-passing barge so that the sand supply ship stops sailing at a second distance from the sand-passing barge, and the sand supply ship stops lowering the cable at the moment; in the process that the sand supply ship approaches the sand barge to reach the first distance, the ship speed of the sand supply ship is lower than 2 nautical miles per hour, and the course of the sand supply ship is adjusted to enable the bow of the sand supply ship to be overlapped with the bow of the sand barge;
the difference between the sand receiving process and the sand passing barge in the embodiment 1 is that the sand supplying ship is aligned with the sand passing barge, the sand supplying ship is discharged out of the sanding belt frame provided with the sand guide pipe, a discharge hole of the sanding belt frame is aligned with a cabin of the sand passing barge, the sand passing barge preparation work is informed to be completed after the completion of the sand passing barge preparation work, and then the sand discharging operation is carried out according to the sand passing barge instruction; then aligning the sanding barge with the cutter suction ship, discharging the sanding barge to a sanding belt frame provided with a sand guide pipe, aligning a discharge port of the sanding belt frame with a sand hopper of the cutter suction ship and locating on the upper part of the sand hopper at the front end of the cutter suction ship, informing the cutter suction ship of finishing the preparation work after finishing the completion of the preparation work, and then carrying out sanding operation according to an instruction of the cutter suction ship;
in this embodiment, the sand-passing barge is provided with two cabin bodies, the sand-passing barge firstly passes sand to a first cabin body of the sand-passing barge, passes sand to a second cabin body of the sand-passing barge after the cabin is full, and simultaneously the first cabin body of the sand-passing barge supplies sand to the cutter suction dredger. And after the sand material of the first cabin body of the sand filter barge is filled, continuously filtering the sand of the first cabin body of the sand filter barge, supplying sand to the cutter suction ship by the second cabin body of the sand filter barge at the moment, and repeating the steps so as to keep the continuous construction of the cutter suction ship.
The difference of the sand supply finishing evacuation process and the embodiment 1 is that a sand supply ship firstly withdraws a sanding belt frame, a main machine of the sand supply ship backs, and meanwhile, a cable rope and an anchor chain are slowly withdrawn, when the distance between the sand supply ship and a sand passing barge is a first distance, the sand supply ship respectively lifts a left front anchor and a right front anchor, and the sand supply ship adjusts the course, keeps a safe distance with a cutter suction ship and slowly turns around, and slowly drives away from a construction water area; then the sanding belt frame is retracted by the sanding barge, a main machine of the sanding barge backs up, a cable rope and an anchor chain are slowly retracted, the sanding barge respectively lifts a left front anchor and a right front anchor when the sanding barge is at a first distance from the winch-suction vessel, then the heading of the sanding barge is adjusted, the sanding barge keeps a safe distance from the winch-suction vessel and slowly turns around, and then the sanding barge slowly drives away from a construction water area;
the above-described embodiments are only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (6)
1. A construction method for filling sandy soil by additionally installing a sand hopper cutter-suction ship is characterized by comprising the following steps:
s1: the cutter suction ship enters a point and is parked, the cutter suction ship is towed to a construction point by a towing ship, an anchor boat is used for assisting the cutter suction ship to lower a stern anchor, and then a left anchor chain and a right anchor chain are lowered, so that the ship is parked;
s2: the sand supply ship is parked in a berthing position, the sand supply ship runs in the direction of the positive pair of cutter suction ships and is close to the cutter suction ship, when the sand supply ship moves to a position at a first distance from the cutter suction ship, a cable rope, a left anchor chain and a right anchor chain of the sand supply ship are slowly released, the sand supply ship moves to enable the sand supply ship to slowly approach the cutter suction ship, the sand supply ship stops sailing at a second distance from the cutter suction ship, and at the moment, the sand supply ship stops releasing the cable rope;
s3: aligning the sand supply ship and the cutter suction ship, adjusting the ship position, discharging a sanding belt frame provided with a sand guide pipe on the sand supply ship, aligning a discharge port of the sanding belt frame with a sand hopper of the cutter suction ship, enabling the sand guide pipe to be positioned on the upper part of the sand hopper at the front end of the cutter suction ship, informing the cutter suction ship of finishing the preparation work after finishing the completion of the preparation work, and then performing sand discharging operation according to an instruction of the cutter suction ship;
s4: the sand supply ship supplies sand to a sand hopper of the cutter suction ship, the cutter suction ship starts to carry out hydraulic fill construction, and when the sand supply ship finishes sand cleaning and supply, the cutter suction ship withdraws;
s5: repeating the steps S2-S4 to finish the construction;
in step S1: a left front anchor and a right front anchor of the cutter suction dredger form a first included angle with a side body of the cutter suction dredger body, and a tail anchor forms a second included angle with the side body of the cutter suction dredger body;
step S1 further includes the steps of:
S1A: before the cutter suction ship is positioned and positioned at a fixed point, positioning and checking the cutter suction ship;
S1B: laying a sludge discharge pipeline of the cutter suction dredger;
S1C: leading the construction drawing into a ship system of the cutter suction ship;
step S1A further includes the steps of:
S1A 1: before positioning and checking, the bridge frame front end structure, the reamer and the driving system of the cutter suction ship are disassembled;
S1A 2: installing a sand hopper device, and pumping sand in the sand hopper to a designated area through a mud pump system;
S1A 3: arranging a sand gate device at the lower part of the sand hopper device, arranging a hydraulic cylinder for controlling the sand gate on a platform above the water surface, arranging a sand suction pipe and a water diversion pipe with an adjusting valve at the bottom of the sand hopper device, arranging a high-pressure flushing pipe in the sand hopper, and arranging an emergency water replenishing port at the upper part of the sand hopper;
S1A 4: a bridge frame lifting pulley block base and a transverse pulley are rearranged and equipped on the sand hopper device, and an original ship lifting pulley block is used;
the sand supply ship is connected with the cutter suction ship through a sand filter, the sand filter is connected with the cutter suction ship through a sand filter, and the sand filter is connected with the cutter suction ship through a sand filter.
2. The construction method for dredger-filling sandy soil with the sand hopper cutter-suction dredger as claimed in claim 1, wherein in step S2: and in the process that the sand supply ship approaches the cutter suction ship to the first distance, the ship speed of the sand supply ship is lower than 2 nautical miles per hour, and the course of the sand supply ship is adjusted to enable the bow of the sand supply ship to be overlapped with the bow of the cutter suction ship.
3. The construction method for dredger-filling sandy soil by adding the sand hopper cutter-suction ship as claimed in claim 2, wherein the step S2 further comprises the following steps:
S2A; firstly, putting down a left front anchor and a right anchor of a bow of a sand supply ship so that the left front anchor and the right front anchor form an inverted splayed anchor;
S2B; then the direction of the bow of the sand supply ship is adjusted again, so that the bow of the sand supply ship is overlapped with the bow of the cutter suction ship again;
S2C: and shortening the anchor chain, keeping timing acceleration, and ensuring that the left front anchor and the right front anchor are firmly grabbed.
4. The construction method for dredger-filling sandy soil with the sand hopper cutter-suction dredger as claimed in claim 3, wherein the step S3 further comprises the steps of:
S3A: before the sand supply ship starts to discharge sand, the cutter suction ship performs regular water blowing operation in advance;
S3B: and after the water blowing operation is finished, sand discharging and sand blowing operations are started.
5. The construction method for dredger-filling sandy soil with the sand hopper cutter-suction dredger as claimed in claim 4, wherein in step S4: after the sand supply of the sand supply ship is finished, the cutter suction ship continues to blow water, and residual sand and stone materials in the mud pump and the mud discharge pipeline are removed.
6. The construction method for dredger-filling sandy soil with the sand hopper cutter-suction dredger as claimed in claim 5, wherein the step S4 further comprises the steps of:
S4A: after the sand supply ship finishes cleaning and sanding, the cutter suction ship is communicated with the cutter suction ship through radio waves and is informed;
S4B: after the evacuation agreement is obtained, the water flow and wind speed conditions of the water area are checked;
S4C: and confirming whether the evacuation condition is met or not, wherein the evacuation condition is met for the sand boats to evacuate.
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| CN202010500558.1A CN111648309B (en) | 2020-06-04 | 2020-06-04 | Construction method for blowing and filling sandy soil by additionally installing sand hopper cutter suction ship |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4437244A (en) * | 1981-09-17 | 1984-03-20 | Ihc Holland N.V. | Method for sucking up soil or sludge by means of a suction hopper dredge as well as a suction dredge for applying the method |
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| CN110629734A (en) * | 2019-08-09 | 2019-12-31 | 中交广州航道局有限公司 | Hydraulic reclamation operation system and hydraulic reclamation operation method |
| CN210636380U (en) * | 2019-08-09 | 2020-05-29 | 中交广州航道局有限公司 | Wharf boat for hydraulic reclamation operation |
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2020
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| US4437244A (en) * | 1981-09-17 | 1984-03-20 | Ihc Holland N.V. | Method for sucking up soil or sludge by means of a suction hopper dredge as well as a suction dredge for applying the method |
| CN104846787A (en) * | 2015-04-01 | 2015-08-19 | 广西建工集团第五建筑工程有限责任公司 | Construction method for carrying out sand-blowing sea-filling land-making in shallow sea area by using cutter suction dredger |
| CN208917783U (en) * | 2018-08-24 | 2019-05-31 | 长江武汉航道工程局 | Scoop pump sand ship dredge fill system |
| CN109098221A (en) * | 2018-10-10 | 2018-12-28 | 中交天津航道局有限公司 | A kind of dedicated sand water mixing device of ship dredging construction |
| CN109183801A (en) * | 2018-10-10 | 2019-01-11 | 中交天津航道局有限公司 | A kind of waterpower mixing sand delivering system of environmental protection |
| CN110629734A (en) * | 2019-08-09 | 2019-12-31 | 中交广州航道局有限公司 | Hydraulic reclamation operation system and hydraulic reclamation operation method |
| CN210636380U (en) * | 2019-08-09 | 2020-05-29 | 中交广州航道局有限公司 | Wharf boat for hydraulic reclamation operation |
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| CN111648309A (en) | 2020-09-11 |
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