CN115162259A - Mobile underwater layered hydraulic reclamation construction indoor simulation device - Google Patents

Mobile underwater layered hydraulic reclamation construction indoor simulation device Download PDF

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Publication number
CN115162259A
CN115162259A CN202210623590.8A CN202210623590A CN115162259A CN 115162259 A CN115162259 A CN 115162259A CN 202210623590 A CN202210623590 A CN 202210623590A CN 115162259 A CN115162259 A CN 115162259A
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water
hydraulic reclamation
test
water tank
slurry
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CN115162259B (en
Inventor
郝宇驰
孙慧
陈沁泽
张晴波
李盼盼
陶润礼
吕行行
王盛
齐健璋
严晓威
曲嘉铭
朱平
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CCCC National Engineering Research Center of Dredging Technology and Equipment Co Ltd
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CCCC National Engineering Research Center of Dredging Technology and Equipment Co Ltd
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Priority to CN202310231733.5A priority Critical patent/CN116516883A/en
Priority to CN202310227789.3A priority patent/CN116575386A/en
Priority to CN202210623590.8A priority patent/CN115162259B/en
Publication of CN115162259A publication Critical patent/CN115162259A/en
Priority to PCT/CN2023/086828 priority patent/WO2023231570A1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
    • E02B1/02—Hydraulic models
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Abstract

The invention belongs to the field of indoor simulation tests of hydraulic reclamation construction. A movable indoor simulation device for underwater layered hydraulic reclamation construction is characterized by comprising a slurry storage system, a layered hydraulic reclamation device, a construction environment simulation system and a measurement system. The mobile indoor simulation device for the underwater layered hydraulic reclamation construction can fully simulate an underwater mobile hydraulic reclamation construction mode in an open sea area by integrating a plurality of specially-made subsystems.

Description

Mobile underwater layered hydraulic reclamation construction indoor simulation device
Technical Field
The invention belongs to the field of indoor simulation tests of hydraulic reclamation construction.
Background
With the rapid development of dredging and hydraulic filling engineering, the requirements and the limitations on the construction conditions of the dredging and hydraulic filling engineering are continuously increased, and the defects of poor backfill flatness and difficult subsequent foundation treatment caused by the fact that the existing domestic common direct hydraulic filling construction method does not consider the difference of hydraulic filling soil quality, and the hydraulic filling is carried out on rough self-fixed points and then is gradually advanced cannot meet the requirements on refined control, high efficiency and environment-friendly dredging of hydraulic filling construction. Aiming at the defects, the layered hydraulic reclamation construction method designs the paving thickness of each layer according to the engineering hydraulic reclamation requirement and the sand source characteristic, and utilizes the configured layered hydraulic reclamation device to carry out accurate control so as to achieve the aim of accurately paving the hydraulic reclamation material layer by layer to the preset construction position of the water bottom. However, the method is only applied to projects with good construction conditions at present due to the complex construction process, and the existing hydraulic filling construction experience and technology are not enough to meet the requirement of fine control of layered hydraulic filling construction under the conditions for open sea areas with complex hydrological and meteorological environment conditions such as large water depth and influence of wind and waves. How to control and realize high-precision layered hydraulic filling construction still needs further systematic research. The mobile indoor simulation device and the test method for underwater layered hydraulic reclamation construction provided by the invention can accurately simulate the actual mobile layered hydraulic reclamation construction mode and effect, have strong operability and diversified adjustment, and provide an effective means for deeply researching a high-precision layered hydraulic reclamation technology and improving the construction efficiency and the management quality.
The search of the existing indoor simulation hydraulic reclamation technology discovers that aiming at the research requirements of the underwater movable hydraulic reclamation construction process in open sea area influenced by the hydrological meteorological environments such as stormy waves and currents, the existing hydraulic reclamation construction simulation test device and test method generally have the defects of directional fixed-point hydraulic reclamation, incapability of simulating the stormy waves and currents construction environment, incapability of effectively guaranteeing the mixing uniformity of conveyed mud and the like, and can not meet the requirements of fine control simulation of movable layered hydraulic reclamation.
Disclosure of Invention
The invention aims to disclose a mobile indoor simulation device for underwater layered hydraulic reclamation construction, which comprises a mud storage system, a layered hydraulic reclamation device and a construction environment simulation system, so as to respectively construct the mobile indoor simulation device for underwater layered hydraulic reclamation construction in a matched manner.
Furthermore, the invention aims to provide a movable indoor simulation device for underwater layered hydraulic reclamation construction, which can fully simulate an actual movable layered hydraulic reclamation construction mode.
Further, the invention aims to provide an intelligent simulation test system in a movable underwater layered hydraulic reclamation construction room.
Further, the invention aims to provide an intelligent simulation test method for a movable underwater layered hydraulic reclamation construction chamber. The invention can fully simulate the actual movable layered hydraulic reclamation construction mode, can carry out diversified adjustment on the construction environment factors such as stormy waves, currents, water depth and the like and key construction parameters such as the movement speed of the hydraulic reclamation device, the distance from a bed, the flow rate of conveyed slurry, the concentration of the conveyed slurry, the types of silt and the like, and provides an effective means for deeply researching a high-precision layered hydraulic reclamation technology and improving the construction efficiency and the management quality.
In order to realize the purpose, the technical scheme of the invention is as follows:
example 4 technical solution
A movable indoor simulation device for underwater layered hydraulic reclamation construction is characterized by comprising a slurry storage system, a layered hydraulic reclamation device, a construction environment simulation system and a measurement system.
The slurry storage system comprises a storage tank 18, a solid collecting box 19 and a conveying pipeline, wherein the conveying pipeline comprises a water source pipeline 11, a water-sand mixing pipeline 12 and a slurry input pipeline 13; a water-sand mixing centrifugal pump P1 is arranged on the water-sand mixing pipeline 12, and a slurry input centrifugal pump P2 is arranged on the slurry input pipeline 13; wherein the storage tank 18 is used to store and mix silt and water; the storage box 18: a solid material collecting box 19 is arranged above the sand-discharging device for feeding sand, and the solid material collecting box 19 is used for storing sand raw materials; water is supplied to the tank through a water source pipeline 11; a circulating channel is formed by the water-sand mixing pipeline 12 and the water-sand mixing centrifugal pump P1, and the storage tank, the water-sand mixing pipeline 12 and the water-sand mixing centrifugal pump P1 form a self-circulating system for uniformly mixing water and silt; and is communicated with the layered hydraulic reclamation device through a slurry input pipeline 13.
The construction environment simulation system simulates the sea through the water tank 31, and is used for realizing the simulation of the stormy wave and current environment conditions in open sea areas. The water tank 31 is used for simulating a construction environment, and is internally provided with a wave generator 32 and a circulating water pump P3; the water tank 31 is a circulating open water tank, the upper layer is a test area, the lower layer is a water body circulating area, the upper layer and the lower layer are isolated, and the water body circulating area is used for supporting and guaranteeing the test area and ensuring the circulation of the flowing water body. Test zone on top: divide into changeover portion, experimental section and tail water section, wherein: the wave generator 32 is arranged at the front end of the transition section and is used for simulating wave conditions along the length direction of the water tank; the transition section provides uniform and stable water flow conditions for the test section, and the test section is a main test function area; the transition section and the tail water section are communicated with the water body circulation area on the lower layer. The circulating water pump P3 is arranged in a water body circulating area on the lower layer of the water tank and used for forming sustainable and circulative ocean current with flow velocity.
The layered hydraulic reclamation device comprises a hydraulic reclamation tool and a three-dimensional power system, wherein the positioning and the movement of the hydraulic reclamation tool in the water tank are controlled by the three-dimensional power system. The hydraulic reclamation tool comprises a transverse transition section pipeline 21, a vertical pipe barrel 22 and a transverse pipe barrel 23; the dredger is connected with the mud storage system through the transverse transition section pipeline 21 so as to obtain mud; the hydraulic reclamation tool is connected with the three-dimensional power system through the vertical pipe barrel 22; the transverse pipe barrel 23 is a terminal end of a hydraulic filling machine, is parallel to the width of the water tank and is provided with a plurality of pipe sections with outflow ports; the hydraulic reclamation tool delivers slurry to the bottom bed of the flume through the plurality of outlets of the transverse pipe 23 of the hydraulic reclamation tool for hydraulic reclamation simulation tests.
The three-dimensional power system is designed into a three-dimensional moving module and comprises the following components: a longitudinal first moving module 24, a transverse second moving module 25, and a vertical third moving module 26; the vertical third moving module 26 carries a hydraulic reclamation machine to realize vertical height adjustment in the water tank 31, the transverse second moving module 25 carries the vertical third moving module 26 to realize transverse width adjustment in the water tank 31, and the longitudinal first moving module 24 carries the transverse second moving module 25 to realize displacement adjustment in the length direction in the water tank 31.
The measurement system includes an in-situ measurement device; the on-site measuring apparatus includes a flow rate measuring instrument 41, a flow rate measuring instrument 42, a first camera 43, a second camera 44, and a probe 45; the flow measuring instrument 41 is used for displaying the flow information of the conveyed slurry in real time; the flow velocity measuring instrument 42 moves through a three-dimensional power system to measure flow velocities of different measuring points; the probe 45 is fixed at the test section of the water tank 31 through a three-dimensional power system and is used for measuring the thickness of the sediment at different measuring points after the test is finished.
The first camera 43 is fixed on one side of the test section of the water tank 31 through a camera support, and is right opposite to the side wall of the water tank 31, so that the shooting range is ensured to be the whole test section (comprising a water tank test section sticking ruler R2 and a sediment front view), and the first camera is used for shooting front view pictures of sediment along the length direction of the water tank and along the height direction of the water tank after a hydraulic reclamation test.
The second camera 44 is fixed above the hydraulic reclamation machine, the camera is right opposite to the bottom of the water tank 31 and used for shooting top view pictures of the sediment along the width direction of the water tank and the length direction of the water tank after the hydraulic reclamation test, the shooting position and the shooting range are kept unchanged in the shooting process, and the pixel size is set to be uniform, so that the front view and the top view pictures of the sediment under each working condition can be processed and analyzed by using picture processing software at the later stage, and the hydraulic reclamation characteristic parameters such as the diffusion range, the maximum sediment thickness and the minimum thickness of the sediment and the like can be accurately read by comparing the scale R2 of the experimental section of the water tank of the picture with the range and the height of the sediment.
By way of example, a bin stick scale R1 is provided on one side of the bin 18 to mark the liquid level.
As an embodiment, the grids 33 are arranged at the inlet end and the outlet end of the test section, so that test silt is prevented from polluting the water body circulation area of the lower layer.
By way of example, the circulating water pump 33 is used as a water flow power device, and the flow rate of the outside water flow can be controlled through the electromagnetic valve 34.
Based on the same structural design, the longitudinal first moving module 24, the transverse second moving module 25 comprise rail rods, sliding blocks with wheels and power modules, the rail rods are arranged on the upper portion of the water tank along the length direction of the water tank, the sliding blocks with the wheels are meshed with the rail rods, and the power modules are mounted on the sliding blocks and used for driving the whole water tank 31 to move in the length direction; the transverse second moving module 25 is mounted on the slide block to synchronously move along the longitudinal direction of the water tank 31 along with the longitudinal first moving module 24.
Based on the same structural design, the transverse second moving module 25 comprises rail rods, sliding blocks with wheels and a power module, wherein the rail rods are arranged on the upper part of the water tank along the width direction of the water tank 31, the sliding blocks with wheels are meshed with the rail rods, and the power module is arranged on the sliding blocks and used for driving the whole water tank 31 to move in the width direction; the vertical third moving module 26 is mounted on the slider to be synchronously displaced in the width direction of the water tank 31 along with the horizontal second moving module 25.
Based on the same structural design, the vertical third moving module 26 comprises rail rods, sliding blocks with wheels and a power module, wherein the rail rods are arranged on the upper part of the water tank along the vertical direction of the water tank 31, the sliding blocks with wheels are meshed with the rail rods, and the power module is arranged on the sliding blocks and used for driving the whole water tank 31 to move in the vertical direction; the hydraulic fill machines are mounted on the skid blocks for synchronous displacement in the vertical direction of the water trough along with the vertical third movement module 26.
Compared with the prior art, the invention has the following beneficial effects:
the mobile indoor simulation device for underwater layered hydraulic reclamation construction can fully simulate an underwater mobile hydraulic reclamation construction mode in an open sea area by integrating a plurality of specially-made subsystems.
Furthermore, the system and the method can carry out diversified adjustment on the influence of construction environments such as wind waves, currents, water depth and the like and key construction parameters such as the moving speed of the hydraulic reclamation device, the distance from a bottom bed, the flow rate of conveyed slurry, the concentration of the conveyed slurry, the types of sediment and the like, realize a multi-layer repeated moving type construction simulation technology, and provide an effective means for deeply researching a high-precision layered hydraulic reclamation technology and improving the construction efficiency and the management quality.
Drawings
FIG. 1 is a schematic diagram of an indoor simulation intelligent test system for mobile underwater layered hydraulic reclamation construction in embodiment 4 of the present invention;
FIG. 2 is a schematic view of a slurry storage system according to embodiment 1;
FIG. 3 is a schematic view of a construction environment simulation system according to embodiment 2;
FIG. 4 is a schematic view of a layered hydraulic reclamation apparatus according to example 3;
FIG. 5 is a schematic diagram of the moving modules in the three-dimensional power system in the layered blowing apparatus according to example 3;
fig. 6 is a schematic view of a control system in the mobile underwater layered hydraulic reclamation construction room simulation intelligent test system of embodiment 5;
fig. 7 is a flowchart of a simulation test method in the mobile underwater layered hydraulic reclamation construction room of embodiment 6.
Description of the labeling:
1, a slurry storage system, 2, a layered hydraulic reclamation device and 3, a construction environment simulation system;
11 water source pipelines, 12 water-sand mixing pipelines, 13 slurry input pipelines, 14 flexible conveying pipelines, 15 slurry sampling ports, 16 hoops and 17 flanges; 18 storage tanks, 19 solid collection tanks;
21 transverse transition section pipelines, 22 vertical pipe barrels, 23 transverse pipe barrels, 24 longitudinal first moving modules, 25 transverse second moving modules, 26 vertical third moving modules, 241 rail rods, 242 sliding blocks and 243 power modules;
31 water tank, 32 wave making machine, 33 grating, 34 electromagnetic valve, 35 bottom plate;
41 flow measuring instrument, 42 flow rate measuring instrument, 43 first camera, 44 second camera, 45 probe.
Detailed Description
The present invention will be described in detail with reference to the following examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way.
As shown in fig. 1, the mobile indoor simulation device for underwater layered hydraulic reclamation construction comprises a slurry storage system, a layered hydraulic reclamation device, a construction environment simulation system and a measurement system. Fig. 1 illustrates the overall construction and scenario.
Example 1
A mud storage system applied to a mobile underwater layered hydraulic reclamation construction indoor simulation device.
In the invention, the slurry storage system is an important matching device for realizing the mobile hydraulic reclamation construction simulation system.
In the prior art, a test device and a test method for indoor simulation hydraulic reclamation construction in Chinese patent application CN107780380A are as follows: be applied to indoor simulation hydraulic reclamation construction test, the system composition includes: the mud filling pipe bag is provided with a closed space and is placed in the test groove, a group of hydraulic filling connecting pipes are arranged on the upper surface of the mud filling pipe bag, the hydraulic filling connecting pipes are respectively connected with four joints of the flow dividing device through slurry conveying pipes, and the flow dividing device is connected with the conveying device through connecting pipes. The conveying device comprises: store up the mud ware, the mud ware of storage have a jar body space, storage mud ware lower part the landing leg has, storage mud ware bottom left side install the bleeder valve, storage mud ware openly install observation window and level gauge respectively, storage mud ware external fixation have a control box, the inside circuit board that is equipped with of control box, the control box surface operating button and pilot lamp are equipped with, the inside slush pump of having placed of storage mud ware, slush pump and control box wire be connected, storage mud ware upper portion be fixed with the apron, the apron on weld have the pipe, the pipe in the middle of install the stop valve, the welding of pipe upper portion have the feeder.
Chinese patent application CN106592507A is an indoor simulation site sand hydraulic reclamation building device and hydraulic reclamation method, which is characterized in that: it includes mud storage container, mixer, material loading machine, row's dredge pump.
In the prior art, the mud storage device is simple in equipment design, cannot be matched with the mud storage system of the mobile underwater layered hydraulic reclamation construction indoor simulation device to ensure that water and mud are mixed uniformly, the supply is stable, safe and reliable, the system test requirements cannot be met, and the flow and the supply of mud cannot be controlled according to requirements.
In the invention, the slurry storage system is used for uniformly mixing water and silt according to a certain proportion and then providing stable slurry supply for the layered hydraulic filling device through a pipeline.
As shown in fig. 2, the slurry storage system comprises a storage tank 18, a solid material collecting tank 19 and a conveying pipeline, wherein the conveying pipeline comprises a water source pipeline 11, a water and sand mixing pipeline 12, a slurry input pipeline 13 and a flexible conveying pipeline 14; a water-sand mixing centrifugal pump P1 is arranged on the water-sand mixing pipeline 12, and a slurry input centrifugal pump P2 is arranged on the slurry input pipeline 13;
wherein the storage tank 18 is used to store and mix silt and water; the storage box 18:
a solid material collecting box 19 is arranged above the sand-removing device to feed sand into the sand-removing device, and the solid material collecting box 19 is used for storing sand-removing raw materials;
water is supplied into the tank through a water source pipeline 11;
a circulating channel is formed by the water-sand mixing pipeline 12 and the water-sand mixing centrifugal pump P1, and the storage tank 18, the water-sand mixing pipeline 12 and the water-sand mixing centrifugal pump P1 form a self-circulating system for uniformly mixing water and silt;
communicating with the layered hydraulic reclamation through a slurry inlet conduit 13 and via a flexible transfer conduit 14;
further, the water source pipeline 11 is provided with a water source pipeline one-way valve F1 for controlling the on-off and flow rate of water;
further, a water and sand self-circulation pipeline check valve F2 is further installed on the water and sand mixing pipeline 12 of the circulation channel and used for controlling the flow of the water and sand mixture; the self-circulation system is also provided with a slurry sampling port 15 provided with a slurry sampling port check valve F3 and used for collecting slurry and detecting the uniform mixing degree of the slurry;
further, the slurry input pipeline 13 is provided with a slurry input centrifugal pump P2 for providing power for inputting slurry, and is provided with a slurry input pipeline one-way valve F4 for regulating and controlling the slurry input flow;
further, the mud storage system is also provided with a flow measuring instrument 41.
As an embodiment, the bottom of the solid material collecting box 19 is funnel-shaped, the center of the bottom of the solid material collecting box is opened, and a solid material collecting box check valve F5 capable of controlling the opening area is arranged on the bottom of the solid material collecting box.
As an embodiment, the water source pipeline 11 is fixed on the top of the storage tank 18 through a clamp 16 and is provided with a water source pipeline check valve F1 for providing stable and controllable water supply;
by way of example, the storage tank 18 is connected with the water-sand mixing centrifugal pump P1 after extending out of the lower part of the storage tank through the water-sand mixing pipeline 12, and then is connected with the top of the storage tank 18 to form a circulating channel; a slurry sampling port 15 is arranged in the water-sand mixing pipeline 12 through a tee joint, and a one-way valve F3 of the slurry sampling port is arranged for collecting slurry at any time and detecting the uniform mixing degree of the slurry;
as an embodiment, the slurry input pipeline 13 is led out from the lower part of the storage tank 18, and a slurry input centrifugal pump P2, a slurry input pipeline one-way valve F4, a flow measuring instrument 41, a flexible conveying pipeline 14 and a flange 17 are sequentially arranged in the middle; the flow measuring instrument 41 is used for displaying mud flow information in real time; the flexible conveying pipeline 14 is used for ensuring that the layered hydraulic reclamation device cannot be disconnected with a slurry conveying pipeline in the moving process, selecting a PVC steel wire hose material which is convenient to move, soft and strong in flexibility and is internally provided with spiral steel wires, and reserving a length enough for the layered hydraulic reclamation tool to move; the flange 17 is used for connecting the flexible conveying pipeline 14 with the layered blow-filling device;
by way of example, a bin stick rule R1 is provided on one side of the bin 18 to mark the liquid level.
The self-circulation system in the embodiment replaces the function of a stirrer, has better safety guarantee and is more uniform, and the mud preparation condition in the storage can be obtained through the branch of the mud sampling port in real time.
Example 2
A construction environment simulation system applied to a movable indoor simulation device for underwater layered hydraulic reclamation construction. In the invention, the construction environment simulation system is a key device for realizing mobile hydraulic reclamation construction simulation.
In the prior art, chinese patent application CN104198365A is an electronic sea wave environment simulation device, relates to environment simulation device, including test room, testboard, sea wave pond, first supporting bench, first supporting seat, motor, second supporting seat, second supporting bench, wave making plate, board axle, the testboard is installed on the left side in the test room, the right in the test room set up the sea wave pond, the sea wave pond on both sides set up first supporting bench and second supporting bench respectively. The wave making plate can rotate and swing by utilizing the motor, the simulation of the wave splashing environment can be quickly realized, the structure is simple, and the function is limited.
Chinese patent application CN207056586U discloses a marine climate environment simulation generating device, in which a propeller rotates to drive seawater to move, so as to provide marine special climates such as ocean tides and surges, more truly and comprehensively show marine climate, and the blower blows to simulate atmospheric flow, and can simulate hurricane environment, thereby realizing reproduction of marine environment in a laboratory, simulating marine real environment, but not being applicable to the environment strongly related to layered hydraulic reclamation construction marine operation.
The construction environment simulation system which is suitable for the mobile underwater layered hydraulic reclamation construction indoor simulation device cannot be matched with the construction environment simulation system, and the simulation of the wind, wave and current environment conditions in open sea areas cannot be formed.
In the invention, the construction environment simulation system simulates the ocean through the water tank 31, and is used for realizing the simulation of the stormy wave and current environment condition in the open sea area.
As shown in fig. 3, the water tank 31 is used for simulating a construction environment, and a wave generator 32 and a circulating water pump P3 are installed therein; the water tank 31 is a circulating open water tank and can be designed to be a hundred meters long, the upper layer is a test area (with a bottom plate 35), the lower layer is a water body circulating area, the upper layer and the lower layer are isolated, and the water body circulating area is used for supporting and guaranteeing the test area and guaranteeing the circulation of the flowing water body.
Test zone on top: divide into changeover portion, experimental section and tail water section, wherein: the wave generator 32 is arranged at the front end of the transition section and used for simulating wave conditions along the length direction of the water tank and adjusting key wave elements of wave height and period; the transition section provides uniform and stable water flow conditions for the test section, the test section is a main test function area, and the tail water section is arranged to avoid influence on the test caused by outlet water flow backflow; the transition section and the tail water section are communicated with the water body circulation area of the lower layer.
As an embodiment, the side wall of the test section is made of organic glass or transparent acrylic plate.
As an embodiment, the grids 33 are arranged at the inlet end and the outlet end of the test section to prevent test silt from polluting the water body circulation zone at the lower layer.
As an example, a test section attaching rule R2 is arranged on the side wall of the test section along the height direction and the bottom along the length direction of the water tank. Namely: the sticking ruler is arranged in two directions along the height direction of the water tank and the bottom of the water tank along the length direction of the water tank.
The circulating water pump P3 is arranged in a water body circulating area on the lower layer of the water tank and used for forming sustainable and circulative ocean current with flow velocity.
By way of example, the circulating water pump 33 is used as a water flow power device, and the flow rate of the external water flow can be controlled through the electromagnetic valve 34.
Example 3
A layered hydraulic reclamation device applied to a mobile underwater layered hydraulic reclamation construction indoor simulation device.
In the invention, the layered hydraulic reclamation device is a core device for realizing mobile hydraulic reclamation construction simulation.
The prior art, a pipeline system for dredging layered hydraulic fill, which is disclosed by the ministry of independent and independent navigation (tianjin) of the Zhongjiao (tianjin) dredging engineering limited (CN 209798867U): belongs to dredging and hydraulic filling construction equipment, and is not applied to indoor simulation tests.
Close to the prior art, chinese patent application CN107780380A: an indoor simulation hydraulic reclamation construction test device and an experimental method. At present, the traditional indoor hydraulic reclamation test device only simply conducts research after drainage, does not consider the natural state of transverse runoff and permeation of actual water in the hydraulic reclamation process, and is difficult to ensure the real construction state for ensuring the operability of the test and neglecting the influence of the structural size of the model and the test mode on the test result. However, in the application of the invention, the upper surface of the mud filling pipe bag is provided with a group of hydraulic filling connecting pipes, the hydraulic filling connecting pipes are arranged at four corners and are provided with external threads, the hydraulic filling connecting pipes are respectively connected with four joints of a shunting device through slurry conveying pipes, and the shunting device is connected with a conveying device through connecting pipes. The mobility and flexibility of the device are extremely limited.
As shown in fig. 4, the layered hydraulic reclamation apparatus of the present invention includes a hydraulic reclamation tool and a three-dimensional power system, and the positioning and movement of the hydraulic reclamation tool in the water tank are controlled by the three-dimensional power system.
The hydraulic reclamation tool comprises a transverse transition section pipeline 21, a vertical pipe barrel 22 and a transverse pipe barrel 23;
the dredger is connected with the mud storage system through the transverse transition section pipeline 21 so as to obtain mud;
the hydraulic reclamation tool is connected with the three-dimensional power system through the vertical pipe barrel 22;
the transverse pipe barrel 23 is a terminal end of a blowing and filling machine, is parallel to the width of the water tank and is provided with a plurality of pipe sections with outflow ports; the hydraulic reclamation tool delivers slurry to the bottom bed of the flume through a plurality of outlets in the transverse pipe 23 of the hydraulic reclamation tool for hydraulic reclamation simulation.
By way of example, the transverse transition duct 21 is connected to the flexible conveying duct 14 by a flange 17.
As shown in fig. 5, the three-dimensional power system is designed as a three-dimensional moving module, which respectively comprises: a longitudinal first moving module 24, a transverse second moving module 25, and a vertical third moving module 26;
the vertical third moving module 26 carries a hydraulic reclamation machine terminal to realize vertical height adjustment in the water tank 31, the transverse second moving module 25 carries the vertical third moving module 26 to realize transverse width adjustment in the water tank 31, and the longitudinal first moving module 24 carries the transverse second moving module 25 (meanwhile, the third moving module 26 and the hydraulic reclamation machine terminal are combined) to realize displacement adjustment in the length direction in the water tank 31;
the longitudinal first moving module 24 includes a rail bar 241, a sliding block 242 with wheels, and a power module 243, the rail bar is arranged on the upper portion of the water tank along the length direction of the water tank, the sliding block with wheels is engaged with the rail bar, and the power module (including a motor drive, a motor and a power supply, etc., which are the prior art) is mounted on the sliding block for driving the displacement of the whole body in the length direction of the water tank 31; the transverse second moving module 25 is mounted on the sliding block 242 to synchronously move along with the longitudinal first moving module 24 in the length direction of the water tank 31;
the design idea refers to the above-mentioned longitudinal first moving module 24:
the transverse second moving module 25 comprises a rail rod, a sliding block with wheels and a power module, wherein the rail rod is arranged on the upper part of the water tank along the width direction of the water tank 31, the sliding block with wheels is meshed with the rail rod, and the power module (comprising a motor drive, a motor, a power supply and the like, which are used in the prior art) is arranged on the sliding block and used for driving the whole water tank 31 to move in the width direction; the vertical third moving module 26 is mounted on the sliding block of the horizontal second moving module 25 and synchronously moves along with the horizontal second moving module 25 in the width direction of the water tank 31;
the vertical third moving module 26 includes a rail rod, a sliding block with wheels, and a power module, the rail rod is arranged on the upper portion of the water tank along the vertical direction of the water tank 31, the sliding block with wheels is engaged with the rail rod, and the power module (including a motor drive, a motor, a power supply, etc., which are used in the prior art) is mounted on the sliding block and used for driving the whole to move in the vertical direction of the water tank 31; the hydraulic reclamation tools are mounted on the sliding blocks of the vertical third moving module 26 and synchronously move along with the vertical third moving module 26 in the vertical direction of the water tank.
Example 4
Based on the embodiment 1, the embodiment 2, the embodiment 3 and the measurement system, the mobile indoor simulation device for the underwater layered hydraulic fill construction is constructed, and the underwater mobile hydraulic fill construction mode in an open sea area can be fully simulated.
The mobile indoor simulation device for the underwater layered hydraulic reclamation construction comprises a slurry storage system, a layered hydraulic reclamation device, a construction environment simulation system and a measurement system.
The slurry storage system comprises a storage tank 18, a solid collecting box 19 and a conveying pipeline, wherein the conveying pipeline comprises a water source pipeline 11, a water-sand mixing pipeline 12 and a slurry input pipeline 13; a water-sand mixing centrifugal pump P1 is arranged on the water-sand mixing pipeline 12, and a slurry input centrifugal pump P2 is arranged on the slurry input pipeline 13; wherein the storage tank 18 is used to store and mix silt and water; the storage box 18: a solid material collecting box 19 is arranged above the sand-removing device to feed sand into the sand-removing device, and the solid material collecting box 19 is used for storing sand-removing raw materials; water is supplied to the tank through a water source pipeline 11; a circulating channel is formed by the water-sand mixing pipeline 12 and the water-sand mixing centrifugal pump P1, and the storage tank, the water-sand mixing pipeline 12 and the water-sand mixing centrifugal pump P1 form a self-circulating system for uniformly mixing water and silt; and is communicated with the layered hydraulic reclamation device through a slurry input pipeline 13. Further, the mud storage system is also provided with a flow measuring instrument 41. By way of example, a bin stick scale R1 is provided on one side of the bin 18 to mark the liquid level.
The construction environment simulation system simulates the ocean through the water tank 31 and is used for realizing the simulation of the stormy wave and current environment conditions in open sea areas. The water tank 31 is used for simulating a construction environment, and is internally provided with a wave generator 32 and a circulating water pump P3; the water tank 31 is a circulating open water tank, the upper layer is a test area, the lower layer is a water body circulating area, the upper layer and the lower layer are isolated, and the water body circulating area is used for supporting and guaranteeing the test area and ensuring the circulation of the flowing water body. Test zone on top: divide into changeover portion, experimental section and tail water section, wherein: the wave generator 32 is arranged at the front end of the transition section and is used for simulating wave conditions along the length direction of the water tank; the transition section provides uniform and stable water flow conditions for the test section, and the test section is a main test function area; the transition section and the tail water section are communicated with the water body circulation area on the lower layer. As an embodiment, the grids 33 are arranged at the inlet end and the outlet end of the test section to prevent test silt from polluting the water body circulation zone at the lower layer. And the circulating water pump P3 is arranged in the water body circulating area at the lower layer of the water tank and is used for forming sustainable and circulatable ocean current with flow speed. By way of example, the circulating water pump 33 is used as a water flow power device, and the flow rate of the external water flow can be controlled through the electromagnetic valve 34.
The layered hydraulic reclamation device comprises a hydraulic reclamation tool and a three-dimensional power system, wherein the positioning and the movement of the hydraulic reclamation tool in the water tank are controlled by the three-dimensional power system. The hydraulic reclamation tool comprises a transverse transition section pipeline 21, a vertical pipe barrel 22 and a transverse pipe barrel 23; the hydraulic reclamation tool is connected with the slurry storage system through the transverse transition section pipeline 21 so as to obtain slurry; the hydraulic reclamation tool is connected with the three-dimensional power system through the vertical pipe barrel 22; the transverse pipe barrel 23 is a terminal end of a hydraulic filling machine, is parallel to the width of the water tank and is provided with a plurality of pipe sections with outflow ports; the hydraulic reclamation tool delivers slurry to the bottom bed of the flume through a plurality of outlets in the transverse pipe 23 of the hydraulic reclamation tool for hydraulic reclamation simulation.
The three-dimensional power system is designed into a three-dimensional moving module and comprises the following components: a longitudinal first moving module 24, a transverse second moving module 25, and a vertical third moving module 26; the vertical third moving module 26 carries a hydraulic filling machine to realize vertical height adjustment in the water tank 31, the transverse second moving module 25 carries the vertical third moving module 26 to realize transverse width adjustment in the water tank 31, and the longitudinal first moving module 24 carries the transverse second moving module 25 to realize displacement adjustment in the length direction in the water tank 31;
the longitudinal first moving module 24 comprises a rail rod, a sliding block with wheels and a power module, the rail rod is arranged on the upper portion of the water tank along the length direction of the water tank, the sliding block with wheels is meshed with the rail rod, and the power module is arranged on the sliding block and used for driving the whole water tank 31 to move in the length direction; the transverse second moving module 25 is mounted on the sliding block and synchronously moves along with the longitudinal first moving module 24 in the length direction of the water tank 31;
based on the same structural design, the transverse second moving module 25 comprises a rail rod, a sliding block with wheels and a power module, wherein the rail rod is arranged at the upper part of the water tank along the width direction of the water tank 31, the sliding block with wheels is meshed with the rail rod, and the power module is arranged on the sliding block and is used for driving the whole water tank 31 to move in the width direction; the vertical third moving module 26 is mounted on the sliding block and synchronously moves along with the horizontal second moving module 25 in the width direction of the water tank 31;
the vertical third moving module 26 comprises a rail rod, a sliding block with wheels and a power module, wherein the rail rod is arranged at the upper part of the water tank along the vertical direction of the water tank 31, the sliding block with wheels is meshed with the rail rod, and the power module is arranged on the sliding block and is used for driving the whole water tank 31 to move in the vertical direction; the hydraulic fill machines are mounted on the skid blocks for synchronous displacement in the vertical direction of the water trough along with the vertical third movement module 26.
The measurement system includes an in-situ measurement device; the field measurement apparatus includes a flow measurement instrument 41, a flow rate measurement instrument 42, a first camera 43, a second camera 44, and a probe 45.
The flowmeter 41 is used for displaying the flow information of the conveyed slurry in real time.
The flow velocity measuring instrument 42 moves through a three-dimensional power system to measure flow velocities at different measuring points.
The first camera 43 is fixed on one side of the test section of the water tank 31 through a camera support and is over against the side wall of the water tank 31, so that the shooting range is ensured to be the whole test section (including a tape R2 of the test section of the water tank and a front view of deposited sediment), and the first camera is used for shooting front view pictures of the deposited sediment along the length direction of the water tank and along the height direction of the water tank after the hydraulic reclamation test;
the second camera 44 is fixed above the hydraulic reclamation machine, the camera is right opposite to the bottom of the water tank 31 and used for shooting top view pictures of the sediment along the width direction of the water tank and the length direction of the water tank after the hydraulic reclamation test, the shooting position and the shooting range are kept unchanged in the shooting process, the pixel size is set to be uniform, therefore, the front view and the top view pictures of the sediment under each working condition can be processed and analyzed by using (such as Get Data software) picture processing software in the later period, and the hydraulic reclamation characteristic parameters such as the diffusion range, the maximum sediment thickness and the minimum sediment thickness of the sediment can be accurately read by comparing the scale R2 of the water tank test section of the pictures with the range and the height of the sediment.
The probe 45 is fixed at the test section of the water tank 31 through a three-dimensional power system and is used for measuring the thickness of the sediment at different measuring points after the test is finished.
Example 5
Based on the embodiment 1, the embodiment 2, the embodiment 3 and the embodiment 4, the invention is further provided with a control system, and the control system is installed in the control cabinet 5 (shown in fig. 1) and an intelligent measurement system matched with the control cabinet, so that the mobile underwater layered hydraulic reclamation construction indoor simulation intelligent test system is constructed, and the underwater mobile hydraulic reclamation construction mode in an open sea area can be fully simulated.
The control system comprises an input module, a control module and an execution module (shown in figure 6); the measuring system is combined with field measuring equipment and utilizes an input module and a calculation module of the control system to obtain key test parameters such as the concentration of the test conveying slurry, the conveying flow, the water depth, the height of the hydraulic filling machine from a bottom bed, the flow velocity of external water flow, the wave height wave period, the moving speed of the hydraulic filling machine and the like.
The input module comprises three parts, namely a slurry mixing parameter, a construction environment simulation parameter and a layered hydraulic reclamation simulation parameter, initial values of the parameters are required to be set before a test, and the initial values are target data in the test process. As an example, the respective parameters are input through a system human-machine interface.
The mud mixing parameters include water mass M w0 Mass of silt Ms 0 ；
The construction environment simulation parameter comprises the water depth h of the water tank 0 Velocity v of water flow 0 Wave height H w0 Sum wave period T w0 ；
The layered hydraulic reclamation simulation parameter comprises input slurry concentration C m0 And input slurry flow rate Q 0 And the initial position (X) of the layered hydraulic reclamation tool 0 ，Y 0 ，Z 0 ) And the moving direction of the layered hydraulic reclamation machine (D) x0 ，D y0 ，D z0 ) Moving speed (V) of layered hydraulic reclamation apparatus x0 ，V y0 ，V z0 ) And the moving distance (S) of the layered hydraulic reclamation device x0 ，S y0 ，S z0 ) The distance H between the layered hydraulic reclamation tool and the bottom of the bed b0 。
The control module is divided into a calculation module and a management module;
the calculation module comprises calculation of mud mixing parameters and position parameters of the layered hydraulic filling machine and is used for providing the calculation parameters to the management module; wherein the slurry mixing parameter is slurry parameter obtained by mixing water and silt, and the slurry concentration C m Expressed by the formula of
C m ＝M s /(M s +M w )
In the formula, C m Indicating mud concentration, ms indicating silt mass, M w Representing the water quality.
The management module comprises a mud mixing management module, a construction environment simulation module, a layered hydraulic reclamation simulation module and a key parameter measurement module, and is respectively responsible for managing a mud storage system, a construction environment simulation device and a layered hydraulic reclamation simulation device, analyzing key test parameters of the measurement system, and arranging and outputting an experiment data chart and a scientific research result. Wherein the content of the first and second substances,
specifically, the slurry mixing management module manages the concentration and the uniform mixing degree of water and silt in the slurry storage system and according to the initial slurry concentration target value C of the input module m0 ，Ms 0 Representing the initial silt mass, M w0 The initial water quality is expressed, the water and the silt are mixed uniformly according to the proportion and are obtained from a mud sampling portA specified volume V of mud, and measuring the mass M of the sampled mud, the mud concentration C m Conversion formula is
Figure BDA0003677833910000141
In the formula, C m Representing the mud concentration, p s Representing the silt density, p w Representing water density, M representing sampled mud mass, and V representing mud volume.
If C is present m And C m0 The error is not more than 5%, the design goal is considered to be reached, and the mud concentration is changed to C if necessary m’ Then the water and the silt are properly added for further mixing, and the added silt mass is calculated according to the formula
Figure BDA0003677833910000142
In the formula,. DELTA.M s Shows that the target C is changed in order to achieve the slurry concentration m’ The newly added silt mass, C m ' denotes the changed mud concentration, ms 0 Representing the initial silt mass, M w0 Denotes the initial water mass,. DELTA.M w Indicating the added water mass to achieve the mud concentration change target.
As an embodiment, the uniformity of the slurry is managed by sampling three times, comparing the mass errors of the slurry sampled at the same time to judge the uniformity of the slurry, and if the mass errors of the slurry sampled three times do not exceed 5%, the slurry is considered to be uniformly mixed. If the sampling mud uniformity exceeds 5%, water and silt self-circulation is required to be carried out continuously through the centrifugal pump, and the mud can not be supplied to the layered hydraulic reclamation device until the sampling mud uniformity meets the requirement, so that hydraulic reclamation is simulated.
Specifically, the construction environment simulation module manages and adjusts the states of the water tank circulating water pump P3, the electromagnetic valve 34 and the wave generator so as to meet the set requirements of the test environment.
Specifically, the layered hydraulic reclamation simulation management module controls and manages the power module in the three-dimensional power system according to the input slurry flow and the setting of the position, the moving speed, the direction and the distance of the layered hydraulic reclamation tool.
Specifically, the layered hydraulic reclamation simulation management module adjusts the flow by regulating the opening of the slurry input one-way valve F4, and judges whether the set input slurry flow Q is reached or not by monitoring data of a flow measuring instrument 16 arranged on a slurry input pipeline 0 . If the monitored flow Q is less than Q 0 Then the opening n of the slurry input one-way valve F4 needs to be increased, if the monitoring flow Q is more than Q 0 The opening n of the slurry inlet check valve F4 needs to be decreased. The conversion relationship between the two is as follows:
Figure BDA0003677833910000151
in the formula, Q 0 Representing the initial input mud flow, n 0 Representing initial input mud flow Q 0 Corresponding opening degree (n) 0 The variation range is 0 to 1,0 represents no flow rate, and 1 represents maximum flow rate); q represents the monitored mud flow in the test process, and n represents the opening degree of the electromagnetic valve corresponding to the input mud flow Q.
The movement control of the layered hydraulic reclamation tool can obtain the movement speed (V) of the layered hydraulic reclamation tool of the three-dimensional power system in real time through the input module and the calculation module x ，V y ，V z ) Distance (S) x ，S y ，S z ) And direction (D) x ，D y ，D z ) To regulate and control the movement of the layered hydraulic reclamation tool at different speeds, distances and directions so as to reach a target position (X) 1 ，Y 1 ，Z 1 )：
Figure BDA0003677833910000152
In the formula, X 1 、Y 1 、Z 1 Respectively representing target positions, X, of layered hydraulic-filling machines 0 、Y 0 、Z 0 Respectively indicating layered hydraulic fillInitial position of the implement, S x0 、S y0 、S z0 Respectively, the travel distance of the layered hydraulic reclamation tool.
Specifically, the key parameter measurement management module manages key hydraulic reclamation characteristic parameters such as slurry flow, water flow measuring point flow rate, different characteristic thicknesses of hydraulic reclamation silt, and hydraulic reclamation range. For the mud flow, the flow of the input mud is measured in real time by the flow measuring instrument 41. And for the flow velocity of the water flow measuring points, the flow velocity measuring instrument 42 is controlled to measure at different water depths of different measuring points. For the blow-fill characteristic parameter, it is measured by controlling the first camera, the second camera and the probe.
In this embodiment, the measurement system is used to obtain key test parameters such as test slurry delivery concentration, delivery flow, water depth, height of the hydraulic fill-out implement from the bottom bed, external water flow velocity, wave height wave period, and movement speed of the hydraulic fill-out implement by combining with the field measurement device and using the input module and the calculation module of the control system.
The field measurement apparatus includes a flow measurement instrument 41, a flow rate measurement instrument 42, a first camera 43, a second camera 44, and a probe 45.
Wherein, the flow measuring instrument 41 is used for displaying the flow information of the conveyed mud in real time.
The flow velocity measuring instrument 42 moves through a three-dimensional power system to measure flow velocities at different measuring points.
The first camera 43 is fixed on one side of the test section of the water tank 31 through a camera support, and is opposite to the side wall of the water tank 31, so that the shooting range is ensured to be the whole test section (comprising a sticking ruler R2 of the test section of the water tank and a front view of deposited sediment), and the front view photos of the deposited sediment along the length direction of the water tank and the height direction of the water tank after the hydraulic reclamation test are shot;
the second camera 44 is fixed above the hydraulic reclamation machine, the camera is right opposite to the bottom of the water tank 31 and used for shooting top view pictures of the sediment along the width direction of the water tank and the length direction of the water tank after the hydraulic reclamation test, the shooting position and the shooting range are kept unchanged in the shooting process, the pixel size is set to be uniform, therefore, the front view and the top view pictures of the sediment under each working condition can be processed and analyzed by using (such as Get Data software) picture processing software in the later period, and the hydraulic reclamation characteristic parameters such as the diffusion range, the maximum sediment thickness and the minimum sediment thickness of the sediment can be accurately read by comparing the scale R2 of the water tank test section of the pictures with the range and the height of the sediment.
The probe 45 is fixed at the test section of the water tank 31 through a three-dimensional power system and is used for measuring the thickness of the sediment at different measuring points after the test is finished.
Example 6
Based on the mobile indoor simulation intelligent test system for underwater layered hydraulic fill construction in the embodiment 5, an underwater mobile hydraulic fill construction mode in an open sea area can be fully simulated, and a simulation test method (shown in fig. 7) implemented indoors in the embodiment is further disclosed, and the method comprises the following steps:
(1) Designing key test parameters through an input module: according to the principles of gravity similarity, geometric similarity and power similarity, key test parameters such as the concentration of the tested conveyed slurry, the conveying flow, the water depth, the height of the hydraulic filling machine from a bottom bed, the flow rate of external water flow, the wave height wave period, the initial position of the hydraulic filling machine, the moving speed and the like are designed and determined.
(2) Water depth, speed and wave conditions are set through an input module: and (3) injecting water into the water tank 31 to the test water depth, starting a water tank circulating water pump P3, setting the state of an electromagnetic valve according to the external flow speed of the test design, and adjusting the flow speed of water flow in the water tank to the design flow speed. And adjusting and setting wave height and wave period parameters of the wave making machine as design wave conditions according to the test wave conditions.
(3) And (3) mixing the slurry uniformly through a management module: opening a one-way valve F5 of a solid collecting box and a one-way valve F1 of a water source pipeline, injecting silt and water with fixed proportion and quality into a storage box according to the concentration of the tested slurry, opening a one-way valve F2 of a water-sand self-circulation pipeline, simultaneously opening a water-sand mixing centrifugal pump P1, and after running for 1min, taking the slurry through a slurry sampling port to detect the uniform mixing degree of the slurry. When sampling, opening a one-way valve F3 of a slurry sampling port, synchronously closing a one-way valve F2 of a water-sand self-circulation pipeline, taking slurry at regular time through the slurry sampling port, measuring the mass of the sampled slurry for three times, and converting to obtain the average sampled slurry concentration for three times. If the concentration of the sampled mud is basically consistent with the designed concentration, the mud is considered to be uniformly mixed, otherwise, the silt and the water are adjusted to be further mixed. After sampling, the one-way valve F3 of the mud sampling port is immediately closed, the one-way valve F2 of the water-sand self-circulation pipeline is synchronously opened, and mud is always kept in continuous circulation in the test process, so that the input mud of the layered hydraulic reclamation machine is always uniformly mixed.
(4) Starting a first layer of mobile blowing-filling through a management module: and (3) opening the slurry input one-way valve F4 and the slurry input centrifugal pump P2, and controlling the opening of the slurry input one-way valve F4 to enable the slurry flow of the slurry input pipeline measured by the flow measuring instrument 41 to be set flow. And setting the moving speed, the moving direction and the moving distance of a three-dimensional power system of the layered hydraulic reclamation device, so that the hydraulic reclamation tool is synchronously controlled to move along the water tank direction until reaching a set position according to the set moving speed by controlling the three-dimensional power system provided with the hydraulic reclamation tool, and simulating a first-layer movable hydraulic reclamation process. In the test process, the flow velocity measuring instrument 42 is controlled to measure the flow velocity at the specific water depth of the specific measuring point according to the test requirement, so as to measure the flow field change.
(5) And finishing the first-layer mobile hydraulic filling through a management module: and when the hydraulic reclamation device moves to the set movement distance end point position, closing the slurry input centrifugal pump P2, and resetting the movement speed, the movement direction and the movement distance of the three-dimensional power system of the layered hydraulic reclamation device, so that the hydraulic reclamation device is controlled to move to the initial position as fast as possible by controlling the three-dimensional power system for installing the hydraulic reclamation device under the condition of not disturbing deposited silt, and the layered hydraulic reclamation device needs a special person to assist the steel wire hose conveying pipeline to move synchronously during the movement and ensures that the connection is not disconnected.
(6) Repeating the steps (4) to (5) through a management module until a simulation test in a target n-layer (n is more than or equal to 1) movable underwater layered hydraulic reclamation construction chamber is realized;
(7) Measuring characteristic parameters of a hydraulic filling test through a measuring system: after the simulation test in the working condition multilayer movable underwater layered hydraulic fill construction room is finished, stopping the test, closing the wave making machine 32, the water tank circulating water pump P3, the slurry input centrifugal pump P2, the water-sand mixing centrifugal pump P1 and all one-way valves by the management module, slowly emptying water in the test water tank after sediment in the water tank is precipitated to clear water, and respectively photographing the sediment in the test section by using the camera 1 and the camera 2 in the measurement system for later-stage measuring hydraulic fill characteristic parameters such as a hydraulic fill range, maximum hydraulic fill thickness and minimum hydraulic fill thickness by using image processing software, and accurately measuring the hydraulic fill thickness of a specific measuring point by using a probe; and (4) arranging and outputting key test parameters of the measurement system by a management system in an experiment data chart.
(8) And (3) clearing silt in the test area of the water tank, changing key parameters such as slurry conveying concentration, conveying flow, the height of a hydraulic filling machine from a bottom bed, the external water flow velocity, wave height, wave period, the moving speed of the hydraulic filling machine and the like according to test requirements, and repeating the steps (2) to (7) under a management module to realize a mobile underwater layered hydraulic filling construction indoor simulation test with diversified adjustment.
Example 7
The length scale of the application example test is 1: the design parameters and prototype parameters are shown in Table 1.
Table 1 table of parameters of this example
Figure BDA0003677833910000181
(2) And (3) injecting water into the water tank 31 to the test water depth, starting the circulating water pump P3, setting the rotating speed of the electromagnetic valve 34 according to the external flow speed of the test design, and adjusting the flow speed of the water flow in the water tank to be the design flow speed of 0.237m/s.
(3) Opening a solid material collecting box one-way valve F5 and a water source pipeline one-way valve F1, injecting the sediment and water with fixed proportion and quality into a storage box according to the concentration of the tested slurry, opening a water-sand self-circulation pipeline one-way valve F2, simultaneously opening a water-sand mixing centrifugal pump P1, and after running for 1min, taking the slurry through a slurry sampling port 15 to detect the uniform mixing degree of the slurry. When sampling, opening a one-way valve F3 of a slurry sampling port, synchronously closing a one-way valve F2 of a water-sand self-circulation pipeline, taking slurry at regular time through the slurry sampling port, measuring the mass of the sampled slurry for three times, and converting to obtain the average sampled slurry concentration for three times. If the concentration of the sampled slurry is basically consistent with the designed concentration of 20%, the slurry is considered to be uniformly mixed, otherwise, the silt and the water are adjusted to be further mixed. After sampling, the one-way valve F3 of the mud sampling port is immediately closed, the one-way valve F2 of the water-sand self-circulation pipeline is synchronously opened, and mud is kept to circulate continuously all the time in the test process, so that the input mud of the layered hydraulic reclamation tool is guaranteed to be evenly mixed mud all the time.
(4) Opening the slurry input one-way valve F4 and the slurry input centrifugal pump P2, and controlling the opening degree of the slurry input one-way valve F4 to enable the slurry flow of the slurry input pipeline measured by the flow measuring instrument 41 to be 0.006m of set flow 3 And(s) in the presence of a catalyst. And setting the initial position, the moving speed, the moving direction and the moving distance of the three-dimensional power system, so that the three-dimensional power system for controlling and installing the hydraulic filling machine tool synchronously controls the hydraulic filling machine tool to move along the water tank direction until the hydraulic filling machine tool reaches the set position according to the set moving speed, and simulating the first-layer movable hydraulic filling process. In the test process, the flow velocity measuring instrument is controlled to measure the flow velocity at the specific water depth of the specific measuring point according to the test requirement, so as to measure the flow field change.
(5) And when the hydraulic reclamation device moves to the set movement distance end point position, closing the slurry input centrifugal pump P2, and resetting the movement speed, the movement direction and the movement distance of the three-dimensional power system, so that the hydraulic reclamation device is controlled to move to the initial position as fast as possible by controlling the three-dimensional power system provided with the hydraulic reclamation device under the condition of not disturbing sediment, and the layered hydraulic reclamation device needs a special person to assist the steel wire hose conveying pipeline to synchronously move during the movement and ensures that the connection is not disconnected.
(6) Repeating the steps (4) - (5) until a simulation test in the target 3-layer movable underwater layered hydraulic reclamation construction room is realized;
(7) After the indoor simulation test of the working condition multilayer movable underwater layered hydraulic reclamation construction is finished, the test is stopped, the wave making machine, the water tank circulating water pump P3, the slurry input centrifugal pump P2, the water-sand mixing centrifugal pump P1 and all one-way valves are closed, after the sediment in the water tank is precipitated to clear water, the water in the test water tank is slowly emptied, the sediment in the test section is photographed by using the first camera 43 and the second camera 44 respectively, the test section sediment is used for measuring hydraulic reclamation characteristic parameters such as a hydraulic reclamation range, a maximum hydraulic reclamation thickness and a minimum hydraulic reclamation thickness by using image processing software in the later period, and the hydraulic reclamation thickness of a specific measuring point is accurately measured by using the probe 45.
(8) And (3) clearing the silt in the test area of the water tank, changing key parameters such as the concentration of the conveyed slurry, the conveying flow, the height of the hydraulic filling machine from the bottom bed, the flow velocity of external water flow, the wave height, the wave period, the moving speed of the hydraulic filling machine and the like according to test requirements, and repeating the steps (2) to (7) to realize the mobile underwater layered hydraulic filling construction indoor simulation test with diversified adjustment.
In conclusion, by adopting the simulation device and the test method, the mobile layered hydraulic reclamation with uniformly mixed slurry can be ensured under the indoor wind wave flow simulation construction environment, and a scientific means is provided for deep research on accurate hydraulic reclamation.
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims (10)

1. A movable indoor simulation device for underwater layered hydraulic reclamation construction is characterized by comprising a slurry storage system, a layered hydraulic reclamation device, a construction environment simulation system and a measurement system.
2. The apparatus of claim 1, wherein said slurry storage system comprises a holding tank 18, a solids collection tank 19, and a delivery conduit, wherein said delivery conduit comprises a water source conduit 11, a water and sand mixing conduit 12, a slurry input conduit 13; a water-sand mixing centrifugal pump P1 is arranged on the water-sand mixing pipeline 12, and a slurry input centrifugal pump P2 is arranged on the slurry input pipeline 13; wherein the storage tank 18 is used to store and mix silt and water; the storage box 18: a solid material collecting box 19 is arranged above the sand-removing device to feed sand into the sand-removing device, and the solid material collecting box 19 is used for storing sand-removing raw materials; water is supplied into the tank through a water source pipeline 11; a circulating channel is formed by the water-sand mixing pipeline 12 and the water-sand mixing centrifugal pump P1, and the storage tank, the water-sand mixing pipeline 12 and the water-sand mixing centrifugal pump P1 form a self-circulating system for uniformly mixing water and silt; and is communicated with the layered hydraulic reclamation device through a slurry input pipeline 13.
3. The apparatus as claimed in claim 1, wherein the construction environment simulation system simulates sea through the water tank 31 for realizing the simulation of the environmental conditions of stormy waves and currents in open sea areas. The water tank 31 is used for simulating a construction environment, and is internally provided with a wave generator 32 and a circulating water pump P3; the water tank 31 is a circulating open water tank, the upper layer is a test area, the lower layer is a water body circulating area, the upper layer and the lower layer are isolated, and the water body circulating area is used for supporting and guaranteeing the test area and ensuring the circulation of the flowing water body. Test zone on top: divide into changeover portion, experimental section and tail water section, wherein: mounting the said at the front end of the transition sectionWave making machine 32For simulating wave conditions along the length of the tank; the transition section provides uniform and stable water flow conditions for the test section, and the test section is a main test function area; the transition section and the tail water section are communicated with the water body circulation area of the lower layer. The circulating water pump P3 is arranged in a water body circulating area on the lower layer of the water tank and used for forming sustainable and circulative ocean current with flow velocity.
4. The apparatus of claim 1, wherein the layered hydraulic reclamation apparatus comprises a hydraulic reclamation tool, a three-dimensional power train, and wherein the positioning and movement of the hydraulic reclamation tool in the water tank is controlled by the three-dimensional power train. The hydraulic reclamation machine comprises a transverse transition section pipeline 21, a vertical pipe barrel 22 and a transverse pipe barrel 23; the hydraulic reclamation tool is connected with the slurry storage system through the transverse transition section pipeline 21 so as to obtain slurry; the hydraulic reclamation tool is connected with the three-dimensional power system through the vertical pipe barrel 22; the transverse pipe barrel 23 is a terminal end of a hydraulic filling machine, is parallel to the width of the water tank and is provided with a plurality of pipe sections with outflow ports; the hydraulic reclamation tool delivers slurry to the bottom bed of the flume through a plurality of outlets in the transverse pipe 23 of the hydraulic reclamation tool for hydraulic reclamation simulation.
5. The apparatus according to claim 1, wherein the three-dimensional power system is designed as a three-dimensional moving module, and comprises: a longitudinal first moving module 24, a transverse second moving module 25, and a vertical third moving module 26; the vertical third moving module 26 carries a hydraulic filling machine to realize vertical height adjustment in the water tank 31, the transverse second moving module 25 carries the vertical third moving module 26 to realize transverse width adjustment in the water tank 31, and the longitudinal first moving module 24 carries the transverse second moving module 25 to realize displacement adjustment in the length direction in the water tank 31.
6. The apparatus of claim 1, wherein the measurement system comprises an in-situ measurement device; the on-site measuring apparatus includes a flow rate measuring instrument 41, a flow rate measuring instrument 42, a first camera 43, a second camera 44, and a probe 45; the flow measuring instrument 41 is used for displaying the flow information of the conveyed slurry in real time; the flow velocity measuring instrument 42 moves through a three-dimensional power system to measure flow velocities of different measuring points; the probe 45 is fixed at the test section of the water tank 31 through a three-dimensional power system and is used for measuring the thickness of the sediment at different measuring points after the test is finished.
7. The apparatus as claimed in claim 1, wherein the first camera 43 is fixed to the side of the test section of the tank 31 through a camera holder facing the side wall of the tank 31, and is used for taking a front view photograph of the sediment along the length direction of the tank and along the height direction of the tank after the blow-fill test, wherein the photograph is taken over the entire test section (including a tape R2 of the test section of the tank and a front view of the sediment).
8. The apparatus of claim 1, wherein the second camera 44 is fixed above the hydraulic reclamation apparatus, the camera faces the bottom of the water tank 31, and is used for taking a top view picture of the sediment along the width direction and the length direction of the water tank after the hydraulic reclamation test, the shooting position and range are kept unchanged during the shooting process, and the pixel size is set to be uniform, so that the front view and the top view picture of the sediment under each working condition can be processed and analyzed by using picture processing software at a later stage, and the hydraulic reclamation characteristic parameters such as the spreading range, the maximum thickness and the minimum thickness of the sediment can be accurately read by comparing the picture with the scale R2 of the test section of the water tank, the range and the height of the sediment.
9. The apparatus as claimed in claim 1, wherein a bin stick R1 for marking a liquid level is provided at one side of the bin 18.
10. The apparatus of claim 1, wherein grilles 33 are provided at the entrance and exit ends of the test section to prevent test silt from contaminating the water circulation zone of the lower layer.
CN202210623590.8A 2022-06-02 2022-06-02 Portable indoor analogue means of layer-by-layer hydraulic reclamation construction under water Active CN115162259B (en)

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