CN116575386A - Indoor simulation test method for movable underwater layered hydraulic reclamation construction - Google Patents

Indoor simulation test method for movable underwater layered hydraulic reclamation construction Download PDF

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Publication number
CN116575386A
CN116575386A CN202310227789.3A CN202310227789A CN116575386A CN 116575386 A CN116575386 A CN 116575386A CN 202310227789 A CN202310227789 A CN 202310227789A CN 116575386 A CN116575386 A CN 116575386A
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China
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water
test
mud
hydraulic filling
hydraulic
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郝宇驰
孙慧
朱平
吕行行
陈沁泽
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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 CN202310227789.3A priority Critical patent/CN116575386A/en
Publication of CN116575386A publication Critical patent/CN116575386A/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

A movable underwater layered hydraulic reclamation construction indoor simulation test method comprises the following steps: step (1) key test parameters are designed through an input module; setting water depth, speed and wave conditions through an input module; step (3), uniformly mixing the slurry through a management module; step (4), starting a first layer of mobile hydraulic reclamation through a management module; step (5) completing the first layer of mobile hydraulic reclamation through a management module; step (6), repeating the steps (4) - (5) through a management module; measuring characteristic parameters of a hydraulic filling test by a measuring system; and (8) cleaning sediment in the water tank test area. The multi-layer repeated movable construction simulation technology is realized by performing multi-element adjustment on various key construction parameters, and an effective means is provided for further researching the high-precision layered hydraulic filling technology, improving the construction efficiency and the management quality.

Description

Indoor simulation test method for movable underwater layered hydraulic reclamation construction
The application is divided into China patent application 2022106235908, namely a movable indoor simulation device for underwater layered hydraulic reclamation construction.
Technical Field
The application belongs to the field of indoor simulation tests of hydraulic reclamation construction.
Background
Along with the rapid development of dredging hydraulic filling engineering, the requirements and the limitations on the construction conditions of the dredging hydraulic filling engineering are continuously increased, and the current common direct hydraulic filling construction method in China cannot meet the requirements on the precise control, high efficiency and environment-friendly dredging of the hydraulic filling construction because the hydraulic filling soil property difference is not considered, the rough self-fixed point hydraulic filling is gradually advanced, the backfill flatness is poor, and the subsequent foundation treatment is difficult. The layered hydraulic filling construction method aims at the defects, designs the paving thickness of each layer according to engineering hydraulic filling requirements and sand source characteristics, and utilizes the configured layered hydraulic filling device to accurately control so as to achieve the aim of accurately paving hydraulic filling materials layer by layer to a preset construction position of the water bottom. However, the method is only limited to be applied to projects with good construction conditions due to complex construction processes, and the existing hydraulic reclamation construction experience and technology are insufficient to meet the requirements of layered hydraulic reclamation construction fine control under the conditions for open sea areas with complex hydrological environmental conditions such as large water depth, influence of stormy waves and the like. Further systematic research is still needed on how to control and implement high-precision layered hydraulic reclamation construction. The indoor simulation device and the experimental method for the movable underwater layered hydraulic reclamation construction provided by the invention can accurately simulate the actual movable layered hydraulic reclamation construction mode and effect, are high in operability, have diversified adjustment, and provide effective means for further researching the high-precision layered hydraulic reclamation technology and improving the construction efficiency and the management quality.
According to the search discovery of the existing indoor simulation hydraulic filling technology, aiming at the research requirements of the underwater movable hydraulic filling construction process in the open sea area influenced by the hydrological environments such as wind, wave and current, the existing hydraulic filling construction simulation test device and test method generally have the defects that the directional fixed-point hydraulic filling cannot be realized, the wind, wave and current construction environment cannot be simulated, the mixing uniformity of the conveying slurry cannot be effectively ensured, and the like, and the requirement on the fine control simulation of the movable layered hydraulic filling cannot be met.
Disclosure of Invention
The invention aims at disclosing a design technical scheme of a movable underwater layered hydraulic filling construction indoor simulation device, which comprises a slurry storage system, a layered hydraulic filling device and a construction environment simulation system, so as to respectively construct the movable underwater layered hydraulic filling construction indoor simulation device in a matched mode.
Furthermore, the invention aims to provide a movable underwater layered hydraulic reclamation construction indoor simulation device which can fully simulate an actual movable layered hydraulic reclamation construction mode.
Furthermore, the invention aims to provide a movable underwater layered hydraulic reclamation indoor intelligent simulation test system.
Furthermore, the invention aims to provide an indoor intelligent simulation test method for the movable underwater layered hydraulic reclamation construction. The invention can fully simulate the actual movable layered hydraulic filling construction mode, can carry out diversified adjustment on construction environment factors such as stormy waves, currents, water depths and the like, and key construction parameters such as the moving speed of the hydraulic filling device, the distance from a bottom bed, the flow rate of conveying slurry, the concentration of conveying slurry, the types of sediment and the like, and provides an effective means for further researching the high-precision layered hydraulic filling technology and improving the construction efficiency and the management quality.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
example 4 technical solution
The movable underwater layered hydraulic reclamation indoor simulation device 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 box, a solid collecting box and a conveying pipeline, wherein the conveying pipeline comprises a water source pipeline, a water-sand mixing pipeline and a slurry input pipeline; a water-sand mixing centrifugal pump P1 is arranged on the water-sand mixing pipeline, and a mud input centrifugal pump P2 is arranged on the mud input pipeline; the storage box is used for storing and mixing sediment and water; the storage box: a solid collecting box is arranged above the device for throwing sediment, and the solid collecting box is used for storing sediment raw materials; water is supplied into the tank through a water source pipeline; a circulating channel is formed by the water and sand mixing pipeline and the water and sand mixing centrifugal pump P1, and the storage box, the water and sand mixing pipeline and the water and sand mixing centrifugal pump P1 form a self-circulating system for uniformly mixing water and sediment; and the slurry inlet pipeline is communicated with the layered hydraulic filling device.
The construction environment simulation system simulates ocean through a water tank and is used for realizing the simulation of the environmental conditions of wind, waves and currents in open sea areas. The water tank is used for simulating a construction environment, and a wave generator and a circulating water pump P3 are installed in the water tank; the water tank is a circulating open water tank, the upper layer is a test area, the lower layer is a water circulation area, the upper layer and the lower layer are isolated, and the water circulation area is used for supporting and guaranteeing the test area and guaranteeing the circulation of flowing water. Test area at upper layer: the device comprises a transition section, a test section and a tail water section, wherein: the wave generator 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 functional area for the test; the transition section and the tail water section are communicated with the water body circulation area at the lower layer. The circulating water pump P3 is arranged in a water circulation area at the lower layer of the water tank and is used for forming sustainable and circulated ocean water flow with flow rate.
The layered hydraulic filling device comprises a hydraulic filling machine and a three-dimensional power system, and the positioning and the movement of the hydraulic filling machine in the water tank are controlled by the three-dimensional power system. The hydraulic filling machine comprises a transverse transition section pipeline, a vertical pipe barrel and a transverse pipe barrel; the hydraulic filling machine is connected with the slurry storage system through the transverse transition section pipeline so as to obtain slurry; the hydraulic filling machine is connected with the three-dimensional power system through a vertical pipe barrel; the transverse pipe barrel is a terminal of the hydraulic filling machine, is parallel to the width of the water tank and is provided with a pipe section with a plurality of outflow openings; the hydraulic filling machine conveys slurry to the bottom bed of the water tank through a plurality of outflow openings of the transverse pipe barrel of the hydraulic filling machine for hydraulic filling simulation test.
The three-dimensional power system is designed as a three-dimensional mobile module and is respectively: a longitudinal first moving module, a transverse second moving module and a vertical third moving module; the vertical third moving module carries a hydraulic filling machine tool to realize vertical height adjustment in the water tank, the horizontal second moving module carries a vertical third moving module to realize horizontal width adjustment in the water tank, and the longitudinal first moving module carries a horizontal second moving module to realize displacement adjustment in the length direction in the water tank.
The measurement system includes an in-situ measurement device; the field measurement device includes a flow measurement instrument 41, a flow measurement instrument, a first camera, a second camera, and a probe; the flow measuring instrument is used for displaying the flow information of the conveyed mud in real time; the flow velocity measuring instrument moves through a three-dimensional power system to measure the flow velocity of different measuring points; the probe is fixed on the water tank test section through a three-dimensional power system and is used for measuring the sediment thickness of different measuring points after the test is finished.
The first camera is fixed on one side of the water tank test section through the camera support and is opposite to the side wall of the water tank, the shooting range is guaranteed to be the whole test section (including a ruler R2 attached to the water tank test section and a front view of sediment, which is used for shooting front view photos of sediment along the length direction of the water tank and along the height direction of the water tank after the hydraulic filling test.
The second camera is fixed above the hydraulic filling machine, the camera is right opposite to the bottom of the water tank and is used for shooting a top view picture of sediment along the width direction and the length direction of the water tank after the hydraulic filling test, the shooting position and the range are kept unchanged in the shooting process, the pixel size is set to be uniform, the front view of the sediment and the top view picture of each working condition can be processed and analyzed by using picture processing software in the later stage, and the hydraulic filling characteristic parameters such as the diffusion range, the maximum sediment thickness and the minimum sediment thickness of the sediment are accurately read by comparing the proportion of the scale R2 to the sediment range and the height of the water tank test section of the picture.
As an embodiment, a storage box sticking ruler R1 is arranged on one side of the storage box and is used for marking the liquid level.
As an embodiment, the grids are arranged at the inlet end and the outlet end of the test section, so that the test sediment is prevented from polluting the lower water circulation area.
As an embodiment, the circulating water pump is used as a water flow power device, and the flow speed of external water flow can be controlled through the electromagnetic valve.
Based on the same structural design, the longitudinal first moving module, the transverse second moving module, the sliding block with wheels and the power module are arranged on the upper part of the water tank along the length direction of the water tank, the sliding block with the wheels is meshed with the sliding block, and the power module is arranged on the sliding block and used for driving the whole water tank to move in the length direction; the transverse second moving module is arranged on the sliding block and synchronously moves along with the longitudinal first moving module in the length direction of the water tank.
Based on the same structural design, the transverse second moving module 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, the sliding block with the 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 to move in the width direction; the vertical third moving module is arranged on the sliding block and synchronously displaces along with the horizontal second moving module in the width direction of the water tank.
Based on the same structural design, the vertical third moving module 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 vertical direction of the water tank, the sliding block with the wheels is meshed with the rail rod, and the power module is arranged on the sliding block and used for driving the whole body to move in the vertical direction of the water tank; the hydraulic filling machine is arranged on the sliding block and synchronously displaces along with the vertical third moving module in the vertical direction of the water tank.
A movable underwater layered hydraulic reclamation construction indoor simulation test method comprises the following steps:
step (1) key test parameters are designed through an input module;
setting water depth, speed and wave conditions through an input module;
step (3), uniformly mixing the slurry through a management module;
step (4), starting a first layer of mobile hydraulic reclamation through a management module;
step (5) completing the first layer of mobile hydraulic reclamation through a management module;
step (6), repeating the steps (4) - (5) through a management module;
measuring characteristic parameters of a hydraulic filling test by a measuring system;
and (8) cleaning sediment in the water tank test area.
Step (1) key test parameters are designed through an input module: and (3) according to the principles of gravity similarity, geometric similarity and power similarity, 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 the bottom bed, the external water flow velocity, the wave-height wave period, the initial position of the hydraulic filling machine, the moving speed and the like are designed and determined.
Step (2) setting water depth, speed and wave conditions through an input module: injecting water into the water tank 31 to the test water depth, starting the water tank circulating water pump P3, setting the state of the electromagnetic valve according to the external flow rate of the test design, and adjusting the flow rate of water in the water tank to be the designed flow rate. And adjusting and setting wave height and wave period parameters of the wave generator as designed wave conditions according to the test wave conditions.
Step (3) uniformly mixing mud through a management module: opening a solid aggregate box one-way valve F5 and a water source pipeline one-way valve F1, injecting sediment and water with fixed proportion and mass into the storage box according to the concentration of test mud, opening a water-sand self-circulation pipeline one-way valve F2, simultaneously opening a water-sand mixing centrifugal pump P1, and detecting the mixing uniformity degree of the mud by taking the mud through a mud sampling port after the operation for 1 min. When sampling, the mud sampling port check valve F3 is opened, the water and sand self-circulation pipeline check valve F2 is synchronously closed, mud is regularly taken through the mud sampling port, the quality of the sampled mud is measured for three times, and the three times of average sampled mud concentration is obtained through conversion. If the concentration of the sampled slurry is basically consistent with the designed concentration, the slurry is considered to be uniformly mixed, otherwise, the sediment and the water are adjusted to be further mixed. After the sampling is finished, immediately closing the mud sampling port check valve F3, synchronously opening the water and sand self-circulation pipeline check valve F2, and always keeping mud continuously circulated in the test process, thereby ensuring that the input mud of the layered hydraulic reclamation machine is evenly mixed.
Step (4) starting a first layer of mobile hydraulic reclamation through a management module: the mud input check valve F4 and the mud input centrifugal pump P2 are opened, and the opening of the mud input check valve F4 is controlled so that the mud flow of the mud input pipeline measured by the flow measuring instrument 41 is a set flow. The moving speed, the moving direction and the moving distance of the three-dimensional power system of the layered hydraulic filling device are set, so that the hydraulic filling machine is synchronously controlled to move along the water tank direction according to the set moving speed by controlling the three-dimensional power system provided with the hydraulic filling machine until reaching the set position, and the first-layer movable hydraulic filling process is simulated. During the test, the flow rate measuring instrument 42 is controlled to measure the flow rate at the specific water depth of the specific measuring point according to the test requirement, so as to measure the flow field change.
Step (5) completing first-layer movable hydraulic reclamation through a management module: when the hydraulic filling machine moves to the set moving distance end position, the slurry input centrifugal pump P2 is closed, the moving speed, moving direction and moving distance of the three-dimensional power system of the layered hydraulic filling device are reset, so that the hydraulic filling machine is controlled to move to the initial position as quickly as possible by controlling the three-dimensional power system of the hydraulic filling machine under the condition that sediment is not disturbed, and a special person is required to assist the steel wire hose conveying pipeline to synchronously move and ensure that the connection is not disconnected during the moving of the layered hydraulic filling device.
And (6) repeating the steps (4) - (5) through a management module until the indoor simulation test of the movable underwater layered hydraulic reclamation construction of the target n layers (n is more than or equal to 1) is realized.
Step (7), measuring characteristic parameters of the hydraulic filling test by a measuring system: after the indoor simulation test of the multilayer movable underwater layered hydraulic reclamation construction under the working condition is finished, stopping the test, closing a wave generator, a water tank circulating water pump P3, a slurry input centrifugal pump P2, a water-sand mixing centrifugal pump P1 and all one-way valves by a management module, slowly emptying water in a test water tank after sediment in the water tank is precipitated to clear water, respectively photographing sediment in a test section by using a camera 1 and a camera 2 in a measuring system, and measuring hydraulic reclamation characteristic parameters such as a hydraulic reclamation range, the maximum hydraulic reclamation thickness and the minimum hydraulic reclamation thickness by using image processing software in the later period, and accurately measuring the hydraulic reclamation thickness of specific measuring points by using a probe; and the key test parameters of the measurement system are used for being arranged and output by the management system in a test data chart.
Step (8) cleaning sediment in a water tank test area, and according to test requirements, key parameters such as the concentration of the conveying slurry, the conveying flow, the height of a hydraulic filling machine from a bottom bed, the external water flow speed, the wave height, the wave period, the moving speed of the hydraulic filling machine and the like can be changed, and the steps (2) - (7) are repeated under a management module, so that the indoor simulation test of the multi-element adjusted movable underwater layered hydraulic filling construction can be realized.
Compared with the prior art, the invention has the following beneficial effects:
according to the indoor simulation device for the movable underwater layered hydraulic reclamation construction, disclosed by the invention, the underwater movable hydraulic reclamation construction mode can be fully simulated in an open sea area by integrating a plurality of special subsystems.
Furthermore, the system and the method can carry out diversified adjustment on the construction environment influences such as stormy waves, currents, water depths and the like, and key construction parameters such as the moving speed of the hydraulic filling device, the distance between the hydraulic filling device and a bottom bed, the flow rate of the conveying slurry, the concentration of the conveying slurry, the types of sediment and the like, realize a multi-layer repeated movable construction simulation technology, and provide an effective means for further researching the high-precision layered hydraulic filling 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 an embodiment 4 of the present invention;
FIG. 2 is a schematic diagram of a mud storage system of embodiment 1;
FIG. 3 is a schematic view of a construction environment simulation system according to example 2;
FIG. 4 is a schematic diagram of a layered hydraulic reclamation apparatus of example 3;
FIG. 5 is a schematic diagram of each mobile module in a three-dimensional power system in a layered hydraulic reclamation apparatus of example 3;
FIG. 6 is a schematic diagram of a control system in a mobile underwater layered hydraulic reclamation indoor simulation intelligent test system in example 5;
Fig. 7 is a flow chart of a method for simulating and testing the indoor construction of the movable underwater layered hydraulic reclamation in the embodiment 6.
Marking:
1 a mud storage system, 2 a layered hydraulic filling device and 3 a construction environment simulation system;
the device comprises a water source pipeline 11, a water-sand mixing pipeline 12, a slurry input pipeline 13, a flexible conveying pipeline 14, a slurry sampling port 15, a clamp 16 and a flange 17; 18 storage bin, 19 solids collection bin;
the device comprises a pipeline with a transverse transition section 21, a pipeline with a vertical pipe 22, a pipeline with a transverse pipe 23, a first longitudinal movement module 24, a second longitudinal movement module 25, a third vertical movement module 26, a 241 rail, a 242 sliding block and a 243 power module;
31 water tank, 32 wave generator, 33 grille, 34 electromagnetic valve and 35 bottom plate;
41 flow meter, 42 flow meter, 43 first camera, 44 second camera, 45 probe.
Detailed Description
The present invention will be described in detail with reference to a plurality of examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way.
As shown in FIG. 1, the movable underwater layered hydraulic reclamation indoor simulation device 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 slurry storage system applied to a movable underwater layered hydraulic reclamation indoor simulation device.
In the invention, the slurry storage system is an important matching device for realizing a movable hydraulic reclamation construction simulation system.
In the prior art, a Chinese patent application CN107780380A indoor simulation hydraulic reclamation construction test device and a test method thereof are provided: the system is applied to an indoor simulated hydraulic reclamation construction test, and comprises the following components: fill mud pipe bag, fill mud pipe bag have a confined space, fill mud pipe bag place in the test tank, fill mud pipe bag upper surface have a set of hydraulic fill pipe, hydraulic fill pipe pass through the thick liquid pipe and be connected with four joints of diverging device respectively, diverging device and conveyor pass through the connecting pipe and be connected. The conveying device comprises: the mud storage device, mud storage device have a jar body space, mud storage device lower part have the landing leg, mud storage device bottom left side install the discharge valve, the mud storage device openly install observation window and level gauge respectively, mud storage device external fixation have the control box, the inside circuit board that is equipped with of control box, the control box surface be equipped with operating button and pilot lamp, mud storage device inside place the slush pump, the slush pump be connected with the control box wire, mud storage device upper portion be fixed with the apron, the apron on the welding have the pipe, the pipe in the middle of install the stop valve, pipe upper portion welding have the feeder.
Chinese patent application CN106592507A is an indoor simulated site sand hydraulic reclamation building device and a hydraulic reclamation method, and is characterized in that: the device comprises a mud storage container, a stirrer, a feeding machine and a mud discharging water pump.
The mud storage device is simple in design, cannot be matched with the mud storage system of the movable underwater layered hydraulic reclamation indoor simulation device, so that the mixing and homogenization of water and sediment are ensured, the supply is stable, the safety and the reliability are ensured, the system test requirements cannot be met, and the flow and the supply of mud cannot be controlled according to the needs.
In the invention, the mud storage system is used for providing stable mud supply for the layered hydraulic filling device through a pipeline after uniformly mixing water and sediment according to a certain proportion.
As shown in fig. 2, the slurry storage system comprises a storage tank 18, a solid collection tank 19 and conveying pipelines, wherein the conveying pipelines comprise 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 mud input centrifugal pump P2 is arranged on the mud input pipeline 13;
wherein the storage tank 18 is used for storing and mixing sediment and water; the storage box 18:
A solid collecting box 19 is arranged above the device for throwing sediment, and the solid collecting box 19 is used for storing sediment raw materials;
water is supplied into the tank through a water source pipeline 11;
a circulation channel is formed by the water and sand mixing pipeline 12 and the water and sand mixing centrifugal pump P1, and the storage box 18, the water and sand mixing pipeline 12 and the water and sand mixing centrifugal pump P1 form a self-circulation system for uniformly mixing water and sediment;
is communicated with the layered hydraulic reclamation device through a slurry input pipeline 13 and a flexible conveying pipeline 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 of water;
further, the water-sand mixing pipeline 12 of the circulating channel is also provided with a water-sand self-circulating pipeline one-way valve F2 for controlling the flow of the water-sand mixture; the self-circulation system is also provided with a mud sampling port 15 provided with a mud sampling port one-way valve F3, and the mud sampling port is used for collecting mud and detecting the mixing uniformity of the mud;
further, the slurry input pipeline 13 is provided with a slurry input centrifugal pump P2 for providing power for inputting slurry, and 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 example, the bottom of the solid collecting box 19 is funnel-shaped, and the center of the bottom is opened and is provided with a solid collecting box one-way valve F5 capable of controlling the opening area.
As an example, the water source pipe 11 is fixed to the top of the storage tank 18 through the clip 16, and is provided with a water source pipe one-way valve F1 for providing stable and controllable water supply;
as an example, the storage tank 18 is connected to the water-sand mixing centrifugal pump P1 after being extended from the lower part thereof through the water-sand mixing pipe 12, and then connected to the top of the storage tank 18 to form a circulation channel; a slurry sampling port 15 is arranged in the water-sand mixing pipeline 12 through a tee joint, and a slurry sampling port one-way valve F3 is arranged for collecting slurry at any time and detecting the uniformity of slurry mixing;
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 filling device cannot be disconnected with a slurry conveying pipeline in the moving process, and the PVC steel wire hose material which is convenient to move, soft and strong in elasticity and is provided with built-in spiral steel wires is selected, and the length enough for the layered hydraulic filling machine to move is reserved; the flange 17 is used for connecting the flexible conveying pipeline 14 and the layered hydraulic filling device;
As an example, a tank attachment ruler R1 is provided on one side of the tank 18 for marking the liquid level.
In the embodiment, the self-circulation system replaces the function of a stirrer, has more safety guarantee and more uniformity, and can obtain the slurry material preparation condition in the storage through the slurry sampling port branch in real time.
Example 2
A construction environment simulation system applied to a movable underwater layered hydraulic reclamation indoor simulation device. In the invention, the construction environment simulation system is a key device for realizing movable hydraulic reclamation construction simulation.
Among the prior art, chinese patent application CN104198365a an electronic seawave environment simulation device relates to environment simulation device, including test chamber, testboard, seawave pond, first supporting bench, first supporting seat, motor, second supporting seat, second supporting bench, make unrestrained board, board axle, the test chamber in the left side installation testboard, the test chamber in the right side set up the seawave pond, seawave pond upper and lower both sides set up first supporting bench and second supporting bench respectively. The motor is utilized to realize the rotation and swing of the wave making plate, so that the simulation of the wave splashing environment is realized quickly, the structure is simple, and the function is limited.
The Chinese patent application CN207056586U is a marine climate environment simulation generating device, wherein a propeller rotates to drive sea water to move, so that marine special climates such as ocean tides, surges and the like can be provided, the marine climates can be displayed more truly and comprehensively, the air blower can simulate the flow of the atmosphere, and the environment of hurricane can be simulated, so that the reproduction of the marine environment in a laboratory is realized, the marine real environment can be simulated, and the marine climate simulation generating device is not suitable for environments strongly related to the marine operation of layered hydraulic reclamation construction.
The construction environment simulation system which is not matched with the movable underwater layered hydraulic filling construction indoor simulation device provided by the invention can not form the wind wave and current environment condition simulation of open sea areas.
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 wind wave and current environment conditions of 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 in the water tank; the water tank 31 is a circulating open water tank, and can be designed to grow by more than one hundred meters, the upper layer is a test area (with a bottom plate 35), the lower layer is a water circulation area, the upper layer and the lower layer are isolated, and the water circulation area is used for supporting and guaranteeing the test area and guaranteeing the circulation of flowing water.
Test area at upper layer: the device comprises a transition section, a test section and a 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, and wave height and period key wave elements can be adjusted; 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 the backflow of outlet water flow so as to influence the test; the transition section and the tail water section are communicated with the water body circulation area at the lower layer.
As an embodiment, the side wall of the test section is made of organic glass or transparent acrylic plate materials.
As an example, the grids 33 are arranged at the inlet end and the outlet end of the test section to prevent test sediment from polluting the lower water circulation zone.
As an example, a test section tape R2 is provided on the side wall of the test section along the height direction of the water tank and the bottom along the length direction of the water tank. Namely: the two directions are respectively provided with a tape 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 circulation area at the lower layer of the water tank and is used for forming sustainable and circulated ocean water flow with flow rate.
As an 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 by the electromagnetic valve 34.
Example 3
A layered hydraulic filling device applied to a movable underwater layered hydraulic filling construction indoor simulation device.
In the invention, the layered hydraulic reclamation device is a core device for realizing movable hydraulic reclamation construction simulation.
In the prior art, a pipeline system (CN 209798867U) for dredging layer hydraulic filling is disclosed by the middle-crossing (Tianjin) dredging engineering Co., ltd: belongs to dredging hydraulic filling construction equipment and is not applied to indoor simulation tests.
Approaching the prior art, chinese patent application CN107780380a: an indoor simulated hydraulic filling construction test device and an experimental method. At present, the traditional indoor hydraulic filling test device is only used for simply carrying out research after water drainage, and does not consider the natural state of transverse runoff and permeation of actual water in the hydraulic filling process, and in order to ensure the operability of the test, the influence of the model structure size and the test mode on the test result is ignored, so that the real construction state is difficult to ensure. In the application of the invention, however, a group of hydraulic filling pipes are arranged on the upper surface of the mud filling pipe bag, the hydraulic filling pipes are arranged in four corners, the hydraulic filling pipes are provided with external threads, the hydraulic filling pipes are respectively connected with four connectors of a flow dividing device through a slurry conveying pipe, and the flow dividing device is connected with the conveying device through connecting pipes. The mobility and flexibility of the device are extremely limited.
As shown in fig. 4, the layered hydraulic filling device comprises a hydraulic filling machine and a three-dimensional power system, wherein the positioning and the movement of the hydraulic filling machine in a water tank are controlled by the three-dimensional power system.
The hydraulic filling machine comprises a transverse transition section pipeline 21, a vertical pipe barrel 22 and a transverse pipe barrel 23;
the hydraulic filling machine is connected with the slurry storage system through the transverse transition section pipeline 21 so as to obtain slurry;
the hydraulic filling machine is connected with a three-dimensional power system through a vertical pipe barrel 22;
the transverse pipe barrel 23 is a terminal of a hydraulic filling machine, is parallel to the width of the water tank, and is provided with a pipe section with a plurality of outflow openings; the hydraulic filling machine conveys slurry to the bottom bed of the water tank through a plurality of outflow openings of the transverse pipe barrel 23 for hydraulic filling simulation test.
As an example, the transverse transition duct 21 is connected to the flexible conveying duct 14 by means of a flange 17.
As shown in fig. 5, the three-dimensional power system is designed as a three-dimensional mobile module, and is respectively: a longitudinal first moving module 24, a transverse second moving module 25, a vertical third moving module 26;
the vertical third moving module 26 carries a hydraulic filling machine terminal to realize vertical height adjustment in the water tank 31, the horizontal second moving module 25 carries the vertical third moving module 26 to realize horizontal width adjustment in the water tank 31, and the longitudinal first moving module 24 carries the horizontal second moving module 25 (simultaneously combined with the third moving module 26 and the hydraulic filling machine terminal) to realize displacement adjustment in the length direction in the water tank 31;
The first longitudinal moving module 24 includes a rail 241, a sliding block 242 with wheels, and a power module 243, the rail 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, and the power module (including a motor drive, a motor, a power supply, etc., which are in 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 and synchronously moves along with the longitudinal first moving module 24 in the length direction of the water tank 31;
the design concept 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, the rail rod is arranged at the upper part of the water tank 31 along the width direction of the water tank, the sliding block with the 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 in the prior art) is arranged on the sliding block and used for driving the whole to move in the width direction of the water tank 31; the vertical third moving module 26 is arranged on the sliding block in 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 comprises a rail rod, a sliding block with wheels and a power module, the rail rod is arranged at the upper part of the water tank 31 along the vertical direction of the water tank, the sliding block with the 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 in the prior art) is arranged on the sliding block and used for driving the whole to move in the vertical direction of the water tank 31; the hydraulic filling machine is arranged on a sliding block in the vertical third moving module 26 and synchronously moves 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 indoor simulation device for the movable underwater layered hydraulic reclamation construction is constructed, and the underwater movable hydraulic reclamation construction mode can be fully simulated in an open sea area.
The movable underwater layered hydraulic filling construction indoor simulation device comprises a slurry storage system, a layered hydraulic filling device, a construction environment simulation system and a measurement system.
The slurry storage system comprises a storage tank 18, a solid collecting tank 19 and a conveying pipeline, wherein the conveying pipeline comprises a water source pipeline 11, a water and 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 mud input centrifugal pump P2 is arranged on the mud input pipeline 13; wherein the storage tank 18 is used for storing and mixing sediment and water; the storage box 18: a solid collecting box 19 is arranged above the device for throwing sediment, and the solid collecting box 19 is used for storing sediment raw materials; water is supplied into the tank through a water source pipeline 11; a circulating channel is formed by the water and sand mixing pipeline 12 and the water and sand mixing centrifugal pump P1, and the storage box, the water and sand mixing pipeline 12 and the water and sand mixing centrifugal pump P1 form a self-circulating system for uniformly mixing water and sediment; is communicated with the layered hydraulic filling device through a slurry input pipeline 13. Further, the mud storage system is also provided with a flow measuring instrument 41. As an example, a tank attachment ruler R1 is provided on one side of the tank 18 for marking 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 wind, wave and current environment conditions of the open sea area. The water tank 31 is used for simulating a construction environment, and a wave generator 32 and a circulating water pump P3 are installed in the water tank; the water tank 31 is a circulating open water tank, the upper layer is a test area, the lower layer is a water circulation area, the upper layer and the lower layer are isolated, and the water circulation area is used for supporting and guaranteeing the test area and guaranteeing the circulation of flowing water. Test area at upper layer: the device comprises a transition section, a test section and a 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 functional area for the test; the transition section and the tail water section are communicated with the water body circulation area at the lower layer. As an example, the grids 33 are arranged at the inlet end and the outlet end of the test section to prevent test sediment from polluting the lower water circulation zone. The circulating water pump P3 is arranged in a water circulation area at the lower layer of the water tank and is used for forming sustainable and circulated ocean water flow with flow rate. As an 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 by the electromagnetic valve 34.
The layered hydraulic filling device comprises a hydraulic filling machine and a three-dimensional power system, and the positioning and the movement of the hydraulic filling machine in the water tank are controlled by the three-dimensional power system. The hydraulic filling machine comprises a transverse transition section pipeline 21, a vertical pipe barrel 22 and a transverse pipe barrel 23; the hydraulic filling machine is connected with the slurry storage system through the transverse transition section pipeline 21 so as to obtain slurry; the hydraulic filling machine is connected with a three-dimensional power system through a vertical pipe barrel 22; the transverse pipe barrel 23 is a terminal of a hydraulic filling machine, is parallel to the width of the water tank, and is provided with a pipe section with a plurality of outflow openings; the hydraulic filling machine conveys slurry to the bottom bed of the water tank through a plurality of outflow openings of the transverse pipe barrel 23 for hydraulic filling simulation test.
The three-dimensional power system is designed as a three-dimensional mobile module and is respectively: a longitudinal first moving module 24, a transverse second moving module 25, 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 horizontal second moving module 25 carries the vertical third moving module 26 to realize horizontal width adjustment in the water tank 31, and the longitudinal first moving module 24 carries the horizontal second moving module 25 to realize displacement adjustment in the length direction in the water tank 31;
The first longitudinal moving module 24 comprises a rail rod, a sliding block with wheels and a power module, the rail rod is arranged at the upper part of the water tank along the length direction of the water tank, the sliding block with the wheels is meshed with the rail rod, and the power module is arranged on the sliding block and used for driving the whole body to move in the length direction of the water tank 31; 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 31 along the width direction of the water tank, the sliding block with the wheels is meshed with the rail rod, and the power module is arranged on the sliding block and used for driving the whole body to move in the width direction of the water tank 31; 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, the rail rod is arranged at the upper part of the water tank 31 along the vertical direction of the water tank, the sliding block with the wheels is meshed with the rail rod, and the power module is arranged on the sliding block and used for driving the whole body to move in the vertical direction of the water tank 31; the hydraulic filling machine is arranged on the sliding block and synchronously displaces along the vertical direction of the water tank along with the vertical third moving module 26.
The measurement system includes an in-situ measurement device; the field measurement apparatus includes a flow measurement instrument 41, a flow 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 conveying mud in real time.
Wherein the flow rate measuring instrument 42 moves through a three-dimensional power system to measure the flow rates of different measuring points.
The first camera 43 is fixed on one side of the test section of the water tank 31 through a camera bracket, 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 (including a tape R2 of the test section of the water tank and a front view of sediment), and is used for shooting front views of sediment along the length direction of the water tank and along the height direction of the water tank after the hydraulic filling test;
the second camera 44 is fixed above the hydraulic filling machine, the camera is opposite to the bottom of the water tank 31, and is used for shooting a top view picture of the sediment along the width direction and the length direction of the water tank after the hydraulic filling test, the shooting position and the range are kept unchanged in the shooting process, 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 (such as Get Data software) at the later stage, and the diffusion range of the sediment, the maximum and minimum thickness of the sediment and other hydraulic filling characteristic parameters can be accurately read by comparing the proportion of the scale R2 to the sediment range and the height of the water tank test section of the picture.
The probe 45 is fixed on the test section of the water tank 31 through a three-dimensional power system and is used for measuring the thickness of 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 which is arranged in the control cabinet 5 (shown in fig. 1) and an intelligent measurement system matched with the control system, so that the mobile type underwater layered hydraulic reclamation indoor simulation intelligent test system is constructed, and an open sea area can be fully simulated to carry out an underwater mobile hydraulic reclamation construction mode.
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, an input module and a calculation module of the control system and is used for obtaining 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 the bottom bed, the outside water flow speed, the wave height and 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 filling simulation parameter, wherein initial values of all parameters are required to be set before a test, and the initial values are target data in the test process. As an example, the various parameters are entered through a system human-machine interface.
The slurry mixing parameters include water quality M w0 Mass Ms of sediment 0 ；
The construction environment simulation parameters comprise the water depth h of a water tank 0 Flow velocity v of water flow 0 Wave height H w0 Sum wave period T w0 ；
The stratified hydraulic filling simulation parameters comprise input slurry concentration C m0 Input mud flow rate Q 0 Initial position (X) of layered hydraulic filling machine 0 ，Y 0 ，Z 0 ) Direction of movement of the layered hydraulic filling machine (D) x0 ，D y0 ，D z0 ) Moving speed (V) of layered hydraulic filling machine x0 ，V y0 ，V z0 ) Distance of travel of the layered hydraulic filling machine (S) x0 ，S y0 ，S z0 ) Distance H between layered hydraulic filling machine and bed bottom b0 。
The control module is divided into a calculation module and a management module;
the calculation module comprises calculation of slurry mixing parameters and position parameters of the layered hydraulic filling machine tool, and is used for providing the calculation parameters to the management module; wherein the slurry mixing parameter is the slurry parameter formed by mixing water and silt, and the slurry concentration C is used m Expressed, the calculation formula is
C m ＝M s /(M s +M w )
Wherein C is m Represents the concentration of mud, ms represents the mass of sediment, M w Representing the water quality.
The management module comprises a slurry mixing management module, a construction environment simulation module, a layered hydraulic filling simulation module and a key parameter measurement module, and is respectively responsible for managing a slurry storage system, a construction environment simulation device and a layered hydraulic filling simulation device, analyzing key test parameters of the measurement system, and finishing and outputting an experimental data chart and a scientific research result. Wherein, the liquid crystal display device comprises a liquid crystal display device,
Specifically, the slurry mixing management module manages the concentration and mixing uniformity of water and silt in the slurry storage system, and initiates a slurry concentration target value C according to the input module m0 ，Ms 0 Represents the initial sediment mass M w0 Representing the initial water mass, mixing water and silt uniformly according to a proportion, obtaining mud with a specific volume V from a mud sampling port, and measuring the sampled mud mass M to obtain the mud concentration C m Conversion formula is as follows
Wherein C is m Indicating mud concentration ρ s Representing the sediment density ρ w Represents water density, M represents sampled mud mass, V represents mud volume.
If C m And C m0 If the error is not more than 5%, the design target is considered to be reached, and if the slurry concentration is required to be changed to C m ' if the water and the sediment are added properly for further mixing, the added sediment mass calculation formula is as follows
Wherein DeltaM s Indicating a target C for achieving a change in slurry concentration m ' added sediment mass, C m ' represents the modified mud concentration, ms 0 Represents the initial sediment mass M w0 Represents the initial water mass, ΔM w Representing the newly added water mass to achieve the mud concentration change objective.
As an example, the slurry mixing uniformity is managed by comparing the mass errors of the slurry sampled at the same time with the mass errors of the slurry sampled at three times to determine the slurry mixing uniformity, and if the mass errors of the slurry sampled at three times are not more than 5%, the slurry mixing uniformity is considered. If the ratio exceeds 5%, water and sediment self-circulation is needed to be carried out through a centrifugal pump continuously until the uniformity degree of the sampled mud meets the requirement, and the mud can be supplied to a layered hydraulic filling device for simulating hydraulic filling.
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 working state of the wave generator so as to meet the set requirements of the test environment.
Specifically, the layered hydraulic filling simulation management module controls and manages the power module in the three-dimensional power system according to the input slurry flow and the position, the moving speed, the direction and the distance setting of the layered hydraulic filling machine.
Specifically, the stratified hydraulic filling simulation management module adjusts the flow by adjusting the opening of the mud input check valve F4, and determines whether the set input mud flow Q is reached by monitoring data of the flow measuring instrument 16 installed in the mud input pipeline 0 . If the monitored flow Q is less than Q 0 If the monitored flow Q is greater than Q, the opening n of the mud input check valve F4 needs to be increased 0 It is necessary to reduce the opening n of the mud input check valve F4. The conversion relationship between the two is as follows:
in which Q 0 Represents the initial input mud flow, n 0 Representing the initial input mud flow Q 0 Corresponding opening degree (n 0 The variation range is 0-1, 0 represents no flow, 1 represents maximum flow); q represents the mud flow monitored in the test process, and n represents the opening of the electromagnetic valve corresponding to the input mud flow Q.
The movement control of the layered hydraulic filling machine tool can obtain the movement speed (V) of the layered hydraulic filling machine tool of the three-dimensional power system in real time through an input module and a 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 filling machine in different speeds, distances and directions so as to reach the target position (X) 1 ，Y 1 ，Z 1 )：
Wherein X is 1 、Y 1 、Z 1 Respectively represent the target positions, X of the layered hydraulic filling machines 0 、Y 0 、Z 0 Respectively representing the initial positions of the layered hydraulic filling machines and S x0 、S y0 、S z0 Respectively representing the moving distance of the layered hydraulic filling machine.
Specifically, the key parameter measurement management module comprises three aspects of management of key hydraulic filling characteristic parameters such as slurry flow, flow rate of water flow measuring points, different characteristic thicknesses of hydraulic filling sediment, hydraulic filling range and the like. For the mud flow rate, the flow rate of the input mud is measured in real time by the flow rate measuring instrument 41. For the water flow measuring point flow rate, the flow measuring instrument 42 is controlled to measure at different water depths of different measuring points. For the blow fill characteristic parameters, measurements are made by controlling the first camera, the second camera, and the probe.
In this embodiment, the measurement system, in combination with the on-site measurement device and the input module and the calculation module of the control system, is used to obtain key test parameters such as the concentration of the test conveying slurry, the conveying flow, the water depth, the distance between the hydraulic filling machine and the bottom bed, the flow velocity of the external water flow, the wave period of the wave high wave, the moving speed of the hydraulic filling machine, and the like.
The field measurement apparatus includes a flow measurement instrument 41, a flow 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 conveying mud in real time.
Wherein the flow rate measuring instrument 42 moves through a three-dimensional power system to measure the flow rates of different measuring points.
The first camera 43 is fixed on one side of the test section of the water tank 31 through a camera bracket, 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 (including a tape R2 of the test section of the water tank and a front view of sediment), and is used for shooting front views of sediment along the length direction of the water tank and along the height direction of the water tank after the hydraulic filling test;
the second camera 44 is fixed above the hydraulic filling machine, the camera is opposite to the bottom of the water tank 31, and is used for shooting a top view picture of the sediment along the width direction and the length direction of the water tank after the hydraulic filling test, the shooting position and the range are kept unchanged in the shooting process, 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 (such as Get Data software) at the later stage, and the diffusion range of the sediment, the maximum and minimum thickness of the sediment and other hydraulic filling characteristic parameters can be accurately read by comparing the proportion of the scale R2 to the sediment range and the height of the water tank test section of the picture.
The probe 45 is fixed on the test section of the water tank 31 through a three-dimensional power system and is used for measuring the thickness of sediment at different measuring points after the test is finished.
Example 6
Based on the indoor simulation intelligent test system of the mobile underwater layered hydraulic reclamation construction of the embodiment 5, the underwater mobile hydraulic reclamation construction mode can be fully simulated in the open sea area, and the simulation test method (shown in fig. 7) which is carried out indoors in the embodiment is further disclosed, the steps comprise:
(1) Key test parameters are designed through an input module: and (3) according to the principles of gravity similarity, geometric similarity and power similarity, 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 the bottom bed, the external water flow velocity, the wave-height wave period, the initial position of the hydraulic filling machine, the moving speed and the like are designed and determined.
(2) Setting water depth, speed and wave conditions through an input module: injecting water into the water tank 31 to the test water depth, starting the water tank circulating water pump P3, setting the state of the electromagnetic valve according to the external flow rate of the test design, and adjusting the flow rate of water in the water tank to be the designed flow rate. And adjusting and setting wave height and wave period parameters of the wave generator as designed wave conditions according to the test wave conditions.
(3) Mixing the uniform slurry by a management module: opening a solid aggregate box one-way valve F5 and a water source pipeline one-way valve F1, injecting sediment and water with fixed proportion and mass into the storage box according to the concentration of test mud, opening a water-sand self-circulation pipeline one-way valve F2, simultaneously opening a water-sand mixing centrifugal pump P1, and detecting the mixing uniformity degree of the mud by taking the mud through a mud sampling port after the operation for 1 min. When sampling, the mud sampling port check valve F3 is opened, the water and sand self-circulation pipeline check valve F2 is synchronously closed, mud is regularly taken through the mud sampling port, the quality of the sampled mud is measured for three times, and the three times of average sampled mud concentration is obtained through conversion. If the concentration of the sampled slurry is basically consistent with the designed concentration, the slurry is considered to be uniformly mixed, otherwise, the sediment and the water are adjusted to be further mixed. After the sampling is finished, immediately closing the mud sampling port check valve F3, synchronously opening the water and sand self-circulation pipeline check valve F2, and always keeping mud continuously circulated in the test process, thereby ensuring that the input mud of the layered hydraulic reclamation machine is evenly mixed.
(4) Starting a first layer of mobile hydraulic filling through a management module: the mud input check valve F4 and the mud input centrifugal pump P2 are opened, and the opening of the mud input check valve F4 is controlled so that the mud flow of the mud input pipeline measured by the flow measuring instrument 41 is a set flow. The moving speed, the moving direction and the moving distance of the three-dimensional power system of the layered hydraulic filling device are set, so that the hydraulic filling machine is synchronously controlled to move along the water tank direction according to the set moving speed by controlling the three-dimensional power system provided with the hydraulic filling machine until reaching the set position, and the first-layer movable hydraulic filling process is simulated. During the test, the flow rate measuring instrument 42 is controlled to measure the flow rate at the specific water depth of the specific measuring point according to the test requirement, so as to measure the flow field change.
(5) The first layer mobile hydraulic filling is completed through the management module: when the hydraulic filling machine moves to the set moving distance end position, the slurry input centrifugal pump P2 is closed, the moving speed, moving direction and moving distance of the three-dimensional power system of the layered hydraulic filling device are reset, so that the hydraulic filling machine is controlled to move to the initial position as quickly as possible by controlling the three-dimensional power system of the hydraulic filling machine under the condition that sediment is not disturbed, and a special person is required to assist the steel wire hose conveying pipeline to synchronously move and ensure that the connection is not disconnected during the moving of the layered hydraulic filling device.
(6) Repeating the steps (4) - (5) through the management module until the indoor simulation test of the movable underwater layered hydraulic reclamation construction of the target n layers (n is more than or equal to 1) is realized;
(7) Measuring characteristic parameters of the hydraulic filling test by a measuring system: after the indoor simulation test of the multilayer movable underwater layered hydraulic filling construction under the working condition is finished, stopping the test, closing a wave generator 32, a water tank circulating water pump P3, a slurry input centrifugal pump P2, a water-sand mixing centrifugal pump P1 and all one-way valves by a management module, slowly emptying water in a test water tank after sediment in the water tank is precipitated to clear water, respectively photographing sediment in a test section by using a camera 1 and a camera 2 in a measuring system, and measuring hydraulic filling characteristic parameters such as a hydraulic filling range, the maximum hydraulic filling thickness, the minimum hydraulic filling thickness and the like by using image processing software in the later period, and accurately measuring the hydraulic filling thickness of a specific measuring point by using a probe; and the key test parameters of the measurement system are used for being arranged and output by the management system in a test data chart.
(8) The sediment in the water tank test area is cleaned, key parameters such as the concentration of the conveying mud, the conveying flow, the height of the hydraulic reclamation tool from the bottom bed, the flow velocity of external water, the wave height, the wave period, the moving speed of the hydraulic reclamation tool and the like can be changed according to test requirements, and the steps (2) - (7) are repeated under the management module, so that the multi-element adjustment movable underwater layered hydraulic reclamation indoor simulation test can be realized.
Example 7
The length scale of the application test is 1:10, the test design parameters and prototype parameters are shown in Table 1.
Table 1 this example parameter table
(2) The water tank 31 is filled with water to the test water depth, the circulating water pump P3 is started, the rotating speed of the electromagnetic valve 34 is set according to the external flow rate of the test design, and the flow rate of the water in the water tank is adjusted to be 0.237m/s of the design flow rate.
(3) The solid aggregate box check valve F5 and the water source pipeline check valve F1 are opened, sediment and water with fixed proportion and mass are injected into the storage box according to the concentration of test mud, the water-sand self-circulation pipeline check valve F2 is opened, the water-sand mixing centrifugal pump P1 is opened simultaneously, and after the operation for 1min, mud is taken through the mud sampling port 15 to detect the mud mixing uniformity degree. When sampling, the mud sampling port check valve F3 is opened, the water and sand self-circulation pipeline check valve F2 is synchronously closed, mud is regularly taken through the mud sampling port, the quality of the sampled mud is measured for three times, and the three times of average sampled mud concentration is obtained through conversion. If the concentration of the sampled slurry is basically consistent with the designed concentration of 20%, the slurry is considered to be uniformly mixed at the moment, otherwise, the sediment and the water are adjusted to be further mixed. After the sampling is finished, immediately closing the mud sampling port check valve F3, synchronously opening the water and sand self-circulation pipeline check valve F2, and always keeping mud continuously circulated in the test process, thereby ensuring that the input mud of the layered hydraulic reclamation machine is evenly mixed.
(4) The mud input check valve F4 and the mud input centrifugal pump P2 are opened, and the opening of the mud input check valve F4 is controlled so that the mud flow of the mud input pipeline measured by the flow measuring instrument 41 is 0.006m of the set flow 3 And/s. The initial position, the moving speed, the moving direction and the moving distance of the three-dimensional power system are set, so that the three-dimensional power system provided with the hydraulic filling machine is controlled to synchronously control the hydraulic filling machine to move along the direction of the water tank according to the set moving speed until the hydraulic filling machine reaches the set position, and the first-layer movable hydraulic filling process is simulated. In the test process, according to the test requirement, a flow rate measuring instrument is controlled to measure the flow rate at the specific water depth of a specific measuring point, so as to measure the flow field change.
(5) When the hydraulic filling machine moves to the set moving distance end position, the slurry input centrifugal pump P2 is closed, and the moving speed, moving direction and moving distance of the three-dimensional power system are reset, so that the hydraulic filling machine can be controlled to move to the initial position as quickly as possible by controlling the three-dimensional power system provided with the hydraulic filling machine under the condition that sediment is not disturbed, and a special person is required to assist the steel wire hose conveying pipeline to synchronously move and ensure that the hydraulic filling machine is not disconnected during the moving period of the layered hydraulic filling device.
(6) Repeating the steps (4) - (5) until the indoor simulation test of the target 3-layer movable underwater layered hydraulic reclamation construction is realized;
(7) After the indoor simulation test of the multilayer movable underwater layered hydraulic reclamation construction under the working condition is finished, stopping the test, closing a wave generator, a water tank circulating water pump P3, a slurry input centrifugal pump P2, a water-sand mixing centrifugal pump P1 and all one-way valves, slowly discharging water in a test water tank after sediment in the water tank is settled to clear water, respectively photographing sediment in a test section by utilizing a first camera 43 and a second camera 44, and measuring hydraulic reclamation characteristic parameters such as a hydraulic reclamation range, maximum hydraulic reclamation thickness and the like by utilizing image processing software at a later stage, and accurately measuring the hydraulic reclamation thickness of a specific measuring point by utilizing a probe 45.
(8) And (3) cleaning sediment in a water tank test area, and according to test requirements, key parameters such as the concentration of the conveying mud, the conveying flow, the height of the hydraulic filling machine from a bottom bed, the flow rate of external water flow, the wave height, the wave period, the moving speed of the hydraulic filling machine and the like can be changed, and the steps (2) - (7) are repeated, so that the multi-element adjustment movable underwater layered hydraulic filling construction indoor simulation test can be realized.
In conclusion, the simulation device and the test method can be used for simulating the construction environment of stormy waves and currents indoors, meanwhile, the movable layered hydraulic filling with uniform slurry mixing is guaranteed, and scientific means are provided for deep research on accurate hydraulic filling.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention.

Claims (9)

1. The indoor simulation test method for the movable underwater layered hydraulic reclamation construction is characterized by comprising the following steps of:
step (1) key test parameters are designed through an input module;
setting water depth, speed and wave conditions through an input module;
step (3), uniformly mixing the slurry through a management module;
step (4), starting a first layer of mobile hydraulic reclamation through a management module;
step (5) completing the first layer of mobile hydraulic reclamation through a management module;
step (6), repeating the steps (4) - (5) through a management module;
measuring characteristic parameters of a hydraulic filling test by a measuring system;
and (8) cleaning sediment in the water tank test area.
2. A simulation test method according to claim 1, wherein: step (1) key test parameters are designed through an input module: and (3) according to the principles of gravity similarity, geometric similarity and power similarity, key test parameters such as the concentration of the test conveying slurry, the conveying flow, the water depth, the distance from the hydraulic filling machine to the bottom bed, the external water flow velocity, the wave-height wave period, the initial position of the hydraulic filling machine and the moving speed are designed and determined.
3. A simulation test method according to claim 1, wherein: step (2) setting water depth, speed and wave conditions through an input module: injecting water into the water tank (31) to the test water depth, starting the water tank circulating water pump P3, setting an electromagnetic valve state according to the external flow rate of the test design, and adjusting the flow rate of water in the water tank to be the design flow rate; and adjusting and setting wave height and wave period parameters of the wave generator as designed wave conditions according to the test wave conditions.
4. A simulation test method according to claim 1, wherein: step (3) uniformly mixing mud through a management module: opening a solid aggregate box one-way valve F5 and a water source pipeline one-way valve F1, injecting sediment and water with fixed proportion and mass into a storage box according to the concentration of test mud, opening a water-sand self-circulation pipeline one-way valve F2, simultaneously opening a water-sand mixing centrifugal pump P1, and taking mud through a mud sampling port after running for 1min to detect the mixing uniformity degree of the mud; when sampling is performed, a mud sampling port one-way valve F3 is opened, a water and sand self-circulation pipeline one-way valve F2 is synchronously closed, mud is regularly taken through a mud sampling port, the quality of the sampled mud is measured for three times, and the three times of average sampled mud concentration is obtained through conversion; if the concentration of the sampled slurry is basically consistent with the designed concentration, the slurry is considered to be uniformly mixed at the moment, otherwise, the sediment and the water are adjusted to be further mixed; after the sampling is finished, immediately closing the mud sampling port check valve F3, synchronously opening the water and sand self-circulation pipeline check valve F2, and always keeping mud continuously circulated in the test process, thereby ensuring that the input mud of the layered hydraulic reclamation machine is evenly mixed.
5. A simulation test method according to claim 1, wherein: step (4) starting a first layer of mobile hydraulic reclamation through a management module: opening a mud input one-way valve F4 and a mud input centrifugal pump P2, and controlling the opening of the mud input one-way valve F4 to enable the mud flow of a mud input pipeline measured by a flow measuring instrument (41) to be a set flow; setting the moving speed, the moving direction and the moving distance of a three-dimensional power system of the layered hydraulic filling device, so that the hydraulic filling machine is synchronously controlled to move along the water tank direction according to the set moving speed by controlling the three-dimensional power system provided with the hydraulic filling machine until reaching a set position, and simulating the first layer movable hydraulic filling process; in the test process, a flow rate measuring instrument (42) is controlled to measure the flow rate at the specific water depth of the specific measuring point according to the test requirement, and the flow rate measuring instrument is used for measuring the flow field change.
6. A simulation test method according to claim 1, wherein: step (5) completing first-layer movable hydraulic reclamation through a management module: when the hydraulic filling machine moves to the set moving distance end position, the slurry input centrifugal pump P2 is closed, the moving speed, moving direction and moving distance of the three-dimensional power system of the layered hydraulic filling device are reset, so that the hydraulic filling machine is controlled to move to the initial position as quickly as possible by controlling the three-dimensional power system of the hydraulic filling machine under the condition that sediment is not disturbed, and a special person is required to assist the steel wire hose conveying pipeline to synchronously move and ensure that the connection is not disconnected during the moving of the layered hydraulic filling device.
7. A simulation test method according to claim 1, wherein: and (6) repeating the steps (4) - (5) through a management module until the indoor simulation test of the movable underwater layered hydraulic reclamation construction of the target n layers (n is more than or equal to 1) is realized.
8. A simulation test method according to claim 1, wherein: step (7), measuring characteristic parameters of the hydraulic filling test by a measuring system: after the indoor simulation test of the multilayer movable underwater layered hydraulic filling construction under the working condition is finished, stopping the test, closing a wave generator (32), a water tank circulating water pump P3, a slurry input centrifugal pump P2, a water-sand mixing centrifugal pump P1 and all one-way valves by a management module, slowly emptying water in a test water tank after sediment in the water tank is precipitated to clear water, respectively photographing sediment in a test section by using a camera 1 and a camera 2 in a measuring system, and measuring hydraulic filling characteristic parameters such as a hydraulic filling range, the maximum hydraulic filling thickness, the minimum hydraulic filling thickness and the like by using image processing software in the later period, and accurately measuring the hydraulic filling thickness of a specific measuring point by using a probe; and the key test parameters of the measurement system are used for being arranged and output by the management system in a test data chart.
9. A simulation test method according to claim 1, wherein: step (8) cleaning sediment in a water tank test area, and according to test requirements, key parameters such as the concentration of the conveying slurry, the conveying flow, the height of a hydraulic filling machine from a bottom bed, the external water flow speed, the wave height, the wave period, the moving speed of the hydraulic filling machine and the like can be changed, and the steps (2) - (7) are repeated under a management module, so that the indoor simulation test of the multi-element adjusted movable underwater layered hydraulic filling construction can be realized.
CN202310227789.3A 2022-06-02 2022-06-02 Indoor simulation test method for movable underwater layered hydraulic reclamation construction Pending CN116575386A (en)

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