A mobile underwater layered filling construction indoor simulation intelligent test system

Abstract

A mobile underwater layered filling construction indoor simulation intelligent test system includes a control system and a measurement system. By integrating multiple specialized subsystems, it can fully simulate underwater mobile filling construction methods in open waters. This mobile underwater layered filling construction indoor simulation intelligent test system can adjust the construction environment's impacts, such as wind, waves, currents, and water depth, as well as key construction parameters such as the filling device's movement speed, distance from the bottom, slurry flow rate, slurry concentration, and sediment type. This system implements multi-layer, repetitive mobile construction simulation technology, providing an effective means for in-depth research on high-precision layered filling technology and improving construction efficiency and management quality.

Description

[0001] This application is a division of Chinese patent application 2022106235908 “A mobile indoor simulation device for underwater layered filling construction”. Technical Field

[0002] The invention belongs to the field of indoor simulation test of blown filling construction. Background Art

[0003] With the rapid development of dredging and filling projects, the demands and restrictions on construction conditions for dredging and filling projects are constantly increasing. The current commonly used direct filling construction method in China does not take into account the differences in fill soil quality and is relatively rough. It fills from a fixed point and then gradually advances. This leads to poor backfill flatness and difficulty in subsequent foundation treatment. It cannot meet the requirements of refined control of fill construction, high efficiency, and environmentally friendly dredging. The layered filling construction method addresses these shortcomings. According to the requirements of the project filling and the characteristics of the sand source, the thickness of each layer is designed. The configured layered filling device is used for precise control to achieve the goal of accurately laying the fill material layer by layer to the predetermined construction location on the bottom of the water. However, due to the complex construction process, this method is currently limited to applications in projects with good construction conditions. For open sea areas with complex hydrological and meteorological environmental conditions such as deep water and those affected by wind and waves, the existing filling construction experience and technology are insufficient to meet the requirements of refined control of layered filling construction under such conditions. How to control and achieve high-precision layered filling construction still requires further systematic research. The patent of this invention provides a mobile underwater layered filling construction indoor simulation device and test method, which can accurately simulate the actual mobile layered filling construction method and effect, has strong operability and diversified adjustment, and provides an effective means for in-depth research on high-precision layered filling technology, improving construction efficiency and management quality.

[0004] Through searching the existing indoor simulation filling technology, it was found that in response to the research needs of underwater mobile filling construction technology in open sea areas affected by hydrological and meteorological environments such as wind, waves and currents, the existing filling construction simulation test equipment and test methods generally have defects such as directional and fixed-point filling, inability to simulate the wind, wave and current construction environment, and inability to effectively ensure the uniformity of the transported mud mixing. They cannot meet the requirements for refined control simulation of mobile layered filling. Summary of the Invention

[0005] The purpose of the present invention is to disclose a design technical scheme for a mobile underwater layered filling construction indoor simulation device, including a mud storage system, a layered filling device, and a construction environment simulation system, so as to respectively construct a mobile underwater layered filling construction indoor simulation device.

[0006] Furthermore, the present invention aims to provide a mobile underwater layered filling construction indoor simulation device that can fully simulate the actual mobile layered filling construction method.

[0007] Furthermore, the present invention aims to provide a mobile indoor intelligent simulation test system for underwater layered filling construction.

[0008] Furthermore, the present invention aims to develop an intelligent indoor simulation test method for mobile underwater layered filling. This method fully simulates actual mobile layered filling construction methods and allows for diversified adjustments to construction environmental factors such as wind, waves, currents, and water depth, as well as key construction parameters such as the filling device's travel speed, distance from the bottom, slurry flow rate, slurry concentration, and sediment type. This provides an effective means for in-depth research into high-precision layered filling technology, improving construction efficiency and management quality.

[0009] To achieve the above purpose, the technical solution of the present invention is as follows:

[0010] A mobile underwater layered filling construction indoor simulation intelligent test system, characterized by: including a control system, a measurement system,

[0011] The control system includes an input module, a control module, and an execution module. The execution module is used to simulate an underwater mobile filling construction method in open sea areas and is designed as a mobile underwater layered filling construction indoor simulation device, including a mud storage system, a layered filling device, and a construction environment simulation system.

[0012] The measuring system is used to obtain key test parameters such as test mud concentration, delivery flow, water depth, height of the blowing and filling equipment from the bottom bed, external water flow velocity, wave height and wave period, and moving speed of the blowing and filling equipment.

[0013] The simulation intelligent test system is characterized by:

[0014] The input module includes three parts: mud mixing parameters, construction environment simulation parameters and layered filling simulation parameters. The initial value of each parameter needs to be set before the test, which is the target data during the test.

[0015] The mud mixing parameters include water mass M w0 , sediment mass Ms0;

[0016] The construction environment simulation parameters include the water depth h0, water flow velocity v0, wave height H w0 Sum wave period T w0 ;

[0017] The layered filling simulation parameters include the input mud concentration C m0 , input mud flow Q0, initial position of layered filling equipment (X0, Y0, Z0), moving direction of layered filling equipment (D x0 , D y0 , D z0), moving speed of layered blowing filling equipment (V x0 , V y0 , V z0 ), layered filling equipment moving distance (S x0 , S y0 , S z0 ), the distance between the layered filling machine and the bed bottom H b0 .

[0018] The simulation intelligent test system is characterized in that: the control module is divided into a calculation module and a management module;

[0019] The calculation module includes the calculation of mud mixing parameters and layered filling equipment position parameters, which are used to provide to the management module; wherein the mud mixing parameters refer to the mud parameters of the mixture of water and sediment, and the mud concentration C is used to calculate the mud mixing parameters. m The calculation formula is

[0020] C m =M s / (M s +M w )

[0021] Where C m Indicates mud concentration, Ms indicates sediment mass, M w Indicates water quality;

[0022] The management module includes four parts: mud mixing management module, construction environment simulation module, layered filling simulation module and key parameter measurement module, which are responsible for the management of mud storage system, construction environment simulation and layered filling simulation device, as well as analyzing the key test parameters of the measurement system and compiling and outputting experimental data charts and scientific research results.

[0023] The simulation intelligent test system is characterized in that: the mud mixing management module manages the concentration and mixing uniformity of water and sediment in the mud storage system, and inputs the initial mud concentration target value C m0 , Ms0 represents the initial sediment mass, M w0 Represents the initial water mass. Mix water and sediment in proportion. Obtain a specific volume V of mud from the mud sampling port and measure the sampled mud mass M. The mud concentration C is m The conversion formula is

[0024]

[0025] Where C m represents the mud concentration, ρ s represents the sediment density, ρ w represents water density, M represents the mass of sampled mud, and V represents the volume of mud.

[0026] If C m with C m0 If the error does not exceed 5%, it is considered that the design goal has been achieved. If the mud concentration needs to be changed to C m ', then it is necessary to add more water and sediment to further mix. The formula for calculating the added sediment mass is:

[0027]

[0028] Where, ΔM s In order to achieve the mud concentration change target C m 'The newly added sediment mass, C m ' represents the changed mud concentration, Ms0 represents the initial sediment mass, M w0 represents the initial water mass, ΔM w Indicates the mass of water added to achieve the target mud concentration change.

[0029] The construction environment simulation module manages and adjusts the working status of the water tank circulation pump P3, the solenoid valve status, and the wave maker to meet the setting requirements of the test environment.

[0030] Specifically, the layered filling simulation management module controls and manages the power modules in the three-dimensional power system according to the input mud flow and the layered filling equipment position, moving speed, direction and distance settings.

[0031] Specifically, the stratified filling simulation management module adjusts the flow rate by controlling the opening of the mud input check valve F4. The flow measurement instrument installed in the mud input pipeline monitors data to determine whether the set input mud flow rate Q0 has been reached. If the monitored flow rate Q is less than Q0, the mud input check valve F4 opening n needs to be increased. If the monitored flow rate Q is greater than Q0, the mud input check valve F4 opening n needs to be decreased. The conversion relationship between the two is as follows:

[0032]

[0033] Where Q0 represents the initial input mud flow rate, n0 represents the opening corresponding to the initial input mud flow rate Q0 (n0 varies from 0 to 1, 0 represents no flow, and 1 represents the maximum flow rate); Q represents the mud flow rate monitored during the test, and n represents the solenoid valve opening corresponding to the input mud flow rate Q.

[0034] For the movement control of the layered blowing filling machine, the moving speed (V x , V y , V z ), distance (S x , S y, S z ) and direction (D x , D y , D z ) to control the movement of the layered blowing filling machine at different speeds, distances and directions to reach the target position (X1, Y1, Z1):

[0035]

[0036] Where X1, Y1, and Z1 represent the target positions of the layered filling machine, X0, Y0, and Z0 represent the initial positions of the layered filling machine, and S x0 、S y0 、S z0 They respectively represent the moving distances of the layered filling equipment.

[0037] The key parameter measurement and management module manages three key filling characteristic parameters: mud flow, flow velocity at water flow measurement points, and different characteristic thicknesses and filling ranges of the filled mud. Mud flow is measured in real time using a flow meter. Water flow velocity is measured at different measurement points and depths by controlling the flow meter. Fill characteristic parameters are measured by controlling the first and second cameras and the probe.

[0038] The measurement system, combined with on-site measurement equipment and utilizing the input module and calculation module of the control system, is used to obtain key test parameters such as the test mud concentration, delivery flow, water depth, height of the blowing and filling equipment from the bottom bed, external water flow velocity, wave height and wave period, and movement speed of the blowing and filling equipment.

[0039] The on-site measurement equipment includes a flow measurement instrument, a flow velocity measurement instrument, a first camera, a second camera, and a probe.

[0040] Among them, the flow measuring instrument is used to display the mud flow information in real time.

[0041] Among them, the flow rate measuring instrument moves through a three-dimensional power system to measure the flow rate at different measuring points.

[0042] The first camera is fixed to one side of the flume test section via a camera bracket, facing the sidewall of the flume to ensure that the shooting range covers the entire test section (including the flume test section ruler R2 and the front view of the deposited sediment). It is used to take front views of the sediment deposited along the length and height of the flume after the blown fill test.

[0043] Among them, the second camera is fixed above the filling equipment, and the camera is facing the bottom of the water tank. It is used to take overhead photos of the deposited sediment along the width and length of the water tank after the filling test. The shooting position and range are kept unchanged during the shooting process, and the pixel size is set to a uniform size. In this way, the front view and overhead view photos of the deposited sediment of each working condition can be processed and analyzed later using image processing software (such as Get Data software). By comparing the scale R2 of the water tank test section of the picture and the ratio of the deposited sediment range and height, the diffusion range of the deposited sediment, the maximum and minimum thickness of the deposited sediment and other filling characteristic parameters can be accurately read.

[0044] Among them, the probe is fixed in the water flume test section through a three-dimensional power system, and is used to measure the thickness of sediment at different measuring points after the test.

[0045] Example 4 Technical Solution

[0046] A mobile underwater layered filling construction indoor simulation device is characterized by comprising a mud storage system, a layered filling device, a construction environment simulation system, and a measurement system.

[0047] The mud storage system includes a storage box, a solid aggregate box, and a conveying pipeline, wherein the conveying pipeline includes a water source pipeline, a water-sand mixing pipeline, and a mud input pipeline; a water-sand mixing centrifugal pump P1 is provided on the water-sand mixing pipeline, and a mud input centrifugal pump P2 is provided on the mud input pipeline; wherein, the storage box is used to store and mix mud and water; the storage box: mud is added to it by providing a solid aggregate box above it, and the solid aggregate box is used to store mud raw materials; water is supplied to the box through a water source pipeline; a circulation channel is formed through the water-sand mixing pipeline and the water-sand mixing centrifugal pump P1, and the storage box, the water-sand mixing pipeline, and the water-sand mixing centrifugal pump P1 constitute a self-circulating system for evenly mixing water and mud; and it is connected to the layered blowing and filling device through the mud input pipeline.

[0048] The construction environment simulation system simulates the ocean through a water tank, simulating the wind, wave, and current environmental conditions of the open sea. The water tank, used to simulate the construction environment, is equipped with a wave maker and a circulating water pump P3. The water tank is an open circulating water tank, with the upper layer serving as the test area and the lower layer as the water circulation area. The two layers are isolated, and the water circulation area is used to support and safeguard the test area, ensuring the circulation of flowing water. The upper test area is divided into a transition section, a test section, and a tailwater section. The wave maker is installed at the front end of the transition section to simulate wave conditions along the length of the water tank. The transition section provides uniform and stable water flow conditions for the test section, which serves as the main functional area for testing. The transition section and tailwater section are connected to the water circulation area in the lower layer. The circulating water pump P3 is located in the water circulation area in the lower layer of the water tank to generate sustainable, recyclable water that can simulate ocean currents with a flow rate.

[0049] The layered filling device includes a filling machine and a three-dimensional power system, whose positioning and movement within the water flume are controlled by the three-dimensional power system. The filling machine includes a transverse transition pipe, a vertical tube, and a transverse tube. The filling machine is connected to the mud storage system via the transverse transition pipe to obtain mud. The filling machine is connected to the three-dimensional power system via the vertical tube. The transverse tube is the terminal end of the filling machine, a pipe section parallel to the width of the water flume, and has multiple outlets. The filling machine delivers mud to the water flume bed through the multiple outlets of its transverse tube to perform the filling simulation test.

[0050] The three-dimensional power system is designed as a three-dimensional mobile module, namely: a longitudinal first mobile module, a transverse second mobile module, and a vertical third mobile module; wherein the vertical third mobile module carries the blowing and filling equipment to realize vertical height adjustment in the water tank, the transverse second mobile module carries the vertical third mobile module to realize transverse width adjustment in the water tank, and the longitudinal first mobile module carries the transverse second mobile module to realize displacement adjustment in the length direction in the water tank.

[0051] The measurement system includes on-site measurement equipment; the on-site measurement equipment includes a flow measuring instrument, a flow velocity measuring instrument, a first camera, a second camera and a probe; wherein the flow measuring instrument is used to display the mud flow information in real time; wherein the flow velocity measuring instrument is moved by a three-dimensional power system to achieve measurement of flow velocity at different measuring points; wherein the probe is fixed to the water flume test section by the three-dimensional power system, and is used to measure the thickness of deposited sediment at different measuring points after the test is completed.

[0052] The first camera is fixed to one side of the water flume test section through a camera bracket, facing the side wall of the water flume to ensure that the shooting range is the entire test section (including the water flume test section ruler R2 and the front view of the deposited sediment). It is used to take front view photos of the deposited sediment along the length and height directions of the water flume after the filling test.

[0053] The second camera is fixed above the filling machine, and the camera is facing the bottom of the water tank. It is used to take overhead photos of the deposited sediment along the width and length of the water tank after the filling test. The shooting position and range are kept unchanged during the shooting process, and the pixel size is set to a uniform size. In this way, the front view and overhead view photos of the deposited sediment under each working condition can be processed and analyzed using image processing software later. By comparing the scale R2 of the water tank test section of the image and the ratio of the deposited sediment range and height, the diffusion range of the deposited sediment, the maximum and minimum thickness of the deposited sediment and other filling characteristic parameters can be accurately read.

[0054] As an embodiment, a storage box ruler R1 is provided on one side of the storage box for marking the liquid level.

[0055] As an example, grids are set at both ends of the test section to prevent the test sediment from polluting the water circulation area below.

[0056] As an embodiment, the circulating water pump serves as a water flow power device and can control the flow rate of the external water flow through a solenoid valve.

[0057] Based on the same structural design, the longitudinal first movable module and the transverse second movable module include a rail rod, a sliding block with wheels, and a power module. The rail rod is arranged on the upper part of the water tank along the length direction of the water tank, the sliding block with wheels engages with the rail rod, and the power module is installed on the sliding block to drive the overall displacement in the length direction of the water tank; the transverse second movable module is installed on the sliding block and synchronously displaces along with the longitudinal first movable module in the length direction of the water tank.

[0058] Based on the same structural design, the second horizontal movable module includes a rail rod, a sliding block with wheels, and a power module. 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 wheels engages with the rail rod. The power module is installed on the sliding block to drive the overall displacement in the width direction of the water tank; the vertical third movable module is installed on the sliding block and synchronously displaces with the second horizontal movable module in the width direction of the water tank.

[0059] Based on the same structural design, the vertical third movable module includes a rail rod, a sliding block with wheels, and a power module. The rail rod is arranged on the upper part of the water trough along the vertical direction of the water trough, the sliding block with wheels engages with the rail rod, and the power module is installed on the sliding block to drive the overall displacement in the vertical direction of the water trough; the blowing and filling equipment is installed on the sliding block and synchronously displaces the vertical third movable module in the vertical direction of the water trough.

[0060] Compared with the prior art, the present invention has the following beneficial effects:

[0061] The present invention provides a mobile underwater layered filling construction indoor simulation device, which can fully simulate the underwater mobile filling construction method in open sea areas by integrating multiple special subsystems.

[0062] Furthermore, the system and method of the present invention can make diversified adjustments to the construction environment such as wind waves, currents, water depth, and key construction parameters such as the moving speed of the filling device, the distance from the bottom bed, the mud flow rate, the mud concentration, and the type of sediment, thereby realizing multi-layer repeated moving construction simulation technology, providing an effective means for in-depth research on high-precision layered filling technology, improving construction efficiency and management quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 This is a schematic diagram of an indoor simulation intelligent test system for mobile underwater layered filling construction according to Example 4 of the present invention;

[0064] Figure 2 Schematic diagram of the mud storage system of Example 1;

[0065] Figure 3 Schematic diagram of the construction environment simulation system of Example 2;

[0066] Figure 4 Schematic diagram of the layered blowing and filling device of Example 3;

[0067] Figure 5 Schematic diagram of each moving module in the three-dimensional power system of the layered blowing and filling device of Example 3;

[0068] Figure 6 This is a schematic diagram of the control system in the indoor simulation intelligent test system for mobile underwater layered filling construction in Example 5;

[0069] Figure 7 This is a flow chart of the indoor simulation test method for mobile underwater layered filling construction in Example 6.

[0070] Marking Description:

[0071] 1. Mud storage system, 2. Layered filling device, 3. Construction environment simulation system;

[0072] 11 water source pipeline, 12 water-sand mixing pipeline, 13 mud input pipeline, 14 flexible conveying pipeline, 15 mud sampling port, 16 clamp, 17 flange; 18 storage box, 19 solid aggregate box;

[0073] 21 lateral transition section pipe, 22 vertical tube, 23 lateral tube, 24 longitudinal first movable module, 25 lateral second movable module, 26 vertical third movable module, 241 rail, 242 sliding block, 243 power module;

[0074] 31 water tank, 32 wave maker, 33 grille, 34 solenoid valve, 35 bottom plate;

[0075] 41 Flow measuring instrument, 42 Flow velocity measuring instrument, 43 First camera, 44 Second camera, 45 Probe. DETAILED DESCRIPTION

[0076] The present invention will be described in detail below with reference to a number of embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form.

[0077] like Figure 1 As shown, the mobile underwater layered filling construction indoor simulation device includes a mud storage system, a layered filling device, a construction environment simulation system, and a measurement system. Figure 1 The overall structure and scene are illustrated.

[0078] Example 1

[0079] A mud storage system used in a mobile underwater layered filling construction indoor simulation device.

[0080] In the present invention, the mud storage system is an important supporting device for realizing a mobile blown filling construction simulation system.

[0081] In the prior art, Chinese patent application CN107780380A discloses an indoor simulated blowing and filling construction test device and test method: the device is applied to an indoor simulated blowing and filling construction test, and the system comprises a mud filling tube bag, the mud filling tube bag has a closed space, the mud filling tube bag is placed in a test tank, the upper surface of the mud filling tube bag has a group of blowing and filling pipes, the blowing and filling pipes are respectively connected to the four joints of the diversion device through the slurry delivery pipe, and the diversion device is connected to the conveying device through a connecting pipe. The conveying device includes: a mud storage tank, the mud storage tank has a tank space, the lower part of the mud storage tank has support legs, a discharge valve is installed on the left side of the bottom of the mud storage tank, an observation window and a liquid level gauge are installed on the front of the mud storage tank, a control box is fixed to the outside of the mud storage tank, a circuit board is installed inside the control box, operation buttons and indicator lights are installed on the outer surface of the control box, a mud pump is placed inside the mud storage tank, the mud pump is connected to the control box wire, a cover plate is fixed to the upper part of the mud storage tank, a conduit is welded on the cover plate, a stop valve is installed in the middle of the conduit, and a feeder is welded on the upper part of the conduit.

[0082] Chinese patent application CN106592507A discloses an indoor simulated on-site sand filling construction device and a filling method, which is characterized in that it includes a mud storage container, a mixer, a loader, and a mud discharge pump.

[0083] The above-mentioned existing technologies and mud storage equipment are all very simple in design and cannot be matched with the mud storage system of the mobile underwater layered filling construction indoor simulation device of the present invention to ensure the uniform mixing of water and mud, stable supply, safety and reliability. They are also unable to adapt to the system test requirements and cannot control the flow and supply of mud as needed.

[0084] In the present invention, the mud storage system is used to mix water and mud in a certain proportion and then provide a stable mud supply to the layered filling device through pipelines.

[0085] like Figure 2 As shown, the mud storage system includes a storage box 18, a solid aggregate box 19, and a conveying pipeline, wherein the conveying pipeline includes a water source pipeline 11, a water-sand mixing pipeline 12, a mud input pipeline 13, and a flexible conveying pipeline 14; a water-sand mixing centrifugal pump P1 is provided on the water-sand mixing pipeline 12, and a mud input centrifugal pump P2 is provided on the mud input pipeline 13;

[0086] The storage box 18 is used to store and mix sediment and water; the storage box 18:

[0087] A solid aggregate box 19 is provided above the solid aggregate box to feed the sediment therein, and the solid aggregate box 19 is used to store the sediment raw materials;

[0088] Water is supplied to the box through the water source pipe 11;

[0089] A circulation channel is formed by the water-sand mixing pipe 12 and the water-sand mixing centrifugal pump P1. The storage box 18, the water-sand mixing pipe 12 and the water-sand mixing centrifugal pump P1 constitute a self-circulating system for uniformly mixing water and sediment.

[0090] The slurry is connected to the layered filling device through a slurry input pipe 13 and a flexible conveying pipe 14;

[0091] Furthermore, the water source pipeline 11 is installed with a water source pipeline one-way valve F1 to control the on-off and flow of water;

[0092] Furthermore, the water-sand mixing pipe 12 of the circulation channel is also equipped with a water-sand self-circulating pipe check valve F2 for controlling the flow of the water-sand mixture; the self-circulating system is also provided with a mud sampling port 15 equipped with a mud sampling port check valve F3 for collecting mud and detecting the degree of mud mixing uniformity;

[0093] Furthermore, the mud input pipeline 13 is equipped with a mud input centrifugal pump P2 for providing power for inputting mud, and a mud input pipeline one-way valve F4 for regulating the mud input flow rate;

[0094] Furthermore, the mud storage system is also provided with a flow measuring instrument 41 .

[0095] As an embodiment, the bottom of the solid material collection box 19 is funnel-shaped, with an opening at the center thereof and a solid material collection box one-way valve F5 which can control the opening area is installed.

[0096] As an example, the water source pipe 11 is fixed to the top of the storage box 18 by a clamp 16 and is equipped with a water source pipe one-way valve F1 to provide a stable and controllable water supply;

[0097] As an example, the storage box 18 extends from its lower portion through the water-sand mixing pipe 12 and is connected to the water-sand mixing centrifugal pump P1, which is then connected to the top of the storage box 18 to form a circulation channel. A mud sampling port 15 is provided in the water-sand mixing pipe 12 through a tee, and a mud sampling port check valve F3 is installed to collect mud at any time and detect the uniformity of mud mixing.

[0098] As an example, the mud input pipe 13 is led out from the lower part of the storage box 18, and is installed in sequence in the middle of the mud input centrifugal pump P2, the mud input pipe check valve F4, the flow measuring instrument 41, the flexible conveying pipe 14 and the flange 17; the flow measuring instrument 41 is used to display mud flow information in real time; the flexible conveying pipe 14 is used to ensure that the layered filling device is not disconnected from the mud conveying pipe during movement. The flexible conveying pipe 14 is made of a PVC steel wire hose with a built-in spiral steel wire that is easy to move, soft, and highly flexible, and has sufficient length for the movement of the layered filling equipment; the flange 17 is used to connect the flexible conveying pipe 14 to the layered filling device.

[0099] As an embodiment, a storage box ruler R1 is provided on one side of the storage box 18 for marking the liquid level.

[0100] In this embodiment, the self-circulating system replaces the agitator function, which is safer and more uniform. The mud preparation status in the storage can be obtained in real time through the mud sampling port branch.

[0101] Example 2

[0102] A construction environment simulation system for a mobile underwater layered hydraulic filling construction indoor simulation device. In the present invention, the construction environment simulation system is a key device for realizing the mobile hydraulic filling construction simulation.

[0103] In the prior art, Chinese patent application CN104198365A discloses an electric wave environment simulation device, comprising a test chamber, a test bench, a wave pool, a first support platform, a first support base, an electric motor, a second support base, a second support platform, a wave-making board, and a board shaft. The test chamber is provided with the test bench on the left side, the wave pool is provided on the right side, and the first and second support platforms are provided on the upper and lower sides of the wave pool, respectively. The electric motor is used to rotate and swing the wave-making board, rapidly simulating a wave splash environment. The device has a simple structure and limited functionality.

[0104] Chinese patent application CN207056586U discloses a device for simulating and generating a marine climate environment, in which the rotation of the propeller drives the movement of seawater, and can provide special marine climates such as ocean tides and surges, and display the marine climate more realistically and comprehensively. The blowing of the blower can simulate the flow of the atmosphere, and can also simulate the environment of a hurricane, realizing the reproduction of the marine environment in the laboratory and being able to simulate the real marine environment, but it is not suitable for environments that are strongly related to marine operations in layered filling construction.

[0105] It is not possible to match the construction environment simulation system suitable for the mobile underwater layered filling construction indoor simulation device of the present invention, and it is not possible to simulate the wind, wave and current environmental conditions in the open sea.

[0106] In the present invention, the construction environment simulation system simulates the ocean through the water tank 31 to simulate the wind, wave and current environmental conditions in the open sea.

[0107] like Figure 3 As shown, the water tank 31 is used to simulate the construction environment, and a wave maker 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 more than 100 meters long. The upper layer is the test area (with a bottom plate 35), and the lower layer is the water circulation area. The upper and lower layers are isolated. The water circulation area is used to support and protect the test area and ensure the circulation of the flowing water.

[0108] The test area on the upper layer is divided into a transition section, a test section, and a tailwater section. The wave maker 32 is installed at the front end of the transition section to simulate wave conditions along the length of the flume and adjust key wave elements such as wave height and period. The transition section provides uniform and stable water flow conditions for the test section. The test section is the main functional area of ​​the test. The tailwater section is set to avoid backflow of outlet water, which may affect the test. The transition section and tailwater section are connected to the water circulation area on the lower layer.

[0109] As an embodiment, the side wall of the test section is made of organic glass or transparent acrylic board.

[0110] As an embodiment, grids 33 are provided at both ends of the test section to prevent the test sediment from polluting the water circulation area below.

[0111] As an example, a test section ruler R2 is provided on the side wall of the test section along the height direction of the water tank and on the bottom along the length direction of the water tank. That is, there are rulers in two directions, along the height direction of the water tank and along the length direction of the water tank at the bottom.

[0112] The circulating water pump P3 is arranged in the water circulation area of ​​the lower layer of the water tank to form a sustainable and circulatory ocean current that can simulate a flow rate.

[0113] As an embodiment, the circulating water pump 33 serves as a water flow power device and can control the flow rate of the external water flow through the solenoid valve 34.

[0114] Example 3

[0115] The invention discloses a layered filling device used in a mobile underwater layered filling construction indoor simulation device.

[0116] In the present invention, the layered blowing and filling device is the core device for realizing the mobile blowing and filling construction simulation.

[0117] In the prior art, CCCC (Tianjin) Dredging Engineering Co., Ltd. and CCCC Tianjin Waterway Engineering Co., Ltd. disclose a pipeline system for dredging and layered filling (CN209798867U): it belongs to dredging and filling construction equipment and is not used for indoor simulation tests.

[0118] Close to the prior art, Chinese patent application CN107780380A: Indoor simulated blowing and filling construction test device and experimental method. The current traditional indoor blowing and filling test device only conducts simple research after drainage, without considering the natural state of lateral runoff and infiltration of actual water during the blowing and filling process, and in order to ensure the operability of the test, the influence of the model structure size and the test method on the test results is ignored, making it difficult to ensure the actual construction state. However, in this invention application, there is a group of blowing and filling pipes on the upper surface of the mud filling bag, and the blowing and filling pipes are arranged at four corners. The blowing and filling pipes have external threads, and the blowing and filling pipes are connected to the four joints of the diversion device through the slurry pipe. The diversion device is connected to the conveying device through a connecting pipe. The mobility and flexibility of the device are extremely limited.

[0119] like Figure 4 As shown, the layered blowing and filling device of the present invention includes a blowing and filling machine and a three-dimensional power system, and the positioning and movement of the blowing and filling machine in the water tank are controlled by the three-dimensional power system.

[0120] The blowing and filling machine includes a transverse transition section pipe 21, a vertical pipe 22, and a transverse pipe 23;

[0121] The blower filling machine is connected to the mud storage system through the transverse transition section pipeline 21 to obtain mud;

[0122] The blowing and filling machine is connected to the three-dimensional power system through a vertical tube 22;

[0123] The transverse pipe 23 is the terminal end of the blowing and filling machine, is parallel to the width of the water tank, and has a pipe section with multiple outlets; the blowing and filling machine transports mud to the bottom bed of the water tank through the multiple outlets of its transverse pipe 23 to perform a blowing and filling simulation test.

[0124] As an embodiment, the transverse transition section pipeline 21 is connected to the flexible conveying pipeline 14 via a flange 17 .

[0125] like Figure 5 As shown, the three-dimensional power system is designed as a three-dimensional moving module, which are: a longitudinal first moving module 24, a transverse second moving module 25, and a vertical third moving module 26;

[0126] The vertical third movable module 26 carries the blower filling tool terminal to achieve vertical height adjustment in the water tank 31, the transverse second movable module 25 carries the vertical third movable module 26 to achieve transverse width adjustment in the water tank 31, and the longitudinal first movable module 24 carries the transverse second movable module 25 (combined with the third movable module 26 and the blower filling tool terminal) to achieve longitudinal displacement adjustment in the water tank 31.

[0127] The longitudinal first movable module 24 includes a rail rod 241, a sliding block 242 with wheels, and a power module 243. The rail rod is arranged on the upper part of the water tank along the length direction of the water tank. The sliding block with wheels engages with the rail rod. The power module (including a motor drive, a motor, and a power supply, etc., which are conventional technologies) is installed on the sliding block to drive the entire displacement in the length direction of the water tank 31. The transverse second movable module 25 is installed on the sliding block 242 and synchronously displaces along the length direction of the water tank 31 with the longitudinal first movable module 24.

[0128] The design concept refers to the above-mentioned first longitudinal movable module 24:

[0129] The second transverse movable module 25 includes a rail, a sliding block with wheels, and a power module. The rail is arranged on the upper part of the water tank along the width direction of the water tank 31. The sliding block with wheels engages with the rail. The power module (including a motor drive, a motor, and a power supply, etc., which are conventional technologies) is installed on the sliding block to drive the entire displacement in the width direction of the water tank 31. The third vertical movable module 26 is installed on the sliding block in the second transverse movable module 25 and moves synchronously with the second transverse movable module 25 in the width direction of the water tank 31.

[0130] Among them, the vertical third movable module 26 includes a rail rod, a sliding block with wheels, and a power module. The rail rod is arranged on the upper part of the water trough along the vertical direction of the water trough 31, and the sliding block with wheels is engaged with the rail rod. The power module (including motor drive, motor and power supply, etc., which is the existing technology) is installed on the sliding block to drive the overall displacement in the vertical direction of the water trough 31; the blowing and filling equipment is installed on the sliding block in the vertical third movable module 26 and is synchronously displaced with the vertical third movable module 26 in the vertical direction of the water trough.

[0131] Example 4

[0132] Based on Example 1, Example 2, Example 3 and the measurement system, a mobile underwater layered filling construction indoor simulation device of the present invention is constructed, which can fully simulate the underwater mobile filling construction method in open sea areas.

[0133] The mobile underwater layered filling construction indoor simulation device includes a mud storage system, a layered filling device, a construction environment simulation system, and a measurement system.

[0134] The mud storage system includes a storage box 18, a solid aggregate box 19, and a conveying pipeline. The conveying pipeline includes a water source pipeline 11, a water-sand mixing pipeline 12, and a mud input pipeline 13. A water-sand mixing centrifugal pump P1 is installed on the water-sand mixing pipeline 12, and a mud input centrifugal pump P2 is installed on the mud input pipeline 13. The storage box 18 is used to store and mix mud and water. The storage box 18 is provided with a solid aggregate box 19 above it to add mud and sand. The solid aggregate box 19 is used to store mud and sand raw materials. Water is supplied to the box through the water source pipeline 11. A circulation channel is formed through the water-sand mixing pipeline 12 and the water-sand mixing centrifugal pump P1. The storage box, water-sand mixing pipeline 12, and water-sand mixing centrifugal pump P1 constitute a self-circulating system for evenly mixing water and mud. The mud input pipeline 13 is connected to the layered filling device. Furthermore, the mud storage system is also provided with a flow measuring instrument 41. As an embodiment, a storage box ruler R1 is provided on one side of the storage box 18 for marking the liquid level.

[0135] The construction environment simulation system simulates the ocean through a water tank 31, simulating the wind, wave, and current conditions found in open waters. The water tank 31, used to simulate the construction environment, is equipped with a wave generator 32 and a circulating water pump P3. The water tank 31 is an open, circulating water tank, with an upper layer serving as a test area and a lower layer serving as a water circulation area. The two layers are isolated, and the water circulation area supports and safeguards the test area, ensuring the circulation of flowing water. The upper test area is divided into a transition section, a test section, and a tailwater section. The wave generator 32 is installed at the front end of the transition section to simulate wave conditions along the length of the tank. The transition section provides uniform and stable water flow conditions for the test section, which serves as the primary testing area. The transition section and tailwater section are connected to the water circulation area in the lower layer. As an example, grilles 33 are installed at both ends of the test section to prevent sediment from contaminating the water circulation area in the lower layer. The circulating water pump P3 is set in the water circulation area of ​​the lower layer of the water tank to form a sustainable, recyclable ocean current that can simulate the flow rate. As an embodiment, the circulating water pump 33 is a water flow power device that can control the flow rate of the external water through the solenoid valve 34.

[0136] The layered filling device includes a filling machine and a three-dimensional power system, whose positioning and movement within the flume are controlled by the three-dimensional power system. The filling machine includes a transverse transition pipe 21, a vertical tube 22, and a transverse tube 23. The filling machine connects to the mud storage system via the transverse transition pipe 21 to obtain mud. The filling machine connects to the three-dimensional power system via the vertical tube 22. The transverse tube 23 is the terminal end of the filling machine, a pipe section parallel to the flume width and having multiple outlets. The filling machine delivers mud to the flume bed through the multiple outlets of the transverse tube 23 for the filling simulation test.

[0137] The three-dimensional power system is designed as a three-dimensional movable module, namely: a longitudinal first movable module 24, a transverse second movable module 25, and a vertical third movable module 26. The vertical third movable module 26 carries the blower filling equipment to achieve vertical height adjustment in the water tank 31, the transverse second movable module 25 carries the vertical third movable module 26 to achieve transverse width adjustment in the water tank 31, and the longitudinal first movable module 24 carries the transverse second movable module 25 to achieve lengthwise displacement adjustment in the water tank 31.

[0138] The longitudinal first movable module 24 includes a rail, a sliding block with wheels, and a power module. The rail is arranged on the upper part of the water tank along the length of the water tank. The sliding block with wheels engages with the rail. The power module is installed on the sliding block to drive the entire displacement in the length direction of the water tank 31. The transverse second movable module 25 is installed on the sliding block and synchronously displaces along the length direction of the water tank 31 with the longitudinal first movable module 24.

[0139] Based on the same structural design, the second transverse movable module 25 includes a rail, a sliding block with wheels, and a power module. The rail is arranged on the upper part of the water tank along the width direction of the water tank 31. The sliding block with wheels engages with the rail. The power module is installed on the sliding block to drive the entire displacement in the width direction of the water tank 31. The third vertical movable module 26 is installed on the sliding block and synchronously displaces along with the second transverse movable module 25 in the width direction of the water tank 31.

[0140] Among them, the vertical third movable module 26 includes a rail rod, a sliding block with wheels, and a power module. The rail rod is arranged on the upper part of the water trough along the vertical direction of the water trough 31, the sliding block with wheels engages with the rail rod, and the power module is installed on the sliding block to drive the overall displacement in the vertical direction of the water trough 31; the blowing and filling equipment is installed on the sliding block to synchronously displace the vertical third movable module 26 in the vertical direction of the water trough.

[0141] The measurement system includes an on-site measurement device; the on-site measurement device includes a flow measurement instrument 41 , a flow velocity measurement instrument 42 , a first camera 43 , a second camera 44 and a probe 45 .

[0142] The flow measuring instrument 41 is used to display the mud flow information in real time.

[0143] The flow rate measuring instrument 42 is moved by a three-dimensional power system to measure the flow rate at different measuring points.

[0144] The first camera 43 is fixed to one side of the test section of the flume 31 by a camera bracket, facing the side wall of the flume 31 to ensure that the shooting range covers the entire test section (including the flume test section ruler R2 and the front view of the deposited sediment). It is used to take front views of the sediment deposited along the length and height of the flume after the filling test.

[0145] Among them, the second camera 44 is fixed above the filling machine, and the camera is facing the bottom of the water tank 31. It is used to take overhead photos of the deposited sediment along the width and length of the water tank after the filling test. The shooting position and range are kept unchanged during the shooting process, and the pixel size is set to a uniform size. In this way, the front view and overhead view photos of the deposited sediment under each working condition can be processed and analyzed later using image processing software (such as Get Data software). By comparing the scale R2 of the water tank test section of the picture and the ratio of the deposited sediment range and height, the diffusion range of the deposited sediment, the maximum and minimum thickness of the deposited sediment and other filling characteristic parameters can be accurately read.

[0146] The probe 45 is fixed to the test section of the flume 31 through a three-dimensional power system and is used to measure the thickness of sediment at different measuring points after the test.

[0147] Example 5

[0148] Based on Example 1, Example 2, Example 3, and Example 4, the present invention is further provided with a control system installed in the control cabinet 5 ( Figure 1 As shown) and the supporting intelligent measurement system, the present invention constructs an indoor simulation intelligent test system for mobile underwater layered filling construction, which can fully simulate the underwater mobile filling construction method in open sea areas.

[0149] The control system includes an input module, a control module and an execution module ( Figure 6 The measurement system, in combination with on-site measurement equipment and the input module and calculation module of the control system, is used to obtain key test parameters such as the test mud concentration, delivery flow, water depth, height of the blower filling machine from the bottom bed, external water flow velocity, wave height and wave period, and moving speed of the blower filling machine.

[0150] The input module includes three parts: mud mixing parameters, construction environment simulation parameters, and layered filling simulation parameters. Before the test, initial values ​​for each parameter need to be set, which serve as target data during the test. As an example, each parameter is input through the system's human-machine interface.

[0151] The mud mixing parameters include water mass M w0 , sediment mass Ms0;

[0152] The construction environment simulation parameters include the water depth h0, water flow velocity v0, wave height Hw0 Sum wave period T w0 ;

[0153] The layered filling simulation parameters include the input mud concentration C m0 , input mud flow Q0, initial position of layered filling equipment (X0, Y0, Z0), moving direction of layered filling equipment (D x0 , D y0 , D z0 ), moving speed of layered blowing filling equipment (V x0 , V y0 , V z0 ), layered filling equipment moving distance (S x0 , S y0 , S z0 ), the distance between the layered filling machine and the bed bottom H b0 .

[0154] Wherein, the control module is divided into a calculation module and a management module;

[0155] The calculation module includes the calculation of mud mixing parameters and layered filling equipment position parameters, which are used to provide to the management module; wherein the mud mixing parameters refer to the mud parameters of the mixture of water and sediment, and the mud concentration C is used to calculate the mud mixing parameters. m The calculation formula is

[0156] C m =M s / (M s +M w )

[0157] Where C m Indicates mud concentration, Ms indicates sediment mass, M w Indicates water quality.

[0158] The management module includes four parts: mud mixing management module, construction environment simulation module, layered filling simulation module and key parameter measurement module. They are responsible for the management of mud storage system, construction environment simulation and layered filling simulation device respectively, and for analyzing the key test parameters of the measurement system and outputting experimental data charts and scientific research results.

[0159] Specifically, the mud mixing management module manages the concentration and mixing uniformity of water and sediment in the mud storage system, and inputs the initial mud concentration target value C m0 , Ms0 represents the initial sediment mass, M w0 Represents the initial water mass. Mix water and sediment in proportion. Obtain a specific volume V of mud from the mud sampling port and measure the sampled mud mass M. The mud concentration C is m The conversion formula is

[0160]

[0161] Where C m represents the mud concentration, ρ s represents the sediment density, ρ w represents water density, M represents the mass of sampled mud, and V represents the volume of mud.

[0162] If C m with C m0 If the error does not exceed 5%, it is considered that the design goal has been achieved. If the mud concentration needs to be changed to C m ', then it is necessary to add more water and sediment to further mix. The formula for calculating the added sediment mass is:

[0163]

[0164] Where, ΔM s In order to achieve the mud concentration change target C m 'The newly added sediment mass, C m ' represents the changed mud concentration, Ms0 represents the initial sediment mass, M w0 represents the initial water mass, ΔM w Indicates the mass of water added to achieve the target mud concentration change.

[0165] As an example, mud mixing uniformity is managed by taking three samples and comparing the mass deviation of the samples taken at the same time to determine the uniformity. If the mass deviation of the three samples does not exceed 5%, the mixture is considered uniform. If it exceeds 5%, the centrifugal pump is required to continue circulating water and sediment until the sampled mud meets the uniformity requirement. Only then can the mud be supplied to the layered filling device for simulated filling.

[0166] Specifically, the construction environment simulation module manages and adjusts the status of the water tank circulation pump P3, the electromagnetic valve 34, and the working status of the wave maker to meet the setting requirements of the test environment.

[0167] Specifically, the layered filling simulation management module controls and manages the power modules in the three-dimensional power system according to the input mud flow and the layered filling equipment position, moving speed, direction and distance settings.

[0168] Specifically, the stratified filling simulation management module adjusts the flow rate by controlling the opening of the mud input check valve F4. The flow rate measurement instrument 16 installed in the mud input pipeline monitors data to determine whether the set input mud flow rate Q0 has been reached. If the monitored flow rate Q is less than Q0, the opening n of the mud input check valve F4 needs to be increased. If the monitored flow rate Q is greater than Q0, the opening n of the mud input check valve F4 needs to be decreased. The conversion relationship between the two is as follows:

[0169]

[0170] Where Q0 represents the initial input mud flow rate, n0 represents the opening corresponding to the initial input mud flow rate Q0 (n0 varies from 0 to 1, 0 represents no flow, and 1 represents the maximum flow rate); Q represents the mud flow rate monitored during the test, and n represents the solenoid valve opening corresponding to the input mud flow rate Q.

[0171] For the movement control of the layered blowing filling machine, the moving speed (V x , V y , V z ), distance (S x , S y , S z ) and direction (D x , D y , D z ) to control the movement of the layered blowing filling machine at different speeds, distances and directions to reach the target position (X1, Y1, Z1):

[0172]

[0173] Where X1, Y1, and Z1 represent the target positions of the layered filling machine, X0, Y0, and Z0 represent the initial positions of the layered filling machine, and S x0 、S y0 、S z0 They respectively represent the moving distances of the layered blowing filling equipment.

[0174] Specifically, the key parameter measurement and management module manages three key filling characteristic parameters: mud flow rate, flow velocity at water flow measurement points, and different characteristic thicknesses and filling ranges of the filled mud. Mud flow rate is measured in real time using a flow meter 41. Water flow velocity is measured at different measurement points by controlling a flow velocity meter 42 to measure at different water depths. Fill characteristic parameters are measured by controlling the first and second cameras and a probe.

[0175] In this embodiment, the measurement system, combined with on-site measurement equipment and utilizing the input module and calculation module of the control system, is used to obtain key test parameters such as the test mud concentration, delivery flow, water depth, height of the blowing and filling equipment from the bottom bed, external water flow velocity, wave height and wave period, and blowing and filling equipment movement speed.

[0176] The on-site measurement equipment includes a flow measurement instrument 41 , a flow velocity measurement instrument 42 , a first camera 43 , a second camera 44 and a probe 45 .

[0177] The flow measuring instrument 41 is used to display the mud flow information in real time.

[0178] The flow rate measuring instrument 42 is moved by a three-dimensional power system to measure the flow rate at different measuring points.

[0179] The first camera 43 is fixed to one side of the test section of the flume 31 by a camera bracket, facing the side wall of the flume 31 to ensure that the shooting range covers the entire test section (including the flume test section ruler R2 and the front view of the deposited sediment). It is used to take front views of the sediment deposited along the length and height of the flume after the filling test.

[0180] Among them, the second camera 44 is fixed above the filling machine, and the camera is facing the bottom of the water tank 31. It is used to take overhead photos of the deposited sediment along the width and length of the water tank after the filling test. The shooting position and range are kept unchanged during the shooting process, and the pixel size is set to a uniform size. In this way, the front view and overhead view photos of the deposited sediment under each working condition can be processed and analyzed later using image processing software (such as Get Data software). By comparing the scale R2 of the water tank test section of the picture and the ratio of the deposited sediment range and height, the diffusion range of the deposited sediment, the maximum and minimum thickness of the deposited sediment and other filling characteristic parameters can be accurately read.

[0181] The probe 45 is fixed to the test section of the flume 31 through a three-dimensional power system and is used to measure the thickness of sediment at different measuring points after the test.

[0182] Example 6

[0183] Based on the indoor intelligent simulation test system of the mobile underwater layered filling construction in Example 5, it is possible to fully simulate the underwater mobile filling construction method in the open sea area. The simulation test method implemented indoors in this embodiment is further disclosed ( Figure 7 ), the steps include:

[0184] (1) Design key test parameters through input modules: Based on the principles of gravity similarity, geometric similarity, and dynamic similarity, design and determine key test parameters such as test mud concentration, delivery flow, water depth, height of the filling equipment from the bottom bed, external water flow velocity, wave height and wave period, initial position of the filling equipment, and moving speed.

[0185] (2) Set the water depth, velocity, and wave conditions through the input module: Fill the water tank 31 to the test water depth, start the water tank circulation pump P3, set the solenoid valve state according to the test design external flow rate, and adjust the water flow rate in the water tank to the design flow rate. According to the test wave conditions, adjust and set the wave height and wave period parameters of the wave generator to the design wave conditions.

[0186] (3) Mix the mud evenly through the management module: open the one-way valve F5 of the solid aggregate tank and the one-way valve F1 of the water source pipeline, inject the fixed proportion and mass of mud and water into the storage tank according to the test mud concentration, open the one-way valve F2 of the water-sand self-circulation pipeline, and simultaneously start the water-sand mixing centrifugal pump P1. After running for 1 minute, take mud through the mud sampling port to test the degree of mud mixing uniformity. When sampling, open the one-way valve F3 of the mud sampling port and simultaneously close the one-way valve F2 of the water-sand self-circulation pipeline. Take mud through the mud sampling port at regular intervals, measure the mass of the sampled mud three times, and convert it into the average sampled mud concentration of the three times. If the sampled mud concentration is basically consistent with the design concentration, the mud is considered to be mixed evenly. Otherwise, adjust the mud and water to further mix. After the sampling is completed, immediately close the one-way valve F3 of the mud sampling port and simultaneously open the one-way valve F2 of the water-sand self-circulation pipeline. Keep the mud in continuous circulation throughout the test process to ensure that the input mud of the layered filling equipment is always mixed evenly.

[0187] (4) Start the first layer of mobile filling through the management module: open the mud input one-way valve F4 and the mud input centrifugal pump P2, and control the opening of the mud input one-way valve F4 so that the mud flow in the mud input pipeline measured by the flow measuring instrument 41 is the set flow. Set the moving speed, moving direction and moving distance of the three-dimensional power system of the layered filling device, so that the three-dimensional power system on which the filling equipment is installed can be controlled to synchronously control the filling equipment to move along the water tank at the set moving speed until it reaches the set position, simulating the first layer of mobile filling process. During the test, according to the test requirements, control the flow rate measuring instrument 42 to measure the flow rate at a specific measuring point and a specific water depth to measure the flow field changes.

[0188] (5) The first layer of mobile filling is completed through the management module: when the filling machine moves to the end position of the set moving distance, the mud input centrifugal pump P2 is turned off, and the moving speed, moving direction and moving distance of the three-dimensional power system of the layered filling device are reset, so that the layered filling machine can be controlled to move to the initial position as quickly as possible by controlling the three-dimensional power system on which the filling machine is installed without disturbing the deposited mud and sand. During the movement of the layered filling device, a dedicated person is required to assist the wire hose conveying pipeline to move synchronously and ensure that it is not disconnected.

[0189] (6) Repeating steps (4) to (5) through the management module until the target n layers (n ≥ 1) of mobile underwater layered filling construction indoor simulation test is achieved;

[0190] (7) Measure the characteristic parameters of the filling test through the measurement system: After the indoor simulation test of the multi-layer mobile underwater layered filling construction of this working condition is completed, stop the test, and shut down the wave maker 32, the water tank circulation pump P3, the mud input centrifugal pump P2, the water-sand mixing centrifugal pump P1 and all the one-way valves by the management module. After the sediment in the water tank settles into clear water, slowly drain the water in the test water tank, and use the camera 1 and camera 2 in the measurement system to take pictures of the sediment in the test section respectively, so as to measure the filling characteristic parameters such as the filling range, the maximum and minimum filling thickness by image processing software in the future, and use the probe to accurately measure the filling thickness at a specific measuring point; the key test parameters of the measurement system are organized and output by the management system in the form of experimental data charts.

[0191] (8) Clean the silt in the water tank test area. According to the test requirements, key parameters such as the mud concentration, delivery flow rate, height of the filling equipment from the bottom bed, external water flow velocity, wave height, wave period, and moving speed of the filling equipment can be changed. Repeating steps (2) to (7) in the management module can realize a diversified adjustment of the mobile underwater layered filling construction indoor simulation test.

[0192] Example 7

[0193] The length scale of the application case test is 1:10. The test design parameters and prototype parameters are shown in Table 1.

[0194] Table 1 Parameters of this example

[0195]

[0196] (2) Pour water into the water tank 31 to the test water depth, start the circulating water pump P3, set the speed of the solenoid valve 34 according to the external flow rate designed for the test, and adjust the water flow rate in the water tank to the designed flow rate of 0.237 m / s.

[0197] (3) Open the one-way valve F5 of the solid aggregate tank and the one-way valve F1 of the water source pipeline, and inject the fixed proportion and mass of mud and water into the storage tank according to the test mud concentration. Open the one-way valve F2 of the water-sand self-circulation pipeline, and at the same time, start the water-sand mixing centrifugal pump P1. After running for 1 minute, take mud through the mud sampling port 15 to test the degree of mud mixing uniformity. When sampling, open the one-way valve F3 of the mud sampling port and simultaneously close the one-way valve F2 of the water-sand self-circulation pipeline. Take mud through the mud sampling port at regular intervals, measure the mass of the sampled mud three times, and convert it into the average sampled mud concentration of the three times. If the sampled mud concentration is basically consistent with the design concentration of 20%, it is considered that the mud is mixed uniformly. Otherwise, adjust the mud and water to further mix. After the sampling is completed, immediately close the one-way valve F3 of the mud sampling port and simultaneously open the one-way valve F2 of the water-sand self-circulation pipeline. Keep the mud in continuous circulation throughout the test process to ensure that the input mud of the layered filling equipment is always mixed uniformly.

[0198] (4) Open the mud input check valve F4 and the mud input centrifugal pump P2, and control the opening of the mud input check valve F4 so that the mud flow rate of the mud input pipeline measured by the flow measuring instrument 41 is the set flow rate of 0.006m 3 / s. The initial position, movement speed, direction, and distance of the three-dimensional power system were set, allowing the blower filling equipment to be synchronously controlled by the three-dimensional power system to move along the flume at the set speed until it reached the set position, simulating the first layer of mobile blower filling. During the test, according to the test requirements, the flow velocity measuring instrument was controlled to measure the flow velocity at a specific measuring point and water depth to measure flow field changes.

[0199] (5) When the filling machine moves to the end position of the set moving distance, turn off the mud input centrifugal pump P2, and reset the moving speed, moving direction and moving distance of the three-dimensional power system so that the filling machine can be moved to the initial position as quickly as possible by controlling the three-dimensional power system on which the filling machine is installed without disturbing the deposited mud. During the movement of the layered filling device, a dedicated person is required to assist the wire hose conveying pipeline in moving synchronously and ensure that it is not disconnected.

[0200] (6) Repeat steps (4)-(5) until the target 3-layer mobile underwater layered filling construction indoor simulation test is achieved;

[0201] (7) After the indoor simulation test of the multi-layer mobile underwater layered filling construction under this working condition is completed, the test is stopped, the wave maker, the water tank circulation pump P3, the mud input centrifugal pump P2, the water-sand mixing centrifugal pump P1 and all the one-way valves are turned off, and after the sediment in the water tank is settled into clear water, the water in the test water tank is slowly drained, and the sediment deposited in the test section is photographed using the first camera 43 and the second camera 44 respectively, for later use in measuring filling characteristic parameters such as the filling range, the maximum and minimum filling thickness using image processing software, and the filling thickness of a specific measuring point is accurately measured using a probe 45.

[0202] (8) Clean the silt in the water tank test area. According to the test requirements, key parameters such as the mud concentration, delivery flow rate, height of the filling equipment from the bottom bed, external water flow velocity, wave height, wave period, and moving speed of the filling equipment can be changed. By repeating steps (2) to (7), a diversified adjustment of the mobile underwater layered filling construction indoor simulation test can be achieved.

[0203] In summary, the simulation device and test method can be used to simulate the wind, wave and flow construction environment indoors, while ensuring the mobile layered filling with uniform mud mixing, providing a scientific means for in-depth research on precise filling.

[0204] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various changes or modifications within the scope of the claims, which will not affect the essence of the present invention.

Claims

1. A mobile underwater layered filling construction indoor simulation intelligent test system, characterized by: Including control system, measurement system, The control system includes an input module, a control module and an execution module; The input module includes three parts: mud mixing parameters, construction environment simulation parameters and layered filling simulation parameters. Before the test, the initial value of each parameter needs to be set, which is the target data during the test; The control module is divided into a calculation module and a management module; The calculation module includes calculation of mud mixing parameters and layered filling equipment position parameters for providing to the management module; The management module consists of four parts: a mud mixing management module, a construction environment simulation module, a layered filling simulation module, and a key parameter measurement management module. These are responsible for managing the mud storage system, construction environment simulation, and layered filling simulation devices, as well as analyzing key test parameters of the measurement system and organizing and outputting experimental data charts and scientific research results. The execution module is used to simulate an underwater mobile filling construction method in an open sea area, and is designed as a mobile underwater layered filling construction indoor simulation device, including a mud storage system, a layered filling device, and a construction environment simulation system; the mud storage system includes a storage box (18), a solid aggregate box (19), and a conveying pipeline, wherein the conveying pipeline includes a water source pipeline (11), a water-sand mixing pipeline (12), and a mud input pipeline (13); a water-sand mixing centrifugal pump P1 is provided on the water-sand mixing pipeline (12), and a mud input centrifugal pump P2 is provided on the mud input pipeline (13). Pump P2; wherein the storage box (18) is used to store and mix silt and water; the storage box (18) is provided with a solid aggregate box (19) above it to feed silt into it, and the solid aggregate box (19) is used to store silt raw materials; water is supplied to the box through a water source pipe (11); a circulation channel is formed through a water-sand mixing pipe (12) and a water-sand mixing centrifugal pump P1, and the storage box, the water-sand mixing pipe (12), and the water-sand mixing centrifugal pump P1 constitute a self-circulating system for uniformly mixing water and silt; and it is connected to the layered blowing and filling device through a mud input pipe (13); The construction environment simulation system simulates the ocean through a water tank (31) to simulate the wind, wave and current environment conditions in an open sea area; the water tank (31) is used to simulate the construction environment, and is equipped with a wave maker (32) and a circulating water pump P3; the water tank (31) is a circulating open water tank, the upper layer is a test area, and the lower layer is a water body circulation area, and the upper and lower layers are isolated, and the water body circulation area is used to support and protect the test area to ensure the circulation of the flowing water body; the test area in the upper layer is divided into a transition section, a test section and a tail water section, wherein the wave maker (32) is installed at the front end of the transition section to simulate the wave conditions along the length direction of the water tank; The transition section provides uniform and stable water flow conditions for the test section, which is the main functional area of ​​the test. The transition section and tailwater section are connected to the water circulation area in the lower layer. The circulating water pump P3 is set in the water circulation area in the lower layer of the water tank to form a sustainable and recyclable ocean water flow that can simulate the flow rate. The layered blowing and filling device includes a blowing and filling machine and a three-dimensional power system. The positioning and movement of the blowing and filling machine in the water tank are controlled by the three-dimensional power system. The blowing and filling machine includes a transverse transition section pipe (21), a vertical tube (22), and a transverse tube (23). The blowing and filling machine is connected to the mud storage system through the transverse transition section pipe (21) to obtain mud. The blowing and filling machine is connected to the three-dimensional power system through the vertical tube (22). The transverse tube (23) is the terminal of the blowing and filling machine, parallel to the width of the water tank, and has a pipe section with multiple outlets. The blowing and filling machine transports mud to the bottom bed of the water tank through the multiple outlets of its transverse tube (23) to perform a blowing and filling simulation test. The measuring system includes a field measuring device; the field measuring device includes a flow measuring instrument (41), a flow velocity measuring instrument (42), a first camera (43), a second camera (44) and a probe (45); the flow measuring instrument (41) is used to display the flow information of the transported mud in real time; the flow velocity measuring instrument (42) is moved by a three-dimensional power system to measure the flow velocity at different measuring points; the probe (45) is fixed to the test section of the water tank (31) by the three-dimensional power system, and is used to measure the thickness of the sediment at different measuring points after the test is completed; the measuring system is used to obtain key test parameters such as the concentration of the test transported mud, the transport flow, the water depth, the height of the filling equipment from the bottom bed, the external water flow velocity, the wave height and wave period, and the moving speed of the filling equipment.

2. The mobile underwater layered filling construction indoor simulation intelligent test system according to claim 1, characterized in that: in, The mud mixing parameters include water quality M w0 , sediment quality Ms 0; The construction environment simulation parameters include the water depth of the water tank h 0. Water flow rate v 0. Wave height H w0 Sum wave period T w0 ; The layered filling simulation parameters include input mud concentration C m0 , input mud flow Q 0. Initial position of layered filling equipment ( X 0, Y 0, Z 0) Moving direction of layered filling equipment ( D x0 , D y0 , D z0 ), moving speed of layered blowing filling equipment ( V x0 , V y0 , V z0 ), moving distance of layered filling equipment ( S x0 , S y0 , S z0 ), the distance between the layered filling machine and the bed bottom H b0 .

3. The mobile underwater layered filling construction indoor simulation intelligent test system according to claim 2, characterized in that: The mud mixing parameters refer to the parameters of the mud mixed with water and sediment, which are expressed as mud concentration. C m The calculation formula is Where, C m Indicates the mud concentration, Ms Indicates the quality of sediment, M w Indicates water quality.

4. The mobile underwater layered filling construction indoor simulation intelligent test system according to claim 3, characterized in that: The construction environment simulation module manages and adjusts the status of the water tank circulation pump P3, the electromagnetic valve (34), and the working status of the wave maker to meet the setting requirements of the test environment.

5. The mobile underwater layered filling construction indoor simulation intelligent test system according to claim 3, characterized in that: Specifically, the layered filling simulation management module controls and manages the power modules in the three-dimensional power system according to the input mud flow and the layered filling equipment position, moving speed, direction and distance settings.

6. The mobile underwater layered filling construction indoor simulation intelligent test system according to claim 5, characterized in that: Specifically, the layered filling simulation management module adjusts the flow rate by regulating the opening of the mud input one-way valve F4, and determines whether the set input mud flow rate is reached by monitoring data through the flow measurement instrument (41) installed in the mud input pipeline. Q 0; if monitoring flow Q Less than Q 0, then it is necessary to increase the opening of the mud input check valve F4 n If you monitor traffic Q Greater than Q 0, then it is necessary to reduce the opening of the mud input check valve F4 n The conversion relationship between the two is as follows: Where, Q 0 represents the initial input mud flow rate, represents the initial input mud flow Q 0 corresponds to the opening; The range of change is 0~1, 0 means no flow, 1 means maximum flow; Q Indicates the mud flow monitored during the test. Indicates the input mud flow Q Corresponding solenoid valve opening; For the movement control of the layered blowing filling machine, the moving speed of the three-dimensional power system layered blowing filling machine can be obtained in real time through the input module and the calculation module ( V x , V y , V z ),distance( S x , S y , S z ) and direction ( D x , D y , D z ) to regulate the movement of the layered blowing filling machine at different speeds, distances and directions to achieve the target position ( X 1, Y 1, Z 1): Where, X 1. Y 1. Z 1 represents the target position of the layered filling equipment, X 0. Y 0. Z 0 represents the initial position of the layered blowing filling machine, S x0 、 S y0 、 S z0 They respectively represent the moving distances of the layered blowing filling equipment.

7. The mobile underwater layered filling construction indoor simulation intelligent test system according to claim 3, characterized in that: The key parameter measurement management module includes the management of three aspects: mud flow, flow velocity at water flow measurement points, and key filling characteristic parameters of different characteristic thicknesses of filled mud and filling range; for mud flow, the flow rate of input mud is measured in real time by a flow measuring instrument (41); for flow velocity at water flow measurement points, the flow rate is measured at different water depths at different measurement points by controlling a flow velocity measuring instrument (42); and for filling characteristic parameters, the measurement is performed by controlling a first camera, a second camera, and a probe.

8. The mobile underwater layered filling construction indoor simulation intelligent test system according to claim 1, characterized in that: The measurement system, in combination with on-site measurement equipment and utilizing the input module and calculation module of the control system, is used to obtain key test parameters such as test mud concentration, delivery flow, water depth, height of the blower filling equipment from the bottom bed, external water flow velocity, wave height and wave period, and movement speed of the blower filling equipment; The first camera (43) is fixed to one side of the test section of the water flume (31) by a camera bracket, and faces the side wall of the water flume (31), ensuring that the shooting range is the entire test section, including the water flume test section ruler R2 and the front view of the deposited sediment, and is used to take front view photos of the deposited sediment along the length direction of the water flume and along the height direction of the water flume after the filling test; Among them, the second camera (44) is fixed above the filling machine, and the camera is facing the bottom of the water tank (31). It is used to take a top view photo of the sediment deposited along the width and length of the water tank after the filling test. The shooting position and range are kept unchanged during the shooting process, and the pixel size is set to a uniform size. The front view and top view photos of the sediment deposited under each working condition are processed and analyzed using image processing software. By comparing the scale R2 of the water tank test section of the picture and the ratio of the sediment deposited range and height, the diffusion range of the sediment deposited and the maximum and minimum sediment deposited thickness filling characteristic parameters are accurately read.

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