A frozen deep-sea single pile drilling experiment simulation device

Abstract

The present invention provides a frozen deep-sea single pile drilling simulation device, comprising a pile driver, the execution end of which is connected to a pile hammer via a connecting rope. A simulation component is provided on one side of the pile driver, through which the hammer passes. The simulation component comprises a support frame provided on one side of the pile driver and through which the hammer passes, a sealing mechanism provided within the support frame, and an ice layer simulation mechanism provided at the bottom end of the sealing mechanism. The present invention can simulate deep-sea ice conditions, thereby improving the applicability of the single pile drilling simulation device.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of deep-sea operation simulation devices, and in particular to a frozen deep-sea single pile drilling experiment simulation device. Background Art

[0002] In recent years, the rich resources contained in the ocean are being vigorously developed by humans, which has led to the construction and operation of a large number of offshore pile drivers. Various types of research on offshore piling are also an important part.

[0003] According to patent application number CN202021112055.9, a laboratory-use simulated offshore piling device is provided. The device includes a test chamber, a round pile inserted into the chamber, a pile hammer, a guide mechanism, a traction mechanism, and a support frame. The guide mechanism is connected to the support frame, which positions the guide mechanism directly above the round pile. The pile hammer falls from a height along the guide direction of the guide mechanism to impact the round pile. The traction mechanism is connected to the pile hammer and is used to control the pile driving height of the pile hammer. The simulation device allows for simulated piling tests in the laboratory, simulating the effects of different parameter adjustments on noise propagation and vibration characteristics during the piling process.

[0004] The above-mentioned pile driving simulation device can perform simulation tests on pile driving in the laboratory, simulating the impact of different parameter adjustments on noise propagation and vibration characteristics during the pile driving process. However, the above-mentioned pile driving simulation device cannot simulate the deep-sea ice environment, resulting in less than ideal simulation results. Summary of the Invention

[0005] The present invention mainly provides a frozen deep-sea single pile drilling experimental simulation device to solve the technical problems raised in the above background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A frozen deep-sea single pile drilling experimental simulation device includes a pile driver, the execution end of the pile driver is connected to a pile hammer via a connecting rope, and an experimental simulation component for the pile hammer to penetrate is provided on one side of the pile driver;

[0008] The experimental simulation component includes a support frame provided on one side of the pile driver and for the pile hammer to pass through, a sealing mechanism provided inside the support frame, and an ice layer simulation mechanism provided at the bottom end of the sealing mechanism;

[0009] The ice layer simulation mechanism includes two linear modules disposed inside a support frame, a test box disposed between the two linear modules and connected to the execution ends of the linear modules, an ice-making component fixed to one end of the test box, and a data collection component fixed to the other end of the test box.

[0010] The data collection component includes a vibration sensor, a decibel meter, a camera and a pressurized jet head which are fixed on the test box shell and arranged in sequence from top to bottom.

[0011] Furthermore, a symmetrically arranged first winch is fixed on the upper surface of the support frame, and an opening is provided at the bottom end of the first winch and on the support frame shell. A guide hole for the pile hammer to pass through is provided between the two openings. The guide hole is provided at the top of the support frame. The support frame allows the pile hammer to pass through the guide hole and guides the pile hammer to fall, and guides the first wire rope on the first winch to run through the opening.

[0012] Furthermore, the sealing mechanism includes a sealing cover abutting the upper surface of the test box, and a connecting head fixed to the upper surface of the sealing cover and symmetrically arranged, a first steel wire rope is fixed to the top of the connecting head, the first steel wire rope passes through the opening and is connected to the first winch, and the test box is sealed by the sealing cover so that a deep-sea environment is formed inside the test box.

[0013] Furthermore, a plurality of electromagnets are fixed on the upper surface of the test box, and the test box is connected to the lower surface of the sealing cover through the electromagnets. The test box adsorbs the sealing cover through the energized electromagnets to improve the fixing effect of the sealing cover on the test box.

[0014] Furthermore, the ice-making component includes an evaporator that passes through the end of the test box away from the vibration sensor, and an ice storage frame fixed to the side surface of the evaporator extending to the interior of the test box. Water is continuously injected into the interior of the ice storage frame through a nozzle in the test box. The evaporator absorbs the heat of the water inside the ice storage frame, causing ice to form inside the ice storage frame.

[0015] Furthermore, one end of the evaporator extending to the outside is connected to a hot gas valve, and the high-temperature and high-pressure refrigerant vapor discharged from the compressor directly enters the evaporator through the hot gas valve to heat the evaporator by the hot gas. When the evaporator is heated to a certain degree, the ice cubes in the ice storage frame fall out.

[0016] Furthermore, a machine box is fixed on one side of the test box, and a second winch is fixed on the surface of the machine box and the test box on the side away from each other. The execution end of the second winch is connected to a second steel wire rope, and the second steel wire rope passes through the test box and extends to the interior of the test box where a lifting plate is connected. As ice cubes fall on the lifting plate, the perforated lifting plate is driven to rise, so as to facilitate the removal and replacement of ice cubes.

[0017] Furthermore, a compressor is fixed inside the chassis, the input end of the compressor and the output end of the evaporator are connected by a pipe, the output end of the compressor is connected to the input end of the hot air valve, and a condenser is also provided inside the chassis, which is located on one side of the compressor and connected to the output end of the evaporator, and the output end of the condenser and the input end of the evaporator are connected by a pipe.

[0018] Furthermore, a cylinder is provided on the top of the chassis, and a U-shaped stretching seat for the second steel wire rope to pass through is fixed on the upper surface of the piston rod of the cylinder. The lifting plate is pulled by the second steel wire rope until the lifting plate tilts, so that the ice on the lifting plate can slide down with the help of the slope.

[0019] Furthermore, sealing rings for the second steel wire rope to pass through are embedded at both ends of the test box, and multiple balls are embedded inside the sealing rings. The sealing rings reduce the gap between the second steel wire rope and the test box to prevent high-pressure air leakage inside the test box.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] Firstly, the present invention can simulate the ice environment of the deep sea to improve the applicability of the single pile opening simulation device, specifically: water is continuously injected into the interior of the ice storage frame through the nozzle in the test box, and the evaporator absorbs the heat of the water inside the ice storage frame, causing ice to form inside the ice storage frame, and then the evaporator is heated. When the evaporator is heated to a certain degree, the ice cubes in the ice storage frame fall onto the lifting plate, completing the preparation for simulating the ice layer, and high-pressure air is injected into the interior of the test box through a pressurized jet nozzle connected to the air compressor, so as to simulate the high-pressure environment of the deep sea inside the test box.

[0022] Secondly, after the pile driver completes a hole drilling, it drives the test box to move horizontally through the linear module so that the pile hammer can be aimed at other positions of the ice block and continue drilling, thereby conducting a rapid experimental simulation.

[0023] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is an axonometric drawing of the present invention;

[0026] Figure 3 A top view of the present invention;

[0027] Figure 4 for Figure 3 Sectional view along line AA;

[0028] Figure 5 It is a structural diagram of the experimental simulation component of the present invention;

[0029] Figure 6 It is a front view of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the test box and the chassis of the present invention;

[0031] Figure 8 for Figure 5 A magnified view of the structure of area A in the middle.

[0032] In the figure: 10, pile driver; 20, pile hammer; 30, experimental simulation component; 31, support frame; 32, sealing mechanism; 321, sealing cover; 322, connector; 323, first steel wire rope; 33, ice layer simulation mechanism; 331, linear module; 332, test chamber; 3321, electromagnet; 3322, sealing ring; 3323, ball bearing; 333, ice making component; 3331, evaporator; 3332, ice storage frame; 334, data collection component; 3341, vibration sensor; 3342, decibel meter; 3343, camera; 3344, pressurized jet head; 335, second winch; 336, second steel wire rope; 337, lifting plate; 338, chassis; 3381, compressor; 3382, condenser; 3383, cylinder; 3384, U-shaped stretching seat. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0034] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which the present invention pertains. The terminology used herein in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] For example, please refer to the attached Figure 1-8 A frozen deep-sea single pile drilling experimental simulation device includes a pile driver 10, the execution end of the pile driver 10 is connected to a pile hammer 20 via a connecting rope, and an experimental simulation component 30 is provided on one side of the pile driver 10 for the pile hammer 20 to penetrate;

[0037] The experimental simulation assembly 30 includes a support frame 31 provided on one side of the pile driver 10 and for the pile hammer 20 to pass through, a sealing mechanism 32 provided inside the support frame 31, and an ice layer simulation mechanism 33 provided at the bottom end of the sealing mechanism 32;

[0038] The ice layer simulation mechanism 33 includes two linear modules 331 disposed inside the support frame 31, a test box 332 disposed between the two linear modules 331 and connected to the execution ends of the linear modules 331, an ice making component 333 fixed to one end of the test box 332, and a data collection component 334 fixed to the other end of the test box 332.

[0039] The data collection component 334 includes a vibration sensor 3341, a decibel meter 3342, a camera 3343 and a pressurized jet head 3344 fixed on the shell of the test box 332 and arranged in order from top to bottom;

[0040] It should be noted that, in this embodiment, the pile driver 10 drives the pile hammer 20 to fall, so that the pile hammer 20 passes through the sealing cover 321 to open a hole in the ice layer inside the test box 332. During this process, the decibel meter 3342 collects volume data during the hole opening, the vibration sensor 3341 with model number LIS331DLTR collects vibration data during the hole opening, and the camera 3343 records audio and video data during the hole opening.

[0041] For details, please refer to the attached Figure 4 and 5 The top surface of the support frame 31 is fixed with a symmetrically arranged first hoist 311, an opening 312 is provided at the bottom end of the first hoist 311 and opened on the shell of the support frame 31, a guide hole 313 is provided between the two openings 312 for the pile hammer 20 to be inserted, and the guide hole 313 is provided at the top end of the support frame 31, the sealing mechanism 32 includes a sealing cover 321 abutting against the upper surface of the test box 332, and a connecting head 322 fixed to the upper surface of the sealing cover 321 and symmetrically arranged, a first steel wire rope 323 is fixed to the top end of the connecting head 322, the first steel wire rope 323 passes through the opening 312 and is connected to the first hoist 311, a plurality of electromagnets 3321 are fixed on the upper surface of the test box 332, and the test box 332 is connected to the lower surface of the sealing cover 321 through the electromagnets 3321;

[0042] It should be noted that, in this embodiment, the support frame 31 allows the pile hammer 20 to pass through the guide hole 313 and guides the pile hammer 20 to fall, and guides the first wire rope 323 on the first hoist 311 to run through the opening;

[0043] Furthermore, the first winch 311 is used to reel in and unreel the first steel wire rope 323, so that the first steel wire rope 323 drives the connector 322 on the sealing cover 321 to rise and fall, thereby driving the sealing cover 321 to rise and fall. When the sealing cover 321 is separated from the test box 332, the ice cubes with holes in the test box 332 can be removed by means of the lifting plate 337. When the sealing cover 321 abuts against the test box 332, the test box 332 can be sealed by the sealing cover 321, so that the interior of the test box 332 forms a deep-sea environment.

[0044] Furthermore, the test box 332 absorbs the sealing cover 321 through the energized electromagnet 3321 to improve the fixing effect of the sealing cover 321 on the test box 332 .

[0045] For details, please refer to the attached Figure 4 、 5 and 7, the ice-making component 333 includes an evaporator 3331 disposed at one end of the test box 332 away from the vibration sensor 3341, an ice storage frame 3332 fixed to a side surface of the evaporator 3331 extending into the interior of the test box 332, and a hot air valve 3333 connected to one end of the evaporator 3331 extending to the outside;

[0046] It should be noted that, in this embodiment, water is continuously injected into the ice storage frame 3332 through the nozzle in the test box 332, and the evaporator 3331 absorbs the heat of the water in the ice storage frame 3332, so that ice is formed inside the ice storage frame 3332;

[0047] Furthermore, after ice forms inside the ice storage frame 3332, the hot air valve 3333 is energized. Since the hot air valve 3333 is located on the pipe between the compressor 3381 and the evaporator 3331, the high-temperature and high-pressure refrigerant vapor discharged from the compressor 3381 enters the evaporator 3331 directly through the hot air valve 3333, so that the evaporator 3331 is heated by the hot air. When the evaporator 3331 is heated to a certain degree, the ice cubes in the ice storage frame 3332 fall out.

[0048] For details, please refer to the attached Figure 4 、 5and 7, a cabinet 338 is fixed to one side of the test box 332, and a second hoist 335 is fixed to the surface of the cabinet 338 and the test box 332 away from each other. The execution end of the second hoist 335 is connected to a second steel wire rope 336, and the second steel wire rope 336 passes through the test box 332 and extends to the interior of the test box 332 and is connected to a lifting plate 337. A compressor 3381 is fixed to the interior of the cabinet 338, and the input end of the compressor 3381 is connected to the output end of the evaporator 3331 through a pipeline, and the output end of the compressor 3381 is connected to the input end of the hot gas valve 3333 The interior of the chassis 338 is further provided with a condenser 3382 located on one side of the compressor 3381 and connected to the output end of the evaporator 3331. The output end of the condenser 3382 is connected to the input end of the evaporator 3331 via a pipe. A cylinder 3383 is penetrated through the top of the chassis 338. A U-shaped stretching seat 3384 for the second steel wire rope 336 to pass through is fixed to the upper surface of the piston rod of the cylinder 3383. Sealing rings 3322 for the second steel wire rope 336 to pass through are embedded at both ends of the test box 332. A plurality of balls 3323 are embedded in the interior of the sealing ring 3322.

[0049] It should be noted that, in this embodiment, the second winch 335 reels in and releases the second steel wire rope 336, so that the second steel wire rope 336 drives the lifting plate 337 to move up and down. As ice cubes fall onto the lifting plate 337, the perforated lifting plate 337 is driven to rise, thereby facilitating the removal and replacement of ice cubes.

[0050] Furthermore, the high-temperature, high-pressure refrigerant is evaporated by the compressor 3381 and discharged into the condenser 3382 connected thereto, where it is condensed into liquid by the condenser 3382. The liquid is then intercepted by the expansion valve connected to the condenser 3382 and converted into a low-temperature, low-pressure gas-liquid mixture. The gas-liquid mixture enters the evaporator 3331 through the pipe between the expansion valve and the evaporator 3331. The heat of the water in the gas-liquid mixture is absorbed by the evaporator 3331 and converted into a low-temperature, low-pressure gas. The gas is then sucked into the compressor 3381, completing one ice-making cycle.

[0051] Furthermore, the cylinder 3383 drives the U-shaped stretching seat 3384 to rise, so that the U-shaped stretching seat 3384 pushes the second steel wire rope 336, thereby pulling the lifting plate 337 through the second steel wire rope 336 until the lifting plate 337 tilts, so that the ice on the lifting plate 337 slides down with the help of the slope.

[0052] Furthermore, the sealing ring 3322 reduces the gap between the second steel wire rope 336 and the test box 332 to prevent leakage of high-pressure air inside the test box 332 . The sealing ring 3322 prevents dry friction between it and the second steel wire rope 336 through the ball 3323 .

[0053] The specific operation mode of the present invention is as follows:

[0054] When using the simulation experimental device, water is continuously injected into the ice storage frame 3332 through the nozzle in the test box 332. The evaporator 3331 absorbs the heat of the water in the ice storage frame 3332, causing ice to form inside the ice storage frame 3332. After the ice is frozen inside the ice storage frame 3332, the hot gas valve 3333 is energized. Since the hot gas valve 3333 is located on the pipeline between the compressor 3381 and the evaporator 3331, the high-temperature and high-pressure refrigerant vapor discharged from the compressor 3381 directly enters the evaporator 3331 through the hot gas valve 3333, so that the evaporator 3331 is heated by the hot gas. When the evaporator 3331 is heated to a certain degree, the ice cubes in the ice storage frame 3332 fall onto the lifting plate 337, completing the preparation of the simulated ice layer.

[0055] The first winch 311 reels in and releases the first steel wire rope 323, causing the first steel wire rope 323 to raise and lower the connector 322 on the sealing cover 321, thereby raising and lowering the sealing cover 321. When the sealing cover 321 abuts against the test box 332, the test box 332 is sealed by the sealing cover 321. High-pressure air is then injected into the test box 332 through a pressurized jet nozzle 3344 connected to an air compressor, thereby simulating the high-pressure environment of the deep sea inside the test box 332.

[0056] The pile driver 10 drives the pile hammer 20 downward, so that the pile hammer 20 passes through the sealing cover 321 to open a hole in the ice layer inside the test box 332. During this process, the decibel meter 3342 collects volume data during the hole opening, the vibration sensor 3341 (model LIS331DLTR) collects vibration data during the hole opening, and the camera 3343 records audio and video data during the hole opening.

[0057] After the drilling of the ice block is completed, the linear module 331 drives the test box 332 to translate, so that the pile hammer 20 can be aligned with other positions of the ice block and continue drilling, thereby performing a rapid experimental simulation.

[0058] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A frozen deep-sea single pile drilling experiment simulation device, comprising a pile driver (10), characterized in that: The execution end of the pile driver (10) is connected to the pile hammer (20) via a connecting rope, and an experimental simulation component (30) for the pile hammer (20) to penetrate is provided on one side of the pile driver (10); The experimental simulation component (30) includes a support frame (31) provided on one side of the pile driver (10) and for the pile hammer (20) to pass through, a sealing mechanism (32) provided inside the support frame (31), and an ice layer simulation mechanism (33) provided at the bottom end of the sealing mechanism (32); The ice layer simulation mechanism (33) includes two linear modules (331) arranged inside the support frame (31), a test box (332) arranged between the two linear modules (331) and connected to the execution ends of the linear modules (331), an ice making component (333) fixed to one end inside the test box (332), and a data collection component (334) fixed to the other end inside the test box (332); The data collection component (334) includes a vibration sensor (3341), a decibel meter (3342), a camera (3343) and a pressurized jet head (3344) fixed on the shell of the test box (332) and arranged in sequence from top to bottom; The ice-making component (333) includes an evaporator (3331) passing through an end of the test box (332) away from the vibration sensor (3341), and an ice storage frame (3332) fixed to a side surface of the evaporator (3331) extending into the interior of the test box (332); One end of the evaporator (3331) extending to the outside is connected to a hot air valve (3333); A machine box (338) is fixed on one side of the test box (332), and a second hoist (335) is fixed on a surface of the machine box (338) and a side away from the test box (332). The execution end of the second hoist (335) is connected to a second steel wire rope (336), and the second steel wire rope (336) passes through the test box (332) and extends to the interior of the test box (332) and is connected to a lifting plate (337). A symmetrically arranged first hoist (311) is fixed on the upper surface of the support frame (31), an opening (312) is provided at the bottom end of the first hoist (311) and is opened on the shell of the support frame (31), a guide hole (313) for the pile hammer (20) to pass through is provided between the two openings (312), and the guide hole (313) is provided at the top end of the support frame (31); The sealing mechanism (32) includes a sealing cover (321) abutting against the upper surface of the test box (332), and a connector (322) fixed to the upper surface of the sealing cover (321) and symmetrically arranged, a first steel wire rope (323) being fixed to the top end of the connector (322), and the first steel wire rope (323) passing through the opening (312) and connected to the first hoist (311); A plurality of electromagnets (3321) are fixed to the upper surface of the test box (332), and the test box (332) is connected to the lower surface of the sealing cover (321) via the electromagnets (3321).

2. A frozen deep-sea single pile drilling test simulation device according to claim 1, characterized in that: A compressor (3381) is fixed inside the chassis (338), and the input end of the compressor (3381) is connected to the output end of the evaporator (3331) through a pipeline. The output end of the compressor (3381) is connected to the input end of the hot air valve (3333). A condenser (3382) is also provided inside the chassis (338), which is located on one side of the compressor (3381) and connected to the output end of the evaporator (3331). The output end of the condenser (3382) is connected to the input end of the evaporator (3331) through a pipeline.

3. The frozen deep-sea single pile drilling experiment simulation device according to claim 2, characterized in that: A cylinder (3383) is provided on the top of the chassis (338), and a U-shaped stretching seat (3384) for the second steel wire rope (336) to pass through is fixed on the upper surface of the piston rod of the cylinder (3383).

4. The frozen deep-sea single pile drilling experiment simulation device according to claim 3 is characterized in that: Both ends of the test box (332) are embedded with sealing rings (3322) for the second steel wire rope (336) to pass through, and a plurality of balls (3323) are embedded inside the sealing rings (3322).

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