In-situ measurement sampling device

Abstract

The present application relates to an in-situ measurement sampling device, which belongs to the technical field of marine engineering measurement equipment, and includes: a measurement frame, which includes a base and a central column vertically connected to the top of the base, a slide is sleeved on the central column, and the slide slides up and down along the axis direction of the central column; an acoustic measurement unit, which includes an acoustic transmitting assembly and an acoustic receiving probe fixedly connected to the slide, and the acoustic receiving probe extends vertically downward; a mechanical measurement unit, which includes a mechanical penetration measurement mechanism and a mechanical shear measurement mechanism fixedly connected to the base. This in-situ measurement sampling device can perform in-situ measurement of acoustic characteristics and in-situ measurement of mechanical characteristics at the same measurement point in a single operation, and the measurement data has good correlation. Sediment samples are obtained simultaneously during in-situ measurement, and the obtained samples can be compared with in-situ measurement data through laboratory analysis to improve data reliability.

Description

Technical Field

[0001] The present application relates to the technical field of marine engineering measurement equipment, and in particular to an in-situ measurement sampling device. Background Art

[0002] Seabed sediments are the interface between the ocean water and the seabed, and are also the first object that humans face when understanding, exploring, and developing and utilizing the seabed. The material properties of seabed sediments are an important aspect of seabed environmental monitoring, seabed resource development, and marine engineering. In-situ acoustic and mechanical measurements of seabed sediments are an important means of understanding sediment properties, which maximizes the preservation of the original characteristics of sediments and has high measurement accuracy.

[0003] There are two modes for in-situ measurement of sediment acoustics: one is to install the acoustic transducers opposite to each other to measure the acoustic characteristics of sediments in the horizontal direction; the other is to install the acoustic transducers longitudinally to measure the acoustic characteristics of sediments in the vertical direction. There are also two modes for in-situ measurement of sediment mechanics: one is to measure the penetration resistance through the penetration resistance probe; the other is to measure the shear force through the cross shear plate probe.

[0004] The existing technology has the following shortcomings: ① Different measuring equipment is needed to measure the acoustic and mechanical properties of sediments, and the operating efficiency and equipment utilization rate are low; ② It is impossible to obtain the acoustic and mechanical data of the same measuring point at the same time, and the data correlation is poor; ③ It is impossible to perform synchronous sediment sampling, which is not conducive to the parameter correlation analysis of sediments, and it is impossible to conduct laboratory verification of in-situ measurement data. Summary of the invention

[0005] The embodiment of the present application provides an in-situ measurement sampling device to solve the problems in the related art that different measurement equipment is needed to measure the acoustic and mechanical properties of sediments, the operation efficiency and equipment utilization rate are low; the acoustic and mechanical data of the same measurement point cannot be obtained at the same time, and the data correlation is poor; synchronous sediment sampling cannot be performed, which is not conducive to carrying out parameter correlation analysis research of sediments, and the in-situ measurement data cannot be reviewed in the laboratory.

[0006] The present application embodiment provides an in-situ measurement sampling device, comprising:

[0007] The measuring frame comprises a base and a center column vertically connected to the top of the base, a slide is sleeved on the center column, and the slide slides up and down along the axis direction of the center column;

[0008] An acoustic measurement unit, comprising an acoustic transmitting assembly and an acoustic receiving probe rod fixedly connected to the carriage, wherein the acoustic receiving probe rod extends vertically downward;

[0009] The mechanical measuring unit comprises a mechanical penetration measuring mechanism and a mechanical shear measuring mechanism fixedly connected to the base.

[0010] In some embodiments: the acoustic emission assembly includes a shear wave emission probe rod, the shear wave emission probe rod extends vertically downward, and a plurality of shear wave emission transducers are arranged on the shear wave emission probe rod along the axis direction of the shear wave emission probe rod;

[0011] A plurality of hydrophones are arranged on the acoustic receiving probe rod along the axial direction of the acoustic receiving probe rod at the same height as and corresponding to the plurality of shear wave transmitting transducers on the shear wave transmitting probe rod, and the hydrophones receive the sound waves transmitted by the shear wave transmitting transducers.

[0012] In some embodiments: the slide is a rectangular structure, and the shear wave transmitting probe rod and the acoustic receiving probe rod are diagonally arranged on the slide.

[0013] In some embodiments: the acoustic transmitting assembly further includes a longitudinal wave transmitting transducer group, the longitudinal wave transmitting transducer group is fixedly connected to the bottom of the slide and close to the acoustic receiving probe rod, and the acoustic receiving probe rod receives the sound waves emitted by the longitudinal wave transmitting transducer group.

[0014] In some embodiments: the slide is a rectangular structure, and two columnar samplers are also provided on the slide. The two columnar samplers are diagonally arranged on the slide and are at different diagonals from those of the acoustic receiving probe and the shear wave transmitting probe.

[0015] In some embodiments: the carriage is provided with a counterweight block capable of adjusting the penetration depth of the acoustic receiving probe and the cylindrical sampler;

[0016] A displacement sensor is provided between the center column and the slide, and the displacement sensor is used to measure the penetration depth of the acoustic receiving probe rod, the shear wave transmitting probe rod and the columnar sampler.

[0017] In some embodiments: two groups of single-tube samplers are also provided on the base, and the two groups of single-tube samplers are respectively close to the mechanical penetration measurement mechanism and the mechanical shear measurement mechanism.

[0018] In some embodiments: a sound velocity meter for measuring the sound velocity of seawater is also provided on the top of the slide.

[0019] In some embodiments: an underwater communication control compartment and an underwater measurement control compartment are also provided on the base, the underwater communication control compartment is used to communicate with the deck control end, and the underwater measurement control compartment is used to control the acoustic measurement unit and the mechanical measurement unit.

[0020] In some embodiments: a video component is also provided on the base, and the video component includes an underwater camera, an underwater lighting and an altimeter.

[0021] The beneficial effects of the technical solution provided by this application include:

[0022] An embodiment of the present application provides an in-situ measurement sampling device. Since the in-situ measurement sampling device of the present application is provided with a measurement frame, it includes a base and a center column vertically connected to the top of the base, a slide is sleeved on the center column, and the slide slides up and down along the axial direction of the center column; an acoustic measurement unit, which includes an acoustic transmitting assembly and an acoustic receiving probe rod fixedly connected to the slide, and the acoustic receiving probe rod extends vertically downward; a mechanical measurement unit, which includes a mechanical penetration measurement mechanism and a mechanical shear measurement mechanism fixedly connected to the base.

[0023] Therefore, the in-situ measurement sampling device of the present application integrates an acoustic emission component, an acoustic receiving probe, a penetration measurement mechanism, and a mechanical shear measurement mechanism. The acoustic emission component, the acoustic receiving probe, the penetration measurement mechanism, and the mechanical shear measurement mechanism can perform in-situ measurements of acoustic characteristics and in-situ measurements of mechanical characteristics of seabed sediments at the same measurement point in a single operation, with high equipment utilization and improved measurement efficiency. The in-situ measurement sampling device can perform in-situ measurements of acoustic characteristics and in-situ measurements of mechanical characteristics at the same measurement point in a single operation, with good correlation of measurement data, and sediment samples are obtained simultaneously during in-situ measurement. The obtained samples can be compared with in-situ measurement data through laboratory analysis to improve data reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A structural stereogram of an embodiment of the present application;

[0026] Figure 2 It is a top view of the structure of an embodiment of the present application.

[0027] Reference numerals:

[0028] 1. Base; 2. Middle column; 3. Slide; 4. Support frame; 5. Acoustic receiving probe; 6. Shear wave transmitting probe; 7. Longitudinal wave transmitting transducer group; 8. Mechanical penetration measurement mechanism; 9. Mechanical shear measurement mechanism; 10. Columnar sampler; 11. Single tube sampler; 12. Underwater communication control cabin; 13. Underwater measurement control cabin; 14. Counterweight; 15. Sonic velocity meter; 16. Underwater camera; 17. Altimeter; 18. Underwater lighting; 19. Shear wave transmitting transducer; 20. Hydrophone. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] The embodiment of the present application provides an in-situ measurement sampling device, which can solve the problems in the related art that different measurement equipment is needed to measure the acoustic and mechanical properties of sediments, the operation efficiency and equipment utilization rate are low; the acoustic and mechanical data of the same measurement point cannot be obtained at the same time, and the data correlation is poor; synchronous sediment sampling cannot be performed, which is not conducive to carrying out parameter correlation analysis research of sediments, and the in-situ measurement data cannot be reviewed in the laboratory.

[0031] See also Figure 1 and Figure 2 As shown, the embodiment of the present application provides an in-situ measurement sampling device, comprising:

[0032] The measuring frame includes a base 1 and a center column 2 vertically connected to the top of the base 1. The base 1 is preferably a rectangular plate structure, the center column 2 is preferably a rectangular tubular structure, and the bottom of the center column 2 is fixedly connected to the middle of the base 1.

[0033] A slide 3 is sleeved on the center column 2 . The slide 3 is preferably a rectangular plate structure, and the slide 3 has two layers, the upper layer and the lower layer. The slide 3 can slide freely up and down along the axis direction of the center column 2 .

[0034] The acoustic measurement unit includes an acoustic transmitting assembly and an acoustic receiving probe rod 5 fixedly connected to the slide 3. The top end of the acoustic receiving probe rod 5 is fixedly connected to the two-layer slide 3 and extends vertically downward.

[0035] The acoustic receiving probe 5 follows the slide 3 to move vertically up and down along the axis of the central column 2. When it is necessary to perform in-situ measurement of the acoustic characteristics of the seabed sediments, the slide 3 drives the acoustic receiving probe 5 to move vertically into the seabed sediments, and the acoustic receiving probe 5 receives the sound waves emitted by the acoustic transmitting assembly.

[0036] The mechanical measurement unit comprises a mechanical penetration measurement mechanism 8 and a mechanical shear measurement mechanism 9 fixedly connected to the base 1. The mechanical penetration measurement mechanism 8 is used to measure the mechanical penetration resistance characteristics of the seabed sediments, and the mechanical shear measurement mechanism 9 is used to measure the mechanical shear force characteristics of the seabed sediments.

[0037] The in-situ measurement sampling device of the embodiment of the present application integrates an acoustic emission component, an acoustic receiving probe 5, a mechanical penetration measurement mechanism 8, and a mechanical shear measurement mechanism 9. The acoustic emission component, the acoustic receiving probe 5, the mechanical penetration measurement mechanism 8, and the mechanical shear measurement mechanism 9 can perform in-situ measurement of acoustic characteristics and in-situ measurement of mechanical characteristics of seabed sediments at the same measurement point in a single operation, with high equipment utilization and improved measurement efficiency.

[0038] In addition, this in-situ measurement sampling device can perform in-situ measurement of acoustic properties and in-situ measurement of mechanical properties at the same measurement point in a single operation, and the measurement data have good correlation.

[0039] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides an in-situ measurement sampling device, the acoustic emission component of which includes a shear wave emission probe rod 6, the top end of which is fixedly connected to the two-layer slide 3 and extends vertically downward.

[0040] A plurality of shear wave transmitting transducers 19 are provided at intervals on the shear wave transmitting probe rod 6 along the axial direction of the shear wave transmitting probe rod 6. The length of the shear wave transmitting probe rod 6 and the number of shear wave transmitting transducers 19 are set according to the specific operating conditions and technical requirements of the equipment.

[0041] A plurality of hydrophones 20 are provided on the acoustic receiving probe 5 along the axial direction of the acoustic receiving probe 5 at the same height as and corresponding to the plurality of shear wave transmitting transducers 19 on the shear wave transmitting probe 6 . The hydrophones 20 receive the sound waves emitted by the shear wave transmitting transducers 19 .

[0042] The multiple shear wave transmitting transducers 19 on the shear wave transmitting probe rod 6 are used to transmit acoustic wave signals to the acoustic receiving probe rod 5 in the horizontal direction, and the multiple hydrophones 20 on the acoustic receiving probe rod 5 are used to receive the acoustic wave signals transmitted by the multiple shear wave transmitting transducers 19 in the horizontal direction respectively, so as to measure the lateral acoustic characteristics of the seabed sediments in situ.

[0043] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides an in-situ measurement sampling device, the acoustic emission component of which also includes a longitudinal wave emission transducer group 7, which is fixedly connected to the bottom of the slide 3 and close to the acoustic receiving probe 5, and the acoustic receiving probe 5 receives the sound waves emitted by the longitudinal wave emission transducer group 7.

[0044] The longitudinal wave transmitting transducer group 7 is used to transmit sound wave signals to the acoustic receiving probe 5 in the vertical direction, and the multiple hydrophones 20 on the acoustic receiving probe 5 are used to receive the sound wave signals transmitted by the longitudinal wave transmitting transducer group 7 in the vertical direction respectively, so as to measure the longitudinal acoustic characteristics of the seabed sediments in situ.

[0045] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides an in-situ measurement sampling device, and two columnar samplers 10 are also provided on the slide 3 of the in-situ measurement sampling device. The top ends of the two columnar samplers 10 are fixedly connected to the two-layer slide 3 and extend vertically downward.

[0046] The two columnar samplers 10 are both hollow tube structures. The two columnar samplers 10 are diagonally arranged on the slide 3 and are located at a different diagonal from the acoustic receiving probe 5 and the shear wave transmitting probe 6 .

[0047] The two columnar samplers 10 follow the slide 3 to move vertically up and down along the axis of the middle column 2. When it is necessary to penetrate and sample the seabed sediments, the slide 3 drives the two columnar samplers 10 to move vertically and penetrate into the seabed sediments to complete the sampling.

[0048] The sediment column sample obtained by the column sampler 10 can be analyzed for acoustic characteristics in the laboratory and compared with the acoustic in-situ measurement data to improve data reliability.

[0049] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides an in-situ measurement sampling device, the top of the slide 3 of which is provided with an adjustable acoustic receiving probe 5, a shear wave transmitting probe 6 and a counterweight 14 for the penetration depth of two columnar samplers 10.

[0050] There are multiple counterweight blocks 14, which are stacked and fixed on the top of the slide 3. The specific weight and number of the counterweight blocks 14 are flexibly adjusted according to the characteristics of the seabed sediments in the target area, so that the acoustic receiving probe 5, the shear wave transmitting probe 6 and the two columnar samplers 10 can penetrate to the set depth of the seabed sediments.

[0051] A displacement sensor (not shown) is provided between the center column 2 and the slide 3, and is used to measure the relative position of the slide 3 and the center column 2, that is, the depth of penetration of the acoustic receiving probe 5, the shear wave transmitting probe 6 and the two columnar samplers 10 into the seabed sediments.

[0052] In some alternative embodiments: See Figure 1 and Figure 2As shown, an embodiment of the present application provides an in-situ measurement sampling device, the measurement frame of which also includes a support frame 4, which is a rectangular frame structure composed of steel pipes and connecting parts, and the bottom of the support frame 4 is fixedly connected to the base 1.

[0053] The bottom of the support frame 4 provides positioning support for the base 1 to prevent the base 1 and the center column 2 from tipping over. The top of the support frame 4 is fixedly connected to the top of the center column 2 to provide lateral positioning support for the center column 2 to prevent the center column 2 from tilting.

[0054] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiment of the present application provides an in-situ measurement sampling device, and two groups of single-tube samplers 11 are also provided on the base 1 of the in-situ measurement sampling device. The two groups of single-tube samplers 11 are driven by a motor to penetrate into the seabed sediment and reset upward to complete the sampling. The two groups of single-tube samplers 11 are respectively close to the mechanical penetration measurement mechanism 8 and the mechanical shear measurement mechanism 9 to improve the consistency of the measurement position.

[0055] The sediment columnar sample obtained by the single-tube sampler 11 can be subjected to mechanical property analysis in the laboratory and compared with the mechanical in-situ measurement data to improve data reliability.

[0056] An underwater communication control compartment 12 and an underwater measurement control compartment 13 are also provided on the base 1. The underwater communication control compartment is used to communicate with the deck control terminal and can control the video component.

[0057] The underwater measurement control chamber 13 is used to control the acoustic measurement unit and the mechanical measurement unit, and process the data collected by them.

[0058] A video component is also provided on the base 1, and the video component includes an underwater camera 16, an underwater lighting lamp 18 and an altimeter 17. A sonic velocity meter 15 for measuring the sound velocity of seawater is also provided on the top of the slide 3. The underwater camera 16 is used to capture image information of seabed sediments underwater, the underwater lighting lamp 18 is used to illuminate the underwater camera 16 underwater, and the altimeter 17 is used to measure the height of the device from the seabed sediments.

[0059] How it works

[0060] An embodiment of the present application provides an in-situ measurement sampling device. Since the in-situ measurement sampling device of the present application is provided with a measurement frame, it includes a base 1 and a middle column 2 vertically connected to the top of the base 1, and a slide 3 is sleeved on the middle column 2, and the slide 3 slides up and down along the axial direction of the middle column 2; an acoustic measurement unit, which includes an acoustic transmitting assembly and an acoustic receiving probe 5 fixedly connected to the slide 3, and the acoustic receiving probe 5 extends vertically downward; a mechanical measurement unit, which includes a mechanical penetration measurement mechanism 8 and a mechanical shear measurement mechanism 9 fixedly connected to the base 1.

[0061] Therefore, the in-situ measurement sampling device of the present application integrates an acoustic transmitting assembly, an acoustic receiving probe 5, a mechanical penetration measurement mechanism 8, and a mechanical shear measurement mechanism 9. The acoustic transmitting assembly, the acoustic receiving probe 5, the mechanical penetration measurement mechanism 8, and the mechanical shear measurement mechanism 9 can perform in-situ measurements of acoustic properties and in-situ measurements of mechanical properties of seabed sediments at the same measurement point in a single operation, with high equipment utilization and improved measurement efficiency. The in-situ measurement sampling device can perform in-situ measurements of acoustic properties and in-situ measurements of mechanical properties at the same measurement point in a single operation, and the measurement data have good correlation. Sediment samples are obtained simultaneously during in-situ measurement, and the obtained samples can be compared with the in-situ measurement data through laboratory analysis to improve data reliability.

[0062] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0063] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0064] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. In-situ measurement sampling device, characterized in that: include: A measuring frame, comprising a base (1) and a center column (2) vertically connected to the top of the base (1), wherein a slide (3) is sleeved on the center column (2), and the slide (3) slides up and down along the axis direction of the center column (2); An acoustic measurement unit, comprising an acoustic transmitting assembly and an acoustic receiving probe rod (5) fixedly connected to the slide (3), wherein the acoustic receiving probe rod (5) extends vertically downward; A mechanical measurement unit, comprising a mechanical penetration measurement mechanism (8) and a mechanical shear measurement mechanism (9) fixedly connected to the base (1); The acoustic emission assembly comprises a shear wave emission probe rod (6), the shear wave emission probe rod (6) extends vertically downward, and a plurality of shear wave emission transducers (19) are arranged on the shear wave emission probe rod (6) along the axial direction of the shear wave emission probe rod (6); A plurality of hydrophones (20) are provided on the acoustic receiving probe rod (5) along the axial direction of the acoustic receiving probe rod (5) at the same height as and corresponding to the plurality of shear wave transmitting transducers (19) on the shear wave transmitting probe rod (6), and the hydrophones (20) receive the sound waves emitted by the shear wave transmitting transducers (19); The slide (3) is a rectangular structure, and the transverse wave transmitting probe (6) and the acoustic receiving probe (5) are arranged diagonally on the slide (3); The slide (3) is a rectangular structure, and two columnar samplers (10) are also provided on the slide (3). The two columnar samplers (10) are arranged diagonally on the slide (3) and are located at different diagonals from the acoustic receiving probe (5) and the shear wave transmitting probe (6); The base (1) is also provided with two groups of single-tube samplers (11), which are respectively close to the mechanical penetration measurement mechanism (8) and the mechanical shear measurement mechanism (9), and the single-tube samplers (11) obtain tubular samples of sediment.

2. The in-situ measurement sampling device according to claim 1, characterized in that: The acoustic emission component also includes a longitudinal wave emission transducer group (7), which is fixedly connected to the bottom of the slide (3) and close to the acoustic receiving probe (5), and the acoustic receiving probe (5) receives the sound waves emitted by the longitudinal wave emission transducer group (7).

3. The in-situ measurement sampling device according to claim 1, characterized in that: The slide (3) is provided with a counterweight (14) capable of adjusting the penetration depth of the acoustic receiving probe (5), the shear wave transmitting probe (6) and the columnar sampler (10); A displacement sensor is provided between the center column (2) and the slide (3), and the displacement sensor is used to measure the penetration depth of the acoustic receiving probe (5), the shear wave transmitting probe (6) and the columnar sampler (10).

4. The in-situ measurement sampling device according to claim 1, characterized in that: The top of the slide (3) is also provided with a sonic velocity meter (15) for measuring the sonic velocity of seawater.

5. The in-situ measurement sampling device according to claim 1, characterized in that: The base (1) is also provided with an underwater communication control compartment (12) and an underwater measurement control compartment (13); the underwater communication control compartment (12) is used to communicate with the deck control end, and the underwater measurement control compartment (13) is used to control the acoustic measurement unit and the mechanical measurement unit.

6. The in-situ measurement sampling device according to claim 1, characterized in that: The base (1) is also provided with a video component, which includes an underwater camera (16), an underwater lighting lamp (18) and an altimeter (17).

Images