Elevation in-situ long-term monitoring device for muddy tidal flat bed

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By setting up a monitoring device for anchor assembly and reference platform on muddy tidal beaches, combined with folding structure and bubble leveling device, the problem of accurate monitoring of tidal beach elevation changes is solved, and a high-precision and low-cost long-term monitoring effect is achieved.

CN222318032UActive Publication Date: 2025-01-07QINGDAO INST OF MARINE GEOLOGY +2

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Patent Information

Application Number: CN202421603071.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-07-09
Publication Date: 2025-01-07
Estimated Expiration: 2034-07-09

AI Technical Summary

Technical Problem

When monitoring changes in the elevation of tidal beaches, it is difficult for the prior art to achieve accurate and long-term fixation on the muddy tidal beach base bed, which is greatly disturbed by natural environment and man-made factors, and lacks effective monitoring devices.

Method used

A monitoring device including an anchor assembly, a reference platform, a measuring arm and a measuring ruler is designed. The anchor assembly is inserted into the muddy tidal beach base bed, and the reference platform is fixedly connected to the measuring arm, so that the measuring arm is ensured through leveling and locking devices. Horizontality and stability, a bubble leveler and a multi-section folding structure are installed on the measuring arm, and the measuring ruler is inserted into the slot for vertical measurement.

Benefits of technology

It realizes long-term accurate monitoring of the elevation changes of the tidal beach base bed on muddy tidal beaches. It has simple structure, simple operation, low cost, and can reach the millimeter level, reducing measurement errors caused by biological disturbances and is suitable for a wide range of applications.

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Abstract

The utility model provides an elevation in-situ long-term monitoring device for an argillaceous tidal flat bed, which comprises at least one anchor rod component, and the bottom of the anchor rod component is inserted into the argillaceous tidal flat bed; the reference platform is arranged at the upper part of the anchor rod assembly; the measuring arm is horizontally arranged in the reference platform and is detachably connected with the reference platform; and the one or more measuring rulers are vertically arranged on the measuring arm and are detachably connected with the measuring arm. According to the monitoring device, the anchor rod assembly, the reference platform, the measuring arm and the measuring scale are arranged, the bottom of the anchor rod assembly is inserted into the muddy tidal flat bed, the top of the anchor rod assembly is fixedly connected with the reference platform, the measuring arm is horizontally arranged on the reference platform, the measuring scale is vertically arranged on the measuring arm, and the monitoring device is simple in structure, easy and convenient to operate and low in investment cost; the device can accurately monitor elevation change of the tidal flat bed for a long time, and is high in practicability and worthy of popularization.

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Description

Technical Field

[0001] The utility model belongs to the technical field of coastal zone measurement, and particularly relates to an elevation in-situ long-term monitoring device for a muddy tidal flat bottom bed. Background Art

[0002] Monitoring the elevation of coastal tidal flats is an important survey method for studying the changes in erosion and deposition of tidal flats. Currently, the main methods used are the insertion of poles (usually two iron poles or bamboo poles), levels or total station measurements.

[0003] The accuracy of measurement using a level or total station is somewhat higher than that of the pole insertion method, but it is greatly affected by the natural environment of the tidal flat. Most tidal flats have tidal gullies and soft texture, making it difficult to accurately fix the instrument, so the observation accuracy will inevitably be affected. Relatively speaking, the pole insertion method is simple and easy, with low cost, but iron poles or bamboo poles are easily disturbed or damaged by natural or human factors, making it difficult to carry out long-term continuous and accurate elevation change measurements.

[0004] Currently, there is no reliable technical method or device that can effectively avoid the above problems. Utility Model Content

[0005] In order to achieve long-term and accurate monitoring of the elevation change of the tidal flat bottom, the utility model proposes an in-situ long-term monitoring device for the elevation of the muddy tidal flat bottom, and the scheme is as follows:

[0006] An in-situ long-term monitoring device for muddy tidal flat bottom elevation, comprising

[0007] At least one anchor assembly, the bottom of which is inserted into the muddy tidal flat bed;

[0008] A reference platform is arranged on the upper part of the anchor assembly;

[0009] A measuring arm, horizontally arranged on the reference platform and detachably connected to the reference platform;

[0010] One or more measuring rulers are vertically arranged on the measuring arm and are detachably connected to the measuring arm.

[0011] Furthermore, the anchor rod assembly includes a top anchor rod, a bottom anchor rod and an intermediate anchor rod located between the top anchor rod and the bottom anchor rod, the number of the intermediate anchor rods is N (N≥1), and adjacent anchor rods are fixedly connected by connecting pieces; the top anchor rod is fixedly connected to the reference platform by bolts, and the tail end of the bottom anchor rod is a threaded drill bit.

[0012] Furthermore, the connecting piece is configured as a butt screw head, and a thread matching the thread of the butt screw head is formed on the anchor rod connected to the butt screw head.

[0013] Furthermore, it also includes a leveling device, which is set to at least two and is used for horizontal leveling of the measuring arm. The leveling device is installed at the lower part of the reference platform, and includes a handle, an adjusting rod, a contact plate and a nut. One end of the adjusting rod penetrates into the reference platform, and the end of the adjusting rod located inside the reference platform is fixedly connected to the contact plate, and the contact plate abuts against the measuring arm. The end of the adjusting rod located outside the reference platform is fixedly connected to the handle, and the nut is threadedly connected to the adjusting rod located between the handle and the reference platform. The upper and lower positions of the measuring arm are adjusted by adjusting the distance between the nut and the adjusting rod to keep the measuring arm horizontal.

[0014] Furthermore, the measuring arm and the reference platform are detachably connected via a locking device, which is installed on the side of the reference platform and includes a handle I, an adjusting rod I, a contact plate I, and a nut I. One end of the adjusting rod I penetrates into the reference platform, the end of the adjusting rod I located inside the reference platform is fixedly connected to the contact plate I, the contact plate I abuts against the measuring arm, the end of the adjusting rod I located outside the reference platform is fixedly connected to the handle I, and the nut I is threadedly connected to the adjusting rod I. The left and right position of the measuring arm is adjusted by adjusting the distance between the nut I and the adjusting rod I so that the measuring arm is fixed inside the reference platform.

[0015] Furthermore, the longitudinal section of the reference platform is U-shaped, and the measuring arm is configured as a square profile.

[0016] Furthermore, the number of the anchor rod assemblies is set to two, which are symmetrically arranged at the lower part of the reference platform; and the measuring arm is set to a multi-section folding structure.

[0017] Furthermore, it also includes a float, which is fixedly connected to the anchor rod through a connecting rope.

[0018] Furthermore, the length of the measuring ruler is greater than the vertical distance between the measuring arm and the muddy tidal flat bottom, and the measuring arm is provided with a plurality of slots for inserting the measuring ruler.

[0019] Furthermore, a horizontal bubble leveler is provided on the measuring arm.

[0020] Compared with the prior art, the advantages of the utility model are as follows:

[0021] The utility model discloses an in-situ long-term elevation monitoring device, which is equipped with an anchor rod assembly, a reference platform, a measuring arm and a measuring ruler. The bottom of the anchor rod assembly is inserted into the muddy tidal flat bottom bed, and the top is fixedly connected to the reference platform. The measuring arm is horizontally arranged on the reference platform, and the measuring ruler is vertically arranged on the measuring arm. The monitoring device has a simple structure, is easy to operate, and has a low investment cost. It can accurately monitor the elevation change of the tidal flat bottom bed for a long time, has strong practicality, and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a monitoring device according to an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a monitoring device according to an embodiment of the utility model;

[0024] Figure 3 yes Figure 2 A schematic side view of a cross-sectional structure;

[0025] Figure 4 This is a schematic diagram of the top anchor structure of an embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of a connector according to an embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the intermediate anchor rod in one embodiment of the utility model;

[0028] Figure 7 It is a schematic diagram of the connection structure between the leveling device and the locking device and the reference platform in one embodiment of the utility model;

[0029] Figure 8 The utility model is a schematic diagram of the structure of the anchor rod assembly after the gasoline pile driver is installed in one embodiment.

[0030] In the above figures: 1. anchor rod assembly; 11. top anchor rod; 12. middle anchor rod; 13. bottom anchor rod; 131. threaded drill bit; 14. connector; 2. reference platform; 3. measuring arm; 31. slot; 4. measuring ruler; 5. leveling device; 51. handle; 52. adjusting rod; 53. contact plate; 54. nut; 6. locking device; 7. float; 8. gasoline pile driver; 81. coupling; 9. lifting ring; A. sea surface; B. seabed surface. DETAILED DESCRIPTION

[0031] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0032] like Figures 1 to 8As shown, in order to achieve long-term and accurate monitoring of tidal flat bottom elevation changes, the present invention designs an in-situ long-term monitoring device for muddy tidal flat bottom elevation. The monitoring device includes a reference platform 2, a measuring arm 3, an anchor assembly 1, a leveling device 5, a locking device 6, a measuring ruler 4 and a float 7.

[0033] The number of the anchor rod assembly 1 is at least one. In this embodiment, the number of the anchor rod assembly 1 is set to two, which are symmetrically arranged at the lower part of the reference platform 2.

[0034] The measuring arm 3 can be a whole structure or a multi-section folding structure. The folding connection method can be selected from existing connection methods, such as hinge connection, or other connection methods, which are not limited here. The measuring arm 3 adopts a multi-section folding structure, which is convenient for carrying and transporting. In this embodiment, the measuring arm 3 adopts a two-section folding structure, see Figure 1 , 2 .

[0035] See also Figure 7 A locking device 6 for fixing the measuring arm 3 is provided on the side of the reference platform 2, and a leveling device 5 for leveling the measuring arm 3 is provided at the bottom. The bottoms of both ends of the reference platform 2 are supported by the anchor rod assembly 1.

[0036] In this embodiment, the total diameter of the anchor assembly 1 is 5 cm, the total length is 1.2 m, and the distance between the left and right anchor assemblies 1 is 40 cm.

[0037] For details, see Figure 4 , 5 , 6, 8, the anchor rod assembly 1 includes a top anchor rod 11, a bottom anchor rod 13 and an intermediate anchor rod 12 located between the top anchor rod 11 and the bottom anchor rod 13. The number of the intermediate anchor rods 12 is 1 or more, and the specific number can be determined according to actual conditions. Adjacent anchor rods are fixedly connected by butt screw heads, and the anchor rods connected to the butt screw heads are provided with threads that match the threads of the butt screw heads. The top anchor rod 11 is fixedly connected to the reference platform 2 by bolts. The tail end of the bottom anchor rod 13 is a threaded drill bit 131, which is convenient for insertion into the tidal flat bottom bed, that is, below the seabed surface B.

[0038] More specifically, the bottom anchor rod 13 body is welded to the threaded drill bit 131, and the anchor rod assembly 1 is rotated and inserted into the tidal flat by a gasoline pile driver 8 (connected to the top of the anchor rod assembly 1 through a coupling 81), see Figure 8 The upper and lower adjacent anchor rods are connected with butt screw heads. After the middle anchor rod 12 is connected, the gasoline pile driver 8 is used to continue inserting. The insertion depth is generally 4-5 meters (based on the fact that the anchor rod will not sink naturally). The actual insertion depth can be controlled by increasing or decreasing the number of sections of the middle anchor rod 12. In order to facilitate the measurement of the exposed beach surface anchor rod height, about 60 cm is generally reserved. If it is a silted tidal flat, it can be appropriately extended.

[0039] A horizontal bubble leveler is installed in the middle of the upper surface of the measuring arm 3. When measuring, the measuring arm 3 is first placed on the reference platform 2, and the bubble of the horizontal bubble leveler is centered by adjusting the leveling devices 5 on both sides. After leveling, the measuring arm 3 is fixed by the locking device 6 on the side of the reference platform 2.

[0040] For details, see Figure 2 The leveling device 5 includes a handle 51, an adjusting rod 52, a contact plate 53 and a nut 54. One end of the adjusting rod 52 penetrates into the reference platform 2. The end of the adjusting rod 52 located inside the reference platform 2 is fixedly connected to the contact plate 53. The contact plate 53 abuts against the measuring arm 3. The end of the adjusting rod 52 located outside the reference platform 2 is fixedly connected to the handle 51. The nut 54 is threadedly connected to the adjusting rod 52 located between the handle 51 and the reference platform 2. The upper and lower positions of the measuring arm 3 are adjusted by adjusting the distance between the nut 54 and the adjusting rod 52 to keep the measuring arm 3 level.

[0041] Specifically, the measuring arm 3 and the reference platform 2 are detachably connected via a locking device 6, which is mounted on the side of the reference platform 2. The locking device 6 has the same structure as the leveling device 5, see Figure 3 , including a handle Ⅰ, an adjusting rod Ⅰ, a contact plate Ⅰ, and a nut Ⅰ. One end of the adjusting rod Ⅰ penetrates into the reference platform, the end of the adjusting rod Ⅰ located inside the reference platform 2 is fixedly connected to the contact plate Ⅰ, the contact plate Ⅰ abuts against the measuring arm 3, the end of the adjusting rod Ⅰ located outside the reference platform 2 is fixedly connected to the handle Ⅰ, and the nut Ⅰ is threadedly connected to the adjusting rod Ⅰ. The left and right positions of the measuring arm 3 are adjusted by adjusting the distance between the nut Ⅰ and the adjusting rod Ⅰ so that the measuring arm 3 is fixed inside the reference platform 2.

[0042] Furthermore, the longitudinal section of the reference platform 2 is U-shaped. In this embodiment, a corrosion-resistant bent sheet metal is selected. In order to facilitate lifting, a lifting ring 9 is fixedly connected to the bottom of the reference platform 2. Figure 2 The measuring arm 3 is configured as a square profile. In this embodiment, an aluminum profile is used as an example for illustration.

[0043] In this embodiment, see Figure 1, take the example of 5 slots 31 respectively provided on the side walls at the left and right ends of the measuring arm 3 for inserting the measuring ruler 4, and the spacing between adjacent slots 31 is set to 10cm. When measuring, the measuring ruler 4 is inserted into the slot 31 to form a vertical state to the ground, and the height from the measuring arm 3 to the beach surface is measured and recorded in turn. Each end of the measuring arm 3 measures and records 5 sets of data, and a total of 10 sets of data are recorded each time monitoring, which can effectively reduce the measurement error caused by biological disturbance (such as crab holes) and make the observation results more accurate and rigorous. Repeat the above operation when monitoring is carried out later. After multiple measurements in the later stage, the elevation change data of the monitoring point can be provided for the study of tidal flat erosion and siltation, and the rate of tidal flat erosion or siltation here can be calculated by comparing the annual monitoring data. The measurement accuracy of the tidal flat elevation monitoring device can reach the millimeter level, with the advantages of high measurement accuracy and low cost, and can be widely promoted and applied.

[0044] In this embodiment, the slot 31 is configured as a U-shaped slot plate, which is connected to the side wall of the measuring arm 3 by screws.

[0045] Specifically, the measuring ruler 4 is a ruler with a scale, and a circular chassis can be set at the bottom, so that it is convenient to quickly contact the seabed surface B. The length of the measuring ruler 4 is greater than the vertical distance between the measuring arm 3 and the seabed surface B.

[0046] Specifically, the buoy 7 is fixedly connected to the anchor rod through a connecting rope. The function of the buoy 7 is to facilitate and quickly find the monitoring device, especially when the sea level A is high after high tide and covers the monitoring device, the buoy 7 can be used to quickly find the location of the monitoring device.

[0047] The above-described implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. An in-situ long-term monitoring device for the elevation of muddy tidal flat bottom, characterized in that: include At least one anchor assembly (1), the bottom of the anchor assembly (1) being inserted into the muddy tidal flat bed; A reference platform (2) is arranged on the upper part of the anchor rod assembly (1); A measuring arm (3) is horizontally arranged on the reference platform (2) and is detachably connected to the reference platform (2); One or more measuring rulers (4) are vertically arranged on the measuring arm (3) and are detachably connected to the measuring arm (3).

2. The elevation in-situ long-term monitoring device according to claim 1, characterized in that: The anchor rod assembly (1) comprises a top anchor rod (11), a bottom anchor rod (13) and an intermediate anchor rod (12) located between the top anchor rod (11) and the bottom anchor rod (13), wherein the number of the intermediate anchor rods (12) is N, where N≥1, and adjacent anchor rods are fixedly connected via a connecting piece (14); the top anchor rod (11) is fixedly connected to the reference platform (2) via bolts, and the tail end of the bottom anchor rod (13) is a threaded drill bit (131).

3. The elevation in-situ long-term monitoring device according to claim 2 is characterized in that: The connecting piece (14) is configured as a butt screw head, and a thread matching the thread of the butt screw head is provided on the anchor rod connected to the butt screw head.

4. The elevation in-situ long-term monitoring device according to claim 1 is characterized in that: The measuring arm (3) also comprises a leveling device (5), at least two of which are arranged to be used for leveling the measuring arm (3). The leveling device (5) is installed at the lower part of the reference platform (2), and comprises a handle (51), an adjusting rod (52), a contact plate (53) and a nut (54). One end of the adjusting rod (52) penetrates into the reference platform (2). The end of the adjusting rod (52) located inside the reference platform (2) is fixedly connected to the contact plate (53). The contact plate (53) abuts against the measuring arm (3). The end of the adjusting rod (52) located outside the reference platform (2) is fixedly connected to the handle (51). The nut (54) is threadedly connected to the adjusting rod (52) located between the handle (51) and the reference platform (2). The upper and lower positions of the measuring arm (3) are adjusted by adjusting the distance between the nut (54) and the adjusting rod (52) so that the measuring arm (3) remains horizontal.

5. The elevation in-situ long-term monitoring device according to claim 4 is characterized in that: The measuring arm (3) and the reference platform (2) are detachably connected via a locking device (6). The locking device (6) is mounted on a side of the reference platform (2) and comprises a handle I, an adjusting rod I, a contact plate I, and a nut I. One end of the adjusting rod I penetrates into the reference platform (2). The end of the adjusting rod I located inside the reference platform (2) is fixedly connected to the contact plate I. The contact plate I abuts against the measuring arm (3). The end of the adjusting rod I located outside the reference platform (2) is fixedly connected to the handle I. The nut I is threadedly connected to the adjusting rod I. The left-right position of the measuring arm (3) is adjusted by adjusting the distance between the nut I and the adjusting rod I so that the measuring arm (3) is fixed inside the reference platform (2).

6. The elevation in-situ long-term monitoring device according to claim 1 is characterized in that: The longitudinal section of the reference platform (2) is U-shaped, and the measuring arm (3) is configured as a square profile.

7. The elevation in-situ long-term monitoring device according to claim 1 is characterized in that: The number of the anchor rod assemblies (1) is set to two, which are symmetrically arranged at the lower part of the reference platform (2); and the measuring arm (3) is set to a multi-section folding structure.

8. The elevation in-situ long-term monitoring device according to claim 1 is characterized in that: It also includes a floating ball (7), wherein the floating ball (7) is fixedly connected to the anchor rod via a connecting rope.

9. The elevation in-situ long-term monitoring device according to claim 1, characterized in that: The length of the measuring ruler (4) is greater than the vertical distance between the measuring arm (3) and the muddy tidal flat bottom, and the measuring arm (3) is provided with a plurality of slots (31) for inserting the measuring ruler (4).

10. The elevation in-situ long-term monitoring device according to claim 1, characterized in that: The measuring arm (3) is provided with a horizontal bubble leveler.