Soft soil foundation settlement monitoring device

Abstract

The utility model relates to the technical field of foundation monitoring, in particular to a soft soil foundation settlement monitoring device which comprises a vertically-arranged embedded column and a rotating cylinder rotationally arranged in the embedded column, a rotating cavity matched with the rotating cylinder is inwards and coaxially formed in the upper end face of the embedded column, the rotating cylinder is rotationally arranged in the rotating cavity, and the rotating cylinder is arranged in the rotating cavity. A strip-shaped containing groove is formed in the peripheral wall of the embedded column, the containing groove and the embedded column are coaxially arranged, a fixing plate is rotationally arranged in the containing groove and can be completely located in the containing groove, a first gear is fixedly connected to the end face of the fixing plate, and a communicating hole communicating with the rotating cavity and the containing groove is formed in the bottom end of the containing groove. The first gear is rotationally arranged in the containing groove and the communicating hole, annular teeth are coaxially arranged at the corresponding positions of the peripheral wall of the rotating cylinder, the annular teeth are meshed with the first gear, and the effects that the monitoring device is fixed in the soft soil foundation, and the accuracy of monitoring data is improved are achieved.

Description

Technical Field

[0001] This application relates to the field of foundation monitoring technology, and in particular to a soft soil foundation settlement monitoring device. Background Technology

[0002] Currently, when encountering soft soil geological layers during construction, soft soil layers typically possess engineering characteristics such as high water content, low bearing capacity, high compressibility, and significant rheological properties. Their natural foundation bearing capacity often fails to meet the load requirements of the superstructure. Under the action of construction loads such as pile foundation construction, foundation pit excavation, and embankment filling, they are prone to unexpected settlement deformation. Therefore, systematic detection of ground settlement is of crucial engineering significance.

[0003] Existing monitoring devices typically consist of a long cylindrical column vertically embedded in the soft soil foundation, with the upper end of the monitoring device positioned above the surface of the soft soil foundation. The height of the upper end of the monitoring device is measured using a level instrument to determine whether the soft soil foundation has settled.

[0004] The existing technical solutions mentioned above have the following drawbacks: due to the significant rheological properties and high compressibility of soft soil foundations, the soil is prone to lateral creep, causing the buried cylinder to tilt as a whole and shift horizontally. Furthermore, the large difference in stiffness between the cylinder and the soil makes it easy for the monitoring device to debond from the soft soil foundation, resulting in inaccurate monitoring data. Utility Model Content

[0005] In order to fix the monitoring device in the soft soil foundation and improve the accuracy of the monitoring data, this application provides a soft soil foundation settlement monitoring device.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] A soft soil foundation settlement monitoring device includes a vertically installed column and a rotating cylinder rotatably installed inside the column. The upper end of the column has a rotating cavity coaxially formed with respect to the rotating cylinder. The rotating cylinder is rotatably installed within the rotating cavity. A strip-shaped receiving groove is formed on the outer periphery of the column, coaxially with the column. A fixing plate is rotatably installed within the receiving groove, completely positioned within it. A first gear is fixedly connected to the end face of the fixing plate. A connecting hole is formed at the bottom end of the receiving groove, connecting the rotating cavity and the receiving groove. The first gear is rotatably installed within the receiving groove and the connecting hole. A ring-shaped tooth is coaxially formed on the corresponding position of the outer periphery of the rotating cylinder, meshing with the first gear.

[0008] By adopting the above technical solution, and by setting up a buried column, a rotating cylinder, a fixed plate, a first gear, and an annular gear, the fixed plate can be rotated by the meshing of the annular gear and the first gear when the rotating cylinder rotates. This allows the fixed plate to extend or retract from the receiving groove. The buried column is buried in the soft soil foundation, and the height of the upper end face of the buried column can be used to monitor whether the soft soil foundation has settled. When the monitoring device is buried in the soft soil foundation, rotating the rotating cylinder causes the fixed plate to extend out of the receiving groove and insert into the soft soil foundation, increasing the contact area between the monitoring device and the soft soil foundation. This securely fixes the monitoring device in the soft soil foundation and improves the accuracy of the monitoring data.

[0009] Optionally, a notch is provided at the upper end of the outer wall of the rotating cavity, the notch is connected to the upper end face of the embedded column, and an operating rod is fixedly connected to the outer peripheral wall of the rotating cylinder. The end of the operating rod passes through the notch and the end face of the operating rod is fixedly connected to the rotating cylinder.

[0010] By adopting the above technical solution and setting an operating lever, the operating lever can be directly operated when the rotating cylinder needs to be rotated. The operating lever drives the rotating cylinder to rotate in the rotating cavity, which facilitates the rotation operation of the rotating cylinder. In turn, it is convenient to control the rotation of the fixed plate through the rotating cylinder, so as to realize the storage or extension of the fixed plate in the receiving groove.

[0011] Optionally, the operating lever has a receiving cavity on its end face away from the rotating cylinder. The receiving cavity contains a button, a second gear, a spring, and a fixing post. The button is slidably disposed in the receiving cavity, and the spring is disposed between the button and the bottom of the receiving cavity. The second gear is hinged to the side wall of the receiving cavity, and the axis of the second gear is perpendicular to the length direction of the button. The side wall of the button is machined with teeth that mesh with the gear. The fixing post passes through the operating lever and its end is located in the receiving cavity. The side wall of the fixing post is machined with teeth that mesh with the gear. The length direction of the fixing post is perpendicular to both the axis of the second gear and the length direction of the button. A first positioning hole adapted to the fixing post is provided at the bottom of the notch, and the end of the fixing post can be inserted into the first positioning hole.

[0012] By adopting the above technical solution, and by setting a button, a second gear, a spring, and a fixing post, the button is slidably disposed in the receiving cavity, the spring is located between the button and the bottom of the cavity, the second gear is hinged to the side wall of the receiving cavity and meshes with the teeth on the button and the fixing post respectively, the end of the fixing post can be inserted into the first positioning hole, the fixing post extends out and is inserted into the first positioning hole, and the spring keeps the fixing post in the first positioning hole, thereby fixing the operating rod in a specific position, keeping the fixing plate in the extended state, and firmly fixing the monitoring device in the soft soil foundation, ensuring that the fixing plate will not rotate or retract arbitrarily during the monitoring process.

[0013] Optionally, a second positioning hole is provided at the bottom of the notch and spaced apart from the first positioning hole. The second positioning hole is adapted to the fixing post, and the end of the fixing post can be inserted into the second positioning hole.

[0014] By adopting the above technical solution, and by opening a second positioning hole, which is spaced apart from the first positioning hole and both are adapted to the fixing column, when the end of the fixing column is inserted into the second positioning hole, the operating rod is in another fixed position. At this time, the fixing plate is stored in the receiving groove, which facilitates the fixed state of the monitoring device before transportation and installation, and facilitates the installation and disassembly of the monitoring device. At the same time, it provides positioning and fixation when the fixing plate needs to be retracted, ensuring that the fixing plate is stably stored.

[0015] Optionally, the end of the fixing post inserted into the first positioning hole is machined into a spherical shape.

[0016] By adopting the above technical solution, the end of the fixing post is processed into a spherical shape. The smoothness of the spherical end can reduce the frictional resistance when the fixing post is inserted into the positioning hole, making the fixing post easier to insert into the first positioning hole and the second positioning hole, improving the convenience of operation, and avoiding the situation where the positioning hole is difficult to insert or damaged due to the stiffness of the fixing post end.

[0017] Optionally, the upper end face of the embedded column is provided with a circular sealing cover coaxially via a flange and bolts.

[0018] By adopting the above technical solution and setting a sealing cover, the rotating cavity can be sealed, preventing external soil, moisture and other substances from entering the rotating cavity, reducing the possibility of the rotating cylinder detaching from the buried column, ensuring the stable rotation of the rotating cylinder in the rotating cavity, and ensuring the integrity of the overall structure of the monitoring device.

[0019] Optionally, a laser head is fixed to the surface of the enclosed cover away from the embedded column.

[0020] By adopting the above technical solution and setting up a laser head, the laser head can be used to emit laser light, which, together with a level, can be used to measure the height, providing a precise measurement benchmark for settlement monitoring. This makes the height data of each measurement more accurate and stable, and facilitates the comparison of multiple measurement data to determine the settlement of the soft soil foundation, thereby improving the reliability of the monitoring data.

[0021] Optionally, the sealing cover is provided with a U-shaped handle on the plate surface opposite to the buried column, and the U-shaped opening of the handle faces the sealing cover.

[0022] By adopting the above technical solution and setting a handle, operators can easily grasp the handle and apply external force to move or rotate the monitoring device during installation or disassembly, thereby improving the convenience of installation and disassembly of the monitoring device, reducing manpower consumption, and making the operation more labor-saving and efficient.

[0023] Optionally, the surfaces of the embedded column, the rotating cylinder, the fixed plate, the first gear, and the rotating cavity wall are all coated with a layer of anti-corrosion coating.

[0024] By adopting the above technical solution, an anti-corrosion protective layer can be formed by applying anti-corrosion coating to the surface of the buried column, rotating cylinder, fixed plate, first gear, and rotating cavity wall. This isolates moisture and corrosive substances in the soft soil foundation from direct contact with the metal parts of the monitoring device, reduces the corrosion rate of these parts, improves the corrosion resistance of the monitoring device, thereby extending the service life of the monitoring device and ensuring its long-term stable operation.

[0025] In summary, this application has the following technical effects:

[0026] 1. By setting up a buried column, a rotating cylinder, a fixed plate, a first gear, and an annular gear, the fixed plate can be rotated by the meshing of the annular gear and the first gear when the rotating cylinder rotates, so that the fixed plate can extend or retract from the receiving groove. The buried column is buried in the soft soil foundation, and the height of the upper end face of the buried column can be used to monitor whether the soft soil foundation has settled. When the monitoring device is buried in the soft soil foundation, the rotating cylinder is rotated, and the fixed plate extends out of the receiving groove and is inserted into the soft soil foundation, increasing the contact area between the monitoring device and the soft soil foundation, thereby fixing the monitoring device firmly in the soft soil foundation and improving the accuracy of the monitoring data.

[0027] 2. By setting up an operating lever, the operating lever can be directly operated when it is necessary to rotate the rotating cylinder. The operating lever drives the rotating cylinder to rotate in the rotating cavity, which facilitates the rotation operation of the rotating cylinder. In turn, it is convenient to control the rotation of the fixed plate through the rotating cylinder, so as to realize the storage or extension of the fixed plate in the receiving groove.

[0028] 3. By setting up a button, a second gear, a spring, and a fixing post, the button is slidably disposed in the receiving cavity, the spring is located between the button and the bottom of the cavity, the second gear is hinged to the side wall of the receiving cavity and meshes with the teeth on the button and the fixing post respectively, the end of the fixing post can be inserted into the first positioning hole, the fixing post extends out and is inserted into the first positioning hole, the spring keeps the fixing post in the first positioning hole, thereby fixing the operating rod in a specific position, keeping the fixing plate in the extended state, and firmly fixing the monitoring device in the soft soil foundation, ensuring that the fixing plate will not rotate or retract arbitrarily during the monitoring process. Attached Figure Description

[0029] Figure 1 This is a structural diagram of the object of this application;

[0030] Figure 2 This is a structural diagram of this application after it has been opened;

[0031] Figure 3 This is a structural diagram of the fixing component of this application;

[0032] Figure 4 This is a structural diagram of the positioning structure of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Fixing component; 11. Embedded post; 111. Rotating cavity; 112. Receiving groove; 113. Connecting hole; 114. Notch; 115. First positioning hole; 116. Second positioning hole; 12. Rotating cylinder; 121. Annular tooth; 13. Fixing plate; 131. First gear; 132. Hinge post; 14. Sealing cover; 141. Laser head; 142. Handle; 2. Positioning structure; 21. Operating lever; 211. Receiving cavity; 22. Button; 23. Second gear; 24. Fixing post. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application discloses a soft soil foundation settlement monitoring device, referring to... Figure 1 The monitoring device includes a fixed component 1 embedded in the soft soil foundation and a positioning structure 2 installed on the fixed component 1. The fixed component 1 is embedded in the soft soil foundation and can settle with the soft soil foundation, which facilitates subsequent settlement data measurement by a level instrument. The positioning structure 2 can position the fixed component 1 in the soft soil foundation, so that the fixed component 1 is stably connected to the soft soil foundation, reducing the possibility of the monitoring device separating from the soft soil foundation.

[0036] Combination Figure 1 and Figure 3 The fixing assembly 1 includes a vertically arranged embedded column 11, a rotating cylinder 12 rotatably disposed inside the embedded column 11, and a sealing cover 14 disposed on the upper end of the embedded column 11. The embedded column 11 is a cylinder, and a cylindrical rotating cavity 111 is coaxially formed with the upper end of the embedded column 11 facing inward. The rotating cylinder 12 is a cylinder, adapted to the rotating cavity 111, and rotatably disposed inside the rotating cavity 111. The inner and outer walls of the rotating cylinder 12 are slidably attached to the side walls of the rotating cavity 111, respectively, and the upper end face of the rotating cylinder 12 is flush with the upper end face of the embedded column 11.

[0037] Combination Figure 1 and Figure 3The outer peripheral wall of the buried column 11 is provided with a receiving groove 112. The receiving groove 112 is strip-shaped and is coaxial with the buried column 11. There are nine receiving grooves 112. The nine receiving grooves 112 are divided into groups of three. The three receiving grooves 112 in each group are distributed at equal angles on the outer peripheral wall of the buried column 11 with the axis of the buried column 11 as the center. The three groups of receiving grooves 112 are evenly distributed along the axis of the buried column 11. A fixing plate 13 is rotatably installed inside the receiving groove 112. The fixing plate 13 is a metal strip plate. The length direction of the fixing plate 13 is perpendicular to the axis of the buried column 11. The surface of the fixing plate 13 is perpendicular to the side wall of the receiving groove 112. A first gear 131 is fixedly connected to one end face of the fixing plate 13. The axis of the first gear 131 is parallel to the axis of the buried column 11. The end face of the fixing plate 13 is fixedly connected to the teeth of the peripheral wall of the first gear 131. A connecting hole 113 is opened at the end of the receiving groove 112 on the same side as the first gear 131. The connecting hole 113 connects the bottom of the receiving groove 112 and the rotating cavity 111. The first gear 131 is rotatably installed in the receiving groove 112 and the connecting hole 113.

[0038] Combination Figure 1 and Figure 3 The first gear 131 has hinged posts 132 coaxially fixed to both ends. The hinged posts 132 are cylindrical and rotatably embedded in the side wall of the receiving groove 112. The fixing plate 13 can be completely located in the receiving groove 112. The rotation of the first gear 131 can drive the fixing plate 13 to be located outside the embedded post 11. The teeth of the peripheral wall of the first gear 131 protrude from the outer wall of the rotating cavity 111. The outer peripheral wall of the rotating cylinder 12 is provided with annular teeth 121 at corresponding positions. The annular teeth 121 are ring-shaped. 21 is coaxially arranged with the rotating cylinder 12. Three annular teeth 121 are provided, and the three annular teeth 121 correspond to three sets of receiving grooves 112 respectively. The annular teeth 121 mesh with the first gear 131. When the rotating cylinder 12 rotates, the fixed plate 13 can be rotated through the first gear 131. When the monitoring device is buried in the soft soil foundation, the fixed plate 13 extends out of the receiving groove 112 and can be inserted into the soft soil foundation, increasing the contact area between the monitoring device and the soft soil foundation and enhancing the stability of the monitoring device in the soft soil foundation.

[0039] Combination Figure 1 and Figure 2 The sealing cover 14 is coaxially arranged with the buried column 11. The sealing cover 14 is a circular plate, and its outer peripheral wall is flush with the outer peripheral wall of the buried column 11. The sealing cover 14 can seal the rotating cavity 111, reducing the possibility of the rotating cylinder 12 detaching from the buried column 11. The sealing cover 14 is fixedly connected to the buried column 11 by flanges and bolts. A T-shaped laser head 141 is provided on the plate surface of the sealing cover 14 away from the buried column 11. The T-shaped foot of the laser head 141 is fixedly connected to the plate surface of the sealing cover 14. The laser head 141 is used in conjunction with a level to observe and record the height, and to determine whether the soft soil foundation has settled and to obtain settlement data through multiple data.

[0040] Combination Figure 1 and Figure 2 The sealing cover 14 is provided with a U-shaped handle 142 on the plate surface opposite to the buried column 11. The end of the handle 142 is fixed to the plate surface of the sealing cover 14, and the U-shaped opening of the handle 142 faces the sealing cover 14. The handle 142 facilitates the installation and removal of the monitoring device.

[0041] Combination Figure 1 and Figure 4 A notch 114 is provided at the upper end of the outer wall of the rotating cavity 111. The notch 114 is connected to the upper end face of the embedded column 11. The notch 114 is strip-shaped and is coaxially arranged with the embedded column 11. The positioning structure 2 includes an operating rod 21. The operating rod 21 is a square rod. The end of the operating rod 21 passes through the notch 114. The end face of the operating rod 21 is fixed to the outer peripheral wall of the rotating cylinder 12. The length direction of the operating rod 21 is perpendicular to the axis of the rotating cylinder 12.

[0042] Combination Figure 3 and Figure 4 An accommodating cavity 211 is provided on the end face of the operating lever 21 away from the rotating cylinder 12. The accommodating cavity 211 is square columnar and its length direction is parallel to the length direction of the operating lever 21. A second gear 23 is hinged inside the accommodating cavity 211. The axis of the second gear 23 is perpendicular to the length direction of the operating lever 21. A button 22 is slidably disposed inside the accommodating cavity 211. The button 22 is square columnar and is adapted to the accommodating cavity 211 and slidably disposed inside the accommodating cavity 211. The side wall of the button 22 near the bottom of the accommodating cavity 211 is machined with teeth that mesh with the second gear 23. The length direction of the button 22 is parallel to the length direction of the operating lever 21.

[0043] Combination Figure 3 and Figure 4 A spring is also installed inside the receiving cavity 211. The spring is located between the button 22 and the bottom of the receiving cavity 211. One end of the spring is fixed to the end face of the button 22, and the other end is fixed to the bottom of the receiving cavity 211. A square hole is opened on the side wall of the receiving cavity 211, which connects the receiving cavity 211 and the side wall of the operating rod 21 away from the sealing cover 14. A fixing post 24 is also installed inside the receiving cavity 211. The fixing post 24 is adapted to the square hole and is slidably installed in the square hole. The length direction of the fixing post 24 is perpendicular to the length direction of the button 22. The fixing member is machined with teeth on the side wall inside the receiving cavity 211, and the teeth mesh with the second gear 23.

[0044] Combination Figure 3 and Figure 4The bottom of the notch 114 is provided with a first positioning hole 115 and a second positioning hole 116 spaced apart. Both the first positioning hole 115 and the second positioning hole 116 are adapted to the end of the fixing post 24. The end of the fixing post 24 located outside the operating rod 21 can be inserted into the first positioning hole 115 and the second positioning hole 116. When the fixing post 24 is located in the first positioning hole 115, the fixing plate 13 rotates to the outside of the embedded post 11. When the fixing post 24 is located in the second positioning hole 116, the fixing plate 13 is housed in the receiving groove 112. The end face of the fixing post 24 away from the closing cover 14 is machined into a spherical shape, making it easier for the fixing post 24 to be inserted into the first positioning hole 115 and the second positioning hole 116.

[0045] Reference Figure 3 The outer surface of the embedded column 11, the surface of the fixing plate 13, the surface of the first gear 131, the surface of the rotating cylinder 12, and the cavity wall of the rotating cavity 111 are all coated with an anti-corrosion coating to reduce the corrosion of the monitoring device by moisture in the soft soil foundation and improve the service life of the monitoring device.

[0046] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A soft soil foundation settlement monitoring device, characterized in that: The device includes a vertically installed anchor column (11) and a rotating cylinder (12) rotatably installed inside the anchor column (11). The upper end of the anchor column (11) has a coaxially formed rotating cavity (111) adapted to the rotating cylinder (12). The rotating cylinder (12) is rotatably installed within the rotating cavity (111). A strip-shaped receiving groove (112) is formed on the outer peripheral wall of the anchor column (11). The receiving groove (112) is coaxially arranged with the anchor column (11), and a fixing plate (13) is rotatably installed within the receiving groove (112). The fixed plate (13) can be completely located in the receiving groove (112). The end face of the fixed plate (13) is fixedly connected to the first gear (131). The bottom end of the receiving groove (112) is provided with a connecting hole (113) connecting the rotating cavity (111) and the receiving groove (112). The first gear (131) is rotatably arranged in the receiving groove (112) and the connecting hole (113). The outer peripheral wall of the rotating cylinder (12) is coaxially provided with an annular tooth (121) at the corresponding position. The annular tooth (121) meshes with the first gear (131).

2. The soft soil foundation settlement monitoring device according to claim 1, characterized in that: The upper end of the outer wall of the rotating cavity (111) is provided with a notch (114), the notch (114) is connected to the upper end face of the embedded column (11), and an operating rod (21) is fixedly connected to the outer peripheral wall of the rotating cylinder (12). The end of the operating rod (21) is inserted into the notch (114), and the end face of the operating rod (21) is fixedly connected to the rotating cylinder (12).

3. The soft soil foundation settlement monitoring device according to claim 2, characterized in that: The operating lever (21) has a receiving cavity (211) on its end face away from the rotating cylinder (12). A button (22), a second gear (23), a spring, and a fixing post (24) are disposed within the receiving cavity (211). The button (22) is slidably disposed within the receiving cavity (211). The spring is disposed between the button (22) and the bottom of the receiving cavity (211). The second gear (23) is hinged to the side wall of the receiving cavity (211), and the axis of the second gear (23) is perpendicular to the length direction of the button (22). The side wall of the button (22) is reinforced with... The fixed post (24) is formed with teeth that mesh with the second gear (23). The fixed post (24) is inserted into the operating rod (21) and its end is located in the receiving cavity (211). The side wall of the fixed post (24) is formed with teeth that mesh with the second gear (23). The length direction of the fixed post (24) is perpendicular to the axis of the second gear (23) and the length direction of the button (22). The bottom of the notch (114) is provided with a first positioning hole (115) that is adapted to the fixed post (24). The end of the fixed post (24) can be inserted into the first positioning hole (115).

4. The soft soil foundation settlement monitoring device according to claim 3, characterized in that: The bottom of the notch (114) is provided with a second positioning hole (116) spaced apart from the first positioning hole (115). The second positioning hole (116) is adapted to the fixing post (24), and the end of the fixing post (24) can be inserted into the second positioning hole (116).

5. A soft soil foundation settlement monitoring device according to claim 3, characterized in that: The end of the fixed post (24) inserted into the first positioning hole (115) is processed into a spherical shape.

6. A soft soil foundation settlement monitoring device according to claim 1, characterized in that: The upper end face of the buried column (11) is provided with a circular closed cover (14) through a flange and bolts.

7. A soft soil foundation settlement monitoring device according to claim 6, characterized in that: The laser head (141) is fixed to the plate surface of the closed cover (14) away from the buried column (11).

8. A soft soil foundation settlement monitoring device according to claim 6, characterized in that: The closed cover (14) is provided with a U-shaped handle (142) on the plate surface opposite to the buried column (11), and the U-shaped opening of the handle (142) faces the closed cover (14).

9. A soft soil foundation settlement monitoring device according to claim 1, characterized in that: The surfaces of the embedded column (11), the rotating cylinder (12), the fixed plate (13), the first gear (131), and the cavity wall of the rotating cavity (111) are all coated with a layer of anti-corrosion paint.

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