Multi-section civil engineering safety monitoring instrument embedding and fixing device

Abstract

The utility model discloses a multi-section civil engineering safety monitoring instrument embedding and fixing device, which relates to the field of civil engineering monitoring and comprises an embedding cylinder, one end of the embedding cylinder is plugged, the other end of the embedding cylinder is opened and is matched with a cylinder cover, an inner cavity is formed in the embedding cylinder, water seepage holes are formed in the outer circumferential wall of the embedding cylinder, and a sponge plate is attached to the inner wall of the inner cavity. In order to solve the problem that the burying depth of an osmometer is difficult to control during multi-section civil engineering construction at present, a gauze bag is filled with fine sand, the osmometer is buried, the gauze bag is connected with a lifting rope to be mounted in an inner cavity, and when and after the inner cavity is filled with coarse sand, the position of the gauze bag can be changed by pulling the lifting rope, so that the osmometer can be conveniently and quickly buried. The position of the osmometer is adjusted, the burying depth of the osmometer is controlled, and the lifting rope is locked through the locking piece, so that the position of the gauze bag is kept, it is guaranteed that the osmometer is located at the needed position, and the adjustment requirement of engineering is met.

Description

Technical Field

[0001] The utility model relates to the field of civil engineering monitoring, in particular to a device for burying and fixing a multi-section civil engineering safety monitoring instrument. Background Art

[0002] Civil engineering projects often involve multiple construction sections, such as tunnel construction, which requires safety monitoring. Typically, multiple monitoring instruments, such as multi-point displacement meters and piezometers, are buried in the construction tunnel to monitor the safety and quality of the project. A Chinese patent (publication number CN216198293U) discloses a piezometer installation and burial device for the bottom of an inverted arch in an urban mountain tunnel, comprising: a hollow large-diameter galvanized steel mesh frame and a hollow small-diameter galvanized steel mesh frame; the large-diameter galvanized steel mesh frame is provided with the small-diameter galvanized steel mesh frame; the small-diameter galvanized steel mesh frame is provided with a piezometer; the piezometer is connected to one end of a signal transmission cable, and the other end of the signal transmission cable is led out of the large-diameter galvanized steel mesh frame. The device can deform in coordination with the surrounding environment and, compared to highly rigid steel pipes, is more adaptable to the working environment, thereby improving measurement accuracy.

[0003] However, the piezometer is wrapped in fine sand and fixed in the small mesh frame, and the height of the small mesh frame when placed in the large mesh frame is difficult to control, so the burial depth of the piezometer cannot be controlled as needed and cannot be adjusted according to project needs. Utility Model Content

[0004] The purpose of the utility model is to address the defects of the existing technology and provide a multi-section civil engineering project safety monitoring instrument burying and fixing device, which uses fine sand to fill a gauze bag and bury a piezometer, and the gauze bag is connected to a hanging rope and installed in the inner cavity. When and after the inner cavity is filled with coarse sand, the position of the gauze bag can be changed by pulling the hanging rope, thereby adjusting the position of the piezometer and controlling the burial depth of the piezometer. The hanging rope is locked by a locking piece to maintain the position of the gauze bag, ensuring that the piezometer is in the required position and meeting the adjustment needs of the project.

[0005] In order to achieve the above objectives, the following technical solutions are adopted:

[0006] A multi-section civil engineering safety monitoring instrument embedding and fixing device, comprising:

[0007] The buried tube has one end sealed and the other end opened and fitted with a tube cover. An inner cavity is formed inside the buried tube. A water seepage hole is opened on the outer circumferential wall of the buried tube, and a sponge board is attached to the inner wall of the inner cavity.

[0008] A gauze bag is arranged in the inner cavity, the interior of the gauze bag is filled with fine sand, an osmometer is buried in the fine sand, and coarse sand is filled between the gauze bag and the inner wall of the inner cavity;

[0009] The adjusting mechanism includes a plurality of slings connected to the gauze bag. The slings pass through the tube cover and extend outside the inner cavity. A locking piece is installed at the position where the slings pass through the tube cover, and the locking piece clamps or releases the slings.

[0010] Furthermore, the open end of the burying tube is connected to the tube cover by a threaded connection, and the cover tube is provided with an adjustment hole for the suspension rope to pass through.

[0011] Furthermore, the cylinder cover extends radially to the outside of the buried cylinder to form a flange, and a plurality of bolt holes for fasteners to cooperate with are opened on the flange.

[0012] Furthermore, a filling hole is provided in the center of the cylinder cover, the inner cavity is connected to the outside through the filling hole, the filling hole is detachably equipped with a blocking cover, and the hanging rope is arranged on the cylinder cover outside the filling hole.

[0013] Furthermore, the piezometer is connected to a wire, which passes through the fine sand, the gauze bag, the coarse sand and the plug cover in sequence and then extends to the outside of the inner cavity.

[0014] Furthermore, the locking members are evenly distributed in the circumferential direction around the axis of the cylinder cover, and the hanging ropes and the locking members are arranged in a one-to-one correspondence.

[0015] Furthermore, the locking member includes a guide ring and a locking sleeve, a plurality of wedge-shaped clamps extend from one end of the guide ring, the sling rope passes through the guide ring and the locking sleeve, and the locking sleeve can be threadedly connected to the clamp to change the clamping effect of the clamp on the sling rope by adjusting the axial position of the locking sleeve and the clamp.

[0016] Furthermore, the guide ring is connected to a plurality of clamping plates which are sequentially spaced along the axial direction of the guide ring, the clamping plates together form a structure with a truncated cone profile, and the guide ring is connected to the cylinder cover.

[0017] Furthermore, the water seepage hole array is distributed on the outer circumferential wall of the buried cylinder, the aperture of the water seepage hole is larger than the aperture of the mesh hole on the gauze bag, and the particle size of the fine sand is smaller than that of the coarse sand.

[0018] Furthermore, the piezometer is arranged on the axis of the inner cavity of the buried tube.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model aims to solve the problem that it is difficult to control the burial depth of the piezometer during the construction of multi-section civil engineering projects. Fine sand is filled in a gauze bag and the piezometer is buried. The gauze bag is connected to a hanging rope and installed in the inner cavity. When and after the inner cavity is filled with coarse sand, the position of the gauze bag can be changed by pulling the hanging rope, thereby adjusting the position of the piezometer and controlling the burial depth of the piezometer. The hanging rope is locked by a locking piece to maintain the position of the gauze bag, ensuring that the piezometer is in the required position and meeting the adjustment needs of the project.

[0021] Fine sand can be filled into the buried tube through the filling hole, and the plugging cover can be installed to seal it after filling. Finally, the buried tube can be buried in the inner wall drilled hole of the project section and fixed with flanges and anchor bolts. The seepage hole is convenient for water seepage, and the sponge board is used to prevent the leakage of coarse sand, thereby monitoring the water pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of a device for embedding and fixing safety monitoring instruments for multi-section civil engineering projects in an embodiment of the present utility model.

[0023] Figure 2 This is a schematic diagram of the internal structure of a multi-section civil engineering safety monitoring instrument embedding and fixing device in an embodiment of the present utility model.

[0024] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0025] Figure 4 for Figure 2 A partial enlarged view of point B in the middle.

[0026] Explanation of the numbers (in the order of first appearance): 1. Buried tube; 2. Tube cover; 21. Flange; 22. Filling hole; 23. Blocking cover; 3. Gauze bag; 4. Piezometer; 5. Adjustment mechanism; 51. Guide ring; 52. Lifting rope; 53. Clamp; 54. Locking sleeve; 6. Observation plate; 7. Seepage hole; 8. Sponge board. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0028] In civil engineering projects, especially in complex projects with multiple sections, it is crucial to accurately monitor the pressure inside the soil or concrete. As a commonly used monitoring instrument, the burial position and depth of the piezometer 4 directly affect the accuracy of the monitoring data. However, in actual operation, how to ensure that the piezometer 4 can be accurately buried at a predetermined position and depth, while being conveniently adjusted, is a technical problem. Traditional burial methods cannot accurately control the burial depth of the piezometer 4, and once the burial is completed, it is difficult to adjust it. In addition, if the soil or concrete exerts excessive pressure on the piezometer 4 during the burial process, it may also cause damage to it. Based on this, the present embodiment provides a burial fixture for a multi-section civil engineering safety monitoring instrument, which can accurately control the burial depth of the piezometer 4 and is convenient to adjust.

[0029] like Figure 1 and Figure 2 As shown, the burying and fixing device of the multi-section civil engineering safety monitoring instrument mainly includes a burying tube 1, a gauze bag 3 and an adjustment mechanism 5.

[0030] The buried tube 1 is a cylindrical structure, sealed at one end and open at the other end, fitted with a tube cap 2. Material can be easily filled into the inner cavity through the open end. Seepage holes 7 are provided on the outer circumferential wall of the buried tube 1. These seepage holes 7 allow external moisture and soil pressure to penetrate into the inner cavity, thereby contacting the piezometer 4. A sponge sheet 8 is attached to the inner wall of the inner cavity to prevent leakage of materials such as coarse sand from the inner cavity.

[0031] A gauze bag 3 is placed within the inner cavity and filled with fine sand. A piezometer 4 is embedded within the fine sand, ensuring good contact between the piezometer 4 and the surrounding soil or concrete, thereby accurately measuring pressure. Coarse sand is filled between the gauze bag 3 and the inner wall of the inner cavity, providing support and stability. The coarse sand also helps maintain the position of the gauze bag 3 before and after adjustment.

[0032] The adjustment mechanism 5 includes multiple hanging ropes 52 connected to the gauze bag 3. One end of the hanging rope 52 is connected to the gauze bag 3, and the other end passes through the cylinder cover 2 and extends outside the inner cavity, allowing the operator to pull and adjust the gauze bag 3 from the outside. The location where the hanging rope 52 passes through the cylinder cover 2 is installed with a locking member. The locking member can clamp or release the hanging rope 52. When the hanging rope 52 is clamped, the hanging rope 52 cannot be pulled. Therefore, the position of the gauze bag 3 can be constrained by the multiple hanging ropes 52, reducing the deviation of the gauze bag 3. When the locking member releases the hanging rope 52, the hanging rope 52 can receive external force and pull the gauze bag 3, thereby adjusting the position of the gauze bag 3.

[0033] By pulling and locking the sling 52, the operator can precisely control the burial depth of the gauze bag 3 (and the piezometer 4 therein), meeting the precise monitoring depth requirements of the project. The design of the locking member allows the operator to easily clamp or release the sling 52, thereby adjusting the position of the gauze bag 3 at any time. This greatly simplifies the burial and adjustment process of the piezometer 4. The design of the sponge board 8 and the coarse sand helps absorb and disperse moisture and soil pressure, thereby protecting the piezometer 4 from damage and protecting the gauze bag 3 from external impact.

[0034] By precisely controlling the buried position and depth of the piezometer 4 and protecting it from damage, the accuracy of the monitoring data can be significantly improved.

[0035] At work, if Figure 1 and Figure 2As shown, the gauze bag 3 wraps the piezometer 4 and is filled with fine sand. Then the gauze bag 3 and the piezometer 4 are placed in the burying tube 1. The tube cover 2 is threadedly connected to the burying tube 1. The height of the gauze bag 3 in the burying tube 1 is adjusted by the adjustment mechanism 5. Finally, after filling the burying tube 1 with coarse sand, the burying tube 1 is buried in the borehole to control the burial depth of the piezometer 4 and meet the monitoring needs.

[0036] like Figure 2 As shown, a threaded connection is adopted between the open end of the buried tube 1 and the tube cover 2. An internal thread is arranged inside the open end of the buried tube 1 to form a threaded hole. An annular protrusion is formed at one axial end of the tube cover 2. An external thread is arranged on the annular protrusion. The threaded connection between the buried tube 1 and the barrel cover is realized by the cooperation of the external thread and the internal thread. This connection method is simple and reliable, easy to disassemble and install, and convenient for subsequent maintenance and replacement.

[0037] The barrel cover 2 extends radially to the outside of the buried barrel 1 to form a flange 21. The flange 21 has multiple bolt holes for fasteners to securely fasten the barrel cover 2 to the buried barrel 1. The fasteners can be expansion bolts, rivets, bolts, etc., which increase the stability of the barrel cover 2 and prevent it from loosening or falling off during the construction process.

[0038] The tube cover 2 has a filling hole 22 at its center. Its diameter is smaller than the opening of the buried tube 1 and is used to fill the inner cavity with coarse and fine sand. The filling hole 22 is sealed with a removable plug 23, ensuring the inner cavity is sealed. A hanging rope 52 is placed on the tube cover 2 outside the filling hole 22. When the plug 23 is opened and coarse sand is filled into the buried tube 1 through the filling hole 22, the hanging rope 52 can still maintain the position of the internal gauze bag 3.

[0039] Specifically, such as Figure 1 and Figure 2 As shown, the edge of the tube cover 2 is integrally formed with a flange 21. The bolt holes provided on the flange 21 are anchor bolt holes. A filling hole 22 is provided in the middle of the tube cover 2. The filling hole 22 can also be provided with an internal thread to install a plug cover 23 through a threaded connection. The piezometer 4 is connected to a wire, which passes through the fine sand, gauze bag 3, coarse sand and plug cover 23 in sequence and then extends to the outside of the inner cavity. The wire of the piezometer 4 slides through the plug cover 23. The buried tube 1 is provided with multiple seepage holes 7. The side wall of the buried tube 1 is fixedly sleeved with an observation plate 6 made of a transparent material. The inner wall of the buried tube 1 is fixedly fitted with a sponge plate 8.

[0040] Through the above scheme, the flange 21 is conveniently fixed after the buried tube 1 is buried in the drilled hole by the anchor bolts, the filling hole 22 is convenient for filling coarse sand into the buried tube 1 after the height of the gauze bag 3 is adjusted, and the plugging cover 23 is installed and sealed after filling. The seepage hole 7 is convenient for water seepage, the sponge board 8 is used to prevent coarse sand from leaking, and the observation board 6 uses a transparent PVC board to facilitate observation when adjusting the depth of the gauze bag 3.

[0041] The wire connected to the piezometer 4 passes through the fine sand, gauze bag 3, coarse sand and plugging cover 23 in sequence and then extends to the outside of the inner cavity, ensuring the safe and stable transmission of the wire and avoiding damage to the wire during the burial process.

[0042] like Figure 2 and Figure 4 As shown, the locking members are evenly distributed around the axis of the cylinder cover 2 and arranged one-to-one with the hanging ropes 52, ensuring uniform tension on the gauze bag 3 and avoiding deflection or deformation caused by uneven tension.

[0043] like Figure 4 As shown, the locking member includes a guide ring 51 and a locking sleeve 54. A plurality of wedge-shaped clamping plates 53 extend from one end of the guide ring 51, and the sling 52 passes through the guide ring 51 and the locking sleeve 54. The locking sleeve 54 is threadably connected to the clamping plates 53. By adjusting the axial position of the locking sleeve 54, the clamping effect of the clamping plates 53 on the sling 52 can be changed, thereby achieving locking and release of the sling 52.

[0044] Specifically, the adjustment mechanism 5 includes a guide ring 51, and multiple guide rings 51 are fixedly installed on the top of the cylinder cover 2. A hanging rope 52 is sleeved inside the guide ring 51. The bottom of the hanging rope 52 passes through the cylinder cover 2 and is fixedly connected to the outer wall of the gauze bag 3. A plurality of splints 53 are fixedly installed on the top of the guide ring 51, and a locking sleeve 54 is slidably sleeved on the top of the hanging rope 52. The locking sleeve 54 is threadedly sleeved on the outer wall of the splint 53. Three guide rings 51 are evenly provided along the circumferential direction of the cylinder cover 2, and multiple splints 53 are evenly distributed along the circumferential direction of the guide ring 51. The outer wall of the splint 53 and the inner wall of the locking sleeve 54 are both conical inclined structures with a small upper part and a large lower part.

[0045] The splints 53 together form a truncated cone-shaped structure, which increases the clamping force of the splints 53. When the locking sleeve 54 gradually approaches the guide ring 51, the splints 53 are pushed to squeeze the sling rope 52, thereby gradually locking the position of the sling rope 52 and the guide ring 51; conversely, the splints 53 are gradually brought into contact with the sling rope 52 to clamp it, thereby improving the stability and reliability of the locking member.

[0046] An array of seepage holes 7 is distributed along the outer circumference of the buried tube 1, ensuring uniform penetration of water and soil pressure. The diameter of the seepage holes 7 is larger than the mesh of the gauze bag 3, preventing the fine sand and piezometer 4 from being squeezed out. The smaller particle size of the fine sand than the coarse sand helps form a stable support structure while ensuring good contact between the piezometer 4 and the surrounding medium.

[0047] The piezometer 4 is arranged on the axis of the inner cavity of the buried tube 1, which ensures the stability and accuracy of the piezometer 4 during the burial process and avoids measurement errors caused by position offset.

[0048] After the gauze bag 3 wraps the piezometer 4 and is filled with fine sand, the opening of the gauze bag 3 is tied tightly with a rope, the gauze bag 3 is placed in the burying tube 1, the tube cover 2 is threadedly connected to the burying tube 1, and the locking sleeve 54 is rotated to disengage the splint 53. The splint 53 remains in a relaxed state and the hanging rope 52 is loosened, so that the hanging rope 52 can be pulled down or up to adjust the height of the gauze bag 3. After adjustment, the locking sleeve 54 is tightened on the splint 53, and the splint 53 is squeezed by the inclined surface of the truncated cone so that the splint 53 clamps the hanging rope 52 to achieve the purpose of fixation, which is convenient for controlling the burial depth of the piezometer 4.

[0049] The threaded connection, flange 21 design, and optimized locking mechanism ensure a secure connection between the embedding tube 1 and tube cover 2, as well as precise position control of the gauze bag 3 and piezometer 4. The combination of flange 21, guide ring 51, and locking sleeve 54 enhances the overall stability of the embedding device and prevents loosening or deformation due to external forces.

[0050] The piezometer 4 is positioned on the inner axis of the cavity and, supported by fine and coarse sand, maintains good contact with the surrounding medium, ensuring the accuracy and reliability of the measured data. The threaded connection and removable plug 23 facilitate installation, removal, and maintenance of the embedded device. The optimized seepage holes 7 and particle size control allow the embedded device to adapt to the needs of different soils and engineering environments, enhancing its versatility and applicability.

[0051] The above detailed description of the specific embodiments of the utility model is intended to be illustrative only, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions made to the utility model are also within the scope of the utility model. Therefore, equivalent changes, modifications, and improvements made without departing from the spirit and scope of the principles of the utility model should be included within the scope of the utility model.

Claims

1. A multi-section civil engineering safety monitoring instrument embedding and fixing device, characterized in that: include: The buried tube has one end sealed and the other end opened and fitted with a tube cover. An inner cavity is formed inside the buried tube. A water seepage hole is opened on the outer circumferential wall of the buried tube, and a sponge board is attached to the inner wall of the inner cavity. A gauze bag is arranged in the inner cavity, the interior of the gauze bag is filled with fine sand, an osmometer is buried in the fine sand, and coarse sand is filled between the gauze bag and the inner wall of the inner cavity; The adjusting mechanism includes a plurality of slings connected to the gauze bag. The slings pass through the tube cover and extend outside the inner cavity. A locking piece is installed at the position where the slings pass through the tube cover, and the locking piece clamps or releases the slings.

2. The multi-section civil engineering safety monitoring instrument embedding and fixing device according to claim 1, characterized in that: The open end of the burying tube is connected to the tube cover through a thread, and the cover tube is provided with an adjustment hole for the suspension rope to pass through.

3. The multi-section civil engineering safety monitoring instrument embedding and fixing device according to claim 1 or 2, characterized in that: The cylinder cover extends radially to the outside of the buried cylinder to form a flange, and a plurality of bolt holes for fasteners to cooperate with are opened on the flange.

4. The multi-section civil engineering safety monitoring instrument embedding and fixing device according to claim 3, characterized in that: A filling hole is provided in the center of the cylinder cover, the inner cavity is connected to the outside through the filling hole, the filling hole is detachably equipped with a blocking cover, and the hanging rope is arranged on the cylinder cover outside the filling hole.

5. The multi-section civil engineering safety monitoring instrument embedding and fixing device according to claim 4, characterized in that: The osmometer is connected with a wire, which passes through the fine sand, the gauze bag, the coarse sand and the plug cover in sequence and then extends to the outside of the inner cavity.

6. The multi-section civil engineering safety monitoring instrument embedding and fixing device according to claim 1, characterized in that: The locking members are evenly distributed in the circumferential direction around the axis of the cylinder cover, and the hanging ropes and the locking members are arranged in a one-to-one correspondence.

7. The multi-section civil engineering safety monitoring instrument embedding and fixing device according to claim 1 or 6, characterized in that: The locking member includes a guide ring and a locking sleeve. Multiple wedge-shaped clamps extend from one end of the guide ring. The sling rope passes through the guide ring and the locking sleeve. The locking sleeve can be threadedly connected to the clamp to change the clamping effect of the clamp on the sling rope by adjusting the axial position of the locking sleeve and the clamp.

8. The multi-section civil engineering safety monitoring instrument embedding and fixing device according to claim 7, characterized in that: The guide ring is connected to a plurality of clamping plates which are sequentially spaced along the axial direction of the guide ring. The clamping plates together form a structure with a truncated cone profile. The guide ring is connected to the cylinder cover.

9. The multi-section civil engineering safety monitoring instrument embedding and fixing device according to claim 1, characterized in that: The water seepage hole array is distributed on the outer circumferential wall of the buried cylinder. The aperture of the water seepage hole is larger than the aperture of the mesh hole on the gauze bag. The particle size of the fine sand is smaller than that of the coarse sand.

10. The multi-section civil engineering safety monitoring instrument embedding and fixing device according to claim 1, characterized in that: The piezometer is arranged on the axis of the inner cavity of the buried tube.

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