Mechanical piezometer tube for monitoring ground settlement
By setting up a triple filter structure of outer yarn mesh tube, outer filter water pipe, quartz sand and inner yarn mesh tube in the mechanical pressure measuring tube, the problem of fine particles blocking the pore water pressure gauge in ground sink monitoring is solved, and the accuracy of monitoring data is achieved.
Patent Information
- Application Number
- CN202422714129.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-07
AI Technical Summary
In the prior art, during the ground sink monitoring process, fine particles in the tissue water will cause blockage of the permeable device of the pore water pressure gauge, resulting in inaccurate monitoring data.
A triple filter structure is adopted, including outer yarn mesh tube, outer yarn water tube, quartz sand and inner yarn mesh tube, combined with sedimentation tube, to achieve multi-layer filtration of the target layer in the well to prevent fine particles from entering the pore water pressure gauge.
It effectively avoids the blockage of the pore water pressure gauge by fine particles and ensures the accuracy of monitoring data.
Smart Images
Figure CN223243820U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ground subsidence monitoring, in particular to a mechanical pressure measuring tube for ground subsidence monitoring. Background Art
[0002] Subsidence water pressure monitoring refers to the monitoring of the seepage water pressure inside and on the foundations of structures such as geotechnical engineering and concrete buildings. When in use, a mechanical pressure measuring tube needs to be lowered into the well to monitor the target layer, and the seepage water pressure of the target layer is monitored in conjunction with a pore water pressure meter.
[0003] However, in the actual monitoring process, fine particles in the tissue water will cause blockage of the permeable device of the pore water pressure meter, resulting in inaccurate monitoring data. Utility Model Content
[0004] To this end, the utility model provides a mechanical pressure measuring tube for ground subsidence monitoring to solve the above-mentioned problems in the prior art.
[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:
[0006] According to the first aspect of the present utility model, a mechanical pressure measuring tube for ground sink monitoring includes an upper joint and a sedimentation tube, the bottom end of the upper joint is threadedly connected to an inner water filter tube, the bottom end of the upper joint is provided with an upper sealing device, the top surface of the sedimentation tube is provided with a lower sealing device, a gasket is provided inside the sedimentation tube, the gasket is fixedly connected to the inner wall of the sedimentation tube, the inner water filter tube passes through the gasket, the bottom end of the inner water filter tube is threadedly connected to a lock nut, the top surface of the lock nut is attached to the bottom surface of the gasket, the outer side of the inner water filter tube is wrapped with an inner gauze mesh tube, the outer side of the inner gauze mesh tube is wrapped with an outer water filter tube, the outer side of the outer water filter tube is wrapped with an outer gauze mesh tube, and the cavity between the outer water filter tube and the inner gauze mesh tube is filled with quartz sand.
[0007] Furthermore, the upper sealing device includes an upper pressure cover, the bottom end of the upper pressure cover is fitted with a first rubber pad, the top surface of the upper pressure cover is fitted with a second rubber pad, the top surface of the second rubber pad is fitted with a pad, and the bottom end of the upper joint is tightly squeezed on the top surface of the pad.
[0008] Furthermore, the lower sealing device includes a gland joint, which is threadedly connected to the top surface of the sedimentation tube, the top surface of the gland joint is fitted with a third rubber pad, the top surface of the third rubber pad is fitted with a lower gland, and the top surface of the lower gland is fitted with a fourth rubber pad. The first rubber pad, the second rubber pad, the third rubber pad and the fourth rubber pad are all annular rubber pad gaskets.
[0009] Furthermore, a supporting plate is fixedly connected to each other's sides of the upper and lower glands, and the supporting plate extends into the cavity between the outer water filter tube and the inner mesh tube.
[0010] Furthermore, the top surfaces of the inner mesh tube, outer water filter tube and outer mesh tube are attached to the bottom surface of the first rubber pad, and the bottom surfaces of the inner mesh tube, outer water filter tube and outer mesh tube are attached to the top surface of the fourth rubber pad.
[0011] Furthermore, a heavy hammer is installed on the bottom bolt of the sedimentation pipe, and a centralizer is welded on the periphery of the sedimentation pipe.
[0012] The utility model has the following advantages: an outer gauze mesh tube, an outer water filter tube, quartz sand, an inner gauze mesh tube and an inner water filter tube are sequentially arranged from the outside to the inside; when in use, the outer gauze mesh tube first filters particles in the target layer in the well, the filtered water passes through the outer water filter tube and is further filtered by the quartz sand, and finally passes through the final filtration of the inner gauze mesh tube, and the filtered water smoothly enters the interior of the mechanical pressure measuring tube; the use of triple filtration and sedimentation tube can prevent fine particles in the tissue water from clogging the water permeable device of the pore water pressure gauge, thereby avoiding inaccurate monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a cross-sectional view of the mechanical pressure measuring tube for ground subsidence monitoring provided by the utility model.
[0014] Figure 2 The utility model provides a mechanical pressure measuring tube for ground subsidence monitoring Figure 1 A magnified view of center.
[0015] Figure 3 The utility model provides a mechanical pressure measuring tube for ground subsidence monitoring. Figure 1 Magnified view of B.
[0016] Figure 4 This is a three-dimensional diagram of the mechanical pressure measuring tube for ground subsidence monitoring provided by the utility model.
[0017] In the figure: 1. upper joint; 2. sedimentation tube; 3. inner water filter tube; 40. upper sealing device; 41. upper pressure cover; 42. first rubber pad; 43. second rubber pad; 44. gasket; 50. lower sealing device; 51. pressure cover joint; 52. third rubber pad; 53. lower pressure cover; 54. fourth rubber pad; 6. gasket; 7. lock nut; 8. inner mesh tube; 9. outer water filter tube; 10. outer mesh tube; 11. quartz sand; 12. support plate; 13. heavy hammer. DETAILED DESCRIPTION
[0018] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.
[0019] Example 1
[0020] like Figures 1 to 4 As shown, the mechanical pressure measuring tube for ground sinking monitoring in the embodiment of the first aspect of the present utility model comprises an upper joint 1 and a sedimentation tube 2, the bottom end of the upper joint 1 is threadedly connected to an inner water filter tube 3, the bottom end of the upper joint 1 is provided with an upper sealing device 40, the top surface of the sedimentation tube 2 is provided with a lower sealing device 50, a gasket 6 is provided inside the sedimentation tube 2, the gasket 6 is fixedly connected to the inner wall of the sedimentation tube 2, the inner water filter tube 3 passes through the gasket 6, the bottom end of the inner water filter tube 3 is threadedly connected with a lock nut 7, the top surface of the lock nut 7 is attached to the bottom surface of the gasket 6, the outer side of the inner water filter tube 3 is wrapped with an inner gauze mesh tube 8, the outer side of the inner gauze mesh tube 8 is wrapped with an outer water filter tube 9, the outer side of the outer water filter tube 9 is wrapped with an outer gauze mesh tube 10, and the cavity between the outer water filter tube 9 and the inner gauze mesh tube 8 is filled with quartz sand 11;
[0021] In the above embodiment, it should be noted that the fine particles that cannot be filtered can settle to the bottom of the sedimentation tube 2 due to free sedimentation;
[0022] The technical effect achieved by the above embodiment is: the combination of triple filtration and sedimentation tube 2 can prevent fine particles in the tissue water from clogging the water permeability device of the pore water pressure meter, thereby avoiding inaccurate monitoring data.
[0023] Example 2
[0024] like Figures 1 to 4 As shown, the mechanical pressure measuring tube for ground subsidence monitoring includes all the contents of Example 1. In addition, the upper sealing device 40 includes an upper pressure cover 41, the bottom end of the upper pressure cover 41 is affixed with a first rubber pad 42, the top surface of the upper pressure cover 41 is affixed with a second rubber pad 43, the top surface of the second rubber pad 43 is affixed with a pad 44, the bottom end of the upper joint 1 is tightly squeezed on the top surface of the pad 44, the lower sealing device 50 includes a pressure cover joint 51, the pressure cover joint 51 is threadedly connected to the top surface of the sedimentation pipe 2, the top surface of the pressure cover joint 51 is affixed with a third rubber pad 52, the top surface of the third rubber pad 52 is affixed with a lower pressure cover 53, the top surface of the lower pressure cover 53 is affixed with a fourth rubber pad 54, the top surfaces of the inner mesh tube 8, the outer water filter tube 9, and the outer mesh tube 10 are affixed to the bottom surface of the first rubber pad 42, and the bottom surfaces of the inner mesh tube 8, the outer water filter tube 9, and the outer mesh tube 10 are affixed to the top surface of the fourth rubber pad 54;
[0025] In the above embodiment, it should be noted that the filtration accuracy of the outer yarn mesh tube 10, the quartz sand 11, and the inner yarn mesh tube 8 increases in sequence;
[0026] The technical effect achieved by the above embodiment is that the inner water filter tube 3, the inner mesh tube 8, the outer water filter tube 9 and the outer mesh tube 10 can be sealed and fixedly installed, thereby achieving a good filtering effect.
[0027] Example 3
[0028] like Figures 1 to 4 As shown, the mechanical pressure measuring tube for ground subsidence monitoring includes all the contents of Example 2. In addition, the upper gland 41 and the lower gland 53 are fixedly connected to the side close to each other with a supporting plate 12, and the supporting plate 12 extends into the cavity between the outer water filter tube 9 and the inner mesh tube 8. The first rubber pad 42, the second rubber pad 43, the third rubber pad 52 and the fourth rubber pad 54 are all annular rubber pads;
[0029] In the above embodiment, it should be noted that the support plate 12 is an annular structure.
[0030] The technical effect achieved by the above embodiment is that a gap can be stably maintained between the inner mesh tube 8 and the outer water filter tube 9, and the gap can be used to fill quartz sand 11 to play a stabilizing role.
[0031] Example 4
[0032] like Figures 1 to 4 As shown, the mechanical pressure measuring tube for ground subsidence monitoring includes all the contents of Example 3. In addition, the bottom bolt of the sedimentation tube 2 is installed with a weight 13, and the periphery of the sedimentation tube 2 is welded with a centralizer;
[0033] In the above embodiment, it should be noted that the centralizer is an existing product, which is an annular structure, is set on the sedimentation pipe 2, and is welded thereto;
[0034] The technical effect achieved by the above embodiment is: setting a heavy hammer 13 can increase the overall mass of the mechanical pressure measuring tube, so that the mechanical pressure measuring tube is stably located in the target layer to be monitored in the well, and a set of stabilizers are welded on the periphery of the sedimentation tube 2, which can ensure that the mechanical pressure measuring tube is always lowered vertically along the well wall during the process of being lowered to the target layer in the well.
[0035] Working principle: When in use, the outer mesh tube 10 first filters the particles in the target layer in the well, the filtered water passes through the outer water filter tube 9 and is further filtered by the quartz sand 11, and finally passes through the inner mesh tube 8 for final filtration, so that the filtered water enters the inner water filter tube 3, and then enters the mechanical pressure measuring tube through the inner water filter tube 3. After entering the mechanical pressure measuring tube, the fine particles that cannot be filtered can settle to the bottom of the sedimentation tube 2 due to free sedimentation.
Claims
1. A mechanical pressure measuring tube for ground subsidence monitoring, characterized in that: The invention comprises an upper joint (1) and a sedimentation tube (2), wherein the bottom end of the upper joint (1) is threadedly connected to an inner water filter tube (3), an upper sealing device (40) is provided at the bottom end of the upper joint (1), and a lower sealing device (50) is provided on the top surface of the sedimentation tube (2), a gasket (6) is provided inside the sedimentation tube (2), and the gasket (6) is fixedly connected to the inner wall of the sedimentation tube (2), and the inner water filter tube (3) passes through the gasket (6). The bottom end of the water filter pipe (3) is threadedly connected to a lock nut (7), the top surface of the lock nut (7) is attached to the bottom surface of the gasket (6), the outer side of the inner water filter pipe (3) is wrapped with an inner gauze mesh tube (8), the outer side of the inner gauze mesh tube (8) is wrapped with an outer water filter pipe (9), the outer side of the outer water filter pipe (9) is wrapped with an outer gauze mesh tube (10), and the cavity between the outer water filter pipe (9) and the inner gauze mesh tube (8) is filled with quartz sand (11).
2. The mechanical pressure measuring tube for ground subsidence monitoring according to claim 1, characterized in that: The upper sealing device (40) includes an upper pressure cover (41), the bottom end of the upper pressure cover (41) is fitted with a first rubber pad (42), the top surface of the upper pressure cover (41) is fitted with a second rubber pad (43), the top surface of the second rubber pad (43) is fitted with a pad (44), and the bottom end of the upper joint (1) is tightly pressed against the top surface of the pad (44).
3. The mechanical pressure measuring tube for ground subsidence monitoring according to claim 2, characterized in that: The lower sealing device (50) comprises a gland joint (51), the gland joint (51) is threadedly connected to the top surface of the sedimentation tube (2), the top surface of the gland joint (51) is affixed with a third rubber pad (52), the top surface of the third rubber pad (52) is affixed with a lower gland (53), the top surface of the lower gland (53) is affixed with a fourth rubber pad (54), and the first rubber pad (42), the second rubber pad (43), the third rubber pad (52) and the fourth rubber pad (54) are all annular rubber pads.
4. The mechanical pressure measuring tube for ground subsidence monitoring according to claim 3, characterized in that: The upper pressure cover (41) and the lower pressure cover (53) are fixedly connected to a support plate (12) on one side close to each other, and the support plate (12) extends into the cavity between the outer water filter tube (9) and the inner mesh tube (8).
5. The mechanical pressure measuring tube for ground subsidence monitoring according to claim 3, characterized in that: The top surfaces of the inner mesh tube (8), the outer water filter tube (9), and the outer mesh tube (10) are attached to the bottom surface of the first rubber pad (42), and the bottom surfaces of the inner mesh tube (8), the outer water filter tube (9), and the outer mesh tube (10) are attached to the top surface of the fourth rubber pad (54).
6. The mechanical pressure measuring tube for ground subsidence monitoring according to claim 1, characterized in that: A heavy hammer (13) is installed on the bottom bolt of the sedimentation pipe (2), and a centralizer is welded to the periphery of the sedimentation pipe (2).