Underground pipeline deformation monitoring device
By designing underground pipeline deformation monitoring devices with fixed rings, connecting seats, vertical sleeves, measuring rods and probes, the problems of high monitoring costs and insufficient accuracy in the existing technology are solved, and low-cost and high-precision underground are achieved Pipeline deformation monitoring.
Patent Information
- Application Number
- CN202421074782.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The existing technology is difficult to effectively monitor the deformation of underground pipelines. The optical fiber sensing technology is costly and is not suitable for the construction environment. The accuracy and authenticity of the level observation technology are insufficient, which cannot meet the needs of regular comprehensive monitoring.
An underground pipeline deformation monitoring device including a fixed ring, a connecting seat, a vertical sleeve, a measuring rod and a probe is designed. It is firmly installed on the pipeline through a fixed ring, and the measuring rod and a probe are used for settlement measurement, and the vertical An anti-extrusion fine sand layer is provided between the sleeves to improve support strength and accuracy.
It realizes the deformation monitoring of underground pipelines with simple structure and low cost, ensures the accuracy and authenticity of monitoring, and can accurately measure the settlement and horizontal displacement of pipelines, which is suitable for humid and corrosive environments.
Smart Images
Figure CN222231587U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underground pipeline monitoring, in particular to an underground pipeline deformation monitoring device. Background Art
[0002] Underground pipelines are an indispensable part of urban infrastructure construction. In recent years, with the continuous growth in the scale and speed of urban underground space construction in my country, various pipelines buried underground have brought potential safety hazards. In addition, some underground pipelines are very old. During long-term use, they are affected by atmospheric precipitation, construction disturbances, groundwater level changes, etc., and the soil around the pipelines will loosen, causing uneven settlement of the pipelines themselves, or even damage.
[0003] In order to ensure the smooth operation of underground pipelines, it is necessary to regularly monitor the settlement of underground pipelines. The commonly used monitoring methods are fiber optic sensing technology and leveling observation technology. Among them, although fiber optic sensing technology can realize intelligent monitoring, the monitoring cost is generally high. In addition, the optical fiber itself is fragile and not suitable for rough construction environments. At the same time, the buried locations of underground pipelines are mostly humid and easily corrosive environments. Therefore, the burial of fiber optic sensors requires extremely high anti-corrosion process requirements; and although the leveling observation technology has high measurement accuracy, it usually observes the settlement monitoring points buried above the pipeline, which is equivalent to using surface settlement monitoring data to infer the deformation of underground pipelines. The authenticity of the conclusion still needs to be improved. Therefore, there is an urgent need for a device that can be used to regularly and comprehensively monitor the deformation of underground pipelines. Summary of the invention
[0004] The utility model aims to provide an underground pipeline deformation monitoring device in view of the defects of the prior art.
[0005] In order to achieve the above purpose, the utility model can adopt the following technical solutions:
[0006] The underground pipeline deformation monitoring device described in the utility model includes a fixing ring fixed on the pipeline, a connecting seat is arranged at the center of the top wall of the fixing ring, a vertical sleeve is adapted to be inserted on the connecting seat, a sealing cap is buckled at the upper end of the vertical sleeve, a measuring rod is passed through the vertical sleeve along the axis, the lower end of the measuring rod is screwed and fixedly connected to the connecting hole opened at the center of the top wall of the connecting seat, a measuring head is screwed at the upper end of the measuring rod, and an anti-extrusion fine sand layer is arranged in the annular cavity between the measuring rod and the vertical sleeve.
[0007] Preferably, the fixing ring is formed by buckling an upper semicircular ring piece and a lower semicircular ring piece, and connecting bolts are provided at the buckling points of the upper semicircular ring piece and the lower semicircular ring piece, so as to facilitate respectively buckling the upper semicircular ring piece and the lower semicircular ring piece on the upper and lower sides of the pipeline, and fixing the upper semicircular ring piece and the lower semicircular ring piece together by the connecting bolts, thereby easily forming a fixing ring fixed to the pipeline, facilitating the installation of the fixing ring.
[0008] Furthermore, the connecting seat is a cylindrical seat body, and the vertical sleeve is a cylindrical barrel body whose inner diameter matches the diameter of the connecting seat; at this time, a plurality of vertical positioning grooves are evenly distributed along the circumference on the outer wall of the connecting seat, and vertical positioning convex strips are evenly distributed along the circumference on the lower end of the inner wall of the vertical sleeve, which are adapted and plugged in one by one with the vertical positioning grooves. When the lower end of the vertical sleeve is adapted and plugged into the connecting seat, the corresponding plugging of the vertical positioning grooves and the vertical positioning convex strips can ensure that the vertical sleeve is firmly plugged into the connecting seat, thereby preventing the vertical sleeve from rotating.
[0009] Furthermore, the vertical sleeve is composed of multiple sections connected end to end, and two adjacent sections of the vertical sleeve are connected as a whole through an internal threaded sleeve joint. It can not only easily adjust the overall height of the vertical sleeve according to the actual burial depth of the pipeline, but also utilize the multi-section nature of the vertical sleeve to enhance its supporting strength.
[0010] Furthermore, the probe is composed of an end cover screwed to the upper end of the measuring rod, and a ball head connected to the center of the top wall of the end cover. A cross-shaped marking groove is provided at the center of the top wall of the ball head to facilitate rapid alignment of the ball head center during later deformation monitoring.
[0011] The utility model has the advantages of simple structure, low cost and easy recycling. The ring is firmly fixed on the pipeline through a fixed ring, so that it can sink synchronously with the pipeline, so that the connecting seat and the measuring rod installed on the fixed ring can sink together, and then the probe at the upper end of the measuring rod can be used to accurately measure the settlement height of the pipeline; in addition, the vertical sleeve of the cylindrical structure can also weaken the extrusion force on its outer surface, and combined with the anti-extrusion fine sand layer set between the measuring rod and the vertical sleeve, it can greatly improve the support strength of the vertical sleeve, ensure good protection for the inner measuring rod, avoid the vertical sleeve from being squeezed and deformed by the surrounding soil layer or tilting, and improve the accuracy and authenticity of deformation monitoring. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the utility model.
[0013] Figure 2 yes Figure 1 Axial exploded view (anti-extrusion fine sand layer is hidden).
[0014] Figure 3 It is a schematic diagram of the pipeline settlement monitoring operation of the utility model.
[0015] Figure 4 It is a schematic diagram of the pipeline horizontal displacement monitoring operation of the utility model (top view). DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0018] like Figure 1 , 2 As shown, the underground pipeline deformation monitoring device described in the utility model includes a fixing ring 1 fixed on the pipeline 100, a connecting seat 2 is arranged at the center of the top wall of the fixing ring 1, a vertical sleeve 3 is adapted to be inserted on the connecting seat 2, a sealing cap 4 is buckled at the upper end of the vertical sleeve 3, a measuring rod 5 is passed through the vertical sleeve 3 along the axis, the lower end of the measuring rod 5 is screwed and fixedly connected to a connecting hole 6 opened in the center of the top wall of the connecting seat 2, a measuring head 7 is screwed on the upper end of the measuring rod 5, and an anti-extrusion fine sand layer 8 is arranged in the annular cavity between the measuring rod 5 and the vertical sleeve 3.
[0019] The fixing ring 1 is formed by buckling an upper semicircular ring piece 1.1 which is adapted to fit the upper side of the outer wall of the pipeline 100, and a lower semicircular ring piece 1.2 which is adapted to fit the lower side of the outer wall of the pipeline 100, and a connecting bolt 9 is arranged at the buckling position of the upper semicircular ring piece 1.1 and the lower semicircular ring piece 1.2, and the upper semicircular ring piece 1.1 and the lower semicircular ring piece 1.2 are connected as a whole by the connecting bolt 9; specifically, the upper semicircular ring piece 1.1 and the lower semicircular ring piece 1.2 can be buckled at the buckling position of the upper semicircular ring piece 1.1 and the lower semicircular ring piece 1.2. The flat plates 1.3 are turned outward to form mutually fitting plates 1.3. At this time, threaded connection holes 1.4 matching the connecting bolts 9 are opened on the fitting plates 1.3, so that the upper semicircular ring piece 1.1 and the lower semicircular ring piece 1.2 are fixedly connected as a whole through the connecting bolts 9 passing through the threaded connection holes 1.4, and the fixing ring 1 fixed on the pipeline 100 is easily formed, which facilitates the installation of the fixing ring 1 and ensures that the fixing ring 1 can be synchronously settled with the pipeline 100.
[0020] At this time, the connecting seat 2 is a cylindrical seat body welded to the center of the upper surface of the upper semicircular ring piece 1.1, and the vertical sleeve 3 is a cylindrical barrel body whose inner diameter matches the diameter of the connecting seat 2, so that the vertical sleeve 3 can be firmly inserted into the connecting seat 2 by direct plug-in, and when the vertical sleeve 3 is buried in the ground, the cylindrical structure of the vertical sleeve 3 can also weaken the extrusion force on its outer surface.
[0021] Furthermore, in order to prevent the vertical sleeve 3 inserted on the connecting seat 2 from rotating, four vertical positioning grooves 10 can be evenly distributed along the circumference on the outer wall of the connecting seat 2, and four vertical positioning ridges 11 can be evenly distributed along the circumference on the lower end of the inner wall of the vertical sleeve 3, which are adapted and plugged into the vertical positioning grooves 10 one by one. Therefore, when the lower end of the vertical sleeve 3 is adapted and inserted into the connecting seat 2, the vertical positioning grooves 10 and the vertical positioning ridges 11 can be correspondingly plugged into each other to ensure that the vertical sleeve 3 is firmly inserted into the connecting seat 2, thereby preventing the vertical sleeve 3 from rotating.
[0022] Furthermore, the vertical sleeve 3 is a plurality of sections connected end to end in sequence, and two adjacent sections of the vertical sleeve 3 are connected as a whole through an internal threaded sleeve joint 12 (i.e., an external thread matching the internal thread of the internal threaded sleeve joint 12 is machined at the end of the outer wall of the vertical sleeve 3), so that the overall height of the vertical sleeve 3 can be adjusted according to the actual burial depth of the pipeline 100, and the multi-section nature of the vertical sleeve 3 can be used to improve its overall supporting strength; at this time, only a vertical positioning convex strip 11 is provided on the inner wall of the lowermost section of the vertical sleeve 3 to achieve a secure plug-in connection between the vertical sleeve 3 as a whole and the connecting seat 2 after connection.
[0023] Furthermore, the probe 7 is composed of an end cover 7.1 screwed to the upper end of the measuring rod 5, and a ball head 7.2 connected to the center of the top wall of the end cover 7.1. A cross-shaped marking groove 13 is provided at the center of the top wall of the ball head 7.2 to facilitate rapid alignment above the center of the ball head 7.2 during later deformation monitoring.
[0024] When in use, firstly, the upper semicircular ring piece 1.1 and the lower semicircular ring piece 1.2 are buckled on the outer wall of the pipeline 100, and the upper semicircular ring piece 1.1 and the lower semicircular ring piece 1.2 are fixedly connected as a whole by the connecting bolts 9, and it is noted that the connecting seat 2 welded on the upper semicircular ring piece 1.1 is located directly above the pipeline 100; then the measuring rod 5 with the measuring head 7 on the upper end is installed on the connecting seat 2, and several sections of vertical sleeves 3 are reasonably connected according to the buried depth of the pipeline 100, and the connected vertical sleeves 3 are integrally connected. The body is inserted on the connecting seat 2, and the height of the vertical sleeve 3 should ensure that after it is firmly inserted on the connecting seat 2, the sealing cap 4 to be sealed at its upper end can slightly protrude from the ground, so as to facilitate opening the sealing cap 4 for measurement; then, fine sand is filled in the annular cavity between the measuring rod 5 and the vertical sleeve 3 to form an anti-extrusion fine sand layer 8, and the sealing cap 4 is sealed at the upper end of the vertical sleeve 3 to complete the installation of the entire underground pipeline deformation monitoring device. Multiple sets of underground pipeline deformation monitoring devices can be arranged at intervals on a pipeline 100.
[0025] The fixing ring 1 formed by the upper semicircular ring piece 1.1 and the lower semicircular ring piece 1.2 is firmly fixed on the pipeline 100, so that it can sink synchronously with the pipeline 100, so that the connecting seat 2 and the measuring rod 5 installed on the fixing ring 1 can sink together, and then the probe 7 at the upper end of the measuring rod 5 can be used to accurately measure the settlement value of the pipeline 100; in addition, the vertical sleeve 3 with a cylindrical structure can also weaken the extrusion pressure on its outer surface, and together with the anti-extrusion fine sand layer 8 arranged between the measuring rod 5 and the vertical sleeve 3, the supporting strength of the vertical sleeve 3 can be greatly improved, ensuring good protection for the inner measuring rod 5, avoiding the vertical sleeve 3 from being squeezed and deformed by the surrounding soil layer or tilting, and improving the accuracy and authenticity of monitoring the pipeline 100.
[0026] When monitoring the settlement of pipeline 100, if Figure 3 As shown, the plugging cap 4 of the underground pipeline deformation monitoring device at the position to be monitored is opened, and a level ruler 200 is vertically supported on the ball head 7.2 at the upper end of the measuring rod 5. The level ruler 200 can be kept vertical by the level ball 300 thereon; then the readings a and b on the two level rulers 200 at the rear view (reference point) and the front view (monitoring point) can be measured respectively by a level meter 400 fixed on the ground. It is known that the elevation of the reference point is H, and the elevation of the monitoring point on the pipeline is H. 测 =H+ a - b, H measured at different times 测 The difference is calculated to accurately calculate the settlement of the pipeline 100 corresponding to the underground pipeline deformation monitoring device.
[0027] When monitoring the horizontal displacement of the pipeline 100, Figure 4 As shown, first determine a reference point O on the ground, and support the total station 500 at point O. The plane coordinates of point O (XO ,Y O ); then use the reference point N for orientation; then move the prism rod to the adjacent underground pipeline deformation monitoring device in turn, and align the cone tip at the lower end of the prism rod with the center of the cross-shaped marking groove 13 on the ball head 7.2, thereby forming measuring points A, B, and C, and then use the total station 500 to aim at point A, point B, and point C for measurement in turn, and use the azimuth α measured by the total station 500 and the distance L to point A to automatically calculate the plane coordinates of point A (X A ,Y A ) (The calculation formula is X A =X O +Lsinα、Y A = Y O +Lcosα, the plane coordinates of point B (X B ,Y B ) and the plane coordinates of point C (X C ,Y C ) is calculated in the same way as point A. The horizontal displacement of pipeline 100 is accurately calculated by taking the difference of the plane coordinates of points A, B and C at different times.
Claims
1. An underground pipeline deformation monitoring device, characterized in that: It includes a fixing ring fixed on the pipeline, a connecting seat is arranged at the center of the top wall of the fixing ring, a vertical sleeve is adapted to be inserted on the connecting seat, a sealing cap is buckled at the upper end of the vertical sleeve, a measuring rod is passed through the vertical sleeve along the axis, the lower end of the measuring rod is screwed and fixedly connected to a connecting hole opened at the center of the top wall of the connecting seat, a measuring head is screwed at the upper end of the measuring rod, and an anti-extrusion fine sand layer is arranged in the annular cavity between the measuring rod and the vertical sleeve.
2. The underground pipeline deformation monitoring device according to claim 1 is characterized in that: The fixing ring is formed by buckling an upper semicircular ring piece and a lower semicircular ring piece, and connecting bolts are arranged at the buckling position of the upper semicircular ring piece and the lower semicircular ring piece.
3. The underground pipeline deformation monitoring device according to claim 1 is characterized in that: The connecting seat is a cylindrical seat body, and the vertical sleeve is a cylindrical barrel body whose inner diameter matches the diameter of the connecting seat; a plurality of vertical positioning grooves are evenly distributed along the circumference on the outer wall of the connecting seat, and vertical positioning convex strips that are evenly distributed along the circumference on the lower end of the inner wall of the vertical sleeve are adapted to be plugged in one by one with the vertical positioning grooves.
4. The underground pipeline deformation monitoring device according to claim 1, characterized in that: The vertical sleeve is composed of multiple sections which are connected end to end in sequence, and two adjacent sections of the vertical sleeve are connected as a whole through an internal threaded sleeve joint.
5. The underground pipeline deformation monitoring device according to claim 1, characterized in that: The measuring head is composed of an end cover screwed to the upper end of the measuring rod and a ball head connected to the center of the top wall of the end cover, and a cross-shaped marking groove is arranged at the center of the top wall of the ball head.