CN216246269U - Road surface subsides automatic monitoring device - Google Patents
Road surface subsides automatic monitoring device Download PDFInfo
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- CN216246269U CN216246269U CN202122338583.7U CN202122338583U CN216246269U CN 216246269 U CN216246269 U CN 216246269U CN 202122338583 U CN202122338583 U CN 202122338583U CN 216246269 U CN216246269 U CN 216246269U
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Abstract
The utility model discloses an automatic monitoring device for road surface settlement, which comprises a hollow sleeve buried in the ground, wherein the top of the hollow sleeve is clamped with a protective cover plate; a sedimentation rod which is coaxial with the hollow sleeve is vertically fixed in the hollow sleeve, and the top of the sedimentation rod is lower than the bottom of the protective cover plate; the bottoms of the hollow sleeve and the settling rod are embedded into an undisturbed soil layer; the bottom of the hollow sleeve is provided with a fixed block for keeping the position of the sedimentation rod stable, the upper part of the sedimentation rod is fixed with a displacement sensor, and an ejector pin of the displacement sensor is in a compression state and is in contact with the top surface of the fixed block. The device provided by the utility model acquires the ground surface settlement data through the displacement sensor, can efficiently realize the real-time monitoring of the road ground surface settlement, and is beneficial to the timely implementation of the protection measures of the road ground surface settlement along the foundation pit excavation line; in addition, the device can prevent the road surface water from immersing, prevent that measurement point position from additionally sinking, the measurement point degree of depth reaches the original state soil layer, guarantees that the data result is accurate effective.
Description
Technical Field
The utility model belongs to the field of engineering monitoring, and particularly relates to an automatic monitoring device for road surface settlement.
Background
With the rapid development of the construction scale and the volume of urban underground engineering, large foundation pit engineering along the road is continuously developed. The excavation of the foundation pit causes the settlement and cracking of the road along the line, and in order to prevent the settlement and cracking, the vertical settlement of the road along the excavation line of the foundation pit needs to be monitored in real time so as to ensure the timely implementation of engineering protection measures. The current methods for monitoring the surface subsidence mainly comprise a shallow ground nail identification method, a punctuation level method, an automatic total station method, a settlement meter method and a GPS observation method. However, the existing monitoring method has the following monitoring precision and safety problems more or less:
(1) the pavement water immersion measuring point position drives the measuring point to subside, so that the measuring point generates additional settlement displacement and larger monitoring data is generated;
(2) the depth of the measuring rod stays in a pavement structure layer, the measuring rod is influenced by repeated dynamic load of pavement vehicles, the side bars cannot keep a vertical position, the accuracy of measuring point data is influenced due to the elevation error of the top of the rod caused by the rotation of the measuring rod, and the actual settlement condition of the pavement cannot be truly reflected,
(3) the measuring points are often required to be arranged at positions where vehicles on the road surface come and go more, the data reading mode of the existing device is that the elevation of the top of a pole is measured manually in the traffic peak period, the surface subsidence data reading efficiency is low, the timely implementation of engineering protection measures is not facilitated, and meanwhile potential personnel safety accident potential is avoided.
Therefore, an economical, efficient, safe and convenient automatic monitoring device for road surface peripheral settlement, which is timely in measurement and accurate in data result, is urgently needed.
Disclosure of Invention
The utility model aims to solve the problems that the monitoring process in the prior art is greatly influenced by external factors, the result has larger error, the efficiency of manually reading data is low, and the prior art is unsafe, and provides an economical and efficient automatic monitoring device for road surface settlement.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the automatic monitoring device for road surface settlement comprises a hollow sleeve buried in the ground, wherein two ends of the hollow sleeve are opened, the top of the hollow sleeve is clamped with a protective cover plate in sealing fit with the hollow sleeve, the top of the protective cover plate is flush with the ground, and the bottom of the hollow sleeve is buried in an original soil layer; a sedimentation rod coaxial with the hollow sleeve is vertically fixed in the hollow sleeve, the top of the sedimentation rod is lower than the bottom of the protective cover plate, and the bottom of the sedimentation rod is embedded into an undisturbed soil layer; the bottom of the hollow sleeve is provided with a fixed block for keeping the position of the sedimentation rod stable, the upper part of the sedimentation rod is fixed with a displacement sensor, and an ejector pin of the displacement sensor is in a compression state and is in contact with the top surface of the fixed block.
As a preferred technical scheme, the hollow sleeve comprises an upper clamping part and a lower barrel body part, and the aperture of the clamping part is larger than the diameter of the barrel body part; the clamping part and the barrel body part are integrally connected through a connecting platform; the protective cover plate is placed on the top surface of the connecting platform; and a waterproof sealing ring is arranged between the clamping part and the protective cover plate. Further preferably, an annular groove used for placing the waterproof sealing ring is formed in the inner wall of the clamping portion, positioning and installation of the waterproof sealing ring are facilitated through the annular groove, and the waterproof sealing effect is further improved. Further, the inner wall of the hollow sleeve is coated with an anticorrosive coating. Because the hollow sleeve is buried underground, underground moisture is large, and the hollow sleeve can be protected from corrosion through the anticorrosive coating.
Preferably, the number of the displacement sensors is three, and the three displacement sensors are uniformly distributed on the peripheral side of the settlement rod at intervals of 120 degrees. Furthermore, a data transmission device is fixed on the upper portion of the inner wall of the hollow sleeve and electrically connected with the displacement sensor, and the data transmission device is used for receiving the displacement value of the displacement sensor and transmitting the displacement value to a receiving device. Preferably, the data transmission device is a wireless transmission device or a bluetooth device, and the receiving device is an intelligent terminal such as a computer and a mobile phone. During detection, three sets of surface subsidence data are measured by the three displacement sensors and are uploaded to a data cloud space through the data transmission device, the three sets of subsidence data can be automatically acquired at terminals such as a computer and a mobile phone, and the average value of the three sets of data is taken as the surface subsidence value of each measuring point.
According to the preferable technical scheme, the fixing block is made of steel, and a through positioning threaded hole is formed in the middle of the fixing block; the settlement rod is provided with an external thread and is in threaded connection with the fixed block through the positioning threaded hole.
Preferably, the distance between the top of the sedimentation rod and the bottom of the protective cover plate is 4-6cm, and the distance between the bottom of the sedimentation rod and the undisturbed soil layer is 100-150 cm.
The utility model has the beneficial effects that:
(1) the automatic monitoring device for road surface settlement provided by the utility model can acquire surface settlement data in real time through the displacement sensor, does not need to manually measure and read the rod top elevation of the settlement rod on the spot, avoids the occurrence of personnel safety accidents, efficiently realizes the real-time monitoring of the road surface settlement, and is beneficial to the timely implementation of the protection measures of the road surface settlement along the excavation line of the foundation pit.
(2) According to the utility model, the waterproof sealing ring is arranged between the hollow sleeve and the protective cover plate, so that the monitoring device has a good waterproof effect, can prevent road water from immersing into the hollow sleeve, prevents additional sinking of a measuring point position, and reduces the influence of external factors; in addition, the protective cover plate can effectively protect the measuring points without influencing the normal traffic of the road surface.
(3) The detection device has the advantages that the depth of the detection point reaches the undisturbed soil layer, the detection point is not influenced by road traffic, the settlement rod is fixed by the retention block, the settlement rod is kept vertical and does not rotate, the detection point is buried stably, the accuracy and effectiveness of a data result are ensured, and the actual condition of road surface settlement can be truly reflected.
Drawings
Fig. 1 is a schematic structural diagram of an automatic monitoring device for road surface settlement provided by the utility model;
FIG. 2 is a cross-sectional view of the mounting structure of the hollow sleeve in the ground;
FIG. 3 is a top view of a structure for connecting three displacement sensors with a settling rod;
reference numerals: 1-hollow sleeve, 101-clamping part, 102-barrel body part, 103-connecting platform, 104-annular groove, 2-protective cover plate, 3-settling rod, 4-fixing block, 5-displacement sensor, 6-data transmission device, 7-waterproof sealing ring, 8-undisturbed soil layer and 9-road surface.
Detailed Description
The utility model is further described with reference to the following figures and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, "fixed", "connected", "attached", and the like mean that two members connected to each other are fixed to each other, and are generally fixed to each other by welding, screws, or gluing. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. It is to be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in the appended drawings to indicate orientations and positional relationships, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting.
Referring to fig. 1 and 2, an automatic monitoring device for road surface settlement comprises a hollow sleeve 1 buried in the ground, the inner wall of the hollow sleeve 1 is coated with an anticorrosive coating, the hollow sleeve 1 comprises an upper clamping portion 101 and a lower barrel portion 102, the aperture of the clamping portion 101 is larger than the diameter of the barrel portion 102, and the clamping portion 101 and the barrel portion 102 are integrally connected through a connecting platform 103; the two ends of the hollow sleeve 1 are opened, the top of the hollow sleeve 1 is clamped with a protective cover plate 2 which is in sealing fit with the hollow sleeve 1, the protective cover plate 2 is placed on the connecting platform 103, and the top of the protective cover plate is flush with the road surface; the bottom of the hollow sleeve 1 is embedded into an undisturbed soil layer 8; a sedimentation rod 3 coaxially arranged with the hollow sleeve 1 is vertically fixed in the hollow sleeve 1, the top of the sedimentation rod 3 is 5cm lower than the bottom of the protective cover plate 2, and the distance for embedding the bottom of the sedimentation rod 3 into an undisturbed soil layer 8 is 100 cm; a fixing block 4 for keeping the position of the settling rod stable is arranged at the bottom of the hollow sleeve 1, the fixing block 4 is made of steel, and a through positioning threaded hole is formed in the middle of the fixing block 4; subside pole 3 and have the external screw thread, subside pole 3 and pass through positioning thread hole and fixed block threaded connection. And a displacement sensor is fixed on the upper part of the sedimentation rod, and an ejector pin of the displacement sensor is in a compressed state and is in contact with the top surface of the fixed block. Further, be equipped with waterproof sealing ring 7 between joint portion 101 and the protection apron 2, the annular groove 104 that is used for placing waterproof sealing ring 7 is offered to the inner wall of joint portion 101, is convenient for through annular groove 104 to waterproof sealing ring 7's location and installation, improves waterproof sealing effect.
As a preferred embodiment, referring to fig. 3, the number of the displacement sensors 5 is three, and three displacement sensors 5 are uniformly spaced 120 ° from each other on the peripheral side of the settling rod 3. Further, a data transmission device 6 is fixed on the upper portion of the inner wall of the hollow sleeve 1, the data transmission device 6 is electrically connected with the displacement sensor 5, and the data transmission device 6 is used for receiving the displacement value of the displacement sensor and transmitting the displacement value to a receiving device. During the use, data transmission device 6 optional wireless transmission device or bluetooth device, receiving arrangement can be intelligent terminal such as computer, cell-phone, and these equipment are present ripe equipment, all can purchase from the market and obtain, and the testing personnel can select corresponding equipment according to actual need. During detection, three sets of surface subsidence data are obtained by the three displacement sensors 5 and are uploaded to a data cloud space through the data transmission device 6, the three sets of subsidence data can be automatically obtained at terminals such as a computer and a mobile phone, and the average value of the three sets of data is taken as the surface subsidence value of each measuring point.
The automatic monitoring device for road surface settlement provided by the utility model is used for monitoring the surface settlement, and specifically comprises the following steps:
(1) setting a plurality of measuring point positions on the periphery of a road needing vertical settlement monitoring near a foundation pit, wherein the measuring point distance is 50m, monitoring sections are arranged on the periphery of the road, the number of monitoring points on each side is not less than 5, the row spacing is 2-10 m, and the distance between a first row and the edge of the foundation pit is not more than 2.0 m;
(2) at each measuring point, a drill bit with the diameter of 140mm matched with a core drill is used for penetrating hard shell layers of the pavement such as concrete, asphalt and the like until the hard shell layers reach an original soil layer 8, and clear water is injected into the hole for maintenance after the residue soil in the hole is cleaned;
(3) arranging the hollow sleeve 1 in the hole, inserting the bottom of the hollow sleeve 1 into the undisturbed soil layer 8, and enabling the top of the hollow sleeve to be flush with the top of the hole;
(4) a settlement rod 3 is driven into the undisturbed soil layer 8 along the center of the hole, the top of the settlement rod 3 is about 5cm lower than the ground, and a retaining block 4 and the settlement rod 3 are screwed to the bottom to be just contacted with the top of the undisturbed soil layer 8 so as to keep the vertical position of the settlement rod 3;
(5) three displacement sensors 5 are fixed on the sedimentation rod 3 by adopting epoxy resin cementing agent, and a thimble of each displacement sensor is in contact with the upper surface of the retention block 4 and generates certain initial compression amount to be used as a sedimentation monitoring range; fixing a data transmission device 6 on the inner side of the hollow sleeve 1 by adopting an epoxy resin adhesive, and bridging the leads of the three displacement sensors 5 with the data transmission device 6;
(6) opening the upper part of the hollow sleeve 1 to close the protective cover plate 2, and spraying measuring point numbers to finish measuring point arrangement;
(7) during monitoring, three sets of surface subsidence data are measured by the three displacement sensors 5 and are uploaded to a data cloud space through the data transmission device 6, the three sets of subsidence data can be automatically acquired at terminals such as a computer and a mobile phone, and the average value of the three sets of data is taken as the surface subsidence value of each measuring point.
It should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (8)
1. The utility model provides a road surface subsides automatic monitoring device which characterized in that: the soil-filling device comprises a hollow sleeve buried in the ground, wherein openings are formed in two ends of the hollow sleeve, a protective cover plate in sealing fit with the hollow sleeve is clamped at the top of the hollow sleeve, the top of the protective cover plate is flush with the road surface, and the bottom of the hollow sleeve is buried in an original soil layer; a sedimentation rod coaxial with the hollow sleeve is vertically fixed in the hollow sleeve, the top of the sedimentation rod is lower than the bottom of the protective cover plate, and the bottom of the sedimentation rod is embedded into an undisturbed soil layer; the bottom of the hollow sleeve is provided with a fixed block for keeping the position of the sedimentation rod stable, the upper part of the sedimentation rod is fixed with a displacement sensor, and an ejector pin of the displacement sensor is in a compression state and is in contact with the top surface of the fixed block.
2. The automatic monitoring device of road surface settlement according to claim 1, characterized in that: the hollow sleeve comprises an upper clamping part and a lower barrel body part, and the aperture of the clamping part is larger than the diameter of the barrel body part; the clamping part and the barrel body part are integrally connected through a connecting platform; the protective cover plate is placed on the top surface of the connecting platform; and a waterproof sealing ring is arranged between the clamping part and the protective cover plate.
3. The automatic monitoring device of road surface settlement according to claim 2, characterized in that: the inner wall of joint portion offers the annular groove who is used for placing waterproof sealing circle.
4. The automatic monitoring device of road surface settlement according to claim 1, characterized in that: the inner wall of the hollow sleeve is coated with an anticorrosive coating.
5. The automatic monitoring device of road surface settlement according to claim 1, characterized in that: the three displacement sensors are uniformly distributed on the periphery of the settlement rod at intervals of 120 degrees.
6. The automatic monitoring device of road surface settlement of claim 5, wherein: and a data transmission device is fixed on the upper part of the inner wall of the hollow sleeve and electrically connected with the displacement sensor, and the data transmission device is used for receiving the displacement value of the displacement sensor and transmitting the displacement value to a receiving device.
7. The automatic monitoring device for road surface settlement according to any one of claims 1 to 6, wherein: the fixing block is made of steel, and a through positioning threaded hole is formed in the middle of the fixing block; the settlement rod is provided with an external thread and is in threaded connection with the fixed block through the positioning threaded hole.
8. The automatic monitoring device for road surface settlement according to any one of claims 1 to 6, wherein: the distance between the top of the sedimentation rod and the bottom of the protective cover plate is 4-6cm, and the distance between the bottom of the sedimentation rod and the undisturbed soil layer is 100-150 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122338583.7U CN216246269U (en) | 2021-09-26 | 2021-09-26 | Road surface subsides automatic monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122338583.7U CN216246269U (en) | 2021-09-26 | 2021-09-26 | Road surface subsides automatic monitoring device |
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| CN216246269U true CN216246269U (en) | 2022-04-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753418A (en) * | 2022-04-20 | 2022-07-15 | 中铁建工集团有限公司 | Deep foundation pit engineering settlement and inclination measurement monitoring device in civil construction |
| CN117073624A (en) * | 2023-10-11 | 2023-11-17 | 中煤科工集团武汉设计研究院有限公司 | Coal mine goaf earth surface subsidence monitoring device |
-
2021
- 2021-09-26 CN CN202122338583.7U patent/CN216246269U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753418A (en) * | 2022-04-20 | 2022-07-15 | 中铁建工集团有限公司 | Deep foundation pit engineering settlement and inclination measurement monitoring device in civil construction |
| CN114753418B (en) * | 2022-04-20 | 2023-03-03 | 中铁建工集团有限公司 | Deep foundation pit engineering settlement inclination measuring and monitoring device in civil engineering |
| CN117073624A (en) * | 2023-10-11 | 2023-11-17 | 中煤科工集团武汉设计研究院有限公司 | Coal mine goaf earth surface subsidence monitoring device |
| CN117073624B (en) * | 2023-10-11 | 2024-03-22 | 中煤科工集团武汉设计研究院有限公司 | Coal mine goaf earth surface subsidence monitoring device |
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