CN218380958U - Subway station high side wall stability monitoring devices - Google Patents
Subway station high side wall stability monitoring devices Download PDFInfo
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- CN218380958U CN218380958U CN202222732488.XU CN202222732488U CN218380958U CN 218380958 U CN218380958 U CN 218380958U CN 202222732488 U CN202222732488 U CN 202222732488U CN 218380958 U CN218380958 U CN 218380958U
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Abstract
The utility model provides a subway station high side wall stability monitoring devices, include: the monitoring device comprises a monitoring cylinder, a support plate and a data acquisition box; be fixed with a monitoring section of thick bamboo between per two mounting panels, be equipped with strain sensor and slope sensor in the monitoring section of thick bamboo, the data acquisition box is fixed in high side wall surface, and strain sensor and slope sensor are connected with the data acquisition box electricity, and the anchor rope includes a plurality of steel strands, steel strand and mounting panel fixed connection, and the position of fixing is different between every steel strand and the mounting panel. The utility model discloses a high side wall stability detection device of subway station can monitor the atress change of anchor rope through strain sensor and the slope sensor in the monitoring section of thick bamboo to data transmission who will change is gone out, in order to supply computational analysis. Through the data of gathering, can monitor the stress condition of anchor rope, the complete reliable deformation condition who obtains each steel strand wires of anchor rope, very big improvement is to accuracy and the reliability that its operating condition judged.
Description
Technical Field
The utility model relates to a subway station construction technical field especially relates to a subway station high side wall stability monitoring devices.
Background
The engineering environment in the subway station construction is mostly geotechnical engineering, and in order to guarantee the safe operation of work progress, the stability of the side wall geotechnical engineering of subway station is always concerned with. The adoption of prestressed anchorage cable technology to anchor rock mass is an important component in the field of geotechnical engineering. The anchoring means is adopted in geotechnical engineering, the strength and the stability of the soil body can be enhanced, and the volume and the dead weight of the enclosure structure can be effectively reduced, so that the complex problem of the geotechnical engineering of the subway station is solved, the stability of the high side wall of the station is enhanced, and the anchor cable technology becomes the most economical and practical method.
The complete and reliable three-dimensional deformation of the anchor cable is obtained in the engineering, and the accuracy and the reliability of judging the working state of the anchor cable can be greatly improved. In the construction process, the safety state of the construction environment can be effectively known through the stress change of the prestressed anchor cable. However, since the existing prestressed anchor cable is composed of a plurality of steel strands, the existing monitoring means is difficult to monitor the stress state of the plurality of anchor cables in real time.
SUMMERY OF THE UTILITY MODEL
The utility model provides a subway station high side wall stability monitoring devices to overcome above-mentioned problem.
A subway station high side wall stability monitoring device comprises an anchor cable, wherein one end of the anchor cable is anchored in a rock body, and the other end of the anchor cable is fixed on the surface of a high side wall through an anchorage device; further comprising: the monitoring device comprises a monitoring cylinder, a support plate and a data acquisition box;
the anchor cable comprises a plurality of steel strands, the steel strands are fixedly connected with the support plates, and the fixing positions of the steel strands and the support plates are different.
Furthermore, the monitoring device also comprises a conduit, one end of the conduit penetrates through the support plate to be communicated with the monitoring cylinder, the other end of the conduit penetrates out of the surface of the high-side wall, and a cable is arranged in the conduit.
Furthermore, the support plate is provided with a steel strand hole and a wire pipe hole, the steel strand hole is formed in the circumferential outer side of the support plate, the wire pipe hole is formed in the center of the support plate, the steel strand penetrates through the steel strand hole and is fixedly connected with the support plate, and the wire pipe penetrates through the wire pipe hole and is communicated with the monitoring cylinder.
Furthermore, the number of the steel strand holes is three, the connecting lines of the three steel strand holes form an equilateral triangle, and the wire pipe hole is formed in the center of the equilateral triangle.
Furthermore, a grouting pipe hole is formed in the support plate and used for enabling a grouting pipe to penetrate through the support plate.
Furthermore, the laser range finder is arranged on the data acquisition box and is electrically connected with the data acquisition box.
Further, the data acquisition box comprises a data acquisition device and a data transmission device, the data acquisition device is used for acquiring data monitored by the strain sensor and the inclination sensor, and the data transmission device is used for transmitting data.
Furthermore, a groove is formed in the monitoring cylinder, and the strain sensor and the inclination sensor are mounted in the groove.
The utility model discloses a high side wall stability detection device of subway station, with anchor rope, a monitoring section of thick bamboo fixed connection, change when the anchor rope atress, can monitor the atress change of anchor rope through strain sensor and the slope sensor in the monitoring section of thick bamboo to go out the data transmission who changes, in order to supply computational analysis. Through the acquired data, the stress state of the anchor cable can be monitored, the deformation condition of each steel strand of the anchor cable can be completely and reliably acquired, and the accuracy and the reliability of the working state judgment of the anchor cable are greatly improved. The utility model discloses can be in the work progress, carry out omnidirectional real-time supervision to anchor cable deformation in high side wall displacement and the high side wall to assess high side wall state and security, simple structure easily operates, and the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a subway station high side wall stability monitoring device disclosed in the embodiment of the utility model;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view of a support plate disclosed in an embodiment of the present invention;
fig. 4 is a schematic structural view of a data collection box disclosed in the embodiment of the present invention.
In the figure: 1. an anchor cable; 2. a monitoring cylinder; 3. a mounting plate; 31. a steel strand hole; 32. a wire conduit hole; 33. grouting pipe holes; 4. a data collection box; 5. a strain sensor; 6. a tilt sensor; 7. a conduit; 8. laser range finder.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, a subway station high side wall stability monitoring device includes: the system comprises an anchor cable 1, a monitoring cylinder 2, a support plate 3 and a data acquisition box 4; one end of the anchor cable 1 is anchored in a rock body, and the other end of the anchor cable is fixed on the surface of the high side wall through an anchorage device;
the anchor cable comprises a support plate 3 and is characterized in that the support plate 3 is arranged at a free section, the support plate 3 is provided with a plurality of support plates 3, every two support plates 3 are fixedly provided with a monitoring cylinder 2, a strain sensor 5 and an inclination sensor 6 are arranged in the monitoring cylinder 2, a data acquisition box 4 is fixed on the surface of a high-side wall, the strain sensor 5 and the inclination sensor 6 are electrically connected with the data acquisition box 4, the anchor cable 1 comprises a plurality of steel strands, the steel strands are fixedly connected with the support plates 3, and the fixed positions of the steel strands and the support plates 3 are different.
The utility model discloses a high side wall stability detection device of subway station, with anchor rope 1, 2 fixed connection of a monitoring section of thick bamboo, change when anchor rope 1 atress, can monitor the atress change of anchor rope 1 through strain sensor 5 and the slope sensor 6 in a monitoring section of thick bamboo 2 to data transmission who will change goes out, in order to supply computational analysis. Through the acquired data, the stress state of the anchor cable 1 can be monitored, the deformation condition of each steel strand of the anchor cable 1 can be completely and reliably acquired, and the accuracy and reliability of the judgment of the working state of the anchor cable are greatly improved.
In this embodiment, the position that each steel strand wires and mounting panel 3 are fixed is different, and when the steel strand wires stress state change of difference is different, the steel strand wires are different to the power of mounting panel transmission, and a monitoring section of thick bamboo circumference receives unbalanced power, sets up a plurality of strain sensor in a monitoring section of thick bamboo, and all strain sensor in the same monitoring section of thick bamboo are in same axial position for the strain of monitoring a monitoring section of thick bamboo of same axial position department, thereby monitor the stress state of different steel strand wires. Simultaneously, different steel strand wires are different to the power of mounting panel, make monitoring section of thick bamboo take place the slope, and slope sensor 6 is used for measuring the slope change of monitoring section of thick bamboo.
In this embodiment, the tilt sensor adopts a fiber grating inclinometer, and the model is as follows: FBG-IM, the strain sensor is a steel sheet type strain sensor with the model of MS-01, and the inclination sensor and the strain sensor are not limited to the two types and models.
In this embodiment, set up six mounting panels 3 and three monitoring section of thick bamboo 2 at the free section, also can set up monitoring section of thick bamboo 2's quantity and position as required.
In this embodiment, the monitoring device further comprises a conduit 7, one end of the conduit 7 penetrates through the support plate 3 to be communicated with the monitoring cylinder 2, the other end of the conduit penetrates through the surface of the high-side wall, and a cable is arranged in the conduit 7.
The conduit 7 is a metal hose for protecting the cable.
The support plate 3 is provided with a steel strand hole 31 and a wire pipe hole 32, the steel strand hole 31 is arranged on the outer side of the support plate 3 in the circumferential direction, the wire pipe hole 32 is arranged at the center of the support plate 3, a steel strand penetrates through the steel strand hole 31 and is fixedly connected with the support plate 3, and a wire pipe 7 penetrates through the wire pipe hole 32 and is communicated with the monitoring cylinder 2.
Still be equipped with the bolt hole on the mounting panel 3, mounting panel 3 and monitoring section of thick bamboo 2 pass through bolt fixed connection, then weld sealed with mounting panel 3 and monitoring section of thick bamboo 2 again, guarantee the stability of the two connection, avoid silt to get into in the monitoring section of thick bamboo 2 simultaneously. The support plate 3 is further provided with a grouting pipe hole 33, and the grouting pipe hole 33 is used for enabling a grouting pipe to penetrate through the support plate 3. The number of the grouting pipes can be set as required, and the grouting pipes are used for grouting into the anchor holes and anchoring the anchor cables.
In this embodiment, after the conduit 7 passes through the conduit hole 32, the conduit 7 is welded to the support plate 3, so that the condition that the silt in the anchor hole enters the monitoring cylinder to damage the sensor is avoided.
In this embodiment, the number of the steel strand holes 31 is three, the connecting lines of the three steel strand holes 31 form an equilateral triangle, and the wire pipe hole 32 is disposed in the center of the equilateral triangle. The anchor cable 1 comprises three steel strands which respectively penetrate through the three steel strand holes 31, and when the three steel strands are stressed differently, the stress states of the different steel strands can be measured more easily. The conduit is arranged among the three steel strands, and the steel strands can protect the conduit.
As shown in fig. 4, the present embodiment further includes a laser distance meter 8, where the laser distance meter 8 is disposed on the data collection box 4 and electrically connected to the data collection box 4.
The deformation of the side wall of the subway station reflects the deformation of surrounding rock masses and supporting structures, the side wall is one of main monitoring objects of the subway station, and the stability of the side wall can be evaluated by observing the horizontal displacement of the side wall. The method has the advantages that the supporting structure, the side wall and the like are monitored in the subway station construction, the displacement change of the side wall and the deformation state of the side wall enclosure mechanism are accurately and timely obtained, the stability of the high side wall is ensured based on monitoring data, and the support is dynamically managed.
In the complicated underground works such as subway stations at present stage, the stability of side wall mainly is through the deformation of side wall, and mostly be manual monitoring, leads to the monitoring volume few, speed slow, can not in time reflect the state of high side wall.
In this embodiment, the data collection box 4 includes a data collection device and a data transmission device, the data collection device is used for collecting the data monitored by the strain sensor 5 and the tilt sensor 6, and the data transmission device is used for transmitting the data.
Still be equipped with the transformer in the data acquisition case, 220V power is adopted to this embodiment, and the power passes through the transformer and supplies power for data acquisition device and data transmission device, data acquisition device passes through the cable and is connected and gather the detection information with the sensor in the monitoring section of thick bamboo 2, and data transmission device is in uploading sensor monitoring information to cloud ware, realizes the remote real-time reading of intelligent subway station monitoring data through Internet access.
In this embodiment, a groove is formed in the monitoring cylinder 2, and the strain sensor 5 and the inclination sensor 6 are installed in the groove. The bottom surface of the groove is a plane, so that the installation of the sensor is convenient, the strain sensor 5 and the inclination sensor 6 are installed in the groove in a bonding or welding mode, the positions of the strain sensor 5 and the inclination sensor 6 are determined, and the installation strength is better.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. A subway station high side wall stability monitoring device comprises an anchor cable, wherein one end of the anchor cable is anchored in a rock body, and the other end of the anchor cable is fixed on the surface of a high side wall through an anchorage device; it is characterized by also comprising: the monitoring device comprises a monitoring cylinder, a support plate and a data acquisition box;
the anchor cable comprises a support plate and is characterized in that the support plate is arranged at a free section, the free section is provided with a plurality of support plates, a monitoring cylinder is fixed between every two support plates, a strain sensor and an inclination sensor are arranged in the monitoring cylinder, a data acquisition box is fixed on the surface of the high side wall, the strain sensor and the inclination sensor are electrically connected with the data acquisition box, the anchor cable comprises a plurality of steel strands, the steel strands are fixedly connected with the support plates, and the fixed positions of the steel strands and the support plates are different.
2. The device for monitoring the stability of the high side wall of the subway station as claimed in claim 1, further comprising a conduit, wherein one end of the conduit passes through the support plate and is communicated with the monitoring cylinder, the other end of the conduit passes through the surface of the high side wall, and a cable is arranged in the conduit.
3. The device for monitoring the stability of the high side wall of the subway station as claimed in claim 1, wherein said supporting plate is provided with a steel strand hole and a wire tube hole, said steel strand hole is arranged at the circumferential outer side of said supporting plate, said wire tube hole is arranged at the center of said supporting plate, said steel strand passes through said steel strand hole and is fixedly connected with said supporting plate, said wire tube passes through said wire tube hole and is communicated with said monitoring cylinder.
4. The device for monitoring the stability of the high side wall of the subway station as claimed in claim 3, wherein there are three said steel strand holes, the connecting lines of the three said steel strand holes form an equilateral triangle, and said wire tube hole is arranged in the center of said equilateral triangle.
5. The device for monitoring the stability of the high side wall of the subway station as claimed in claim 3, wherein said support plate is further provided with grouting pipe holes, said grouting pipe holes being used for enabling grouting pipes to pass through said support plate.
6. The device for monitoring the stability of the high side wall of the subway station as claimed in claim 1, further comprising a laser range finder, wherein said laser range finder is arranged on said data collection box and electrically connected with said data collection box.
7. The device for monitoring the stability of the high side wall of the subway station as claimed in claim 1, wherein said data collection box comprises a data collection device and a data transmission device, said data collection device is used for collecting the data monitored by said strain sensor and said inclination sensor, said data transmission device is used for transmitting the data.
8. The device for monitoring the stability of the high side wall of the subway station as claimed in claim 1, wherein said monitoring cylinder is provided with a groove therein, and said strain sensor and tilt sensor are installed in said groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222732488.XU CN218380958U (en) | 2022-10-17 | 2022-10-17 | Subway station high side wall stability monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222732488.XU CN218380958U (en) | 2022-10-17 | 2022-10-17 | Subway station high side wall stability monitoring devices |
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| Publication Number | Publication Date |
|---|---|
| CN218380958U true CN218380958U (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222732488.XU Active CN218380958U (en) | 2022-10-17 | 2022-10-17 | Subway station high side wall stability monitoring devices |
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| CN (1) | CN218380958U (en) |
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- 2022-10-17 CN CN202222732488.XU patent/CN218380958U/en active Active
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