CN211012911U - Subway safety assessment and early warning device - Google Patents
Subway safety assessment and early warning device Download PDFInfo
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- CN211012911U CN211012911U CN201922156843.1U CN201922156843U CN211012911U CN 211012911 U CN211012911 U CN 211012911U CN 201922156843 U CN201922156843 U CN 201922156843U CN 211012911 U CN211012911 U CN 211012911U
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Abstract
The embodiment of the utility model discloses subway safety assessment and early warning device, pipe such as including spherical pressure sensing main part, water, spherical pressure sensing main part comprises surface frame, auxiliary support and atress cambered surface, and the centre of a circle department of surface frame is provided with integrated electronic component, is provided with the atress pole just to the middle of the dorsal surface of atress cambered surface on the auxiliary support, and the top of atress pole is provided with miniature pressure sensor, is provided with the tube hole of installation atress pole on the auxiliary support, and the bottom that the atress pole is located the tube hole is provided with compensation spring; the water body equipotential tube is internally provided with a water level sensor which is electrically connected with an integrated electronic element through a wire, a sealing seat is arranged in the connection part of the water body equipotential tube and the surface frame, the whole deep displacement sensor system is completely buried underground, the sensor directly outputs digital information, the construction cost of the monitoring system is greatly reduced, and the stability, the safety, the sensitivity and the anti-interference performance of the information are ensured.
Description
Technical Field
The embodiment of the utility model provides a subway construction technical field, concretely relates to subway safety aassessment and early warning device.
Background
With the rapid development of national economic construction, urban underground engineering enters a brisk development stage, the first to middle of the 21 st century will be the times of large-scale construction of subways and other underground engineering in China, because the subway stations are generally positioned on busy road sections of cities, buildings near the stations are dense, and the increase of the plane size and excavation depth (generally about 17-20 m) of deep foundation pits of the subway stations brings about a series of complex problems, such as: deformation and stability of the foundation pit enclosure structure, influence on adjacent environment, underground pipelines and ground traffic in construction and the like, and the problems even possibly cause safety accidents. Therefore, the monitoring and measurement in the subway construction process and the operation process are enhanced, the monitoring means of each monitoring project is improved, and the subway development requirement is met.
The conventional monitoring method generally has the following defects: in the construction process, certain potential safety hazards exist in manual monitoring, and personnel in special areas cannot reach the potential safety hazards; in the manual monitoring environment, the monitoring frequency is low, and manual errors cannot be avoided; the traditional manual regular monitoring measures cannot monitor in real time and discover the sudden deformation condition of the foundation pit in time; the manual monitoring cost is high, and the monitoring instrument is easy to damage.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a subway safety aassessment and early warning device, through spherical pressure sensing main part and the sensing device of setting in spherical pressure sensing main part, thereby effectual solution is in the work progress, there is certain personnel's potential safety hazard in manual monitoring, special district personnel can't reach, under the manual monitoring environment, monitoring frequency is low, artifical error can not avoid, traditional artifical periodic monitoring measure still can not real-time supervision, the proruption deformation condition of timely discovery foundation ditch, artifical monitoring is with high costs, the fragile problem of monitoring instrument.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a safety assessment and early warning device for a subway comprises a spherical pressure sensing main body and a water body equipotential tube arranged at the bottom of the spherical pressure sensing main body, wherein the spherical pressure sensing main body consists of a honeycomb surface frame and a stress cambered surface embedded in the surface frame, an integrated electronic element is arranged at the circle center of the surface frame, an auxiliary support connected to the surface frame is arranged at the back side of the stress cambered surface, a stress rod opposite to the middle of the back side surface of the stress cambered surface is arranged on the auxiliary support, a miniature pressure sensor is arranged at the top of the stress rod in contact with the back side surface of the stress cambered surface, a pipe hole for installing the stress rod is arranged on the auxiliary support, and a compensation spring is arranged at the bottom of the stress rod, which is positioned at the pipe hole;
the water body equipotential tube is internally provided with a water level sensor which is electrically connected with an integrated electronic element through a lead, and a sealing seat is arranged inside the joint of the water body equipotential tube and the surface frame.
As a preferred embodiment of the present invention, the surface frame is covered with a coating film, and the radius of the coating film is 1.5 times the radius of the surface frame.
As an optimal scheme of the utility model, be located the atress cambered surface and be provided with 0.3 ~ 0.5 cm's protruding circle on the surperficial frame all around.
As a preferred scheme of the utility model, integrated electronic component includes the ARM7 treater, L oRa1278-C1 front end RF wireless transceiver module, miniature pressure sensor is cylinder formula pressure sensor or flexible pressure sensor, level sensor is DATA-51 input type level sensor.
As an optimized proposal of the utility model, the bottom pipe body of the water body equipotential pipe is internally provided with an anti-blocking net.
The utility model discloses an embodiment has following advantage:
the utility model discloses a solve because the cable damages the difficult problem that causes entire system fragile.
The whole deep displacement sensor system is completely buried underground, the sensor directly outputs digital information, special signal reading and processing equipment required by a conventional monitoring instrument is not needed, the construction cost of the monitoring system is greatly reduced, the stability and the safety of the information are effectively guaranteed, and the deep displacement sensor system is high in sensitivity, high in precision, small in size and strong in anti-interference performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is the utility model discloses subway safety assessment and early warning device's schematic structure diagram among the embodiment.
In the figure:
1-a spherical pressure-sensitive body; 2-water body equipotential tubes; 3-integrated electronic components; 4-a water level sensor; 5-sealing seat; 6-coating a film; 7-raised circles; 8-anti-blocking net;
101-a surface frame; 102-stress arc surface; 103-a secondary support; 104-a force-bearing rod; 105-a miniature pressure sensor; 106-pore of pipe; 107-compensation spring.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a subway safety aassessment and early warning device, include spherical pressure sensing main part 1 and install water equipotential pipe 2 in spherical pressure sensing main part 1 bottom, form the whole safe technical means of subway construction and operation line.
According to a large amount of data research, the overall basic condition of the subway at present has the following characteristics:
the subway construction method has the advantages that the subway construction method is various in subway construction form and construction process, the construction geological conditions are complex, the deformation control on the surrounding environment is strict, the construction site space is narrow, the excavation depth of a foundation pit is deep, and therefore the diversity of subway monitoring means is very important.
The most common wire net form structure of the urban subway line is a grid type, all lines are crossed vertically and horizontally, and transfer stations are more, so that a monitoring means for passing the existing line downwards is particularly important in the subway construction process.
The spherical pressure sensing main body 1 comprises a honeycomb surface frame 101 and stress cambered surfaces 102 embedded in the surface frame 101, the stress cambered surfaces 102 can be square, regular polygon and round in specific shape, the stress cambered surfaces 102 are arranged on the spherical pressure sensing main body 1 in a three-layer annular array mode, and the central angle of every two adjacent stress cambered surfaces 102 is 30-45 degrees
Further, the stressed arc surface 102 may also adopt a honeycomb distribution mode, i.e. a spherical surface is divided into a limited number of regular hexagonal surfaces.
The comprehensive collection of soil settlement, displacement and offset data of the buried position is realized by arranging the stress cambered surface 102.
When the invention is buried, the spherical pressure sensing main body 1 is buried underground in a columnar perforation mode, and the original soil is backfilled and tamped.
The centre of a circle department of surface frame 101 is provided with integrated electronic component 3, furtherly, integrated electronic component 3 in the utility model includes ARM7 treater, L oRa1278-C1 front end RF wireless transceiver module, miniature pressure sensor 105 is cylinder pressure sensor or flexible pressure sensor, level sensor 4 is DATA-51 formula level sensor of input, can carry out effectual DATA detection to the soil property and the groundwater of geology and soil layer through each high accuracy sensor, and can effectually avoid monitoring environment's electromagnetic interference through wireless DATA transmission and near field communication's mode, low power consumption, independent work, it need not to bury any communication cable and supply cable underground to realize the earth's surface within range, really "wireless" work, the sensor directly outputs digital information, do not need the required special signal of conventional monitoring instrument to read and processing apparatus, not only reduce monitoring system's construction cost by a wide margin, still effectively guarantee stability and the security of information, realize that whole deep displacement sensor system is whole to bury underground, hardly discover.
During operation, a secondary support 103 connected to the surface frame 101 is arranged on the back side of the stressed cambered surface 102, a stressed rod 104 opposite to the middle of the back side of the stressed cambered surface 102 is arranged on the secondary support 103, a miniature pressure sensor 105 is arranged at the top of the stressed rod 104 in contact with the back side of the stressed cambered surface 102, a pipe hole 106 for mounting the stressed rod 104 is arranged on the secondary support 103, and a compensation spring 107 is arranged at the bottom of the stressed rod 104, which is positioned at the pipe hole 106.
The soil deflection and settlement will make the soil form an acting force on the stressed arc surface 102, and the interaction force between the stressed arc surface 102 and the micro pressure sensor 105 forms the settlement and displacement data of the soil.
Because the soil layer is subsiding and the in-process of skew, certain displacement also can be produced to spherical pressure sensing main part 1 itself for there is the deviation between the interaction force of atress cambered surface 102 and soil, and then influences its monitoring result, the utility model discloses a two aspects are solved:
firstly, through bottom setting compensation spring 107 in the tube hole 106 of installation atress pole 104, when burying spherical pressure sensing main part 1 underground, miniature pressure sensor 105 records initial soil property pressure data, when spherical pressure sensing main part 1 position takes place to squint, the condition that pressure reduces or pressure increase can appear in the atress cambered surface 102 corresponding to it, at this moment, reaction force through compensation spring 107 effect on atress pole 104 compensates the soil layer pressure that reduces partly or resists the soil layer pressure that increases the part, thereby realize miniature pressure sensor 105's among the testing process relative steady state, and then improve the accuracy of data among the testing process.
Secondly, set up water body equipotential pipe 2, because the water body equipotential pipe 2 lengthways extend longer, consequently can play fixed effect to spherical pressure sensing main part 1, avoid taking place local settlement and position offset when the soil layer, the position of spherical pressure sensing main part 1 changes.
Further, the utility model discloses a sensor of accessible body installation coating infiltration water on the spherical pressure sensing main part 1, the content of the infiltration water in the further detection soil layer and the detection of the flow direction of infiltration water keep the relative position of spherical pressure sensing main part 1 fixed simultaneously.
The utility model discloses waiting pipe 2 with the water to bury underground water layer underground, and stretch into the body half to underground water layer in, wait the inside water level sensor 4 that sets up of pipe 2 through the water, carry out ground water level's data detection, water level sensor 4 passes through wire electric connection integrated electronic component 3, the water waits that pipe 2 and the inside of surperficial frame 101 junction are provided with seal receptacle 5, through the antenna of the wireless transceiver module of 5 mountable L oRa1278-C1 front end RF of seal receptacle.
The surface frame 101 is covered with the coating film 6, the radius of the coating film 6 is 1.5 times of the radius of the surface frame 101, the coating film 6 has the effect of sealing the structure in the spherical pressure sensing main body 1, and the surface of the coating film 6 is attached to the stress arc surface 102 after the maximum acting force is applied to the surface of the coating film 6 when the stress arc surface 102 in the convex ring 7 is compressed and applied with force by soil, so that the surface tension of the coating film 6 is not changed, the accuracy of detection data is ensured, the corrosion of water vapor in the soil to the structure in the spherical pressure sensing main body 1 is avoided, and the service life of the coating film is prolonged.
The surface frame 101 located around the stress cambered surface 102 is provided with a 0.3-0.5 cm convex ring 7, and the convex ring 7 has the effect that soil is compressed and formed in the convex ring 7 in the embedding process of the spherical pressure sensing main body 1 to form a force application column for the stress cambered surface 102.
The bottom body of the water body equipotential pipe 2 is internally provided with an anti-blocking net 8, so that the detection precision of the water level sensor 4 is prevented from being influenced when foreign matters enter the water body equipotential pipe 2.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (5)
1. The subway safety assessment and early warning device is characterized by comprising a spherical pressure sensing main body (1) and a water body equipotential tube (2) installed at the bottom of the spherical pressure sensing main body (1), wherein the spherical pressure sensing main body (1) is composed of a honeycomb-shaped surface frame (101) and a stress cambered surface (102) embedded in the surface frame (101), an integrated electronic element (3) is arranged at the circle center of the surface frame (101), a secondary support (103) connected to the surface frame (101) is arranged on the back side of the stress cambered surface (102), a stress rod (104) opposite to the middle of the back side surface of the stress cambered surface (102) is arranged on the secondary support (103), a micro pressure sensor (105) is arranged at the top of the stress rod (104) in contact with the back side surface of the stress cambered surface (102), and a tube hole (106) for installing the stress rod (104) is formed in the secondary support (103), the stress rod (104) is positioned at the bottom of the pipe hole (106) and is provided with a compensation spring (107);
the water body equipotential tube (2) is internally provided with a water level sensor (4), the water level sensor (4) is electrically connected with the integrated electronic element (3) through a conducting wire, and a sealing seat (5) is arranged inside the joint of the water body equipotential tube (2) and the surface frame (101).
2. A subway safety assessment and early warning device according to claim 1, wherein said surface frame (101) is covered with a covering film (6), and the radius of said covering film (6) is 1.5 times the radius of said surface frame (101).
3. The subway safety assessment and early warning device as claimed in claim 1, wherein a raised ring (7) of 0.3-0.5 cm is arranged on the surface frame (101) around the stress arc surface (102).
4. A subway safety assessment and pre-warning device as claimed in claim 1, wherein said integrated electronic components (3) comprise an ARM7 processor, L oRa1278-C1 front end RF transceiver module, said miniature pressure sensor (105) is a cylindrical pressure sensor or a flexible pressure sensor, and said water level sensor (4) is a DATA-51 drop-in water level sensor.
5. A subway safety assessment and early warning device as claimed in claim 1, wherein an anti-blocking net (8) is arranged in the bottom pipe body of said water body equipotential pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156843.1U CN211012911U (en) | 2019-12-05 | 2019-12-05 | Subway safety assessment and early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156843.1U CN211012911U (en) | 2019-12-05 | 2019-12-05 | Subway safety assessment and early warning device |
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| CN211012911U true CN211012911U (en) | 2020-07-14 |
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| CN201922156843.1U Active CN211012911U (en) | 2019-12-05 | 2019-12-05 | Subway safety assessment and early warning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432636A (en) * | 2021-07-13 | 2021-09-24 | 南京华群能源集团有限公司 | Intelligent sensing early warning spherical terminal for deep foundation pit operation |
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2019
- 2019-12-05 CN CN201922156843.1U patent/CN211012911U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432636A (en) * | 2021-07-13 | 2021-09-24 | 南京华群能源集团有限公司 | Intelligent sensing early warning spherical terminal for deep foundation pit operation |
| CN113432636B (en) * | 2021-07-13 | 2023-03-14 | 南京华群能源集团有限公司 | Intelligent sensing early warning spherical terminal for deep foundation pit operation |
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Address after: Room 1139, No. 40, Xiejia Hutong, Dongcheng District, Beijing 101100 Patentee after: CCCC Third Highway Engineering Technology Co., Ltd Address before: Room 1139, No. 40, Xiejia Hutong, Dongcheng District, Beijing 101100 Patentee before: CCCC Third Highway Engineering Bureau (Beijing) engineering test and Inspection Co., Ltd |