CN213336579U - Slope stability monitoring anchor rod and anchor rod early warning system - Google Patents
Slope stability monitoring anchor rod and anchor rod early warning system Download PDFInfo
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- CN213336579U CN213336579U CN202022480167.6U CN202022480167U CN213336579U CN 213336579 U CN213336579 U CN 213336579U CN 202022480167 U CN202022480167 U CN 202022480167U CN 213336579 U CN213336579 U CN 213336579U
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Abstract
The utility model discloses a side slope stability monitoring stock and stock early warning system, including the stock body of rod, fiber grating strain transducer, temperature sensor, data converter and fiber grating demodulator, can monitor seasonal or perennial frozen soil side slope ground body temperature and side slope stress strain simultaneously, the side slope engineering of solving seasonal or perennial frozen soil area can only judge its steady state's problem through survey stress or displacement. The utility model discloses a slope country rock stress strain deflection is converted to the accumulative total deflection to stock early warning system will monitor the stock, every day, every month, the accumulative total deflection of each year surpasses a definite value, early warning system will give the early warning suggestion, can monitor the temperature variation of the ground body of seasonal or perennial frozen soil slope simultaneously, when temperature variation is undulant great, monitoring system can give the early warning, the suggestion staff takes interim reinforcement measures to the slope, reduce the emergence of potential dangerous accident as far as possible.
Description
Technical Field
The utility model belongs to the technical field of civil engineering, concretely relates to side slope stability monitoring stock and stock early warning system.
Background
The monitoring anchor rod is widely applied to the slope engineering, and when the monitoring anchor rod is applied to different supporting engineering, the requirements on the functions of the monitoring anchor rod are different. When the slope engineering is located in a seasonal or perennial frozen soil area or the slope is in an extreme weather condition, the change range of the working environment temperature is large, and the temperature factor has a large influence on the stability of the slope, so that the slope soil temperature change can be timely and accurately known, and the stable state of the slope can be judged necessarily. Most of the existing monitoring anchor rods applied to slope engineering judge the stable state of the engineering only through the stress and deformation of surrounding rocks, and rarely can measure the temperature of rock and soil mass of the slope engineering at the same time; in addition, the stress strain of the rock-soil body around the stock is surveyed to monitoring stock in the past adopts resistance-type foil gage etc. more, and the influence of temperature can make measuring error increase when temperature variation is great, and in seasonally frozen soil or permafrost area, the temperature of the soil body around the soil is lower, and operational environment is poor, current monitoring stock is when using, the sensor very easily takes place to damage, consequently, the urgent need design one kind be more be fit for being used for seasonally or permafrost area can monitor rock-soil body temperature and slope stress strain slope stability monitoring stock simultaneously.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides a side slope stability monitoring stock and stock early warning system can monitor seasonal or perennial frozen soil side slope ground body temperature and side slope stress strain simultaneously to it is not fragile when monitoring the stock use, has longer life, the utility model provides a monitoring stock more is applicable to the side slope ground body temperature and the monitoring of side slope stress strain in seasonal or perennial frozen soil side slope area.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a side slope stability monitoring stock, includes the stock body of rod, fiber grating strain transducer, temperature sensor, data converter and fiber grating demodulator, wherein temperature sensor sets up the afterbody of the stock body of rod, temperature sensor with the temperature that is used for monitoring the side slope is connected to the data converter, fiber grating strain transducer sets up inside the stock body of rod, fiber grating strain transducer is connected with fiber grating demodulator and is used for monitoring side slope stress and meet an emergency, data converter and fiber grating demodulator set up the head of the stock body of rod.
Furthermore, two through holes are reserved in the anchor rod body, one of the through holes penetrates through the anchor rod body and is provided with a light mobile cable, the front end of the light mobile cable extends into the head of the anchor rod body to be connected with a data converter, and the tail end of the light mobile cable is connected with a temperature sensor; and a fiber grating strain sensor is arranged in the other through hole, the front end of the fiber grating strain sensor extends into the head of the anchor rod body to be connected with a fiber grating demodulator, and the tail end of the fiber grating strain sensor is arranged in the anchor rod body.
Further, stock body of rod afterbody is provided with the draw-in groove, temperature sensor includes temperature sensor body and temperature sensor base the temperature sensor base card is established in the draw-in groove, still be provided with a temperature sensor protective housing on the temperature sensor body, the temperature sensor protective housing is the hemisphere, the temperature sensor protective housing is used for avoiding temperature sensor to cause the damage when the stock is installed or is used.
Furthermore, a hole for passing through the light mobile cable is formed in the anchor rod body, a data converter interface A2 is arranged on the data converter, and the temperature sensor is connected with the data converter interface A2 through the light mobile cable arranged in the anchor rod body; the data converter is also provided with a data converter interface B2, and the data converter interface B2 is connected with an early warning system through a light mobile cable.
Furthermore, the fiber grating strain sensor is a temperature self-compensation fiber grating strain sensor, the fiber grating strain sensor is installed in a through hole in the anchor rod body, and the diameter of the through hole is slightly larger than that of the fiber grating strain sensor.
Further, a fiber grating demodulator interface a1 and a fiber grating demodulator interface B1 are arranged on the fiber grating demodulator, and the fiber grating strain sensor is connected with the fiber grating demodulator temperature self-compensation fiber grating strain sensor through the fiber grating demodulator interface a 1; the fiber grating demodulator interface B1 is connected with the early warning system through a light mobile cable.
Further, the head of the anchor rod body is further provided with a tray, the tray is connected with a nut, a protective shell is welded and fixed on the nut, a protective cover is connected to the protective shell in a threaded mode, and the protective shell and the protective cover are made of epoxy resin materials.
The utility model also provides a slope stability monitoring stock early warning system, including data processing server, LCD screen, unstability early warning ware and aforementioned slope stability monitoring stock, slope stability monitoring stock passes through light-duty travelling cable connection data collection station, data collection station with the data processing server is connected, the data processing server is arranged in handling the temperature data and the stress strain data of gathering in the data collection station, converts the stress strain data that record into the accumulative deformation volume.
Further, the data processing server is connected with the liquid crystal screen, and the liquid crystal screen is used for displaying the daily, monthly and annual accumulated deformation and the temperature of the surrounding rock and soil mass measured by the anchor rod.
Further, the data processing server is connected with the instability early warning device, and when the accumulated deformation and the temperature change range obtained by processing of the data processing server are larger than set values, the instability early warning device gives out early warning.
Furthermore, each part of the early warning system is powered by a solar panel.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model discloses a side slope stability monitoring stock, with the ingenious setting of fiber grating strain transducer and temperature sensor on the stock body of rod, make the monitoring stock have can monitor seasonal or perennial frozen soil side slope ground body temperature and side slope stress strain's function simultaneously, wherein adopt temperature self-compensating type fiber grating strain transducer to survey the stress strain who surveys the ground body around the stock, still need carry out temperature compensation's defect when having avoided ordinary stock monitoring stress strain, it is more convenient simple to make the measurement, can audio-visually reachs the monitoring result, and the temperature sensor who increases at the afterbody of stock, only carry out temperature monitoring to the temperature of side slope engineering ground body, and need not carry out temperature compensation to stress strain again, this monitoring stock realizes both can the error that the automatic compensation temperature brought to surveying meeting an emergency and can improve measuring accuracy again, realize monitoring the stable state's of side slope through monitoring side slope ground body temperature and side slope stress strain The purpose is to;
the utility model discloses set up fiber grating strain transducer and light-duty travelling cable in the inside through-hole of reserving of the stock body of rod, the installation and the construction of the stock of being convenient for, and avoid fiber grating strain transducer to be destroyed and light-duty travelling cable shrink fracture in low temperature environment under the adverse operating environment of side slope engineering in seasonality or perennial frozen soil area, can effectively increase its life, be fit for slope engineering geotechnical body temperature variation and the slope stress strain in monitoring seasonality or perennial frozen soil area more, it is low to have avoided soil body temperature around seasonality frozen soil or the perennial frozen soil area, operational environment is poor, cause the damage of each sensor on the stock, cause the unsafe problem of monitoring stock monitoring.
The utility model discloses set up temperature sensor at the stock afterbody and be provided with the safety cover on temperature sensor, avoid the damage of harder soil body to temperature sensor around the stock to the stock body of rod and the soil body space on every side is less during the use, set up temperature sensor in the afterbody of the stock body of rod and avoided the impaired inaccurate problem of detected data that causes of friction;
the utility model discloses with the setting of fiber grating strain transducer inside the stock body of rod, can detect the flat stress strain of stock this moment, it is inhomogeneous to avoid stock body of rod both sides atress, and the monitoring result that causes is inaccurate, problem that the early warning is untimely.
The utility model discloses combine the ground body temperature variation and the slope stress strain of the slope engineering of realization simultaneous monitoring seasonality or perennial frozen soil area with temperature measurement and survey stress strain, the slope engineering of having solved seasonality or perennial frozen soil area can only judge its stable state through survey stress or displacement, and the unsafe thing of early warning, judgement side slope stable state that can be more accurate avoids appearing judging inaccurately, dangerous accident that can appear to the side slope can not accomplish to prevent suffering from in the condition in advance like landslide etc..
Further, the utility model discloses still obtain a side slope stability monitoring stock early warning system, this early warning system can monitor the stock and convert the slope country rock stress strain deflection to accumulative deformation, when every day, every month, each annual accumulative deformation exceeds a definite value, early warning system will give the early warning suggestion, especially the temperature variation of the ground body of seasonality or many years frozen soil side slope can be monitored to the while, when temperature variation is undulant great, monitoring system can give the early warning, the suggestion staff takes interim reinforcement measure to the side slope, reduce the emergence of potential dangerous accident as far as possible.
Further, the utility model discloses utilizing solar panel to supply power to early warning system is to the improvement of power supply mode in the past, uses clean energy to reduce the pollution to the environment, for a resources are saved contribution one power.
Drawings
Fig. 1 is a schematic view of a slope stability monitoring anchor rod structure of the present invention;
FIG. 2 is an enlarged view of the head of the bolt body;
FIG. 3 is a sectional view taken along line I-I;
FIG. 4 is a temperature sensor diagram;
fig. 5 is a schematic diagram of an early warning system for slope stability monitoring anchor rod connection.
In the drawings: 1 is an anchor rod body; 2 is a fiber grating strain sensor; 3 is a temperature sensor; 4, a temperature sensor protective shell; 5 is a light mobile cable; 6 is a tray, 7 is a nut, and 8 is a data converter; 9 is a protective cover; 10 is a protective shell; 11 is a fiber grating demodulator; 12 is data converter interface B2; 13 is data converter interface a 2; 14 is a fiber grating strain sensor detector interface a 1; 15 is a fiber grating strain sensor detector interface B1; 16 is the section of the anchor rod body 1-1; 17 is a clamping groove, and 18 is the position of a temperature sensor base; 19 is a temperature sensor body; and 20, a temperature sensor base.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
The utility model provides a side slope stability monitoring stock, as shown in fig. 1, including the stock body of rod 1, fiber grating strain sensor 2, temperature sensor 3, data converter 8 and fiber grating demodulator 11, wherein temperature sensor 3 sets up the afterbody at the stock body of rod 1, temperature sensor 3 is connected the temperature that is used for monitoring the side slope with data converter 8, fiber grating strain sensor 2 sets up inside the stock body of rod 1, fiber grating strain sensor 2 is connected with fiber grating demodulator 11 and is used for monitoring side slope stress and meet an emergency, data converter 8 and fiber grating demodulator 11 set up the head at the stock body of rod 1.
As shown in fig. 2, the data converter 8 of the present invention is provided with a data converter interface a2 and a data converter interface B2, and the temperature sensor 3 is connected to the data converter interface a2 through a light-weight mobile cable 5; the fiber grating demodulator 11 is provided with a fiber grating demodulator interface a1, and the fiber grating strain sensor 2 is connected with the fiber grating demodulator 11 through a fiber grating demodulator interface a 1.
Preferably, the fiber grating strain sensor 2 is a temperature self-compensation fiber grating strain sensor;
preferably, the anchor rod body 1 is reserved with two holes, wherein one hole penetrates through the anchor rod body 1 for passing through a light mobile cable 5, and the light mobile cable 5 is connected with the temperature sensor 3 and the data converter interface A2; the other hole is used for installing the fiber bragg grating strain sensor 2, the diameter of the hole is slightly larger than that of the fiber bragg grating strain sensor, the light movable cable 5 and the fiber bragg grating strain sensor 2 are installed in the anchor rod body, the influence of severe environment of slope engineering in seasonal or perennial frozen soil areas on the light movable cable 5 and the fiber bragg grating strain sensor 2 can be monitored, the service life of the monitoring anchor rod is prolonged, and the accuracy of measured data is guaranteed.
As shown in fig. 3 and 4, a clamping groove 17 is formed in the tail of the anchor rod body 1, the temperature sensor 3 comprises a temperature sensor body 19 and a temperature sensor base 20, the temperature sensor base 20 is clamped in the clamping groove 17, the clamping groove 17 and the temperature sensor base 20 are identical in shape, the temperature sensor base 20 firstly extends into the clamping groove 17, then the temperature sensor base 20 rotates 90 degrees in the clamping groove 17, and at the moment, the position of the temperature sensor base 20 in the clamping groove 17 is shown in fig. 3, namely, the position of the temperature sensor base 18 on the section 16 of the anchor rod body 1-1.
Preferably, still be provided with a temperature sensor protective housing 4 on the temperature sensor body 19, temperature sensor protective housing 4 both can avoid temperature sensor 3 not hard up in the stock installation and can prevent that temperature sensor 3 from being damaged because of the construction is improper, guarantees to record comparatively accurate data.
When data monitored by the temperature sensor greatly change in a short time, a potential unstable sliding surface may exist on the slope; the temperature sensor can also judge the state of the soil body according to the temperature of the surrounding soil body monitored in real time, adjust the limit value set by early warning, give a prompt when the temperature changes rapidly, and remind workers of monitoring the stable state of the side slope in time.
Preferably, the head of the anchor rod body 1 is further provided with a tray 6, the tray 6 is connected with a nut 7, the nut 7 is further provided with a protective shell 10 and a protective cover 9, the protective shell 10 and the nut 7 are welded and fixed, and the protective cover 9 is in threaded connection with the protective shell 10; the protective shell 10 and the protective cover 9 are made of epoxy resin materials, and the protective shell 10 and the protective cover 9 are used for protecting the data converter 8 and the fiber grating demodulator 11 from being damaged in the anchor rod installation process.
Preferably, a spring is arranged at one end of the protective shell 10 connected with the protective cover 9, a tenon structure is arranged at the other end of the protective shell 10 to realize the opening and closing of the protective cover 9 and the protective shell 10, so that the data converter 8 and the fiber grating demodulator 11 are conveniently arranged inside the protective shell 10, and the data converter 8 and the fiber grating demodulator 11 are conveniently taken out for maintenance when the data converter 8 and the fiber grating demodulator 11 have faults; when the protective cover is opened, the protective cover 9 can be ejected out of the tenon structure arranged on the protective shell 10 by using the elastic force of the spring, so that the protective cover 9 is opened conveniently, and the spring is not easy to lose due to the connection of the protective cover 9.
Preferably, the data converter interface B2 and the fiber grating demodulator interface B1 are both connected to the early warning system through a lightweight mobile cable 5.
As shown in fig. 5, the utility model also provides a slope stability monitoring anchor rod early warning system, including data collection station, data processing server, LCD screen, unstability early warning ware and aforementioned slope stability monitoring anchor rod, slope stability monitoring anchor rod passes through light-duty travelling cable 5 and connects data collection station, and data collection station is connected with data processing server, and data processing server is used for handling the temperature data and the stress strain data of gathering in the data collection station, converts the stress strain that measures into the accumulative total deflection; the data processing server is connected with the liquid crystal screen and the instability early warning device, the liquid crystal screen is used for displaying the accumulated deformation of the stress strain of the slope surrounding rock every day, month and year and the temperature of the surrounding rock mass measured by the anchor rod, and the instability early warning device is used for giving out early warning when the accumulated deformation of the stress strain of the slope soil body every day, month and year and the temperature change range of the surrounding rock mass measured by the anchor rod, which are obtained by processing of the data processing server, are larger than a set value.
Preferably, the utility model discloses a solar panel provides the electric energy to early warning system, uses clean energy, has reduced the pollution to the environment.
The utility model discloses a concrete operating method of side slope stability monitoring stock who obtains as follows:
when the monitoring anchor rod is used, the monitoring anchor rod is firstly arranged at a specified position of a side slope and other supporting projects, and the monitoring anchor rod is placed for a period of time after being installed until the surrounding environment is stable;
then the temperature data measured by the temperature sensor 3 enters the data converter 7, the stress-strain data measured by the fiber grating strain sensor 2 enters the fiber grating demodulator 11, and the data converter 8 and the fiber grating strain sensor monitor 11 transmit the two data into the early warning system through the light movable cable 5;
the data acquisition unit of the early warning system acquires and transmits the slope rock-soil mass temperature data and the stress strain data to the data processing server, the data processing server processes the acquired data, and the processed data is displayed on the liquid crystal screen to obtain the stress strain accumulated deformation of the slope surrounding rock and the rock-soil mass temperature data every day, month and year, so that a worker can visually watch the data and monitor the slope accumulated deformation and the temperature change of the day, month and year in real time; the processed data enters a destabilization early warning device, and when the measured accumulated deformation and temperature reach a set critical value or the variation amplitude is larger than a set value, the destabilization early warning device can send out early warning.
Claims (10)
1. The side slope stability monitoring anchor rod is characterized by comprising an anchor rod body (1), wherein two through holes are reserved in the anchor rod body (1), one through hole penetrates through the anchor rod body (1) and is provided with a light mobile cable (5), the head of the light mobile cable (5) extends into the anchor rod body (1) is connected with a data converter (8), the tail end of the light mobile cable (5) is connected with a temperature sensor (3), and the temperature sensor (3) is arranged at the tail part of the anchor rod body (1); set up fiber grating strain transducer (2) in another through-hole, the head that the front end of fiber grating strain transducer (2) stretched into the stock body of rod (1) is connected with fiber grating demodulator (11), the tail end setting of fiber grating strain transducer (2) is in the stock body of rod (1) is internal, fiber grating strain transducer (2) are temperature self-compensating type fiber grating strain transducer.
2. A side slope stability monitoring anchor rod according to claim 1, wherein a clamping groove (17) is arranged at the tail of the anchor rod body (1), the temperature sensor (3) comprises a temperature sensor body (19) and a temperature sensor base (20), the temperature sensor base (20) is clamped in the clamping groove (17), a temperature sensor protective shell (4) is further arranged on the temperature sensor body (19), the temperature sensor protective shell (4) is hemispherical, and the temperature sensor protective shell (4) plays roles of heat preservation and damage prevention.
3. A slope stability monitoring anchor according to claim 1, wherein the data converter (8) is arranged at the head of the anchor rod body (1), the data converter (8) is provided with a data converter interface a2(13), the temperature sensor (3) is connected with the data converter interface a2(13) through a lightweight mobile cable (5) arranged inside the anchor rod body (1); the data converter (8) is also provided with a data converter interface B2(12), and the data converter interface B2(12) is connected with the early warning system through a light mobile cable (5).
4. A slope stability monitoring anchor according to claim 1, wherein the diameter of the through hole for the fibre grating strain sensor (2) is slightly larger than the diameter of the fibre grating strain sensor (2).
5. A slope stability monitoring anchor rod according to claim 1, wherein the fiber grating demodulator (11) is arranged at the head of the anchor rod body (1), the fiber grating demodulator (11) is provided with a fiber grating demodulator interface a1(14) and a fiber grating demodulator interface B1(15), and the fiber grating strain sensor (2) is connected with the fiber grating demodulator temperature self-compensation type fiber grating strain sensor (2) through the fiber grating demodulator interface a1 (14); the fiber grating demodulator interface B1(15) is connected with the early warning system through a light mobile cable (5).
6. A slope stability monitoring anchor according to any one of claims 4 or 5, wherein the head of the anchor rod body (1) is further provided with a tray (6), the tray (6) is connected with a nut (7), a protective shell (10) is welded and fixed on the nut (7), the protective shell (10) is in threaded connection with a protective cover (9), and the protective shell (10) and the protective cover (9) are made of epoxy resin materials.
7. The slope stability monitoring anchor rod early warning system is characterized by comprising a data acquisition unit, a data processing server, a liquid crystal display, a destabilization early warning device and the slope stability monitoring anchor rod of claim 1, wherein the slope stability monitoring anchor rod is connected with the data acquisition unit through a light mobile cable (5), the data acquisition unit is connected with the data processing server, and the data processing server is used for processing temperature data and stress strain data acquired by the data acquisition unit and converting the measured strain into accumulated deformation.
8. The slope stability monitoring anchor rod early warning system of claim 7, wherein the data processing server is connected with the liquid crystal screen, and the liquid crystal screen is used for displaying daily, monthly and yearly accumulated deformation and the temperature of the surrounding rock and soil mass measured by the anchor rod.
9. The slope stability monitoring anchor rod early warning system according to claim 7, wherein the data processing server is connected with the instability early warning device, and when the accumulated deformation and the temperature change range obtained by the processing of the data processing server are larger than set values, the instability early warning device gives out early warning.
10. The slope stability monitoring anchor rod early warning system of claim 7, wherein each component of the early warning system is powered by a solar panel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022480167.6U CN213336579U (en) | 2020-10-30 | 2020-10-30 | Slope stability monitoring anchor rod and anchor rod early warning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022480167.6U CN213336579U (en) | 2020-10-30 | 2020-10-30 | Slope stability monitoring anchor rod and anchor rod early warning system |
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| CN213336579U true CN213336579U (en) | 2021-06-01 |
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| CN202022480167.6U Active CN213336579U (en) | 2020-10-30 | 2020-10-30 | Slope stability monitoring anchor rod and anchor rod early warning system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646272A (en) * | 2022-02-27 | 2022-06-21 | 桂林电子科技大学 | Optical fiber deformation calculation method for anchoring landslide anchor rod and landslide early warning system |
| CN114689017A (en) * | 2022-04-07 | 2022-07-01 | 江西师范高等专科学校 | Intelligent monitoring and early warning device for geotechnical engineering slope |
| CN115183903A (en) * | 2022-07-25 | 2022-10-14 | 中国科学院西北生态环境资源研究院 | Miniature single channel temperature acquisition device |
| CN115262595A (en) * | 2022-08-24 | 2022-11-01 | 中建三局第三建设工程有限责任公司 | Novel assemble excavation supporting suitable for fine sand layer |
| CN116950701A (en) * | 2023-05-06 | 2023-10-27 | 中山大学 | Rock-soil anchoring measurement integrated monitoring device |
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2020
- 2020-10-30 CN CN202022480167.6U patent/CN213336579U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646272A (en) * | 2022-02-27 | 2022-06-21 | 桂林电子科技大学 | Optical fiber deformation calculation method for anchoring landslide anchor rod and landslide early warning system |
| CN114689017A (en) * | 2022-04-07 | 2022-07-01 | 江西师范高等专科学校 | Intelligent monitoring and early warning device for geotechnical engineering slope |
| CN114689017B (en) * | 2022-04-07 | 2023-05-05 | 江西师范高等专科学校 | Intelligent monitoring and early warning device for geotechnical engineering side slope |
| CN115183903A (en) * | 2022-07-25 | 2022-10-14 | 中国科学院西北生态环境资源研究院 | Miniature single channel temperature acquisition device |
| CN115262595A (en) * | 2022-08-24 | 2022-11-01 | 中建三局第三建设工程有限责任公司 | Novel assemble excavation supporting suitable for fine sand layer |
| CN116950701A (en) * | 2023-05-06 | 2023-10-27 | 中山大学 | Rock-soil anchoring measurement integrated monitoring device |
| CN116950701B (en) * | 2023-05-06 | 2024-03-26 | 中山大学 | Rock-soil anchoring measurement integrated monitoring device |
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