CN212432109U - Large-scale rock slope deformation precision monitoring early warning device - Google Patents
Large-scale rock slope deformation precision monitoring early warning device Download PDFInfo
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- CN212432109U CN212432109U CN202021484831.8U CN202021484831U CN212432109U CN 212432109 U CN212432109 U CN 212432109U CN 202021484831 U CN202021484831 U CN 202021484831U CN 212432109 U CN212432109 U CN 212432109U
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Abstract
The utility model discloses a large rock slope deformation precision monitoring and early warning device, which comprises a plurality of monitoring points arranged on the rock slope, wherein each monitoring point is provided with a monitoring unit and a data transmission and early warning device in signal connection with the monitoring unit; the monitoring unit and the data transmission early warning device are electrically connected with the power supply device; the monitoring unit is a sensor sensing device used for sensing deformation displacement between different rock stratums, and the deformation information of the rock stratums in the side slope is directly acquired through the sensor sensing device, so that the stability of the side slope can be accurately judged; the sensor sensing device is at least three stay wire displacement meters arranged and an inclination angle sensor matched with the stay wire displacement meters for use, and the reliability of data acquisition of the sensor sensing device is ensured by mutually checking the inclination angle sensor and the stay wire displacement meters. The utility model discloses implement simply, low cost, it is convenient to install, is convenient for extensively lay, has good economic nature and popularization nature.
Description
Technical Field
The utility model relates to a large-scale rock matter side slope deformation precision monitoring early warning device belongs to geological disasters monitoring early warning equipment technical field.
Background
With the rapid development of economic construction, in the process of highway construction in mountain areas, large rock slopes are inevitably encountered, and due to the fact that the rock slopes are complex in structure and high in vegetation attachment difficulty, a large amount of bedrocks on the slopes are exposed, and the problems of geological disasters such as deformation, collapse, falling rocks and landslide are easily caused, so that the operation safety and the personnel life safety of the highway are seriously threatened. Therefore, it is very necessary to give an early warning to geological disasters induced by rock slopes in time and take measures in advance
The renovation area of the rock slope is wide, the construction cost is high, the monitoring difficulty is large, in order to find out the disaster caused by the instability of the rock slope in time, all-round monitoring and early warning research needs to be carried out on the stability of the rock slope, today, the slope monitoring devices are diversified, and a plurality of automatic monitoring devices such as three-dimensional laser scanners, measuring robots, GPS methods and the like can be selected. The instability of the rock slope is started from the internal rock fracture, but a three-dimensional laser scanner mainly monitors the deformation information of the surface of the rock slope and then gradually reflects the deformation information to the internal rock stratum, and slope deformation cannot simultaneously judge the slope stability from the surface and the inside of the rock slope; the cost of the measuring robot is high mostly, and the measuring robot is difficult to popularize and apply widely; and the received signal of the GPS method is easily influenced by the terrain conditions of the monitored area, the measurement precision is low, and all-weather monitoring is difficult to realize.
Disclosure of Invention
In view of this, the utility model aims at providing a large-scale rock matter side slope deformation precision monitoring early warning device can overcome prior art's not enough.
The utility model aims at realizing through the following technical scheme:
a large rock slope deformation precise monitoring and early warning device comprises a plurality of monitoring points distributed on a rock slope, wherein each monitoring point is provided with a monitoring unit and a data transmission and early warning device in signal connection with the monitoring unit; the monitoring unit and the data transmission early warning device are electrically connected with the power supply device; the monitoring unit is a sensor sensing device used for sensing deformation displacement between different rock strata, and the sensor sensing device is at least three stay wire displacement meters and an inclination angle sensor matched with the stay wire displacement meters.
Mounting holes are formed in the rock slope surface, mounting frames are correspondingly arranged above the mounting holes, the mounting frames are arranged in two layers, the stay wire displacement meter is fixedly connected to the first layer of mounting frame, and the inclination angle sensor is fixed to the second layer of mounting frame; and an induction line is arranged in the mounting hole, one end of the induction line is fixedly connected to the bottom of the mounting hole, and the other end of the induction line is connected with the stay wire displacement meter.
The mounting frame is a steel sheet beam which is arranged in an upper layer and a lower layer and is parallel to the slope surface, two ends of the two steel sheet beams are provided with corresponding through holes, and a first fixing rod sequentially penetrates through the through holes of the two steel sheet beams to enable the two steel sheet beams to be fixedly connected on the slope surface; the stay wire displacement meter is fixedly connected to the first layer of steel sheet beam through a bolt, and the inclination angle sensor is fixed to the second layer of steel sheet beam through a bolt.
For each monitoring unit, at least three mounting holes are formed in the rock slope, each mounting hole is perpendicular to the rock stratum surface, and the aperture is 20-30 mm; and the distance between the adjacent mounting holes is 10-20 cm, wherein the first hole penetrates into the stable rock stratum by 20-30 cm, the second hole penetrates into 2/3 of the unstable rock stratum, and the third hole penetrates into 1/3 of the unstable rock stratum.
The bottom of the mounting hole is provided with a fixed steel bar, an inner sleeve is arranged in the mounting hole, and slurry is filled in the mounting hole to fixedly connect the inner sleeve and the fixed steel bar in the mounting hole; the induction wire is arranged in the inner sleeve in a penetrating mode and is fixed on the fixed steel bar through the fixing ring.
The center of the pull wire displacement meter is aligned with the center of the inner sleeve and the center of the induction wire, and the pull wire of the pull wire displacement meter is connected with the induction wire in a pre-stretching mode, so that the negative deformation value of the pull wire displacement meter is 1/3-1/2 of the maximum positive deformation value; the precision of the stay wire displacement meter sensing the deformation of the rock stratum is not more than 2mm, and the measuring range is 50 cm-100 cm.
The sensor induction device is characterized in that a protection box is arranged outside the sensor induction device, the protection box is fixed on a slope surface through a second fixing rod, a box door is arranged on the top surface of the protection box, and a handle is arranged on the box door.
The data transmission early warning device comprises a vertical rod fixedly connected to the slope surface through a base, a case is arranged on the vertical rod, a battery and a collection module are arranged in the case, an alarm is arranged on the outer top surface of the case, the collection module and the alarm are electrically connected with the battery, and the battery is connected with a power supply device.
The power supply device is a solar cell panel which is fixedly connected to the top end of the upright rod.
Compared with the prior art, the utility model discloses a large rock slope deformation precise monitoring and early warning device, which comprises a plurality of monitoring points arranged on the rock slope, wherein each monitoring point is provided with a monitoring unit and a data transmission early warning device in signal connection with the monitoring unit; the monitoring unit and the data transmission early warning device are electrically connected with the power supply device; the monitoring unit is a sensor sensing device used for sensing deformation displacement between different rock stratums, and the deformation information of the rock stratums in the side slope is directly acquired through the sensor sensing device, so that the stability of the side slope can be accurately judged; the sensor sensing device is at least three stay wire displacement meters arranged and an inclination angle sensor matched with the stay wire displacement meters for use, and the reliability of data acquisition of the sensor sensing device is ensured by mutually checking the inclination angle sensor and the stay wire displacement meters.
The utility model has the advantages that:
the utility model discloses implement simply, low cost, it is convenient to install, is convenient for extensively lay, can distribute a plurality of monitoring points during the use according to the needs of actual engineering on large-scale rock matter side slope, and every monitoring point monitors alone, and the data acquisition precision is high, and interference immunity is little, and reliability and durability are good, have good economic nature and popularization nature.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the monitoring unit in fig. 1.
Fig. 3 is a schematic perspective view of the monitoring unit.
Fig. 4 is a schematic view of the mounting structure of the stay wire displacement meter.
Fig. 5 is a schematic view of the mounting structure of the pull wire displacement meter of fig. 4.
Fig. 6 is a schematic view of the mounting structure of the protective box.
Fig. 7 is a schematic structural diagram of a data transmission early warning device.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 7, a large rock slope deformation precise monitoring and early warning device comprises a plurality of monitoring points arranged on a rock slope 1, wherein each monitoring point is provided with a monitoring unit 2 and a data transmission and early warning device 3 in signal connection with the monitoring unit 2; the monitoring device also comprises a power supply device 4 electrically connected with the monitoring unit 2 and the data transmission early warning device 3; the monitoring unit 2 is a sensor sensing device arranged in rock strata inside the rock slope, the sensor sensing device senses deformation displacement among different rock strata, and real-time data acquisition, data transmission and data monitoring alarm are carried out through a wireless network technology.
The sensor sensing device comprises at least three stay wire displacement meters 201 and an inclination angle sensor 202 matched with the stay wire displacement meters; the inclination angle sensor 202 can sense the inclination angle change of the rock stratum layer, and simultaneously, in combination with the stay wire displacement meters 201, two check pairs can be formed between the stay wire displacement meters 201 and between the inclination angle sensor 202 and the stay wire displacement meters 201. During installation, installing holes 101 are drilled on the slope surface of the large rock slope 1 according to requirements, installing frames 5 are correspondingly arranged above the installing holes 101, the installing frames 5 are arranged in two layers, a stay wire displacement meter 201 is fixedly connected to a first layer of installing frame 501, and an inclination angle sensor 202 is fixed to a second layer of installing frame 502; an induction line 203 is arranged in the mounting hole 101, one end of the induction line 203 is fixedly connected to the bottom of the mounting hole 101, and the other end of the induction line 203 is connected with the stay wire displacement meter 201.
The mounting hole 101 can be formed by a light drilling machine such as a blast hole drilling machine, a fixed steel bar 6 is arranged at the bottom of the mounting hole 101, an inner sleeve 7 is arranged in the mounting hole 101, the mounting hole 101 is filled with slurry 8, and the inner sleeve 7 and the fixed steel bar 6 can be fixedly connected in the mounting hole 101 after the slurry 8 is solidified; the induction wire 203 is threaded in the inner sleeve 7 and fixed on the fixed steel bar 6 by the fixing ring 9. The pull wire of the pull wire displacement meter 201 is aligned with the centers of the inner sleeve 7 and the induction wire 203, and the pull wire of the pull wire displacement meter 201 is well connected with the induction wire 203. The precision of the stay wire displacement meter 201 should meet the requirement of slope monitoring, the precision of sensing rock stratum deformation should not be greater than 2mm, the measuring range should be 50 cm-100 cm, and the stay wire displacement meter is specifically selected according to the possible deformation value of the slope. When the stay wire displacement meter 201 is installed, the stay wire displacement meter 201 is pre-stretched in the initial state, the stay wire displacement meter 201 can read out a negative deformation value, and the negative deformation value is preferably 1/3-1/2 of the maximum positive deformation value.
The mounting hole 101 is preferably vertical to the rock stratum layer, and the aperture is preferably 20 mm-30 mm; for each monitoring unit, at least three mounting holes are required to be formed in the rock slope 1, and the distance between every two adjacent mounting holes is preferably 10-20 cm; wherein the first hole 1011 penetrates 20-30 cm of the stable rock stratum, the second hole 1012 penetrates 2/3 of the unstable rock stratum, and the third hole 1013 penetrates 1/3 of the unstable rock stratum. The depth range of the unstable rock stratum can be determined by means of theoretical calculation, numerical simulation, engineering experience and the like.
The fixed steel bar 6 can be made of ∅ 8 # steel wires according to the size of the mounting hole 101.
The inner sleeve 7 is a PVC pipe, and the pipe diameter is preferably 8-12 mm.
The fixing ring 9 is preferably a steel ring, and is mainly used for stopping slurry and fixing the induction wire 203.
The induction line 203 is selected according to the type requirement of the stay wire displacement meter.
The grouting 8 is directly made of cement slurry and is injected from the orifice of the mounting hole 101, a trial penetration is needed before construction, and auxiliary materials can be added for treatment when slurry leakage is serious.
The mounting frame 5 is a steel sheet beam which is arranged in an upper layer and a lower layer and is parallel to the slope surface, two ends of the two steel sheet beams are provided with corresponding through holes 503, and a first fixing rod 10 sequentially penetrates through the through holes 503 of the two steel sheet beams to enable the two steel sheet beams to be fixedly connected to the slope surface. The stay wire displacement meter 201 is fixedly connected to the first layer of steel sheet beam through a bolt, and the inclination angle sensor 202 is fixed to the second layer of steel sheet beam through a bolt.
Sensor induction system outside is equipped with guard box 11, the bottom of the case of guard box 11 is equipped with guard box fixed orifices 1101 and the dress hole 1102 of wearing of dead lever 10, mounting bracket 5 sets up in guard box 11 to pass dress hole 1102 and make it fix on domatic by dead lever 10, simultaneously guard box 11 passes guard box fixed orifices 1101 by two No. two dead levers 12 and fixes on domatic, is equipped with chamber door 1103 on guard box 11 top surface, is equipped with handle 1104 on chamber door 1103.
The first fixing rod 10 can be a steel bar with the rod diameter of ∅ 18- ∅ 22, and can be adjusted according to the weight of the sensor; in order to meet the requirements of installation stability of the sensor and the steel sheet, the depth of the first fixing rod 10 driven into the slope surface is preferably 20-30 cm, and cement paste is adopted to enable the first fixing rod 10 to be fixed on the slope surface; in addition, the through hole 1102 at the bottom of the protection box 11 should be slightly larger than the first fixing rod 10, specifically, the case movement does not affect the first fixing rod 10 and the sensor shaking.
The second fixing rod 12 can be a steel bar with the rod diameter of ∅ 18- ∅ 22, so that the case can be completely supported; in order to meet the requirement for stable installation of the case, the depth of the second fixing rod 12 driven into the slope surface is preferably 20-30 cm, and cement paste is adopted to enable the second fixing rod 12 to be stable on the slope surface.
The power supply device 4 can be a solar cell panel, and is energy-saving and environment-friendly. The installation direction of the solar cell panel is suitable for ensuring that solar energy irradiates for a long time, can be determined as the north-south direction, and can be determined according to the comprehensive consideration of the position of a side slope during installation.
The data transmission early warning device 3 comprises a base 301, a vertical rod 302, a case 303, a battery 304, an acquisition module 305 and an alarm 306; the bottom end of the vertical rod 302 is fixedly connected to a slope surface through a base 301, the solar cell panel and the case 303 are fixedly connected to the upper end of the vertical rod 302, the battery 304 and the acquisition module 305 are arranged in the case 303, the alarm 306 is fixedly connected to the outer top surface of the case 303, the acquisition module 305 and the alarm 306 are electrically connected with the battery 304, and the battery 304 is connected with the solar cell panel.
Wherein, pole setting 302 height should be 1.2m ~1.8m, and through drilling and muddy earth construction base 301 with it firmly on domatic to satisfy and install quick-witted case 303 and the solar cell panel steadiness on pole setting 302, still should have the ability of anti-wind load simultaneously.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a large-scale rock matter side slope deformation precision monitoring early warning device which characterized in that: the device comprises a plurality of monitoring points arranged on a rock slope (1), wherein each monitoring point is provided with a monitoring unit (2) and a data transmission early warning device (3) in signal connection with the monitoring unit; the monitoring unit (2) and the data transmission early warning device (3) are electrically connected with the power supply device (4); the monitoring unit (2) is a sensor sensing device for sensing deformation displacement between different rock strata, and the sensor sensing device comprises at least three stay wire displacement meters (201) and an inclination angle sensor (202) matched with the stay wire displacement meters.
2. The large rock slope deformation precise monitoring and early warning device according to claim 1, characterized in that: the rock slope (1) is provided with mounting holes (101), mounting frames (5) are correspondingly arranged above the mounting holes (101), the mounting frames (5) are arranged in two layers, a stay wire displacement meter (201) is fixedly connected to a first layer of mounting frame (501), and an inclination angle sensor (202) is fixed to a second layer of mounting frame (502); an induction line (203) is arranged in the mounting hole (101), one end of the induction line (203) is fixedly connected to the bottom of the mounting hole (101), and the other end of the induction line is connected with the stay wire displacement meter (201).
3. The large rock slope deformation precise monitoring and early warning device according to claim 2, characterized in that: the mounting frame (5) is a steel sheet beam which is arranged in an upper layer and a lower layer and is parallel to the slope surface, two ends of the two steel sheet beams are provided with corresponding through holes (503), and a first fixing rod (10) sequentially penetrates through the through holes (503) of the two steel sheet beams to enable the two steel sheet beams to be fixedly connected to the slope surface; the stay wire displacement meter (201) is fixedly connected to the first layer of steel sheet beam through a bolt, and the inclination angle sensor (202) is fixed to the second layer of steel sheet beam through a bolt.
4. The large rock slope deformation precise monitoring and early warning device according to claim 2, characterized in that: for each monitoring unit, at least three mounting holes are formed in the rock slope (1), each mounting hole (101) is perpendicular to the rock stratum surface, the hole diameter is 20-30 mm, and the distance between every two adjacent mounting holes is 10-20 cm; wherein the first hole (1011) penetrates 20-30 cm of the stable rock stratum, the second hole (1012) penetrates 2/3 of the unstable rock stratum, and the third hole (1013) penetrates 1/3 of the unstable rock stratum.
5. The large rock slope deformation precise monitoring and early warning device according to claim 4, characterized in that: the bottom of the mounting hole (101) is provided with a fixed steel bar (6), the mounting hole (101) is internally provided with an inner sleeve (7), and the mounting hole (101) is filled with slurry (8) to ensure that the inner sleeve (7) and the fixed steel bar (6) are fixedly connected in the mounting hole (101); the induction wire (203) is arranged in the inner sleeve (7) in a penetrating way and is fixed on the fixed steel bar (6) through a fixing ring (9).
6. The large rock slope deformation precise monitoring and early warning device according to claim 5, characterized in that: the center of a pull wire of the pull wire displacement meter (201) is aligned with the center of the inner sleeve (7) and the center of the induction wire (203), the pull wire of the pull wire displacement meter (201) is connected with the induction wire (203) in a pre-stretching mode, and the negative deformation value of the pull wire displacement meter (201) is 1/3-1/2 of the maximum positive deformation value; the precision of the deformation of the rock stratum induced by the stay wire displacement meter (201) is not more than 2mm, and the measuring range is 50 cm-100 cm.
7. The large rock slope deformation precise monitoring and early warning device according to claim 1, characterized in that: sensor induction system outside is equipped with guard box (11), guard box (11) are fixed on domatic through No. two dead lever (12), are equipped with chamber door (1103) at guard box (11) top surface, are equipped with handle (1104) on chamber door (1103).
8. The large rock slope deformation precise monitoring and early warning device according to claim 1, characterized in that: data transmission early warning device (3) are including linking firmly pole setting (302) on domatic through base (301), are equipped with quick-witted case (303) on pole setting (302), are equipped with battery and collection module (305) in quick-witted case (303), are equipped with alarm (306) on quick-witted case (303) outer top surface, collection module (305), alarm (306) are connected with battery (304) electricity, and battery (304) link to each other with power supply unit (4).
9. The large rock slope deformation precise monitoring and early warning device according to claim 1 or 8, characterized in that: the power supply device (4) is a solar panel which is fixedly connected to the top end of the vertical rod (302).
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| CN202021484831.8U CN212432109U (en) | 2020-07-24 | 2020-07-24 | Large-scale rock slope deformation precision monitoring early warning device |
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| CN202021484831.8U CN212432109U (en) | 2020-07-24 | 2020-07-24 | Large-scale rock slope deformation precision monitoring early warning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114926961A (en) * | 2022-05-16 | 2022-08-19 | 桂林理工大学 | Landslide detection early warning device and method suitable for fault-containing rock slope |
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2020
- 2020-07-24 CN CN202021484831.8U patent/CN212432109U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114926961A (en) * | 2022-05-16 | 2022-08-19 | 桂林理工大学 | Landslide detection early warning device and method suitable for fault-containing rock slope |
| CN114926961B (en) * | 2022-05-16 | 2024-02-27 | 桂林理工大学 | Landslide detection early warning device and method suitable for fault-containing rock slope |
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