CN115597656A - Multi-parameter monitoring device and method for physical mechanics of rock soil outside deep hole of landslide - Google Patents
Multi-parameter monitoring device and method for physical mechanics of rock soil outside deep hole of landslide Download PDFInfo
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Abstract
The invention provides a physical and mechanical multi-parameter monitoring device and method for rock and soil mass outside a deep hole of a landslide, wherein a wheel disc recovery device is fixed on the landslide, the wheel disc recovery device comprises a support, a pulley assembly and a rope, the pulley assembly is rotatably arranged on the support, the rope is wound outside the pulley assembly, a guide rail is arranged in rock and soil, a sliding groove is arranged on the guide rail, two ends of the sliding groove extend to the end part of the guide rail, and the end part of the guide rail is connected with the rope; the plurality of node devices are movably arranged in the sliding groove and are sequentially and rotatably connected, and the side surfaces of the node devices are inwards concave to form mounting grooves; the tool bit device and the impact power device are arranged in the sliding chute and are respectively fixedly connected with the node device at the end part; the detection device comprises a temperature sensor, a soil pressure sensor, a pore water pressure sensor, a seismic oscillation sensor, a micro control unit and a main control unit which are respectively arranged in the mounting groove, wherein the sensors are respectively electrically connected with the micro control unit, and the main control unit is connected with the micro control unit and used for acquiring the physical and mechanical parameters of the rock and soil mass.
Description
Technical Field
The invention relates to the technical field of geological disaster monitoring, in particular to a landslide deep hole outside rock soil body physical and mechanical multi-parameter monitoring device and method.
Background
Landslide is an important geological disaster, and the occurrence of the landslide disaster has great threat to both personnel safety and economic environment. With the continuous expansion of the range and the scale of the human engineering activities, the frequency and the risk of landslide increase, and the harmfulness brought to the society is gradually increased. How to utilize the modern monitoring technology to carry out effective and comprehensive monitoring on the landslide is the key of landslide early warning and reduction of property loss and casualties.
The multi-field coupling effect is the internal power of landslide development and evolution, and determines the complexity and diversity of landslide geological disasters. By monitoring multi-field information such as a seepage field, a displacement field, a stress field, a temperature field, an electromagnetic field and the like, a multi-field information characteristic parameter monitoring method technology is established, is a key for revealing a landslide evolution mechanism and realizing effective and comprehensive landslide monitoring, and is a necessary way for achieving accurate early warning of landslide disasters. The method comprises the steps that a traditional monitoring mode is that one or two places are searched for and provided with rock-soil body physical and mechanical parameter sensors in a landslide monitoring area, wherein one mode is that after a rock-soil body is excavated, the rock-soil body physical and mechanical parameter sensors are embedded into a soil body and then backfilled, the landslide soil body is greatly disturbed by the mode, monitoring data are difficult to truly reflect the physical and mechanical parameter change of the rock-soil body at the deep part of the landslide, and the monitoring cost is increased along with the increase of the embedding depth requirement; the other monitoring mode is to punch and embed in the landslide, and the mode can only monitor the change of the physical and mechanical parameters of the rock and soil mass in the local area of the landslide. Therefore, the traditional monitoring mode cannot spatially correlate the physical and mechanical parameters of the landslide rock and soil mass with the change of the whole landslide area along with time, so that the landslide occurrence is difficult to judge in advance.
Disclosure of Invention
In view of this, the embodiment of the invention provides a landslide deep borehole rock-soil body physical mechanics multi-parameter monitoring device and method, aiming at realizing the meshing full coverage of the rock-soil physical mechanics multi-field parameter monitoring in the whole landslide region so as to perform spatial correlation between the change of the landslide rock-soil body physical mechanics parameter along with time and the whole landslide region.
The embodiment of the invention provides a landslide deep hole outside rock soil body physical mechanics multi-parameter monitoring device, which comprises:
the wheel disc recovery device is fixedly arranged on a landslide and comprises a support, a pulley assembly and a rope, wherein the pulley assembly is rotatably arranged on the support, and the rope is wound outside the pulley assembly to have an extending and recovering movable stroke;
the guide rail is arranged in the rock soil, a sliding groove is formed in the guide rail and comprises a vertical guide groove and a horizontal guide groove which are communicated, two ends of the sliding groove extend to the end part of the guide rail, and the end part of the guide rail is connected with the rope;
the plurality of node devices are movably arranged in the sliding groove and are sequentially and rotatably connected, and one side surface of each node device is inwards provided with an installation groove in a concave manner;
the cutter head device is arranged in the sliding chute and is fixedly connected with the node device at one end part;
the impact power device is arranged in the sliding groove and is fixedly connected with the node device at the other end part so as to drive the node device to move; and the number of the first and second groups,
the detection device comprises a plurality of temperature sensors, soil pressure sensors, pore water pressure sensors, seismic oscillation sensors and micro control units which are arranged in the mounting grooves respectively, and a main control unit arranged outside the detection device, wherein the temperature sensors, the soil pressure sensors, the pore water pressure sensors and the seismic oscillation sensors are electrically connected with the micro control units respectively, and the main control unit is connected with the micro control units through a CAN (controller area network) bus and used for acquiring physical and mechanical parameters of a rock and soil body.
Optionally, an arc guide groove is further arranged between the vertical guide groove and the horizontal guide groove.
Optionally, the node means and the tool bit means are both made of stainless steel.
Optionally, the impact power device is an impact hammer.
Optionally, a plurality of the node devices are connected through a cylindrical pin.
Optionally, the solar energy detection device further comprises a solar cell panel and an electrical box, wherein a rechargeable battery, a main control panel and a solar charger are installed in the electrical box, the solar charger is connected with the solar cell panel, and the electrical box is electrically connected with the detection device.
The invention also provides a landslide deep hole outside rock soil body physical mechanics multi-parameter monitoring method, which is based on the landslide deep hole outside rock soil body physical mechanics multi-parameter monitoring device and comprises the following steps:
s1, acquiring physical mechanical parameters of rock and soil masses at different depths of a landslide monitoring area based on different positions of the detection device, wherein the physical mechanical parameters of the rock and soil masses comprise deep soil pressure data, deep pore water pressure data, deep soil body temperature data and deep seismic data, and transmitting the data to a main control unit through a CAN bus;
s2, based on the physical and mechanical parameters of the rock and soil mass at different depths acquired by the detection device, summarizing data through the main control unit, adding corresponding depth parameters into a sending head, and transmitting the parameters to a server through a network for storage;
s3, transmitting data in the server to a computer or a mobile phone terminal in real time for checking, and preliminarily judging whether landslide occurs or not according to a slope stability coefficient value in a prediction model, wherein the prediction model is as follows:
L＝E0/E max *α1+u/u max *α2+T/T max *α3+MS/MS max *α4；
where EO is the value measured by the soil pressure sensor, E max Is the soil pressure threshold value, u is the numerical value measured by the pore water pressure sensor, u is the soil pressure threshold value max Is the pore water pressure threshold, T is the value measured by the temperature sensor, T max Is the soil body temperature threshold value, and MS is seismic oscillationValue measured by the sensor, MS max The earthquake motion threshold value is defined as alpha 1, alpha 2, alpha 3 and alpha 4, which are corresponding weight coefficients, and L is a slope stability coefficient;
s4, if the landslide occurs, sending an early warning signal, and if the landslide does not occur, executing the following steps;
s5, setting an artificial intelligence algorithm in the server, performing statistical analysis on all acquired physical and mechanical parameter data of the rock and soil, and establishing a corresponding relation between a soil pressure value and a depth
Corresponding relation between pore water pressure value and depth
Corresponding relation between soil body temperature and depth
Corresponding relation between seismic oscillation and depth
Then based on the prediction model
It should be noted that, in the above correspondence, h is the depth, and LH is the slope stability coefficient of the corresponding depth.
Optionally, the landslide deep hole external rock-soil body physical mechanics multi-parameter monitoring device further comprises a data sending device and an early warning device which are electrically connected with the main control unit, wherein the data sending device is used for sending early warning signals obtained by analysis of the main control unit to the early warning device.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: according to the landslide deep hole external rock soil body physical mechanics multi-parameter monitoring device, the plurality of node devices are sequentially and rotatably connected and placed in the sliding groove of the guide rail, continuous vertical downward impact force is provided for the node devices and the cutter head device by the impact power device, the impact force is applied to the tail end of the last node device and is transmitted to the cutter head device through the node devices, and the node devices and the cutter head device are forced to move into the landslide deep rock soil body. The spout provides the guide path for tool bit device and node device, it is internal that the tool bit device of being convenient for enters into the ground, the spout includes vertical guide slot and horizontal guide slot simultaneously, after the tool bit device of being convenient for descends to certain degree of depth, trun into the horizontal direction and enter into horizontal guide slot in, under continuous impulsive force effect, continue to the internal activity of ground, thereby make node device fix in the predetermined degree of depth, and then fix detection device and detect the ground body physical mechanics parameter who obtains in the different predetermined degree of depth in the predetermined degree of depth.
Drawings
FIG. 1 is a schematic vertical structure diagram of an embodiment of a physical-mechanical multi-parameter monitoring device for rock and soil mass outside a deep hole of a landslide, provided by the invention;
FIG. 2 is a schematic horizontal structure diagram of an embodiment of the multi-parameter monitoring device for physical mechanics of rock-soil mass outside a deep hole of a landslide, provided by the invention;
FIG. 3 is a schematic illustration of the installation of the wheel disc recovery unit, guide rails, node means, cutter head means and impact power means of FIG. 1;
FIG. 4 is a schematic view of the bit device of FIG. 3 in a position for entry into the earthen body;
FIG. 5 is a schematic flow diagram of a multi-parameter monitoring method for physical mechanics of rock mass outside a deep hole of a landslide, provided by the invention.
In the figure: the landslide deep hole external rock soil body physical mechanics multi-parameter monitoring device 100, the wheel disc recovery device 1, the support 11, the pulley assembly 12, the rope 13, the guide rail 2, the sliding groove 21, the vertical guide groove 211, the horizontal guide groove 212, the arc guide groove 213, the node device 3, the tool bit device 4, the impact power device 5, the detection device 6, the temperature sensor 61, the soil pressure sensor 62, the pore water pressure sensor 63, the earthquake motion sensor 64, the solar cell panel 7, the electric box 8 and the rock and soil body 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, a physical-mechanical multi-parameter monitoring device 100 for a rock-soil body outside a deep hole of a landslide according to an embodiment of the present invention includes a wheel disc recovery device 1, a guide rail 2, a plurality of node devices 3, a cutter head device 4, an impact power device 5, and a detection device 6. The wheel disc recovery device 1 is fixedly arranged on a landslide, the wheel disc recovery device 1 comprises a support 11, a pulley assembly 12 and a rope 13, the pulley assembly 12 is rotatably arranged on the support 11, and the rope 13 is wound outside the pulley assembly 12 to have an extending and recovering movable stroke; the guide rail 2 is arranged in the rock soil, a sliding groove 21 is arranged on the guide rail 2, the sliding groove 21 comprises a vertical guide groove 211 and a horizontal guide groove 212 which are communicated, two ends of the sliding groove 21 extend to the end part of the guide rail 2, and the end part of the guide rail 2 is connected with the rope 13; the plurality of node devices 3 are movably arranged in the sliding groove 21, the plurality of node devices 3 are sequentially connected in a rotating manner, and one side surface of each node device 3 is inwards provided with an installation groove in a concave manner; the cutter head device 4 is arranged in the sliding groove 21, and the cutter head device 4 is fixedly connected with the node device 3 at one end part; the impact power device 5 is arranged in the sliding groove 21, and the impact power device 5 is fixedly connected with the node device 3 at the other end part so as to drive the node device 3 to move; and the detection device 6 comprises a plurality of temperature sensors 61, a soil pressure sensor 62, a pore water pressure sensor 63, a seismic oscillation sensor 64, a Micro Control Unit (MCU) and a main control unit arranged outside, wherein the temperature sensors 61, the soil pressure sensor 62, the pore water pressure sensor 63 and the seismic oscillation sensor are respectively and electrically connected with the micro control unit, and the main control unit is connected with the micro control unit through a CAN bus and used for acquiring physical and mechanical parameters of the rock and soil mass.
Through fixing rim plate recovery unit 1 on locating the landslide, utilize rope 13 and guide rail 2's end fixing, can put into the position of vertical brill knot interior appointed degree of depth with monitoring devices (including tool bit device 4, node device 3 and detection device 6), through applying certain pretightning force for rope 13 this moment, make whole monitoring devices remain motionless at appointed degree of depth, wait for tool bit device 4 and a plurality of node device 3 to enter into the deep ground body 9 of landslide after, pull back guide rail 2 and impact force device to ground again, retrieve.
Through rotating a plurality of node devices 3 in proper order to connect and place in the spout 21 of guide rail 2, utilize impact power device 5 to provide continuous vertical downward impact force for node device 3 and tool bit device 4, apply on the tip of last node device 3, pass through node device 3 and transmit again on tool bit device 4 for node device 3 and tool bit device 4 atress move to landslide depth ground body 9. The chute 21 provides a guide path for the tool bit device 4 and the node device 3, the tool bit device 4 conveniently enters the rock-soil body 9, the chute 21 comprises a vertical guide groove 211 and a horizontal guide groove 212, the tool bit device 4 conveniently descends to a certain depth and then turns to enter the horizontal guide groove 212 in the horizontal direction, and under the action of continuous impact force, the tool bit device continues to move in the rock-soil body 9, so that the node device 3 is fixed in the preset depth, and the detection device 6 is fixed in the preset depth to detect and acquire physical and mechanical parameters of the rock-soil body in different preset depths.
Through setting up detection device 6 respectively at the different degree of depth to realize that the regional ground physical mechanics of landslide many field parameter monitoring of whole landslide covers entirely, carry out the space association with the regional change of landslide ground physical mechanics parameter along with time, make more accurate judgement to whether the landslide is made through the detected data that acquires.
The landslide deep monitoring device provided by the invention can place the monitoring sensor into the landslide at a specified depth, does not disturb the landslide body, improves the authenticity of monitoring physical and mechanical parameters of the soil body, can realize 'one hole multiple measurement' of landslide monitoring, and provides a method for the time-space correlation of landslide monitoring data.
Further, an arc guide groove 213 is further disposed between the vertical guide groove 211 and the horizontal guide groove 212. The arc guide groove 213 plays a role in transition guiding, so that the cutter head device 4 and the node device 3 can enter the horizontal guide groove 212 from the vertical guide groove 211 more conveniently, and the steering is smoother.
Further, the node device 3 and the tool bit device 4 are made of stainless steel. The stainless steel material has the effects of preventing corrosion and rusting, and can ensure sufficient strength and hardness to prevent damage in the penetration process. The front end of the cutter head device 4 is designed to be conical, so that the contact surface between the cutter head device and the rock-soil body 9 is reduced, the pressure intensity is increased, and the cutter head device can more easily enter the landslide rock-soil body 9 under the constant thrust action.
Through set up the mounting groove in node device 3 side, be convenient for lay the power supply line and the signal line of sensor, lay temperature sensor 61, space water pressure sensor, soil pressure sensor 62 respectively on each node device 3. The seismic oscillation sensors 64 and the Micro Control Unit (MCU) ensure that the sensors can be in contact with the rock-soil body 9 after the node device 3 enters the rock-soil body 9, obtain physical and mechanical parameters of the rock-soil body, provide original data for landslide monitoring, simultaneously, the mounting grooves can also protect the sensors from being damaged in the leading-in process, and mounting space is provided for mounting the sensors.
Specifically, in the embodiment, the impact power device 5 is an impact hammer, and other power devices may be used to provide continuous impact force. The plurality of node devices 3 are connected through cylindrical pins, and the plurality of node devices 3 are connected through the cylindrical pins and can rotate, so that the node devices can turn when entering the horizontal guide groove 212 from the vertical guide groove 211, and the cylindrical pins are simple in connection mode and convenient to install. In other embodiments, the rotation connection may be performed by other hinge or pivot modes, which are not described herein.
Further, still include solar cell panel 7 and electric box 8, install rechargeable battery, main control panel and solar charger in the electric box 8, the solar charger with solar cell panel 7 is connected, electric box 8 with detection device 6 electricity is connected. The solar panel 7 is arranged to provide power for the whole detection device 6, the solar panel 7 is used for charging and storing electricity for the rechargeable battery, and the rechargeable battery is used for supplying power for the detection device 6.
Referring to fig. 5, the invention further provides a landslide deep hole out-of-hole rock mass physical mechanics multi-parameter monitoring method, which is based on the landslide deep hole out-of-hole rock mass physical mechanics multi-parameter monitoring device 100, and includes the following steps:
s1, acquiring physical mechanical parameters of rock and soil masses at different depths in a landslide monitoring area based on different positions of the detection device 6, wherein the physical mechanical parameters of the rock and soil masses comprise deep soil pressure data, deep pore water pressure data, deep soil body temperature data and deep seismic data, and transmitting the data to a main control unit through a CAN (controller area network) bus;
s2, summarizing data through the main control unit based on the physical and mechanical parameters of the rock and soil mass at different depths acquired by the detection device 6, adding corresponding depth parameters into a sending head, and transmitting the data to a server through a network for storage;
s3, transmitting data in the server to a computer or a mobile phone terminal in real time for checking, and preliminarily judging whether landslide occurs or not according to a slope stability coefficient value in a prediction model, wherein the prediction model is as follows:
L＝E0/E max *α1+u/u max *α2+T/T max *α3+MS/MS max *α4；
where EO is a value measured by the soil pressure sensor 62, E max Is the soil pressure threshold value, u is the value measured by the pore water pressure sensor 63, u max Is the pore water pressure threshold, T is the value measured by the temperature sensor 61, T max Is the soil temperature threshold, MS is the value measured by the seismic sensor 64, MS max The earthquake motion threshold value is defined as alpha 1, alpha 2, alpha 3 and alpha 4, which are corresponding weight coefficients, and L is a slope stability coefficient;
s4, if the landslide occurs, sending an early warning signal, and if the landslide does not occur, executing the following steps;
s5, through the serverSetting artificial intelligent algorithm, statistical analysis of all the obtained physical and mechanical parameters, and establishing the corresponding relation between soil pressure and depth
Corresponding relation between pore water pressure value and depth
Corresponding relation between soil body temperature and depth
Corresponding relation between seismic oscillation and depth
Then based on the prediction model
Further, the landslide deep borehole rock mass physical mechanics multi-parameter monitoring device 100 further comprises a data sending device and an early warning device which are electrically connected with the main control unit, wherein the data sending device is used for sending early warning signals obtained by analysis of the main control unit to the early warning device. Here, the early warning device can be an alarm and remind through sound, and can also be a vibrator or a light controller and remind through vibration or different colors of light.
The landslide deep rock-soil body physical mechanics multi-parameter monitoring method provided by the invention has the advantages of high automation degree, low labor consumption and no regional limitation, and improves the accuracy and response time of landslide prediction.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a landslide deep hole outer rock soil body physical mechanics multi-parameter monitoring devices which characterized in that includes:
the wheel disc recovery device is fixedly arranged on a landslide and comprises a support, a pulley assembly and a rope, wherein the pulley assembly is rotatably arranged on the support, and the rope is wound outside the pulley assembly to have an extending and recovering movable stroke;
the guide rail is arranged in the rock soil, a sliding groove is formed in the guide rail and comprises a vertical guide groove and a horizontal guide groove which are communicated with each other, two ends of the sliding groove extend to the end part of the guide rail, and the end part of the guide rail is connected with the rope;
the plurality of node devices are movably arranged in the sliding groove and are sequentially and rotatably connected, and one side surface of each node device is inwards provided with an installation groove in a concave manner;
the cutter head device is arranged in the sliding chute and is fixedly connected with the node device at one end part;
the impact power device is arranged in the sliding groove and is fixedly connected with the node device at the other end part so as to drive the node device to move; and the number of the first and second groups,
the detection device comprises a plurality of temperature sensors, soil pressure sensors, pore water pressure sensors, seismic oscillation sensors and micro control units which are arranged in the mounting grooves respectively, and a main control unit arranged outside the detection device, wherein the temperature sensors, the soil pressure sensors, the pore water pressure sensors and the seismic oscillation sensors are electrically connected with the micro control units respectively, and the main control unit is connected with the micro control units through a CAN (controller area network) bus and used for acquiring physical and mechanical parameters of a rock and soil body.
2. The landslide deep borehole rock mass physical mechanics multi-parameter monitoring device of claim 1, further comprising an arc guide channel between the vertical guide channel and the horizontal guide channel.
3. The landslide deep hole external rock-soil physical mechanics multi-parameter monitoring device of claim 1, wherein the node means and the cutter head means are made of stainless steel.
4. The landslide deep hole external rock-soil body physical mechanics multi-parameter monitoring device of claim 1, wherein the impact power device is an impact hammer.
5. The landslide deep hole external rock-soil body physical mechanics multi-parameter monitoring device of claim 1, wherein a plurality of the node devices are connected through cylindrical pins.
6. The landslide deep extrahole rock-soil body physical-mechanics multi-parameter monitoring device of claim 1, further comprising a solar cell panel and an electrical box, wherein a rechargeable battery, a main control panel and a solar charger are installed in the electrical box, the solar charger is connected with the solar cell panel, and the electrical box is electrically connected with the detection device.
7. A landslide deep hole outer rock soil physical mechanics multi-parameter monitoring method is characterized in that based on the landslide deep hole outer rock soil physical mechanics multi-parameter monitoring device as claimed in any one of claims 1 to 6, the method comprises the following steps:
s1, acquiring physical mechanical parameters of rock and soil masses at different depths of a landslide monitoring area based on different positions of the detection device, wherein the physical mechanical parameters of the rock and soil masses comprise deep soil pressure data, deep pore water pressure data, deep soil body temperature data and deep seismic data, and transmitting the data to a main control unit through a CAN bus;
s2, summarizing data through the main control unit based on the physical and mechanical parameters of the rock and soil mass at different depths acquired by the detection device, adding corresponding depth parameters into a sending head, and transmitting the depth parameters to a server through a network for storage;
s3, transmitting data in the server to a computer or a mobile phone terminal in real time for checking, and preliminarily judging whether landslide occurs according to a slope stability coefficient value in a prediction model, wherein the prediction model is as follows:
L＝E0/E max *α1+u/u max *α2+T/T max *α3+MS/MS max *α4；
where EO is the value measured by the soil pressure sensor, E max Is the soil pressure threshold value, u is the numerical value measured by the pore water pressure sensor, u is the soil pressure threshold value max Is the pore water pressure threshold, T is the value measured by the temperature sensor, T max Is the soil body temperature threshold value, MS is the numerical value measured by the seismic sensor, MS max The earthquake motion threshold value is defined as alpha 1, alpha 2, alpha 3 and alpha 4, which are corresponding weight coefficients, and L is a slope stability coefficient;
s4, if the landslide occurs, sending an early warning signal, and if the landslide does not occur, executing the following steps;
s5, setting an artificial intelligence algorithm in the server, performing statistical analysis on all acquired physical and mechanical parameter data of the rock and soil, and establishing a corresponding relation between a soil pressure value and a depth
Corresponding relation between pore water pressure value and depth
Temperature and depth of soilDegree corresponding relation
Corresponding relation between seismic oscillation and depth
Then based on the prediction model
8. The landslide deep hole outer rock soil body physical mechanics multi-parameter monitoring method according to claim 7, wherein the landslide deep hole outer rock soil body physical mechanics multi-parameter monitoring device further comprises a data sending device and an early warning device electrically connected with the main control unit, and the data sending device is used for sending an early warning signal obtained by analysis of the main control unit to the early warning device.
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| JP2002250037A (en) * | 2001-02-27 | 2002-09-06 | East Japan Railway Co | Slope collapse detecting device |
| US20110253401A1 (en) * | 2010-04-15 | 2011-10-20 | Arno Kinnen | Hand-Guided Work Apparatus |
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