CN214793281U - Multi-depth rock-soil moisture content and inclination combined probe and geological disaster monitoring equipment - Google Patents

Abstract

The utility model relates to a many degree of depth ground moisture content, slope combination probe and geological disaster monitoring facilities, the probe includes the pipy casing of circle, be equipped with insulating support column along its axis in the casing, the length of support column is less than the length of casing, it is equipped with two barrel electrode, two to overlap along the axial fixity cover on the support column the barrel electrode is positive pole and negative pole respectively, two leave the interval between the barrel electrode, geological disaster monitoring facilities includes a plurality of probe and a conical head, a plurality of the connection can be dismantled to vertical coaxial in proper order to the probe is located the bottom of probe with the connection can be dismantled to the top is coaxial of conical head. Geological disaster monitoring equipment integrates the functions of water content monitoring and inclination angle monitoring, can realize simultaneous monitoring of the water content and the inclination angle of rock-soil bodies with different depths by a single rod, and solves the problems that the existing equipment can only monitor one depth, has large disturbance on peripheral rock-soil bodies, and is poor in monitoring precision.

Description

Multi-depth rock-soil moisture content and inclination combined probe and geological disaster monitoring equipment

Technical Field

The utility model relates to a many degree of depth ground moisture content, slope combination probe and geological disaster monitoring facilities belongs to geological disaster monitoring technology field.

Background

The land features of the hills in China are large in distinguishing area, strong in geological structure effect, high in rock weathering degree, large in thickness of surface soil (similar soil) parts of the hills, common in slope cutting and building phenomena of residents, poor in stability of slopes with high and steep soil (similar soil) instability, and prone to collapse, landslide and other geological disasters under the influence of rainfall, and most of the geological disasters occur in the hilly areas in the south of China. Most of geological disasters caused by the high and steep unstable slopes with soil texture (soil-like texture) have the characteristics of small scale, unobvious deformation signs, strong burst property and the like, are mainly induced by rainfall, are usually subjected to instant completion from deformation starting to collapse to slope toe by a rain fall, and have short deformation process. At present, the method plays little role in monitoring the simple displacement of the geological disasters, and the geological disasters are always cracked and slipped down after the reaction is not time to come. The geological disasters are mainly influenced by infiltration of rainfall, the water content of soil on the surface layer of the slope is increased, the volume weight is increased, the shear strength is reduced, the stability of the side slope is relatively deteriorated, and further collapse and landslide geological disasters are generated, so that the change of the water content of the soil on the slope directly influences the change of the physical and mechanical properties of the soil, the stable state and the degree of the slope can be judged by monitoring the water content, and early warning and forecasting are realized; by combining rainfall monitoring, the slope instability critical water content and the rainfall can be analyzed and researched according to long-term observation data, and meanwhile, the slope rainfall influence depth can be analyzed and researched, so that key data are provided for research on the cause mechanism of the (similar) soil quality high-steep unstable slope geological disaster, and the geological disaster management design can be more scientific and optimized.

The monitoring of the geological disasters of the high and steep unstable slope of the soil quality (soil-like quality) needs to monitor multiple parameters such as the water content of soil bodies at different depths, soil layer inclination angles and the like simultaneously, a traditional single water content monitoring device can only monitor one depth and one parameter of the soil body generally, in practical application, a plurality of different monitoring devices are needed to work in a matched mode, the device usage amount is large, and the occupied area is large. In addition, the conventional monitoring device has the following disadvantages: (1) most of the soil bodies are of probe-type structures, the volume is large, deep soil bodies are inconvenient to install, the soil bodies are usually installed after being dug manually to a set depth, disturbance to peripheral soil bodies is large, and most of monitoring data have large deviation from actual data; (2) the device is mainly used for soil moisture content measurement of agriculture and forestry, and is not suitable for mountain drilling installation; (3) most cables are directly connected and are not provided with cable protection structures, so that the multi-node monitoring of deep soil layers is inconvenient; (4) because the probes form electrodes, an electric field is concentrated between the probes, the effective soil body has smaller measurement volume and low detection sensitivity; (5) the probe is in direct contact with the soil body, so that the durability and the waterproofness are not strong; (6) the soil parameters at different depths cannot be monitored simultaneously.

SUMMERY OF THE UTILITY MODEL

For overcoming the above-mentioned defect of prior art, the utility model provides a many degree of depth ground moisture content, slope combination probe and geological disasters monitoring facilities can monitor simultaneously to a plurality of parameters of the different degree of depth soil body. The utility model discloses with present tubular sensor (being abbreviated as "tubular") on the market, traditional pin type sensor (being abbreviated as "needle") performance contrast as follows.

By showing, the utility model discloses monitoring facilities has solved the problem of the unable different degree of depth moisture content of multi-point monitoring of traditional single moisture content monitoring facilities, and for moisture content, inclination multi-parameter combination formula probe, can monitor a plurality of parameters simultaneously, all is superior to above-mentioned two kinds of traditional sensors on each item monitoring index.

The utility model discloses realize above-mentioned purpose's technical scheme is: many degree of depth ground moisture content, slope combination probe, including the tubulose casing of circle, be equipped with insulating support column along its axis in the casing, the length of support column is less than the length of casing, its radial outer wall (lateral surface) with leave the interval between the inner wall of casing, it is equipped with two cylindric electrodes, two to follow the axial fixity cover on the support column the cylindric electrode is positive pole and negative pole respectively, two leave the interval between the cylindric electrode.

The support column can be cylindrical or cuboid-shaped, and the cylindrical electrode is provided with a shaft hole matched with the support column in shape along the axis of the cylindrical electrode.

The shell can be made of pressure-resistant, waterproof and corrosion-resistant plastic or metal materials, and is preferably made of PVC-U pipes.

Preferably, the cylindrical electrodes are cylindrical, an annular protrusion protruding radially outwards is arranged on a support column between the two cylindrical electrodes, the two cylindrical electrodes are respectively located on two sides of the annular protrusion, and the diameter of the annular protrusion is not smaller than the outer diameter of the cylindrical electrodes.

Preferably, the two ends of the supporting column are respectively provided with a supporting disk which is concentric with and vertical to the supporting column, and the radial outer edge of the supporting disk is fixedly connected with the inner wall of the shell in a sealing manner.

Preferably, a sealing glue is filled between the supporting disc and the end part of the shell on the same side.

Preferably, the support column, the annular bulge and the support body formed by the support disc are of a hollow structure, a conductive metal layer is arranged on the inner surface of the support body, and the conductive metal layer covers the whole inner surface area of the support body to form an electric shielding layer between the inner space and the outer space of the support body.

The conductive metal layer may be formed by plating zinc or silver on the inner surface of the support.

Preferably, a temperature sensor is arranged in the shell.

The temperature sensor is preferably mounted on either of the two cylindrical electrodes to facilitate thermal conductivity acquisition.

Preferably, a three-axis acceleration sensor or a tilt sensor is arranged in the shell.

Geological disaster monitoring facilities, including a plurality of monitor and a conical head, monitor adopts the utility model discloses an arbitrary many degree of depth ground moisture content, slope combination probe, a plurality of monitor is vertical coaxial in proper order can dismantle the connection, is located the below monitor's bottom with the coaxial connection of dismantling in top of conical head.

Preferably, the detachable connection mode is that the corresponding connection ends of the two mutually connected monitoring probes are respectively in threaded connection with the two ends of the same connecting sleeve, and the bottom end of the monitoring probe positioned at the lowest part and the top end of the conical head are respectively in threaded connection with the two ends of the same connecting sleeve.

Furthermore, be equipped with the same external screw thread on the both ends outer wall of monitor's casing and the top outer wall of cone, be equipped with respectively on adapter sleeve's the both ends inner wall with external screw thread matched with internal thread, monitor with adapter sleeve and cone with adapter sleeve passes through matched with external screw thread and female connection.

Preferably, the lengths of the plurality of monitoring probes are the same or different, or the plurality of monitoring probes are divided into a plurality of groups, the lengths of the monitoring probes in the same group are the same, and the lengths of the monitoring probes in different groups are different.

The utility model has the advantages that:

1. the geological disaster monitoring equipment integrates the soil moisture content, soil inclination angle and soil temperature monitoring functions, can monitor the soil moisture content, soil inclination angle and soil temperature parameters at different depths simultaneously, can know the change condition of the physical properties of the soil inside the slope in real time, judges the slope stability degree and realizes early warning and forecast; by combining rainfall monitoring, the slope instability critical water content and the rainfall can be analyzed and researched according to long-term observation data, and meanwhile, the slope rainfall influence depth can be analyzed and researched, so that key data are provided for research on the cause mechanism of the (similar) soil quality high-steep unstable slope geological disaster, and the geological disaster management design can be more scientific and optimized. The monitoring equipment is low in price, is universal geological disaster monitoring equipment, and has wide application prospect.

2. The multi-depth rock-soil moisture content and inclination combined probe measures the mode of soil body dielectric constant by measuring two signal frequencies generated by an oscillation circuit formed by capacitance between the cylindrical electrodes, finally calculates the moisture content of the soil body, can effectively ensure the accuracy of soil body moisture content monitoring data, the annular protrusions on the supporting column and in the supporting column are provided with the conductive metal layer, so that a parasitic electric field between the cylindrical electrodes can be effectively eliminated, the sensitivity and the accuracy of capacitance measurement are improved, the accuracy of the soil body moisture content monitoring data is improved, and the resolution of the change of the moisture content of the soil body can reach more than 0.1%.

3. By monitoring the temperature of the soil body, the measurement result of the dielectric constant of the soil body can be compensated, calculated and calibrated according to the temperature characteristic of the soil body, and the accuracy of the measurement data of the water content of the soil body is further improved.

4. The setting of support disc can effectively avoid in the monitoring process of probe to the soil body, the inside of environment soil body and water accident entering probe causes destruction to its inner structure, sealed packing of gluing can further improve the leakproofness of probe tip.

5. Geological disaster monitoring facilities can be according to the actual monitoring needs of the soil body, and nimble adjustment monitor's quantity can monitor and gather simultaneously the different soil body parameters of a plurality of monitoring points of different degree of depth soil layers, and work efficiency is high, adopts the detachable connected mode between the adjacent monitor and between monitor and the conical head, easy dismounting, the length of the adjustment monitoring facilities of being convenient for, but the split becomes the multistage when monitoring facilities does not use, portable and storage.

6. The geological disaster monitoring equipment is integrally in a long and thin tubular shape, is small in size, is convenient to insert into deep soil, and only needs to vertically drill holes (with smaller apertures) in a monitoring site and insert the monitoring equipment into the holes during use, so that the construction is simple, convenient and quick, the damage to the soil structure of the monitoring site is small, and the monitoring precision is high.

Drawings

FIG. 1 is a schematic structural view of the multi-depth rock-soil moisture content and inclination combined probe of the present invention;

fig. 2 is a schematic diagram of the multi-depth rock-soil moisture content and inclination combined probe of the present invention relating to external electric field lines and parasitic electric field lines;

fig. 3 is a schematic diagram of the integrated circuit board of the present invention;

fig. 4 is a schematic structural diagram of the geological disaster monitoring device of the present invention;

fig. 5 is a schematic diagram of the data transmission device of the present invention.

Detailed Description

Referring to fig. 1 and 2, the utility model discloses a many degree of depth ground moisture content, slope combination probe 1, including the tubulose casing 2 of circle, the both ends of casing are uncovered, and inside is the cavity, be equipped with insulating support column 3 along its axis in the casing, the length of support column is less than the length of casing, its radial outer wall with leave the interval between the inner wall of casing, it is equipped with two cylindric electrodes 4, two to follow the axial fixity cover on the support column the cylindric electrode is used as positive pole and negative pole respectively, two leave the interval between the cylindric electrode and with leave the clearance between the inner wall of casing.

The method can measure the dielectric constant of the soil body by measuring the signal frequency generated by an oscillation circuit formed by the capacitance between the two cylindrical electrodes, and finally calculate the water content of the soil body (the dielectric constant of the soil body is closely related to the water content of the soil body), thereby effectively ensuring the accuracy of the monitoring data of the water content of the soil body.

The appearance of support column can be cylindric, also can be cuboid column etc. preferably adopts tubular structure, and both ends are uncovered usually, the cylindric electrode be equipped with along its axis with the shape matched with shaft hole of support column is convenient for suit on the support column. Through the support column separates the space for surveyed space (exterior space) and inner space, and the circuit line and the data transmission line of probe can set up in the inner space, by the support column protection, the support column adopts full insulating material, can guarantee on the one hand not have direct current between exterior space and the inner space, and on the other hand can guarantee two can not direct current switch on between the cylindric electrode.

The cylindrical electrodes are preferably cylindrical and coaxially sleeved on the support columns, annular bulges 5 protruding outwards in the radial direction are arranged on the support columns between the two cylindrical electrodes, the two cylindrical electrodes are respectively located on two sides of the annular bulges, and the diameters of the annular bulges are not smaller than the outer diameters of the cylindrical electrodes. The annular bulge belongs to a part of the support column, can be fixedly sleeved on the main body part of the support column after being independently processed, is made of a material which is the same as or different from that of the support column (the main body part) and is a fully-insulating material, and aims to strengthen the isolation between the two cylindrical electrodes.

The casing is preferably internally provided with a temperature sensor 6 for detecting the temperature of the soil body at a monitoring point, and the temperature range can be-40-85 ℃ so as to adapt to the temperature change of the soil body in different geological environments. The temperature sensor is preferably mounted on either of the two cylindrical electrodes and adjacent to the inner wall of the housing, or may be directly fixed to the inner wall of the housing to facilitate thermal conduction collection. The temperature sensor may also be replaced by a digital sensing temperature chip suitable in the art.

And a three-axis acceleration sensor or an inclination sensor is preferably arranged in the shell and used for detecting the inclination of the soil layer of the monitoring point.

The two ends of the supporting column are preferably respectively provided with a supporting disc 7 which is concentric with and perpendicular to the supporting column, the supporting disc can be a circular disc, the supporting disc is matched with the end part of the supporting column through an axial middle hole (for example, the end part of the supporting column is fixedly sleeved with the end part of the supporting column), when the end part of the supporting column is inserted into the axial middle hole of the disc, the unequal-diameter hole of the axial middle hole segmented structure is sleeved at the end part of the supporting column, the aperture of an outer section hole is smaller than the outer diameter of the end part of the supporting column, the end part of the supporting column is abutted against the annular end face between the inner section hole and the outer section hole, so that the axial positioning and the fixing of the inner section hole and the outer section hole are realized, the radial outer edge of the supporting disc is fixedly and hermetically connected with the inner wall of the shell, the supporting disc is mainly used for sealing and isolating, and the situation that environmental soil and water are prevented from accidentally entering the inside of the probe (indicating the space between the two supporting discs) in the monitoring process of the soil by the probe, causing damage to the internal structure thereof. The supporting disc can belong to one part of the supporting column, and the supporting column is made of the same material as the supporting column and is made of a fully-insulating material. The support column, the annular bulge and the support disc jointly form a support body, and the support body can be manufactured in an integrated forming mode.

Preferably, sealant is filled between the outer edge (outer side surface) of the supporting disk and the shell (the inner wall of the shell adjacent to the outer edge of the supporting disk), so that the sealing property of the end part of the probe is further improved. The sealant can be any suitable resin type, rubber type or oil-based type sealant in the prior art.

The support body is preferably of a hollow structure, a conductive metal layer is arranged on the inner surface of the support body and covers the whole inner surface area of the support body, and an electric shielding layer between the inner space and the outer space of the support body is formed. The circuit wiring and the data transmission line of the probe can be arranged in the inner space of the supporting body. The conductive metal layer is arranged in the support body to realize electric shielding, so that on one hand, the capacitance detection value of the probe is insensitive to the change of the internal space, the parasitic capacitance between the two cylindrical electrodes generated by the internal space is reduced, and on the other hand, the internal circuit of the probe is electrically protected and is not influenced by the change of the external space.

As an example of electric field analysis, fig. 2 shows that there are 4 virtual electric field lines in the physical sense between two cylindrical electrodes, the electric field strength is larger when the electric field lines are denser, and the capacitance value is positively correlated with the electric field strength, the electric field lines passing through the external space medium are related to the characteristics of the external space material, and no matter whether the external space is gas, liquid or solid, 3 external electric field lines 8 pass through, but if the external space is solid particles, the nearest 1 parasitic electric field line 9 between two cylindrical electrodes directly passes through the air connection without passing through the solid particles, and the capacitance contributed by this parasitic electric field line becomes parasitic capacitance, which will cause the error of calculating the dielectric value of the spatial solid particles, and reduce the sensitivity of capacitance detection. The arrangement of the annular bulge and the isolation of the grounding shielding layer (metal conducting layer) in the annular bulge basically change the value of the parasitic electric field to 0 and the equivalent parasitic capacitance to 0, which is equivalent to eliminating the influence of the parasitic capacitance, thereby improving the sensitivity of the probe for detecting the external solid particle medium.

The shell can be made of pressure-resistant, waterproof and corrosion-resistant plastic or metal materials, and is preferably made of PVC-U pipes.

The support body can be made of polytetrafluoroethylene, has the characteristics of good insulation and corrosion resistance, and can also be made of other corrosion-resistant materials with low dielectric constant in the prior art, such as polyvinyl chloride, fluorine polymer compounds, chlorine fluorine polymer compounds or parylene and the like.

The cylindrical electrode can be made of stainless steel or anodic aluminum oxide materials, has low cost and strong corrosion resistance, and can also be made of other materials suitable for being used as electrode materials in the prior art.

The conductive metal layer can be a galvanized coating after the metal is plated with silver.

The multi-depth rock-soil moisture content and inclination combined probe can be matched with a proper integrated circuit, an integrated circuit board 10 can be arranged in a shell and used for power supply of elements (cylindrical electrodes and sensors) and data transmission, storage and analysis of monitoring results, the integrated circuit board is usually fixedly arranged on a supporting column, and circuit connection of the elements and the integrated circuit board can be realized by adopting a lead. As shown in fig. 3, the integrated circuit board may be provided with an embedded Microprocessor (MCU), an FDR moisture content sensing circuit (high frequency dielectric reflection circuit), a temperature sensing circuit, a storage unit module, a power management module, a bluetooth wireless transmission module, and an RS485 interface, where each circuit, module, and interface is connected to a corresponding pin of the embedded microprocessor, the embedded microprocessor is used to calculate and process data and control each circuit and module, the FDR moisture content sensing circuit is connected to two cylindrical electrodes, the temperature sensing circuit is connected to the temperature sensor, the storage unit module is used to store sensing calibration information (which can be calibrated and compensated according to different soil qualities) and ID information of a probe, the power management module is used to perform voltage conversion, system power consumption state switching, and power supply, and the RS485 interface and the bluetooth wireless transmission module are used to perform calibration and compensation with other devices or apparatuses (e.g., an upper computer) And data transmission communication, wherein the two are used and used.

The triaxial acceleration sensor or the tilt angle sensor can be integrated on the integrated circuit board, for example, the integrated circuit board is integrated with a triaxial high-precision micro-electromechanical MEMS accelerometer and is provided with an MEMS acceleration circuit, the MEMS acceleration circuit is connected with corresponding pins of the embedded microprocessor, and the change of the soil layer tilt angle of the monitoring point is calculated through the projection of the gravity acceleration under the tilt angles of different pitch angles and roll angles.

Many degree of depth ground moisture content, slope combination probe still are equipped with RS485 serial ports bus 11, RS485 serial ports bus wears to establish in the support column, its top and bottom stretch out two respectively support the disc, two all be equipped with on the lateral surface of support disc and supply the through-hole that RS485 serial ports bus passed, the top of RS485 serial ports bus can be equipped with bus bayonet joint 12, and the bottom can be equipped with the bus interface, is convenient for be connected with other probes or equipment.

The RS485 serial port bus is generally a four-core bus, and is respectively a power line, a ground line, an RX line and a TX line, the four lines are respectively connected with corresponding wiring pins of the integrated circuit board, and the support body can be provided with threading holes for connecting wires to pass through.

Referring to fig. 4, the utility model also discloses a geological disaster monitoring facilities, including a plurality of monitor and a conical head 13, monitor adopts the utility model discloses an arbitrary many degree of depth ground moisture content, slope combination probe, a plurality of monitor is vertical coaxial can dismantle the connection in proper order, is located the below monitor's bottom with conical head's the coaxial connection of dismantling in top. And the RS485 serial port buses of the adjacent monitoring probes are connected with the bus plug-in ports through bus plug-in connectors corresponding to the connecting ends. The whole monitoring device is in a slender tubular shape, is small in size and is convenient to insert into a deep soil body.

Geological disaster monitoring equipment adopts a plurality of the mode that the monitoring probe axial connects gradually can monitor and gather the different soil body parameters of a plurality of monitoring points of different degree of depth soil layers simultaneously, and work efficiency is high. By adjusting the number of the monitoring probes, the length of the monitoring equipment can be flexibly adjusted, and the monitoring device is suitable for monitoring requirements of different depths. The conical head is mainly used for reducing the resistance of the monitoring device when the monitoring device is inserted into the soil body and breaking the soil body which blocks downward insertion when necessary.

The corresponding connecting ends (the shells corresponding to the connecting ends or the corresponding connecting ends of the shells) of the two monitoring probes which are preferably connected with each other in the detachable connecting mode are respectively in threaded connection with the two ends of the same connecting sleeve 14, the bottom end of the monitoring probe which is positioned at the lowest position and the top end of the conical head are respectively in threaded connection with the two ends of the same connecting sleeve, and external threads can be arranged at the end part of the shell to realize the threaded connection. Realize can dismantle connected mode's structure does be on the both ends outer wall of monitor's casing and be equipped with the same external screw thread on the top outer wall of cone, be equipped with respectively on adapter sleeve's the both ends inner wall with external screw thread matched with internal thread, monitor with adapter sleeve and cone with adapter sleeve passes through matched with external screw thread and female connection.

Geological disaster monitoring facilities can be supporting with suitable data transmission device 15, inserts the monitoring data who derives from each test probe data transmission device carries out data processing and external transmission according to the data transmission device function that matches, data transmission device can pass through adapter sleeve with be located the top be connected monitor probe's top, data transmission device's casing tip sets up the external screw thread, connects on corresponding adapter sleeve soon from this, realizes and connects the connection at the probe of corresponding adapter sleeve other end soon, works as when monitoring facilities inserts the soil body, data transmission device exposes the earth's surface. As shown in fig. 5, the data transmission device may be provided with an embedded Microprocessor (MCU), a wireless data transmission module, a storage unit module, a power management module, an RTC clock module, a bluetooth wireless transmission module, and an RS485 interface, where each circuit, module, and interface is connected to a corresponding pin of the embedded microprocessor, the embedded microprocessor is configured to calculate and process data acquisition and control each circuit and module, the wireless data transmission module is configured to transmit collected monitoring data of each monitoring probe to a cloud platform or an upper computer, the wireless transmission mode may be Lora, Wi-Fi, bluetooth, NBIOT, or 2G/3G/4G/5G, and the like, the storage unit module is configured to temporarily store data, and the power management module is configured to perform voltage conversion, system power consumption state switching, and power supply, the RTC clock module is used for recording time, the RS485 interface and the Bluetooth wireless transmission module are used for carrying out data transmission communication with the corresponding RS485 interface and the corresponding Bluetooth wireless transmission module of each monitoring probe, and the two modules are used for one standby.

The geological disaster monitoring equipment can know the change situation of the physical property of the soil body in the high, steep and unstable slope of the soil quality (soil-like quality) according to the data detected by each monitoring probe, establish a relation model of the water content of the soil body and the stability of landslide and collapse, judge the stability degree of the slope and realize early warning and forecasting in advance; by combining rainfall monitoring, the slope instability critical water content and the rainfall can be analyzed and researched according to long-term observation data, and meanwhile, the slope rainfall influence depth can be analyzed and researched, so that key data are provided for research on the cause mechanism of the (similar) soil quality high-steep unstable slope geological disaster, and the geological disaster management design can be more scientific and optimized.

The length of the plurality of monitoring probes can be the same or different, or the plurality of monitoring probes are divided into a plurality of groups, the length of each monitoring probe in the same group is the same, and the length of the monitoring probes in different groups is different. Therefore, the method can be suitable for the situations with different requirements on the distance between monitoring points. Usually, the monitoring points at the shallow layer of the earth surface are densely arranged (the distance between the adjacent monitoring points is smaller), the distance between the adjacent monitoring points at the deep layer can be relatively larger, for example, within 0-2 meters below the earth surface, one monitoring point is arranged at each interval of 0.5 meters, within 2-10 meters and one monitoring point is arranged at each interval of 1 meter, at this time, the monitoring probe can adopt two lengths, namely 0.5 meter and 1 meter respectively, and the diameter of the monitoring probe is usually not more than 40 mm.

In practical application, the midpoint of a vertical connecting line between the two cylindrical electrodes of the monitoring probe is generally corresponding to a monitoring point of a target depth. The depth of investigation (length of the monitoring device), the number of monitoring probes and the depth of the monitoring points can be referred to table 1.

Reference table for detecting depth (length of monitoring equipment), number of monitoring probes and depth of monitoring point

Probe depth/monitor device length: (Unit: m)	Number of monitoring probes (unit: one)	Depth of monitoring point (unit: m)
			1	3	0.5/1/1.5
3	5	0.5/1/1.5/2/3
			5	7	0.5/1/1.5/2/3/4/5
7	9	0.5/1/1.5/2/3/4/5/6/7
			9	11	0.5/1/1.5/2/3/4/5/6/7/8/9

Adopt geological disaster monitoring facilities should arrange at (potential) geological disaster body main section position and be no less than 1 when the mountain body that has geological disaster hidden danger is used, should install in landslide main slide section and/or abundant section of mud-rock flow thing source, and every section is no less than 3, and the monitoring point degree of depth can be confirmed according to (potential) geological disaster body thickness.

The utility model discloses an arbitrary many degree of depth ground moisture content, slope combination probe all can be used for the utility model discloses an arbitrary geological disasters monitoring facilities.

The utility model discloses an arbitrary geological disaster monitoring facilities also all can adopt the utility model discloses an arbitrary many degree of depth ground moisture content, slope combination probe.

Claims (10)

1. Many degree of depth ground moisture content, slope combination probe, its characterized in that includes the tubulose casing of circle, be equipped with insulating support column along its axis in the casing, the length of support column is less than the length of casing, its radial outer wall with leave the interval between the inner wall of casing, it is equipped with two cylindric electrodes, two to follow the axial fixity cover on the support column the cylindric electrode is positive pole and negative pole respectively, two leave the interval between the cylindric electrode.

2. The multi-depth rock-soil moisture content and inclination combined probe according to claim 1, wherein the cylindrical electrodes are cylindrical, and a supporting column between the two cylindrical electrodes is provided with an annular bulge protruding radially outwards, and the diameter of the annular bulge is not less than the outer diameter of the cylindrical electrodes.

3. The multi-depth rock-soil moisture content and inclination combined probe according to claim 2, wherein two ends of the supporting column are respectively provided with a supporting disc which is concentric with and perpendicular to the supporting column, and the radial outer edge of the supporting disc is fixedly and hermetically connected with the inner wall of the shell.

4. The multi-depth rock-soil moisture content and inclination combined probe according to claim 3, wherein a sealant is filled between the supporting disc and the end portion of the same side of the shell.

5. The multi-depth rock-soil moisture content and inclination combined probe according to claim 3, wherein the support pillar, the annular protrusion and the support disc form a hollow structure, a conductive metal layer is arranged on the inner surface of the support body, and the conductive metal layer covers the whole inner surface area of the support body.

6. The multi-depth rock moisture content and inclination combined probe according to claim 1, 2, 3, 4 or 5, wherein a temperature sensor is arranged in the shell.

7. The multi-depth rock water content and inclination combined probe according to claim 1, 2, 3, 4 or 5, wherein a three-axis acceleration sensor or an inclination sensor is arranged in the shell.

8. Geological disaster monitoring equipment is characterized by comprising a plurality of monitoring probes and a conical head, wherein the monitoring probes adopt the multi-depth rock-soil moisture content and inclination combined probe of any one of claims 1-7, the monitoring probes are sequentially, vertically and coaxially detachably connected, and the bottom end of the monitoring probe positioned at the lowest part is coaxially detachably connected with the top end of the conical head.

9. The geological disaster monitoring device as claimed in claim 8, wherein said detachable connection means is that the corresponding connection ends of two interconnected monitoring probes are respectively screwed on two ends of the same connecting sleeve, and the bottom end of the monitoring probe located at the lowest position and the top end of the cone head are respectively screwed on two ends of the same connecting sleeve.

10. A geological disaster monitoring device as claimed in claim 9, wherein said plurality of monitoring probes are of the same or different lengths, or wherein said plurality of monitoring probes are grouped into groups, each monitoring probe of a group being of the same length and each monitoring probe of a different group being of a different length.

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