Fractured rock mass hydraulic pressure test and array electrode monitoring and detecting device and use method

Abstract

The invention discloses a fractured rock mass hydraulic pressure test and array electrode monitoring and detecting device and a using method, and relates to the technical field of hydraulic engineering geological investigation, the fractured rock mass hydraulic pressure test and array electrode monitoring and detecting device comprises an upper plug and a lower plug arranged below the upper plug, a floral tube is fixedly arranged between the lower plug and the upper plug, and a water pump pipe is arranged on the upper plug; the upper plug and the lower plug are both sleeved with sealing air bags, an air pumping assembly is arranged above the upper plug, the portion, above the lower plug, of the floral tube is sleeved with an air guide ring, an electromagnetic valve is arranged between the air guide ring and the air conveying pipe, and a pneumatic telescopic assembly is arranged at the air outlet end of the air guide ring. A conductive wire is wound on the outer side of the floral tube, a waterproof sealing cylinder is arranged on the conductive wire, an electrode bar is arranged in the waterproof sealing cylinder, and a waterproof sealing assembly is arranged on the side, away from the floral tube, of the waterproof sealing cylinder. And the spatial distribution of the pressurized water area fracture system is inverted.

Description

Technical Field

[0001] The invention relates to the technical field of geological survey for water conservancy projects, and in particular to a fractured rock mass water pressure test and array electrode monitoring and detection device and a use method thereof. Background Art

[0002] Capturing the water conductivity characteristics and spatial distribution of deep rock fracture systems has important production significance and value for the development and utilization of new energy sources (geothermal energy, etc.) stored in hot dry rocks and the safe storage of production materials such as deep space energy resources. The purpose of water pressure test is to determine the permeability of the rock mass, and the purpose of borehole video detection is to analyze the dominant joint surface and evaluate the integrity of the rock mass. Both provide important parameter basis for the suitability evaluation and design of deep rock engineering. The traditional water pressure test is that when the borehole reaches a certain depth, the plug connected to the drill rod is lowered to the bottom of the hole, and the test section is injected with water at a specific water pressure. The permeability of the rock mass is calculated by the injected flow rate. However, during the water injection process, the diffusion and migration behavior of water along the fractures cannot be known. Borehole video detection and water pressure test are commonly used test methods in the field of water conservancy and hydropower geological exploration. Borehole video detection is to lower the probe equipped with video acquisition from the top of the hole to the bottom of the hole at a uniform speed. The digital imaging is the expansion diagram of the borehole cylinder. The result can only reveal the distribution of fractures on the surface of the surrounding rock, and the spatial distribution of the fracture system inside the rock mass cannot be known.

[0003] At present, traditional rock mass monitoring and detection can generally only be achieved through water pressure tests. The test data on the rock mass that can be obtained by this detection method is single, and cannot assist relevant personnel to study and understand the rock mass from more angles, and thus cannot better study the effectiveness of water pressure tests at different temperatures, the influence mechanism of temperature on fluid diffusion and migration during water pressure testing, and the spatial distribution of rock fractures in the rock mass and their corresponding permeability data. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a fractured rock water pressure test and array electrode monitoring detection device and a method of use. By separating the electrode rod from the internal space of the detection device, water pressure detection and electrode detection are achieved, and the detection data of the rock mass can be obtained more comprehensively to solve the problem that the test data about the rock mass obtained by traditional detection devices is single and cannot assist relevant personnel to study and understand the rock mass from more angles.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A fractured rock mass water pressure test and array electrode monitoring and detection device comprises an upper plug, and also comprises: a lower plug arranged below the upper plug, a flower tube fixedly arranged between the lower plug and the upper plug, the interior of the flower tube being a cavity structure, a water outlet hole being arranged on the side wall of the flower tube, a water pumping pipe being arranged on the upper plug, the water pumping pipe being connected to the flower tube, a sealing inner ring being arranged at the contact position between the water pumping pipe and the upper plug, a water pumping assembly being arranged on the water pumping pipe, a sealing air bag being sleeved on the outside of the upper plug and the lower plug, a pumping air assembly being arranged above the upper plug, an air transfer tube being arranged between the sealing air bags of the upper plug and the lower plug, an air guide ring being sleeved on the outside of the flower tube above the lower plug, the air guide ring being fixedly connected to the lower plug, an electromagnetic valve being arranged between the air guide ring and the air transfer tube, and a pneumatic telescopic assembly being arranged on the air outlet end of the air guide ring;

[0007] A conductive wire is wound around the outside of the flower tube, and a waterproof sealing cylinder is arranged on the conductive wire. A plurality of waterproof sealing cylinders are arranged in an array along the outer wall of the flower tube, and an electrode rod is arranged in the waterproof sealing cylinder. The conductive wire extends into the waterproof sealing cylinder and is electrically connected to the electrode rod. A waterproof sealing assembly is arranged on the side of the waterproof sealing cylinder away from the flower tube, and a piston assembly is arranged on one end of the waterproof sealing cylinder close to the flower tube. The outer wall of the flower tube on one side of the piston assembly is fixedly connected to a fixed column, and the end of the fixed column is fixedly connected to the waterproof sealing cylinder. A sleeve block is slidably sleeved on the fixed column, and a linkage rod is fixedly connected to the sleeve block. A spring is fixedly connected between the linkage rod and the flower tube, and the linkage rod is connected to a pneumatic telescopic assembly.

[0008] As a preferred technical solution of the present invention, the water pump assembly includes a water pump, the water outlet of the water pump is connected to a water pump pipe, and a flow meter and a pressure gauge are arranged on the water pump pipe.

[0009] As a preferred technical solution of the present invention, the pump air assembly includes an air pump, the air outlet end of the air pump is fixedly connected to a pump air pipe, and the air outlet end of the pump air pipe is connected to a sealing air bag outside the upper embolism.

[0010] As a preferred technical solution of the present invention, the pneumatic telescopic assembly includes a pneumatic telescopic column, which is fixedly arranged on the outer wall of the flower tube, and the air outlet end of the air guide ring is connected to the air inlet end of the pneumatic telescopic column.

[0011] As a preferred technical solution of the present invention, the telescopic end of the pneumatic telescopic column is connected to a fixed arm, a transmission arm is fixedly connected to the fixed arm, and one end of the transmission arm is fixedly connected to a linkage rod.

[0012] As a preferred technical solution of the present invention, the waterproof sealing assembly includes a sealing cover rotatably arranged at the end of the waterproof sealing cylinder, the sealing cover is fixedly connected to a sealing gasket close to one side of the waterproof sealing cylinder, and a torsion spring is sleeved on the rotating connection shaft between the sealing cover and the waterproof sealing cylinder.

[0013] As a preferred technical solution of the present invention, the piston assembly includes a push rod that slides through the side wall of the waterproof sealing cylinder, one end of the push rod is fixedly connected to the electrode rod, and the end of the push rod away from the electrode rod is fixedly connected to the linkage rod.

[0014] As a preferred technical solution of the present invention, the two side walls at the top of the flower tube are respectively fixedly connected to an ERT demodulator and a data sensor, the ERT demodulator and the data sensor are electrically connected to the conductive wire, and a heater is arranged on the lower plug.

[0015] The method for using the fractured rock mass water pressure test and array electrode monitoring and detection device comprises the following steps:

[0016] S1, placing the device containing the lower plug, the upper plug and the flower tube in the hole, and then inflating the sealing airbag through the pump air component, the sealing airbags outside the upper plug and the lower plug expand to achieve sealing and positioning, and then starting the water pump component to flush water into the hole through the flower tube, this process realizes water pressure detection;

[0017] S2. After the water pressure test is completed, the water in the upper and lower plugs is drained by the external pumping assembly, and the solenoid valve is opened. Under the action of the pneumatic telescopic assembly, the electrode rod is extended and in close contact with the rock wall to achieve electrode monitoring and detection;

[0018] S3. After the detection is completed, the gas in the sealed airbag is extracted through the pump gas assembly, and then the lower plug, the upper plug and the flower tube are extracted, and the above steps are repeated to perform monitoring and detection again in different holes.

[0019] The present invention has the following benefits:

[0020] A wire with a waterproof sealing tube is wound around the outer wall of the flower tube, an electrode rod is arranged in the waterproof sealing tube, and a waterproof sealing component is arranged outside the waterproof sealing tube. Annular sealing air bags are sleeved on the outer walls of the upper embolism and the lower embolism. In normal use, the detection device can be placed in the borehole, and then the sealing air bag is inflated under the action of the pump air component. After the sealing air bag is inflated, it will expand and can be in close contact with the inner wall of the borehole to achieve sealing and prevent water leakage.

[0021] When electrode detection is required, firstly, the water between the upper plug and the lower plug is pumped out through the external pumping device, and then the solenoid valve is opened. Under the action of the pump air assembly, the pneumatic telescopic column will drive the electrode rod on one side of the piston assembly to move toward the inner wall of the borehole through the linkage rod and contact the inner wall. The resistivity distribution of the underground medium is measured through multiple arrays of electrode rods. At the same time, under the action of active heating and temperature sensors, the effectiveness of water pressure tests at different temperatures and the influence mechanism of temperature on fluid diffusion and migration during water pressure can be studied.

[0022] Through water pressure detection and electrode detection, the migration path of the fluid during the water pressure process can be clarified, and the diffusion range and diffusion mechanism of the fluid along the rock cracks during the water pressure test can be obtained; on the other hand, water pressure can also be used to diffuse the fluid into the rock cracks to enhance the conductivity of the rock cracks. The high-density apparent resistivity array exploration method can be used to monitor the entire process of fluid diffusion along the cracks during water pressure, and then the spatial distribution of the fracture system in the water pressure area can be inverted, providing reliable technical means and solutions for accurately capturing the spatial distribution of rock cracks and their corresponding permeability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of the fractured rock mass water pressure test and array electrode monitoring and detection device.

[0024] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of A.

[0025] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of B.

[0026] In the figure: 1. upper plug; 2. lower plug; 3. flower tube; 4. conductive wire; 5. spring; 6. water pump pipe; 7. air pump pipe; 8. sealing inner ring; 9. ERT demodulator; 10. temperature sensor; 11. data sensor; 12. air transmission tube; 13. electrode rod; 14. pneumatic telescopic column; 15. sealing air bag; 16. air guide ring; 17. solenoid valve; 18. heater; 19. waterproof sealing cylinder; 20. sealing cover; 21. push rod; 22. sleeve block; 23. linkage rod; 24. fixed column; 25. sealing pad; 26. water outlet; 27. flow meter; 28. pressure gauge; 29. ​​water pump; 30. air pump; 31. fixed arm; 32. transmission arm. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] Example 1, please refer to Figure 1-Figure 3The fractured rock mass water pressure test and array electrode monitoring and detection device comprises an upper embolism 1, and also comprises: a lower embolism 2 arranged below the upper embolism 1, a flower tube 3 is fixedly arranged between the lower embolism 2 and the upper embolism 1, the interior of the flower tube 3 is a cavity structure, a water outlet hole 26 is arranged on the side wall of the flower tube 3, a pump water pipe 6 is arranged on the upper embolism 1, the pump water pipe 6 is connected to the flower tube 3, a sealing inner ring 8 is arranged at the contact position between the pump water pipe 6 and the upper embolism 1, and a sealing inner ring 8 is arranged on the pump water pipe 6 A water pump assembly, wherein the upper plug 1 and the lower plug 2 are both sleeved with a sealing air bag 15, a pump assembly is arranged above the upper plug 1, an air transfer tube 12 is arranged between the sealing air bags 15 of the upper plug 1 and the lower plug 2, an air guide ring 16 is sleeved outside the flower tube 3 above the lower plug 2, the air guide ring 16 is fixedly connected to the lower plug 2, an electromagnetic valve 17 is arranged between the air guide ring 16 and the air transfer tube 12, and a pneumatic telescopic assembly is arranged on the air outlet end of the air guide ring 16;

[0029] A conductive wire 4 is wound around the outside of the flower tube 3, and a waterproof sealing tube 19 is arranged on the conductive wire 4. A plurality of waterproof sealing tubes 19 are arranged in an array along the outer wall of the flower tube 3. An electrode rod 13 is arranged in the waterproof sealing tube 19. The conductive wire 4 extends into the waterproof sealing tube 19 and is electrically connected to the electrode rod 13. A waterproof sealing assembly is arranged on the side of the waterproof sealing tube 19 away from the flower tube 3. A piston assembly is arranged on the end of the waterproof sealing tube 19 close to the flower tube 3. A fixed column 24 is fixedly connected to the outer wall of the flower tube 3 on one side of the piston assembly. The end of the fixed column 24 is fixedly connected to the waterproof sealing tube 19. A sleeve block 22 is slidably sleeved on the fixed column 24. A linkage rod 23 is fixedly connected to the sleeve block 22. A spring 5 is fixedly connected between the linkage rod 23 and the flower tube 3. The linkage rod 23 is connected to a pneumatic telescopic assembly.

[0030] A wire with a waterproof sealing tube 19 is wound around the outer wall of the flower tube 3, an electrode rod 13 is arranged inside the waterproof sealing tube 19, and a waterproof sealing component is arranged outside the waterproof sealing tube 19. An annular sealing airbag 15 is sleeved on the outer walls of the upper embolism 1 and the lower embolism. In normal use, the detection device can be placed in the borehole, and then the sealing airbag 15 is inflated under the action of the pump air component. After the sealing airbag 15 is inflated, it will expand and can be in close contact with the inner wall of the borehole to achieve sealing and prevent water leakage;

[0031] When electrode detection is required, firstly, the water between the upper embolism plug 1 and the lower embolism plug 2 is pumped out through the external pumping device, and then the solenoid valve 17 is opened. Under the action of the pump air assembly, the pneumatic telescopic column 14 will drive the electrode rod 13 on one side of the piston assembly to move toward the inner wall of the borehole through the linkage rod 23 and contact the inner wall. The resistivity distribution of the underground medium is measured through multiple arrays of electrode rods 13. At the same time, under the action of active heating and temperature sensors 10, the effectiveness of water pressure tests at different temperatures and the influence mechanism of temperature on fluid diffusion and migration during water pressure tests can be studied.

[0032] Example 2, please refer to Figure 1-Figure 3 The water pump assembly includes a water pump 29, the water outlet end of the water pump 29 is connected to the water pump pipe 6, and the water pump pipe 6 is provided with a flow meter 27 and a pressure gauge 28; under the action of the water pump 29, external water can be sent into the flower tube 3 through the water pump pipe 6 to carry out a water pressure detection test, and specific test data can be obtained in combination with the flow meter 27 and the pressure gauge 28.

[0033] The pump air assembly includes an air pump 30, the air outlet end of the air pump 30 is fixedly connected to the pump air pipe 7, and the air outlet end of the pump air pipe 7 is connected to the sealing air bag 15 outside the upper embolism 1; under the action of the air pump 30, the sealing air bag 15 outside the upper embolism 1 and the lower embolism 2 can be inflated through the pump air pipe 7, so as to achieve the sealing of the space between the upper embolism 1 and the lower embolism 2 and the fixation of the position.

[0034] The pneumatic telescopic assembly includes a pneumatic telescopic column 14, which is fixedly arranged on the outer wall of the flower tube 3, and the air outlet end of the air guide ring 16 is connected to the air inlet end of the pneumatic telescopic column 14; the telescopic end of the pneumatic telescopic column 14 is connected to a fixed arm 31, and a transmission arm 32 is fixedly connected to the fixed arm 31, and one end of the transmission arm 32 is fixedly connected to the linkage rod 23;

[0035] During actual use, when the solenoid valve 17 is opened, the gas generated by the pump air assembly can drive the pneumatic telescopic column 14 to extend, and then drive the linkage rod 23 to move through the transmission arm 32 above the fixed arm 31. During the movement of the linkage rod 23, the electrode rod 13 can be extended through the piston assembly. At the same time, if the pump air assembly is evacuated, the pneumatic telescopic column 14 can drive the electrode rod 13 to be retracted through the piston assembly.

[0036] The waterproof sealing assembly includes a sealing cover 20 rotatably arranged at the end of the waterproof sealing cylinder 19, and the sealing cover 20 is fixedly connected to a sealing gasket 25 close to one side of the waterproof sealing cylinder 19. A torsion spring is sleeved on the rotating connection shaft between the sealing cover 20 and the waterproof sealing cylinder 19. Under the action of the sealing gasket 25 on one side of the sealing cover 20, the waterproof sealing cylinder 19 can be kept in a sealed state, and the electrode rod 13 can be prevented from contacting water during water pressure detection.

[0037] The piston assembly includes a push rod 21 that slides through the side wall of the waterproof sealing cylinder 19, one end of the push rod 21 is fixedly connected to the electrode rod 13, and the end of the push rod 21 away from the electrode rod 13 is fixedly connected to the linkage rod 23; when actually used, the electrode rod 13 can be driven to move laterally under the action of the push rod 21, and during the movement of the electrode rod 13, the sealing cover 20 can be driven to open and extend out of the waterproof sealing cylinder 19.

[0038] The two side walls at the top of the flower tube 3 are respectively fixedly connected to the ERT demodulator 9 and the data sensor 11, and the ERT demodulator 9 and the data sensor 11 are electrically connected to the conductive wire 4. A heater 18 is arranged on the lower plug 2, and a temperature sensor is arranged between the lower plug 2 and the upper plug 1 on one side of the heater 18, and the temperature sensor can detect the heating temperature;

[0039] Both the upper plug 1 and the lower plug 2 are made of high-strength carbon fiber tubes or high-strength steel. At the same time, the pipeline and the electrode are insulated, that is, the electrode installed on the pipeline is not conductive to the pipeline. That is, 64 array electrodes are spirally arranged on the outer wall of the flower tube 3, connected in series through wires, and connected to the ERT demodulator 9. The electrode is a special copper electrode with a round rod at the front end. The electrode rod 13 is in close contact with the hole wall rock. The water pressure equipment has built-in active heating and temperature sensors 10 to study the effectiveness of water pressure tests at different temperatures and reveal the influence mechanism of temperature on fluid diffusion and migration during water pressure.

[0040] The method for using the fractured rock mass water pressure test and array electrode monitoring and detection device comprises the following steps:

[0041] S1, placing the equipment containing the lower plug 2, the upper plug 1 and the flower tube 3 in the hole, and then inflating the sealing airbag 15 through the pump air component, the sealing airbag 15 outside the upper plug 1 and the lower plug 2 expands to achieve sealing and positioning, and then starting the water pump component to flush water into the hole through the flower tube 3, and this process realizes water pressure detection;

[0042] S2, after the water pressure test is completed, the water in the upper embolism plug 1 and the lower embolism plug 2 is drained by the external pumping assembly, and the solenoid valve 17 is opened. Under the action of the pneumatic telescopic assembly, the electrode rod 13 is extended and in close contact with the rock wall to achieve electrode monitoring and detection;

[0043] S3. After the detection is completed, the gas in the sealing airbag 15 is extracted through the pump gas component, and then the lower embolism plug 2, the upper embolism plug 1 and the flower tube 3 are extracted, and the above steps are repeated to perform monitoring and detection again in different holes.

[0044] In the implementation process of the present invention, water pressure detection and electrode detection are combined for use, which can clarify the migration path of the fluid during the water pressure process, and obtain the diffusion range and diffusion mechanism of the fluid along the rock cracks during the water pressure test; on the other hand, the fluid can also be diffused into the rock cracks by water pressure to enhance the conductivity of the rock cracks. The high-density apparent resistivity array exploration method can be used to monitor the entire process of fluid diffusion along the cracks during the water pressure process, and then the spatial distribution of the fracture system in the water pressure area can be inverted, providing reliable technical means and solutions for accurately capturing the spatial distribution of rock cracks and their corresponding permeability.

[0045] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings. The specific connection methods of each part all adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0046] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0050] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fractured rock mass water pressure test and array electrode monitoring and detection device, comprising an upper plug (1), characterized in that: Also includes: A lower plug (2) is arranged below the upper plug (1); a flower tube (3) is fixedly arranged between the lower plug (2) and the upper plug (1); the interior of the flower tube (3) is a cavity structure; a water outlet hole (26) is provided on the side wall of the flower tube (3); a water pump pipe (6) is arranged on the upper plug (1); the water pump pipe (6) is connected to the flower tube (3); a sealing inner ring (8) is arranged at the contact position between the water pump pipe (6) and the upper plug (1); a water pump assembly is arranged on the water pump pipe (6); the upper plug (1) and the lower plug (2) A sealing air bag (15) is sleeved on the outside, a pump air assembly is arranged above the upper plug (1), an air transmission tube (12) is arranged between the sealing air bags (15) of the upper plug (1) and the lower plug (2), an air guide ring (16) is sleeved on the outside of the flower tube (3) above the lower plug (2), the air guide ring (16) is fixedly connected to the lower plug (2), an electromagnetic valve (17) is arranged between the air guide ring (16) and the air transmission tube (12), and a pneumatic telescopic assembly is arranged on the air outlet end of the air guide ring (16); A conductive wire (4) is wound around the outer side of the flower tube (3), a waterproof sealing tube (19) is arranged on the conductive wire (4), and a plurality of waterproof sealing tubes (19) are arranged in an array along the outer wall of the flower tube (3). An electrode rod (13) is arranged in the waterproof sealing tube (19), and the conductive wire (4) extends into the waterproof sealing tube (19) and is electrically connected to the electrode rod (13). A waterproof sealing component is arranged on the side of the waterproof sealing tube (19) away from the flower tube (3), and a piston component is arranged on the end of the waterproof sealing tube (19) close to the flower tube (3). The outer wall of the flower tube (3) on one side of the piston component is fixedly connected to a fixed column (24), and the end of the fixed column (24) is fixedly connected to the waterproof sealing tube (19). A sleeve block (22) is slidably sleeved on the fixed column (24), and a linkage rod (23) is fixedly connected to the sleeve block (22). A spring (5) is fixedly connected between the linkage rod (23) and the flower tube (3), and the linkage rod (23) is connected to a pneumatic telescopic component.

2. The fractured rock mass water pressure test and array electrode monitoring and detection device according to claim 1 is characterized in that: The water pump assembly comprises a water pump (29), the water outlet end of the water pump (29) is connected to a water pump pipe (6), and a flow meter (27) and a pressure gauge (28) are arranged on the water pump pipe (6).

3. The fractured rock mass water pressure test and array electrode monitoring and detection device according to claim 1, characterized in that: The pump air assembly comprises an air pump (30), the air outlet end of the air pump (30) is fixedly connected to a pump air pipe (7), and the air outlet end of the pump air pipe (7) is connected to a sealing air bag (15) outside the upper embolism (1).

4. The fractured rock mass water pressure test and array electrode monitoring and detection device according to claim 1, characterized in that: The pneumatic telescopic assembly comprises a pneumatic telescopic column (14), the pneumatic telescopic column (14) is fixedly arranged on the outer wall of the flower tube (3), and the air outlet end of the air guide ring (16) is connected to the air inlet end of the pneumatic telescopic column (14).

5. The fractured rock mass water pressure test and array electrode monitoring and detection device according to claim 4 is characterized in that: The telescopic end of the pneumatic telescopic column (14) is connected to a fixed arm (31), the fixed arm (31) is fixedly connected to a transmission arm (32), and one end of the transmission arm (32) is fixedly connected to a linkage rod (23).

6. The fractured rock mass water pressure test and array electrode monitoring and detection device according to claim 5, characterized in that: The waterproof sealing assembly comprises a sealing cover (20) rotatably arranged at the end of the waterproof sealing cylinder (19); a sealing gasket (25) is fixedly connected to the sealing cover (20) on one side close to the waterproof sealing cylinder (19); and a torsion spring is sleeved on the rotation connection shaft between the sealing cover (20) and the waterproof sealing cylinder (19).

7. The fractured rock mass water pressure test and array electrode monitoring and detection device according to claim 6, characterized in that: The piston assembly comprises a push rod (21) which slides through the side wall of the waterproof sealing cylinder (19), one end of the push rod (21) is fixedly connected to the electrode rod (13), and one end of the push rod (21) away from the electrode rod (13) is fixedly connected to the linkage rod (23).

8. The fractured rock mass water pressure test and array electrode monitoring and detection device according to claim 7, characterized in that: The two side walls at the top of the flower tube (3) are respectively fixedly connected to an ERT demodulator (9) and a data sensor (11); the ERT demodulator (9) and the data sensor (11) are electrically connected to the conductive wire (4); and a heater (18) is arranged on the lower plug (2).

9. A method for using the fractured rock mass water pressure test and array electrode monitoring and detection device according to claim 1, characterized in that: The following steps are involved: S1, placing a device containing a lower plug (2), an upper plug (1) and a flower tube (3) in a hole, and then inflating the sealing airbag (15) through the pump air component, so that the sealing airbag (15) outside the upper plug (1) and the lower plug (2) expands to achieve sealing and positioning, and then starting the water pump component to flush water into the hole through the flower tube (3), and this process realizes water pressure detection; S2. After the water pressure test is completed, the water in the upper plug (1) and the lower plug (2) is drained by the external pumping assembly, and then the solenoid valve (17) is opened. Under the action of the pneumatic telescopic assembly, the electrode rod (13) is extended and in close contact with the rock wall, thereby realizing electrode monitoring and detection; S3. After the detection is completed, the gas in the sealing airbag (15) is extracted through the pump gas component, and then the lower plug (2), the upper plug (1) and the flower tube (3) are extracted, and the above steps are repeated to perform monitoring and detection again in different holes.

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