A new groundwater hole pressure monitoring device

Abstract

The application discloses a novel groundwater hole pressure monitoring device and relates to the technical field of hole pressure monitoring.The device comprises a probe, a probe rod connected to the probe, a first monitoring assembly arranged in the probe rod, a plurality of static pressure connecting rods and a plurality of static pressure probe rods alternately and detachably connected to the probe rod, a signal transmission assembly arranged in each static pressure connecting rod, and a second monitoring assembly arranged in each static pressure probe rod.The probe rod and the plurality of static pressure probe rods are alternately connected to the probe rod in sequence, and the probe is pressed into a hole with the downward direction.The plurality of static pressure connecting rods and the plurality of static pressure probe rods enter the hole at positions corresponding to different depths.The first monitoring assembly and the plurality of second monitoring assemblies monitor the groundwater hole pressures at different depths.The hole pressures at different positions at different depths can be monitored.The probe rod and the plurality of static pressure probe rods are mutually isolated, so that the problem of the influence of hydraulic connection on the accuracy of measurement results is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pore pressure monitoring, in particular to a novel underground water pore pressure monitoring device. BACKGROUND

[0002] Underground water pore pressure monitoring is a measurement of the size and change of water pressure in soil pores below the underground water level, which is of great significance in the fields of civil engineering and water conservancy engineering. In the actual underground water monitoring process, it is usually necessary to bury multiple pore water pressure sensors at different depths of a hole.

[0003] There are few devices for burying a single deep hole with multiple pore pressure gauges at present, and generally include the following steps: 1, drilling: first drill to a slightly deeper position than the designed depth with a drilling machine; 2, placing pore pressure gauges: place the pore water pressure gauges into the drilled hole and wrap and fix them with sand or water-permeable cloth; 3, sand filling and fixing: fill medium-fine sand above the pore pressure gauges to ensure their stability and sealing performance; 4, hole sealing: use bentonite mud balls to seal between the pore pressure gauges to block the hydraulic connectivity between the upper and lower holes. However, the above steps have the following problems: 1, the pore pressure gauges are difficult to be fixed to the designed position, which may cause deviation of the measurement results; 2, the existing hole sealing technology is prone to the problem of connection between the upper and lower pore pressure gauges; 3, the device cannot be repaired if it has a problem, facing the problem of non-recyclability. SUMMARY

[0004] The purpose of the present application is to provide a novel underground water pore pressure monitoring device to solve the problems raised in the background technology.

[0005] To solve the above technical problems, the present application specifically provides the following technical solutions:

[0006] A novel underground water pore pressure monitoring device, comprising a probe, an internally hollow probe rod connected to the probe, a first monitoring assembly arranged in the interior of the probe rod, a plurality of internally hollow static pressure connecting rods and a plurality of internally hollow static pressure probe rods alternately and detachably connected to one end of the probe rod away from the probe, and the probe rod being connected with one of the static pressure connecting rods, the number of the static pressure connecting rods being one more than the number of the static pressure probe rods, the interior of each static pressure connecting rod being provided with a signal transmission assembly, the interior of each static pressure probe rod being provided with a second monitoring assembly, and adjacent two second monitoring assemblies being connected through the signal transmission assemblies, the first monitoring assembly being connected with one of the second monitoring assemblies through the signal transmission assembly, the probe rod being provided with a first water-permeable structure, and each of the plurality of static pressure probe rods being provided with a second water-permeable structure, and the first and second water-permeable structures being respectively used for water flow into the probe rod and the static pressure probe rod, and the static pressure connecting rod farthest from the probe rod being connected with an automatic acquisition device for acquiring data.

[0007] As a preferred scheme of the present application, the first monitoring assembly comprises a first aviation plug fixedly arranged at the end of the probe rod, and a first pore water pressure sensor connected to the first aviation plug through a signal line.

[0008] As a preferred scheme of the present application, the signal transmission assembly comprises a first movable aviation jack movably connected to one end of the static pressure connecting rod and a second aviation plug fixedly connected to the other end of the static pressure connecting rod, and the first movable aviation jack and the second aviation plug are jointly connected to a first spring signal line located in the static pressure connecting rod, and the first aviation plug is plugged and matched with the corresponding first movable aviation jack.

[0009] As a preferred scheme of the present application, the second monitoring assembly comprises a second movable aviation jack movably connected to one end of the static pressure probe rod and a third aviation plug fixedly connected to the other end of the static pressure connecting rod, and the third aviation plug is used for being plugged and matched with the corresponding first movable aviation jack, and the second movable aviation jack is used for being plugged and matched with the corresponding second aviation plug, and the bottom of the third aviation plug is connected to a second pore water pressure sensor through a signal line, and the second pore water pressure sensor and the second movable aviation jack are jointly connected to a second spring signal line located in the static pressure probe rod.

[0010] As a preferred scheme of the present application, the first aviation plug, the second aviation plug and the third aviation plug are all the same, and the first aviation plug, the second aviation plug and the third aviation plug are all provided with waterproof rubber strips.

[0011] As a preferred scheme of the present application, the opposite ends of the probe rod and one of the static pressure connecting rods are provided with first connecting structures, and the ends of each static pressure connecting rod and the corresponding static pressure probe rod are provided with second connecting structures, the first connecting structures and the second connecting structures are the same in structure, the first connecting structure comprises a straight thread sleeve and an external thread sleeve, the straight thread sleeve is sleeved on the end of the static pressure connecting rod in a sliding manner, and the straight thread sleeve slides along the axial direction of the static pressure connecting rod, and the external thread sleeve is arranged at the end of the probe rod.

[0012] As a preferred scheme of the present application, after the straight thread sleeve and the external thread sleeve are threadedly sleeved, the straight thread sleeve is fixed on the static pressure connecting rod or the static pressure probe rod through a clamping block.

[0013] As a preferred scheme of the present application, the first water permeable structure and the second water permeable structure are the same in structure, the first water permeable structure comprises a water inlet channel arranged on the probe rod in a direction perpendicular to the axial direction of the probe rod, the outer wall of the probe rod is provided with a water permeable stone in the shape of a ring, and the water permeable stone is attached to the mouth portion of the water inlet channel communicating with the outside of the probe rod.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The present application can monitor the pore pressure at different depths and positions by alternately connecting multiple static pressure connecting rods and multiple static pressure probe rods to the probe rod in sequence, and pressing the probe downward into the hole, and the multiple static pressure connecting rods and multiple static pressure probe rods enter the hole at corresponding depths, and the first monitoring assembly and multiple second monitoring assemblies monitor the groundwater pore pressure at different depths. This avoids deviations in measurement results, and the probe rod and multiple static pressure probe rods are mutually isolated, avoiding the problem of hydraulic communication affecting the accuracy of measurement results, and the entire device can be pulled up as a whole for recycling, improving the use efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0017] Fig. 1 The present application provides a structural schematic diagram of the probe rod part;

[0018] Fig. 2 The present application provides a structural schematic diagram of the static pressure connecting rod part;

[0019] Fig. 3 The present application provides a structural schematic diagram of the static pressure probe rod part;

[0020] Fig. 4 The present application provides a structural schematic diagram of the static pressure probe rod part;

[0021] The numbers in the figures represent the following respectively:

[0022] 1, probe; 2, probe rod; 3, static pressure connecting rod; 4, static pressure probe rod; 5, first connecting structure; 6, first monitoring assembly; 7, signal transmission assembly; 8, second monitoring assembly; 9, first water permeable structure; 10, automatic acquisition device; 11, second connecting structure; 12, second water permeable structure;

[0023] 501, straight thread sleeve; 502, external thread sleeve; 601, first aviation plug; 602, first pore water pressure sensor; 701, first movable aviation jack; 702, second aviation plug; 703, first spring signal line; 801, second movable aviation jack; 802, third aviation plug; 803, second pore water pressure sensor; 804, second spring signal line; 901, water inlet channel; 902, water permeable stone. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0025] The concepts involved in the present application will be described below in combination with the drawings. It should be noted that the following descriptions of the concepts are only for the purpose of making the content of the present application easier to understand, and do not represent a limitation on the protection scope of the present application. Meanwhile, the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] As shown in Figs. 1 to 4 The present application provides a new groundwater hole pressure monitoring device, which comprises a probe 1, a hollow probe rod 2 connected to the probe 1, a first monitoring assembly 6 arranged in the interior of the probe rod 2, a plurality of hollow static pressure connecting rods 3 and a plurality of hollow static pressure probes 4 alternately and detachably connected to one end of the probe rod 2 away from the probe 1, and the probe rod 2 is connected with one of the static pressure connecting rods 3, the number of the static pressure connecting rods 3 is one more than the number of the static pressure probes 4, a signal transmission assembly 7 is arranged in the interior of each static pressure connecting rod 3, a second monitoring assembly 8 is arranged in the interior of each static pressure probe 4, and adjacent two second monitoring assemblies 8 are connected through the signal transmission assembly 7, the first monitoring assembly 6 is connected with one of the second monitoring assemblies 8 through the signal transmission assembly 7, a first water permeable structure 9 is arranged on the probe rod 2, a second water permeable structure 12 is arranged on each of the static pressure probes 4, and the first water permeable structure 9 and the second water permeable structure 12 are respectively used for water flow into the probe rod 2 and the static pressure probe 4, and an automatic acquisition device 10 for acquiring data is connected to the static pressure connecting rod 3 farthest from the probe rod 2.

[0027] Because the probe rod 2, the static pressure connecting rod 3 and the static pressure probe rod 4 are detachably connected, before monitoring, the probe rod 2, the static pressure connecting rod 3 and the static pressure probe rod 4 are not connected with each other and are in an independent state. In the implementation of the technical scheme of the application, first, the position of the monitoring hole (i.e. the hole for monitoring the pressure of underground water) is determined and marked, and the corresponding static pressure equipment (i.e. the device for pressing the device of the application into the monitoring hole, which is prior art) is prepared. Then, the probe 1 on the probe rod 2 is inserted into the monitoring hole downward, and the probe rod 2 is vertically placed at the monitoring hole. The probe rod 2 is slowly pressed into the monitoring hole by the static pressure equipment, and the top of the probe rod 2 is extended from the ground by a part (such as about 20 cm), so as to ensure the stability of the probe rod 2 and facilitate the subsequent connection with the static pressure connecting rod 3.

[0028] Then, the first static pressure connecting rod 3 is connected with the top of the probe rod 2, so that the static pressure connecting rod 3 is stably connected with the probe rod 2. The static pressure connecting rod 3 and the probe rod 2 are pressed into the monitoring hole by the static pressure equipment until the top of the static pressure connecting rod 3 is extended from the ground by a part (such as about 20 cm). Then, the static pressure probe rod 4 is stably connected with the top of the static pressure connecting rod 3. The top of the static pressure probe rod 4 is pressed by the static pressure equipment. Then, the remaining static pressure connecting rods 3 and static pressure probe rods 4 are sequentially installed. After the whole device is assembled, the uppermost one is the static pressure connecting rod 3, and the probe rod 2 and the static pressure probe rod 4 exist in the monitoring hole at the positions to be monitored. Finally, the automatic acquisition device 10 (which is prior art, and any device capable of acquiring and saving data can be used) is connected with the static pressure connecting rod 3, and the data monitored by the first monitoring assembly 6 and the second monitoring assembly 8 are acquired and saved.

[0029] After the data monitoring is completed, the automatic acquisition device 10 is disconnected with the uppermost static pressure connecting rod 3. Then, the static pressure equipment is pulled out of the monitoring hole upward, and the static pressure connecting rod 3 and the static pressure probe rod 4 are removed in the reverse order of the installation steps, so as to recycle the whole device.

[0030] After the whole device is pressed into the monitoring hole, the water flows into the probe rod 2 and the static pressure probe rods 4 through the first water permeable structure 9 and the second water permeable structure 12 respectively, so that the first monitoring assembly 6 and the second monitoring assembly 8 can monitor the pressure at the corresponding positions respectively, and transmit the data to the automatic acquisition device 10 for acquisition and saving.

[0031] The technical scheme of the present application can ensure that the first monitoring assembly 6 and the second monitoring assembly 8 can be fixed in the corresponding positions for monitoring, and the interiors of the probe rod 2 and the static pressure probe rod 4 are isolated from each other, thereby avoiding hydraulic communication between the first monitoring assembly 6 and the second monitoring assembly 8 and between adjacent second monitoring assemblies 8, so as to affect the measurement results, and the present application can be recycled and reused, thereby improving the utilization rate of the device.

[0032] The first monitoring assembly 6 comprises a first aviation plug 601 fixedly arranged at the end of the probe rod 2, and a first pore water pressure sensor 602 connected to the first aviation plug 601 through a signal line.

[0033] The signal transmission assembly 7 comprises a first movable aviation jack 701 movably connected to one end inside the static pressure connecting rod 3 and a second aviation plug 702 fixedly connected to the other end inside the static pressure connecting rod 3, and the first movable aviation jack 701 and the second aviation plug 702 are jointly connected with a first spring signal line 703 located inside the static pressure connecting rod 3, and the first aviation plug 601 is plugged and matched with the corresponding first movable aviation jack 701.

[0034] The second monitoring assembly 8 comprises a second movable aviation jack 801 movably connected to one end inside the static pressure probe rod 4 and a third aviation plug 802 fixedly connected to the other end inside the static pressure connecting rod 3, and the third aviation plug 802 is used for being plugged and matched with the corresponding first movable aviation jack 701, and the second movable aviation jack 801 is used for being plugged and matched with the corresponding second aviation plug 702, and the bottom of the third aviation plug 802 is connected with a second pore water pressure sensor 803 through a signal line, and the second pore water pressure sensor 803 and the second movable aviation jack 801 are jointly connected with a second spring signal line 804 located inside the static pressure probe rod 4.

[0035] The first monitoring assembly 6 is connected with the adjacent second monitoring assembly 8 through the signal transmission assembly 7, and the plurality of second monitoring assemblies 8 are sequentially connected with each other through the signal transmission assembly 7, and finally connected with the automatic acquisition device 10 to transmit data.

[0036] When the first monitoring assembly 6 is connected with the signal transmission assembly 7, the first movable aviation jack 701 is taken out from the inside of the static pressure connecting rod 3 (such as being taken out by tweezers), the first spring signal line 703 is stretched to be elastically deformed, and the first movable aviation jack 701 is butted with the first aviation plug 601, and then the static pressure connecting rod 3 is connected and fixed with the probe rod 2.

[0037] When the signal transmission assembly 7 is connected with the second monitoring assembly 8, the second movable aviation jack 801 is taken out from the inside of the static pressure probe rod 4, the second spring signal line 804 is stretched to be elastically deformed, and the second movable aviation jack 801 is inserted with the second aviation plug 702, and then the static pressure probe rod 4 is connected and fixed with the static pressure connecting rod 3.

[0038] When the second monitoring assembly 8 is connected with the signal transmission assembly 7, the first movable aviation jack 701 is taken out from the inside of the static pressure connecting rod 3, the first spring signal line 703 is stretched to be elastically deformed, and the first movable aviation jack 701 is inserted with the third aviation plug 802, and then the static pressure connecting rod 3 is connected and fixed with the static pressure probe rod 4.

[0039] Subsequently, the signal transmission assembly 7 and the second monitoring assembly 8 are sequentially spliced according to the above steps.

[0040] The first pore water pressure sensor 602 of the first monitoring assembly 6 monitors the pressure of the water flow in the probe rod 2, the second pore water pressure sensor 803 monitors the pressure of the water flow in the static pressure probe rod 4, and the data is transmitted to the automatic acquisition device 10 through the signal line, the first spring signal line 703 and the second spring signal line 804.

[0041] By installing the first monitoring assembly 6, the plurality of signal transmission assemblies 7 and the plurality of second monitoring assemblies 8 in the probe rod 2, the static pressure connecting rod 3 and the static pressure probe rod 4 respectively, and fixing the lengths of the probe rod 2, the static pressure connecting rod 3 and the static pressure probe rod 4, the positions of the first monitoring assembly 6, the plurality of signal transmission assemblies 7 and the plurality of second monitoring assemblies 8 can be stably fixed to the predetermined positions in the monitoring hole, avoiding the problem of deviation of the measurement results, and the probe rod 2 and the static pressure probe rod 4 are isolated from each other, avoiding the problem of mutual influence between the first monitoring assembly 6 and the second monitoring assembly 8 and between the second monitoring assemblies 8 due to hydraulic connection.

[0042] The first movable aviation jack 701 and the second movable aviation jack 801 have the same structure, the first aviation plug 601, the second aviation plug 702 and the third aviation plug 802 have the same structure, and the first aviation plug 601, the second aviation plug 702 and the third aviation plug 802 are all provided with waterproof rubber strips.

[0043] By setting the waterproof rubber strips, the groundwater is prevented from entering the inside of the line to damage the measurement process.

[0044] The opposite ends of the probe rod 2 and one of the static pressure connecting rods 3 are provided with first connecting structures 5, and the ends of each static pressure connecting rod 3 and the corresponding static pressure probe rod 4 are provided with second connecting structures 11, the first connecting structures 5 and the second connecting structures 11 are the same in structure, the first connecting structure 5 comprises a straight thread sleeve 501 and an external thread sleeve 502, the straight thread sleeve 501 is sleeved on the end of the static pressure connecting rod 3 in sliding mode, and the straight thread sleeve 501 slides along the axial direction of the static pressure connecting rod 3, and the external thread sleeve 502 is arranged on the end of the probe rod 2.

[0045] The probe rod 2 and the static pressure connecting rod 3 are detachably connected through the first connecting structure 5, and the static pressure connecting rod 3 and the static pressure probe rod 4 are detachably connected through the second connecting structure 11.

[0046] When the probe rod 2 and the static pressure connecting rod 3 are connected, the straight thread sleeve 501 is slid outward along the axial direction of the static pressure connecting rod 3 to be threadedly connected with the external thread sleeve 502 on the static pressure connecting rod 3 until the straight thread sleeve 501 is completely engaged with the external thread sleeve 502, at this time, the connection of the probe rod 2 and the static pressure connecting rod 3 is completed, and the static pressure connecting rod 3 and the static pressure probe rod 4 are also connected and fixed in this way.

[0047] In the embodiment, the straight thread sleeve 501 specifically comprises a non-thread sleeve and a threaded sleeve, and the two parts jointly constitute the straight thread sleeve 501.

[0048] In the embodiment, the ends of the static pressure connecting rod 3 and the static pressure probe rod 4 are inwardly recessed to form annular grooves, and the straight thread sleeve 501 is slidably connected in the annular grooves, and the straight thread sleeve 501 is limited to move to one side by the inner wall of the annular grooves.

[0049] After the straight thread sleeve 501 is threadedly sleeved with the external thread sleeve 502, the straight thread sleeve 501 is fixed on the static pressure connecting rod 3 or the static pressure probe rod 4 through a clamping block.

[0050] The straight thread sleeve 501 needs to slide a distance to be completely engaged with the external thread sleeve 502, so that the static pressure connecting rod 3 and the static pressure probe rod 4 can move along the axial direction of the static pressure connecting rod 3 and the static pressure probe rod 4, thereby causing the positions of the first monitoring assembly 6 and the second monitoring assembly 8 and the signal transmission assembly 7 to change, and then affecting the accuracy of the monitoring result, at this time, the straight thread sleeve 501 is fixed on the static pressure connecting rod 3 and the static pressure probe rod 4 through a clamping block (not shown in the figure) to limit the sliding of the straight thread sleeve 501 on the static pressure connecting rod 3 and the static pressure probe rod 4.

[0051] In the embodiment, the clamping block is clamped between the inner wall of the annular groove and the end of the straight threaded sleeve 501, and further, the clamping block can be a structure with elastic deformation capability, such as a spring, and the end of the straight threaded sleeve 501 and the inner wall of the annular groove are provided with clamping grooves for inserting the clamping block, thereby avoiding the clamping block from falling off.

[0052] The first water-permeable structure 9 and the second water-permeable structure 12 are identical in structure, and the first water-permeable structure 9 comprises a water inlet channel 901 arranged on the probe rod 2 in a direction perpendicular to the axis of the probe rod 2, and the outer wall of the probe rod 2 is provided with a water-permeable ring 902 in a ring shape, and the water-permeable ring 902 is in communication with the water inlet channel 901 and is in close contact with the mouth portion outside the probe rod 2.

[0053] The groundwater passes through the annular water-permeable ring 902 to filter impurities such as sludge, and finally enters the inside of the probe rod 2 and the static pressure probe rod 4 through the water inlet channel 901, so as to contact the first pore water pressure sensor 602 and the second pore water pressure sensor 803, and then monitor the groundwater pressure.

[0054] The above-described embodiments and / or implementations are only used to illustrate the preferred embodiments and / or implementations of the present application, and do not limit the embodiments of the present application in any form, and any person skilled in the art can make some changes or modifications as other equivalent embodiments without departing from the scope of the technical means disclosed in the present application, but should be considered as the same technology or embodiment as the present application.

[0055] The principles and implementations of the present application are described by using specific examples, and the above embodiment description is only used to help understand the method and core idea of the present application. The above description is only the preferred embodiment of the present application, and it should be pointed out that due to the limitation of language expression, there are infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, and the above technical features can be combined in a proper way; these improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical scheme to other occasions without improvement, should be considered as the protection scope of the present application.

Claims

1. A new type of groundwater hole pressure monitoring device, comprising a probe (1), characterized in that, The probe (1) is connected with an internally hollow probe rod (2), the inside of the probe rod (2) is provided with a first monitoring assembly (6), the end of the probe rod (2) away from the probe (1) is alternately detachably connected with a plurality of internally hollow static pressure connecting rods (3) and a plurality of internally hollow static pressure probe rods (4), and the probe rod (2) is connected with one of the static pressure connecting rods (3), the number of the static pressure connecting rods (3) is one more than the number of the static pressure probe rods (4), the inside of each static pressure connecting rod (3) is provided with a signal transmission assembly (7), the inside of each static pressure probe rod (4) is provided with a second monitoring assembly (8), and the adjacent two second monitoring assemblies (8) are connected through the signal transmission assembly (7), the first monitoring assembly (6) is connected with one of the second monitoring assemblies (8) through the signal transmission assembly (7), the probe rod (2) is provided with a first water permeable structure (9), a plurality of the static pressure probe rods (4) are all provided with a second water permeable structure (12), and the first water permeable structure (9) and the second water permeable structure (12) are respectively used for water flow into the probe rod (2) and the static pressure probe rod (4), and the static pressure connecting rod (3) farthest from the probe rod (2) is connected with an automatic acquisition device (10) for acquiring data; The first monitoring assembly (6) comprises a first aviation plug (601) fixedly arranged at the end of the probe rod (2), and a first pore water pressure sensor (602) connected with the first aviation plug (601) through a signal line; The signal transmission assembly (7) comprises a first movable aviation socket (701) movably connected to one end inside the static pressure connecting rod (3) and a second aviation plug (702) fixedly connected to the other end inside the static pressure connecting rod (3), the first movable aviation socket (701) and the second aviation plug (702) are jointly connected with a first spring signal line (703) located inside the static pressure connecting rod (3), and the first aviation plug (601) is inserted and matched with the corresponding first movable aviation socket (701); The second monitoring assembly (8) comprises a second movable aviation socket (801) movably connected to one end inside the static pressure probe rod (4) and a third aviation plug (802) fixedly connected to the other end inside the static pressure connecting rod (3), the third aviation plug (802) is used for being inserted and matched with the corresponding first movable aviation socket (701), the second movable aviation socket (801) is used for being inserted and matched with the corresponding second aviation plug (702), and the bottom of the third aviation plug (802) is connected with a second pore water pressure sensor (803) through a signal line, and the second pore water pressure sensor (803) and the second movable aviation socket (801) are jointly connected with a second spring signal line (804) located inside the static pressure probe rod (4).

2. The novel groundwater hole pressure monitoring device according to claim 1, characterized in that, The first active aviation jack (701) and the second active aviation jack (801) are identical in structure, the first aviation plug (601), the second aviation plug (702) and the third aviation plug (802) are identical in structure, and the first aviation plug (601), the second aviation plug (702) and the third aviation plug (802) are all provided with waterproof rubber strips.

3. The novel groundwater hole pressure monitoring device according to claim 1, characterized in that, The opposite ends of the probe rod (2) and one of the static pressure connecting rods (3) are provided with first connecting structures (5), the ends of each static pressure connecting rod (3) and the corresponding static pressure probe rod (4) are provided with second connecting structures (11), the first connecting structures (5) and the second connecting structures (11) are identical in structure, the first connecting structure (5) comprises a straight thread sleeve (501) and an external thread sleeve (502), the straight thread sleeve (501) is sleeved on the end of the static pressure connecting rod (3) in a sliding manner, and the straight thread sleeve (501) slides along the axial direction of the static pressure connecting rod (3), and the external thread sleeve (502) is arranged on the end of the probe rod (2).

4. The novel groundwater hole pressure monitoring device according to claim 3, characterized in that, After the straight thread sleeve (501) and the external thread sleeve (502) are threadedly sleeved, the straight thread sleeve (501) is fixed on the static pressure connecting rod (3) or the static pressure probe rod (4) by a clamping block.

5. The novel groundwater hole pressure monitoring device according to claim 1, characterized in that, The first water permeable structure (9) and the second water permeable structure (12) are identical in structure, the first water permeable structure (9) comprises a water inlet channel (901) arranged on the probe rod (2) in a direction perpendicular to the axis of the probe rod (2), the outer wall of the probe rod (2) is provided with a water permeable stone (902) in the shape of a ring, and the water permeable stone (902) is in contact with the mouth portion of the water inlet channel (901) communicating with the outside of the probe rod (2).

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