Recyclable static buried water and soil pressure testing device and use method thereof

Abstract

The present invention provides a reusable static buried water and soil pressure testing device and a method for using the same. The device includes an installation assembly, a plurality of pressure gauges and a plurality of data acquisition lines. The installation assembly includes a sensor fixing part and two connectors, the connectors are connected to the two ends of the sensor fixing part, the sensor fixing part and the connectors are hollow and matched to form a line channel, and the connectors are formed with external threads. The periphery of the sensor fixing part forms a plurality of sensor mounting holes, and the pressure gauges are fixed in the sensor mounting holes. The data acquisition lines are passed through the line channels and are respectively connected to the pressure gauges. The reusable static buried water and soil pressure testing device and a method for using the same of the present invention can flexibly install pore water pressure gauges and soil pressure gauges in four lateral directions, and can greatly reduce the disturbance to the original soil by burying them in a static pressure manner, and can be pulled out by equipment after the measurement of a project is completed, and can be recycled after calibration.

Description

Technical Field

[0001] The present invention relates to the technical field of geotechnical engineering testing, and in particular to a recyclable static buried water and soil pressure testing device and a use method thereof. Background Art

[0002] As the foundation of buildings and structures, the stability of rock and soil is directly related to the safety of buildings and structures. The stress state of rock and soil is one of the important means to evaluate its stability. At present, soil pressure gauges and pore water pressure gauges are usually deployed in rock and soil or at the interface between underground structures and soil to monitor and obtain changes in the stress state of rock and soil. The reliability of water and soil pressure devices and testing methods is crucial to obtaining high-quality rock and soil stress state data.

[0003] At present, the embedding of water and soil pressure sensors in rock and soil is usually achieved by drilling. Before embedding the sensor, a hole larger than the diameter of the sensor needs to be drilled at the corresponding position, and then the sensor is fixed on the bracket and lowered into the hole, and then backfilled and protected. The main problems of the drilling method are that the rock and soil structure within a certain range around the sensor is severely damaged and the stress state is completely changed. The physical and mechanical parameters of the backfill material are quite different from those of the original soil, and the backfill quality control is difficult. As a result, the quality of the water and soil pressure test data is difficult to control. In addition, the conventional soil pressure test only conducts stress tests in one direction, and the soil is an anisotropic material. There are certain limitations in using only one direction of soil pressure change data to evaluate the soil state. According to the classical soil mechanics theory, soil pressure and excess pore water pressure need to be analyzed in coordination. The conventional method is to arrange the soil pressure sensor and pore water pressure sensor in different holes. Even if they are buried in the same hole, they will be staggered up and down by a certain position. The collected data is not the soil pressure and pore water pressure at the same position in the strict sense, which affects the analysis and judgment of the data. Conventional water and soil pressure sensors are disposable consumables, which means they cannot be recycled and reused, which is not in line with the concept of a low-carbon economy. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned prior art, the present invention provides a recyclable static pressure embedded water and soil pressure testing device and a method of using the same, which can flexibly install pore water pressure gauges and soil pressure gauges in four lateral directions, and can greatly reduce the disturbance to the original soil by embedding them in a static pressure manner, and can be pulled out using the equipment after the measurement of a project is completed, and can be recycled after calibration.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a recyclable static pressure embedded water and soil pressure testing device, including an installation assembly, a plurality of pressure gauges and a plurality of data acquisition lines; the installation assembly includes a sensor fixing part and two connecting heads, the connecting heads are connected to the two ends of the sensor fixing part, the sensor fixing part and the connecting heads are hollowly matched to form a line channel, and the connecting heads are formed with external threads; a plurality of sensor mounting holes are formed on the periphery of the sensor fixing part, and the pressure gauges are fixed in the sensor mounting holes; the data acquisition lines are passed through the line channels and are respectively connected to the pressure gauges.

[0006] Preferably, the pressure gauge comprises an earth pressure gauge and / or a pore water pressure gauge.

[0007] Preferably, the sensor fixing part is in the shape of a cube or a cylinder; when the sensor fixing part is in the shape of a cube, a sensor mounting hole is formed on each of the four sides of the sensor fixing part; when the sensor fixing part is in the shape of a cylinder, four sensor mounting holes are evenly formed on the side wall of the sensor fixing part along the circumferential direction.

[0008] Preferably, when the sensor fixing member is in the shape of a cube, the pressure gauge is in the shape of a circle or a square; when the sensor fixing member is in the shape of a cylinder, the pressure gauge is in the shape of an arc.

[0009] A method for using the recyclable static buried water and soil pressure testing device according to the present invention comprises the following steps:

[0010] S1: Determine the number of the reusable static buried water and soil pressure testing devices according to the test requirements, as well as the type and number of the pressure gauges embedded in each of the reusable static buried water and soil pressure testing devices, the range of the pressure gauges and the length of the acquisition line;

[0011] S2: If the pore water pressure gauge is required, the pore water pressure gauge must be saturated according to the specification requirements before burying, and a water bag must be tied outside the pore water pressure gauge before burying to ensure that the permeable stone of the pore water pressure gauge is in a flooded state;

[0012] S3: According to the number and depth of the recyclable static pressure buried water and soil pressure testing devices to be buried in each hole position, prepare a matching number of the recyclable static pressure buried water and soil pressure testing devices, a plurality of hollow connecting pressure rods and a cone head;

[0013] S4: Determine the hole position to be buried on site. If there is a hard floor on the ground, the hard floor needs to be broken;

[0014] S5: firmly connect the cone head with the internal thread to the connecting head at the lower end of the recyclable static pressure embedded water and soil pressure testing device to be buried at the bottom, and then install the connecting pressure rod section by section on the upper part of the recyclable static pressure embedded water and soil pressure testing device and press it into the rock and soil at the hole position with a static pressure device. If multiple recyclable static pressure embedded water and soil pressure testing devices need to be pressed in, ensure that the splicing position of each recyclable static pressure embedded water and soil pressure testing device on the connecting pressure rod is correct; when each recyclable static pressure embedded water and soil pressure testing device is delivered to the hole position, untie the water bag tied to the pore water pressure gauge; during the installation and pressing process of the connecting pressure rod, always keep the acquisition line passing through the connecting pressure rod and the internal line channel of the recyclable static pressure embedded water and soil pressure testing device;

[0015] S6: When all the connecting rods and the recyclable static pressure buried water and soil pressure testing device are statically pressurized to the designed depth, it is necessary to ensure that the top of the topmost connecting rod is lower than a certain height of the ground surface, and install a protective member at the ground surface position, the protective member is composed of a casing at the bottom and a protective cover at the top, the material of the casing includes concrete, hard PVC pipe or steel pipe, the diameter of the casing is slightly larger than the diameter of the connecting rod, the size of the protective cover matches the casing, and there is an opening on the protective cover, the size of the opening can ensure that all the acquisition lines at the current hole position can pass through it;

[0016] S7: Connecting the acquisition line to an automated acquisition box, wherein the automated acquisition box realizes automated data acquisition and wireless transmission;

[0017] S8: After the data collection is completed, a lifting device is used to pull out and recycle the connecting pressure rod and the recyclable static pressure embedded water and soil pressure testing device, and calibrate and inspect the quality for subsequent reuse.

[0018] The present invention adopts the above technical solution, so it has the following beneficial effects:

[0019] (1) The reusable static pressure embedded water and soil pressure test device of the present invention is deployed by being buried in the original soil body by static pressure. Compared with the drilling and embedding method adopted by conventional water and soil pressure sensors, it can greatly reduce the disturbance to the original soil body, thereby obtaining more reliable data. In addition, this method can greatly reduce the embedding cost, and avoid the mud treatment problems caused by the drilling method, as well as the problems of data distortion or pressurized water upwelling caused by improper water separation of components.

[0020] (2) The reusable static buried water and soil pressure test device of the present invention can be equipped with a pressure gauge on the side, and can flexibly install an earth pressure gauge and a pore water pressure gauge, which is suitable for various testing needs. In addition, multi-faceted testing can obtain the stress state changes of the rock and soil in multiple directions, and can more accurately analyze the stability of the rock and soil and its impact on the normal use and structural safety of buildings.

[0021] (3) After completing the corresponding testing work, the recyclable static pressure embedded water and soil pressure testing device of the present invention can be recovered and reused by lifting equipment, which greatly reduces the testing cost and has the advantages of low carbon and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a recyclable static buried water and soil pressure testing device according to the first embodiment of the present invention;

[0023] Figure 2 This is a schematic structural diagram of a recyclable static buried water and soil pressure testing device according to a second embodiment of the present invention;

[0024] Figure 3 This is a schematic structural diagram of a recyclable static buried water and soil pressure testing device according to a third embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the system structure of a method for using a recyclable static buried water and soil pressure testing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] According to the attached figure Figure 1~Figure 4 , give the preferred embodiments of the present invention, and describe them in detail so that the functions and features of the present invention can be better understood.

[0027] See also Figure 1 and Figure 4 A recyclable static pressure embedded water and soil pressure testing device according to a first embodiment of the present invention comprises an installation assembly 1, a plurality of pressure gauges and a plurality of acquisition lines 4; the installation assembly 1 comprises a sensor fixing part and two connectors, the connectors are connected to the two ends of the sensor fixing part, the sensor fixing part and the connectors are hollowly matched to form a line channel, and the connectors are formed with external threads; a plurality of sensor mounting holes are formed on the periphery of the sensor fixing part, and the pressure gauges are fixed in the sensor mounting holes; the acquisition lines 4 are passed through the line channels and are respectively connected to the pressure gauges.

[0028] The pressure gauge includes an earth pressure gauge 2 and / or a pore water pressure gauge 3 .

[0029] In this embodiment, the sensor fixing piece is in the shape of a cube; four sides of the sensor fixing piece respectively form a sensor mounting hole; and the pressure gauge is in the shape of a circle.

[0030] In the embodiment 1 of the present invention, a recyclable static buried water and soil pressure testing device 5 is provided. The functions of the components involved in the burying process are as follows:

[0031] Recyclable static buried water and soil pressure testing device 5;

[0032] The hollow connecting pressure rod 6 is threadedly connected to the recyclable static pressure embedded water and soil pressure testing device 5, and the connecting pressure rods 6 can also be spliced, so that the recyclable static pressure embedded water and soil pressure testing device 5 can be sent to the depth of the soil layer to be tested by using a static pressure device. During the splicing process, the collection line 4 can pass through the hollow inner tube.

[0033] The cone head 7 with internal threads is installed below the bottommost recyclable static buried water and soil pressure testing device 5, and its main function is to reduce the soil resistance at the bottom during the static buried process.

[0034] A collection line bundle 8 formed by a plurality of collection lines 4 .

[0035] Rock and soil bodies that require water and soil pressure testing 9.

[0036] The protection member 10 of the water and soil pressure test hole is located on the ground surface, and its main function is to prevent the collection line 4 of the device from being damaged due to external interference.

[0037] Automated collection box11.

[0038] A method for using the recyclable static buried water and soil pressure testing device 5 according to an embodiment of the present invention comprises the following steps:

[0039] S1: Determine the number of reusable static buried water and soil pressure test devices 5, as well as the type and number of pressure gauges embedded in each reusable static buried water and soil pressure test device 5, the range of the pressure gauge, and the length of the acquisition line 4 according to the test requirements;

[0040] S2: If the pore water pressure gauge 3 is required, the pore water pressure gauge 3 must be saturated according to the specification requirements before burying, and a water bag must be tied outside the pore water pressure gauge 3 before burying to ensure that the permeable stone of the pore water pressure gauge 3 is in a flooded state;

[0041] S3: According to the number and depth of the reusable static pressure buried water and soil pressure testing devices 5 to be buried in each hole, a matching number of reusable static pressure buried water and soil pressure testing devices 5, a plurality of hollow connecting pressure rods 6 and a cone head 7 are prepared;

[0042] S4: Determine the hole position to be buried on site. If there is a hard floor on the surface, the hard floor needs to be broken;

[0043] S5: firmly connect the cone head 7 with the internal thread to the lower end connector of a recyclable static pressure buried water and soil pressure test device 5 to be buried at the bottom, and then install the connecting pressure rod 6 section by section on the upper part of the recyclable static pressure buried water and soil pressure test device 5 and press it into the rock and soil body 9 at the hole position with the static pressure device. If multiple recyclable static pressure buried water and soil pressure test devices 5 need to be pressed in, ensure that the splicing position of each recyclable static pressure buried water and soil pressure test device 5 in the connecting pressure rod 6 is correct; when each recyclable static pressure buried water and soil pressure test device 5 is delivered to the hole position, untie the water bag tied to the pore water pressure gauge 3; during the installation and pressing process of the connecting pressure rod 6, always keep the acquisition line 4 passing through the connecting pressure rod 6 and the internal line channel of the recyclable static pressure buried water and soil pressure test device 5;

[0044] S6: When all the connecting rods 6 and the reusable static pressure buried water and soil pressure testing device 5 are statically pressed to the designed depth, it is necessary to ensure that the top of the topmost connecting rod 6 is lower than a certain height of the ground surface, and install a protective member 10 at the surface position. The protective member 10 is composed of a casing at the bottom and a protective cover at the top. The material of the casing includes concrete, hard PVC pipe or steel pipe. The diameter of the casing is slightly larger than the diameter of the connecting rod 6. The size of the protective cover matches the casing. There is an opening on the protective cover. The size of the opening can ensure that all the acquisition lines 4 at the current hole position can pass through it;

[0045] S7: Connect the collection line 4 to an automated collection box 11, which realizes automated data collection and wireless transmission;

[0046] S8: After the data collection is completed, a lifting device is used to pull out and recycle the connecting pressure rod 6 and the recyclable static pressure embedded water and soil pressure testing device 5, and calibrate and inspect the quality for subsequent reuse.

[0047] See also Figure 2 The second embodiment of the present invention is a recyclable static buried water and soil pressure testing device, and its structure is basically the same as that of the first embodiment, the difference is that the soil pressure gauge 2 and / or the pore water pressure gauge 3 are square.

[0048] See also Figure 3The structure of a recyclable static buried water and soil pressure testing device according to the second embodiment of the present invention is basically the same as that of the first embodiment, except that:

[0049] The sensor fixing part of the mounting assembly 1 is cylindrical; the side wall of the sensor fixing part is evenly formed with four sensor mounting holes along the circumference. The soil pressure gauge 2 and / or the pore water pressure gauge 3 are arc-shaped.

[0050] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A method for using a recyclable static buried water and soil pressure testing device, characterized in that: The test device comprises a mounting assembly, a plurality of pressure gauges and a plurality of acquisition lines; the mounting assembly comprises a sensor fixing part and two connectors, the connectors are connected to the two ends of the sensor fixing part, the sensor fixing part and the connectors are hollowly matched to form a line channel, and the connectors are formed with external threads; a plurality of sensor mounting holes are formed on the periphery of the sensor fixing part, and the pressure gauges are fixed in the sensor mounting holes; the acquisition lines are arranged in the line channels and are respectively connected to the pressure gauges; the pressure gauges comprise pore water pressure gauges; The method of use comprises the steps of: S1: Determine the number of the reusable static buried water and soil pressure testing devices according to the test requirements, as well as the type and number of the pressure gauges embedded in each of the reusable static buried water and soil pressure testing devices, the range of the pressure gauges and the length of the acquisition line; S2: If the pore water pressure gauge is required, the pore water pressure gauge must be saturated according to the specification requirements before burying, and a water bag must be tied outside the pore water pressure gauge before burying to ensure that the permeable stone of the pore water pressure gauge is in a flooded state; S3: According to the number and depth of the recyclable static pressure buried water and soil pressure testing devices to be buried in each hole position, prepare a matching number of the recyclable static pressure buried water and soil pressure testing devices, a plurality of hollow connecting pressure rods and a cone head; S4: Determine the hole position to be buried on site. If there is a hard floor on the ground, the hard floor needs to be broken; S5: firmly connect the cone head with the internal thread to the connector at the lower end of the recyclable static pressure embedded water and soil pressure test device to be buried at the bottom, and then install the connecting pressure rod section by section on the upper part of the recyclable static pressure embedded water and soil pressure test device and press it into the rock and soil at the hole position with a static pressure device. If multiple recyclable static pressure embedded water and soil pressure test devices need to be pressed in, ensure that each recyclable static pressure embedded water and soil pressure test device is correctly connected to the connecting pressure rod; When each of the recyclable static buried water and soil pressure testing devices is delivered to the hole position, the water binding bag tied to the pore water pressure gauge is untied; During the installation and pressing process of the connecting pressure rod, the acquisition line is always kept passing through the connecting pressure rod and the line channel inside the recyclable static pressure buried water and soil pressure testing device; S6: When all the connecting rods and the recyclable static pressure buried water and soil pressure testing device are statically pressurized to the designed depth, it is necessary to ensure that the top of the topmost connecting rod is lower than a certain height of the ground surface, and install a protective member at the ground surface, the protective member is composed of a casing at the bottom and a protective cover at the top, the casing is made of concrete, hard PVC pipe or steel pipe, the diameter of the casing is slightly larger than the diameter of the connecting rod, the size of the protective cover matches the casing, and there is an opening on the protective cover, the size of the opening can ensure that all the acquisition lines at the current hole position can pass through it; S7: Connecting the acquisition line to an automated acquisition box, wherein the automated acquisition box realizes automated data acquisition and wireless transmission; S8: After the data collection is completed, a lifting device is used to pull out and recycle the connecting pressure rod and the recyclable static pressure embedded water and soil pressure testing device, and calibrate and inspect the quality for subsequent reuse.

2. A method for using a recyclable static buried water and soil pressure testing device, characterized in that: The test device includes a mounting assembly, a plurality of pressure gauges and a plurality of acquisition lines; the mounting assembly includes a sensor fixing part and two connectors, the connectors are connected to the two ends of the sensor fixing part, the sensor fixing part and the connectors are hollowly matched to form a line channel, and the connectors are formed with external threads; a plurality of sensor mounting holes are formed on the periphery of the sensor fixing part, and the pressure gauges are fixed in the sensor mounting holes; the acquisition lines are passed through the line channels and are respectively connected to the pressure gauges; the pressure gauges include pore water pressure gauges; the sensor fixing part is in the shape of a cube or a cylinder; when the sensor fixing part is in the shape of a cube, one of the sensor mounting holes is formed on the four sides of the sensor fixing part; when the sensor fixing part is in the shape of a cylinder, four of the sensor mounting holes are evenly formed on the side wall of the sensor fixing part along the circumferential direction; The method of use comprises the steps of: S1: Determine the number of the reusable static buried water and soil pressure testing devices according to the test requirements, as well as the type and number of the pressure gauges embedded in each of the reusable static buried water and soil pressure testing devices, the range of the pressure gauges and the length of the acquisition line; S2: If the pore water pressure gauge is required, the pore water pressure gauge must be saturated according to the specification requirements before burying, and a water bag must be tied outside the pore water pressure gauge before burying to ensure that the permeable stone of the pore water pressure gauge is in a flooded state; S3: According to the number and depth of the recyclable static pressure buried water and soil pressure testing devices to be buried in each hole position, prepare a matching number of the recyclable static pressure buried water and soil pressure testing devices, a plurality of hollow connecting pressure rods and a cone head; S4: Determine the hole position to be buried on site. If there is a hard floor on the ground, the hard floor needs to be broken; S5: firmly connect the cone head with the internal thread to the connector at the lower end of the recyclable static pressure embedded water and soil pressure test device to be buried at the bottom, and then install the connecting pressure rod section by section on the upper part of the recyclable static pressure embedded water and soil pressure test device and press it into the rock and soil at the hole position with a static pressure device. If multiple recyclable static pressure embedded water and soil pressure test devices need to be pressed in, ensure that each recyclable static pressure embedded water and soil pressure test device is correctly connected to the connecting pressure rod; When each of the recyclable static buried water and soil pressure testing devices is delivered to the hole position, the water binding bag tied to the pore water pressure gauge is untied; During the installation and pressing process of the connecting pressure rod, the acquisition line is always kept passing through the connecting pressure rod and the line channel inside the recyclable static pressure buried water and soil pressure testing device; S6: When all the connecting rods and the recyclable static pressure buried water and soil pressure testing device are statically pressurized to the designed depth, it is necessary to ensure that the top of the topmost connecting rod is lower than a certain height of the ground surface, and install a protective member at the ground surface, the protective member is composed of a casing at the bottom and a protective cover at the top, the casing is made of concrete, hard PVC pipe or steel pipe, the diameter of the casing is slightly larger than the diameter of the connecting rod, the size of the protective cover matches the casing, and there is an opening on the protective cover, the size of the opening can ensure that all the acquisition lines at the current hole position can pass through it; S7: Connecting the acquisition line to an automated acquisition box, wherein the automated acquisition box realizes automated data acquisition and wireless transmission; S8: After the data collection is completed, a lifting device is used to pull out and recycle the connecting pressure rod and the recyclable static pressure embedded water and soil pressure testing device, and calibrate and inspect the quality for subsequent reuse.

3. A method for using a recyclable static buried water and soil pressure testing device, characterized in that: The test device includes a mounting assembly, a plurality of pressure gauges and a plurality of acquisition lines; the mounting assembly includes a sensor fixing part and two connectors, the connectors are connected to the two ends of the sensor fixing part, the sensor fixing part and the connectors are hollow and matched to form a line channel, and the connectors are formed with external threads; a plurality of sensor mounting holes are formed on the periphery of the sensor fixing part, and the pressure gauges are fixed in the sensor mounting holes; the acquisition lines are passed through the line channels and are respectively connected to the pressure gauges; the pressure gauges include pore water pressure gauges; the sensor fixing part is in the shape of a cube or a cylinder; when the sensor fixing part is in the shape of a cube, one of the sensor mounting holes is formed on the four sides of the sensor fixing part respectively; when the sensor fixing part is in the shape of a cylinder, four of the sensor mounting holes are evenly formed on the side walls of the sensor fixing part along the circumferential direction; when the sensor fixing part is in the shape of a cube, the pressure gauge is in the shape of a circle or a square; when the sensor fixing part is in the shape of a cylinder, the pressure gauge is in the shape of an arc; The method of use comprises the steps of: S1: Determine the number of the reusable static buried water and soil pressure testing devices according to the test requirements, as well as the type and number of the pressure gauges embedded in each of the reusable static buried water and soil pressure testing devices, the range of the pressure gauges and the length of the acquisition line; S2: If the pore water pressure gauge is required, the pore water pressure gauge must be saturated according to the specification requirements before burying, and a water bag must be tied outside the pore water pressure gauge before burying to ensure that the permeable stone of the pore water pressure gauge is in a flooded state; S3: According to the number and depth of the recyclable static pressure buried water and soil pressure testing devices to be buried in each hole position, prepare a matching number of the recyclable static pressure buried water and soil pressure testing devices, a plurality of hollow connecting pressure rods and a cone head; S4: Determine the hole position to be buried on site. If there is a hard floor on the ground, the hard floor needs to be broken; S5: firmly connect the cone head with the internal thread to the connector at the lower end of the recyclable static pressure embedded water and soil pressure test device to be buried at the bottom, and then install the connecting pressure rod section by section on the upper part of the recyclable static pressure embedded water and soil pressure test device and press it into the rock and soil at the hole position with a static pressure device. If multiple recyclable static pressure embedded water and soil pressure test devices need to be pressed in, ensure that each recyclable static pressure embedded water and soil pressure test device is correctly connected to the connecting pressure rod; When each of the recyclable static buried water and soil pressure testing devices is delivered to the hole position, the water binding bag tied to the pore water pressure gauge is untied; During the installation and pressing process of the connecting pressure rod, the acquisition line is always kept passing through the connecting pressure rod and the line channel inside the recyclable static pressure buried water and soil pressure testing device; S6: When all the connecting rods and the recyclable static pressure buried water and soil pressure testing device are statically pressurized to the designed depth, it is necessary to ensure that the top of the topmost connecting rod is lower than a certain height of the ground surface, and install a protective member at the ground surface, the protective member is composed of a casing at the bottom and a protective cover at the top, the casing is made of concrete, hard PVC pipe or steel pipe, the diameter of the casing is slightly larger than the diameter of the connecting rod, the size of the protective cover matches the casing, and there is an opening on the protective cover, the size of the opening can ensure that all the acquisition lines at the current hole position can pass through it; S7: Connecting the acquisition line to an automated acquisition box, wherein the automated acquisition box realizes automated data acquisition and wireless transmission; S8: After the data collection is completed, a lifting device is used to pull out and recycle the connecting pressure rod and the recyclable static pressure embedded water and soil pressure testing device, and calibrate and inspect the quality for subsequent reuse.

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