Installation structure and mode of vertical tension wire telescopic settlement protection tube

Abstract

The invention discloses an installation structure and mode of a vertical tension wire telescopic settlement protection pipe, and aims to solve the technical problems that at present, a pipeline connection part is sealed, an indium steel wire enters an opening part in a pipeline to be sealed, sundries fall into the pipe to cause the indium steel wire to be wound, and the indium steel wire is marked and is easy to incline during installation. The device structurally comprises a measuring rod assembly and a measuring assembly, the measuring rod assembly comprises two outer protection pipes, end point indium steel wires, a settlement anchor plate and a batholith base, one ends of the outer protection pipes are fixedly installed on the batholith base, and the settlement anchor plate is connected with the outer protection pipes through the end point indium steel wires. According to the invention, pipeline materials are selected, a seamless steel pipe which meets the national standard and is subjected to rust-proof treatment is selected as a main protection pipeline of the system, a pipeline connecting part is sealed by adopting a sealing ring, the sealing effect meets the design requirement through a test, and meanwhile, the pipeline is effectively prevented from sliding down through friction force between the selected sealing ring and the pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of settlement protection pipes, and in particular to an installation structure and method of a vertical tensioning line telescopic settlement protection pipe. Background Art

[0002] The earth-core rockfill dams with a dam height of more than 150m that are similar to this project and have been built or are under construction in China include the Xiaolangdi Hydropower Project on the Yellow River (the maximum dam height is 160m, and the survival rate of monitoring instruments is less than 70%) and the Pubugou Hydropower Station Project (the maximum dam height is 186m, and the survival rate of monitoring instruments is less than 85.6%). With the continuous increase in the construction height of earth-rock dams and the complexity and changeability of construction conditions, the performance indicators of safety monitoring instruments and their ability to adapt to harsh environmental conditions will become increasingly higher, which will inevitably require the transformation of conventional monitoring instruments and equipment whose performance is basically at the limit, or the development and research of new monitoring instruments and equipment.

[0003] In the dam safety monitoring design, most monitoring projects, including the monitoring of dam settlement and deformation, are still based on traditional monitoring methods and means. The settlement and deformation monitoring design of the Shuangjiangkou Hydropower Station project uses water tube settlement meters, electromagnetic settlement meters, beam settlement meters and other monitoring instruments to monitor the corresponding vertical displacement inside the core wall dam body. These monitoring methods and means are mature and reliable, but they are rarely successfully applied in high rockfill dams. In the actual application process, many technical problems are bound to be encountered. Dam settlement and internal stress are important control indicators that affect the quality of earth-rock dams during construction and safety during operation. For high rockfill dams, under the action of high stress, compared with other rockfill dams, their deformation and stress changes are not only greater, but also some abnormal problems may occur.

[0004] In order to solve the problem of successful application of settlement monitoring in high rockfill dams, combined with the main reasons for the failure of traditional monitoring instruments, it is of great significance to carry out research on the application of settlement and deformation monitoring instruments for rockfill dams.

[0005] According to the design, the dam settlement of Shuangjiangkou Hydropower Station is 4.04m, the maximum horizontal displacement downstream is 1.41m; the seepage slope of the core wall top is 1.23, the maximum escape slope on the downstream side is 3.01, the maximum contact slope between the core wall and the concrete base is 2.45; the maximum principal stress of the core wall is 6.50MPa and other dam engineering indicators have put forward higher requirements for the dam safety monitoring design, monitoring instrument and equipment selection, installation and burial process and its protection measures. At present, the settlement of the core wall of the built project is usually monitored by electromagnetic settlement instrument, but the traditional electromagnetic settlement instrument has two main disadvantages:

[0006] ① The electromagnetic settlement instrument has high requirements on the buried accuracy of the settlement pipe. The factors such as the extrusion, excessive bending and stuck hole of the settlement pipe may lead to the inability to observe normally, which is more obvious in high core wall rockfill dam;

[0007] ② The electromagnetic sedimentation ring is a magnetic body. If it is underwater for a long time after water storage, it may cause the magnetic body to demagnetize, which is not conducive to permanent monitoring. Therefore, a new technical solution needs to be designed to solve this problem. Summary of the invention

[0008] The purpose of the present invention is to provide an installation structure and method for a vertical tensioning line telescopic settlement protection pipe to solve the current technical problems of sealing the pipeline connection part, sealing the opening part where the indium steel wire enters the pipeline, entanglement of the indium steel wire caused by debris falling into the pipe, marking on the indium steel wire and easy tilting during installation.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an installation structure and method for a telescopic settlement protection tube of a vertical tension line, including a measuring rod assembly and a measuring assembly, the measuring rod assembly including two outer protective tubes, an end point indium steel wire, a settlement anchor plate and a rock foundation base, one end of the outer protective tube is fixedly installed on the rock foundation base, the settlement anchor plate is connected to the outer protective tube through the end point indium steel wire, the measuring assembly includes an indium wire guide wheel group, a sensor bracket system, an indium steel wire and a vertical weight, the indium wire guide wheel group and the sensor bracket system are installed on a carrier, one end of the indium steel wire passes through a through slot, and the sensor bracket system is fixedly connected to one end of the vertical weight.

[0010] As a preferred embodiment of the present invention, the two outer protective tubes are connected to a telescopic tube via a connecting sleeve protective ring, and both ends of the telescopic tube are connected to a first sealing ring via a limiting ring.

[0011] As a preferred embodiment of the present invention, the inner diameter of the limiting ring is welded to the outer surfaces at both ends of the telescopic tube, the first sealing ring is symmetrically fixedly connected to both sides of the outer surface of the limiting ring, and the limiting ring is slidably connected to the inner wall of the outer protective tube through the first sealing ring.

[0012] As a preferred embodiment of the present invention, one end of the endpoint indium steel wire is fixedly connected to one end of the settlement anchor plate, and the other end of the endpoint indium steel wire passes through the interior of the protective seal and the through hole, and extends to the top end of the outer protective tube and is fixedly connected to the other end of the indium steel wire.

[0013] As a preferred embodiment of the present invention, the sensor bracket system is symmetrically installed at the edges of both ends of the carrier, one end of the guide wheel on the indium wire guide wheel group corresponds to the position of the through slot, and the through slot is symmetrically opened in the middle part of the carrier.

[0014] As a preferred embodiment of the present invention, the connecting sleeve protective ring is provided with two groups, and each group is provided with two, the notch inside the connecting sleeve protective ring is T-shaped, the inner wall of the connecting sleeve protective ring is connected with a sealing gasket through a plug-in groove, connecting plates are welded on both sides of the outside of the connecting sleeve protective ring, and fixing bolts and nuts are installed on the connecting plates.

[0015] As a preferred embodiment of the present invention, one end of the connecting sleeve protective ring is attached to the outer surface of the outer protective tube, and the other end of the connecting sleeve protective ring is attached to the outer surface of the telescopic tube through a sealing gasket, two plug-in grooves are provided and communicated with the inner wall of the connecting sleeve protective ring, and the sealing gasket is inserted into the inner wall of the plug-in groove, wherein a part of the sealing gasket exceeds the inner wall of the connecting sleeve protective ring, one end of the fixing bolt is abutted against one side of one of the connecting plates, and the other end of the fixing bolt passes through the interior of the other connecting plate, and the nut is connected to the outside of the fixing bolt through a thread and abuts against one side of the other connecting plate.

[0016] As a preferred embodiment of the present invention, one end of the protective seal covers the outside of the through hole and is connected to the internal thread of the telescopic tube, two second sealing rings are fixedly connected to the interior of one end of the protective seal, the interior of the other end of the protective seal is hollow, and a plurality of high-pressure nozzles are installed on the inner wall of the other end of the protective seal, and one end of the plurality of high-pressure nozzles is at an angle of 30 degrees to the inner wall of the protective seal.

[0017] As a preferred embodiment of the present invention, one hollow end of the protective seal is externally sealed and connected to a water supply pipe, the other end of the water supply pipe is sealed and connected to a water pump, the other end of the water pump is connected to an anti-blocking head through a water pump pipe, the water pump is fixedly connected to both ends of the balance plate, and the horizontal plate is sleeved on the outside of the outer protective pipe and fixedly connected to the outside thereof.

[0018] As a preferred embodiment of the present invention, the installation method of the vertical tensioning line telescopic settlement protection pipe is as follows:

[0019] S1. First, the distance from the base point to the observation platform mark is matched with the length of the steel wire, and each wire is 30m long, coiled separately, and tied with the number plate of the measuring point. Avoid crossing or bending the coiled steel wire;

[0020] S2. Then, assemble the steel wire from the protective tube at one end of the measuring point, through the protective tube, the mud guard ring on the tube end, the compression nut, the cable tray, the expansion joint, the distribution tray on the joint, the compression ring on the protective tube at the other end of the expansion joint, the compression nut, and the anchor plate and soft steel wire rope at the expansion joint at the measuring point;

[0021] S3. Then mix the polyurethane material with river water in a ratio of 1:25 and add the protective pipe for 3 minutes to cure;

[0022] S4. Finally, the steel wires of each measuring point are gathered to the horizontal displacement measuring device of the observation platform installed at the fixed mark point.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention selects seamless steel pipes that meet national standards for rust prevention as the main protective pipes of the system through the selection of pipe materials. Pipe connection parts are sealed with sealing rings. After testing, the sealing effect meets the design requirements. At the same time, the friction between the selected sealing ring and the pipe effectively prevents the pipe from sliding down.

[0025] 2. The present invention mixes polyurethane material and water in a ratio of 1:25 and fills the mixture into the pipeline. After filling, the indium steel wires in the pipeline do not contact each other, and at the same time, the possibility of debris entering the pipeline and causing the steel wire to be entangled is effectively isolated, and the filled polyurethane material does not affect the normal movement of the steel wire.

[0026] 3. When the telescopic tube is connected to the outer protective tube, the connecting sleeve protective ring is firstly fitted onto the outside of the telescopic tube and the outer protective tube, and then the connecting sleeve protective ring is fixed by the fixing bolt and the nut. When the telescopic tube slides in the outer protective tube, the connecting sleeve protective ring can seal the joint between the telescopic tube and the outer protective tube through the cooperation of the sealing gasket, which effectively avoids the phenomenon that foreign matter and mud from the outside enter the protective tube during the telescopic tube extension and retraction in the outer protective tube, improves the sealing performance of the protective tube during use, and when the sealing gasket needs to be replaced, it can be directly pulled out from the inside of the plug-in slot, and a new sealing gasket can be inserted and installed, which improves the convenience of replacing the sealing gasket.

[0027] 4. The present invention has installed a transverse balance plate on the vertical pipeline through experiments, which effectively ensures that the pipeline does not tilt or deform.

[0028] 5. In the present invention, when the end point indium steel wire moves in the through hole, it will pass through the protective seal. At this time, the second sealing ring in the protective seal will seal the end point indium steel wire and the inner wall of the protective seal, so as to further improve the sealing effect of the protection tube. In this process, the water pump will suck the water in the dam into the water supply pipe through the water pump pipe, and then transport it to the inside of the protective seal, and then spray it out by multiple high-pressure nozzles, so as to wash away the foreign matter and mud attached to the outside of the end point indium steel wire, and one end of the multiple high-pressure nozzles is at a 30-degree angle to the inner wall of the protective seal, which effectively avoids the phenomenon of incomplete washing of foreign matter and mud on the end point indium steel wire, and further prevents foreign matter and mud from entering the interior of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a schematic diagram of the telescopic tube structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the connecting sleeve retaining ring of the present invention;

[0033] Figure 4 It is a schematic diagram of the structure of the second sealing ring of the present invention;

[0034] Figure 5 It is a schematic diagram of the structure of the high-pressure nozzle of the present invention;

[0035] Figure 6 It is a schematic diagram of the installation of the observation platform of the present invention;

[0036] In the figure: 1, outer protective tube; 11, balance plate; 12, settlement anchor plate; 13, rock foundation base; 14, end point indium steel wire; 15, indium wire guide wheel group; 16, sensor bracket system; 17, indium steel wire; 18, vertical weight; 19, carrier;

[0037] 2. through groove; 21. sealing gasket; 22. connecting sleeve guard ring; 23. telescopic tube; 24. limiting ring; 25. first sealing ring; 26. protective sealing element; 27. through hole; 28. plug-in groove;

[0038] 3. Connecting plate; 31. Fixing bolt; 32. Nut; 33. Second sealing ring; 34. High-pressure nozzle; 35. Water supply pipe; 36. Water pump; 37. Water pipe; 38. Anti-blocking head. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] Example 1: Installation structure and method of telescopic settlement protection pipe of vertical tensioning line, see Figures 1 to 6, including a measuring rod assembly and a measuring assembly, the measuring rod assembly includes two outer protective tubes 1, an end point indium steel wire 14, a settlement anchor plate 12 and a rock foundation base 13, one end of the outer protective tube 1 is fixedly installed on the rock foundation base 13, the settlement anchor plate 12 is connected to the outer protective tube 1 through the end point indium steel wire 14, the measuring assembly includes an indium wire guide wheel group 15, a sensor bracket system 16, an indium steel wire 17 and a vertical weight 18, the indium wire guide wheel group 15 and the sensor bracket system 16 are installed on a carrier 19, one end of the indium steel wire 17 passes through the through slot 2, the sensor bracket system 16 is fixedly connected to one end of the vertical weight 18, one end of the end point indium steel wire 14 is fixedly connected to one end of the settlement anchor plate 12, the other end of the end point indium steel wire 14 passes through the inside of the protective seal 26 and the through hole 27, and extends to the top of the outer protective tube 1 and is fixedly connected to the other end of the indium steel wire 17, the sensor bracket system 16 Symmetrically installed at the edges of both ends of the carrier 19, one end of the guide wheel on the indium wire guide wheel group 15 corresponds to the position of the through slot 2, and the through slot 2 is symmetrically opened in the middle part of the carrier 19. A measuring rod assembly is vertically buried at the elevation of the measuring point. The measuring rod assembly is composed of a seamless steel pipe that can be freely extended and retracted and has been treated with rust prevention. A stainless steel indium tile alloy steel wire with a very small expansion coefficient is led out from the measuring point. One end of the indium steel wire 17 is fixed on the settlement anchor plate 12, and the other end is led to the fixed mark point in the observation room, passes through the guide pulley, and a vertical weight 18 is tied at its terminal. When the measuring point moves, it drives the settlement anchor plate 12 and the indium steel wire 17 to move. The relative displacement is measured at the fixed mark point with a vernier caliper, and the settlement displacement of the measuring point can be calculated. The displacement of the measuring point is equal to the difference between the reading at a certain time t and the initial reading, plus the displacement of the corresponding fixed mark point in the observation room. The displacement of the fixed mark point in the observation room is measured by the sight line at both ends of the dam.

[0042] For details, see Figure 2 The two outer protective tubes 1 are connected with a telescopic tube 23 through a connecting sleeve protective ring 22, and the two ends of the telescopic tube 23 are connected with a first sealing ring 25 through a limiting ring 24. The inner diameter of the limiting ring 24 is welded to the outer surface of the two ends of the telescopic tube 23, and the first sealing ring 25 is symmetrically fixedly connected to the two sides of the outer surface of the limiting ring 24. The limiting ring 24 is slidably connected to the inner wall of the outer protective tube 1 through the first sealing ring 25. Through the selection of pipeline materials, a seamless steel pipe with rust-proof treatment that meets the national standard is selected as the main protective pipeline of the system. The pipeline connection part is sealed with a sealing ring. After testing, the sealing effect meets the design requirements. At the same time, the friction between the selected sealing ring and the pipeline effectively keeps the pipeline from sliding down.

[0043] It is worth noting that see Figure 1 and Figure 3, there are two groups of connecting sleeve retaining rings 22, one group is provided with two, the notch inside the connecting sleeve retaining ring 22 is T-shaped, the inner wall of the connecting sleeve retaining ring 22 is connected to the sealing gasket 21 through the plug-in groove 28, connecting plates 3 are welded on both sides of the outside of the connecting sleeve retaining ring 22, and fixing bolts 31 and nuts 32 are installed on the connecting plate 3. One end of the connecting sleeve retaining ring 22 is attached to the outer surface of the outer protective tube 1, and the other end of the connecting sleeve retaining ring 22 is attached to the outer surface of the telescopic tube 23 through the sealing gasket 21. There are two plug-in grooves 28, which are communicated with the inner wall of the connecting sleeve retaining ring 22, and the sealing gasket 21 is plugged into the inner wall of the plug-in groove 28, wherein a part of the sealing gasket 21 exceeds the inner wall of the connecting sleeve retaining ring 22, one end of the fixing bolt 31 is against one side of a connecting plate 3, and the other end of the fixing bolt 31 passes through the inside of the other connecting plate 3, and the nut 32 is threaded It is connected to the outside of the fixing bolt 31 and is placed on one side of another connecting plate 3. When the telescopic tube 23 is connected to the outer protective tube 1, the connecting sleeve protective ring 22 is first fitted onto the outside of the telescopic tube 23 and the outer protective tube 1, and then the connecting sleeve protective ring 22 is fixed by the fixing bolt 31 and the nut 32. When the telescopic tube 23 slides in the outer protective tube 1, the connecting sleeve protective ring 22 will seal the connection between the telescopic tube 23 and the outer protective tube 1 through the cooperation of the sealing gasket 21, which effectively avoids the phenomenon that foreign matter and mud from the outside enter the protective tube during the telescopic tube 23 in the outer protective tube 1. The sealing performance of the protective tube during use is improved. Moreover, when the sealing gasket 21 needs to be replaced, it can be directly pulled out from the inside of the plug-in slot 28, and the new sealing gasket 21 can be inserted and installed, which improves the convenience of replacing the sealing gasket 21.

[0044] It is worth noting that see Figure 1 , Figure 4 and Figure 5One end of the protective seal 26 is covered over the outside of the through hole 27 and is connected to the internal thread of the telescopic tube 23. Two second sealing rings 33 are fixedly connected to the inside of one end of the protective seal 26. The inside of the other end of the protective seal 26 is hollow. A plurality of high-pressure nozzles 34 are installed on the inner wall of the other end of the protective seal 26. One end of the plurality of high-pressure nozzles 34 is at an angle of 30 degrees to the inner wall of the protective seal 26. A water supply pipe 35 is sealedly connected to the outside of the hollow end of the protective seal 26. A water pump 36 is sealedly connected to the other end of the water supply pipe 35. The other end of the water pump 36 is connected to an anti-blocking head 38 through a water pumping pipe 37. The water pump 36 is fixedly connected to the two ends of the balance plate 11. The horizontal plate is sleeved on the outside of the outer protective tube 1 and is fixedly connected to the outside thereof. When When the end point indium steel wire 14 moves in the through hole 27, it will pass through the protective seal 26. At this time, the second sealing ring 33 in the protective seal 26 will seal the end point indium steel wire 14 and the inner wall of the protective seal 26, so as to further improve the sealing effect of the protective tube. In this process, the water pump 36 will suck the water in the dam into the water supply pipe 35 through the water pump pipe 37, and then transport it to the inside of the protective seal 26, and then spray it out by multiple high-pressure nozzles 34, so as to flush the foreign matter and mud attached to the outside of the end point indium steel wire 14, and one end of the multiple high-pressure nozzles 34 is at a 30-degree angle to the inner wall of the protective seal 26, which effectively avoids the phenomenon of incomplete flushing of foreign matter and mud on the end point indium steel wire 14, and further prevents foreign matter and mud from entering the interior of the pipeline.

[0045] Example 2: The installation structure and method of the telescopic settlement protection pipe of the vertical tensioning line, the installation steps are as follows:

[0046] S1. First, the distance from the base point to the observation platform mark is matched with the length of the steel wire, and each wire is 30m long, coiled separately, and tied with the number plate of the measuring point. Avoid crossing or bending the coiled steel wire;

[0047] S2. Then, assemble the steel wire from the protective tube at one end of the measuring point, through the protective tube - the mud guard ring on the tube end sleeve, the compression nut - the wire rack - the expansion tube 23 joint - the distribution plate is installed on the joint, the compression ring is put on the protective tube at the other end of the expansion joint - the compression nut is tightened, and the anchor plate and soft steel wire rope are installed at the expansion joint at the measuring point;

[0048] S3. Then mix the polyurethane material with river water in a ratio of 1:25 and add the protective pipe for 3 minutes to cure;

[0049] S4. Finally, the steel wires of each measuring point are collected on the horizontal displacement measuring device of the observation platform installed at the fixed mark point (the installation of the observation platform is as follows Figure 6 shown).

[0050] It should be noted that: after the instrument is installed, a test is carried out. If the instrument works normally, backfilling can be carried out. First, a formwork is erected at the anchor plate to cast a concrete block that fully covers the anchor plate. After the concrete solidifies and the formwork is removed, backfilling is carried out while curing. The area around the pipeline is carefully backfilled manually and compacted to the density of the surrounding dam body. In the fine material part, the original dam material is backfilled. In the granular material part, backfill and compaction are carried out in the form of reverse filtration. Fine granular material is used to fill densely around the instrument and equipment. When the backfill exceeds about 1.8m above the top surface of the instrument, normal construction and filling of the dam can be carried out.

[0051] When the observation room is located on the upstream and downstream dam slopes, fixed marks are set up on both sides of the dam body, and the position of the displacement meter marks in the observation room is measured by the sight line method. When the observation room is located on both sides, fixed marks are set up on the bedrock, and the marks are observed and recorded after the buried installation is completed.

[0052] Estimate the possible horizontal displacement direction and size of each measuring point, adjust the observation range, and add a total weight of 20-50kg for the steel wire to pass through the guide wheel (the steel wire load-bearing capacity is 150kg)

[0053] Take the reading approximately every 10 seconds after adding weight, repeat until the last two readings remain unchanged, and make a record.

[0054] The diameter of the indium steel wire is 2mm and its shape is round. The indium steel wire is the main measurement and conduction component of the monitoring system. Therefore, a permanent mark is made on the surface of the steel wire, which means that the steel wire cannot be damaged to cause the risk of wire breakage, but the mark must be clearly visible. Therefore, through various channels and multiple tests, a high-precision fiber laser marking machine is used to mark the spherical surface of the steel wire. After marking, it is clearly visible to the naked eye. During marking, an auxiliary coating is added to the surface of the steel wire to protect the steel wire even if the marking is clear. After marking, the steel wire is subjected to a tensile test, and the yield strength of the steel wire at the marked position meets the standard requirements.

[0055] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0056] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The installation structure of the telescopic settlement protection pipe of the vertical tensioning line includes a measuring rod assembly and a measuring assembly, which is characterized by: The measuring rod assembly comprises two outer protective tubes (1), an end point indium steel wire (14), a settlement anchor plate (12) and a rock foundation base (13); one end of the outer protective tube (1) is fixedly mounted on the rock foundation base (13); the settlement anchor plate (12) is connected to the outer protective tube (1) via the end point indium steel wire (14); the measuring assembly comprises an indium wire guide wheel group (15), a sensor bracket system (16), an indium steel wire (17) and a vertical weight (18); the indium wire guide wheel group (15) and the sensor bracket system (16) are mounted on a carrier (19); one end of the indium steel wire (17) passes through a through slot (2); and the sensor bracket system (16) is fixedly connected to one end of the vertical weight (18).

2. The installation structure of the telescopic settlement protection pipe of the vertical tensioning line according to claim 1 is characterized in that: The two outer protective tubes (1) are connected to a telescopic tube (23) via a connecting sleeve protective ring (22), and both ends of the telescopic tube (23) are connected to a first sealing ring (25) via a limiting ring (24).

3. The installation structure of the telescopic settlement protection pipe of the vertical tensioning line according to claim 2 is characterized in that: The inner diameter of the limiting ring (24) is welded to the outer surfaces of both ends of the telescopic tube (23); the first sealing ring (25) is symmetrically fixedly connected to both sides of the outer surface of the limiting ring (24); and the limiting ring (24) is slidably connected to the inner wall of the outer protective tube (1) via the first sealing ring (25).

4. The installation structure of the telescopic settlement protection pipe of the vertical tensioning line according to claim 1 is characterized in that: One end of the endpoint indium steel wire (14) is fixedly connected to one end of the sinking anchor plate (12), and the other end of the endpoint indium steel wire (14) passes through the interior of the protective seal (26) and the through hole (27), and extends to the top end of the outer protective tube (1) and is fixedly connected to the other end of the indium steel wire (17).

5. The installation structure of the telescopic settlement protection pipe of the vertical tensioning line according to claim 1 is characterized in that: The sensor bracket system (16) is symmetrically installed at the edges of both ends of the carrier (19), one end of the guide wheel on the indium wire guide wheel group (15) corresponds to the position of the through slot (2), and the through slot (2) is symmetrically opened in the middle part of the carrier (19).

6. The installation structure of the telescopic settlement protection pipe of the vertical tensioning line according to claim 2 is characterized in that: The connecting sleeve retaining ring (22) is provided in two groups, with one group having two members. The notch inside the connecting sleeve retaining ring (22) is T-shaped. The inner wall of the connecting sleeve retaining ring (22) is connected to a sealing gasket (21) via a plug-in groove (28). Connecting plates (3) are welded on both sides of the outside of the connecting sleeve retaining ring (22), and fixing bolts (31) and nuts (32) are installed on the connecting plates (3).

7. The installation structure of the telescopic settlement protection pipe of the vertical tensioning line according to claim 6 is characterized in that: One end of the connecting sleeve protective ring (22) is fitted on the outer surface of the outer protective tube (1), and the other end of the connecting sleeve protective ring (22) is fitted on the outer surface of the telescopic tube (23) through a sealing gasket (21). Two plug-in slots (28) are provided and communicate with the inner wall of the connecting sleeve protective ring (22). The sealing gasket (21) is plugged into the inner wall of the plug-in slot (28), wherein a part of the sealing gasket (21) protrudes from the inner wall of the connecting sleeve protective ring (22). One end of the fixing bolt (31) is abutted against one side of one of the connecting plates (3), and the other end of the fixing bolt (31) passes through the interior of the other connecting plate (3). The nut (32) is connected to the outside of the fixing bolt (31) through a thread and is abutted against one side of the other connecting plate (3).

8. The installation structure of the telescopic settlement protection pipe of the vertical tensioning line according to claim 4 is characterized in that: One end of the protective seal (26) covers the outside of the through hole (27) and is connected to the internal thread of the telescopic tube (23); two second sealing rings (33) are fixedly connected to the interior of one end of the protective seal (26); the interior of the other end of the protective seal (26) is hollow; a plurality of high-pressure nozzles (34) are installed on the inner wall of the other end of the protective seal (26); one end of the plurality of high-pressure nozzles (34) is at an angle of 30 degrees to the inner wall of the protective seal (26).

9. The installation structure of the telescopic settlement protection pipe of the vertical tensioning line according to claim 8 is characterized in that: One hollow end of the protective seal (26) is externally sealed with a water supply pipe (35), the other end of the water supply pipe (35) is sealed with a water pump (36), the other end of the water pump (36) is connected to an anti-blocking head (38) via a water pump pipe (37), the water pump (36) is fixedly connected to both ends of the balance plate (11), and the flat horizontal plate is sleeved on the outside of the outer protective tube (1) and is fixedly connected to the outside thereof.

10. The installation method of the telescopic settlement protection pipe of the vertical tensioning line according to claim 1 is characterized in that: The installation steps are as follows: S1. First, the distance from the base point to the observation platform mark is matched with the length of the steel wire, and each wire is 30m long, coiled separately, and tied with the number plate of the measuring point. Avoid crossing or bending the coiled steel wire; S2. Then, assemble the steel wire from the protective tube at one end of the measuring point, through the protective tube, the mud guard ring on the tube end, the compression nut, the cable tray, the expansion joint, the distribution tray on the joint, the compression ring on the protective tube at the other end of the expansion joint, the compression nut, and the anchor plate and soft steel wire rope at the expansion joint at the measuring point; S3. Then mix the polyurethane material with river water in a ratio of 1:25 and add the protective pipe for 3 minutes to cure; S4. Finally, the steel wires of each measuring point are gathered to the horizontal displacement measuring device of the observation platform installed at the fixed mark point.

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