Series hydraulic settlement measuring device for super high-rise building

Abstract

The utility model discloses a series connection type hydraulic subsidence measuring device for super high-rise building, it includes a liquid storage tank, n measuring module and electric cabinet, each measuring module is through multistage infusion pipe and is connected in series with the liquid storage tank and forms a loop, each measuring module is through multistage cable and is connected in series with the electric cabinet, the subsidence measuring device still includes n protection box and n-1 middle section protection pipe for being buried in the bottom of foundation bottom plate, and each middle section protection pipe is fixed between two adjacent protection box, the first protection box front end is equipped with the front section protection pipe for extending to permanent area, and the last protection box rear end is equipped with the rear section protection pipe for extending to permanent area, each measuring module is contained in the box body of corresponding protection box, and each infusion pipe and the cable line of same section position are contained in the protection pipe of same section position. The measuring device can arrange each measuring module in the lower part of foundation bottom plate, thereby intervening in advance, and the settlement amount of foundation bottom plate is detected.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for super high-rise buildings, specifically a series hydraulic settlement measurement device for ultra-thick concrete foundation slabs of super high-rise buildings. Background Technology

[0002] During the construction of high-rise buildings, settlement monitoring is required over a period of time. The actual settlement is measured (e.g., 88mm), and the estimated settlement (e.g., 80mm) is subtracted to obtain the actual deviation (e.g., 8mm). This deviation is then compared to the allowable deviation of ±10mm specified in the regulations to ensure that the actual deviation does not exceed the allowable deviation and meets building safety standards. Currently, the industry commonly uses levels or total stations to measure settlement. However, levels or total stations have large measurement errors, requiring manual measurement point by point, which is time-consuming, labor-intensive, and has low accuracy. Therefore, the industry also hopes to use hydraulic settlement meters, which offer higher accuracy and automated measurement capabilities, to measure building settlement.

[0003] The hydraulic settling meter itself is a very mature existing technology. It includes a storage tank, multiple measuring modules, and an electrical control box. The electrical control box contains a data acquisition unit and a main controller. The storage tank and electrical control box are installed in a permanent area outside the settling zone, that is, an area independent of the building and not subject to relative settlement with the building, such as a fixed road surface far away from the building's foundation pit. The series-connected measuring modules are installed within the settling zone and settle synchronously with the building. Each measuring module is connected in series with the storage tank via multiple segments of infusion pipes to form a circuit. Each measuring module is connected in series with the electrical control box via multiple segments of cable. Each measuring module contains a sensing membrane and a full-bridge silicon wafer. When the measuring module at any point settles, it changes the height difference between the module and the storage tank, causing a change in the pressure of the sensing membrane of the module. This causes the full-bridge silicon wafer to deform and generate an electrical signal. The electrical signal is transmitted to the data acquisition unit in the electrical control box via the cable, which can then measure the amount of settlement change at that point.

[0004] Each measuring module also contains a shut-off valve, which is connected to the main controller. If the pressure in a module suddenly drops, it indicates a malfunction in that module or a leak in the infusion tubing downstream of it. The main controller will immediately shut off the shut-off valve of the faulty module to prevent the fault from spreading to other modules. Workers can then eliminate the problem by replacing the faulty module or the section of tubing downstream of it.

[0005] For ease of installation, the industry currently typically waits until the building's concrete is poured layer by layer, exceeding ground level, before fixing the various measuring modules of the hydraulic settlement meter to the exterior wall of the building above ground. This approach poses little problem for settlement testing of ordinary buildings of normal height, as the foundation slab (the slab at the bottom of the foundation pit) is relatively thin, usually 0.6-1.2 meters, with a relatively small amount of concrete poured, resulting in a light weight and almost no settlement during the pouring process. Therefore, installing the measuring modules for settlement testing after the underground structure within the foundation pit is completed and the building itself exceeds ground level has virtually no impact. However, for super high-rise buildings exceeding 300 meters, such as the 409-meter Ningbo Center Tower, existing settlement testing devices have significant limitations. Because the foundation slab of super high-rise buildings is 3-6 meters thick, with a large volume of concrete and significant weight, a certain amount of settlement, such as 2-3 mm, occurs in the early stages of the slab pouring process. However, at this time, the building is not yet above ground level, and the various measuring modules of the hydraulic settlement gauge have not yet been installed. This results in the settlement during the foundation slab pouring process being missed, leading to an actual error value that is 2-3 mm lower than the required standard, failing to meet safety regulations. This early settlement not included in the cumulative settlement value affects the accuracy of the measurement results, constituting a measurement error and a measurement defect. It reflects a lack of rigor, scientific rigor, and reliability in data processing, posing structural safety hazards such as cracking, structural tilting, or even collapse. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a series hydraulic settlement measurement device for super high-rise buildings, which can deploy various measurement modules under the foundation slab to detect the settlement of the basement concrete slab in advance and avoid missing the settlement of the slab pouring.

[0007] The technical solution of this utility model is to provide a series hydraulic settlement measurement device for super high-rise buildings. It includes a storage tank, n measurement modules, and an electrical control box. The electrical control box is equipped with a data acquisition unit and a main controller. Both the storage tank and the electrical control box are installed in the permanent area. Each measurement module is connected in series with the storage tank via multiple segments of infusion pipe to form a circuit. Each measurement module is connected in series with the electrical control box via multiple segments of cable. Each measurement module contains a sensing membrane and a full-bridge silicon wafer. The settlement measurement device also includes n protective boxes and n-1 intermediate protective pipes for burying at the bottom of the foundation slab. Each intermediate protective pipe is fixed between two adjacent protective boxes. The front end of the first protective box has a front protective pipe for extending to the permanent area, and the rear end of the last protective box has a rear protective pipe for extending to the permanent area. Each measurement module is housed in the box of the corresponding protective box, and each segment of infusion pipe and the cable of the same segment are housed in the protective pipe of the same segment.

[0008] Compared with existing technologies, the above-mentioned settlement measurement device has the following advantages.

[0009] Because it has a protective box for the measurement modules and a protective tube for the infusion pipes and cables, it can effectively resist the concrete pressure during the pouring of the foundation slab. This creatively achieves the effect of pre-burying each measurement module and related pipelines under the foundation slab, and the measurement device can work stably under the protection of the protective box and the protective tube. This solves the problem of how to deploy the measurement device under the ultra-thick foundation slab of 3-6 meters. Since the settlement device is deployed before the foundation slab is poured, it can intervene in the measurement process in advance, so it can completely detect the settlement of the foundation slab in the early pouring process, eliminate early errors, make up for the detection defects of this part of the settlement, improve the accuracy of the detection and judgment of the total settlement of high-rise buildings, and make the data processing more scientific, rigorous and reliable. Moreover, the aforementioned measurement modules and corresponding pipelines are laid out reasonably, buried under the foundation slab, avoiding exposure on the top surface of the slab. This will not affect the normal use of the basement, prevent accidental contact and damage to the settlement measurement device by people or vehicles during construction, and avoid the situation where the failure of one of the series measurement modules leads to the failure of the entire system.

[0010] Preferably, each segment of the infusion tubing is wrapped with a reinforcing conduit, and the cable of the same segment is also wrapped inside the reinforcing conduit. The reinforcing conduit is a PVC pipe with embedded metal wire, which is spirally distributed inside the PVC pipe wall. Each reinforcing conduit has ear plates at both ends, and each measuring module has screws at both ends. Screws are also located near the drain pipe joint and return pipe joint of the storage tank. The ear plate at the front end of the first reinforcing conduit is screwed to the screw near the drain pipe joint of the storage tank, and the ear plate at the rear end of the first reinforcing conduit is screwed to the screw at the front end of the first measuring module. The ear plates at both ends of each centrally located reinforcing conduit are respectively connected to the front measuring module. The rear screw and the front screw of the rear measuring module are screwed together. The front ear plate of the last section of the reinforcing conduit is screwed together with the rear screw of the last measuring module. The rear ear plate of the last section of the reinforcing conduit is screwed together with the screw near the return pipe joint of the storage tank. The front end of the first section of the reinforcing conduit has a notch, and the first section of the cable extends from the notch and connects to the electrical control box. In this way, the reinforcing conduit always wraps and protects the relatively fragile infusion tube and cable during normal operation, which significantly reduces the failure rate of the measuring device and effectively extends its service life. In particular, the spiral metal wires are laid inside the wall of the reinforcing conduit, which maximizes the protection and tensile strength of the reinforcing conduit.

[0011] As a further optimization, each measuring module is equipped with a shut-off valve, and each measuring module is snapped into a corresponding protective box via a locking mechanism. Each protective box has a maintenance pipe extending from the box to the top surface of the foundation slab. The settlement measuring device also includes a pull rod for temporarily connecting the measuring module, allowing it to be pulled out of the locking mechanism and dragged out of the foundation slab along the maintenance pipe. Each section of the infusion tube and cable has sufficient length to allow the corresponding measuring module to be pulled out of the foundation slab. In this way, if any measuring module malfunctions due to disrepair, workers can temporarily fix the measuring module with the pull rod and easily remove the suspected faulty module from the foundation slab along the maintenance pipe, facilitating replacement of the faulty module by workers standing on the foundation slab. Furthermore, each section of the infusion tube and cable is wrapped with a reinforced conduit, protecting the relatively fragile infusion tube under normal conditions and reducing its failure rate, while also protecting the infusion tube during maintenance by preventing damage and leakage when the measuring module is pulled.

[0012] As a further preferred option, each measuring module is fixed with an internally threaded sleeve on its upper part, and the lower end of the pull rod is provided with an externally threaded section for engaging with the internally threaded sleeve; this makes the temporary fixing and disassembly of the pull rod and the measuring module convenient and quick, and once engaged and fixed, the pull rod and the measuring module are firmly connected, which is conducive to pulling and easy to maintain.

[0013] As a further optimization, each internal threaded sleeve has a tapered end that is wider at the top and narrower at the bottom; the tie rod has multiple radial grooves, each radial groove rotatably fitting a guide ring, each radial groove limiting the corresponding guide ring along the height, and each guide ring has a set of cross-shaped fins; thus, since the foundation plate is 3-6 meters thick and the tie rod is also 3-6 meters long, workers holding such a long tie rod, with centered positioning fins on the tie rod and a tapered end at the top of the internal threaded sleeve, can accurately center the tie rod, making the process of screwing the tie rod and the internal threaded sleeve easier, faster, and more accurate.

[0014] The preferred connection structure between the infusion tubing and each liquid pipe connector includes: the storage tank has a drain pipe connector and a return pipe connector; the measuring module has a front liquid pipe connector and a rear liquid pipe connector; each liquid pipe connector includes a base nut welded to the measuring module housing or the bottom plate of the storage tank; the base nut contains a core tube communicating with the inner cavity of the measuring module or the inner cavity of the storage tank; the outer end of the core tube has an enlarged head; the rubber tubing at the end of the infusion tubing is tightly fitted onto the enlarged head of the corresponding liquid pipe connector; an expansion head is fitted at the end of the infusion tubing, the outer end of the expansion head is a hexagonal screw-on part and the inner end is an expansion tube, the expansion tube... The external thread engages with the internal thread of the base nut of the corresponding liquid pipe connector, and the expansion tube further tightens the mating rubber tube and the enlarged head. This ensures a firm and tight connection between the infusion tube and the liquid pipe connector, preventing leakage and reducing the failure rate and extending service life during daily use. More importantly, during the maintenance of the lifting and measuring module, the infusion tube may inevitably be pulled. Therefore, targeted reinforcement of the connection between the infusion tube and the liquid pipe connector can effectively resist the pulling tension and ensure that the liquid pipe will not be damaged, loosened, or leaked during maintenance.

[0015] The preferred connection structure for the cables and connectors is as follows: cable connectors are provided at both ends of the measuring module and at the bottom of the control box; each cable connector has two insertion holes and external threads; each cable end has two pins, and each cable end is rotatably fitted with a locking nut; each cable has two raised ribs, and the outer end of the locking nut has an inwardly protruding retaining ring, which axially limits the locking nut between the two raised ribs of the cable; the cable pins are inserted into the corresponding cable connector insertion holes, and the internal thread of the locking nut engages with the external thread of the corresponding cable connector; this ensures that the cables are securely connected to the corresponding cable connectors under normal conditions, reducing the failure rate, and also allows for targeted reinforcement of the connection during maintenance, effectively resisting pulling tension when the measuring module is pulled, and preventing the cables from becoming loose and damaged.

[0016] As a further optimization, the bayonet is located on the bottom plate of the protective box. The bayonet also includes two bayonet plates on the left and right. Each bayonet plate has a reinforcing rib between its outer side and the bottom plate of the protective box, and each bayonet plate has a slot on its inner side. The measuring module has two locking strips on the left and right sides. When the measuring module is inserted into the bayonet, the two locking strips are inserted into the two slots. In this way, the two bayonet plates of the bayonet are elastic, which is conducive to the measuring module being pulled out of the bayonet, and the measuring module is firmly and tightly locked to the bayonet after being engaged. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the series hydraulic settlement measurement device for super high-rise buildings, which is embedded under the foundation slab.

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure after removing the foundation plate.

[0019] Figure 3 yes Figure 2 A structural diagram after the steel mesh of the foundation slab has been removed.

[0020] Figure 4 yes Figure 3 A schematic diagram of the structure after removing the protective box and protective tube.

[0021] Figure 5 This is a system schematic diagram of the series hydraulic settlement measurement device for super high-rise buildings.

[0022] Figure 6 yes Figure 4 Enlarged structural diagram of part A in the middle.

[0023] Figure 7 This is a half-sectional schematic diagram of the locking nut of the series hydraulic settlement measurement device for super high-rise buildings according to this utility model.

[0024] Figure 8 This is a half-sectional schematic diagram of the base nut of the series hydraulic settlement measurement device for super high-rise buildings according to this utility model.

[0025] Figure 9 This is a schematic diagram of the measurement module and the side reinforcement conduit of the series hydraulic settlement measurement device for super high-rise buildings after disassembly.

[0026] Figure 10 This is a structural diagram after the infusion tubing and cable have been disassembled.

[0027] Figure 11 This is a schematic diagram showing the structure after further disassembling the locking nut and the expansion head.

[0028] Figure 12 This is a structural diagram of the last measuring module and the rear reinforcing conduit after disassembly.

[0029] Figure 13 This is a schematic diagram of the tie rod of the series hydraulic settlement measurement device for super high-rise buildings according to this utility model.

[0030] Figure 14 This is a schematic diagram of the bottom of the electrical control box of the series hydraulic settlement measurement device for super high-rise buildings.

[0031] Figure 15 yes Figure 14 A schematic diagram of the structure of the electrical control box and two reinforced conduits after disassembly.

[0032] Figure 16 yes Figure 15 A magnified structural diagram of part B.

[0033] Figure 17yes Figure 11 A magnified structural diagram of section C.

[0034] Figure 18 This is a half-sectional schematic diagram of the protective box of the series hydraulic settlement measurement device for super high-rise buildings according to this utility model.

[0035] Figure 19 This is a schematic diagram of the structure of the series hydraulic settlement measurement device for super high-rise buildings after the measurement module is detached from the bayonet and the middle section of the protective box is cut open.

[0036] Figure 20 yes Figure 19 A schematic diagram of the structure after being deflected at a certain angle.

[0037] The diagram shows: 1. Storage tank; 2. Measuring module; 3. Electrical control box; 4. Infusion tube; 5. Base nut; 6. Cable; 7. Cable connector; 8. Foundation plate; 9. Pad layer; 10. Protection box; 11. Middle section protection tube; 12. Front section protection tube; 13. Rear section protection tube; 14. Bayonet; 15. Clamping plate; 16. Reinforcing rib; 17. Slot; 18. Clamping strip; 19. Maintenance tube; 20. Upper... 21. Cover, 22. Pull rod, 23. Internal threaded sleeve, 24. Tapered end, 25. Radial groove, 26. Guide ring, 27. Fin, 28. Reinforced conduit, 29. Ear plate, 30. Screw, 31. Core tube, 32. Enlarged head, 33. Hexagonal screw head, 34. Expansion tube, 35. Locking nut, 36. Snap ring, 37. Contact point, 38. Rib, 39. Reaction strain gauge, 30. Spring. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] like Figures 1-20As shown in Embodiment 1 of this utility model for a series hydraulic settlement measurement device for super high-rise buildings, it includes a storage tank 1, n (e.g., 50) measurement modules 2, and an electrical control box 3, where n is a natural number greater than 3, and n means multiple modules. The electrical control box 3 is equipped with a data acquisition unit and a main controller. Both the storage tank 1 and the electrical control box 3 are installed in a permanent area far from the settlement zone, such as a stable road surface outside the building's foundation pit that will not settle, at a certain distance from the foundation pit. Each measurement module 2 is connected in series with the storage tank 1 via multiple segments of inlet pipe 4 to form a loop; that is, the front liquid pipe connector of the first measurement module 2 is connected to the drain pipe connector of the storage tank 1 via a segment of inlet pipe 4, the front liquid pipe connectors of the remaining measurement modules 2 (excluding the first measurement module 2) are connected to the rear liquid pipe connectors of the preceding measurement module 2 via a segment of inlet pipe 4, and the rear liquid pipe connector of the last measurement module 2 is connected to the return liquid pipe connector of the storage tank 1 via a segment of inlet pipe 4. Each measurement module 2 is connected in series with the electrical control box 3 via multiple cable segments 6; that is, the electrical control box 3 is connected to the cable connector 7 at the front of the first measurement module 2 via a cable segment 6, and the cable connectors 7 at the front of the remaining measurement modules 2 (excluding the first measurement module 2) are connected to the cable connectors 7 at the rear of the preceding measurement module 2 via a cable segment 6. Each measurement module 2 has an internal cavity containing a sensing membrane, a full-bridge silicon wafer, and a shut-off valve. The underground structure of the high-rise building includes a concrete foundation slab 8, which is poured on a leveling layer 9.

[0040] The settlement measuring device also includes n protective boxes 10 and n-1 intermediate protective pipes 11 embedded in the bottom of the foundation slab 8 to withstand the pouring pressure. Each intermediate protective pipe 11 is fixed between two adjacent protective boxes 10. The protective boxes 10 rest on the pad 9 of the foundation slab 8. To withstand the pouring pressure, the protective boxes 10 can also be fixed to the pad 9 with ground anchor bolts. Both the protective boxes 10 and the intermediate protective pipes 11 are pre-embedded in the concrete at the bottom of the foundation slab 8. The front end of the first protective box 10 is provided with a front protective pipe 12 extending from the bottom of the foundation slab 8 to the permanent area, and the rear end of the last protective box 10 is provided with a rear protective pipe 13 extending from the bottom of the foundation slab 8 to the permanent area.

[0041] Each segment of infusion tubing 4 and the corresponding cable 6 are housed within a protective conduit within the same segment. Here, we clarify the concept of "same segment." The first segment of infusion tubing 4 is located between the first measuring module 2 and the storage tank 1; the first segment of cable 6 is located between the first measuring module 2 and the electrical control box 3. The first segment of infusion tubing 4, the first segment of cable 6, and the preceding protective conduit 12 belong to the same segment. The second segment of infusion tubing 4, the second segment of cable 6, and the second protective conduit, which is also the first middle segment protective conduit 11, belong to the same segment. The nth segment of infusion tubing 4, the nth segment of cable 6, and the (n-1)th segment middle protective conduit 11 belong to the same segment. The last segment of infusion tubing 4 and the subsequent protective conduit 13 belong to the same segment; this segment does not contain a cable 6.

[0042] Each measuring module 2 engages with the corresponding snap-fit ​​14 inside the protective box 10. The snap-fit ​​14 is located on the bottom plate of the protective box 10. The snap-fit ​​14 also includes two snap-fit ​​plates 15 on the left and right. Each snap-fit ​​plate 15 has a reinforcing rib 16 between its outer side and the bottom plate of the protective box 10. Each snap-fit ​​plate 15 has a slot 17 on its inner side. The measuring module 2 has two snap-fit ​​strips 18 on its left and right sides. When the measuring module 2 is snapped into the snap-fit ​​14, the two snap-fit ​​strips 18 are snapped into the two slots 17.

[0043] Each protective box 10 is provided with a maintenance pipe 19 that connects from the box body to the top surface of the foundation plate 8; each protective box 10 has an upper opening on its top plate, the lower end of the maintenance pipe 19 is connected to the upper opening of the protective box 10, and the upper end of the maintenance pipe 19 is provided with a cover 20 that is flush with the top surface of the foundation plate 8.

[0044] The settlement measurement device also includes a pull rod 21 for temporarily connecting the measurement module 2, thereby pulling the measurement module 2 out of the bayonet 14 and pulling it out of the top surface of the foundation plate 8 along the maintenance tube 19. In this embodiment, the temporary connection means that each measurement module 2 is fixed with an internally threaded sleeve 22 at its upper part, and the lower end of the pull rod 21 is provided with an externally threaded section for engaging with the internally threaded sleeve 22. Preferably, each internally threaded sleeve 22 is welded with a tapered end 23 that is larger at the top and smaller at the bottom; the pull rod 21 is provided with a radial groove 24 at certain intervals, and a guide ring 25 is rotatably fitted in the radial groove 24. The radial groove 24 limits the guide ring 25 along the height direction, and the guide ring 25 is provided with cross-shaped fins 26. The fins 26 are locked at the four corners of the maintenance tube 19 to ensure that the pull rod 21 is centered.

[0045] Each segment of the infusion tube 4 and cable 6 has a length allowance sufficient for the corresponding measuring module 2 to be pulled out of the base plate 8. For the first segment of the infusion tube 4 and cable 6, only the first measuring module 2 needs to be pulled out during maintenance. Therefore, the remaining length of the first segment of the infusion tube 4 and cable 6 is at least one base plate 8 thicker than the length of the preceding protective tube 12. Similarly, the length of the last segment of the infusion tube 4 is at least one base plate 8 thicker than the length of the following protective tube 13. For other intermediate normal segments, the length of the infusion tube 4 and cable 6 is at least two base plate 8 thicker than the length of the middle protective tube 11 of the same segment. This ensures that two adjacent measuring modules 2 can be pulled out of the base plate 8 when repairing or replacing pipelines.

[0046] Each segment of the infusion tube 4 is wrapped with a reinforcing conduit 27. The cable 6 at the same segment of the infusion tube 4 is also wrapped within the reinforcing conduit 27. To increase strength, the reinforcing conduit 27 in this embodiment is a PVC pipe with embedded high-strength galvanized metal wire. The galvanized metal wire is spirally distributed within the PVC pipe wall, thereby maximizing the strength and tensile strength of the reinforcing conduit 27. Each reinforcing conduit 27 has perforated ear plates 28 at both ends. Each measuring module 2 has screws 29 at both ends. Screws 29 are also located near the drain pipe joint and return pipe joint of the storage tank 1. The front end ear plate 28 of the first reinforced conduit 27 is screwed to the screw 29 near the drain pipe joint of the storage tank 1, and the rear end ear plate 28 of the first reinforced conduit 27 is screwed to the front end screw 29 of the first measuring module 2. The ear plates 28 at both ends of each centrally located reinforced conduit 27 (excluding the beginning and end sections) are screwed to the rear end screw 29 of the front measuring module 2 and the front end screw 29 of the rear measuring module 2, respectively. The front end ear plate 28 of the last reinforced conduit 27 is screwed to the rear end screw 29 of the last measuring module 2, and the rear end ear plate 28 of the last reinforced conduit 27 is screwed to the screw 29 near the return pipe joint of the storage tank 1. The front end of the first reinforced conduit 27 has a notch, from which the first cable 6 extends and connects to the electrical control box 3.

[0047] The first section of reinforcing conduit 27 is the same length as the first section of infusion tubing 4, and the first section of cable 6 is longer than the first section of reinforcing conduit 27, thus facilitating the first section of cable 6 to extend from the notch in the first section of reinforcing conduit 27 and connect to the electrical control box 3. Except for the first section, the other sections of reinforcing conduit 27, infusion tubing 4, and cable 6 located in the same section are of the same length. This allows for a length margin in the reinforcing conduit 27, making it easier for the corresponding measuring module 2 to be pulled out of the base plate 8 for maintenance.

[0048] The storage tank 1 is equipped with a drain pipe connector and a return pipe connector, and the measuring module 2 is equipped with a front liquid pipe connector and a rear liquid pipe connector; all four types of connectors are liquid pipe connectors with the same structure. Each liquid pipe connector includes a base nut 5 welded to the housing of the measuring module 2 or the bottom plate of the storage tank 1. The center hole of the base nut 5 is provided with a core tube 30 that communicates with the inner cavity of the measuring module 2 or the inner cavity of the storage tank 1. The outer end of the core tube 30 is provided with an enlarged head 31. The rubber tube at the end of the infusion tube 4 is tightly fitted onto the enlarged head 31 of the corresponding liquid pipe connector core tube 30. Two expansion heads are fitted at the two ends of the infusion tube 4. The outer end of each expansion head is a hexagonal screwing part 32 and the inner end is an expansion tube 33. The external thread of the expansion tube 33 is screwed into the internal thread of the center hole of the base nut 5 of the corresponding liquid pipe connector, and the expansion tube 33 further tightens the rubber tube and the enlarged head 31 that are fitted together.

[0049] Cable connectors 7 are provided at both ends of the measuring module 2 and at the bottom of the electrical control box 3. Each cable connector 7 has several holes and external threads. Each cable 6 has several pins at its end and a locking nut 34 that can be rotatably fitted at its end. Each cable 6 has two ribs 36 at the front and rear. The locking nut 34 has an inwardly protruding retaining ring 34.1 at its outer end, which is axially limited between the two ribs 36 of the cable 6. The pins of the cable 6 are inserted into the corresponding holes of the cable connector 7, and the internal thread of the locking nut 34 engages with the external thread of the corresponding cable connector 7. In this embodiment, each cable connector 7 has two holes, and the corresponding cable 6 has two pins at its end. One set of pin holes is used to connect to the settling power line, and the other set of pin holes is used to connect to the settling signal line. Both the settling power line and the settling signal line are located inside the cable 6.

[0050] Embodiment 2 of this utility model, a series hydraulic settlement measurement device for super high-rise buildings, differs from the previous embodiment in that each cable connector 7 has four sockets, and the corresponding cable 6 has four pins at its end. Each protective box 10 has a reaction strain gauge 37 on its lower surface and two springs 38 on its upper surface. The two springs 38 are connected to the reaction lower signal line and reaction lower power line of the reaction strain gauge 37, respectively. The cable 6 contains the settlement power line and settlement signal line, as well as the reaction upper signal line and reaction upper power line. The measurement module 2 has two contacts 35 on its lower surface, which are connected to the reaction upper signal line and reaction upper power line, respectively. When the measurement module 2 is pressed down and engaged in the slot 14 of the protective box 10, the two springs 38 and the two contacts 35 close, connecting the reaction strain gauge 37 and the electrical control box 3. This enables the acquisition of the soil reaction force value of the foundation slab 8. Correspondingly, the four sets of pins and sockets correspond to the settlement power line, settlement signal line, reaction force signal line, and reaction force power line, respectively. This not only enriches the data acquisition types of the settlement measurement device of this application, but also integrates the reaction force measurement system into the cable system 6 of the settlement measurement device itself, eliminating the need for additional wiring. This optimizes the wiring.

[0051] As is common knowledge, the main controller is connected to each of the measurement modules 2, the reaction strain gauge 37, the full-bridge silicon wafer, and the shut-off valve.

[0052] Using this settlement measurement device, the measurement modules 2 can be set up after the subbase 9 is constructed and before the foundation slab 8 is poured. The measurement modules 2, along with the corresponding infusion pipes 4 and cables 6, are placed on the subbase 9 along with the protective box 10 and protective pipes. Then, the foundation slab 8 is poured with concrete, so that the measurement modules 2 and related pipelines are buried at the bottom of the foundation slab 8, and the settlement of the foundation slab 8 can be detected completely and comprehensively.

[0053] The method for overhauling the settlement measuring device of this utility model includes the following steps.

[0054] The settlement measurement device described in this application may malfunction due to years of neglect during service. When the pressure of a certain measurement module 2 drops suddenly, the main controller will disconnect the corresponding shut-off valve upon receiving an abnormal signal.

[0055] If the fault occurs in the centrally located measuring module 2, the worker stands on top of the foundation plate 8, holds the pull rod 21, lowers it along the corresponding maintenance tube 19, and temporarily connects the pull rod 21 to the suspected faulty measuring module 2. Specifically, the pull rod 21 is lowered to the lower end of the maintenance tube 19, and the external threaded section of the lower end of the pull rod 21 is screwed into the internal threaded sleeve 22 of the corresponding measuring module 2. The measuring module 2 is then pulled upwards out of the upper opening of the maintenance tube 19, bringing the suspected faulty module to the top of the foundation plate 8 for operation. The worker disassembles the old measuring module 2 from its corresponding cable 6, infusion tube 4, and reinforcing conduit 27, and then replaces it with a new measuring module 2. If the fault disappears, the repair is complete.

[0056] If the fault persists, it indicates that the fault occurs in a section of pipeline behind the measuring module 2. Therefore, the next measuring module 2 is pulled out of the base plate 8 from the next maintenance pipe 19 using the pull rod 21, and the reinforcing conduit 27 between the two measuring modules 2 and the infusion tube 4 and cable 6 inside the reinforcing conduit 27 are removed. Then, one end of the new section of the reinforcing conduit 27 containing the infusion tube 4 and cable 6 is tied to one end of the old reinforcing conduit 27 after it has been removed. Preferably, the ear plate 28 at one end of the new section of the reinforcing conduit 27 is tied to the ear plate 28 at one end of the old reinforcing conduit 27 using wire. Then, pull the old reinforced conduit 27 from the other end, and pull the old reinforced conduit 27 out from the bottom of the basement. At the same time, complete the wiring of the new reinforced conduit 27 and the infusion tube 4 and cable 6 inside along the path of the next maintenance pipe 19, the next protection box 10, the middle protection pipe, the previous protection box 10, and the previous maintenance pipe 19. Then connect the two ends of the new reinforced conduit 27, the infusion tube 4 and the cable 6 after wiring to the two pulled-out measuring modules 2. Finally, use the pull rod 21 to screw and fix the two measuring modules 2 one after the other and lower the two measuring modules 2 along their respective maintenance pipes 19 one after the other, so that the two measuring modules 2 are re-inserted into the slots 14 of their respective protection boxes 10. Finally, cover the top cover 20 of each maintenance pipe 19.

[0057] If the last measuring module 2 is the malfunctioning part, and the problem has been resolved by replacing the last measuring module 2, then simply remove the last section of the reinforcing conduit 27 and the infusion tube 4. Tie one end of the new reinforcing conduit 27 to one end of the old reinforcing conduit 27, pull the old reinforcing conduit 27 from the other end while simultaneously threading the new reinforcing conduit 27 through. Finally, connect the two ends of the new reinforcing conduit 27 and the new infusion tube 4 to the last measuring module 2 and the storage tank 1, respectively.

[0058] If the fault occurs in the first measuring module 2, replace measuring module 2 first, and then replace the next section of the reinforcing conduit 27, infusion tube 4, and cable 6. If the fault is still not eliminated, remove and replace the previous section of the reinforcing conduit 27, infusion tube 4, and cable 6. Use the same method to thread the new reinforcing conduit 27, infusion tube 4, and cable 6. Connect the new reinforcing conduit 27 and infusion tube 4 to the first measuring module 2 and the liquid storage tank 1 respectively, and connect both ends of the new cable 6 to the first measuring module 2 and the electrical control box 3.

Claims

1. A series hydraulic settlement measurement device for super high-rise buildings, comprising a liquid storage tank, n measurement modules, and an electrical control box, wherein the electrical control box is equipped with a data acquisition unit and a main controller; both the liquid storage tank and the electrical control box are installed in a permanent area; each measurement module is connected in series with the liquid storage tank via multiple segments of inlet pipe to form a circuit; each measurement module is connected in series with the electrical control box via multiple segments of cable; each measurement module contains a sensing diaphragm and a full-bridge silicon wafer; characterized in that: The settlement measurement device also includes n protective boxes and n-1 intermediate protective pipes for burying at the bottom of the foundation slab. Each intermediate protective pipe is fixed between two adjacent protective boxes. The front end of the first protective box is provided with a front protective pipe for extending to the permanent area, and the rear end of the last protective box is provided with a rear protective pipe for extending to the permanent area. Each measurement module is housed in the box of the corresponding protective box, and each infusion tube and the cable of the same section are housed in the protective pipe of the same section.

2. The series hydraulic settlement measurement device for super high-rise buildings according to claim 1, characterized in that: Each segment of the infusion tubing is wrapped with a reinforcing conduit, and the cable of the same segment is also wrapped inside the reinforcing conduit. The reinforcing conduit is a PVC pipe with embedded metal wire, which is spirally distributed inside the PVC pipe wall. Each reinforcing conduit has ear plates at both ends, and each measuring module has screws at both ends. Screws are also located near the drain pipe joint and return pipe joint of the storage tank. The ear plate at the front end of the first reinforcing conduit is screwed to the screw near the drain pipe joint of the storage tank, and the ear plate at the rear end of the first reinforcing conduit is screwed to the screw at the front end of the first measuring module. The ear plates at both ends of each middle reinforcing conduit are screwed to the rear end screw of the front measuring module and the front end screw of the rear measuring module, respectively. The ear plate at the front end of the last reinforcing conduit is screwed to the rear end screw of the last measuring module, and the ear plate at the rear end of the last reinforcing conduit is screwed to the screw near the return pipe joint of the storage tank. The first reinforcing conduit has a notch at the front end, and the first cable extends from the notch to connect to the electrical control box.

3. The series hydraulic settlement measurement device for super high-rise buildings according to claim 2, characterized in that: Each measuring module is equipped with a shut-off valve. Each measuring module is snapped into a bayonet inside the corresponding protective box. Each protective box is equipped with a maintenance pipe that connects from the box to the top surface of the foundation slab. The settlement measuring device also includes a pull rod for temporarily connecting the measuring module so that the measuring module can be pulled out of the bayonet and pulled out of the foundation slab along the maintenance pipe. The infusion pipe and cable of each section are provided with a length allowance for the corresponding measuring module to be pulled out of the foundation slab.

4. The series hydraulic settlement measuring device for super high-rise buildings according to claim 3, characterized in that: Each measuring module has an internally threaded sleeve fixed to its upper part, and the lower end of the pull rod has an externally threaded section for engaging with the internally threaded sleeve.

5. The series hydraulic settlement measurement device for super high-rise buildings according to claim 4, characterized in that: Each internal threaded sleeve has a tapered opening that is larger at the top and smaller at the bottom; the tie rod has multiple radial grooves, and a guide ring can be rotatably fitted in each radial groove. Each radial groove limits the corresponding guide ring along the height direction, and each guide ring has a set of cross-shaped fins.

6. The series hydraulic settlement measurement device for super high-rise buildings according to claim 1, characterized in that: The storage tank is equipped with a drain pipe connector and a return pipe connector, and the measuring module is equipped with a front liquid pipe connector and a rear liquid pipe connector. Each liquid pipe connector includes a base nut welded to the measuring module housing or the bottom plate of the storage tank. The base nut contains a core tube that communicates with the inner cavity of the measuring module or the inner cavity of the storage tank. The outer end of the core tube is equipped with an enlarged head. The rubber tube at the end of the infusion tube is tightly fitted onto the enlarged head of the corresponding liquid pipe connector. An expansion head is fitted onto the end of the infusion tube. The outer end of the expansion head is a hexagonal screwing part, and the inner end is an expansion tube. The external thread of the expansion tube is screwed into the internal thread of the center hole of the base nut of the corresponding liquid pipe connector, and the expansion tube further tightens the rubber tube and the enlarged head that are fitted together.

7. The series hydraulic settlement measurement device for super high-rise buildings according to claim 1, characterized in that: Cable connectors are provided at both ends of the measuring module and at the bottom of the electrical control box. Each cable connector has two sockets and external threads. Each cable end has two pins and a locking nut that can be rotatably fitted at each end. Each cable has two ribs, and the outer end of the locking nut has an inwardly protruding retaining ring. The retaining ring of the locking nut is axially limited between the two ribs of the cable. The cable pins are inserted into the corresponding cable connector sockets and the internal threads of the locking nut engage with the external threads of the corresponding cable connector.

8. The series hydraulic settlement measurement device for super high-rise buildings according to claim 1, characterized in that: The bayonet is located on the bottom plate of the protective box. The bayonet also includes two bayonet plates on the left and right. Each bayonet plate has a reinforcing rib between its outer side and the bottom plate of the protective box. Each bayonet plate has a slot on its inner side. The measuring module has two bayonet strips on the left and right. When the measuring module is inserted into the bayonet, the two bayonet strips are inserted into the two slots.

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