Super-high building super-thick concrete foundation bottom plate settlement measuring device and overhauling method

Abstract

The application discloses a kind of super-high building super-thick concrete foundation bottom plate settlement measuring device and overhauling method, the measuring module of the device is connected in series with liquid storage tank by multiple section infusion tube to form loop;Each measuring module is connected in series with electric control box by multiple section cable;Device further includes protection box, protection pipe and pull rod, infusion tube and cable line are contained in the same section of protection pipe;Measuring module is located in corresponding protection box, and protection box is provided with maintenance pipe communicated to the top surface of foundation bottom plate;The method is key, and suspected fault measuring module is pulled out of maintenance pipe by pull rod and is replaced;Or pull out two measuring modules and remove between the reinforcing line pipe and its infusion tube, cable line;Then a new section of pipeline is tied to the end of old reinforcing line pipe;Old reinforcing line pipe is pulled while threading new reinforcing line pipe;New reinforcing line pipe is butted with the two measuring modules pulled out again.The device and method can intervene in advance, avoid missing the settlement amount of bottom plate pouring, and overhauling is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of super high-rise building construction, in particular to a super high-rise building super-thick concrete foundation bottom plate settlement measuring device and a method for overhauling the settlement measuring device. BACKGROUND

[0002] During high-rise building construction, the settlement thereof needs to be detected for a period of time, the actual settlement of the building, for example, 88 mm, is measured, the expected settlement of the building, for example, 80 mm, is subtracted, the actual deviation value of the building, for example, 8 mm, is obtained, and then the actual deviation value is compared with the allowed deviation value of 10 mm specified in the specification to ensure that the actual deviation value does not exceed the allowed deviation value and the safety specification of the building is met. Currently, a level or a total station is often used to measure the settlement, but the level or the total station has a large measurement error, workers need to measure point by point manually, which is time-consuming, laborious and low in precision. Therefore, the industry also hopes to use a hydraulic settlement gauge with higher precision and automatic measurement to measure the settlement of the building.

[0003] The instrument of the hydraulic settlement gauge itself is a very mature existing technology, which includes a liquid storage tank, a plurality of measuring modules and an electric control box, the electric control box is provided with a collector and a main controller; the liquid storage tank and the electric control box are installed in a permanent area outside the settlement area, 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 foundation pit, and each series of measuring modules are installed in the settlement area and sink synchronously with the building; each measuring module is connected in series with the liquid storage tank through a plurality of liquid delivery pipes to form a loop; each measuring module is connected in series with the electric control box through a plurality of cable lines; each measuring module is provided with an induction film and a full-bridge silicon chip inside, when the settlement of any point occurs, the height difference between the module and the liquid storage tank changes, the pressure of the induction film of the module changes, the full-bridge silicon chip deforms and generates an electric signal, and the electric signal is transmitted to the collector of the electric control box through the cable line, so that the settlement change of the point can be measured.

[0004] Each measuring module is also provided with a stop valve, the stop valve of each measuring module is connected with the main controller, if the pressure of a certain module suddenly drops, it indicates that the module itself has a fault or the next section of the liquid delivery pipe of the module has a fault and leaks, the main controller directly cuts off the stop valve of the fault module to avoid the fault spreading to other subsequent modules. The worker can replace the fault module or the next section of the liquid delivery pipe of the fault module to eliminate the fault.

[0005] For the convenience of installation and later maintenance, in most cases in the industry, after the building is poured layer by layer to exceed the ground level, the measuring modules of the hydraulic settlement meter are fixed on the outer wall of the building above the ground. This is not a big problem for normal height buildings because the foundation slab of normal buildings (i.e. the slab at the bottom of the building pit) is relatively small, usually 0.6-1.2 meters thick, and the pouring amount of the slab concrete is relatively small, the self-weight is light, and there is almost no settlement during pouring. Therefore, there is almost no impact on the installation of the measuring module for settlement detection after the underground structure in the building pit is completed and the building body exceeds the ground level. However, for super high-rise buildings exceeding 300 meters, such as the 409-meter Ningbo Center Mansion, the existing settlement detection device has obvious limitations. Because the foundation slab of super high-rise buildings is 3-6 meters thick, the pouring amount is large, and the self-weight is also large, a certain amount of settlement, such as 2-3 mm, will occur during the early pouring of the slab. At this time, the building has not yet reached the ground, and the measuring modules of the hydraulic settlement meter have not yet been installed, which results in the omission of the settlement amount during the pouring of the foundation slab, resulting in an actual error value of 2-3 mm, which does not meet the requirements of the safety specification. The part of the settlement that is not included in the early settlement cumulative value will affect the accuracy of the measurement result, which is a measurement error, and there is a measurement defect. The data processing is not rigorous, scientific, and reliable, and there is a structural safety hazard, such as cracking, tilting of the main structure, and even collapse. SUMMARY

[0006] One of the technical problems to be solved by the present application is to provide a super high-rise building super-thick concrete foundation slab settlement measuring device that can intervene in advance to detect the settlement of the basement concrete slab of a super high-rise building, avoid missing the settlement amount of the slab pouring, and is convenient to maintain.

[0007] One of the technical solutions of the present application is to provide a super high-rise building super-thick concrete foundation slab settlement measuring device, which comprises a liquid storage tank, n measuring modules and an electric control box, the electric control box is provided with a collector and a main controller; the liquid storage tank and the electric control box are installed in a permanent area; each measuring module is connected in series with the liquid storage tank through a plurality of liquid delivery pipes to form a loop; each measuring module is connected in series with the electric control box through a plurality of cable lines; each measuring module is provided with an induction film, a full-bridge silicon chip and a stop valve; the settlement measuring device further comprises n protection boxes for resisting pouring pressure and n-1 middle protection pipes, each middle protection pipe is fixed between two adjacent protection boxes, and the protection boxes and the middle protection pipes are pre-buried at the bottom of the foundation slab; the front end of the first protection box is provided with a front protection pipe extending to the permanent area, and the rear end of the last protection box is provided with a rear protection pipe extending to the permanent area; each liquid delivery pipe and the cable line at the same position are contained in the protection pipe at the same position.

[0008] Each measuring module is connected with the bayonet in the box of the corresponding protection box, each protection box is provided with a maintenance pipe communicated from the box to the top surface of the foundation base plate; the settlement measuring device further comprises a pull rod for temporarily connecting the measuring modules so as to pull out the measuring modules from the bayonet and pull out the foundation base plate along the maintenance pipe; the lengths of the liquid delivery pipes and the cable lines of each section are left with a length allowance for the corresponding measuring modules to be pulled out of the foundation base plate.

[0009] Another technical problem to be solved by the present application is to provide a method for overhauling the settlement measuring device of the super-thick concrete foundation base plate of the super-high building.

[0010] Another technical solution of the present application is to provide a method for overhauling the settlement measuring device of the super-thick concrete foundation base plate of the super-high building, which comprises the following steps:

[0011] When the pressure of a certain measuring module suddenly drops and the stop valve is disconnected, the worker stands on the foundation base plate, holds the pull rod and lowers the pull rod along the corresponding maintenance pipe, temporarily connects the pull rod with the measuring module, and then pulls the measuring module out of the upper opening of the maintenance pipe; the worker replaces the measuring module, and if the fault disappears, the maintenance is completed;

[0012] If the fault still exists, it means that the fault occurs in a section of pipeline behind the measuring module, so the next measuring module is pulled out of the foundation base plate by the pull rod, and the reinforcing line pipe between the two pulled-out measuring modules, the liquid delivery pipe and the cable line in the reinforcing line pipe are removed; then one end of a new reinforcing line pipe containing the liquid delivery pipe and the cable line is tied to one end of the removed old reinforcing line pipe; then the old reinforcing line pipe is pulled from the other end, and the threading of the new reinforcing line pipe is completed at the same time as the old reinforcing line pipe is pulled out of the basement bottom; then the two ends of the new reinforcing line pipe, the liquid delivery pipe and the cable line are connected with the two pulled-out measuring modules; finally, the two measuring modules are lowered along the respective maintenance pipes in sequence by the pull rod, so that the two measuring modules are reconnected into the bayonet of the respective protection box.

[0013] Compared with the prior art, the settlement measuring device and the maintenance method have the following advantages.

[0014] The above technical scheme mainly solves two problems. First, the various measuring modules and related pipelines are creatively placed in the concrete cushion, in other words, pre-buried in the concrete at the bottom of the foundation slab, and the protection box and protection pipe effectively resist the concrete pouring pressure, ensuring the working stability of the settlement measuring device; this solves the problem of how to lay the measuring device under the 3-6 meter super-thick foundation slab, and since the settlement device is laid before pouring the foundation slab, it can intervene in the measurement process in advance, so it can detect the settlement amount of the foundation slab during the early pouring process, eliminate the early error, make up for the detection defect of the missing settlement amount, and improve the accuracy of the total settlement amount detection of the high-rise building, and the data processing is more scientific, rigorous and reliable.

[0015] Second, the various measuring modules and related pipelines are deeply buried under the foundation slab, and it is difficult to replace and maintain after years of disrepair, but the vertical maintenance pipe is ingeniously arranged, and a temporary connecting structure is arranged between the measuring module and the pull rod, so that workers can easily take out the suspected faulty measuring module from the foundation slab along the maintenance pipe, and workers standing on the foundation slab can replace the faulty module; moreover, the infusion tube and the cable line of each section are wrapped with a reinforcing tube, which protects the relatively fragile infusion tube during normal use and reduces the failure rate, and continues to protect the infusion tube during maintenance to avoid damage and leakage; in addition, the new and old reinforcing tubes are tied and tied at the head and tail, and in the process of removing the old reinforcing tube, the new tube is pulled along the path of the next maintenance pipe, the next protection box, the middle protection pipe, the previous protection box, and the previous maintenance pipe through the foundation slab, easily completing the wiring of the new tube under the foundation slab, further facilitating the maintenance and replacement process, and solving the problem of maintaining the measuring device under the super-thick foundation slab.

[0016] Moreover, the above measuring module and corresponding pipeline are reasonably laid and buried under the foundation slab, avoiding exposure on the top surface of the slab, so that it will not affect the normal use of the basement, prevent accidental damage to the settlement measuring device during construction, and avoid the condition that the failure of one of the connected measuring modules leads to the failure of the entire system.

[0017] As preferred, each infusion tube is wrapped with a reinforcing tube, and the cable in the same section is also wrapped in the reinforcing tube; each reinforcing tube is provided with an ear plate at both ends, and each measuring module is provided with a screw rod at both front and back ends; the screw rod near the liquid outlet joint of the liquid storage tank and the screw rod near the liquid return joint of the liquid storage tank are provided with an ear plate at the front end of the first reinforcing tube; the ear plate at the back end of the first reinforcing tube is screwed with the screw rod at the front end of the first measuring module; the ear plates at both ends of each reinforcing tube in the middle are screwed with the screw rod at the back end of the front measuring module and the screw rod at the front end of the rear measuring module respectively; the ear plate at the front end of the last reinforcing tube is screwed with the screw rod at the back end of the last measuring module; and the ear plate at the back end of the last reinforcing tube is screwed with the screw rod near the liquid return joint of the liquid storage tank; the front end of the first reinforcing tube is provided with a notch, and the first cable is extended from the notch to be connected with the electric control box; the reinforcing tube has two functions, one is to further wrap and protect the relatively fragile infusion tube and cable, thereby reducing the failure rate and prolonging the service life; the other is that during maintenance, the reinforcing tube also provides support and protection for the infusion tube, and the screwing mode of the reinforcing tube and the adjacent measuring module is also firm and reliable, so that the tension on the infusion tube and cable when lifting and pulling the measuring module is effectively resisted, and the fragile pipeline is ensured not to be damaged, loosened, broken or leaked during pulling.

[0018] As further preferred, an inner threaded sleeve is fixed to the upper part of each measuring module, and the lower end of the pull rod is provided with an outer threaded section for screwing with the inner threaded sleeve; accordingly, the worker lowers the pull rod to the lower end of the maintenance tube, and screws the outer threaded section at the lower end of the pull rod with the inner threaded sleeve of the corresponding measuring module; in this way, the temporary fixing and dismounting process of the pull rod and the measuring module is convenient and fast, and once the pull rod and the measuring module are screwed and fixed, the connection is firm, which is beneficial to pulling and facilitates maintenance.

[0019] As still further preferred, each inner threaded sleeve is provided with a tapered necking with large upper part and small lower part; the pull rod is provided with a plurality of radial grooves, and each radial groove is rotatably sleeved with a guide ring, each radial groove limits the corresponding guide ring along the height, and each guide ring is provided with a group of cross-shaped fins; in this way, since the foundation base plate is as thick as 3-6 meters, and the pull rod is also as long as 3-6 meters, the worker holds the pull rod of such length, sets the centrally positioned fins on the pull rod, and sets the tapered necking at the top of the inner threaded sleeve, which is beneficial to the worker to accurately center the pull rod, so that the worker's screwing process of the pull rod and the inner threaded sleeve is more relaxed, fast and accurate.

[0020] The preferred structure of the infusion tube and each liquid tube joint is that the liquid storage tank is provided with a liquid discharge joint and a liquid return joint, and the measuring module is provided with a front liquid tube joint and a rear liquid tube joint; each liquid tube joint comprises a base nut welded with the measuring module shell or the liquid storage tank bottom plate, a core tube is arranged in the base nut and communicates with the inner cavity of the measuring module or the inner cavity of the liquid storage tank, and an enlarged head is arranged at the outer end of the core tube; the rubber tube at the end of the infusion tube is tightly sleeved on the enlarged head of the corresponding liquid tube joint; the end of the infusion tube is sleeved with an extrusion head, the outer end of the extrusion head is a hexagonal screwing part, and the inner end is an extrusion tube, the outer thread of the extrusion tube is screwed with the inner thread in the center hole of the base nut of the corresponding liquid tube joint, and the extrusion tube further extrudes the rubber tube and the enlarged head which are sleeved with each other; in this way, the infusion tube and the liquid tube joint are tightly connected, liquid leakage is avoided, the failure rate is reduced in daily use, the service life is prolonged, and more importantly, the infusion tube is also pulled during the process of pulling, lifting and maintaining the measuring module, because the connection between the infusion tube and the liquid tube joint is reinforced, the pulling tension can be effectively resisted, and the liquid tube is not damaged, loosened, broken or leaked during maintenance.

[0021] The preferred connection structure of the cable and the cable joint is that the front and rear ends of the measuring module and the lower end of the electric control box are each provided with a cable joint, each cable joint is provided with two insertion holes, and the cable joint is provided with external threads; each cable is provided with two insertion pins at the end thereof, each cable is rotatably sleeved with a locking nut at the end thereof, each cable is provided with front and rear two protrusions, and the inner protruding clamping ring is arranged at the outer end of the locking nut, and the clamping ring of the locking nut is axially limited between the front and rear two protrusions of the cable; the cable insertion pin is inserted into the corresponding cable joint insertion hole, and the inner thread of the locking nut is screwed with the external thread of the corresponding cable joint; in this way, the connection between the cable and the corresponding cable joint is ensured to be firm, the failure rate is reduced, the connection part can be reinforced during maintenance, the pulling tension can be effectively resisted when the measuring module is pulled, and the cable is not damaged or loosened.

[0022] As a further preferred, the bayonet is located on the bottom plate of the protection box, the bayonet further comprises two clamping plates, each clamping plate is provided with a reinforcing rib plate between the outer side and the bottom plate of the protection box, each clamping plate is provided with a clamping groove on the inner side, and the measuring module is provided with two clamping strips; when the measuring module is clamped into the bayonet, the two clamping strips are clamped into the two clamping grooves; in this way, the two clamping plates of the bayonet have elasticity, the measuring module can be easily pulled out of the bayonet, and the measuring module and the bayonet are tightly connected after clamping.

[0023] As a preferred maintenance method, the ear plate at one end of the new reinforcing line pipe is tied to the ear plate at one end of the old reinforcing line pipe by using a wire; in this way, the ear plate of the reinforcing line pipe can ensure that the reinforcing line pipe and the measuring module are firmly and reliably screwed, resist the tension of the pulling of the measuring module, and quickly, conveniently and firmly fix the new and old reinforcing line pipes when the old line pipe is replaced by the new line pipe, so as to ensure that the new reinforcing line pipe is smoothly and stably pulled, and two benefits are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the structural diagram of the super high-rise building super-thick concrete foundation bottom plate settlement measuring device buried under the foundation bottom plate of the application.

[0025] Figure 2 is Figure 1 the structural diagram after removing the foundation bottom plate.

[0026] Figure 3 is Figure 2 the structural diagram after removing the foundation bottom plate.

[0027] Figure 4 is Figure 3 the structural diagram after removing the protection box and the protection pipe.

[0028] Figure 5 is the system principle diagram of the super high-rise building super-thick concrete foundation bottom plate settlement measuring device of the application.

[0029] Figure 6 is Figure 4 the enlarged structural diagram of part A.

[0030] Figure 7 is the half-section view of the locking nut of the super high-rise building super-thick concrete foundation bottom plate settlement measuring device of the application.

[0031] Figure 8 is the half-section view of the base nut of the super high-rise building super-thick concrete foundation bottom plate settlement measuring device of the application.

[0032] Figure 9 is the structural diagram of the measuring module and the reinforcing pipe on one side after being disassembled of the super high-rise building super-thick concrete foundation bottom plate settlement measuring device of the application.

[0033] Figure 10 is the structural diagram after further disassembling the infusion pipe and the cable.

[0034] Figure 11 is the structural diagram after further disassembling the locking nut and the extrusion head.

[0035] Figure 12 is the structural diagram after disassembling the last measuring module and the reinforcing pipe on the back side.

[0036] Figure 13 is the structural diagram of the pull rod of the super high-rise building super-thick concrete foundation bottom plate settlement measuring device of the application.

[0037] Figure 14 is the structural diagram of the bottom of the electric control box of the super high-rise building super-thick concrete foundation bottom plate settlement measuring device of the application.

[0038] Figure 15 is Figure 14 The structure diagram of the electric control box and two reinforced wire pipes after being disassembled.

[0039] Figure 16 is Figure 15 The enlarged structure diagram of part B in the electric control box.

[0040] Figure 17 is Figure 11 The enlarged structure diagram of part C in the electric control box.

[0041] Figure 18 The half-section structure diagram of the protection box of the settlement measuring device for the super-thick concrete foundation bottom plate of the super-high building.

[0042] Figure 19 The structure diagram of the measuring module of the settlement measuring device for the super-thick concrete foundation bottom plate of the super-high building after being separated from the bayonet and the middle section of the protection box being cut open.

[0043] Figure 20 is Figure 19 The structure diagram after being deflected by a certain angle.

[0044] 1, liquid storage tank, 2, measuring module, 3, electric control box, 4, infusion tube, 5, base nut, 6, cable, 7, cable joint, 8, foundation bottom plate, 9, cushion layer, 10, protection box, 11, middle section protection pipe, 12, front section protection pipe, 13, rear section protection pipe, 14, bayonet, 15, clamping plate, 16, reinforcing rib plate, 17, clamping groove, 18, clamping strip, 19, maintenance pipe, 20, upper cover, 21, pull rod, 22, internal thread sleeve, 23, conical closing, 24, radial groove, 25, guide ring, 26, fin, 27, reinforced wire pipe, 28, ear plate, 29, screw rod, 30, core pipe, 31, enlarged head, 32, hexagonal screwing part, 33, extruded pipe, 34, locking nut, 34.1, clamping ring, 35, contact, 36, convex rib, 37, counter-force strain gauge, 38, elastic sheet. DETAILED DESCRIPTION

[0045] The application will be further described below in combination with the drawings and specific embodiments.

[0046] As Figures 1-20As shown, the embodiment 1 of the super-high-rise building super-thick concrete foundation bottom plate settlement measuring device of the present application comprises a liquid storage tank 1, n, for example 50, measuring modules 2 and an electric control box 3, wherein n is a natural number greater than 3, and n is plural; the electric control box 3 is provided with a collector and a main controller. The liquid storage tank 1 and the electric control box 3 are both installed in a permanent area away from the settlement area, such as being fixed on a stable road surface outside the foundation pit of the building which will not settle, at a certain distance from the foundation pit of the building. Each measuring module 2 is connected in series with the liquid storage tank 1 through a plurality of liquid delivery pipes 4 to form a loop; that is, the front liquid pipe joint of the first measuring module 2 is connected in butt joint with the liquid discharge pipe joint of the liquid storage tank 1 through a section of liquid delivery pipe 4, the front liquid pipe joint of each measuring module 2 except the first measuring module 2 is connected in butt joint with the rear liquid pipe joint of the previous measuring module 2 through a section of liquid delivery pipe 4, and the rear liquid pipe joint of the last measuring module 2 is connected in butt joint with the liquid return pipe joint of the liquid storage tank 1 through a section of liquid delivery pipe 4. Each measuring module 2 is connected in series with the electric control box 3 through a plurality of cable lines 6; that is, the electric control box 3 is connected in butt joint with the front cable joint 7 of the first measuring module 2 through a section of cable line 6, and the front cable joint 7 of each measuring module 2 except the first measuring module 2 is connected in butt joint with the rear cable joint 7 of the previous measuring module 2 through a section of cable line 6. The inner cavity of each measuring module 2 is provided with a sensing film, a full-bridge silicon chip and a stop valve. The underground structure of the high-rise building comprises a concrete foundation bottom plate 8, and the concrete foundation bottom plate 8 is poured on a cushion layer 9.

[0047] The settlement measuring device further comprises n protection boxes 10 for resisting pouring pressure and n-1 middle section protection pipes 11, and each middle section protection pipe 11 is fixed between two adjacent protection boxes 10. The protection boxes 10 are placed on the cushion layer 9 of the foundation bottom plate 8, and the protection boxes 10 can also be fixed with the cushion layer 9 through ground anchor bolts to resist pouring pressure. The protection boxes 10 and the middle section protection pipes 11 are both pre-buried in the concrete at the bottom of the foundation bottom plate 8. The front end of the first protection box 10 is provided with a front section protection pipe 12 extending from the bottom of the foundation bottom plate 8 to the permanent area, and the rear end of the last protection box 10 is provided with a rear section protection pipe 13 extending from the bottom of the foundation bottom plate 8 to the permanent area.

[0048] Each section of liquid delivery pipe 4 and the cable line 6 at the same section are accommodated in the protection pipe at the same section. Here, a concept is clarified, the same section. The first section of liquid delivery pipe 4 is located between the first measuring module 2 and the liquid storage tank 1, the first section of cable line 6 is located between the first measuring module 2 and the electric control box 3, and the first section of liquid delivery pipe 4, the first section of cable line 6 and the front section protection pipe 12 belong to the same section; the second section of liquid delivery pipe 4, the second section of cable line 6 and the first section of middle section protection pipe 11 also belong to the same section; the n section of liquid delivery pipe 4, the n section of cable line 6 and the n-1 section of middle section protection pipe 11 belong to the same section; the last section of liquid delivery pipe 4 and the rear section protection pipe 13 belong to the same section, and this section has no cable line 6.

[0049] Each measuring module 2 is clamped with the bayonet 14 in the box body of the corresponding protection box 10, the bayonet 14 is located on the bottom plate of the protection box 10, the bayonet 14 further comprises two left and right clamping plates 15, each clamping plate 15 is provided with a reinforcing rib plate 16 between the outer side and the bottom plate of the protection box 10, and each clamping plate 15 is provided with a clamping groove 17 in the inner side, and the measuring module 2 is provided with two clamping strips 18.

[0050] Each protection box 10 is provided with a maintenance pipe 19 which is communicated from the box body to the top surface of the foundation bottom plate 8; the top plate of each protection box 10 is provided with an upper opening, the lower end of the maintenance pipe 19 is communicated with the upper opening of the protection box 10, and the upper end of the maintenance pipe 19 is provided with an upper cover 20 which is flush with the top surface of the foundation bottom plate 8.

[0051] The sedimentation measuring device further comprises a pull rod 21 for temporarily connecting the measuring module 2 so as to pull out the measuring module 2 from the bayonet 14 and out of the top surface of the foundation bottom plate 8 along the maintenance pipe 19. In the embodiment, the temporary connection refers to that each measuring module 2 is fixed with an internally threaded sleeve 22 at the upper portion, and the lower end of the pull rod 21 is provided with an externally threaded section for screwing with the internally threaded sleeve 22. As preferred, each internally threaded sleeve 22 is welded with a tapered closing portion 23 which is large at the upper portion and small at the lower portion; the pull rod 21 is provided with a plurality of radial grooves 24, one guide ring 25 is rotatably sleeved in each radial groove 24, each radial groove 24 limits the corresponding guide ring 25 along the height, and each guide ring 25 is provided with a group of cross-shaped fins 26 which are clamped on the four corners of the maintenance pipe 19 so as to ensure the centering of the pull rod 21.

[0052] The lengths of the infusion pipes 4 and the cable lines 6 of each section are left with a length allowance for pulling out the corresponding measuring module 2 out of the foundation bottom plate 8. For the first section of the infusion pipes 4 and the cable lines 6, only the first measuring module 2 needs to be pulled out during maintenance, and therefore the lengths of the first section of the infusion pipes 4 and the cable lines 6 are at least one thickness of the foundation bottom plate 8 more than the lengths of the front section protection pipes 12; similarly, the length of the last section of the infusion pipes 4 is at least one thickness of the foundation bottom plate 8 more than the length of the rear section protection pipe 13; and for the lengths of the infusion pipes 4 and the cable lines 6 of the other normal sections, the lengths are at least two thicknesses of the foundation bottom plate 8 more than the lengths of the middle section protection pipes 11 of the same section, so as to ensure that the two adjacent measuring modules 2 are pulled out of the foundation bottom plate 8 during the maintenance and replacement of the pipelines.

[0053] Each infusion tube 4 is wrapped with a reinforced wire tube 27, and the cable 6 at the same section as the infusion tube 4 is also wrapped in the reinforced wire tube 27 at the same section. In order to increase the strength, the reinforced wire tube 27 in the embodiment is a PVC tube with high-strength galvanized wire embedded in the wall of the PVC tube, and the galvanized wire is distributed in a spiral shape in the wall of the PVC tube, thereby maximizing the strength and anti-pulling performance of the reinforced wire tube 27. Each reinforced wire tube 27 is provided with a hole plate 28 at both ends, and the front and rear ends of each measuring module 2 are provided with a screw rod 29, and the liquid outlet pipe joint and the liquid return pipe joint of the liquid storage tank 1 are also provided with a screw rod 29. The front end ear plate 28 of the first reinforced wire tube 27 is screwed with the screw rod 29 near the liquid outlet pipe joint of the liquid storage tank 1, and the rear end ear plate 28 of the first reinforced wire tube 27 is screwed with the front end screw rod 29 of the first measuring module 2. Except for one head and one tail, the ear plates 28 at both ends of each middle reinforced wire tube 27 are screwed with the rear end screw rod 29 of the front measuring module 2 and the front end screw rod 29 of the rear measuring module 2, respectively. The front end ear plate 28 of the last reinforced wire tube 27 is screwed with the rear end screw rod 29 of the last measuring module 2, and the rear end ear plate 28 of the last reinforced wire tube 27 is screwed with the screw rod 29 near the liquid return pipe joint of the liquid storage tank 1. The front end of the first reinforced wire tube 27 is provided with a notch, and the first cable 6 extends out of the notch to connect with the electric control box 3.

[0054] The first reinforced wire tube 27 is equal in length to the first infusion tube 4, and the first cable 6 is longer than the first reinforced wire tube 27, so that the first cable 6 can extend out of the notch of the first reinforced wire tube 27 to be connected with the electric control box 3. Except for the first section, the reinforced wire tube 27, the infusion tube 4 and the cable 6 at the same section are equal in length, so that the reinforced wire tube 27 also has a length allowance, which is convenient for the corresponding measuring module 2 to pull out the base plate 8 for maintenance.

[0055] The liquid storage tank 1 is provided with a liquid outlet pipe joint and a liquid return pipe joint, and the measuring module 2 is provided with a front liquid pipe joint and a rear liquid pipe joint. The four kinds of joints are liquid pipe joints with the same structure. Each liquid pipe joint includes a base nut 5 welded with the shell of the measuring module 2 or the bottom plate of the liquid storage tank 1, a core tube 30 provided in the center hole of the base nut 5 and communicating with the inner cavity of the measuring module 2 or the inner cavity of the liquid storage tank 1, and an enlarged head 31 provided at the outer end of the core tube 30. The rubber tube at the end of the infusion tube 4 is tightly sleeved on the enlarged head 31 of the core tube 30 of the corresponding liquid pipe joint. The two end portions of the infusion tube 4 are sleeved with two extruded heads, and each extruded head has a hexagonal screw part 32 at the outer end and an extruded tube 33 at the inner end. The outer thread of the extruded tube 33 is screwed with the inner thread of the base nut 5 of the corresponding liquid pipe joint, and the extruded tube 33 further extrudes the rubber tube and the enlarged head 31 that are sleeved with each other.

[0056] The cable joint 7 is provided with a plurality of insertion holes, and the cable joint 7 is provided with external threads; each cable wire 6 is provided with a plurality of insertion pins, and the end of each cable wire 6 is rotatably sleeved with a locking nut 34; each cable wire 6 is provided with two front and rear convex ribs 36, and the outer end of the locking nut 34 is provided with an inner convex clamping ring 34.1; the clamping ring 34.1 of the locking nut 34 is axially limited between the two front and rear convex ribs 36 of the cable wire 6; the cable wire 6 insertion pin is inserted into the corresponding cable joint 7 insertion hole, and the internal threads of the locking nut 34 are screwed with the external threads of the corresponding cable joint 7. In the embodiment, each cable joint 7 is provided with two insertion holes, and the corresponding end of the cable wire 6 has two insertion pins; one group of insertion pin insertion holes is used to connect the settlement power supply line, and the other group of insertion pin insertion holes is used to connect the settlement signal line; and the settlement power supply line and the settlement signal line are located in the cable wire 6.

[0057] The embodiment 2 of the super-high building super-thick concrete foundation bottom plate settlement measuring device of the application is different from the previous embodiment in that each cable joint 7 is provided with four insertion holes, and the corresponding end of the cable wire 6 has four insertion pins. The bottom surface of each protection box 10 is provided with a counter-force strain gauge 37, and the upper surface of the bottom plate of the protection box 10 is provided with two elastic sheets 38; the two elastic sheets 38 are connected with the counter-force lower signal line and the counter-force lower power supply line of the counter-force strain gauge 37, respectively; in addition to the settlement power supply line and the settlement signal line, the cable wire 6 is also wrapped with a counter-force upper signal line and a counter-force upper power supply line; and the lower surface of the measuring module 2 is provided with two contacts 35, which are connected with the counter-force upper signal line and the counter-force upper power supply line, respectively. When the measuring module 2 is pressed and clamped into the protection box 10, the two elastic sheets 38 and the two contacts 35 are closed, and the counter-force strain gauge 37 and the electric control box 3 are connected. Thus, the collection of the soil counter-force value of the foundation bottom plate 8 is realized. Correspondingly, the four groups of insertion pin insertion holes correspond to the settlement power supply line, the settlement signal line, the counter-force signal line and the counter-force power supply line, respectively. In this way, the data collection type of the settlement measuring device is enriched, and the counter-force measuring system is grafted into the cable wire 6 system of the settlement measuring device itself, without the need for additional wiring. The line is optimized.

[0058] From common sense, the main controller is connected with each measuring module 2, counter-force strain gauge 37, full-bridge silicon chip and stop valve signal.

[0059] By using the settlement measuring device, the various measuring modules 2 can be laid after the construction of the cushion 9 and before the pouring of the foundation bottom plate 8; the various measuring modules 2 and the corresponding infusion tubes 4 and cable wires 6 are placed on the cushion 9 with the protection box 10 and the protection tube, and then the foundation bottom plate 8 is poured with concrete, so that the various measuring modules 2 and the related pipelines are buried at the bottom of the foundation bottom plate 8, and the settlement of the foundation bottom plate 8 is completely and comprehensively detected.

[0060] The application discloses a method for overhauling a super-high building super-thick concrete foundation bottom plate settlement measuring device.

[0061] During the service of the settlement measuring device, the long-term disrepair may cause faults. When the pressure of a certain measuring module 2 suddenly drops, the main controller will disconnect the corresponding stop valve upon receiving the signal anomaly. The measuring module with the sudden pressure drop is the suspected faulty measuring module.

[0062] If the fault occurs in the middle measuring module 2, a worker stands on the top surface of the foundation bottom plate 8, holds the pull rod 21 and lowers the pull rod 21 along the corresponding maintenance pipe 19 and temporarily connects the pull rod 21 with the suspected faulty measuring module 2, that is, the pull rod 21 is lowered to the lower end of the maintenance pipe 19, and the outer threaded section of the lower end of the pull rod 21 is screwed with the inner threaded sleeve 22 of the corresponding measuring module 2. Then the measuring module 2 is pulled upward out of the upper opening of the maintenance pipe 19, so that the suspected faulty measuring module reaches the top surface of the foundation bottom plate 8 for operation. The worker disassembles the old measuring module 2 from the corresponding cable 6, liquid delivery pipe 4 and reinforcing line pipe 27, and then replaces the new measuring module 2. If the fault disappears, the maintenance is completed.

[0063] If the fault still exists, it indicates that the fault occurs in a pipeline on the rear side of the measuring module 2, so the next measuring module 2 is pulled out of the foundation bottom plate 8 from the next maintenance pipe 19 by using the pull rod 21, and the reinforcing line pipe 27 between the two pulled-out measuring modules 2 and the liquid delivery pipe 4 and cable 6 wrapped in the reinforcing line pipe 27 are disassembled. Then one end of a new reinforcing line pipe 27 wrapping the liquid delivery pipe 4 and cable 6 is tied to the other end of the disassembled old reinforcing line pipe 27, preferably the ear plate 28 at one end of the new reinforcing line pipe 27 is tied to the ear plate 28 at the other end of the old reinforcing line pipe 27 by using a wire. Then the old reinforcing line pipe 27 is pulled from the other end, and the new reinforcing line pipe 27 and the wrapped liquid delivery pipe 4 and cable 6 are threaded along the rear maintenance pipe 19, rear protection box 10, middle protection pipe, front protection box 10 and front maintenance pipe 19. Then the threaded new reinforcing line pipe 27, liquid delivery pipe 4 and cable 6 are connected to the two pulled-out measuring modules 2. Finally, the two measuring modules 2 are screwed and fixed by using the pull rod 21, and the two measuring modules 2 are lowered along the respective maintenance pipes 19, so that the two measuring modules 2 are re-clamped into the respective protection box 10 clamping ports 14, and finally the upper covers 20 of the respective maintenance pipes 19 are covered.

[0064] If the last measuring module 2 is faulty, and after replacing the last measuring module 2 to eliminate the fault of the measuring module 2 itself, only need to directly remove the last section of the reinforcing pipe 27 and the infusion tube 4, and bind the new reinforcing pipe 27 and the old reinforcing pipe 27 at one end, then pull the old reinforcing pipe 27 from the other end and simultaneously thread the new reinforcing pipe 27, finally connect the new reinforcing pipe 27 and the new infusion tube 4 at both ends with the last measuring module 2 and the liquid storage tank 1 respectively.

[0065] If the first measuring module 2 is faulty, after replacing the measuring module 2 and then replacing the reinforcing pipe 27, the infusion tube 4 and the cable 6 of the next section, if the fault is still not eliminated, then remove and replace the reinforcing pipe 27, the infusion tube 4 and the cable 6 of the previous section, thread the new reinforcing pipe 27 and the infusion tube 4 and the cable 6 in the same way, then connect the new reinforcing pipe 27 and the infusion tube 4 with the first measuring module 2 and the liquid storage tank 1 respectively, and connect the two ends of the new cable 6 with the first measuring module 2 and the electric control box 3.

Claims

1. A kind of super high-rise building super-thick concrete foundation slab settlement measuring device, it includes a liquid storage tank, n measuring module and electric control box, electric control box is equipped with collector and main controller;Liquid storage tank and electric control box are installed in permanent area;Each measuring module is connected with liquid storage tank by multiple section infusion tube and forms a loop;Each measuring module is connected with electric control box by multiple section cable line;Each measuring module is equipped with inductive film, full-bridge silicon chip and stop valve;Its characterized in that: The sedimentation measuring device further comprises n protection boxes and n-1 middle section protection pipes for resisting pouring pressure, each middle section protection pipe is fixed between two adjacent protection boxes, and the protection boxes and the middle section protection pipes are pre-buried at the bottom of the foundation bottom plate; the front end of the first protection box is provided with a front section protection pipe extending to the permanent area, and the rear end of the last protection box is provided with a rear section protection pipe extending to the permanent area; each infusion pipe and the cable line at the same section are contained in the protection pipe at the same section; Each measuring module is clamped with the bayonet in the box body of the corresponding protection box, and each protection box is provided with a maintenance pipe communicated from the box body to the top surface of the foundation bottom plate; the sedimentation measuring device further comprises a pull rod for temporarily connecting the measuring modules so as to pull out the measuring modules from the bayonet and pull out the measuring modules from the foundation bottom plate along the maintenance pipe; the length allowance is left for the infusion pipe and the cable line at each section to pull out the corresponding measuring module from the foundation bottom plate.

2. The super-high-rise building super-thick concrete foundation slab settlement measuring device according to claim 1, characterized in that: Each infusion pipe is wrapped with a section of reinforced wire pipe, and the cable line at the same section is also wrapped in the reinforced wire pipe; each reinforced wire pipe is provided with an ear plate at both ends, and each measuring module is provided with a screw rod at both front and rear ends; the screw rod near the liquid discharge pipe joint and the liquid return pipe joint of the liquid storage tank are provided with screw rods; the front end ear plate of the first section of reinforced wire pipe is screwed with the screw rod near the liquid discharge pipe joint of the liquid storage tank, the rear end ear plate of the first section of reinforced wire pipe is screwed with the front end screw rod of the first measuring module, the ear plates at both ends of each section of reinforced wire pipe in the middle are screwed with the rear end screw rod of the front measuring module and the front end screw rod of the rear measuring module respectively, the front end ear plate of the last section of reinforced wire pipe is screwed with the rear end screw rod of the last measuring module, and the rear end ear plate of the last section of reinforced wire pipe is screwed with the screw rod near the liquid return pipe joint of the liquid storage tank; the front end of the first section of reinforced wire pipe is provided with a notch, and the first section of cable line extends out of the notch and is connected with the electric control box.

3. The super high-rise building super-thick concrete foundation slab settlement measuring device according to claim 1, characterized in that: The upper part of each measuring module is fixed with an internally threaded sleeve, and the lower end of the pull rod is provided with an externally threaded section for screwing with the internally threaded sleeve.

4. The super high-rise building super-thick concrete foundation slab settlement measuring device according to claim 3, characterized in that: Each internally threaded sleeve is provided with a tapered necking with large upper part and small lower part; the pull rod is provided with a plurality of radial grooves, one guide ring is rotatably sleeved in each radial groove, each radial groove limits the corresponding guide ring along the height, and each guide ring is provided with a group of cross-shaped fins.

5. The super high-rise building super-thick concrete foundation slab settlement measuring device according to claim 1, characterized in that: The liquid storage tank is provided with a liquid discharge pipe joint and a liquid return pipe joint, and the measuring module is provided with a front liquid pipe joint and a rear liquid pipe joint; each liquid pipe joint comprises a base nut welded with the shell of the measuring module or the bottom plate of the liquid storage tank, a core pipe is arranged in the base nut and communicated with the inner cavity of the measuring module or the inner cavity of the liquid storage tank, and an enlarged head is arranged at the outer end of the core pipe; the rubber tube at the end of the infusion pipe is tightly sleeved on the enlarged head of the corresponding liquid pipe joint; the end of the infusion pipe is sleeved with an extrusion head, the outer end of the extrusion head is a hexagonal screwing part, the inner end is an extrusion pipe, the outer thread of the extrusion pipe is screwed with the inner thread in the center hole of the base nut of the corresponding liquid pipe joint, and the extrusion pipe further extrudes the rubber tube and the enlarged head which are sleeved with each other. 6.The settlement measuring device for super-high building super-thick concrete foundation slab according to claim 1, characterized in that: The cable joint is provided with two insertion holes, and the cable joint is provided with external threads; the end of each cable is provided with two insertion pins, and the end of each cable is rotatably sleeved with a locking nut, each cable is provided with two front and rear protrusions, the outer end of the locking nut is provided with an internally convex clamping ring, and the clamping ring of the locking nut is axially limited between the two protrusions of the cable; the cable insertion pin is inserted into the corresponding cable joint insertion hole, and the internal threads of the locking nut are screwed with the external threads of the corresponding cable joint.

7. The super high-rise building super-thick concrete foundation slab settlement measuring device according to claim 1, characterized in that: The bayonet is located on the bottom plate of the protection box, and the bayonet further includes left and right clamping plates, each clamping plate is provided with a reinforcing rib plate between the outer side and the bottom plate of the protection box, and each clamping plate is provided with a clamping groove on the inner side; the measurement module is provided with two clamping strips on the left and right sides; when the measurement module is clamped into the bayonet, the two clamping strips are clamped into the two clamping grooves.

8. A method for overhauling a settlement measuring device for an ultra-high-rise building ultra-thick concrete foundation slab, characterized in that: It comprises the following steps: When the pressure of a certain measurement module drops suddenly and the cutoff valve is disconnected, the worker stands on the foundation bottom plate, holds the pull rod, and lowers it along the corresponding maintenance pipe and temporarily connects the pull rod with the measurement module, and then pulls the measurement module upward out of the upper opening of the maintenance pipe; the worker replaces the measurement module, and if the fault disappears, the maintenance is completed; If there is still a fault, it means that the fault occurs in a section of pipeline on the rear side of the measurement module, so the pull rod is used to pull the next measurement module out of the foundation bottom plate, and the reinforcing line pipe and the infusion tube and cable line contained therein are removed between the two pulled-out measurement modules; then one end of the new reinforcing line pipe containing the infusion tube and the cable line is tied to one end of the old reinforcing line pipe after being removed; then the old reinforcing line pipe is pulled from the other end, and the threading of the new reinforcing line pipe is completed while the old reinforcing line pipe is pulled out of the basement bottom; the ends of the new reinforcing line pipe, the infusion tube and the cable line are connected with the two pulled-out measurement modules; finally, the two measurement modules are lowered along the respective maintenance pipes by the pull rod, so that the two measurement modules are clamped into the respective protection box bayonets.

9. The method of claim 8, wherein the method further comprises: removing the super high-rise building super-thick concrete foundation slab settlement measuring device from the super high-rise building super-thick concrete foundation slab settlement measuring device housing; and cleaning the super high-rise building super-thick concrete foundation slab settlement measuring device. The ear plate at one end of the new reinforcing line pipe is tied to the ear plate at one end of the old reinforcing line pipe by a wire.

10. The method of claim 8, wherein the method further comprises: removing the super high-rise building super-thick concrete foundation slab settlement measuring device from the super high-rise building super-thick concrete foundation slab settlement measuring device housing; and cleaning the super high-rise building super-thick concrete foundation slab settlement measuring device. The worker lowers the pull rod to the lower end of the maintenance pipe, and the external thread segment at the lower end of the pull rod is screwed with the internal thread sleeve of the corresponding measurement module.

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