Concrete-filled steel tube visual jacking device and construction method

Abstract

The invention discloses a steel pipe concrete visual jacking device which comprises a steel pipe column, a steel pipe column, a steel pipe column and a steel pipe column, the conveying pipeline comprises a connecting pipe, a first conveying pipeline and a second conveying pipeline; one end of the connecting pipe is in butt joint with the jacking opening in an inserted mode through a fastening device. The fastening device comprises a semicircular arc-shaped clamping plate and an arc-shaped interface plate which are the same in shape; the sealing device is arranged at the joint of the connecting pipe and the jacking opening; the numerical control device is arranged between the connecting pipe and the first conveying pipeline; the monitoring device is arranged between the first conveying pipeline and the second conveying pipeline; the observation device is arranged at the top of the steel pipe column. The device is convenient and fast to operate, high in applicability, good in sealing performance and visualized in the concrete pouring process, the construction quality of concrete in the steel pipe is effectively improved, pollution caused by excessive concrete jacking is reduced, and the construction cost is greatly saved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction equipment, and in particular to a steel pipe concrete visual lifting device and a construction method. BACKGROUND

[0002] In modern building engineering, steel pipe concrete, as a kind of mixed structural material, is widely used in high-rise, super high-rise buildings and large-span bridge engineering structures due to its structure with good mechanical properties, such as high compressive strength, bending resistance and seismic performance. The construction quality of steel pipe concrete plays a crucial role in the safety and durability of the entire structure.

[0003] At present, the construction methods of steel pipe concrete mainly include pumping lifting method and high-position throwing method: the pumping lifting method is to lift the concrete from the bottom of the steel pipe by pumping to fill the inside of the steel pipe; the high-position throwing method relies on the impact force and gravity of free fall of the concrete for filling, which is limited and the quality of the concrete is difficult to control. Therefore, the pumping lifting method is mostly used in engineering.

[0004] The concrete pumping lifting process is an irreversible process, and uneven lifting speed may cause the concrete to produce stratification, segregation and other phenomena in the steel pipe, thereby reducing the load-carrying capacity and durability of the structure. In the traditional concrete lifting construction process, there are some problems that are difficult to solve: (1) Outdated detection means: construction personnel cannot directly obtain the key information of the lifting height, flow state and whether there is a cavity of the concrete inside the steel pipe, and can only rely on experience and indirect detection means for judgment. This not only makes it difficult to effectively guarantee the construction quality, but also once quality problems occur, the later detection and repair work will face great technical challenges and high cost investment.

[0005] (2) Extensive parameter control: the traditional lifting device lacks precision in the control of key parameters such as concrete pumping pressure and flow, resulting in uneven lifting speed, which seriously affects the filling effect of the concrete and the integrity of the structure, and reduces the reliability of the engineering structure.

[0006] (3) Insufficient equipment performance: the traditional lifting device has problems such as poor universality, poor sealing at the interface, low universality of the sleeve piece and complicated manual operation, and cannot meet the requirements of efficient and precise construction of modern building engineering. In addition, the control of the traditional lifting construction on the steel pipe concrete is mainly concentrated on the outside of the steel pipe, and lacks real-time monitoring and effective control of the concrete pouring process inside the steel pipe, which is difficult to ensure the forming quality of the concrete.

[0007] Therefore, the steel pipe concrete visual jacking device and construction method capable of realizing visual monitoring and precise control of jacking parameters not only is a key to solve current construction technical problems, but also is an inevitable requirement for promoting the development of the construction industry in the direction of intelligentization and refinement, and has extremely important practical significance for improving the quality and efficiency of construction engineering. SUMMARY

[0008] The technical problem solved by the present application is to solve the above-mentioned problems of the prior art, and to provide a steel pipe concrete visual jacking device and construction method, which aims to completely solve the problems of steel pipe concrete pouring quantity control and one-time jacking forming quality, and has the advantages of convenient and fast operation, strong applicability, good sealing, visualization during concrete pouring, effective improvement of the construction quality of the concrete in the steel pipe, reduction of pollution caused by excessive concrete jacking, and significant saving of construction cost.

[0009] To solve the above technical problems, the technical scheme adopted by the present application is: A steel pipe concrete visual jacking device, comprising: A steel pipe column having a jacking opening in the lower part.

[0010] A conveying pipeline comprising a connecting pipe, a first conveying pipeline and a second conveying pipeline.

[0011] The connecting pipe is inserted and connected to the jacking opening through a fastening device at one end.

[0012] The fastening device comprises semicircular arc-shaped clamping plates and arc-shaped interface plates.

[0013] The arc-shaped interface plates are provided with through openings corresponding to the positions of the jacking openings, and the connecting pipe is inserted into the jacking opening through the through openings.

[0014] The sealing device is arranged at the interface between the connecting pipe and the jacking opening.

[0015] The numerical control device is arranged between the connecting pipe and the first conveying pipeline.

[0016] The monitoring device is arranged between the first conveying pipeline and the second conveying pipeline.

[0017] The observation device is arranged at the top of the steel pipe column.

[0018] Further, the connecting pipe and the through opening are welded and fixed.

[0019] Further, the sealing device is a rubber sealing ring, which is arranged around the end of the connecting pipe close to the jacking opening.

[0020] Furthermore, the CNC device includes a hydraulic-electric shut-off valve and a hydraulic pump; the two ends of the hydraulic-electric shut-off valve are connected to the connecting pipe and the first delivery pipe respectively through clamps, and the hydraulic-electric shut-off valve is connected to the external hydraulic pump through a hydraulic pipe.

[0021] Furthermore, the hydraulic electric shut-off valve includes a shut-off valve base with a flow passage, and a flow-stopping plate is slidably arranged inside the shut-off valve base; hydraulic cylinders are arranged on both sides of the hydraulic electric shut-off valve, one end of the hydraulic cylinder is connected to the shut-off valve base by bolts, the other end of the hydraulic cylinder is connected to the flow-stopping plate by bolts, the hydraulic cylinder is connected to the hydraulic pump through hydraulic pipes, the hydraulic pump is connected to the control box, and a controller is arranged inside the control box.

[0022] Furthermore, the controller is controlled through a switch module and a remote control module; the remote control module includes an infrared remote control module, a mobile APP remote control module, and a data signal feedback remote control module.

[0023] Furthermore, the monitoring device is a flow meter, whose two ends are connected to the first and second conveying pipes respectively via clamps.

[0024] Furthermore, the observation device is a millimeter-wave wireless radar level gauge, which is mounted on top of the steel pipe column via an instrument bracket.

[0025] Furthermore, a construction method for a steel-concrete composite visual jacking device includes a simulation component, with the following steps: S1: Test the density and rheological parameters (τ0, k, n) of the concrete used for jacking. Among the rheological parameters, τ0 is the minimum shear stress threshold required for the fluid to begin flowing, k reflects the viscosity of the fluid after exceeding the yield stress, and n characterizes the shear response type of the fluid.

[0026] S2: Model and mesh the steel pipe column according to the dimensions of the design drawing. Calculate the concrete volume of the steel pipe column and the static pressure at the feed inlet after the jacking is completed through steady-state calculation.

[0027] S3: Set the pumping rate to simulate the pumping speed, and select the pump truck model based on the results.

[0028] S4: By obtaining continuous and stable pumping dynamic pressure change data and pumping rate through monitoring devices, and combining the pumping rate and steady-state calculations, the volume of concrete in the steel pipe column can be obtained, and the static pressure equation can be derived.

[0029] S5: Superimpose the dynamic pressure change data obtained from the monitoring device onto the static pressure equation, input it into the software for simulation, obtain relevant data during the jacking process, export and save it into the mobile APP for subsequent real-time on-site monitoring.

[0030] Furthermore, it also includes a practical section, with the following steps: S1: the end of the connecting pipe with the sealing ring in the arc-shaped interface plate is connected with the jacking opening of the steel pipe column, the arc-shaped interface plate and the arc-shaped clamping plate are connected through the adjusting screw and the nut, and the fastening of the connecting pipe and the jacking opening is realized through the adjusting of the adjusting screw and the nut.

[0031] S2: install the numerical control device: the two ends of the numerical control device are connected with the connecting pipe and the first conveying pipeline respectively through the clamp, and are used to close or open the conveying of concrete to the steel pipe column.

[0032] S3: install the monitoring device: the two ends of the monitoring device are connected with the first conveying pipeline and the second conveying pipeline respectively through the clamp, and can directly display the cumulative pouring concrete quantity data, the concrete pumping pressure data and the concrete temperature data.

[0033] S4: install the observation device: the observation device is arranged at the top of the steel pipe column, detects the rising speed of the concrete, and ensures that the concrete rises steadily.

[0034] S5: compare the rising speed data of the concrete detected by the observation device, the data monitored by the monitoring device and the simulation results, and realize data feedback, so that the concrete pouring quality can be more directly controlled.

[0035] The present application has the following beneficial effects: (1) The present application provides a steel pipe concrete visual jacking device and construction method, which aims to completely solve the problems of steel pipe concrete pouring quantity control and one-time jacking forming quality, and the device is convenient and fast to operate, has strong applicability, good sealing performance, is visual during the concrete pouring process, effectively improves the construction quality of the concrete in the steel pipe, reduces the pollution caused by excessive concrete jacking, and greatly saves the construction cost.

[0036] (2) In the present application, the arc-shaped interface plate and the arc-shaped clamping plate are connected through the adjusting screw and the nut, the two plates form a wrapping state at the jacking opening interface of the steel pipe column, and the connection strength at the interface is strengthened; in addition, according to the size of the steel pipe column, the size between the arc-shaped interface plate and the arc-shaped clamping plate can be adjusted through the adjusting screw and the nut, so that the jacking device is applicable to steel pipe columns of different diameters, and the universality of the jacking device is improved.

[0037] (3) The electric stop valve of the present application is driven by a hydraulic oil cylinder, can effectively and accurately adjust the concrete flow, and makes the operation of the stop valve more convenient and fast through wireless control; in addition, the two ends of the hydraulic electric stop valve interface are connected through the clamp, improving the turnover of materials.

[0038] (4) The present application installs a flow meter on the concrete conveying pipeline, can directly display the cumulative pouring concrete quantity, the concrete pumping pressure and the concrete temperature, so as to strengthen the management of the concrete pouring process and improve the pouring concrete construction quality.

[0039] (5) The millimeter wave wireless radar liquid level instrument is installed at the top of the steel column, millimeter radar waves are selected, temperature changes can be perceived, concrete temperature changes can be effectively monitored, and concrete construction quality can be controlled; the radar signal acquisition and transmission are completed, the monitoring of the poured concrete liquid level is completed, data is fed back to the mobile phone and the client through wireless transmission, the poured concrete liquid level height can be directly and intuitively reflected, and whether the deformation amount of the steel column in the pouring process is within the threshold value is judged according to the imaging form change of the wireless radar liquid level instrument.

[0040] (6) Through simulation data, real-time data comparison with the flow meter and the millimeter wave wireless radar liquid level instrument, accurate feedback of the jacking process, and the purpose of not wasting concrete and not polluting the surface of the steel pipe column is achieved. In addition, for the same specification of steel pipe column, after the simulation data, the flow meter and the millimeter wave wireless radar liquid level instrument data comparison are correct, subsequent jacking of the same specification steel pipe column only needs to set the concrete volume jacking to be completed, which improves the construction efficiency while reducing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a structural schematic diagram of a steel pipe concrete visual jacking device.

[0042] Figure 2 is a structural schematic diagram of a fastening device and a sealing device in the steel pipe concrete visual jacking device.

[0043] Figure 3 is a structural schematic diagram of a numerical control device in the steel pipe concrete visual jacking device.

[0044] Figure 4 is a structural schematic diagram of an observation device in the steel pipe concrete visual jacking device.

[0045] Figure 5 is a wireless control schematic diagram of the numerical control device in the steel pipe concrete visual jacking device.

[0046] Figure 6 is a steel pipe column modeling and model mesh division schematic diagram of the steel pipe concrete visual jacking device.

[0047] Figure 7 is a concrete jacking APP main interface design diagram of the steel pipe concrete visual jacking device.

[0048] Figure 8 is a pumping dynamic pressure change schematic diagram of the steel pipe concrete visual jacking device.

[0049] The wireless radar liquid level gauge-1, the arc-shaped interface plate-2, the arc-shaped clamping plate-3, the adjusting screw-4, the nut-5, the second conveying pipeline-6, the hydraulic electric cut-off valve-7, the first conveying pipeline-8, the flow meter-9, the instrument support-10, the steel pipe column-11, the rubber sealing ring-21, the connecting pipe-22, the oil cylinder-71, the cut-off plate-72, the cut-off valve base-73, the hydraulic pipe-74, the hydraulic pump-75 and the control box-76. DETAILED DESCRIPTION

[0050] The application will be further described below in conjunction with the drawings and specific preferred embodiments.

[0051] In the description of the application, it should be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and "first", "second" and the like do not represent the importance of the parts, and therefore cannot be understood as a limitation on the application. The specific dimensions used in the embodiments are only for the purpose of illustrating the technical solutions and do not limit the protection scope of the application.

[0052] As Figure 1 shown, a steel pipe concrete visual jacking device, comprising a steel pipe column, a conveying pipeline, a fastening device, a sealing device, a numerical control device, a monitoring device and an observation device.

[0053] The steel pipe column 11 has a jacking opening in the lower part; The conveying pipeline comprises a connecting pipe 22; One end of the connecting pipe is inserted and connected to the jacking opening through the fastening device; wherein the tightness of the fastening device can be adjusted to adjust the tightness of the inserted and connected connecting pipe and jacking opening; further, by adjusting the fastening device to compress the connecting pipe to prevent it from falling off and affecting the overall jacking effect.

[0054] The fastening device comprises a semicircular arc-shaped clamping plate 3 and an arc-shaped interface plate 2 of the same shape; The arc-shaped clamping plate 3 and the arc-shaped interface plate 2 are both formed with two side edges, and the two side edges are both provided with an adjusting screw 4 and a nut 5, and the adjusting screw and the nut are used to adjust the tightness of the fastening device. As Figure 1 shown, one end of the connecting pipe is fixed at the position of the jacking opening of the steel pipe column through the adjusting screw and the nut, realizing the full surrounding reinforcement of the interface of the steel pipe column.

[0055] Further, the arc-shaped interface plate is provided with a through opening corresponding to the position of the jacking opening, and the connecting pipe extends into the jacking opening of the steel pipe column through the through opening; the connecting pipe is fixedly connected with the through opening.

[0056] Preferably, the connecting pipe is welded to the port for fixation.

[0057] like Figures 1-2 As shown, the arc-shaped interface plate and the arc-shaped clamping plate are connected by adjusting screws and nuts. The two plates form a wrapping effect on the interface of the steel pipe column lifting opening, strengthening the connection strength at the interface. In addition, according to the size of the steel pipe column, the size between the arc-shaped interface plate and the arc-shaped clamping plate can be adjusted by adjusting the screws and nuts to ensure that the lifting device is suitable for steel pipe columns of different diameters and improve the versatility of the lifting device.

[0058] Furthermore, it also includes a sealing device, which is located at the interface between the connecting pipe and the jacking port to improve the sealing effect at the interface, prevent grouting or even leakage, and ensure the full pressure delivery of concrete. Preferably, such as Figure 2 As shown, the sealing device is a rubber sealing ring 21, which is arranged around the end of the connecting pipe near the lifting port. Figures 1-2 As shown, the fastening device is adjusted to press one end of the connecting pipe tightly against the jacking port. At this time, the rubber sealing ring is clamped between the arc-shaped interface plate and the jacking port of the steel pipe column. The setting of the rubber sealing ring effectively prevents concrete leakage and pumping pressure loss caused by poor sealing during the concrete pouring process, and effectively ensures the sealing and stability of concrete delivery at the interface.

[0059] The conveying pipeline also includes a first conveying pipeline 8 and a second conveying pipeline 6; A CNC device is connected between the connecting pipe and the first conveying pipe; The CNC device includes a hydraulic-electric shut-off valve 7 and a hydraulic pump 75; such as Figure 1 As shown, the two ends of the hydraulic electric shut-off valve are connected to the connecting pipe and the first conveying pipe respectively through clamps, effectively controlling the conveying of concrete; in addition, the two ends of the hydraulic electric shut-off valve interface are connected by clamps, which can improve the turnover of materials.

[0060] Furthermore, the hydraulic-electric shut-off valve is connected to an external hydraulic pump via a hydraulic pipe.

[0061] The hydraulic-electric shut-off valve 7 includes a shut-off valve base 73 with a flow passage, and a flow-blocking plate 72 slidably disposed inside the shut-off valve base. The size of the flow passage is adjusted by the sliding of the flow-blocking plate inside the shut-off valve base. Figure 3 As shown, when the throttle plate slides down to the bottom of the shut-off valve base, the flow passage closes, and the hydraulic electric shut-off valve closes. As the throttle plate gradually slides upward, the flow passage gradually opens. When the throttle plate slides to the top of the shut-off valve base, the flow passage opens to its maximum, and the hydraulic electric shut-off valve opens completely.

[0062] The hydraulic motorized stop valve is arranged with oil cylinders 71 on both sides, one end of the oil cylinder is connected with the stop valve base through bolts, the other end of the oil cylinder is connected with the stop plate through bolts, the oil cylinder is connected with the hydraulic pump 75 through the hydraulic pipe 74, the hydraulic pump is connected with the control box 76, and the control box is arranged with a controller; the hydraulic motorized stop valve is driven by the hydraulic oil cylinder, can effectively and accurately adjust the concrete flow, and is wirelessly controlled to make the operation of the hydraulic motorized stop valve more convenient and fast.

[0063] Specifically, the hydraulic pump is controlled through the control box, the hydraulic pump controls the extension and contraction of the oil cylinder, the extension and contraction of the oil cylinder realizes the sliding of the stop plate relative to the stop valve base, so that the size of the concrete flow delivered to the steel pipe column is adjusted.

[0064] Further, as shown in Figure 3 、 5 , the control box 76 is increased with an electronic module to realize remote digital precise control. The controller 761 can be controlled through the switch module 762 and the remote control module 763, and the control priority of the switch module 762 is higher than that of the remote control module 763.

[0065] Further, the remote control module 763 includes an infrared remote control module 764, a mobile phone APP remote control module 765 and a data signal feedback remote control module 766, which provides diversified control modes for the operator and greatly improves the convenience and flexibility of operation.

[0066] The monitoring device is connected between the first conveying pipeline and the second conveying pipeline. Preferably, the monitoring device is a flow meter 9, which is installed on the concrete conveying pipeline to directly display the pumping speed, the cumulative poured concrete amount, the concrete pumping pressure and the concrete temperature, so as to strengthen the management of the concrete pouring process and improve the pouring concrete construction quality.

[0067] As shown in Figure 1 , the flow meter is connected with the first conveying pipeline and the second conveying pipeline through the clamps at both ends, detects the pumping speed of the concrete, ensures the stable delivery of the concrete and guarantees the forming quality of the steel pipe concrete.

[0068] The observation device is arranged at the top of the steel pipe column.

[0069] Further, the observation device is a millimeter wave band wireless radar liquid level meter, which is installed on the top of the steel pipe column through an instrument support to observe the rising height and speed of the concrete.

[0070] The wireless radar liquid level meter selects millimeter radar waves, can perceive the change of temperature, effectively monitors the change of concrete temperature, and controls the quality of concrete construction; the wireless radar liquid level meter can monitor the liquid level of the poured concrete through radar signal collection, transmission, and complete the monitoring of the poured concrete liquid level, and can intuitively reflect the liquid level of the poured concrete through wireless transmission of data feedback to the mobile phone and client; the imaging form change of the wireless radar liquid level meter is used to judge whether the deformation amount of the steel column in the pouring process is within the threshold value.

[0071] Through the millimeter wave radar wave signal collection and transmission technology, the real-time monitoring of the poured concrete liquid level is completed, and the data is fed back to the mobile phone and client through wireless transmission. The operator can observe the liquid level of the poured concrete at any time through the mobile phone App and client, and timely master the progress and state of the concrete pouring, which provides strong technical support and data guarantee for the construction process.

[0072] The application also provides a construction method of the steel pipe concrete visual jacking device, which comprises a simulation part and has the following steps. S1: test the density and rheological parameters (τ0, k, n) of the concrete used for jacking, wherein τ0 is the minimum shear stress threshold required for the fluid to start flowing; k reflects the viscous degree of the fluid when the yield stress is exceeded; n represents the shear response type of the fluid, wherein n<1: shear thinning, n>1: shear thickening.

[0073] S2: model and mesh divide according to the size of the steel pipe column design drawing, and calculate the concrete volume of the steel pipe column and the static pressure of the feeding port after jacking through steady state calculation.

[0074] S3: set the pumping rate for simulation, and select the pump model according to the result.

[0075] S4: obtain the continuous and stable pumping dynamic pressure change data and pumping rate through the monitoring device, and then obtain the steel pipe column concrete volume by combining the pumping rate and the steady state calculation, so as to obtain the static pressure equation.

[0076] S5: superimpose the dynamic pressure change data obtained by the monitoring device on the static pressure equation, input the software for simulation, obtain the related data in the jacking process, and then export and store in the mobile phone APP for subsequent real-time monitoring on site.

[0077] Further, the practical operation part further comprises the following steps: S1: connect and insert one end of the connecting pipe with a sealing ring in the arc-shaped interface plate to the jacking port of the steel pipe column, connect the arc-shaped interface plate and the arc-shaped clamping plate through the adjusting screw and the nut, and realize the fastening of the connecting pipe and the jacking port interface through the adjustment of the adjusting screw and the nut.

[0078] S2: install the numerical control device: the numerical control device is connected with the connecting pipe and the first conveying pipe through the clamp at both ends, so as to close or open the conveying of concrete to the steel pipe column.

[0079] S3: install the monitoring device: the monitoring device is connected with the first conveying pipe and the second conveying pipe through the clamp at both ends, which can directly display the cumulative pouring concrete data, concrete pumping pressure data and concrete temperature data.

[0080] S4: install the observation device: the observation device is arranged at the top of the steel pipe column to detect the rising speed of the concrete and ensure the stable rising of the concrete.

[0081] S5: compare the rising speed data of the concrete detected by the observation device, the data monitored by the monitoring device and the simulation results, and realize data feedback to more directly control the concrete pouring quality.

[0082] The application compares the data in real time with the flow meter and the millimeter wave wireless radar liquid level meter through simulation data, accurately feeds back the jacking process, and achieves the purpose of not wasting concrete and not polluting the surface of the steel pipe column. In addition, for the same specification of steel pipe column, after the simulation data, the flow meter and the millimeter wave wireless radar liquid level meter data comparison are correct, the subsequent jacking of the same specification steel pipe column only needs to set the concrete volume jacking to be completed, which improves the construction efficiency at low cost.

[0083] The following will be combined with example 1 and the attached Figures 1-8 The application will be further described in detail: Example

[0084] Basic information: The steel pipe column is divided into four sections, each section is 10.8m, and the total length is 43.2m.

[0085] As Figure 6 shown, the diameters of the steel pipe column from bottom to top (from ⑤→④→③→②→①) are 1.2m, 1.1m, 1m, 0.8m and 0.7m respectively, and there are 14 transverse partitions.

[0086] The concrete used for jacking is C45 self-compacting concrete with a slump of 268mm.

[0087] The average temperature on the jacking day is 22℃, and there are two types of pump trucks available on the project site, which are: low pressure pump truck (maximum pumping pressure 10Mpa) and high pressure pump truck (maximum pumping pressure 22Mpa), the pumping rate of the two types of pump trucks is about 50m 3 / h.

[0088] This example is divided into simulation and operation to realize jacking.

[0089] First, the simulation part is as follows:Figures 1-4 As shown, comprising the following steps: S1: test the density of self-compacting concrete is 2417 kg / m3, by rheometer test its τ0 is 140 N / m2, k is 33 Pa.s, n is 1.088 (software automatically records torque, speed and corresponding shear stress and rate, data import and select "Herschel-Bulkley" model, software automatically output: τ0 (Pa), k (Pa.s n), n (unitless)); three times test, three test results take the average value.

[0090] S2: as shown, according to the size of steel pipe column design drawing modeling and model mesh division, and through the steady-state calculation of steel pipe column concrete quantity and jacking after the completion of the feed inlet static pressure, wherein, the steel pipe column concrete quantity is 27.2 m3, jacking after the completion of the feed inlet static pressure is 1.2 MPa. Figure 6

[0091] S3: set the pumping rate to 50 m3 / h for simulation, the results show that the maximum pumping pressure is 10.3 Mpa (including the power loss of oil pump), low pressure pump truck can't meet the conditions, so choose 22 Mpa high pressure pump truck.

[0092] S4: steel pipe column jacking pressure is divided into static pressure and dynamic pressure, as shown in Figure 8 , through the monitoring device to obtain the continuous 8 seconds (36 seconds in continuous 8 seconds) pumping dynamic pressure change data and pumping rate (1.14 m3 / min), combined with steady-state calculation of steel pipe column concrete quantity 27.2 m3, can get static pressure equation f (t) = 571.4t.

[0093] S5: superimposed static pressure equation f (t) = 571.4t of the obtained dynamic pressure change data, input software for simulation, get the relevant data in the process of jacking, export and store in mobile phone APP for subsequent real-time monitoring on site.

[0094] Among them, the management personnel record the main data for field adjustment, the main data are: the maximum pumping pressure is 11.2 Mpa, the total jacking time is 31.2 min, the total concrete quantity is 27.2 m3, the maximum vertical displacement is 4 mm.

[0095] Two is the operation part, as shown in Figures 5-8 , comprising the following steps: S1: install fastening device: the end of the connecting pipe with sealing ring in the arc-shaped interface plate is inserted into the jacking port of the steel pipe column, the arc-shaped interface plate and the arc-shaped clamp plate are connected through the adjusting screw and the nut, and the fastening of the connecting pipe and the jacking port is realized through the adjustment of the adjusting screw and the nut.

[0096] ​​S2: Install CNC device: The two ends of the CNC device are connected to the connecting pipe and the first conveying pipe respectively through clamps to adjust the flow rate of concrete delivered to the steel pipe column.

[0097] S3: Install monitoring device: The two ends of the monitoring device are connected to the first and second conveying pipes respectively through clamps, which can intuitively display the cumulative amount of concrete poured, concrete pumping pressure, and concrete temperature.

[0098] Steps S1-S3 complete the assembly of the steel-concrete composite lifting device.

[0099] S4: Install observation device: The observation device is set at the top of the steel pipe column to detect the concrete rising speed and ensure that the concrete rises steadily.

[0100] Step S4 completes the assembly of the steel-concrete composite visualization device, which allows for clear and real-time observation of the concrete jacking status through the main interface of a self-designed mobile APP.

[0101] S5: Compare and provide feedback on the concrete rising speed data detected by the observation device, the data monitored by the monitoring device, and the simulation results to more intuitively control the quality of concrete pouring.

[0102] like Figures 7-8 As shown in the comparison results of real-time monitoring data from the APP, during the entire jacking process, the jacking volume and pumping pressure recorded by the flow meter, as well as the liquid level height and vertical displacement data from the wireless radar, all differed from the simulation results by less than 2%, meeting the expected results. Therefore, under the same construction conditions (same pump truck, same lubrication material, same type and length of access pipe), the same type of steel pipe column will be 27.2m. 3 The concrete is lifted until all the concrete volume is lifted.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the protection scope of the present invention.

Claims

1. A concrete filled steel tube visualisation jacking device characterised in that: The utility model relates to a kind of steel pipe column lifting device, including: Steel pipe column, lower part is provided with jacking opening; Delivery pipeline, including connecting pipe, first delivery pipeline and second delivery pipeline; Wherein, connecting pipe, one end is inserted with jacking opening through fastening device and is connected; Fastening device, including semicircular arc clamping plate and arc interface plate of same shape; Arc interface plate is provided with through hole corresponding the position of jacking opening, connecting pipe is inserted into steel pipe column jacking opening through through hole; Sealing device, it is located at the interface of connecting pipe and jacking opening; Numerical control device, it is located between connecting pipe and first delivery pipeline; Monitoring device, it is located between first delivery pipeline and second delivery pipeline; Observation device, it is located at the top of steel pipe column.

2. The visualisation and jacking apparatus for concrete filled steel tubes according to claim 1, characterised in that: Connecting pipe and through hole are welded and fixed.

3. The visualizing jacking device for concrete filled steel tube according to claim 1, characterized in that: Sealing device is rubber seal ring, rubber seal ring is located at the one end of connecting pipe close to jacking opening.

4. The visualizing jacking device for concrete filled steel tube according to claim 1, characterized in that: Numerical control device includes hydraulic motor-operated stop valve and hydraulic pump;Hydraulic motor-operated stop valve is connected with connecting pipe and first delivery pipeline respectively through clamp on both ends, and hydraulic motor-operated stop valve is connected with external hydraulic pump through hydraulic pipe.

5. The visualisation and jacking apparatus for concrete filled steel tubes according to claim 4, characterised in that: Hydraulic motor-operated stop valve includes stop valve base provided with flow through hole, and intercepting plate is slidably arranged in the inside of stop valve base;Oil cylinder is arranged on both sides of hydraulic motor-operated stop valve, one end of oil cylinder is connected with stop valve base through bolt, the other end of oil cylinder is connected with intercepting plate through bolt, oil cylinder is connected with hydraulic pump through hydraulic pipe, hydraulic pump is connected with control box, and controller is arranged in control box.

6. The visualizing jacking device for concrete filled steel tube according to claim 1, characterized in that: Controller is controlled by switch module and remote control module;Wherein, remote control module includes infrared remote control module, mobile phone APP remote control module and data signal feedback remote control module.

7. The visualizing jacking device for concrete filled steel tube according to claim 1, characterized in that: Monitoring device is flow meter, and flow meter is connected with first delivery pipeline and second delivery pipeline respectively through clamp on both ends.

8. The visualizing jacking device for concrete filled steel tube according to claim 1, characterized in that: Observation device is millimeter wave band wireless radar liquid level meter, and wireless radar liquid level meter is installed on the top of steel pipe column through instrument support.

9. A method of constructing a visualisation jacking arrangement for a concrete filled steel tube according to any one of claims 1 to 8, characterised in that: Including simulation part, steps are as follows: S1: test the density and rheological parameters (‌τ0, k, n) of concrete used for jacking, in rheological parameters, τ0 is the minimum shear stress threshold required for fluid to start flowing, k reflects the viscous degree of fluid after exceeding yield stress, and n represents the shear response type of fluid; S2: model and model mesh are divided according to the size of steel pipe column design drawing, and the static pressure of steel pipe column concrete quantity and jacking completion is calculated through steady state; S3: setting pumping rate is simulated, and pump model is selected according to the result; S4: continuous stable pumping dynamic pressure change data and pumping rate are obtained through monitoring device, and the static pressure equation is obtained by combining pumping rate and steady state calculation; S5: dynamic pressure change data obtained by monitoring device is superimposed on static pressure equation, input software is simulated, relevant data in jacking process are obtained, and are exported and stored in mobile phone APP for subsequent real-time monitoring on site.

10. The construction method of the concrete filled steel tube visualizing jacking-up device according to claim 9, characterized in that: Still including practical operation part, steps are as follows: S1: the end of the connecting pipe with the sealing ring in the arc-shaped interface plate is butted and inserted with the jacking opening of the steel pipe column, the arc-shaped interface plate is connected with the arc-shaped clamping plate through the adjusting screw and nut, and the fastening at the interface between the connecting pipe and the jacking opening is realized through the adjustment of the adjusting screw and nut; S2: install the numerical control device: the two ends of the numerical control device are connected with the connecting pipe and the first conveying pipeline respectively through the clamps, and are used to close or open the conveying of the concrete to the steel pipe column; S3: install the monitoring device: the two ends of the monitoring device are connected with the first conveying pipeline and the second conveying pipeline respectively through the clamps, and can directly display the accumulated pouring concrete quantity data, the concrete pumping pressure data and the concrete temperature data; S4: install the observation device: the observation device is arranged at the top of the steel pipe column, detects the rising speed of the concrete, and ensures the steady rising of the concrete; S5: compare the rising speed data of the concrete detected by the observation device, the data monitored by the monitoring device and the simulation results, and realize data feedback, so as to more directly control the concrete pouring quality.

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