Method for determining the sliding height of the slipform based on silo concrete strength detection

Abstract

The present invention discloses a method for determining the sliding height of a sliding form based on the strength detection of silo concrete. First, a detection unit is directly inserted into the silo concrete to obtain the designed parameter value; secondly, the sliding height of the sliding form is calculated and determined based on the obtained relevant parameters, the concrete strength required by the sliding form specification, and the height of the detection unit in the silo concrete. The present invention relies on inserting the push rod of the telescopic thruster into the concrete, obtaining the relevant parameters, and then calculating and determining the sliding height of the sliding form, which has the advantages of simple structure, low cost, and high degree of automation.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and more particularly to a method for determining the sliding height of a sliding form based on silo concrete strength detection. Background Art

[0002] At present, silos are basically constructed using the slipform technology. The timing of lifting the sliding formwork is controlled by the concrete. The specification requires that the formwork can be lifted when the bottom layer inside the formwork reaches 0.2-0.4Mpa. There are currently two main methods for sliding: one is the method of pressing the side surface of concrete by hand, and the other is the method of testing the penetration of test blocks under the same conditions.

[0003] The concrete strength method is to press the concrete side surface by hand. After the silo slipform is lifted, the worker presses the concrete on the cylinder wall with his hand. If the handprint can be pressed and the handprint can rebound to its original state after letting go, it means that the concrete is about 0.2-0.4Mpa, which meets the requirements of the specification. According to experience, it can be directly lifted by about 250cm, or the template can be continuously lifted until the handprint cannot rebound to its original state after pressing the hand, and then the sliding is stopped. Different engineering areas are different. The empirical method determines the lifting height of the slipform without the actual measured data of concrete strength, and there is a problem of the chain of evidence not being closed in guiding on-site construction. This method is greatly affected by the subjectivity of the inspectors. The strength of pressing the handprint varies, the depth of the handprint varies, and the degree of rebound of the handprint varies. There is no accurate regulation. It depends entirely on the subjective judgment of the inspectors, which cannot accurately reflect the concrete strength, resulting in inaccurate test data and inability to form effective records. It may cause the slipform to be lifted too high, resulting in the collapse of the silo wall, or the slipform to be lifted too low, resulting in too much friction in the lower wheel, and unable to slide. In addition, this method of testing concrete strength requires manual labor to judge the concrete strength within a limited time. The number of points where personnel on the slipform platform press the concrete wall is limited, and there is not enough time to immediately determine the concrete strength of the entire cross-section of the silo.

[0004] The same condition test block penetration test method is a method recommended by the specification, but it is rarely adopted in actual projects. Its main disadvantages are that the same condition test block cannot accurately reflect the boundary conditions of the slipform concrete, and the detection instrument is not common. First, the common concrete penetration meter will not measure accurately when measuring low-strength concrete such as 0.2-0.4Mpa due to instrument accuracy problems. If you want to measure the standard, you need to purchase a special sensitive penetration instrument, and there is a problem that the price of high-precision concrete strength testing equipment is too expensive. Secondly, because the experimental instruments cannot be arranged on the slipform platform due to construction needs, the same condition test block must be placed on the ground and tested in the laboratory. The temperature natural boundary conditions and vibration conditions of the concrete in the formwork and the concrete test block are different. On the one hand, the wind at the slipform site is strong and the wind on the ground is small, and the wind blows the concrete to cause different temperature differences in the concrete. On the other hand, the hydration heat of the concrete in the slipform formwork and the hydration heat of the test block will also be different, resulting in a significant time difference in the concrete reaching a low strength level of 0.2-0.4Mpa, resulting in differences and inaccuracies between the test block strength and the silo concrete strength. Finally, the same condition test block penetration method requires each truckload of concrete to be used as the measurement partition, which makes it impossible to instantly determine the concrete strength of the entire cross-section of the silo, and thus cannot directly guide the determination of the sliding form sliding height. Summary of the invention

[0005] One object of the present invention is to provide a method for determining the sliding height of the slipform based on the silo concrete strength detection. The method relies on inserting the push rod of the telescopic thruster into the concrete, obtains relevant parameters, and calculates and determines the sliding height of the slipform. The method has the advantages of simple structure, low cost and high degree of automation.

[0006] In order to solve the above technical problems, the present invention provides a method for determining the sliding height of the slipform based on the silo concrete strength detection. First, the detection unit is directly inserted into the silo concrete to obtain the designed parameter value; secondly, the sliding height of the slipform is determined by calculation based on the obtained relevant parameters, the concrete strength required by the slipform specification and the height of the detection unit in the silo concrete.

[0007] Preferably, the detection unit is a telescopic thruster, a push rod of which extends downward into the silo concrete, and when the telescopic thruster is shortened to the limit, there is a gap between it and the top of the formwork. The telescopic thruster is connected to a control console via a cable data line, and parameter values ​​of the telescopic thruster are obtained through the control console, including the thrust value and the telescopic stroke value of the push rod.

[0008] Preferably, a plurality of detection units are provided, which are evenly spaced in a circle along the silo circumferential direction, and one control console is provided. The cable data lines of the plurality of detection units are arranged in a circumferential direction outside the sliding form and are connected and controlled by the same control console.

[0009] Preferably, the telescopic thruster is slidably arranged along the axial direction of the silo.

[0010] Preferably, the method of determining the full-section sliding form lifting height by the concrete strength required by the sliding form specification and performing the sliding form lifting construction is specifically as follows:

[0011] The first step is to lay out multiple telescopic thrusters and measure the distance D from the bottom of the telescopic thruster to the top of the formwork. The concrete pouring height, i.e., the formwork height, is D1.

[0012] The second step is to set the maximum thrust of the telescopic thruster to F = P * A based on the concrete strength P required by the slipform specification and the cross-sectional area A of the push rod end of the telescopic thruster;

[0013] Step 3: When the thrust of the telescopic thruster reaches F and the push rod fails to move forward 3 seconds later, the extension is stopped and the current telescopic stroke L1 is sent to the telescopic thruster console;

[0014] Step 4: The telescopic thruster control console obtains the telescopic stroke L1 of the push rods of multiple telescopic thrusters of the full cross section and performs statistics, taking the maximum value L of each distance L = L1-D max , that is, the maximum lifting height of this sliding mode is H = D1-L max ;

[0015] Step 5: The push rod of the telescopic thruster is retracted and reset to lift the sliding formwork, and the maximum height does not exceed H;

[0016] Step 6: After the slipform is lifted into place, continue pouring concrete; slide the telescopic thruster horizontally to ensure that the push rod is in a different position from the previous measurement during the next measurement;

[0017] Step 7. After the concrete pouring is completed, you can repeat the above steps 2 to 6 to complete the non-stop slipform sliding construction.

[0018] Preferably, the method of determining the sliding form lifting height by setting the concrete pouring height each time and performing the sliding form lifting construction is specifically as follows:

[0019] The first step is to lay out multiple telescopic thrusters, measure the distance D from the bottom of the telescopic thruster to the top of the formwork, and pour concrete to the top of the formwork;

[0020] The second step is to set the pouring height of each slipform concrete pouring to H and the maximum travel distance of the telescopic thruster push rod to L. max Set to H+D;

[0021] Step 3: The push rod of the telescopic thruster is continuously increased and extended. The push rod is continuously increased for 3 seconds but the push rod does not extend or the maximum travel distance L of the push rod is reached. max When , the extension stops; at this time, the current thrust F is sent to the telescopic thruster console;

[0022] Step 4: The thrust of the telescopic thruster is F, the cross-sectional area of ​​the end of the push rod is A, and the actual strength of the concrete is calculated to be P=F / A; if the actual strength of the concrete reaches the concrete strength required by the slipform specification, the formwork is started to be lifted, and the lifting height is H; if the actual strength of the concrete is less than the concrete strength required by the slipform specification, the telescopic thruster is slid to another measuring position, and after waiting for the set time, the above measurement is continued until the actual strength of the concrete reaches the concrete strength required by the slipform specification, and the formwork is started to be lifted, and the lifting height is H;

[0023] Step 5: The push rod of the telescopic thruster is retracted and reset to lift the sliding formwork, and the maximum height does not exceed H;

[0024] Step 6: After the slipform is lifted into place, continue pouring concrete to the top of the formwork; slide the telescopic thruster horizontally to ensure that the push rod is in a different position during the next measurement than the previous measurement;

[0025] Step 7. After the concrete pouring is completed, you can repeat the above steps 2 to 6 to complete the non-stop slipform sliding construction.

[0026] Preferably, a plurality of sliding form lifting frames are evenly spaced in the circumferential direction of the silo on the sliding form platform, and the plurality of detection units are arranged on the plurality of sliding form lifting frames in a one-to-one correspondence.

[0027] Preferably, the top of the slipform lifting frame is a pair of double-beam channel steels arranged relatively at intervals, the slipform climbing rod passes through the middle of the pair of double-beam channel steels, and two sets of pulleys are arranged on both sides of the slipform climbing rod on the pair of double-beam channel steels, which are slidably arranged along the double-beam channel steels, and each set of pulleys located on the same side of the pair of double-beam channel steels are connected by an axis, and the telescopic thruster is connected to the axis of the two sets of pulleys.

[0028] Preferably, the center of the shaft is located on the gap between a pair of double-jointed channel steels of the cross beams, and each shaft is connected to a vertical suspension rod, which extends to the bottom of the double-jointed channel steels of the cross beams. The bottoms of the pair of suspension rods are connected to a suspension plate, and the suspension plate is connected to the telescopic thruster by bolts so that the telescopic thruster is located on one side of the slipform lifting frame.

[0029] The present invention has at least the following beneficial effects:

[0030] 1. This application solves the problem that the concrete strength test by pressing the concrete side surface by hand can only be inferred by manually measuring the data obtained from the surface points of the inner and outer walls of the concrete, but cannot display the true concrete strength of the entire cross section. The telescopic thruster of this application is connected to the hanger plate with bolts, the hanger rod is welded to the hanger plate, the hanger rod is welded to the shaft of the pulley with shaft, and the pulley moves axially on the double-jointed channel steel beam of the slipform lifting frame, so that the telescopic thruster can perform concrete strength detection at any point on the cross section from the outer wall to the inner wall at the position of the slipform lifting frame. The slipform lifting frame is evenly distributed around the silo, so that the concrete strength of the entire cross section of the silo can be measured in time.

[0031] 2. This application solves the problem of inaccurate test data caused by subjective reasons such as different pressing strength of workers, different depths of handprints, and different rebound degrees of handprints when measuring concrete strength by pressing the side surface of concrete. The telescopic thruster can set the thrust size to ensure that the thrust is stable when measuring concrete strength. The data is transmitted to the telescopic thruster console through a cable data line to ensure that the information of all measuring points in the silo is obtained immediately, with a high degree of automation.

[0032] 3. This application solves the problem that the lifting height of the slipform template is not supported by accurate concrete strength status data, which may cause the slipform to be lifted too high, resulting in the collapse of the warehouse wall, or the slipform to be lifted too low, resulting in too much friction resistance of the lower wheel to slide. The strength of the concrete can be determined instantly by combining the force feedback from the insertion of the telescopic thruster into the concrete with the cross-sectional area of ​​the rod end; combined with the depth of the telescopic thruster inserted into the concrete, the sliding height of the slipform and its feasibility can be determined.

[0033] 4. This application solves the problem that the strength of the test block and the strength of the silo concrete are different and inaccurate due to the inconsistency between the natural boundary conditions and vibration conditions of the concrete in the actual slipform and the test block concrete in the same condition test block penetration test method. This application directly tests the strength of the cylinder wall concrete through a telescopic thruster, avoiding the problem of inconsistency between the strength of the silo concrete and the strength of the test block caused by different conditions such as on-site vibration, direct sunlight heating, and constraints around the concrete caused by the test block test.

[0034] 5. This application solves the problem that the commonly used concrete penetration meter is inaccurate when testing low-strength concrete such as 0.2-0.4Mpa required by the slipform specification due to manual operation, and the price of high-precision concrete strength testing equipment is too expensive; the concrete penetration meter mainly relies on manual test blocks for low-strength concrete testing, and the penetration needle has a short distance into the concrete, and the error is large when it is judged manually. The telescopic thruster directly tests the concrete in the formwork that is more than 1 meter deep, without the need for manual pressure application, with a high degree of automation and high precision. The price of high-precision concrete strength testing equipment is 30,000 to 40,000 yuan, while a telescopic thruster plus matching pulleys and steel only costs 300 yuan, and a silo has about 30 to 50 of them. In addition, the telescopic thruster console and related lines cost about 3,000 yuan, so a silo only costs 12,000 to 18,000 yuan, and the equipment can be recycled, which can reduce the overall application cost by 50%.

[0035] 6. This application solves the problem that the same condition test block penetration method needs to measure the concrete poured by each concrete tank truck, which cannot immediately determine the concrete strength of the entire cross-section of the silo and cannot directly guide the determination of the sliding height of the slipform; the same condition test block penetration method cannot directly reflect the strength of the silo concrete for one week by pressing the concrete test block, and can only indirectly serve as the basis for the lifting height of the slipform. The telescopic thruster does not need to determine the concrete strength through the test block, but directly conducts strength tests on the concrete of one circle of the silo, directly determines the maximum value of the slipform height, and ensures that the height of the slipform template meets the requirements.

[0036] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is an elevation view of the detection unit of the present invention;

[0038] Figure 2 is a plan view of the detection unit of the present invention;

[0039] Figure 3 It is a top view of the overall structure of the present invention;

[0040] Figure 4 Schematic diagram of determining the sliding mode sliding height of the present invention Figure 1 ;

[0041] Figure 5 Schematic diagram of determining the sliding mode sliding height of the present invention Figure 2 ;

[0042] Figure 6 Schematic diagram of determining the sliding mode sliding height of the present invention Figure 3 ;

[0043] Figure 7 Schematic diagram of determining the sliding mode sliding height of the present invention Figure 4 .

[0044] Description of reference numerals:

[0045] 1. Telescopic thruster, 2. Cable data line, 3. Control console, 4. Double-jointed channel steel beam, 5. Pulley, 6. Hanging rod, 7. Hanging plate, 8. Bolt, 9. Slipform climbing rod, 10. Slipform lifting frame, 11. Slipform platform, 12. Silo. DETAILED DESCRIPTION

[0046] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement it according to the description.

[0047] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] like Figures 1 to 3 As shown, the present invention determines the sliding height of the sliding form by a real-time concrete strength detection system for the full cross-section of the silo sliding form. The system includes a plurality of detection units, which are evenly spaced in a circle along the silo 12 in the circumferential direction. A plurality of sliding form lifting frames 10 are evenly spaced in the circumferential direction of the silo 12 on the sliding form platform 11, which correspond exactly one to one with the plurality of detection units. The detection unit includes a telescopic thruster 1 arranged on the sliding form lifting frame 10, which is slidably arranged on the sliding form lifting frame 10 along the axial direction of the silo 12. The push rod of the telescopic thruster 1 extends downward into the concrete of the silo 12. When the telescopic thruster 1 is shortened to the limit, there is a gap between the telescopic thruster 1 and the top of the formwork. The telescopic thruster 1 is connected to a control console 3 arranged on the sliding form platform 11 through a cable data line 2, and the thrust value of the telescopic thruster 1 and the stroke value of the push rod are obtained through the control console 3.

[0049] The push rod of the telescopic thruster 1 extends into the concrete of the silo 12, and the thrust value of the telescopic thruster 1 and the stroke value of the push rod are obtained through the control console 3. The strength of the concrete is converted by the thrust value and the cross-sectional area of ​​the push rod, and the maximum height of the sliding form can be determined by combining the stroke value of the push rod. Multiple telescopic thrusters 1 are arranged at intervals in the annular direction, so that the concrete strength of the entire cross section of the silo 12 can be measured in time; and the telescopic thruster 1 can also slide axially, so that the telescopic thruster 1 can perform concrete strength detection at any point on the cross section from the outer wall to the inner wall at the position of the sliding form lifting frame.

[0050] In another embodiment, the control console 3 is provided with one, and the cable data lines 2 of multiple detection units are arranged in a circumferential manner on the outer side of the top of the slipform lifting frame 10 of the slipform outer platform, and are connected and controlled by the same control console 3. A circle of telescopic thruster 1 cable data lines 2 are arranged on the outer side of the top of the slipform lifting frame 10 of the slipform outer platform, connected to each telescopic thruster 1; a telescopic thruster control console 3 is arranged on the outer side of the slipform platform, and each telescopic thruster 1 is controlled through the telescopic thruster 1 cable data lines 2. The setting of the control console 3 ensures that all measuring point information of the silo 12 is obtained in real time, and the degree of automation is high.

[0051] In another embodiment, the top of the slipform lifting frame 10 is a pair of double-beam channel steels 4 relatively spaced apart, the slipform climbing rod 9 passes through the middle of the pair of double-beam channel steels 4, and two groups of pulleys 5 are arranged on both sides of the slipform climbing rod 9 on the pair of double-beam channel steels 4, which are slidably arranged along the double-beam channel steels 4, and each group of pulleys 5 located on the same side of the pair of double-beam channel steels 4 are connected by an axis, and the telescopic thruster 1 is connected to the axis of the two groups of pulleys 5.

[0052] The center of the shaft is located on the gap between a pair of double-jointed cross beam channel steels 4, and each shaft is connected to a vertical suspension rod 6, which extends to the bottom of the double-jointed cross beam channel steel 4. The bottoms of the pair of suspension rods 6 are connected to a suspension plate 7, and the suspension plate 7 is connected to the telescopic thruster 1 so that the telescopic thruster 1 is located on one side of the slipform lifting frame. The suspension plate 7 is connected to the telescopic thruster 1 by bolts 8.

[0053] Two sets of shaft pulleys 5 are arranged above the double-jointed channel steel 4 of the cross beam of the slipform lifting frame and on both sides of the slipform climbing rod, so that the pulleys 5 can roll on the upper flange of the channel steel. The axis center of the pulley 5 is in the gap between the double-jointed channel steels. There is a suspension rod 6, the upper section of which is welded to the axis of the shaft pulley 5, and the lower end is welded to the suspension plate 7, which is located below the lower flange of the double-jointed channel steel. The telescopic thruster 1 is bolted to the bottom of the suspension plate 7, so that when the shaft pulley 5 slides, it can drive the telescopic thruster 1 to move in the horizontal direction, which is convenient for measuring the concrete strength at different positions of the silo 12.

[0054] The present invention provides a method for determining the sliding height of a sliding form by using a real-time concrete strength detection system for the entire cross section of a silo sliding form, which mainly includes two methods.

[0055] The first method: determine the maximum sliding height of the entire section by determining the concrete strength. The method of determining the sliding height of the entire section of the sliding form according to the concrete strength required by the sliding form specification and performing the sliding form sliding construction is as follows:

[0056] The first step, such as Figure 4 As shown, a telescopic thruster is arranged on each slipform lifting frame of the silo, and the distance D from the bottom of the telescopic thruster to the top of the formwork is measured, and the concrete in the slipform formwork is poured full. At this time, the pouring height is the formwork height D1.

[0057] The second step is to set the maximum thrust of the telescopic thruster to F and start to extend. According to the requirements of the slipform specification, the concrete strength when the formwork rises must be within the range of 0.2 to 0.4 MPa, so the concrete strength when the formwork rises is determined to be P (P is 0.2 to 0.4 MPa). The cross-sectional area of ​​the push rod end of the telescopic thruster is A. The maximum thrust F = P*A.

[0058] The third step is Figure 5 As shown, when the thrust of the telescopic thruster reaches F and the push rod fails to move forward 3 seconds later, the extension is stopped and the current telescopic stroke L1 is sent to the telescopic thruster console.

[0059] Step 4: The telescopic thruster control console obtains the telescopic stroke L1 of all telescopic thrusters in the full cross section and makes statistics, taking the maximum value L of each stroke L = L1-D max , that is, the maximum lifting height of this sliding mode is H = D1-L max .

[0060] Step 5: Figure 6 As shown, the push rod of the telescopic thruster is retracted and reset, and the slipform jack lifts the slipform template to a maximum height not exceeding H.

[0061] Step 6: After lifting into place, carry out the work of steel bar binding, embedded parts embedding, concrete pouring, etc. At the same time, slide the telescopic thruster horizontally to ensure that the push rod is in a different position from the previous measurement during the next measurement.

[0062] Step 7. After the concrete pouring is completed, you can repeat the above steps 2 to 6 to complete the non-stop slipform sliding construction.

[0063] The second method is to determine the maximum sliding height of the entire section by setting the height of each concrete pouring. The method of determining the sliding height of the slipform by setting the height of each concrete pouring and performing the sliding construction is as follows:

[0064] The first step, such as Figure 4As shown, a telescopic thruster is arranged on each slipform lifting frame of the silo, and the distance D from the bottom of the thruster to the top of the formwork is measured. The slipform formwork is filled with concrete and preparations are made before the slipform lifting.

[0065] The second step is, Figure 7 As shown, the height of each slipform concrete pouring is set to H, and the maximum travel distance of the telescopic thruster push rod is L max Set to H+D.

[0066] Step 3: To prevent the push rod from being stuck by the coarse aggregate in the concrete, set the push rod of the telescopic thruster to not reach L. max , when the push rod does not extend after the force is continuously applied for 3 seconds, the extension stops. The push rod of the telescopic thruster starts to continuously apply force to extend the push rod. Finally, the push rod does not extend after the force is continuously applied for 3 seconds or the push rod reaches its maximum travel L max , stop extending, at this time, send the current thrust F to the telescopic thruster console.

[0067] Step 4: The thrust of the telescopic thruster is displayed as F, and the cross-sectional area of ​​the push rod end is A. According to the pressure formula, the concrete strength P = F / A can be obtained immediately. According to the requirements of the slipform specification, the concrete strength should be within the range of 0.2-0.4Mpa when the formwork is raised. When all P values ​​reach the 0.2-0.4Mpa required by the specification, the formwork can be lifted, and the lifting height is H. If the minimum value of P is less than 0.2Mpa, slide the telescopic thruster horizontally to ensure that the next measurement push rod is in a different position from the previous measurement. Wait for 10 minutes and measure here until P meets the requirements.

[0068] Step 5: Figure 6 As shown, the telescopic thrust rod is reset and the slipform jack lifts the slipform template to a maximum height not exceeding H.

[0069] Step 6: After lifting into place, carry out the work of steel bar binding, embedded parts embedding, concrete pouring, etc. At the same time, slide the telescopic thruster horizontally to ensure that the push rod is in a different position from the previous measurement during the next measurement.

[0070] Step 7. After the concrete pouring is completed, you can repeat the above steps 2 to 6 to complete the non-stop slipform sliding construction.

[0071] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation mode, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, other modifications can be easily implemented, so without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A method for determining the sliding height of a sliding form based on silo concrete strength detection, characterized in that: First, the detection unit is directly inserted into the silo concrete to obtain the designed parameter values; secondly, the sliding height of the slipform is calculated based on the obtained relevant parameters, the concrete strength required by the slipform specification, and the height of the detection unit in the silo concrete; The detection unit is a telescopic thruster, whose push rod extends downward into the silo concrete. When the telescopic thruster is shortened to the limit, there is a gap between the telescopic thruster and the top of the formwork. The telescopic thruster is connected to the console via a cable data line, and the parameter value of the telescopic thruster is obtained through the console, including the thrust value and the telescopic stroke value of the push rod; The detection units are arranged in a circle evenly spaced along the silo circumference, and the control console is provided at one. The cable data lines of the multiple detection units are arranged in a circle outside the sliding form and are connected and controlled by the same control console. The telescopic thruster is arranged to slide along the axial direction of the silo; A plurality of sliding form lifting frames are evenly spaced along the silo ring on the sliding form platform, and a plurality of detection units are correspondingly arranged on the plurality of sliding form lifting frames; The top of the sliding form lifting frame is a pair of double-beam channel steels arranged at a relative interval, the sliding form climbing rod passes through the middle of the pair of double-beam channel steels, and two sets of pulleys are arranged on both sides of the sliding form climbing rod on the pair of double-beam channel steels, which are slidably arranged along the double-beam channel steels, and each set of pulleys located on the same side of the pair of double-beam channel steels are connected by shafts, and the telescopic thruster is connected to the shafts of the two sets of pulleys; The center of the shaft is located on the gap between a pair of double-jointed channel steels of the cross beams. Each shaft is connected to a vertical suspension rod, which extends to the bottom of the double-jointed channel steels of the cross beams. The bottoms of the pair of suspension rods are connected to a suspension plate, and the suspension plate is connected to the telescopic thruster by bolts so that the telescopic thruster is located on one side of the slipform lifting frame.

2. The method for determining the sliding formwork lifting height based on silo concrete strength detection according to claim 1, characterized in that: The method of determining the full-section sliding form lifting height and carrying out the sliding form lifting construction by the concrete strength required by the sliding form specification is as follows: The first step is to lay out multiple telescopic thrusters and measure the distance D from the bottom of the telescopic thruster to the top of the formwork. The concrete pouring height, i.e., the formwork height, is D1. The second step is to set the maximum thrust of the telescopic thruster to F=P*A based on the concrete strength P required by the slipform specification and the cross-sectional area A of the push rod end of the telescopic thruster; Step 3: When the thrust of the telescopic thruster reaches F and the push rod fails to move forward 3 seconds later, the extension is stopped and the current telescopic stroke L1 is sent to the telescopic thruster console; Step 4: The telescopic thruster control console obtains the telescopic stroke L1 of the push rods of multiple telescopic thrusters of the full cross-section and performs statistics, taking the maximum value L of each distance L=L1-D max , that is, the maximum lifting height of this sliding mode is H = D1- L max ; Step 5: The push rod of the telescopic thruster is retracted and reset to lift the sliding formwork, and the maximum height does not exceed H; Step 6: After the slipform is lifted into place, continue pouring concrete; slide the telescopic thruster horizontally to ensure that the push rod is in a different position from the previous measurement during the next measurement; Step 7. After the concrete pouring is completed, you can repeat the above steps 2 to 6 to complete the non-stop slipform sliding construction.

3. The method for determining the sliding height of the sliding form based on the silo concrete strength detection according to claim 1 is characterized in that: The method of determining the sliding form lifting height by setting the concrete pouring height each time and performing the sliding form lifting construction is specifically as follows: The first step is to lay out multiple telescopic thrusters, measure the distance D from the bottom of the telescopic thruster to the top of the formwork, and pour concrete to the top of the formwork; The second step is to set the pouring height of each slipform concrete pouring to H and the maximum travel distance of the telescopic thruster push rod to L. max Set to H+D; Step 3: The push rod of the telescopic thruster is continuously increased and extended. The push rod is continuously increased for 3 seconds but the push rod does not extend or the maximum travel distance L of the push rod is reached. max When , the extension stops; at this time, the current thrust F is sent to the telescopic thruster console; Step 4: The thrust of the telescopic thruster is F, the cross-sectional area of ​​the end of the push rod is A, and the actual strength of the concrete is calculated to be P=F / A; if the actual strength of the concrete reaches the concrete strength required by the slipform specification, the formwork is started to be lifted, and the lifting height is H; if the actual strength of the concrete is less than the concrete strength required by the slipform specification, the telescopic thruster is slid to another measuring position, and after waiting for the set time, the above measurement is continued until the actual strength of the concrete reaches the concrete strength required by the slipform specification, and the formwork is started to be lifted, and the lifting height is H; Step 5: The push rod of the telescopic thruster is retracted and reset to lift the sliding formwork, and the maximum height does not exceed H; Step 6: After the slipform is lifted into place, continue pouring concrete to the top of the formwork; slide the telescopic thruster horizontally to ensure that the push rod is in a different position during the next measurement than the previous measurement; Step 7. After the concrete pouring is completed, you can repeat the above steps 2 to 6 to complete the non-stop slipform sliding construction.

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