A CRTS III type slab ballastless track self-compacting concrete intelligent pouring construction method

Abstract

The present application relates to the technical field of grouting construction method, and particularly relates to a CRTS III type slab ballastless track self-compacting concrete intelligent pouring construction method, which comprises the following steps: installing an edge sealing assembly between a track slab and a base slab, installing one set of electric control exhaust assembly at each corner of the edge sealing assembly, combining the edge sealing assembly, the electric control exhaust assembly, the track slab and the base slab to form a pouring cavity, setting one set of laser ranging assembly outside each set of electric control exhaust assembly, monitoring the height of the self-compacting concrete in the track slab, the base slab and the pouring cavity by the laser ranging assembly, injecting the self-compacting concrete into the pouring cavity through an electric control feeding hopper and diffusing and accumulating around the pouring cavity, dynamically controlling the pouring rate of the electric control feeding hopper by an external control terminal according to the obtained height data, closing the exhaust hole of the electric control exhaust assembly, continuously pouring the self-compacting concrete until the liquid level of the self-compacting concrete reaches the preset height in the anti-overflow pipe, and realizing feedforward control by constructing a target height function.

Description

Technical Field

[0001] This invention relates to the technical field of grouting construction methods, specifically to an intelligent grouting construction method for CRTSⅢ type slab track self-compacting concrete. Background Technology

[0002] CRTSⅢ type slab track is a type of high-speed rail track with completely independent intellectual property rights in my country. This type of track uses a reinforced self-compacting concrete filling layer to connect the track slab and the base plate, and has begun to be widely promoted and applied in high-speed rail construction. As the filling layer material, the quality of the self-compacting concrete pouring construction directly determines the track structure strength and long-term service performance.

[0003] In traditional grouting construction, workers monitor the grouting of self-compacting concrete through observation holes and manually control the grouting flow rate, typically keeping the grouting time between 8 and 12 minutes. However, manual grouting makes it difficult to control the construction quality. If the grouting flow rate is too fast, the self-compacting concrete may not completely fill the gaps between the track slab and the base plate, resulting in void defects. Alternatively, there may be obvious air bubbles or slag inclusions, indicating that the self-compacting concrete is not dense. Furthermore, gaps may exist between the self-compacting concrete and the track slab or the base plate, resulting in separation defects. In addition, there may be quality defects such as segregation of the self-compacting concrete, exposed aggregate, exposed reinforcement, honeycomb voids, sunken joints, large air bubble accumulation areas, and foam layers. These hidden quality defects gradually become apparent after operation, causing track unevenness or track cracking, which will lead to operational risks and huge repair costs. Therefore, a smart grouting construction method for self-compacting concrete of CRTSⅢ type slab track is proposed. Summary of the Invention

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a method for intelligent pouring construction of self-compacting concrete for CRTSⅢ type slab track.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a method for intelligent pouring construction of self-compacting concrete for CRTSⅢ type slab track, comprising the following steps:

[0006] Step S1: Install an edge sealing assembly between the track plate and the base plate, and install a set of electrically controlled exhaust assemblies at each of the four corners of the edge sealing assembly. The edge sealing assembly, the electrically controlled exhaust assembly, the track plate and the base plate are combined to form an injection cavity.

[0007] Step S2: A laser ranging component is installed outside each group of electrically controlled exhaust components. The laser ranging component monitors the height of the track plate, base plate and self-compacting concrete in the grouting cavity.

[0008] An overflow prevention pipe is installed in each injection hole and observation hole of the track slab. An electrically controlled material feeding funnel is installed at the upper end of the overflow prevention pipe of the injection hole, and a set of central laser rangefinders is installed in the overflow prevention pipe of the observation hole.

[0009] Step S3: Self-compacting concrete is injected into the electrically controlled feeding funnel. The self-compacting concrete is injected into the grouting cavity through the electrically controlled feeding funnel and spreads and accumulates around the grouting cavity. The laser ranging component monitors the height data of the self-compacting concrete in real time and uploads the height data to the external control terminal. The external control terminal dynamically controls the grouting rate of the electrically controlled feeding funnel based on the obtained height data.

[0010] Step S4: When the laser ranging component detects that the self-compacting concrete is overflowing from the vent of the electrically controlled venting component, the vent of the electrically controlled venting component is closed, and the self-compacting concrete continues to be poured until the liquid level of the self-compacting concrete reaches the preset height in the anti-overflow pipe, and the electrically controlled discharge funnel is closed.

[0011] Preferably, in step S1, the sealing assembly includes two sets of horizontal templates and two sets of vertical templates. The length and width of the horizontal templates and the vertical templates match the length and width of the track plate. After the two sets of horizontal templates and the two sets of vertical templates are spliced ​​together, the gap between the track plate and the base plate is sealed. The electrically controlled exhaust assembly is set between the connecting ends of the horizontal templates and the vertical templates. The top of the electrically controlled exhaust assembly has an exhaust hole that vertically connects to the injection chamber.

[0012] Preferably, in step S2, the laser ranging component includes a mounting bracket, two sets of track slab laser rangefinders and one set of corner laser rangefinders mounted on the mounting bracket. The measuring ends of the two sets of track slab laser rangefinders point to the top and side surfaces of the track slab, respectively, and the corner laser rangefinders point to the exhaust port of the electronically controlled exhaust component. The corner laser rangefinders measure the height of the self-compacting concrete in the grouting cavity at the exhaust port through the exhaust port.

[0013] Preferably, in step S2, the laser ranging component, the central laser rangefinder, the electrically controlled exhaust component, and the electrically controlled feeding hopper are all electrically connected to an external control terminal.

[0014] Preferably, in step S2, the distance between the top surface of the track plate and the top surface of the base plate is... The distance between the preset termination liquid level position of the overflow prevention pipe and the top surface of the base plate is... The height of the self-compacting concrete measured by the central laser rangefinder through the observation hole is the central pouring height. The height of the self-compacting concrete, measured by the corner laser rangefinder through the exhaust port of the electronically controlled exhaust assembly, is... , Number the corner points.

[0015] Preferably, in step S3, the method for dynamically controlling the pouring rate of self-compacting concrete is as follows:

[0016] Step S31: The standard Logistic function is used to describe the functional relationship between the pouring height of self-compacting concrete and time, and the reference height at the observation hole is obtained. expression:

[0017] ;

[0018] In the formula, The estimated time for the grouting operation is 13-15 minutes. To record the pouring time at the observation hole, timing begins when the central laser rangefinder detects a change in height and ends when the pouring reaches the final liquid level. It is a natural constant;

[0019] Obtain the reference height at the corner point The expression:

[0020] ;

[0021] In the formula, The pouring time recorded at each corner point begins when the corner laser rangefinder detects a change in height and ends when the pouring reaches the final liquid level. Number the corner points;

[0022] Step S32, observe the reference height at the observation hole. Regarding time The reference flow velocity is obtained by differentiation. :

[0023] ;

[0024] In the formula, The bottom area of ​​the infusion cavity, It is a differential operator, representing an infinitesimally small change;

[0025] Step S33, based on the reference height at the observation hole Calculate the main control deviation of the injection height at the observation hole :

[0026] ;

[0027] Based on the reference height at the corner point Error correction term for calculating the injection height at the corner of the injection cavity :

[0028] ;

[0029] Assign weights and construct a comprehensive real-time deviation. The calculation formula:

[0030] ;

[0031] In the formula, For summation, where To find the lower limit of the summation, To find the upper limit of the summation; Assign weights to the errors, where ;

[0032] Step S34, based on comprehensive real-time deviation Construct a PID controller and calculate the flow rate correction. :

[0033] ;

[0034] In the formula, To comprehensively consider real-time deviations The integral over time represents the cumulative error during the perfusion process. This is a proportionality coefficient used to improve the system's response speed to deviations. These are integral coefficients used to eliminate steady-state errors. These are the differential coefficients, used to suppress overshoot and improve system stability.

[0035] The flow rate correction is obtained after discretizing the sampling time. The expression:

[0036] ;

[0037] In the formula, for Overall deviation at time, for Overall deviation at time, The time interval between data collection of infusion height;

[0038] Step S35, based on flow rate correction amount Determine the control flow rate for:

[0039] ;

[0040] Step S36, the external control terminal controls the flow rate according to the final control flow rate. Controlling the opening and closing degree of the electrically controlled feeding hopper .

[0041] Preferably, in step S36, the opening and closing degree of the electrically controlled feeding funnel is constructed based on the fluid dynamics orifice outflow model and calibration curve. With control of flow rate and the height of the self-compacting concrete liquid level in the funnel The mapping relationship between them is used to obtain the opening and closing degree of the electronically controlled feeding funnel. The electrically controlled feeding hopper controls the opening and closing degree. .

[0042] Preferably, in step S36, the opening and closing degree of the electrically controlled feeding funnel... The formula for calculation is:

[0043] ;

[0044] In the formula, Indicates the opening and closing degree of the electrically controlled feeding hopper Therefore , A function of the independent variable;

[0045] An empirical polynomial model was used to study the opening and closing degree of the electrically controlled feeding hopper. The calculation formula is approximated to obtain the solution. The opening and closing commands are constantly issued to the actuator of the electrically controlled feeding hopper. :

[0046] ;

[0047] In the formula, for Controlling the flow rate at all times for Real-time liquid level of self-compacting concrete inside the electrically controlled feeding hopper. The initial opening offset coefficient, The first-order flow gain coefficient, These are the second-order nonlinear correction coefficients.

[0048] Preferably, in step S36, the initial opening offset coefficient First-order flow gain coefficient and second-order nonlinear correction coefficients It is matched with the rheological parameters of concrete and the mechanical structure of the funnel valve, and calibrated through on-site pouring tests before construction.

[0049] Preferably, in step S4, when the lateral or vertical displacement of the track plate reaches the specified limit of 2mm, the electrically controlled feeding funnel is closed.

[0050] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0051] This invention employs a multi-sensor and intelligent mobile terminal interaction method. By constructing a target height function and introducing its derivative as a reference flow velocity, feedforward control is achieved. At the same time, combined with a PID feedback correction mechanism, the self-compacting concrete avoids quality defects such as appearance segregation, exposed aggregate, exposed reinforcement, honeycomb voids, depressions, large air bubble agglomeration areas, and foam layers during pouring. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the process of the present invention;

[0053] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0054] The numbers in the diagram represent: 1. Track plate; 2. Base plate; 3. Edge sealing assembly. Detailed Implementation

[0055] The present invention will be further described below with reference to the accompanying drawings and embodiments, which illustrate the above and other technical features and advantages of the present invention. However, the following embodiments are merely preferred embodiments of the present invention and are not exhaustive.

[0056] Example:

[0057] like Figures 1-2 As shown, this invention provides a method for intelligent pouring construction of self-compacting concrete for CRTSⅢ type slab track, comprising the following steps:

[0058] Step S1: Install the edge sealing assembly 3 between the track plate 1 and the base plate 2. Install a set of electrically controlled exhaust assemblies at each of the four corners of the edge sealing assembly 33. The edge sealing assembly 3, the electrically controlled exhaust assemblies, the track plate 1 and the base plate 2 are combined to form an injection cavity. The edge sealing assembly 3 includes two sets of horizontal templates and two sets of vertical templates. The length and width of the horizontal templates and the vertical templates match the length and width of the track plate 1. After the two sets of horizontal templates and the two sets of vertical templates are spliced ​​together, the gap between the track plate 1 and the base plate 2 is sealed. The electrically controlled exhaust assembly is set between the connecting ends of the horizontal templates and the vertical templates. The top of the electrically controlled exhaust assembly has an exhaust hole that vertically connects to the injection cavity.

[0059] Step S2: Set a laser ranging component outside each group of electrically controlled exhaust components. The laser ranging component monitors the height of the track plate 1, the base plate 2 and the self-compacting concrete in the grouting cavity.

[0060] An overflow prevention pipe is installed in each grouting hole and observation hole of the track slab 11. An electrically controlled material feeding funnel is installed at the upper end of the overflow prevention pipe of the grouting hole. A set of central laser rangefinders is installed in the overflow prevention pipe of the observation hole. The laser ranging assembly includes a mounting bracket, two sets of track slab laser rangefinders and a set of corner laser rangefinders mounted on the mounting bracket. The measuring ends of the two sets of track slab laser rangefinders point to the top and side surfaces of the track slab 1, respectively. The corner laser rangefinders point to the exhaust holes of the electrically controlled exhaust assembly. The corner laser rangefinders measure the height of the self-compacting concrete in the grouting cavity at the exhaust holes through the exhaust holes. The laser ranging assembly, the central laser rangefinder, the electrically controlled exhaust assembly, and the electrically controlled material feeding funnel are all electrically connected to an external control terminal. The distance between the top surface of the track slab 1 and the top surface of the base plate 2 is... The distance between the preset termination liquid level position of the overflow prevention pipe and the top surface of the base plate 2 is... The height of the self-compacting concrete measured by the central laser rangefinder through the observation hole is the central pouring height. The height of the self-compacting concrete, measured by the corner laser rangefinder through the exhaust port of the electronically controlled exhaust assembly, is... , Number the corner points;

[0061] Step S3: Self-compacting concrete is injected into the electrically controlled feeding funnel. The self-compacting concrete is injected into the grouting cavity through the electrically controlled feeding funnel and spreads and accumulates around the grouting cavity. The laser ranging component monitors the height data of the self-compacting concrete in real time and uploads the height data to the external control terminal. The external control terminal dynamically controls the grouting rate of the electrically controlled feeding funnel based on the obtained height data.

[0062] The method for dynamically controlling the pouring rate of self-compacting concrete is as follows:

[0063] Step S31: The standard Logistic function is used to describe the functional relationship between the pouring height of self-compacting concrete and time, and the reference height at the observation hole is obtained. expression:

[0064] ;

[0065] In the formula, The estimated time for the grouting operation is 13-15 minutes. To record the pouring time at the observation hole, timing begins when the central laser rangefinder detects a change in height and ends when the pouring reaches the final liquid level. It is a natural constant;

[0066] Obtain the reference height at the corner point The expression:

[0067] ;

[0068] In the formula, The pouring time recorded at each corner point begins when the corner laser rangefinder detects a change in height and ends when the pouring reaches the final liquid level. Number the corner points;

[0069] Step S32, observe the reference height at the observation hole. Regarding time The reference flow velocity is obtained by differentiation. :

[0070] ;

[0071] In the formula, The bottom area of ​​the infusion cavity, It is a differential operator, representing an infinitesimally small change;

[0072] Step S33, based on the reference height at the observation hole Calculate the main control deviation of the injection height at the observation hole :

[0073] ;

[0074] Based on the reference height at the corner point Error correction term for calculating the injection height at the corner of the injection cavity :

[0075] ;

[0076] Assign weights and construct a comprehensive real-time deviation. The calculation formula:

[0077] ;

[0078] In the formula, For summation, where To find the lower limit of the summation, To find the upper limit of the summation; Assign weights to the errors, where ;

[0079] Step S34, based on comprehensive real-time deviation Construct a PID controller and calculate the flow rate correction. :

[0080] ;

[0081] In the formula, To comprehensively consider real-time deviations The integral over time represents the cumulative error during the perfusion process. This is a proportionality coefficient used to improve the system's response speed to deviations. These are integral coefficients used to eliminate steady-state errors. These are the differential coefficients, used to suppress overshoot and improve system stability;

[0082] The flow rate correction is obtained after discretizing the sampling time. The expression:

[0083] ;

[0084] In the formula, for Overall deviation at time, for Overall deviation at time, The time interval between data collection of infusion height;

[0085] Step S35, based on flow rate correction amount Determine the control flow rate for:

[0086] ;

[0087] Step S36, the external control terminal controls the flow rate according to the final control flow rate. Controlling the opening and closing degree of the electrically controlled feeding hopper ;

[0088] In step S36, based on the fluid dynamics orifice outflow model and calibration curve, the opening and closing degree of the electrically controlled feeding funnel is constructed. With control of flow rate and the height of the self-compacting concrete liquid level in the funnel The mapping relationship between them is used to obtain the opening and closing degree of the electronically controlled feeding funnel. ;

[0089] Opening and closing degree of the electrically controlled feeding hopper The formula for calculation is:

[0090] ;

[0091] In the formula, Indicates the opening and closing degree of the electrically controlled feeding hopper Therefore , A function of the independent variable;

[0092] An empirical polynomial model was used to study the opening and closing degree of the electrically controlled feeding hopper. The calculation formula is used to approximate the solution:

[0093] ;

[0094] In the formula, for The opening and closing commands are constantly issued to the actuator of the electrically controlled feeding hopper. for Controlling the flow rate at all times for Real-time liquid level of self-compacting concrete inside the electrically controlled feeding hopper. The initial opening offset coefficient, The first-order flow gain coefficient, These are the second-order nonlinear correction coefficients and the initial opening bias coefficients. First-order flow gain coefficient and second-order nonlinear correction coefficients The rheological parameters of the concrete and the mechanical structure of the funnel valve are matched and calibrated through on-site pouring tests before construction.

[0095] Step S4: When the laser ranging component detects that the self-compacting concrete overflows from the vent of the electrically controlled venting component, the vent of the electrically controlled venting component is closed, and the self-compacting concrete continues to be poured until the liquid level of the self-compacting concrete reaches the preset height in the anti-overflow pipe. The electrically controlled feeding funnel is then closed. When the horizontal or vertical displacement distance of the track plate 1 reaches the specification limit of 2mm, the electrically controlled feeding funnel is closed.

[0096] The above description is merely a preferred embodiment of the present invention and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, all of which will fall within the protection scope of the present invention.

Claims

1. A method for intelligent pouring of self-compacting concrete for CRTSⅢ type slab track, characterized in that, Includes the following steps: Step S1: Install an edge sealing assembly between the track plate and the base plate, and install a set of electrically controlled exhaust assemblies at each of the four corners of the edge sealing assembly. The edge sealing assembly, the electrically controlled exhaust assembly, the track plate and the base plate are combined to form an injection cavity. Step S2: A laser ranging component is installed outside each group of electrically controlled exhaust components. The laser ranging component monitors the height of the track plate, base plate and self-compacting concrete in the grouting cavity. An overflow prevention pipe is installed in each injection hole and observation hole of the track slab. An electrically controlled material feeding funnel is installed at the upper end of the overflow prevention pipe of the injection hole, and a set of central laser rangefinders is installed in the overflow prevention pipe of the observation hole. Step S3: Self-compacting concrete is injected into the electrically controlled feeding funnel. The self-compacting concrete is injected into the grouting cavity through the electrically controlled feeding funnel and spreads and accumulates around the grouting cavity. The laser ranging component monitors the height data of the self-compacting concrete in real time and uploads the height data to the external control terminal. The external control terminal dynamically controls the grouting rate of the electrically controlled feeding funnel based on the obtained height data. Step S4: When the laser ranging component detects that the self-compacting concrete is overflowing from the vent of the electrically controlled venting component, the vent of the electrically controlled venting component is closed, and the self-compacting concrete continues to be poured until the liquid level of the self-compacting concrete reaches the preset height in the anti-overflow pipe, and the electrically controlled discharge funnel is closed.

2. The intelligent pouring construction method for self-compacting concrete of CRTSⅢ type slab track as described in claim 1, characterized in that, In step S1, the sealing assembly includes two sets of horizontal templates and two sets of vertical templates. The length and width of the horizontal and vertical templates match the length and width of the track plate. After the two sets of horizontal templates and two sets of vertical templates are spliced ​​together, the gap between the track plate and the base plate is sealed. The electrically controlled exhaust assembly is set between the connecting ends of the horizontal and vertical templates. The top of the electrically controlled exhaust assembly has an exhaust hole that vertically connects to the injection chamber.

3. The intelligent pouring construction method for self-compacting concrete of CRTSⅢ type slab track as described in claim 1, characterized in that, In step S2, the laser ranging component includes a mounting bracket, two sets of track slab laser rangefinders and one set of corner laser rangefinders mounted on the mounting bracket. The measuring ends of the two sets of track slab laser rangefinders point to the top and side surfaces of the track slabs, respectively. The corner laser rangefinders point to the exhaust port of the electronically controlled exhaust component. The corner laser rangefinders measure the height of the self-compacting concrete in the grouting cavity at the exhaust port through the exhaust port.

4. The intelligent pouring construction method for self-compacting concrete of CRTSⅢ type slab track as described in claim 3, characterized in that, In step S2, the laser ranging component, the central laser rangefinder, the electrically controlled exhaust component, and the electrically controlled feeding hopper are all electrically connected to an external control terminal.

5. The intelligent pouring construction method for self-compacting concrete of CRTSⅢ type slab track as described in claim 4, characterized in that, In step S2, the distance between the top surface of the track plate and the top surface of the base plate is... The distance between the preset termination liquid level position of the overflow prevention pipe and the top surface of the base plate is... The height of the self-compacting concrete measured by the central laser rangefinder through the observation hole is the central pouring height. The height of the self-compacting concrete, measured by the corner laser rangefinder through the exhaust port of the electronically controlled exhaust assembly, is... , Number the corner points.

6. The intelligent pouring construction method for self-compacting concrete of CRTSⅢ type slab track as described in claim 1, characterized in that, In step S3, the method for dynamically controlling the pouring rate of self-compacting concrete is as follows: Step S31: The standard Logistic function is used to describe the functional relationship between the pouring height of self-compacting concrete and time, and the reference height at the observation hole is obtained. expression: ； In the formula, The estimated time for the grouting operation is 13-15 minutes. To record the pouring time at the observation hole, timing begins when the central laser rangefinder detects a change in height and ends when the pouring reaches the final liquid level. It is a natural constant; The standard Logistic function is used to describe the functional relationship between the pouring height of self-compacting concrete and time, and the reference height at the corner is obtained. The expression: ； In the formula, The pouring time recorded at each corner point begins when the corner laser rangefinder detects a change in height and ends when the pouring reaches the final liquid level. Number the corner points; Step S32, observe the reference height at the observation hole. Regarding time The reference flow velocity is obtained by differentiation. : ； In the formula, The bottom area of ​​the infusion cavity, It is a differential operator, representing an infinitesimally small change; Step S33, based on the reference height at the observation hole Calculate the main control deviation of the injection height at the observation hole : ； Based on the reference height at the corner point Error correction term for calculating the injection height at the corner of the injection cavity : ； Assign weights and construct a comprehensive real-time deviation. The calculation formula: ； In the formula, For summation, where To find the lower limit of the summation, To find the upper limit of the summation; Assign weights to the errors, where ; Step S34, based on comprehensive real-time deviation Construct a PID controller and calculate the flow rate correction. : ； In the formula, To comprehensively consider real-time deviations The integral over time represents the cumulative error during the perfusion process. This is a proportionality coefficient used to improve the system's response speed to deviations. These are integral coefficients used to eliminate steady-state errors. These are the differential coefficients, used to suppress overshoot and improve system stability; The flow rate correction is obtained after discretizing the sampling time. The expression: ； In the formula, for Overall deviation at time, for Overall deviation at time, The time interval between data collection of infusion height; Step S35, based on flow rate correction amount Determine the control flow rate for: ； Step S36, the external control terminal determines the final control flow rate. Controlling the opening and closing degree of the electrically controlled feeding hopper .

7. The intelligent pouring construction method for self-compacting concrete of CRTSⅢ type slab track as described in claim 6, characterized in that, In step S36, the opening and closing degree of the electrically controlled feeding funnel is constructed based on the fluid dynamics orifice outflow model and calibration curve. With control of flow rate and the height of the self-compacting concrete liquid level in the funnel The mapping relationship between them is used to obtain the opening and closing degree of the electronically controlled feeding funnel. The electrically controlled feeding hopper controls the opening and closing degree. .

8. The intelligent pouring construction method for self-compacting concrete of CRTSⅢ type slab track as described in claim 7, characterized in that, In step S36, the opening and closing degree of the electrically controlled feeding funnel... The formula for calculation is: ； In the formula, Indicates the opening and closing degree of the electrically controlled feeding hopper Therefore , A function of the independent variable; An empirical polynomial model was used to study the opening and closing degree of the electrically controlled feeding hopper. The calculation formula is approximated to obtain the solution. The opening and closing commands are constantly issued to the actuator of the electrically controlled feeding hopper. : ； In the formula, for Controlling the flow rate at all times for Real-time liquid level of self-compacting concrete inside the electrically controlled feeding hopper. The initial opening offset coefficient, The first-order flow gain coefficient, These are the second-order nonlinear correction coefficients.

9. The intelligent pouring construction method for self-compacting concrete of CRTSⅢ type slab track as described in claim 8, characterized in that, In step S36, the initial opening offset coefficient First-order flow gain coefficient and second-order nonlinear correction coefficients It is matched with the rheological parameters of concrete and the mechanical structure of the funnel valve, and calibrated through on-site pouring tests before construction.

10. The intelligent pouring construction method for self-compacting concrete of CRTSⅢ type slab track as described in claim 1, characterized in that, In step S4, when the horizontal or vertical displacement of the track plate reaches 2mm, the electrically controlled feeding funnel closes.

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