Construction method of anti-corrosion woven cloth three-cloth two-film wrapped cast-in-place pile structure

By constructing a collaborative correlation mechanism for construction parameters and a sensor network, the construction parameters of the encased cast-in-place piles are adjusted in real time, which solves potential quality problems during construction, improves construction quality and corrosion resistance, and adapts to complex geological environments.

CN121629920APending Publication Date: 2026-03-10TONGBAI XIJIN EARTH MATERIAL CO LTD
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Patent Information

Application Number
CN202511872098.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In existing construction methods for cast-in-place piles, the lack of coordination in the control of construction parameters leads to problems such as borehole wall collapse, damage to the casing, and poor adhesion between the concrete and the casing. Furthermore, the lack of real-time quality control makes it difficult to detect and resolve potential quality issues during construction.

Method used

A collaborative correlation mechanism for key parameters in drilling, hoisting of the reinforcing cage, and concrete pouring is established. By combining real-time collection of quality data and dynamic parameters with a sensor network, and by analyzing and adjusting construction parameters in real time, the coordinated matching of each stage is ensured.

Benefits of technology

It enables real-time quality control during construction, avoids borehole wall collapse and body damage, improves the construction quality and corrosion resistance of cast-in-place piles, broadens the application scope, and has self-optimization capabilities to adapt to complex geological environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a construction method of an anti-corrosion woven cloth three-cloth two-film wrapped body cast-in-place pile structure, and relates to the technical field of building construction, the method comprises the following steps: carrying out three-cloth two-film wrapped body wrapping on a reinforcement cage to form a wrapped body reinforcement cage; key parameters of drilling, hoisting and concrete pouring are determined, and a key parameter collaborative association mechanism of all links is constructed; the quality data of the wrapping operation of the wrapping body and the dynamic parameters of each construction link are collected in real time through a sensing network; analyzing the collected data based on a collaborative association mechanism, and adjusting abnormal parameters; and after the quality data of the wrapping operation of the wrapping body and the dynamic parameters of all the construction links meet preset standards, construction of the cast-in-place pile is completed. According to the method, a collaborative association mechanism of key parameters of all construction links is constructed, real-time collection and analysis of quality data and dynamic parameters are achieved in combination with the sensing network, abnormal parameters can be adjusted in time, and the problems that the hole wall collapses, the wrapping body is damaged, and the concrete and the wrapping body are not tightly attached are effectively avoided.
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Description

Technical Field

[0001] This invention relates to the field of building construction technology, and more specifically, to a construction method for a cast-in-place pile structure with a three-layer woven fabric and two-layer film wrapping. Background Technology

[0002] In the field of construction engineering, cast-in-place piles, as an important type of pile foundation, are widely used in various projects such as industrial buildings, bridge engineering, and underground utility tunnels. As construction projects extend to complex geological environments such as saline-alkali land, soft soil foundations, and high water levels, the problem of corrosion from underground corrosive media on cast-in-place piles is becoming increasingly prominent. To improve the corrosion resistance of cast-in-place piles, the industry has gradually adopted a method of wrapping the reinforcing cage with three layers of anti-corrosion woven fabric and two layers of membrane to form a wrapped cast-in-place pile structure. This composite structure of three layers of fabric and two layers of membrane blocks the corrosion of the reinforcing steel and concrete, extending the service life of the pile foundation. However, existing construction methods for wrapped cast-in-place piles still have many shortcomings in practical applications, which restrict the stability of their anti-corrosion effect and construction quality.

[0003] In the existing construction methods for cast-in-place piles, the control of construction parameters lacks coordination: the parameters of key construction links such as drilling, hoisting, and concrete pouring are mostly controlled independently without establishing an effective correlation mechanism. This can easily lead to problems such as borehole wall collapse, damage to the casing, and poor adhesion between the concrete and the casing due to parameter mismatch. Moreover, the construction quality control lacks real-time capability and mostly relies on post-construction inspection to judge the quality. It is impossible to collect real-time data on the casing quality and the dynamic data of each construction link, making it difficult to promptly identify and resolve potential quality problems during the construction process. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a construction method for a three-layer woven fabric and two-layer film-wrapped cast-in-place pile structure to solve the problems mentioned in the background art.

[0005] This application provides a construction method for a corrosion-resistant woven fabric three-layer fabric two-film wrapped cast-in-place pile structure, including: The steel cage is wrapped with three layers of fabric and two layers of membrane to form a wrapped steel cage. Determine the key parameters for each construction stage, including drilling, hoisting of the reinforcing cage, and concrete pouring, and establish a collaborative correlation mechanism for the key parameters of each stage. The quality data of the wrapping operation and the dynamic parameters of each construction stage are collected in real time through the sensor network. The quality data of the wrapping operation includes the wrapping tension and the degree of fit with the steel cage, while the dynamic parameters include the drilling status, hoisting posture and pouring flow rate. Based on the collaborative association mechanism, the collected data is analyzed. When the quality data of the wrapping operation is found to be substandard or the dynamic parameters of the construction process are abnormal, the operation parameters that affect the quality data in the wrapping operation and the equipment operation parameters related to the dynamic parameters in the corresponding construction process are adjusted. The construction of the cast-in-place piles is completed once the quality data of the wrapping operation and the dynamic parameters of each construction stage meet the preset standards.

[0006] In some embodiments of this application, a collaborative correlation mechanism for key parameters at each stage is constructed, including: Establish a matching relationship between key parameters of the drilling process and borehole stability, so that the dynamic parameters of the drilling process can be adjusted in real time according to the geological conditions of the construction area. Key parameters and protection rules for the integrity of the reinforced steel cage are set during the hoisting process, and the changes in friction between the cage and the borehole wall and the tension of the cage are correlated. Construct a matching logic between key parameters in the concrete pouring process and the fit of the coating, and link the contact state between the concrete and the coating and the degree of deformation of the coating.

[0007] In some embodiments of this application, the adaptation relationship between key parameters of the drilling process and borehole wall stability is established, including: Drilling speed and mud performance parameters are used as key parameters in the drilling process. The synergistic ratio of the two is adjusted according to the soil moisture content and density in the construction area so that the mud acts on the borehole wall to form a protective layer.

[0008] In some embodiments of this application, key parameters and protection rules for the integrity of the reinforcing cage are defined during the hoisting process, including: The hoisting speed and hoisting posture are used as key parameters in the hoisting process. The hoisting speed is adjusted based on the friction coefficient of the borehole wall, while the hoisting posture is kept stable. At the same time, the borehole wall lubrication device and the wrapping tension buffer mechanism are activated.

[0009] In some embodiments of this application, the matching logic between key parameters of the concrete pouring process and the fit of the coating is constructed, including: The pouring rate and pouring pressure are used as key parameters in the pouring process. By coordinating the control of the two, the concrete fills the cavity, which relates the contact state between the concrete and the reinforcement cage and the relative position between the reinforcement cage and the reinforcement cage.

[0010] In some embodiments of this application, the sensor network includes: Tension sensors and fit detection devices are deployed in the wrapping operation area to collect real-time data on the wrapping tension and fit with the steel cage. Install condition monitoring sensors on the drilling equipment to collect drilling condition data such as drilling speed and mud density; Equip the hoisting equipment with attitude sensors and speed detection modules to acquire hoisting attitude and speed data; A flow sensor and a pressure sensor are installed at the concrete pouring pipe to collect pouring flow and pressure data simultaneously.

[0011] In some embodiments of this application, adjusting operational parameters that affect quality data during the wrapping operation includes: When the tension of the wrapping exceeds the preset range, adjust the tightening force of the wrapping fixing device; When the fit between the wrapping material and the reinforcing cage is not up to standard, adjust the wrapping sequence and the distribution of fixing points.

[0012] In some embodiments of this application, the method further includes an adjustment step for complex operating conditions: For inclined pile construction scenarios, adjust the hoisting posture and fixing density of the reinforcing cage; For soft soil foundation scenarios, a pilot drilling and borehole wall solidification pretreatment step is added before drilling to optimize key parameters in the drilling process; For high-water-level construction scenarios, the mud slurry wall protection process was strengthened, and key parameters in the concrete pouring process were adjusted.

[0013] In some embodiments of this application, the method further includes steps for predicting and preventing damage to the body wrapping: Based on historical construction data collected by sensor networks, a risk prediction model for body wrapping damage is established, and high-risk damage areas of the body wrapping in the current construction stage are predicted by real-time construction data. A biodegradable protective padding layer is pre-applied to the surface of the wrapping material corresponding to high-risk damage areas, and key parameters of the corresponding construction process are adjusted simultaneously. Once the corresponding construction phase is completed, the protective padding layer will be degraded through a pre-set triggering mechanism.

[0014] In some embodiments of this application, the constructed collaborative association mechanism has self-optimization capabilities: Regularly collect parameter adjustment records, coating quality test results, and corrosion monitoring data of cast-in-place piles during the construction process, and iteratively correct the parameter correlation coefficients in the collaborative correlation mechanism; A differentiated parameter collaboration scheme library is developed for different geological conditions and construction environments, which can be called upon and adjusted according to the actual situation during the construction of similar projects in the future.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By constructing a collaborative correlation mechanism for key parameters in each construction stage, and combining sensor networks to achieve real-time collection and analysis of quality data and dynamic parameters, abnormal parameters can be adjusted in a timely manner, effectively avoiding problems such as borehole wall collapse, wrapping damage, and poor adhesion between concrete and wrapping, ensuring that the entire construction process is under control, and improving the construction quality and corrosion resistance reliability of cast-in-place piles. 2. Targeted parameter adjustment and process optimization schemes are formulated for different complex construction scenarios such as inclined piles, soft soil foundations, and high water levels. At the same time, high-risk damage is avoided in advance through the prediction and prevention of body damage. This effectively solves the problem of poor adaptability of traditional construction methods in complex environments and broadens the application scope of body-wound cast-in-place piles. 3. The collaborative association mechanism has self-optimization capabilities. It can collect construction data and iteratively correct the parameter association coefficients to form a differentiated parameter collaboration scheme library, providing reusable construction basis for subsequent similar projects. This not only improves construction efficiency but also promotes the standardization of the encased pile construction technology. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 The flowchart provided for this invention; Figure 2 Flowchart for constructing the collaborative association mechanism provided by this invention; Figure 3 This is a schematic diagram of sensor network deployment and data transmission provided by the present invention; Figure 4 The construction flowchart provided for this invention. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] The anti-corrosion woven fabric three-layer anti-corrosion membrane two-layer film-wrapped cast-in-place pile is a pile foundation structure formed by wrapping a reinforcing cage with a three-layer anti-corrosion woven fabric two-layer film before pouring concrete. The three-layer anti-corrosion woven fabric is composed of an outer layer of woven fabric, a middle anti-corrosion membrane, and an inner layer of woven fabric, effectively blocking underground corrosive media from eroding the reinforcing steel and concrete of the pile. This application's embodiments are applicable to various pile foundation construction scenarios requiring anti-corrosion, such as industrial buildings, bridge engineering, and underground pipe corridors, and are particularly suitable for cast-in-place pile construction in complex geological environments such as saline-alkali land, soft soil foundations, and high water levels.

[0021] The specific implementation methods of this application are illustrated below through examples: like Figure 1 As shown, a construction method for a corrosion-resistant woven fabric three-layer fabric two-film wrapped cast-in-place pile structure includes: S1: The steel cage is wrapped with three layers of fabric and two layers of membrane to form a wrapped steel cage.

[0022] Specifically, the rebar cage is first processed according to the design specifications, ensuring that the rebar type, spacing, and length meet the requirements of the construction drawings. Three-layer, two-film anti-corrosion woven fabric that meets the preset standards is selected and cut into corresponding rectangular sheets according to the perimeter and length of the rebar cage. The edges of the sheets are then sealed using a heat-sealing process. Starting from one end of the rebar cage, the cut wrapping material is evenly wrapped along the axial direction of the rebar cage and secured with stainless steel cable ties, with the fixing points evenly distributed around the circumference of the rebar cage. During the wrapping process, the wrapping material is manually smoothed to avoid wrinkles or misalignment, ensuring that the wrapping material initially adheres to the rebar cage.

[0023] S2: Determine the key parameters for each construction stage, including drilling, hoisting of the reinforcing cage, and concrete pouring, and establish a collaborative mechanism for the key parameters of each stage.

[0024] Specifically, based on the geological survey report of the construction area, the pile foundation design documents, and the construction specifications, the key parameters for each construction stage are determined: key parameters for the drilling stage include drilling speed and mud performance parameters (including mud density, viscosity, and sand content); key parameters for the hoisting of the reinforced steel cage include hoisting speed and hoisting posture; key parameters for the concrete pouring stage include pouring rate and pouring pressure.

[0025] like Figure 2 As shown, the specific process of constructing a collaborative association mechanism includes: S21: Establish the adaptation relationship between key parameters of the drilling process and borehole stability, so that the dynamic parameters of the drilling process can be adjusted in real time according to the geological conditions of the construction area.

[0026] Specifically, drilling speed and mud performance parameters are considered core parameters in the drilling process, and their synergistic ratio is determined based on the soil moisture content and density of the construction area. For example, in sandy soil areas, when the soil moisture content is low, a lower drilling speed is used with a higher density mud; when the soil moisture content is high, the drilling speed is appropriately increased and the mud viscosity is adjusted so that the mud acts on the borehole wall to form a stable protective layer and prevent borehole wall collapse.

[0027] S22: Set key parameters and protection rules for the integrity of the reinforcing cage during hoisting, and associate them with the friction between the cage and the borehole wall and the changes in the tension of the cage during hoisting.

[0028] Specifically, hoisting speed and hoisting posture are taken as core parameters in the hoisting process. A threshold range for the hole wall friction coefficient is preset, and the hoisting speed is adjusted based on the real-time monitoring of the hole wall friction coefficient. At the same time, the allowable deviation range of the hoisting posture is set, and the hoisting posture is kept stable by the posture control system of the hoisting equipment. The activation conditions of the hole wall lubrication device and the wrapping tension buffer mechanism are linked to the hoisting speed and the hole wall friction coefficient to ensure that the friction intensity between the wrapping and the hole wall and the wrapping tension are within the preset range during the hoisting process.

[0029] S23: Construct the matching logic between key parameters in the concrete pouring process and the fit of the coating, and associate the contact state between the concrete and the coating with the degree of deformation of the coating.

[0030] Specifically, pouring rate and pouring pressure are taken as the core key parameters in the pouring process. Based on the pile diameter, pile length, and physical properties of the coating material, a coordinated control rule for both is determined. By presetting the contact area threshold between concrete and the coating and the allowable range of coating deformation, the correlation between pouring rate, pouring pressure, and the above indicators is established to ensure that the concrete can make full contact with the coating during the filling of the cavity, while avoiding excessive deformation of the coating.

[0031] S3: The quality data of the wrapping operation and the dynamic parameters of each construction stage are collected in real time through the sensor network. The quality data of the wrapping operation includes the wrapping tension and the degree of fit with the rebar cage. The dynamic parameters include the drilling status, hoisting posture and pouring flow rate.

[0032] Specifically, such as Figure 3 As shown, the deployment and data acquisition methods of the sensor network are as follows: Tension sensors and fit detection devices are deployed in the wrapping operation area. Tension sensors are evenly installed on the longitudinal steel bars of the steel cage to collect the tension data of the wrapping in real time. The fit detection device adopts the ultrasonic detection principle and sets a detection point every 30° along the circumference of the steel cage to collect the fit data between the wrapping and the steel cage in real time.

[0033] Condition monitoring sensors, including laser velocity sensors and mud density sensors, are installed on the drilling equipment to collect drilling speed and mud density data, respectively. At the same time, a mud viscometer and a sand content detector are equipped to collect drilling condition data such as mud viscosity and sand content simultaneously.

[0034] An attitude sensor and a speed detection module are configured on the hoisting equipment. The attitude sensor is installed at the connection between the hoisting hook and the steel cage to acquire hoisting attitude data in real time; the speed detection module is connected to the power system of the hoisting equipment to collect hoisting speed data.

[0035] Flow sensors and pressure sensors are installed at the concrete pouring duct. The flow sensors collect concrete pouring flow data, while the pressure sensors are installed at the outlet of the duct to collect pouring pressure data in real time. All sensors are set to acquire data once per second, and the collected data is uploaded to the central control system in real time via a wireless transmission module.

[0036] S4: Analyze the collected data based on the collaborative association mechanism. When the quality data of the wrapping operation is found to be substandard or the dynamic parameters of the construction process are abnormal, adjust the operation parameters that affect the quality data in the wrapping operation and the equipment operation parameters related to the dynamic parameters in the corresponding construction process.

[0037] Specifically, the central control system compares and analyzes the real-time collected data with preset standards in the collaborative linkage mechanism to determine whether the data meets the standards or is abnormal: When the quality data of the wrapping operation is found to be substandard, adjust the operation parameters that affect the quality data in the wrapping operation: If the tension of the wrapping body exceeds the preset range, the tightening force can be adjusted by controlling the motor speed of the wrapping body fixing device. If the fit between the wrapping material and the reinforcing cage is not up to standard, adjust the wrapping sequence and the distribution of fixing points according to the specific location information fed back by the fit detection device, and locally re-wrap the areas with insufficient fit.

[0038] When abnormal dynamic parameters are detected during the construction process, adjust the operating parameters of the equipment related to the dynamic parameters in the corresponding construction process: If the drilling speed exceeds the preset range, adjust the power output of the drilling equipment to regulate it; If the mud performance parameters are abnormal, control the mud preparation equipment and adjust the raw material ratio. If the hoisting speed or posture is abnormal, adjust the operating parameters through the hoisting equipment's control system. If the pouring flow or pressure is abnormal, adjust the output power of the concrete pump and the valve opening of the pouring duct.

[0039] S5: The construction of the cast-in-place pile is completed once the quality data of the wrapping operation and the dynamic parameters of each construction stage meet the preset standards.

[0040] Specifically, the central control system continuously monitors the adjusted quality data and dynamic parameters. When all data meet the preset standards for 30 consecutive seconds, the construction process is deemed qualified and proceeds to the next stage. After completing all construction stages such as drilling, hoisting the reinforcing cage, and pouring concrete, the cast-in-place pile is cured. Once the curing is completed, the entire cast-in-place pile construction process is finished.

[0041] In this embodiment of the application, the adjustment steps for complex working conditions are as follows: For inclined pile construction scenarios, the hoisting posture of the reinforcing cage is adjusted by the attitude adjustment system of the hoisting equipment according to the design inclination angle of the inclined pile, so as to ensure that the inclination angle of the reinforcing cage is consistent with the design angle during hoisting; at the same time, the fixing density of stainless steel cable ties is increased and the distance between fixing points is reduced to prevent the cage from shifting due to gravity.

[0042] For soft soil foundation scenarios, a pilot drilling and borehole wall solidification pretreatment step is added before drilling: a pilot drilling is carried out using a drill bit with a diameter of 1 / 2 of the designed pile diameter. After the drilling is completed, solidification mud is injected into the hole. After the solidification mud reaches the preset strength, a drill bit with the designed pile diameter is used to complete the final drilling. At the same time, the key parameters of the drilling process are optimized, the drilling speed is appropriately reduced and the mud density is increased to ensure the stability of the borehole wall.

[0043] For high-water-level construction scenarios, the mud slurry wall protection process is strengthened by increasing the clay content of the mud slurry to improve its wall protection performance; key parameters in the concrete pouring process are adjusted, the pouring rate is appropriately reduced and the pouring pressure is increased, and an anti-segregation device is added at the outlet of the pouring pipe to prevent water from affecting the bonding quality between the coating and the concrete.

[0044] In this embodiment of the application, the method further includes steps for predicting and preventing damage to the wrapping: Based on historical construction data collected by sensor networks, including the damage of the coating under different geological conditions and construction parameters, a coating damage risk prediction model is established using machine learning algorithms. The input parameters of the model include drilling speed, hoisting speed, pouring pressure, and coating tension from real-time construction data, and the output parameters are the high-risk damage areas of the coating in the current construction stage.

[0045] After identifying high-risk damage areas in the protective coating, a biodegradable protective padding layer is pre-applied to the surface of the coating corresponding to these areas. The protective padding layer is made of polylactic acid, and its thickness is determined based on the estimated damage level of the high-risk damage area. At the same time, based on the output results of the prediction model, the key parameters of the corresponding construction steps are adjusted to reduce the risk of damage.

[0046] After the corresponding construction phase is completed, the protective cushion layer is degraded through a preset triggering mechanism: for construction scenarios with low groundwater levels, a microbial degradation triggering mechanism is used to allow the protective cushion layer to degrade naturally using microorganisms in the soil; for construction scenarios with high groundwater levels, a hydrolysis degradation triggering mechanism is used to allow the protective cushion layer to degrade within a preset time through water immersion.

[0047] In this embodiment of the application, the constructed collaborative association mechanism has self-optimization capabilities: Regularly collect parameter adjustment records, coating quality test results, and corrosion monitoring data of the cast-in-place piles during the construction process. Set the data collection cycle to be a centralized collection after the completion of 10 cast-in-place piles. Input the collected data into the parameter optimization algorithm to iteratively correct the parameter correlation coefficients in the collaborative correlation mechanism. The corrected parameter correlation coefficients are updated to the central control system in real time.

[0048] For different geological conditions (such as sandy soil, clay soil, soft soil, etc.) and construction environments (such as normal temperature environment, high temperature environment, high humidity environment, etc.), the modified collaborative correlation mechanism parameters are classified and stored to form a differentiated parameter collaboration scheme library. During the construction of similar projects in the future, the corresponding parameter collaboration scheme is called from the scheme library according to the geological conditions and construction environment of the project, and adjustments are made according to the actual construction data to ensure the stability of the construction process.

[0049] like Figure 4 As shown in the embodiments of this application, a complete construction process is also provided, including: P1: Construction preparation stage, including processing of steel cages, cutting and sealing of three-layer anti-corrosion woven fabric, deployment of sensor network, and debugging of central control system.

[0050] P2: The steel cage is wrapped with three layers of fabric and two layers of membrane to form a wrapped steel cage. At the same time, the quality data of the wrapping operation is collected through a sensor network to ensure that the data meets the preset standards.

[0051] P3: Determine the key parameters for each construction stage, establish a collaborative mechanism, and input the mechanism parameters into the central control system.

[0052] P4: Drilling is carried out, and drilling status data is collected in real time through a sensor network. The central control system dynamically adjusts the operating parameters of the drilling equipment based on a collaborative correlation mechanism.

[0053] P5: Carry out the hoisting construction of the reinforced steel cage, and simultaneously collect dynamic parameters such as hoisting posture and hoisting speed. Adjust the hoisting parameters according to the friction coefficient of the borehole wall and the tension of the reinforced steel cage, and start the borehole wall lubrication device and the tension buffer mechanism of the reinforced steel cage.

[0054] P6: Concrete pouring construction is carried out, and pouring flow rate and pouring pressure data are collected in real time. The parameters of the pouring equipment are adjusted through a collaborative correlation mechanism to ensure that the contact state between the concrete and the coating and the deformation of the coating meet the requirements.

[0055] P7: During construction, the steps of predicting and preventing damage to the protective layer are carried out simultaneously. Construction parameters are adjusted according to the prediction model and a protective padding layer is laid.

[0056] P8: After construction is completed, collect construction data regularly, optimize the collaborative linkage mechanism, and update the parameter collaboration scheme library.

[0057] Through the above specific implementation methods, standardized construction of anti-corrosion woven fabric three-layer cloth two-film wrapped cast-in-place pile structures can be realized. By combining sensor networks and collaborative correlation mechanisms, the parameters of each construction link are matched collaboratively. At the same time, through the protection of wrapping damage and the self-optimization design of the mechanism, the stability and replicability of construction quality are further improved, providing reliable technical support for cast-in-place pile construction in complex geological environments.

[0058] In conclusion, the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction method of a corrosion-proof woven fabric three cloth and two film wrapped body cast-in-place pile structure, characterized in that, The method comprises the following steps: The steel reinforcement cage is wrapped by three cloth and two film wrappings to form a wrapped steel reinforcement cage; Key parameters of drilling, hoisting of the wrapped steel reinforcement cage and concrete pouring are determined, and a cooperative correlation mechanism of the key parameters is constructed; Quality data of the wrapping operation and dynamic parameters of each construction link are collected in real time through a sensor network, the quality data of the wrapping operation including wrapping tension and adhesion to the steel reinforcement cage, and the dynamic parameters including drilling state, hoisting posture and pouring flow rate; Based on the cooperative correlation mechanism, the collected data are analyzed, and when it is detected that the quality data of the wrapping operation are substandard or the dynamic parameters of the construction link are abnormal, operation parameters affecting the quality data in the wrapping operation and equipment operation parameters related to the dynamic parameters in the corresponding construction link are adjusted; Until the quality data of the wrapping operation and the dynamic parameters of each construction link meet preset standards, the bored pile construction is completed.

2. The construction method of the anticorrosion woven fabric three cloth and two film wrapped body cast-in-place pile structure according to claim 1, characterized in that, The cooperative correlation mechanism of the key parameters of each link comprises: An adaptive relationship between key parameters of the drilling link and hole wall stability is established, so that the dynamic parameters of the drilling link are adjusted in real time according to the geological conditions of the construction area; A protection rule between key parameters of the hoisting link of the wrapped steel reinforcement cage and the integrity of the wrapping is set, and the changes of the wrapping tension and the friction between the wrapping and the hole wall in the hoisting process are correlated; A matching logic between key parameters of the concrete pouring link and the adhesion of the wrapping is constructed, and the contact state between the concrete and the wrapping and the degree of deformation of the wrapping are correlated.

3. The construction method of the anticorrosion woven fabric three cloth and two film wrapped body cast-in-place pile structure according to claim 2, characterized in that, The adaptive relationship between the key parameters of the drilling link and the hole wall stability comprises: The drilling speed and mud performance parameters are taken as the key parameters of the drilling link, and the cooperative ratio of the two is adjusted according to the water content and density of the soil of the construction area, so that the mud acts on the hole wall to form a protective layer.

4. The construction method of the anticorrosion woven fabric three cloth and two film wrapped body cast-in-place pile structure according to claim 2, characterized in that, The protection rule between the key parameters of the hoisting link of the wrapped steel reinforcement cage and the integrity of the wrapping comprises: The hoisting speed and hoisting posture are taken as the key parameters of the hoisting link, the hoisting speed is adjusted based on the friction coefficient of the hole wall, the hoisting posture is controlled to be stable, and the hole wall lubricating device and the wrapping tension buffer mechanism are started synchronously.

5. The construction method of the anticorrosion woven fabric three cloth and two film wrapped body cast-in-place pile structure according to claim 2, characterized in that, The matching logic between the key parameters of the concrete pouring link and the adhesion of the wrapping comprises: The pouring rate and pouring pressure are taken as the key parameters of the pouring link, and the concrete fills the hole cavity through the cooperative regulation of the two, and the contact state between the concrete and the wrapping and the relative position between the wrapping and the steel reinforcement cage are correlated.

6. The construction method of a corrosion-proof woven fabric three cloth and two film wrapped body cast-in-place pile structure according to claim 1, characterized in that, The sensor network comprises: A tension sensor and an adhesion detection device are arranged in the wrapping operation area to collect the wrapping tension and adhesion data in real time; A state monitoring sensor is installed on the drilling equipment to collect drilling state data such as drilling speed and mud density; A posture sensor and a speed detection module are configured on the hoisting equipment to obtain hoisting posture and hoisting speed data; A flow rate sensor and a pressure sensor are arranged at the concrete pouring conduit to synchronously collect pouring flow rate and pouring pressure data.

7. The construction method of a corrosion-proof woven fabric three cloth and two film wrapped body cast-in-place pile structure according to claim 1, characterized in that, The adjustment of the operation parameters affecting the quality data in the wrapping operation comprises: When the wrapping tension exceeds a preset range, the tightening degree of the wrapping fixing device is adjusted; When the adhesion of the wrapping to the steel reinforcement cage is substandard, the wrapping sequence and the distribution of the fixing points are adjusted.

8. The construction method of a corrosion-proof woven fabric three cloth and two film wrapped body cast-in-place pile structure according to claim 1, characterized in that, The method further comprises an adjustment step of complex working conditions: For the inclined pile construction scene, the lifting posture of the wrapped body reinforcement cage and the fixed density of the wrapped body are adjusted; For the soft soil foundation scene, a pilot drilling and hole wall solidification pretreatment step is added before drilling to optimize the key parameters of the drilling link; For the high water level construction scene, the mud wall protection process is strengthened, and the key parameters of the concrete pouring link are adjusted.

9. The construction method of a corrosion-proof woven fabric three cloth and two film wrapped body cast-in-place pile structure according to claim 1, characterized in that, The method further comprises a pre-judgment and prevention step of wrapped body damage: Based on the historical construction data collected by the sensor network, a wrapped body damage risk prediction model is established to predict the high-risk damage area of the wrapped body in the current construction stage through real-time construction data; A degradable protective pad is laid on the surface of the wrapped body corresponding to the high-risk damage area, and the key parameters of the corresponding construction link are adjusted synchronously; After the completion of the corresponding construction link, the protective pad is degraded through the preset trigger mechanism.

10. The construction method of a corrosion-proof woven fabric three cloth and two film wrapped body cast-in-place pile structure according to claim 1, characterized in that, The constructed synergistic correlation mechanism has self-optimization capability: The parameter adjustment records in the construction process, the wrapped body quality test results and the corrosion monitoring data of the post-use bored pile are collected regularly, and the parameter correlation coefficients in the synergistic correlation mechanism are iteratively corrected; A differentiated parameter synergy scheme library is formed for different geological conditions and construction environments, which can be called and adjusted according to the actual situation in subsequent similar engineering construction.