Composite grouting reinforcement construction process for underwater foundation

Abstract

The invention relates to the field of underwater foundation reinforcement, and particularly discloses a composite grouting reinforcement construction process for an underwater foundation, which comprises three stages of investigation and scheme dynamic design, layered composite grouting construction and control, and effect verification and real-time compensation, and is characterized in that a dynamic blueprint is generated by quantifying disease indexes, iterative grouting is carried out by utilizing real-time feedback, and the real-time compensation is realized. And accurate compensation is implemented based on an instant verification result, and an intelligent closed loop integrating investigation, construction and verification is constructed. According to the method, through deep fusion of quantitative intelligent investigation, dynamic iteration construction and instant closed-loop verification, fundamental transformation from experience driving to data driving, from mechanical execution to intelligent self-adaption and from post-event acceptance to whole-process quality active control is achieved, the precision, efficiency and reliability of underwater foundation reinforcement are improved, and the method is suitable for being popularized and applied. The technical problems of extensive investigation, rigid construction and delayed quality assurance in a traditional method are effectively solved.

Description

Technical Field

[0001] This invention belongs to the field of underwater foundation reinforcement, specifically a composite grouting reinforcement construction process for underwater foundations. Background Technology

[0002] Underwater foundation grouting reinforcement is a key engineering technology for repairing and enhancing the bearing capacity and seepage prevention performance of hydraulic structures such as port terminals, cross-sea bridges, and offshore platforms. Its basic principle is to inject grout materials (such as cement grout, chemical grout, etc.) with cementing, filling, or compacting effects into the pores, fissures, or specific weak layers of the foundation soil through drilling. After the grout solidifies, it forms a composite foundation with higher strength and lower permeability together with the soil, thereby achieving engineering objectives such as improving foundation bearing capacity, controlling settlement, and blocking seepage. The effectiveness of this technology highly depends on the accurate identification of hidden defects within the foundation (such as loose soil areas, seepage channels, cavities, etc.), the matching grouting scheme design, and the dynamic adaptability of the construction process to complex geological conditions.

[0003] A prominent deficiency in current technological practices lies in the disconnect between the four stages of investigation, design, construction, and quality verification, lacking closed-loop linkage and intelligent decision-making based on data flow. Specifically, while current investigation methods (such as borehole sampling and conventional geophysical exploration) can provide qualitative or semi-quantitative information on foundation conditions, they struggle to generate quantitative disease index maps that are continuously distributed in three-dimensional space and can be used to directly guide refined construction. This leads to grouting scheme designs often being based on experience or limited point data, failing to achieve precise grout preparation and parameter settings tailored to each site. During the construction phase, the grouting process is mostly executed mechanically according to preset fixed parameters, lacking the ability to analyze and adjust real-time conditions such as grouting pressure, flow rate, and grout diffusion online. When actual geological conditions do not match expectations, grout waste, reinforcement blind spots, or excessive disturbance can easily occur. More critically, project quality verification is usually performed as a separate post-construction process, only after the grout has completely solidified. If the reinforcement effect is found to be unsatisfactory at this point, remedial measures are not only technically difficult and costly but may also delay the overall project schedule. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a composite grouting reinforcement construction process for underwater foundations, thereby solving the problems of low reinforcement accuracy, poor adaptability, and insufficient overall reliability caused by the extensive survey and design, rigid mechanical construction process, and delayed quality verification that is disconnected from construction in the existing technology.

[0005] A composite grouting reinforcement construction process for underwater foundations includes the following steps performed sequentially:

[0006] S1. Dynamic design of exploration and grouting scheme:

[0007] Geophysical data of underwater foundations are collected, quantitative disease indicators of each exploration unit are calculated, a quantitative distribution map of foundation diseases is generated based on the indicators, and areas of different reinforcement levels are divided according to the distribution map to generate dynamic grouting construction blueprints.

[0008] S2. Layered composite grouting construction and control:

[0009] Based on the construction blueprint, iterative grouting construction is carried out using equipment equipped with a real-time monitoring system. Specifically, it includes the first round of skeleton construction grouting, and at least one round of optimized filling grouting after determining the deviation of working conditions based on real-time monitoring data and preset formulas, and dynamically adjusting subsequent construction parameters according to the determination results.

[0010] S3. Effect Verification and Real-time Compensation:

[0011] After the grout has initially solidified, the strength and seepage prevention effect of the reinforced area are verified. The verification results are compared with the preset reinforcement target and weak units are identified. Then, compensation grouting is started on the weak units until all verification indicators meet the standards.

[0012] Preferably, step S1 specifically includes:

[0013] S1.1 Data Collection and Indicator Calculation:

[0014] Initial three-dimensional geophysical data of the foundation were collected using acoustic wave, resistivity and seepage monitoring equipment, and the exploration area was discretized into multiple exploration units; for each exploration unit, its foundation looseness index and seepage channel activity index were calculated; the index values ​​of all units were summarized to generate a three-dimensional quantitative distribution map of foundation defects.

[0015] S1.2 Dynamic Blueprint Generation:

[0016] The system presets a looseness threshold and an activity threshold; it then iterates through the quantitative distribution map of the defects and determines each exploration unit: if its looseness index is higher than the looseness threshold, it is marked as a primary reinforcement zone and assigned the first set of grouting parameters; if its activity index is higher than the activity threshold, it is marked as a seepage prevention priority zone and assigned the second set of grouting parameters; it integrates the markings and parameters of all areas to generate a dynamic grouting construction blueprint that includes spatial location, reinforcement level, grout mix ratio, grouting pressure, and sequence.

[0017] Preferably, the formula for calculating the foundation looseness index is:

[0018]

[0019] in, As an index of looseness, The normalized sound wave velocity value. This is the normalized resistivity value. and Weighting coefficients are set based on soil properties.

[0020] Preferably, the specific process of the iterative grouting construction in step S2 is as follows:

[0021] S2.1, First-round skeleton construction grouting:

[0022] According to the construction blueprint, the first round of grouting was carried out on the areas marked as critical defects, while the actual pressure and flow data of each grouting unit were monitored and recorded in real time.

[0023] S2.2, Determination and Dynamic Adjustment of Operating Condition Deviation:

[0024] For each grouting unit, when its cumulative grouting volume reaches a preset ratio, its pressure-flow rate deviation coefficient is calculated. :

[0025]

[0026] in, and This represents the actual average pressure and flow rate of the unit. and Design pressure and flow for the blueprint. and These are the weighting coefficients;

[0027] Set deviation coefficient threshold ,according to Values ​​are determined and adjusted:

[0028] like And satisfy If a void or crack is detected, the enhanced filling plan is triggered, and the grout mix ratio is automatically adjusted and the grouting volume is increased.

[0029] like If the deviation is too large, it is determined to be a moderate deviation, and the grouting parameters of the subsequent adjacent units are fine-tuned.

[0030] S2.3 Optimized grouting:

[0031] Based on the judgment and adjustment results of step S2.2, update the construction blueprint and perform at least one round of grouting according to the updated blueprint, focusing on the areas that deviate from the judgment area and the areas where the first round of diffusion did not meet the standard.

[0032] Preferably, the specific operation of triggering the enhanced filling plan is as follows: immediately reduce the water-cement ratio setting of the current slurry. The design grouting volume for this unit and its adjacent units was increased. Its instruction formula is:

[0033]

[0034] Preferably, the specific process of effect verification and real-time compensation in step S3 is as follows:

[0035] S3.1, Verification of reinforcement effect:

[0036] After the final grouting is completed, a pre-set time is used to scan and generate a wave velocity increase rate distribution map after reinforcement using the cross-hole CT method, and the permeability coefficient is measured by water pressure test.

[0037] S3.2 Weak Element Identification and Compensation:

[0038] Set a threshold for the strength improvement rate With permeability coefficient qualified threshold The verification results are compared with the preset reinforcement targets, and the system automatically identifies areas where the wave velocity increase rate is lower than the target value. or permeability coefficient higher The elements that are weak are marked as weak elements;

[0039] S3.3 Real-time compensation grouting:

[0040] For all identified weak units, the iterative grouting logic is invoked to perform precise local reinforcement; after reinforcement is completed, a review and verification is performed until all regional indicators meet the standards.

[0041] Preferably, steps S2 and S3 form a closed loop, and the construction logic, judgment and adjustment method of the compensation grouting initiated in step S3 are the same as those of the iterative grouting construction described in step S2.

[0042] A composite grouting reinforcement construction system for underwater foundations, used to implement the above-mentioned construction process, includes:

[0043] The intelligent survey and scheme design module is used to perform data collection, quantitative index calculation, disease distribution map generation, and dynamic construction blueprint development.

[0044] The dynamic grouting construction control module is used to execute iterative grouting construction, including real-time data acquisition, working condition deviation judgment, dynamic parameter adjustment and equipment control;

[0045] The effect verification and compensation management module is used to perform reinforcement effect verification, weak unit identification, and compensation grouting command issuance.

[0046] The central control system connects and coordinates the control of the above modules, enabling full-process data interaction and automated management.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] By establishing two core quantitative parameters—the "foundation looseness index" and the "seepage channel activity index"—the exploration phase is freed from excessive reliance on engineering experience, transforming vague geological perceptions into precise and visualized three-dimensional disease distribution maps. This not only provides an objective and reliable data foundation for subsequent construction but also makes it possible to dynamically generate differentiated and refined grouting construction blueprints, fundamentally solving the problems of weak targeting and rough design in traditional schemes.

[0049] By introducing a real-time judgment and dynamic adjustment mechanism based on the pressure-flow comprehensive deviation coefficient, the construction process is transformed from a passively executed mechanized process into an adaptive system that can actively sense geological responses, make intelligent decisions, and optimize in real time. During construction, the system can automatically identify geological anomalies (such as cavities and fissures) based on real-time feedback and trigger corresponding parameter adjustment plans, realizing a leap from "fixed scheme construction" to a closed loop of "dynamic perception-decision-execution". This makes the entire construction process robust and adaptable in the face of complex and changeable underwater geological conditions, and improves the utilization rate of grout and the uniformity of reinforcement effect. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the method flow of the present invention;

[0051] Figure 2 This is a system framework diagram of the present invention. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0053] like Figure 1 As shown:

[0054] Example 1: This invention provides a composite grouting reinforcement construction process for underwater foundations, comprising the following steps performed sequentially:

[0055] S1. Dynamic design of exploration and grouting scheme.

[0056] S1.1 Data collection and indicator calculation.

[0057] Using shipborne multibeam sonar, an underwater high-density resistivity detection system, and an array of piezometers and current meters deployed in boreholes, a three-dimensional geophysical dataset of the area to be reinforced was acquired. ,in For planar coordinates, These are depth coordinates.

[0058] The exploration area is divided into horizontal sections. The grid is divided into several sections along the depth direction by equal spacing or stratigraphic boundaries. Layers, thus forming Three-dimensional survey unit .

[0059] For each unit :

[0060] Calculate the foundation looseness index This index comprehensively reflects the soil compaction level. It is based on the average longitudinal wave velocity of acoustic waves within the unit. and average resistivity First, normalization is performed to obtain and The calculation formula is:

[0061]

[0062] in, and These are weighting coefficients, set by engineers based on the regional soil type (e.g., sandy soil, clay), and ; , and This represents the maximum value within the survey area. The higher the value, the looser the soil.

[0063] Calculate the activity index of seepage channels This indicator reflects the intensity of groundwater seepage. It is based on the pore water pressure gradient within the unit. and seepage velocity The calculation formula can be simplified to:

[0064]

[0065] in, and This represents the maximum observed value within the region. The larger the value, the more active the seepage.

[0066] Summarize all units and The data is used to generate a three-dimensional quantitative distribution map of foundation defects. This map uses different colors or values ​​to visually display the type and severity of defects in each unit.

[0067] S1.2 Dynamic Blueprint Generation.

[0068] Preset disease assessment threshold: Looseness threshold and activity threshold .

[0069] Traversing each unit in the quantitative distribution map of diseases :

[0070] like The unit is then designated as a "Structural Reinforcement Zone (SRZ)". Construction parameters are assigned to this type of unit: grout type is high-strength, early-setting cement-based grout (such as ultrafine cement grout), and grouting pressure is... (Higher pressure, such as 0.8-1.2 MPa), the grouting mode is high-pressure pulsed grouting.

[0071] like If so, mark the unit as a "Preferred Seepage Control Zone (SCZ)". Assign construction parameters to this type of unit: grout type is chemically expanding plugging grout (such as water glass-cement two-component grout), and grouting pressure is... (Lower pressure, such as 0.3-0.6 MPa), the grouting mode is low-pressure slow seepage and segmented intermittent grouting.

[0072] If a certain unit simultaneously satisfies and If seepage control is prioritized, it is marked as SCZ, or a composite grouting process is adopted (first injecting anti-seepage grout to form a curtain, then injecting reinforcing grout).

[0073] Finally, the marking information of all areas is integrated with the corresponding grout mix ratio, grouting pressure, and design flow rate. Information such as the grouting sequence (e.g., first constructing the SCZ area to form a water-stop curtain, then constructing the internal SRZ area) is used to generate a dynamic grouting construction blueprint that can guide automated construction. .

[0074] S2. Layered composite grouting construction and control.

[0075] S2.1, First round of grouting for skeleton construction.

[0076] The intelligent grouting vessel / platform is in place, and its grouting pipe is equipped with a real-time pressure sensor, an electromagnetic flow meter, and a grout diffusion radius estimation module based on microseismic or resistivity tomography.

[0077] Strictly follow the blueprint The robotic arm positions the grouting pipe to the first designed borehole (usually starting from the SCZ area). The grouting pump is then started at the pressure specified in the blueprint. and traffic Grouting is performed. The system collects and records the actual pressure of the grouting unit in real time. and traffic Until the designed grouting volume of the unit is reached. 70% (this percentage is adjustable to obtain sufficient feedback data).

[0078] S2.2 Determination and dynamic adjustment of operating conditions.

[0079] When a certain unit The cumulative grouting volume reached At that time, the system automatically invokes the judgment algorithm:

[0080] Calculate the combined pressure-flow deviation factor :

[0081]

[0082] in, and The average actual pressure and flow rate during the grouting process of this unit (when 70% of the design volume is reached). and Weighting coefficients ( For areas where filling large voids is the primary task, a design can be established. Slightly larger For areas where dense crowding is the primary feature, then Slightly large.

[0083] Set threshold and determine: Set deviation coefficient threshold (e.g., 0.25).

[0084] Scenario 1 (Deviation): If And simultaneously satisfy and If this is detected, the unit is determined to have voids or large cracks. The system automatically triggers the reinforcement and filling plan.

[0085] Adjustment procedure: Immediately reduce the water-cement ratio of the grout being injected via the control system. (For example, adjust from 1.0 to 0.7), and increase the remaining grouting volume of the unit and the design grouting volume of the two adjacent unconstructed units through the instruction formula. (For example, 30%)

[0086]

[0087] Scenario 2 (Moderate Deviation): If If so, it is determined that the geological conditions differ moderately from the expectations.

[0088] Adjustment Operation: After the grouting of this unit is completed, the system automatically adjusts the design grouting pressure of its adjacent un-constructed units. Fine-tuning (For example, adjusting upwards or downwards by 0.1 MPa), the specific direction depends on... and The sign of the difference determines whether it is positive or negative.

[0089] Scenario 3 (Normal Match): If If the construction conditions are highly consistent with the blueprint, the subsequent units will be executed according to the original parameters.

[0090] S2.3 Optimize filling and grouting.

[0091] After the first round of grouting and real-time adjustments are completed, the system summarizes the feedback data from all units. Value, final diffusion radius (etc.), automatically update construction blueprints, and generate optimized blueprints. .

[0092] in accordance with The second round of grouting will be carried out. This round will focus on:

[0093] The areas where the units identified as Case 1 (deviation) in the first round are located are reinforced with encryption.

[0094] Based on the first round of slurry diffusion monitoring Determine areas where the slurry has not effectively covered or overlapped.

[0095] Secondary disease areas that were not treated in the first round due to the construction sequence.

[0096] This process can continue with the third and fourth rounds of grouting until the iterative stopping condition is met: the real-time inversion intensity prediction value of all monitoring units. (Based on grouting pressure-flow rate curves and diffusion model calculations) Achieve the target strength outlined in the blueprint. And in the latest round, all units This indicates that the construction is highly stable.

[0097] S3, Effect Verification and Real-time Compensation.

[0098] S3.1 Verification of reinforcement effect.

[0099] The non-destructive effect is verified 24 hours after the end of the final grouting (which can be adjusted according to the grout setting time).

[0100] Strength / uniformity verification: Rearrange the trans-hole acoustic CT or surface wave detector array in the reinforced area, and scan to generate a post-reinforcement wave velocity distribution map. Calculate the wave velocity boost rate for each unit. ,in To reinforce the front wave velocity.

[0101] Integrity / leakage resistance verification: Conduct pressure water tests or pumping tests at key locations within and along the boundaries of the reinforced area to measure its permeability coefficient. .

[0102] S3.2 Identification and compensation of weak units.

[0103] Set a passing threshold: Passing threshold for strength improvement rate (e.g., 15%) and permeability threshold .

[0104] Verification results ( Distribution map (value) and the reinforcement target map set in phase S1 (i.e., the expected value) and Compare the distributions.

[0105] The system automatically identifies all non-compliant units, i.e., meets the requirements. or The weak units are marked as weak units and highlighted in the geological model.

[0106] S3.3 Real-time compensation grouting.

[0107] For each identified cluster of weak units, the system immediately initiates a compensation grouting procedure. This procedure is essentially a localized and refined application of the iterative grouting logic of the S2 stage:

[0108] Generate a local, high-precision compensation grouting blueprint for the weak element.

[0109] Intelligent grouting equipment is used to precisely drill holes and lay pipes at weak points.

[0110] Perform grouting and fully reuse the working condition deviation judgment and dynamic adjustment mechanism in S2.2. Formulas, thresholds, and adjustment plans are used to carry out compensation construction.

[0111] The amount of grouting used for compensation is usually small. After completion, the grouting is left to stand for a short time (e.g., 6-12 hours) and then a rapid verification is performed (e.g., targeted single-hole acoustic testing or point pressure water testing).

[0112] If the verification still fails to meet the standards, repeat this step until the verification indicators for the weak unit meet the standards.

[0113] After all weak units have been treated, a final rapid scan of the entire reinforced area is conducted to confirm that 100% of the design requirements are met, thus forming a complete closed loop from design to construction to verification and compensation.

[0114] Example 2: Composite Grouting Reinforcement Construction System for Underwater Foundations

[0115] A second embodiment of the present invention provides a system for implementing the above-described process, such as... Figure 2 As shown, it includes:

[0116] Intelligent exploration and scheme design module: integrates geophysical data interface and indicators ( , The computing engine, 3D visualization, and blueprint generation algorithms are used to execute all the functions of S1.

[0117] Dynamic grouting construction control module: This is the core execution unit, including a real-time data acquisition subsystem and a working condition deviation coefficient (…). The calculator and judge, the parameter dynamic adjuster, and the drive controller for equipment such as grouting pumps and robotic arms are used to execute all functions of S2.

[0118] Effect verification and compensation management module: integrates verification data (CT, water pressure test) processing, weak unit automatic identification algorithm, and compensation grouting command generation and issuance interface, and is used to execute all S3 functions.

[0119] Central control system: As the brain of the system, it connects and coordinates the above three modules, and is responsible for the whole process task scheduling, data bus communication, human-machine interface display and safety monitoring, so as to realize the full-process automation and intelligent management of surveying, design, construction, verification and compensation.

[0120] Each module works collaboratively under the scheduling of the central control system to ensure smooth operation of the closed-loop process.

[0121] The embodiments of the present invention are given for the purposes of illustration and description. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made by those skilled in the art to the above embodiments within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite grouting reinforcement construction process for underwater foundations, characterized in that, This includes the following steps performed sequentially: S1. Dynamic design of exploration and grouting scheme: Geophysical data of underwater foundations are collected, quantitative disease indicators of each exploration unit are calculated, a quantitative distribution map of foundation diseases is generated based on the indicators, and areas of different reinforcement levels are divided according to the distribution map to generate dynamic grouting construction blueprints. S2. Layered composite grouting construction and control: Based on the construction blueprint, iterative grouting construction is carried out using equipment equipped with a real-time monitoring system. Specifically, it includes the first round of skeleton construction grouting, and at least one round of optimized filling grouting after determining the deviation of working conditions based on real-time monitoring data and preset formulas, and dynamically adjusting subsequent construction parameters according to the determination results. S3. Effect Verification and Real-time Compensation: After the grout has initially solidified, the strength and seepage prevention effect of the reinforced area are verified. The verification results are compared with the preset reinforcement target and weak units are identified. Then, compensation grouting is started on the weak units until all verification indicators meet the standards.

2. The composite grouting reinforcement construction process for underwater foundations according to claim 1, characterized in that, Step S1 specifically includes: S1.1 Data Collection and Indicator Calculation: Initial three-dimensional geophysical data of the foundation were collected using acoustic wave, resistivity and seepage monitoring equipment, and the exploration area was discretized into multiple exploration units; for each exploration unit, its foundation looseness index and seepage channel activity index were calculated; the index values ​​of all units were summarized to generate a three-dimensional quantitative distribution map of foundation defects. S1.2 Dynamic Blueprint Generation: The system presets a looseness threshold and an activity threshold; it then iterates through the quantitative distribution map of the defects and determines each exploration unit: if its looseness index is higher than the looseness threshold, it is marked as a primary reinforcement zone and assigned the first set of grouting parameters; if its activity index is higher than the activity threshold, it is marked as a seepage prevention priority zone and assigned the second set of grouting parameters; it integrates the markings and parameters of all areas to generate a dynamic grouting construction blueprint that includes spatial location, reinforcement level, grout mix ratio, grouting pressure, and sequence.

3. The composite grouting reinforcement construction process for underwater foundations according to claim 2, characterized in that, The formula for calculating the foundation looseness index is as follows: ； in, As an index of looseness, The normalized sound wave velocity value. This is the normalized resistivity value. and These are weighting coefficients set based on soil properties.

4. The composite grouting reinforcement construction process for underwater foundations according to claim 1, characterized in that, The specific process of iterative grouting construction described in step S2 is as follows: S2.1, First-round skeleton construction grouting: According to the construction blueprint, the first round of grouting was carried out on the areas marked as critical defects, while the actual pressure and flow data of each grouting unit were monitored and recorded in real time. S2.2, Determination and Dynamic Adjustment of Operating Condition Deviation: For each grouting unit, when its cumulative grouting volume reaches a preset ratio, its pressure-flow rate deviation coefficient is calculated. : ； in, and This represents the actual average pressure and flow rate of the unit. and Design pressure and flow for the blueprint. and These are the weighting coefficients; Set deviation coefficient threshold ,according to Values ​​are determined and adjusted: like And satisfy If a void or crack is detected, the enhanced filling plan is triggered, and the grout mix ratio is automatically adjusted and the grouting volume is increased. like If the deviation is too large, it is determined to be a moderate deviation, and the grouting parameters of the subsequent adjacent units are fine-tuned. S2.3 Optimized grouting: Based on the judgment and adjustment results of step S2.2, update the construction blueprint and perform at least one round of grouting according to the updated blueprint, focusing on the areas that deviate from the judgment area and the areas where the first round of diffusion did not meet the standard.

5. The composite grouting reinforcement construction process for underwater foundations according to claim 4, characterized in that, The specific operation of the triggered enhanced filling plan is as follows: immediately reduce the current water-cement ratio setting of the slurry. The design grouting volume for this unit and its adjacent units was increased. Its instruction formula is: 。 6. The composite grouting reinforcement construction process for underwater foundations according to claim 1, characterized in that, The specific process of effect verification and real-time compensation in step S3 is as follows: S3.1, Verification of reinforcement effect: After the final grouting is completed, a pre-set time is used to scan and generate a wave velocity increase rate distribution map after reinforcement using the cross-hole CT method, and the permeability coefficient is measured by water pressure test. S3.2 Weak Element Identification and Compensation: Set a threshold for the strength improvement rate With permeability coefficient qualified threshold The verification results are compared with the preset reinforcement targets, and the system automatically identifies areas where the wave velocity increase rate is lower than the target value. or permeability coefficient higher The elements that are weak are marked as weak elements; S3.3 Real-time compensation grouting: For all identified weak units, the iterative grouting logic described in claim 4 is invoked for localized and precise reinforcement; after reinforcement is completed, a review and verification is performed until all regional indicators meet the standards.

7. The composite grouting reinforcement construction process for underwater foundations according to claim 6, characterized in that, Steps S2 and S3 form a closed loop. The construction logic, judgment and adjustment methods of the compensation grouting initiated in step S3 are the same as those of the iterative grouting construction described in step S2.

8. A composite grouting reinforcement construction system for underwater foundations, used to implement the construction process according to any one of claims 1 to 7, characterized in that, include: The intelligent survey and scheme design module is used to perform data collection, quantitative index calculation, disease distribution map generation, and dynamic construction blueprint development. The dynamic grouting construction control module is used to execute iterative grouting construction, including real-time data acquisition, working condition deviation judgment, dynamic parameter adjustment and equipment control; The effect verification and compensation management module is used to perform reinforcement effect verification, weak unit identification, and compensation grouting command issuance. The central control system connects and coordinates the control of the above modules, enabling full-process data interaction and automated management.

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