A geological self-adaptive based open caisson sinking method and system

Abstract

This invention relates to the field of caisson technology, specifically to a geologically adaptive caisson sinking method and system. The method includes acquiring a three-dimensional geological digital model of the construction area and initial design parameters of the caisson structure; determining an initial layout scheme for drag reduction strategies and servo support systems based on the three-dimensional geological digital model and caisson structure design parameters; deploying and initiating the sinking system according to the initial layout scheme of the drag reduction strategies and servo support systems to obtain a sinking control structure; performing dynamic closed-loop control processing of the sinking process according to the sinking control structure to obtain control commands for caisson sinking; and executing the sinking operation according to the control commands to obtain an underground station structure. This invention can effectively avoid sudden sinking and structural damage, and significantly reduce disturbance to the surrounding environment through dynamic balance control of the sinking resultant force and frictional resistance.

Description

Technical Field

[0001] This invention relates to the field of caisson technology, and more specifically, to a geologically adaptive caisson sinking method and system. Background Technology

[0002] Caisson construction is a deep foundation pit construction method that uses the structure's own weight to overcome sidewall friction and sink to the design elevation. It is widely used in bridge pier foundations, pump houses, and other projects. However, when used in the construction of large-span, deep-buried underground stations, it faces significant challenges: uneven soil distribution and construction disturbances can easily cause the caisson to tilt, shift, or twist during construction. Traditional attitude control relies on empirical post-construction correction, such as off-site soil removal or local jacking, which suffers from control lag and insufficient precision, potentially inducing sudden settlement or structural damage. In water-rich strata, improper dewatering or soil removal can easily cause an imbalance of water and soil pressure, leading to water inrush, sand inrush, and settlement of surrounding soil, endangering the safety of adjacent buildings and pipelines. In addition, station structures are characterized by thin walls and large spans, and are subjected to complex soil pressure and uneven support during the sinking process. How to maintain the stability and integrity of the structure and suppress cracking and deformation at each construction stage under high-altitude and underground working conditions has become a key bottleneck restricting the widespread adoption of this method. Summary of the Invention

[0003] The purpose of this invention is to provide a geologically adaptive caisson sinking method and system to improve the above-mentioned problems.

[0004] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0005] On one hand, embodiments of this application provide a geologically adaptive caisson sinking method, the method comprising:

[0006] Obtain a three-dimensional geological digital model of the construction area and the initial design parameters of the caisson structure;

[0007] Based on the three-dimensional geological digital model and the caisson structure design parameters, determine the drag reduction strategy and the initial layout scheme of the servo support system.

[0008] Based on the drag reduction strategy and the initial layout scheme of the servo support system, the sinking system is deployed and started to obtain the sinking control structure.

[0009] Based on the aforementioned sinking control structure, dynamic closed-loop control processing of the sinking process is performed to obtain control commands for the sinking of the caisson.

[0010] The sinking operation is carried out according to the control command to obtain the underground station structure.

[0011] Secondly, embodiments of this application provide a geologically adaptive caisson sinking system, the system comprising:

[0012] The acquisition module is used to acquire a three-dimensional geological digital model of the construction area and the initial design parameters of the caisson structure.

[0013] The first processing module is used to determine the drag reduction strategy and the initial layout scheme of the servo support system based on the three-dimensional geological digital model and the caisson structure design parameters.

[0014] The second processing module is used to perform the deployment and startup processing of the sinking system according to the drag reduction strategy and the initial deployment scheme of the servo support system, so as to obtain the sinking control structure.

[0015] The third processing module is used to perform dynamic closed-loop control processing of the sinking process according to the sinking control structure to obtain the control command for sinking the caisson.

[0016] The fourth processing module is used to perform the sinking operation according to the control command to obtain the underground station structure.

[0017] Thirdly, embodiments of this application provide a geologically adaptive caisson sinking device, the device including a memory and a processor. The memory stores a computer program; the processor executes the computer program to implement the steps of the aforementioned geologically adaptive caisson sinking method.

[0018] Fourthly, embodiments of this application provide a readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the above-described geologically adaptive caisson sinking method.

[0019] The beneficial effects of this invention are as follows:

[0020] By acquiring quantitative control indicators of the sinking process, a three-dimensional geological digital model, and structural design parameters, precise preset targets and geological basis are provided for construction. Based on this, an initial drag reduction strategy matrix and an initial support parameter matrix are generated, achieving precise matching between the drag reduction scheme and geological conditions, and scientific layout of the support system. Furthermore, a sinking control structure integrating sensing, execution, and control communication capabilities is constructed. Through dynamic comparison and analysis of real-time monitoring data and geological model predictions, adaptive dynamic adjustment of drag reduction parameters and support forces is achieved. Finally, through alternating scheduling logic, the inherent safety of the support system during the conversion process is ensured. The synergistic effect of the above technical means enables this invention to actively suppress attitude deviations caused by uneven geological formations, effectively avoiding sudden sinking and structural damage. Through dynamic balance control of sinking resultant force and frictional resistance, disturbance to the surrounding environment is significantly reduced. With the help of ground-based pouring and data-driven precision operations, while improving construction quality and safety, a value leap from permanent-temporary combination to full life-cycle data closed loop is achieved.

[0021] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the geologically adaptive caisson sinking method described in an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the geologically adaptive caisson sinking device described in an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the initial construction phase.

[0026] Figure 4 This diagram illustrates the cutting edge construction and the activation of the first layer of jacks.

[0027] Figure 5 A schematic diagram of the first section of the station structure for pouring concrete.

[0028] Figure 6 This is a schematic diagram of the servo support system control structure sinking at a constant speed to the first excavation face.

[0029] Figure 7 A schematic diagram for removing the supporting steel pipes in columns A and E.

[0030] Figure 8 A schematic diagram for removing the supporting steel pipes in columns B and D.

[0031] Figure 9 A schematic diagram for removing the supporting steel pipes in column C.

[0032] Figure 10 This is a schematic diagram of 5 columns being lifted simultaneously.

[0033] Figure 11 This is a schematic diagram of the new support elevation system being lowered.

[0034] Figure 12 This is a schematic diagram of the station's elevation connection process.

[0035] Figure 13 This is a schematic diagram showing the synchronous sinking of the second-level jacks.

[0036] Figure 14 This is a schematic diagram of the structural bottom sealing.

[0037] The diagram is labeled as follows: 800, Geologically Adaptive Caisson Sinking Equipment; 801, Processor; 802, Memory; 803, Multimedia Components; 804, I / O Interface; 805, Communication Components. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Example 1:

[0041] This embodiment provides a geologically adaptive caisson sinking method. It can be understood that this embodiment can be used to lay out a scenario, such as building a subway station in a dense urban area.

[0042] See Figure 1 The figure shows that the method includes steps S1-S5.

[0043] Step S1: Obtain the three-dimensional geological digital model of the construction area and the initial design parameters of the caisson structure;

[0044] This step transforms complex and variable geological conditions and structural characteristics into quantifiable information, enabling subsequent decision-making to move away from reliance on experience and instead be based on objective and accurate stratigraphic and structural data. This is particularly suitable for engineering environments such as urban centers that are sensitive to subsidence and have well-hidden geological conditions.

[0045] Step S2: Determine the drag reduction strategy and the initial layout scheme of the servo support system based on the three-dimensional geological digital model and the caisson structure design parameters;

[0046] This step involves dividing the soil layers through which the caisson passes using a three-dimensional geological digital model, matching the most suitable drag reduction method to different sections, and designing the layout of the servo support system based on the structural weight and estimated frictional resistance, thus mitigating the risk of attitude loss of control that may arise due to uneven soil hardness before construction.

[0047] Step S2 further includes steps S21-S23, which specifically include:

[0048] Step S21: Divide the geological sections according to the three-dimensional geological digital model to obtain the divided geological sections;

[0049] In this step, the established 3D geological digital model is analyzed, using vertical intervals of 1 to 2 meters as basic analysis units. Key physical and mechanical parameters of the soil within each unit are extracted, primarily including soil type, standard penetration test (SPT) blow count, internal friction angle, cohesion, and groundwater level. Subsequently, a clustering algorithm is used to group consecutive units with similar mechanical properties into the same geological section. This achieves fine-grained division of different sections, avoiding the problem of poor or even ineffective application of a single drag reduction strategy in varying strata.

[0050] Step S22: Perform drag reduction method matching processing according to the divided geological sections to obtain the drag reduction scheme corresponding to each section;

[0051] In this step, for the soft plastic clay section, due to its fine soil particles and poor permeability, a mud lubrication sleeve method should be used to form a stable, low-friction mud skin between the well wall and the soil. For the water-rich sand and gravel section, an air curtain drag reduction method is used, which forms a gas-liquid two-phase flow on the sidewall by continuously spraying air bubbles, thereby significantly reducing friction.

[0052] Step S23: Calculate the layout scheme of the servo support system based on the initial design parameters of the caisson structure and the preset total friction resistance.

[0053] In this step, the total sinking force required by the servo support system is:

[0054]

[0055] In the above formula, This represents the total self-weight of the caisson structure, which can be calculated based on the volume of the caisson structure and the density of the concrete. The estimated total sidewall friction is obtained by multiplying the sidewall area of ​​each geological section in the three-dimensional geological digital model with the standard value of the ultimate friction of the soil in that section and then summing the results. It reflects the soil's resistance to settlement. The settling force safety factor, typically 1.5-2.5, is used to account for uncertainties in frictional resistance prediction and dynamic construction loads, ensuring sufficient force reserve during the settling process. Based on the jack model, the rated working load of a single hydraulic jack is determined. Then, based on the total settling force required by the servo support system and the rated working load of a single hydraulic jack, the total number of hydraulic jacks needed can be calculated, thus obtaining the specific layout scheme for the servo support system.

[0056] Step S3: Based on the drag reduction strategy and the initial layout scheme of the servo support system, the sinking system is deployed and started to obtain the sinking control structure.

[0057] This step integrates drag-reducing components, monitoring sensors, and servo actuators into the caisson structure, constructing an intelligent sinking control structure with sensing, execution, and communication capabilities. This makes the caisson itself an intelligent entity, providing a physical carrier for high-precision, feedback-enabled operations in unstable soil environments.

[0058] Step S3 further includes steps S31-S34, which specifically include:

[0059] Step S31: According to the drag reduction strategy, the drag reduction system components are arranged and processed. By pre-embedding grouting pipes, air curtain pipes and friction sensor arrays in the caisson wall, a drag reduction interface integrated into the structure is obtained.

[0060] Step S32: Install the servo support system according to the initial layout plan of the servo support system. By installing a cluster of hydraulic jacks on the top of the column pile and connecting them with the bottom beam of the caisson, the arranged servo support system is obtained. The arranged servo support system is used to provide controllable lifting force and downward pressure.

[0061] Step S33: Based on the initial design parameters of the caisson structure, perform structural monitoring network layout processing to obtain the monitoring network;

[0062] Step S34: Construct a sinking control structure based on the drag reduction interface, the arranged servo support system, and the monitoring network.

[0063] In this embodiment, the traditionally independent drag reduction, support, and monitoring functions are integrated into a single intelligent agent capable of perception, decision-making, and execution. By pre-embedding drag reduction and monitoring components during the structural pouring stage and interconnecting them with a servo support system based on permanent pile columns and a global monitoring network, the resulting sinking control structure transforms the caisson from a concrete cylinder subjected to soil forces into an intelligent structure capable of actively sensing changes in sidewall friction, adjusting drag reduction parameters in real time, and precisely distributing support forces. In complex and uneven geological formations, this enables adaptive closed-loop control of the caisson structure, eliminating traditional risks such as tilting and sudden sinking at the source and improving construction safety.

[0064] Step S4: Perform dynamic closed-loop control processing of the sinking process according to the sinking control structure to obtain the control command for sinking the caisson;

[0065] Step S4 further includes steps S41-S44, which specifically include:

[0066] Step S41: Perform data fusion and status perception processing based on real-time monitoring data from the monitoring network to obtain a digital image of the current subsidence status;

[0067] In this step, the real-time monitoring data from the monitoring network includes real-time frictional data transmitted by the frictional resistance sensor array, structural spatial attitude data transmitted by the inclinometer and displacement gauge, and structural internal force data transmitted by the stress sensor. These different heterogeneous data are time-stamped, filtered and denoised, and their coordinate systems are unified to ultimately generate a unified, multi-dimensional digital image of the current sinking state. This digital image can display the position, attitude, forces, and interaction forces between the caisson and the surrounding soil in three-dimensional space in real time and synchronously. This transforms the traditional construction mode of relying on scattered and independent readings to judge the working conditions into a holistic situational awareness based on a global and synchronous data model.

[0068] Step S42: Based on the digital image of the current subsidence state and the three-dimensional geological digital model, perform deviation analysis and decision processing to obtain an adjustment strategy;

[0069] In this step, the predicted values ​​based on the 3D geological digital model are compared and analyzed with the digital image of the current subsidence state. For example, the measured frictional resistance distribution is compared to the soil frictional resistance characteristics predicted by the geological model at that depth. Simultaneously, the structural attitude is analyzed to see if it exceeds the allowable range of the quantitative control indicators for the subsidence process. If the measured frictional resistance in a certain section is found to be significantly higher than the predicted value, or if the structure shows a continuous tilt to one side, the deviation analysis algorithm will determine that there is a deviation between the current state and the expected target. Subsequently, a specific adjustment strategy is generated based on a preset rule base (such as PID control logic or more advanced intelligent algorithms). This strategy will clearly indicate the objects to be adjusted and the adjustment targets.

[0070] Step S43: Perform dynamic control processing of the drag reduction system according to the adjustment strategy to obtain the optimized friction distribution of the drag reduction interface.

[0071] This step aims to optimize the contact interface between the caisson and the soil, actively controlling the resistance to sinking. In a specific implementation, if the adjustment strategy is to increase the mud injection pressure in a certain section, a command is sent to the grouting pump to increase its output pressure and flow rate; if the adjustment strategy is to increase the air curtain pressure in a certain section, the operating parameters of the air compressor are adjusted. These commands immediately change the state of the drag-reducing medium between the well wall and the soil (such as mud cake thickness and bubble curtain density), thereby directly changing the sidewall friction in that area and obtaining an optimized friction distribution at the drag-reducing interface. This dynamic control based on real-time feedback can actively adjust the friction fluctuations caused by uneven soil layers, creating prerequisites for smooth sinking.

[0072] Step S44: Based on the adjustment strategy and the optimized frictional resistance distribution, perform dynamic distribution processing of servo support force to obtain adjustment instructions. The adjustment instructions are used to adjust the force applied by the jacks in the servo support system.

[0073] In this step, based on the optimized friction distribution of the drag-reducing interface and the current attitude target, the lifting force or downward force required for each hydraulic jack is recalculated, thereby generating an adjustment command for the jack cluster. For example, to correct a westward tilt, the jacks on the east side increase their lifting force (or decrease their downward force), while the jacks on the west side perform the opposite operation, creating a corrective torque. These commands are precisely applied to each jack through the hydraulic control system, enabling the servo support system to actively counteract unbalanced torques and achieve precise attitude adjustment.

[0074] Step S5: Perform the sinking operation according to the control command to obtain the underground station structure.

[0075] Step S5 further includes steps S51-S53, which specifically include:

[0076] Step S51: Cast the first section of the structure and fix it to the servo support system to obtain the initial station structure with sinking capability;

[0077] In this step, such as Figure 3 As shown, the first step is construction preparation. This involves constructing a water-stop curtain using interlocking mixing piles within the planned station area, then installing multiple rows of column piles under the station's foundation slab. Hydraulic jacks and vertical support steel pipes are installed on top of the piles. Fine sand is then backfilled, and the hydraulic system is tested. Figure 4 As shown, the first layer of jacks is activated to lift the entire vertical support system to the first predetermined height and lock it in place. Excavation then begins, and the cutting edge and cutting edge steel shoe of the station structure are constructed on the excavation face. Figure 5As shown, a thick sand cushion layer was laid for leveling, then steel bars were tied, and the first part of the station's third basement level structure was poured, including the base slab, base beams, first part of the side walls, and concrete diagonal braces. The base beams were securely connected to the top of the vertical support steel pipes through embedded parts.

[0078] Step S52: Perform cyclic sinking and elevation adjustment according to the initial station structure and the control command to obtain the main station structure sunk to the design elevation;

[0079] Step S52 further includes steps S521-S525, which specifically include:

[0080] Step S521: Perform the first sinking process based on the initial station structure. Control the servo support system to synchronously retract and excavate the soil beneath it to obtain a stable structure that has sunk to the first stage.

[0081] In this step, such as Figure 6 As shown, the sand cushion layer and soil are excavated, the wooden blocks are removed, and the servo support system is controlled to make the structure sink to the first excavation face at a uniform speed.

[0082] Step S522: Perform alternating lifting of the servo support system according to the stable structure. By dismantling, lifting and relocking the support in a preset order, a new support elevation system after sinking is obtained.

[0083] In this step, such as Figures 7-10 As shown, in one specific embodiment, the servo support system consists of five rows of hydraulic jacks, from left to right (A, B, and C). First, all hydraulic jacks are controlled to retract synchronously, allowing the connected first structural section to sink uniformly to a second predetermined height under its own weight, overcoming side wall friction. After the structure stabilizes, the support steel pipes in rows A and E are removed, and the jacks in rows A and E are lifted to the new elevation and locked. The support steel pipe sections in rows B and D are removed, and the jacks in rows B and D are lifted to the new elevation and locked. The support steel pipe section in row C is removed, and the jacks in row C are lifted to the new elevation and locked, forming a working space with five rows of jacks lifting synchronously, resulting in a new support elevation system after sinking.

[0084] Step S523: Perform another synchronous sinking process according to the new support elevation system. By controlling all hydraulic jacks to retract at a uniform speed, a stable structure is obtained by sinking to the next stage.

[0085] like Figure 11 As shown, after a full round of alternating jacking (such as columns A and E), the structure is supported by a new, higher-elevation support system. At this point, a synchronous retraction command is issued to all the jacks that have been jacked and locked, so that the structure continues to sink at a constant speed under its own weight until its bottom beam sits on the new support elevation system again.

[0086] Step S524: Based on the structural elevation after multiple cycles of sinking, perform subsequent structural extension processing. By returning to the ground to pour the upper layer of structure and integrating new support points, the overall structure after extension is obtained.

[0087] In this step, such as Figure 12 As shown, the structure after the cyclic sinking will be extended to raise the height, including the remaining side walls, central columns, and central slabs in the construction station.

[0088] Step S525: Repeat the cycle of alternating lifting and synchronous lowering of the support until the overall structure after the heightening reaches the final design elevation.

[0089] In this step, such as Figure 13 As shown, the second layer of jacks is activated, and the cycle of alternating lifting and synchronous lowering of the support is repeated to raise the station structure until the entire structure reaches the design elevation.

[0090] Step S53: Perform final connection processing on the main station structure that has sunk to the design elevation. By permanently fixing the structure to the column piles and completing the bottom sealing, the underground station structure is obtained.

[0091] In this step, following the column sequence A / E->B / D->C, the second layer of jacks is removed layer by layer, and then the permanent connection between the bottom beam and the column piles is completed, resulting in the underground station structure, as shown below. Figure 14 As shown.

[0092] This invention transforms the high-risk operation mode of traditional caisson method's one-time overall sinking into a controllable, reversible, and interruptible operation by organically combining ground-based casting, phased elevation, servo support, and cyclic sinking. The first structural section is cast on the ground and fixed to the servo support system, ensuring the initial quality and integrity of the structure. Subsequently, through alternating jacking and synchronous sinking cycles, the sinking process is broken down into a series of controllable sub-steps, allowing the massive structure to gradually traverse complex and uneven strata, effectively suppressing traditional risks such as tilting and sudden sinking. After each sinking cycle, the structure returns to the ground to elevate the next layer, maximizing the transformation of high-altitude and underground high-risk operations into safe ground production. This overall technical solution enables the safe construction of a large underground station structure throughout the entire sinking process in a dynamic and concealed underground environment.

[0093] Example 2:

[0094] This embodiment provides a geologically adaptive caisson sinking system, which includes an acquisition module, a first processing module, a second processing module, a third processing module, and a fourth processing module, specifically comprising:

[0095] The acquisition module is used to acquire a three-dimensional geological digital model of the construction area and the initial design parameters of the caisson structure.

[0096] The first processing module is used to determine the drag reduction strategy and the initial layout scheme of the servo support system based on the three-dimensional geological digital model and the caisson structure design parameters.

[0097] The second processing module is used to perform the deployment and startup processing of the sinking system according to the drag reduction strategy and the initial deployment scheme of the servo support system, so as to obtain the sinking control structure.

[0098] The third processing module is used to perform dynamic closed-loop control processing of the sinking process according to the sinking control structure to obtain the control command for sinking the caisson.

[0099] The fourth processing module is used to perform the sinking operation according to the control command to obtain the underground station structure.

[0100] In one specific embodiment of this disclosure, the first processing module further includes a first processing unit, a second processing unit, and a third processing unit, specifically including:

[0101] The first processing unit is used to perform geological segmentation processing based on the three-dimensional geological digital model to obtain the divided geological segments.

[0102] The second processing unit is used to perform drag reduction method matching processing according to the divided geological sections to obtain the drag reduction scheme corresponding to each section.

[0103] The third processing unit is used to calculate the layout scheme of the servo support system based on the initial design parameters of the caisson structure and the preset total frictional resistance.

[0104] In one specific embodiment of this disclosure, the second processing module further includes a fourth processing unit, a fifth processing unit, a sixth processing unit, and a seventh processing unit, specifically including:

[0105] The fourth processing unit is used to process the layout of drag reduction system components according to the drag reduction strategy. By pre-embedding grouting pipes, air curtain pipes and friction sensor arrays in the caisson wall, a drag reduction interface integrated into the structure is obtained.

[0106] The fifth processing unit is used to install the servo support system according to the initial layout plan of the servo support system. By installing a cluster of hydraulic jacks on the top of the column pile and connecting them with the bottom beam of the caisson, the arranged servo support system is obtained. The arranged servo support system is used to provide controllable lifting force and downward pressure.

[0107] The sixth processing unit is used to perform structural monitoring network layout processing based on the initial design parameters of the caisson structure to obtain the monitoring network;

[0108] The seventh processing unit is used to construct a sinking control structure based on the drag reduction interface, the arranged servo support system, and the monitoring network.

[0109] In one specific embodiment of this disclosure, the third processing module further includes an eighth processing unit, a ninth processing unit, a tenth processing unit, and an eleventh processing unit, specifically including:

[0110] The eighth processing unit is used to perform data fusion and status perception processing based on real-time monitoring data from the monitoring network to obtain a digital image of the current subsidence status.

[0111] The ninth processing unit is used to perform deviation analysis and decision processing based on the digital image of the current subsidence state and the three-dimensional geological digital model to obtain an adjustment strategy;

[0112] The tenth processing unit is used to perform dynamic control processing of the drag reduction system according to the adjustment strategy to obtain the optimized friction distribution of the drag reduction interface.

[0113] The eleventh processing unit is used to perform dynamic distribution processing of servo support force according to the adjustment strategy and the optimized friction resistance distribution, and to obtain adjustment instructions. The adjustment instructions are used to adjust the force applied by the jacks in the servo support system.

[0114] In one specific embodiment of this disclosure, the fourth processing module further includes a twelfth processing unit, a thirteenth processing unit, and a fourteenth processing unit, specifically comprising:

[0115] The twelfth processing unit is used to cast the first section of the structure and fix it to the servo support system to obtain the initial station structure with sinking capability.

[0116] The thirteenth processing unit is used to perform cyclic sinking and elevation adjustment processing according to the initial station structure and the control command to obtain the station main structure sinking to the design elevation.

[0117] The fourteenth processing unit is used to perform final connection processing on the main station structure that has sunk to the design elevation. By permanently fixing the structure to the column piles and completing the bottom sealing, the underground station structure is obtained.

[0118] In one specific embodiment of this disclosure, the thirteenth processing unit further includes a fifteenth processing unit, a sixteenth processing unit, a seventeenth processing unit, an eighteenth processing unit, and a nineteenth processing unit, specifically comprising:

[0119] The fifteenth processing unit is used to perform the first sinking process based on the initial station structure. By controlling the servo support system to retract synchronously and excavate the soil beneath it, a stable structure that has sunk to the first stage is obtained.

[0120] The sixteenth processing unit is used to perform alternating lifting of the servo support system according to the stable structure. By dismantling, lifting and relocking the support in a preset column sequence, a new support elevation system after sinking is obtained.

[0121] The seventeenth processing unit is used to perform a second synchronous sinking process based on the new support elevation system. By controlling all hydraulic jacks to retract at a uniform speed, a stable structure is obtained by sinking to the next stage.

[0122] The eighteenth processing unit is used to perform subsequent structural extension processing based on the structural elevation after multiple cycles of sinking. It obtains the overall structure after extension by returning to the ground to pour the upper layer of structure and integrating new support points.

[0123] The nineteenth processing unit is used to repeatedly execute the cycle of alternating lifting and synchronous lowering of the support until the overall structure after the elevation is raised reaches the final design elevation.

[0124] It should be noted that the specific methods by which each module performs operations in the system described in the above embodiments have been described in detail in the embodiments related to the method, and will not be elaborated here.

[0125] Example 3:

[0126] Corresponding to the above method embodiments, this embodiment also provides a geologically adaptive caisson sinking device. The geologically adaptive caisson sinking device described below and the geologically adaptive caisson sinking method described above can be referred to each other.

[0127] Figure 2 This is a block diagram illustrating a geologically adaptive caisson sinking device 800 according to an exemplary embodiment. Figure 2 As shown, the geologically adaptive caisson sinking device 800 may include a processor 801 and a memory 802. The geologically adaptive caisson sinking device 800 may also include one or more of a multimedia component 803, an I / O interface 804, and a communication component 805.

[0128] The processor 801 controls the overall operation of the geologically adaptive caisson sinking device 800 to complete all or part of the steps in the geologically adaptive caisson sinking method described above. The memory 802 stores various types of data to support the operation of the geologically adaptive caisson sinking device 800. This data may include, for example, instructions for any application or method operating on the geologically adaptive caisson sinking device 800, as well as application-related data such as contact data, sent and received messages, images, audio, video, etc. The memory 802 can be implemented using any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The multimedia component 803 may include a screen and an audio component. The screen may be, for example, a touchscreen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in the memory 802 or transmitted via the communication component 805. The audio component also includes at least one speaker for outputting audio signals. I / O interface 804 provides an interface between processor 801 and other interface modules, such as keyboards, mice, and buttons. These buttons can be virtual or physical. Communication component 805 is used for wired or wireless communication between the geologically adaptive caisson sinking device 800 and other devices. Wireless communication includes, for example, Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, or 4G, or a combination thereof. Therefore, the corresponding communication component 805 may include a Wi-Fi module, a Bluetooth module, and an NFC module.

[0129] In an exemplary embodiment, the geologically adaptive caisson sinking device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the geologically adaptive caisson sinking method described above.

[0130] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, which, when executed by a processor, implement the steps of the geologically adaptive caisson sinking method described above. For example, the computer-readable storage medium may be the memory 802 including the program instructions described above, which may be executed by the processor 801 of the geologically adaptive caisson sinking device 800 to complete the geologically adaptive caisson sinking method described above.

[0131] Example 4:

[0132] Corresponding to the above method embodiments, this embodiment also provides a readable storage medium. The readable storage medium described below can be referred to in relation to the geologically adaptive caisson sinking method described above.

[0133] A readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the geologically adaptive caisson sinking method described in the above method embodiments.

[0134] Specifically, the readable storage medium can be a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, or any other readable storage medium capable of storing program code.

[0135] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0136] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A geologically adaptive caisson sinking method, characterized in that, include: Obtain a three-dimensional geological digital model of the construction area and the initial design parameters of the caisson structure; Based on the three-dimensional geological digital model and the caisson structure design parameters, determine the drag reduction strategy and the initial layout scheme of the servo support system. Based on the drag reduction strategy and the initial layout scheme of the servo support system, the sinking system is deployed and started to obtain the sinking control structure. Based on the aforementioned sinking control structure, dynamic closed-loop control processing of the sinking process is performed to obtain control commands for the sinking of the caisson. The sinking operation is carried out according to the control command to obtain the underground station structure.

2. The geologically adaptive caisson sinking method according to claim 1, characterized in that, Based on the aforementioned three-dimensional geological digital model and caisson structure design parameters, the initial layout scheme of the drag reduction strategy and servo support system is determined, including: The geological sections are divided according to the three-dimensional geological digital model to obtain the divided geological sections. Based on the divided geological sections, drag reduction methods are matched to obtain drag reduction schemes for each section. The layout scheme of the servo support system is obtained by calculating the initial design parameters and the preset total frictional resistance of the caisson structure.

3. The geologically adaptive caisson sinking method according to claim 1, characterized in that, The sinking system is deployed and started up according to the drag reduction strategy and the initial deployment scheme of the servo support system, including: The drag reduction system components are arranged according to the drag reduction strategy. By pre-embedding grouting pipes, air curtain pipes and friction sensor arrays in the caisson wall, a drag reduction interface integrated into the structure is obtained. According to the initial layout plan of the servo support system, the servo support system is installed by installing a cluster of hydraulic jacks on the top of the column pile and connecting them with the bottom beam of the caisson. The servo support system after the layout is obtained. The servo support system after the layout is used to provide controllable lifting force and downward pressure. Based on the initial design parameters of the caisson structure, a structural monitoring network is deployed to obtain the monitoring network. The sinking control structure is constructed based on the drag-reducing interface, the arranged servo support system, and the monitoring network.

4. The geologically adaptive caisson sinking method according to claim 1, characterized in that, The sinking operation is performed according to the control command, including: The first section of the structure was poured and fixedly connected to the servo support system to obtain the initial station structure with sinking capability; Based on the initial station structure and the control commands, a cyclic sinking and elevation adjustment process is performed to obtain the main station structure that has sunk to the design elevation. The final connection process is carried out on the main station structure that has sunk to the design elevation. By permanently fixing the structure to the column piles and completing the bottom sealing, the underground station structure is obtained.

5. The geologically adaptive caisson sinking method according to claim 4, characterized in that, Based on the initial station structure and the control commands, a cyclical sinking and raising process is performed, including: The initial station structure was subjected to initial sinking treatment. By controlling the servo support system to retract synchronously and excavate the soil beneath it, a stable structure was obtained after sinking to the first stage. The servo support system is alternately lifted according to the stable structure. The support is dismantled, lifted and relocked in a step-by-step manner according to a preset column sequence to obtain a new support elevation system after sinking. Based on the new support elevation system, a second synchronous sinking process is carried out. By controlling all hydraulic jacks to retract at a uniform speed, a stable structure is obtained by sinking to the next stage. Based on the structural elevation after multiple cycles of sinking, subsequent structural extension processing is carried out. The upper layer of structure is poured back to the ground and new support points are integrated to obtain the overall structure after extension. Repeat the cycle of alternating lifting and synchronous lowering of the support until the overall structure after the elevation is reached the final design elevation.

6. A geologically adaptive caisson sinking system, characterized in that, include: The acquisition module is used to acquire a three-dimensional geological digital model of the construction area and the initial design parameters of the caisson structure. The first processing module is used to determine the drag reduction strategy and the initial layout scheme of the servo support system based on the three-dimensional geological digital model and the caisson structure design parameters. The second processing module is used to perform the deployment and startup processing of the sinking system according to the drag reduction strategy and the initial deployment scheme of the servo support system, so as to obtain the sinking control structure. The third processing module is used to perform dynamic closed-loop control processing of the sinking process according to the sinking control structure to obtain the control command for sinking the caisson. The fourth processing module is used to perform the sinking operation according to the control command to obtain the underground station structure.

7. The geologically adaptive caisson sinking system according to claim 6, characterized in that, The first processing module includes: The first processing unit is used to perform geological segmentation processing based on the three-dimensional geological digital model to obtain the divided geological segments. The second processing unit is used to perform drag reduction method matching processing according to the divided geological sections to obtain the drag reduction scheme corresponding to each section. The third processing unit is used to calculate the layout scheme of the servo support system based on the initial design parameters of the caisson structure and the preset total frictional resistance.

8. The geologically adaptive caisson sinking system according to claim 6, characterized in that, The second processing module includes: The fourth processing unit is used to process the layout of drag reduction system components according to the drag reduction strategy. By pre-embedding grouting pipes, air curtain pipes and friction sensor arrays in the caisson wall, a drag reduction interface integrated into the structure is obtained. The fifth processing unit is used to install the servo support system according to the initial layout plan of the servo support system. By installing a cluster of hydraulic jacks on the top of the column pile and connecting them with the bottom beam of the caisson, the arranged servo support system is obtained. The arranged servo support system is used to provide controllable lifting force and downward pressure. The sixth processing unit is used to perform structural monitoring network layout processing based on the initial design parameters of the caisson structure to obtain the monitoring network; The seventh processing unit is used to construct a sinking control structure based on the drag reduction interface, the arranged servo support system, and the monitoring network.

9. The geologically adaptive caisson sinking system according to claim 6, characterized in that, The fourth processing module includes: The twelfth processing unit is used to cast the first section of the structure and fix it to the servo support system to obtain the initial station structure with sinking capability. The thirteenth processing unit is used to perform cyclic sinking and elevation adjustment processing according to the initial station structure and the control command to obtain the station main structure sinking to the design elevation. The fourteenth processing unit is used to perform final connection processing on the main station structure that has sunk to the design elevation. By permanently fixing the structure to the column piles and completing the bottom sealing, the underground station structure is obtained.

10. The geologically adaptive caisson sinking system according to claim 9, characterized in that, The thirteenth processing unit includes: The fifteenth processing unit is used to perform the first sinking process based on the initial station structure. By controlling the servo support system to retract synchronously and excavate the soil beneath it, a stable structure that has sunk to the first stage is obtained. The sixteenth processing unit is used to perform alternating lifting of the servo support system according to the stable structure. By dismantling, lifting and relocking the support in a preset column sequence, a new support elevation system after sinking is obtained. The seventeenth processing unit is used to perform a second synchronous sinking process based on the new support elevation system. By controlling all hydraulic jacks to retract at a uniform speed, a stable structure is obtained by sinking to the next stage. The eighteenth processing unit is used to perform subsequent structural extension processing based on the structural elevation after multiple cycles of sinking. It obtains the overall structure after extension by returning to the ground to pour the upper layer of structure and integrating new support points. The nineteenth processing unit is used to repeatedly execute the cycle of alternating lifting and synchronous lowering of the support until the overall structure after the elevation is raised reaches the final design elevation.

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