A shield efficiency control method, device and medium based on a composite stratum

Abstract

This specification discloses a method, device, and medium for shield tunneling efficiency control based on composite strata, relating to the field of shield tunneling control technology. The method includes: collecting real-time tunneling parameters and shield equipment parameters of a multi-mode shield tunneling machine; determining the current shield strata information of the multi-mode shield tunneling machine based on the real-time tunneling parameters; predicting the shield tunneling process of the multi-mode shield tunneling machine based on the current shield strata information and shield equipment parameters; determining the predicted muck discharge information corresponding to the current shield strata; matching the corresponding muck discharge system based on the predicted muck discharge information to determine an initial muck discharge control scheme; controlling the operation of the current muck discharge system and collecting real-time muck discharge information of the multi-mode shield tunneling machine; adjusting the initial muck discharge control scheme based on the real-time muck discharge information to generate an adjusted muck discharge control scheme; and controlling the operation of the adjusted muck discharge system by adjusting the muck discharge control scheme to achieve shield tunneling efficiency control of the multi-mode shield tunneling machine.

Description

Technical Field

[0001] This specification relates to the field of shield tunneling control technology, and in particular to a shield tunneling efficiency control method, equipment and medium based on composite strata. Background Technology

[0002] With the continuous development of tunnel construction, tunnel engineering is presenting more complex and varied scenarios, potentially involving complex geological formations. For example, a tunnel section may traverse multiple strata such as hard rock, soft upper rock with hard lower rock, fault fracture zones, and isolated boulders. To address these complex geological conditions, a new type of multi-mode shield tunneling machine (TBM) has emerged, featuring three excavation modes: slurry balance, earth pressure balance, and tunnel boring machine (TBM). This TBM can quickly switch between excavation modes, has two muck removal systems, and is widely applicable to tunnel construction projects with diverse geological conditions.

[0003] During tunnel boring machine (TBM) operation, the machine needs to discharge the excavated soil to continue advancing. If the discharge is obstructed, it can lead to a decrease in the TBM's excavation speed or even shutdown. In TBM operations in complex geological formations, the soil conditions vary depending on the geological conditions. Traditional soil transportation methods are limited by these varying conditions, making it impossible to adjust the discharge process based on real-time TBM conditions. This results in potential problems such as reduced excavation speed and machine shutdowns, ultimately impacting TBM efficiency. Summary of the Invention

[0004] This specification provides one or more embodiments of a shield tunneling efficiency control method, device, and medium based on composite strata to solve the following technical problem: during shield tunneling, the slag removal process cannot be adjusted according to the real-time shield tunneling situation, resulting in potential risks such as reduced excavation speed and machine shutdown, which affects shield tunneling efficiency.

[0005] One or more embodiments of this specification employ the following technical solutions:

[0006] This specification provides one or more embodiments of a shield tunneling efficiency control method based on composite strata. The method includes: collecting real-time tunneling parameters and shield equipment parameters of a multi-mode shield tunneling device; determining the current shield strata information of the multi-mode shield tunneling device using the real-time tunneling parameters, wherein the real-time tunneling parameters include total tunneling thrust, shield cutterhead parameters, tunneling speed, and tunneling penetration depth; predicting the shield tunneling process of the multi-mode shield tunneling device based on the current shield strata information and the shield equipment parameters, and determining the predicted muck discharge information corresponding to the current shield strata, wherein the predicted muck discharge information includes the predicted muck discharge type and the predicted muck discharge volume; and matching the corresponding muck discharge system based on the predicted muck discharge information to determine the initial muck discharge. The control scheme includes an initial slag discharge control scheme comprising a current slag discharge system and predicted slag discharge operating parameters for the current slag discharge system. The slag discharge system includes either a screw conveyor slag discharge system or a slurry circulation slag discharge system. The initial slag discharge control scheme controls the operation of the current slag discharge system and collects real-time slag discharge information from the multi-mode tunnel boring machine. Based on this real-time slag discharge information, the initial slag discharge control scheme is adjusted to generate an adjusted slag discharge control scheme. This adjusted slag discharge control scheme includes an adjusted slag discharge system, slag discharge operating control parameters for the adjusted slag discharge system, and slag transport parameters. The adjusted slag discharge control scheme controls the operation of the adjusted slag discharge system, thereby achieving tunnel boring efficiency control for the multi-mode tunnel boring machine.

[0007] Optionally, in one or more embodiments of this specification, determining the current shield formation information of the multi-mode shield tunneling equipment using its real-time tunneling parameters specifically includes: determining the current formation tunneling penetration factor of the multi-mode shield tunneling equipment using the total tunneling thrust and the tunneling penetration depth in the real-time tunneling parameters, wherein the current formation tunneling penetration factor represents the thrust corresponding to a unit penetration depth in the current formation; determining the current shield energy of the multi-mode shield tunneling equipment based on the cutterhead parameters, the total tunneling thrust, and the tunneling speed, wherein the cutterhead parameters include cutterhead torque and cutterhead rotation speed; determining the current tunneling rock volume of the multi-mode shield tunneling equipment based on the cutterhead tunneling radius and the tunneling speed in the cutterhead parameters; determining the current formation shield consumption factor of the multi-mode shield tunneling equipment using the current shield capacity and the current tunneling rock volume; and determining the current shield formation information of the multi-mode shield tunneling equipment based on the current formation tunneling penetration factor and the current formation shield consumption factor.

[0008] Optionally, in one or more embodiments of this specification, determining the current shield stratum information of the multi-mode shield tunneling equipment based on the current stratum tunneling penetration factor and the current stratum shield consumption factor specifically includes: acquiring the shield area geological distribution information of the multi-mode shield tunneling equipment; acquiring multiple historical shield tunneling indicators of the multi-mode shield tunneling equipment based on the shield area geological distribution information, wherein the historical shield tunneling indicators correspond to multiple distributed strata; classifying the shield area geological distribution information based on the multiple historical shield tunneling indicators of the multi-mode shield tunneling equipment to determine multiple distributed stratum indicator information, wherein each distributed stratum indicator information corresponds to the shield tunneling capacity of the multi-mode shield tunneling equipment in the distributed stratum, and each distributed stratum indicator information includes a stratum shield consumption factor reference interval and a stratum tunneling penetration factor reference interval; matching the current stratum tunneling penetration factor and the current stratum shield consumption factor with the multiple distributed stratum indicator information to determine the current shield stratum information of the multi-mode shield tunneling equipment.

[0009] Optionally, in one or more embodiments of this specification, the shielding process of the multi-mode shield machine is predicted based on the current shield stratum information and the shield machine parameters to determine the predicted muck discharge information corresponding to the current shield stratum. Specifically, this includes: matching the current shield stratum information in a pre-built stratum shield machine prediction model library to determine the current stratum shield machine prediction model corresponding to the current shield stratum; and setting the equipment parameters of the current stratum shield machine prediction model using the shield machine parameters to output the predicted muck discharge type, predicted muck discharge quantity, and predicted muck discharge speed corresponding to the current shield stratum. The predicted muck discharge type includes any one or more of mud-slag mixtures and rock debris particles, and the predicted muck discharge quantity includes the muck discharge quantity for each of the predicted muck discharge types.

[0010] Optionally, in one or more embodiments of this specification, based on the predicted slag discharge information, matching the corresponding slag discharge system and determining the initial slag discharge control scheme specifically includes: obtaining the predicted slag discharge type in the predicted slag discharge information; matching the predicted slag discharge type with a pre-constructed slag discharge matching table to determine the current slag discharge system corresponding to the predicted slag discharge type, wherein the slag discharge matching table includes multiple slag discharge types and suggested slag discharge systems corresponding to each slag discharge type; performing numerical simulation of the slag discharge process of the current slag discharge system according to the predicted slag discharge volume and predicted slag discharge speed in the predicted slag discharge information to determine the simulated slag discharge process of the current slag discharge system; and adjusting the operating parameters of the current slag discharge system with slag discharge efficiency as the optimization target during the simulated slag discharge process to determine the predicted slag discharge operating parameters of the current slag discharge system.

[0011] Optionally, in one or more embodiments of this specification, the initial slag discharge control scheme is adjusted based on the real-time slag discharge information to generate an adjusted slag discharge control scheme. This specifically includes: acquiring the real-time slag discharge information, wherein the real-time slag discharge information includes the real-time slag discharge type and multiple real-time slag parameters, wherein the real-time slag parameters include slag particle size; when the current slag discharge system is a slurry-water circulation slag discharge system, monitoring the multiple slag particle sizes and determining the amount of slag particles larger than a preset particle size threshold; when the amount of slag meets a preset slag discharge switching threshold, switching the current slag discharge system in the initial slag discharge control scheme to determine an adjusted slag discharge system; based on the adjusted slag discharge system and the actual slag discharge volume and actual slag discharge speed in the real-time slag discharge information, determining the simulated slag discharge process of the adjusted slag discharge system to determine the slag discharge operation control parameters and the slag generation parameters to be transported for the adjusted slag discharge system; and determining the slag transportation parameters of the slag transport vehicles through the slag generation parameters, wherein the slag transportation parameters include the quantity transported by the slag transport vehicles in a single trip.

[0012] Optionally, in one or more embodiments of this specification, after controlling the operation of the adjusted slag discharge system through the adjusted slag discharge control scheme, the method further includes: collecting real-time slag discharge information of the adjusted slag discharge system according to the adjusted slag discharge system, wherein the real-time slag discharge information includes real-time slag inflow and real-time slag outflow; monitoring the adjusted slag discharge system through the real-time slag discharge information to determine the real-time slag discharge capacity factor of the adjusted slag discharge system; constructing a slag discharge capacity evolution curve of the real-time slag discharge capacity factor, so as to adjust the real-time operating parameters of the adjusted slag discharge system through the slag discharge capacity evolution curve and a pre-constructed slag discharge capacity threshold, wherein the real-time operating parameters include the conveyor shaft speed or the mud pump power.

[0013] Optionally, in one or more embodiments of this specification, the real-time slag discharge capacity factor of the adjusted slag discharge system is determined by monitoring the real-time slag discharge information. Specifically, this includes: determining the actual slag discharge volume of the adjusted slag discharge system by using the real-time slag inlet volume and the real-time slag outlet volume in the real-time slag discharge information; and determining the real-time slag discharge capacity factor of the adjusted slag discharge system based on the actual slag discharge volume and the real-time slag inlet volume.

[0014] This specification provides one or more embodiments of a shield tunneling efficiency control device based on composite strata, comprising:

[0015] At least one processor; and,

[0016] A memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores instructions that can be executed by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the above-described method.

[0018] This specification provides one or more embodiments of a non-volatile computer storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured as follows:

[0019] Real-time tunneling parameters and shield equipment parameters of a multi-mode shield tunneling machine are collected. Based on these parameters, the current geological conditions of the shield tunneling machine are determined. The real-time tunneling parameters include total tunneling thrust, cutterhead parameters, tunneling speed, and penetration depth. The tunneling process is predicted based on the current geological conditions and shield equipment parameters to determine the predicted muck discharge information corresponding to the current geological conditions. This predicted muck discharge information includes the predicted muck discharge type and predicted muck discharge volume. Based on the predicted muck discharge information, a corresponding muck removal system is matched, and an initial muck removal control scheme is determined. This initial muck removal control scheme includes... The current slag removal system and its predicted operating parameters are defined. The slag removal system includes either a screw conveyor slag removal system or a slurry circulation slag removal system. The initial slag removal control scheme controls the operation of the current slag removal system and collects real-time slag discharge information from the multi-mode tunnel boring machine. Based on this real-time slag discharge information, the initial slag removal control scheme is adjusted to generate an adjusted slag removal control scheme. This adjusted slag removal control scheme includes an adjusted slag removal system, slag removal operation control parameters for the adjusted slag removal system, and slag transportation parameters. The adjusted slag removal control scheme controls the operation of the adjusted slag removal system, thereby achieving tunnel boring efficiency control for the multi-mode tunnel boring machine.

[0020] The at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects: Through the above technical solutions, the current stratum information during the composite stratum shield tunneling process is identified using the real-time tunneling parameters of the multi-mode shield tunneling equipment. The real-time tunneling parameters are used as the equipment's response to the stratum. By utilizing the different responses of the equipment in different strata, the current stratum information is identified, avoiding differences between different equipment. Utilizing the fixed characteristics of each stratum type ensures the accuracy of stratum identification information, providing an accurate data foundation for subsequent muck discharge prediction. Predicting the muck discharge information of the multi-mode shield tunneling equipment in the form of model prediction ensures... Timely acquisition of slag discharge information can meet the characteristics of slag discharge lag in the shield tunneling process, facilitating timely matching of the slag discharge system and improving slag discharge matching efficiency. By simulating the slag discharge process of the current slag discharge system through numerical simulation, and using the results as the target, the slag discharge operation parameters are derived in reverse, ensuring the accuracy and relevance of the slag discharge operation parameters for each slag discharge system, effectively improving slag discharge efficiency. Adjusting the initial slag discharge control scheme based on real-time slag discharge information during the shield tunneling process can meet the complex and variable geological conditions of composite strata, realizing adaptive adjustment of slag discharge during the shield tunneling process, ensuring slag discharge efficiency in different strata, and further improving shield tunneling efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0022] Figure 1 A flowchart illustrating a shield tunneling efficiency control method based on composite strata, provided as an embodiment of this specification;

[0023] Figure 2 This is a schematic diagram of a shield tunneling efficiency control device based on composite strata, provided as an embodiment of this specification. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments of this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0025] With the continuous development of tunnel construction, tunnel engineering is presenting more complex and varied scenarios, potentially involving complex geological formations. For example, a tunnel section may traverse multiple strata such as hard rock, soft upper rock with hard lower rock, fault fracture zones, and isolated boulders. To address these complex geological conditions, a new type of multi-mode shield tunneling machine (TBM) has emerged, featuring three excavation modes: slurry balance, earth pressure balance, and tunnel boring machine (TBM). This TBM can quickly switch between excavation modes, has two muck removal systems, and is widely applicable to tunnel construction projects with diverse geological conditions.

[0026] During tunnel boring machine (TBM) operation, the machine needs to discharge the excavated soil to continue advancing. If the discharge is obstructed, it can lead to a decrease in the TBM's excavation speed or even shutdown. In TBM operations in complex geological formations, the soil conditions vary depending on the geological conditions. Traditional soil transportation methods are limited by these varying conditions, making it impossible to adjust the discharge process based on real-time TBM conditions. This results in potential problems such as reduced excavation speed and machine shutdowns, ultimately impacting TBM efficiency.

[0027] This specification provides a shield tunneling efficiency control method based on composite strata. It should be noted that the execution entity in this specification embodiment can be a server or any device with data processing capabilities. Figure 1 This schematic diagram illustrates a shield tunneling efficiency control method based on composite strata, provided as an embodiment of this specification. It can be applied to shield tunneling efficiency control systems, such as... Figure 1 As shown, the main steps include the following:

[0028] Step S101: Collect real-time tunneling parameters and shield equipment parameters of the multi-mode shield tunneling equipment, so as to determine the current shield stratum information of the multi-mode shield tunneling equipment through the real-time tunneling parameters of the multi-mode shield tunneling equipment.

[0029] In one embodiment of this specification, multiple data points are collected during the operation of the multi-mode tunnel boring machine (TBM) using pre-set sensors. For example, earth pressure data can be collected using an earth pressure gauge, the cutterhead rotation speed can be collected using a speed sensor, the propulsion cylinder stroke can be collected using a displacement sensor, and the cutterhead hydraulic pressure data can be collected using a hydraulic pressure sensor. Based on the operational data collected by the sensors, real-time tunneling parameters are obtained using existing calculation methods. These real-time tunneling parameters include total tunneling thrust, cutterhead parameters, tunneling speed, and tunnel penetration depth. Cutterhead parameters include cutterhead torque and cutterhead rotation speed. For example, the total tunneling thrust is the sum of various resistances encountered during the tunneling process, obtained by adding multiple propulsion resistances. Furthermore, the TBM parameters refer to the main performance parameters of the multi-mode TBM, such as the number of cutterheads, cutterhead configuration parameters, excavation diameter, cutterhead opening ratio, main drive speed, power, and other parameters used to represent the performance of the TBM.

[0030] The current geological information of the multi-mode shield tunneling equipment is determined by using its real-time tunneling parameters. Specifically, this includes: determining the current geological penetration factor of the multi-mode shield tunneling equipment based on the total tunneling thrust and the tunneling penetration depth in the real-time tunneling parameters, where the current geological penetration factor represents the thrust corresponding to a unit penetration depth in the current geological formation; determining the current shield energy of the multi-mode shield tunneling equipment based on the cutterhead parameters, the total tunneling thrust, and the tunneling speed, where the cutterhead parameters include cutterhead torque and cutterhead rotation speed; determining the current rock volume of the multi-mode shield tunneling equipment based on the cutterhead tunneling radius and the tunneling speed in the cutterhead parameters; determining the current shield consumption factor of the multi-mode shield tunneling equipment based on the current shield capacity and the current rock volume of the tunnel; and determining the current geological information of the multi-mode shield tunneling equipment based on the current geological penetration factor and the current geological consumption factor.

[0031] In one embodiment of this specification, the complex strata involve multiple geological conditions that are complex and variable. Furthermore, due to the limitations of the construction environment of the multi-mode tunnel boring machine (TBM), timely monitoring of geological conditions is impossible during construction in complex strata. During the TBM's tunneling process, real-time tunneling parameters can serve as a response to the geological conditions. These parameters determine the current geological information of the tunnel. The ratio of total thrust to penetration depth in the real-time tunneling parameters is used to determine the current geological penetration factor of the multi-mode TBM. This current geological penetration factor represents the thrust corresponding to a unit penetration depth in the current stratum. It should be noted that penetration depth refers to the depth to which the tunnel body penetrates the soil or rock layer during the TBM's advance, which can be measured by the distance the TBM advances in one revolution of the cutterhead. Generally, if other tunneling parameters are the same, a higher penetration depth indicates lower surrounding rock strength. Therefore, the current geological conditions are characterized by the current geological penetration factor.

[0032] Furthermore, research has found that, with other tunneling parameters remaining constant, the higher the shield cutterhead parameters and the total tunneling thrust, the greater the energy required, indicating a higher rock strength in the strata. Based on the shield cutterhead parameters, the total tunneling thrust, and the tunneling speed, the current shield energy of the multi-mode shield tunneling equipment is determined. The shield cutterhead parameters include cutterhead torque and cutterhead rotation speed. First, the tunneling power is obtained by multiplying the total tunneling thrust and the tunneling speed. Then, the cutting power is obtained by multiplying the shield cutterhead torque and the shield cutterhead rotation speed from the shield cutterhead parameters. The sum of the tunneling power and the cutting power is determined as the current shield energy of the multi-mode shield tunneling equipment. The current tunneling rock volume of the multi-mode shield tunneling equipment is determined based on the cutterhead tunneling radius and tunneling speed from the shield cutterhead parameters, for example, through πR. 2 v is calculated. The current stratum shield consumption factor of the multi-mode shield tunneling equipment is determined by the ratio of the current shield capacity to the current volume of rock being excavated. Based on the current stratum tunneling penetration factor and the current stratum shield consumption factor, the current shield stratum information of the multi-mode shield tunneling equipment is determined.

[0033] Based on the current stratum tunneling penetration factor and the current stratum shield consumption factor, the current shield stratum information of the multi-mode shield tunneling equipment is determined. Specifically, this includes: acquiring the geological distribution information of the shield area of ​​the multi-mode shield tunneling equipment; based on the geological distribution information of the shield area, acquiring multiple historical shield tunneling indicators of the multi-mode shield tunneling equipment, wherein each historical shield tunneling indicator corresponds to multiple distributed strata; based on the multiple historical shield tunneling indicators of the multi-mode shield tunneling equipment, classifying the geological distribution information of the shield area, and determining multiple distributed stratum indicator information, wherein each distributed stratum indicator information corresponds to the shield tunneling capacity of the multi-mode shield tunneling equipment in that distributed stratum, and each distributed stratum indicator information includes a stratum shield consumption factor reference interval and a stratum tunneling penetration factor reference interval; matching the current stratum tunneling penetration factor and the current stratum shield consumption factor with the multiple distributed stratum indicator information to determine the current shield stratum information of the multi-mode shield tunneling equipment.

[0034] In one embodiment of this specification, the geological distribution information of the shield tunneling area of ​​the multi-mode shield tunneling equipment is obtained in advance. Here, the geological distribution information of the shield tunneling area refers to the stratum type in the current shield tunneling area. Due to the characteristic that the shield tunneling process can only move forward and cannot move backward, it is impossible for construction personnel to enter and check the stratum conditions during the construction process. In addition, the stratum conditions in composite strata are complex and variable. The geological distribution information of the shield tunneling area is mostly used for risk prevention work before shield tunneling construction through geological exploration technology. It cannot provide a reference for the stratum information corresponding to the real-time shield tunneling process. However, the geological distribution information of the shield tunneling area in the region can be used to construct the stratum reference index in this region.

[0035] Based on the geological distribution information of the tunnel boring machine (TBM) area, multiple historical TBM indicators for multi-mode TBMs are obtained. These historical indicators correspond to multiple geological strata, including TBM penetration and energy consumption indicators for each stratum type. First, multiple stratum types in the TBM area are identified. Based on statistical analysis methods, multiple historical tunneling parameters for each stratum type are obtained. These historical tunneling parameters refer to the tunneling parameters used by the current multi-mode TBMs when tunneling this stratum type in other TBM processes, ensuring uniformity of the TBMs and avoiding differences between different TBMs. Then, data analysis is performed on the historical tunneling parameters according to the above scheme to obtain the historical TBM penetration and historical energy consumption indicators corresponding to each historical tunneling parameter. Finally, the historical TBM penetration and historical energy consumption indicators for multiple historical tunneling parameters are statistically analyzed to generate reference intervals for stratum TBM energy consumption factors and stratum tunneling penetration factors for each stratum type. Based on the multiple historical shield tunneling indicators of this multi-mode shield tunneling equipment, the geological distribution information of the shield tunneling area is classified to determine multiple distribution stratum indicators. Each of these stratum indicators corresponds to the shield tunneling capacity of the multi-mode shield tunneling equipment in that stratum. Each stratum indicator includes a reference interval for the stratum shield tunneling consumption factor and a reference interval for the stratum tunneling penetration factor. The current stratum tunneling penetration factor is matched with multiple reference intervals to determine its inclusion interval, and the corresponding stratum type is matched. Similarly, the current stratum shield tunneling consumption factor is matched with multiple reference intervals for the stratum tunneling penetration factor from the multiple distribution stratum indicators to determine its inclusion interval, and the corresponding stratum type is matched. The current shield tunneling stratum information of the multi-mode shield tunneling equipment is determined through these two stratum types. Generally, the two stratum types are the same, and this stratum type is used as the current shield tunneling stratum information.

[0036] The above technical solution identifies the current geological information during the shield tunneling process in composite strata by using the real-time tunneling parameters of multi-mode shield tunneling equipment. The real-time tunneling parameters are used as the response of the equipment to the strata. By utilizing the different responses of the equipment in different strata, the current geological information is identified, avoiding the differences between different equipment. By utilizing the fixed characteristics of each stratum type, the accuracy of the geological identification information is ensured, providing an accurate data foundation for subsequent muck removal prediction.

[0037] Step S102: Based on the current shield tunneling stratum information and shield tunneling equipment parameters, predict the shield tunneling process of the multi-mode shield tunneling equipment and determine the predicted slag discharge information corresponding to the current shield tunneling stratum.

[0038] The predicted slag discharge information includes the predicted slag discharge type and the predicted slag discharge volume;

[0039] In one embodiment of this specification, different geological formations reflect different shield tunneling parameters. Similarly, different geological formations produce different properties of excavated soil during the shield tunneling process. Furthermore, the excavated soil is a byproduct of the shield tunneling process; therefore, the changes in excavated soil in composite strata are closely related to the geological formation type.

[0040] Based on the current shield tunneling strata information and the shield tunneling equipment parameters, the shield tunneling process of the multi-mode shield tunneling equipment is predicted to determine the predicted muck discharge information corresponding to the current shield tunneling strata. Specifically, this includes: matching the current shield tunneling strata information in a pre-built strata shield tunneling prediction model library to determine the current strata shield tunneling prediction model corresponding to the current shield tunneling strata; and setting the equipment parameters of the current strata shield tunneling prediction model using the shield tunneling equipment parameters to output the predicted muck discharge type, predicted muck discharge quantity, and predicted muck discharge rate corresponding to the current shield tunneling strata. The predicted muck discharge type includes any one or more of mud-slag mixtures and rock debris particles, and the predicted muck discharge quantity includes the muck discharge quantity for each of the predicted muck discharge types.

[0041] In one embodiment of this specification, a tunnel boring machine (TBM) prediction model for each geological stratum is pre-constructed, and historical muck discharge data corresponding to each geological stratum type is obtained. This historical muck discharge data includes geological information, historical muck discharge parameters, and historical equipment parameters for each historical geological stratum type. A TBM prediction model for each geological stratum type is established using a neural network. The TBM prediction model is trained using the historical muck discharge data to obtain a training-numbered TBM prediction model, which establishes the relationship between muck discharge parameters and equipment parameters. Multiple TBM prediction models corresponding to different geological stratum types are constructed in the above manner, and a TBM prediction model library is built. Based on the current TBM geological stratum information, a match is made in the TBM prediction model library to determine the current TBM prediction model corresponding to the current TBM geological stratum. The shield equipment parameters of the multi-mode shield tunneling equipment are used as input parameters to set the equipment parameters of the shield tunneling prediction model for the current stratum. The model outputs the predicted muck type, predicted muck quantity, and predicted muck speed corresponding to the current shield tunneling stratum. It should be noted that the predicted muck type here includes any one or more of mud-slag mixtures and rock debris particles, and the predicted muck quantity includes the muck quantity of each predicted muck type.

[0042] The above technical solution predicts the slag discharge information of multi-mode shield tunneling equipment in the form of model prediction, which ensures the timeliness of slag discharge information acquisition, meets the characteristics of slag discharge lag in the shield tunneling process, facilitates timely matching of the slag discharge system, and improves the slag discharge matching efficiency.

[0043] Step S103: Based on the predicted slag information, match the corresponding slag discharge system and determine the initial slag discharge control scheme.

[0044] The initial slag discharge control scheme includes the current slag discharge system and the predicted slag discharge operating parameters of the current slag discharge system. The slag discharge system includes either the screw conveyor slag discharge system or the sludge circulation slag discharge system.

[0045] Based on the predicted slag discharge information, a corresponding slag discharge system is matched to determine the initial slag discharge control scheme. Specifically, this includes: obtaining the predicted slag discharge type from the predicted slag discharge information; matching the predicted slag discharge type with a pre-built slag discharge matching table to determine the current slag discharge system corresponding to the predicted slag discharge type; the slag discharge matching table includes multiple slag discharge types and suggested slag discharge systems for each type; numerically simulating the slag discharge process of the current slag discharge system based on the predicted slag discharge volume and predicted slag discharge rate from the predicted slag discharge information to determine the simulated slag discharge process of the current slag discharge system; and adjusting the operating parameters of the current slag discharge system using slag discharge efficiency as the optimization objective during the simulated slag discharge process to determine the predicted slag discharge operating parameters of the current slag discharge system.

[0046] In one embodiment of this specification, after obtaining the predicted slag discharge information, it is necessary to match the predicted slag discharge information with the slag removal system. Two slag removal systems are configured in the multi-mode tunnel boring machine: a screw conveyor slag removal system and a slurry circulation slag removal system. Different slag removal systems are suitable for different slag discharge types. The slurry circulation slag removal system has a fast slag removal speed and good continuity, reducing the amount of transported by train cars. Generally, when the slag discharge type contains a mixture of slurry and slag, it is recommended to use the slurry circulation slag removal system. If there is no mixture of slurry and slag, it is recommended to use the screw conveyor slag removal system. Alternatively, a recommended slag removal system can be set for each slag discharge type according to actual slag removal requirements. A slag removal matching table is constructed using the recommended slag removal systems for each slag discharge type. The predicted slag discharge type is matched with the slag removal matching table to determine the current slag removal system corresponding to the predicted slag discharge type.

[0047] Based on the predicted slag type, predicted slag volume, and predicted slag velocity from the predicted slag discharge information, a numerical simulation of the current slag discharge process is performed to determine the simulated slag discharge process of the current slag discharge system. It should be noted that the numerical simulation of the slurry-water circulation slag discharge system can be modeled using fluid dynamics and discrete element theory. First, the slag discharge fluid is simulated using a fluid dynamics model to calculate the force situation of the slag particles under the action of the fluid. Then, the kinematic equations of the slag particles are solved using discrete element theory to update the position, velocity, etc., of each slag particle. The position and velocity information of the slag particles here reflects the slag discharge efficiency of the slurry-water circulation slag discharge system. With slag discharge efficiency as the priority objective, the slag discharge operating parameters in the simulated slag discharge process are adjusted and optimized to obtain matching predicted slag discharge operating parameters. The modeling process of the screw conveyor slag discharge system can be simulated using the discrete element method. A three-dimensional simulation model is established using a contact model between rock slag particles, and the slag discharge process is simulated using this three-dimensional simulation model. Similarly, with slag discharge efficiency as the optimization objective, the operating parameters of the current slag discharge system are adjusted to determine the predicted slag discharge operating parameters of the current slag discharge system. Furthermore, the slag removal efficiency here can be determined based on construction requirements.

[0048] The above technical solution uses numerical simulation to simulate the slag discharge process of the current slag discharge system. With the result as the objective, the slag discharge operation parameters are derived by reverse calculation, which ensures the accuracy and specificity of the slag discharge operation parameters for each slag discharge system and effectively improves the slag discharge efficiency.

[0049] Step S104: Control the operation of the current slag discharge system through the initial slag discharge control scheme, collect real-time slag discharge information of the multi-mode shield tunneling equipment, and adjust the initial slag discharge control scheme based on the real-time slag discharge information to generate an adjusted slag discharge control scheme.

[0050] In one embodiment of this specification, an initial slag discharge control scheme is used to control the operation of the current slag discharge system and collect real-time slag discharge information from the multi-mode tunnel boring machine. This real-time slag discharge information refers to the actual slag discharge situation. Based on the real-time slag discharge information, the initial slag discharge control scheme is adjusted to generate an adjusted slag discharge control scheme. This adjusted slag discharge control scheme includes any one or more of the following: an adjusted slag discharge system, slag discharge operation control parameters of the adjusted slag discharge system, and slag transportation parameters.

[0051] When the current slag discharge system is a slurry circulation slag discharge system, the system determines whether the switching conditions are met by using multiple real-time slag parameters in the real-time slag discharge information. These real-time slag parameters include slag particle size. When the current slag discharge system is a screw conveyor slag discharge system, the system determines whether the switching conditions are met by using the real-time slag discharge type in the real-time slag discharge information. If the switching conditions are met, the slag discharge system is switched, and the slag discharge operation control parameters and slag transportation parameters of the slag discharge system are adjusted accordingly.

[0052] Based on the real-time slag discharge information, the initial slag discharge control scheme is adjusted to generate an adjusted slag discharge control scheme. Specifically, this includes: acquiring the real-time slag discharge information, which includes the real-time slag discharge type and multiple real-time slag parameters, including slag particle size; when the current slag discharge system is a slurry-water circulation slag discharge system, monitoring the multiple slag particle sizes and determining the amount of slag particles larger than a preset particle size threshold; when the slag amount meets a preset slag discharge switching threshold, switching the current slag discharge system in the initial slag discharge control scheme to determine the adjusted slag discharge system; based on the adjusted slag discharge system and the actual slag discharge volume and actual slag discharge speed in the real-time slag discharge information, determining the simulated slag discharge process of the adjusted slag discharge system to determine the slag discharge operation control parameters and the slag generation parameters to be transported; and using the slag generation parameters, determining the slag transport parameters for the slag transport vehicles, including the number of slag transport vehicles transported per trip.

[0053] In one embodiment of this specification, since a slurry-slag mixture is selected whenever it exists, a slurry-water circulation slag discharge system is used. However, in this case, there is a risk of pipe blockage if the slag particles are large. Therefore, when the current slag discharge system is a slurry-water circulation system, real-time slag discharge information needs to be obtained. This real-time slag discharge information includes the real-time slag discharge type and multiple real-time slag parameters. These parameters are monitored to determine whether to switch the slag discharge system. Multiple slag particle sizes are monitored, and the amount of slag particles larger than a preset particle size threshold is determined. When the amount of slag larger than the particle size threshold meets the preset slag discharge switching threshold, the current slag discharge system in the initial slag discharge control scheme is switched to determine the adjustment of the slag discharge system, i.e., the screw conveyor slag discharge system. It should be noted that both the preset particle size threshold and the preset slag discharge switching threshold can be set according to the system structure of the slurry-water circulation slag discharge system. Based on the actual slag discharge volume and speed from the adjusted slag discharge system and the real-time slag discharge information, the simulated slag discharge process of the adjusted slag discharge system is determined. Following the above method, with slag discharge efficiency as the optimization objective, the slag discharge operation control parameters of the adjusted slag discharge system corresponding to the optimal slag discharge efficiency are determined, and the parameters for the amount of slag to be transported under these control parameters are also determined. Using these slag generation parameters, the slag transport parameters for the slag transport vehicles are determined, including the quantity of slag transported by each vehicle in a single trip.

[0054] When the current slag removal system is a screw conveyor system, the real-time slag type is acquired from the real-time slag discharge information and monitored to determine whether to switch the slag removal system. When a mixture of mud and slag appears in the real-time slag discharge type, the system is switched to a slurry-water circulation slag removal system. Based on the actual slag discharge volume and speed from the slurry-water circulation slag removal system and the real-time slag discharge information, the simulated slag removal process of the slurry-water circulation slag removal system is determined. Using slag removal efficiency as the optimization objective, the slag removal operation control parameters of the slurry-water circulation slag removal system corresponding to the optimal slag removal efficiency are determined.

[0055] By using the above technical solutions, the initial slag discharge control scheme can be adjusted based on the real-time slag discharge information during the tunnel boring process. This can meet the complex and varied geological conditions of composite strata, realize the adaptive adjustment of slag discharge during the tunnel boring process, ensure the slag discharge efficiency in different strata, and further improve the tunnel boring efficiency.

[0056] Step S105: By adjusting the slag discharge control scheme, the operation of the slag discharge system is controlled and adjusted to achieve shield efficiency control of multi-mode shield tunneling equipment.

[0057] In one embodiment of this specification, the slag discharge control scheme is adjusted to control the slag discharge system. The slag discharge system is controlled to discharge slag according to the slag discharge operation control parameters. The optimal slag discharge efficiency of the slag discharge system is ensured by the slag discharge operation control parameters, which further improves the shield tunneling efficiency of the multi-mode shield tunneling equipment.

[0058] After controlling the operation of the adjusted slag discharge system using the adjusted slag discharge control scheme, the method further includes: collecting real-time slag discharge information of the adjusted slag discharge system, wherein the real-time slag discharge information includes real-time slag inflow and real-time slag outflow; monitoring the adjusted slag discharge system using the real-time slag discharge information to determine the real-time slag discharge capacity factor of the adjusted slag discharge system; constructing a slag discharge capacity evolution curve of the real-time slag discharge capacity factor, so as to adjust the real-time operating parameters of the adjusted slag discharge system using the slag discharge capacity evolution curve and a pre-constructed slag discharge capacity threshold, wherein the real-time operating parameters include the conveyor shaft speed or the mud pump power.

[0059] In one embodiment of this specification, to ensure the continuous and efficient slag removal process, it is necessary to monitor the real-time slag removal status of the slag removal system. First, based on the adjustment of the slag removal system, real-time slag removal information is collected, including real-time slag inflow and outflow. By monitoring the adjusted slag removal system using this real-time slag removal information, the real-time slag removal capacity factor of the adjusted slag removal system is determined.

[0060] By using the real-time slag discharge information, the slag discharge adjustment system is monitored to determine the real-time slag discharge capacity factor of the slag discharge adjustment system. Specifically, this includes: determining the actual slag discharge volume of the slag discharge adjustment system by using the real-time slag inlet volume and the real-time slag outlet volume in the real-time slag discharge information; and determining the real-time slag discharge capacity factor of the slag discharge adjustment system based on the actual slag discharge volume and the real-time slag inlet volume.

[0061] In one embodiment of this specification, the actual slag discharge volume of the slag discharge system is determined by the difference between the real-time slag inlet volume and the real-time slag outlet volume in the real-time slag discharge information; and the real-time slag discharge capacity factor of the slag discharge system is determined based on the ratio of the actual slag discharge volume to the real-time slag inlet volume.

[0062] In one embodiment of this specification, a slag discharge capacity evolution curve of the real-time slag discharge capacity factor is constructed. In the slag discharge capacity evolution curve, the vertical axis represents the real-time slag discharge capacity factor, and the horizontal axis represents the acquisition time of the real-time slag discharge information corresponding to the real-time slag discharge capacity factor. The real-time operating parameters of the slag discharge system are adjusted using the slag discharge capacity evolution curve and a pre-constructed slag discharge capacity threshold. These real-time operating parameters include the conveyor shaft speed or the mud pump power. It should be noted that the slag discharge capacity threshold here can be a specific numerical value. When the slag discharge capacity evolution curve is lower than the reference line corresponding to the specific value, it indicates a decrease in slag discharge capacity. In this case, optimization can be achieved by adjusting the real-time operating parameters of the slag discharge system to ensure slag discharge efficiency.

[0063] The above technical solution identifies the current geological information during the shield tunneling process in composite strata by utilizing real-time tunneling parameters of multi-mode shield tunneling equipment. These real-time tunneling parameters serve as the equipment's response to the geological formation. By leveraging the different responses of the equipment in different geological formations, the current geological information is identified, avoiding inconsistencies between different equipment. The fixed characteristics of each geological type ensure the accuracy of geological identification information, providing a reliable data foundation for subsequent muck discharge prediction. Furthermore, the muck discharge information of the multi-mode shield tunneling equipment is predicted using a model, ensuring the timeliness of muck discharge information acquisition and meeting the requirements of shield tunneling. The delayed slag discharge characteristic during the tunneling process facilitates timely matching of the slag discharge system, improving slag discharge matching efficiency. Numerical simulation is used to model the slag discharge process of the current system, and the results are used to deduce the slag discharge operating parameters, ensuring the accuracy and relevance of the parameters for each system and effectively improving slag discharge efficiency. Adjustments to the initial slag discharge control scheme are made using real-time slag discharge information during the tunneling process, meeting the complex and varied geological conditions of composite strata. This enables adaptive adjustments to slag discharge during the tunneling process, ensuring slag discharge efficiency in different strata and further improving tunneling efficiency.

[0064] This specification also provides an embodiment of a shield tunneling efficiency control device based on composite strata, such as... Figure 2 As shown, the device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the above-described method.

[0065] This specification also provides a non-volatile computer storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured as follows:

[0066] Real-time tunneling parameters and shield equipment parameters of a multi-mode shield tunneling machine are collected. The current geological conditions of the shield tunneling machine are determined using these real-time tunneling parameters, which include total tunneling thrust, cutterhead parameters, tunneling speed, and penetration depth. Based on this current geological conditions and shield equipment parameters, the tunneling process of the multi-mode shield tunneling machine is predicted to determine the predicted muck discharge information corresponding to the current geological conditions. This predicted muck discharge information includes the predicted muck discharge type and the predicted muck discharge volume. Based on this predicted muck discharge information, a corresponding muck removal system is matched, and an initial muck removal control scheme is determined. This includes the current slag removal system and its predicted operating parameters. The slag removal system can be either a screw conveyor slag removal system or a slurry circulation slag removal system. The initial slag removal control scheme controls the operation of the current slag removal system and collects real-time slag discharge information from the multi-mode tunnel boring machine. Based on this real-time slag discharge information, the initial slag removal control scheme is adjusted to generate an adjusted slag removal control scheme. This adjusted slag removal control scheme includes an adjusted slag removal system, its slag removal operation control parameters, and slag transportation parameters. The adjusted slag removal control scheme controls the operation of the adjusted slag removal system, thereby achieving tunnel boring efficiency control for the multi-mode tunnel boring machine.

[0067] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the embodiments of apparatus, devices, and non-volatile computer storage media are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0068] The devices, media, and methods provided in the embodiments of this specification are one-to-one correspondences. Therefore, the devices and media also have similar beneficial technical effects as their corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the devices and media will not be repeated here.

[0069] Those skilled in the art will understand that embodiments of this specification can be provided as methods, systems, or computer program products. Therefore, this specification may take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this specification may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0070] This specification is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this specification. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0071] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0072] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0073] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0074] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0075] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0076] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0077] The above description is merely one or more embodiments of this specification and is not intended to limit this specification. Various modifications and variations can be made to the one or more embodiments of this specification by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of one or more embodiments of this specification should be included within the scope of the claims of this specification.

Claims

1. A method for controlling shield tunneling efficiency based on composite strata, characterized in that, The method includes: Real-time tunneling parameters and shield equipment parameters of a multi-mode shield tunneling equipment are collected to determine the current shield formation information of the multi-mode shield tunneling equipment through the real-time tunneling parameters of the multi-mode shield tunneling equipment. The real-time tunneling parameters include total tunneling thrust, shield cutterhead parameters, tunneling speed, and tunneling penetration. Based on the current shield tunneling stratum information and the shield tunneling equipment parameters, the shield tunneling process of the multi-mode shield tunneling equipment is predicted to determine the predicted muck discharge information corresponding to the current shield tunneling stratum. The predicted muck discharge information includes the predicted muck discharge type and the predicted muck discharge amount. Based on the predicted slag information, a corresponding slag discharge system is matched, and an initial slag discharge control scheme is determined. The initial slag discharge control scheme includes the current slag discharge system and the predicted slag discharge operating parameters of the current slag discharge system. The slag discharge system includes either a screw conveyor slag discharge system or a sludge circulation slag discharge system. The initial slag discharge control scheme controls the operation of the current slag discharge system and collects real-time slag discharge information of the multi-mode shield tunneling equipment. Based on the real-time slag discharge information, the initial slag discharge control scheme is adjusted to generate an adjusted slag discharge control scheme. The adjusted slag discharge control scheme includes an adjusted slag discharge system, slag discharge operation control parameters of the adjusted slag discharge system, and slag transportation parameters. By adjusting the slag discharge control scheme, the operation of the slag discharge system is controlled, thereby achieving shield efficiency control of the multi-mode shield tunneling equipment.

2. The method of claim 1, wherein, The current geological information of the multi-mode shield tunneling equipment is determined by using its real-time tunneling parameters, specifically including: The current stratum tunneling penetration factor of the multi-mode shield tunneling equipment is determined by the total tunneling thrust and the tunneling penetration depth in the real-time tunneling parameters, wherein the current stratum tunneling penetration factor is used to represent the thrust corresponding to a unit penetration depth in the current stratum; The current shield energy of the multi-mode shield tunneling equipment is determined based on the shield cutterhead parameters, the total tunneling thrust, and the tunneling speed, wherein the shield cutterhead parameters include cutterhead torque and cutterhead rotation speed; Based on the cutterhead excavation radius and the excavation speed in the shield cutterhead parameters, the current excavated rock volume of the multi-mode shield tunneling equipment is determined; The current stratum shield consumption factor of the multi-mode shield tunneling equipment is determined by the current shield tunneling capacity and the current volume of rock being excavated. Based on the current stratum tunneling penetration factor and the current stratum shield consumption factor, the current shield stratum information of the multi-mode shield tunneling equipment is determined.

3. The method of claim 2, wherein, Based on the current stratum tunneling penetration factor and the current stratum shield consumption factor, the current shield stratum information of the multi-mode shield tunneling equipment is determined, specifically including: The geological distribution information of the shield tunneling area of ​​the multi-mode shield tunneling equipment is obtained, and based on the geological distribution information of the shield tunneling area, multiple historical shield tunneling indicators of the multi-mode shield tunneling equipment are obtained, wherein the historical shield tunneling indicators correspond to multiple distributed strata. Based on the multiple historical shield tunneling indicators of the multi-mode shield tunneling equipment, the geological distribution information of the shield tunneling area is classified to determine multiple distribution stratum index information. Each distribution stratum index information corresponds to the shield tunneling capacity of the multi-mode shield tunneling equipment in the distribution stratum. Each distribution stratum index information includes a stratum shield tunneling consumption factor reference interval and a stratum tunneling penetration factor reference interval. The current stratum tunneling penetration factor and the current stratum shield consumption factor are matched with the multiple distributed stratum index information to determine the current shield stratum information of the multi-mode shield tunneling equipment.

4. The method of claim 1, wherein, Based on the current shield tunneling strata information and the shield tunneling equipment parameters, the shield tunneling process of the multi-mode shield tunneling equipment is predicted to determine the predicted muck discharge information corresponding to the current shield tunneling strata, specifically including: Based on the current shield tunneling stratum information, a matching process is performed in a pre-built stratum shield tunneling prediction model library to determine the current stratum shield tunneling prediction model corresponding to the current shield tunneling stratum. The shield tunneling equipment parameters are used to set the equipment parameters of the current stratum shield tunneling prediction model, so as to output the predicted muck type, predicted muck quantity and predicted muck speed corresponding to the current shield tunneling stratum. The predicted muck type includes any one or more of mud-slag mixture and rock debris particles, and the predicted muck quantity includes the muck quantity of each of the predicted muck types.

5. The method of claim 1, wherein, Based on the predicted slag discharge information, a corresponding slag discharge system is matched, and an initial slag discharge control scheme is determined, specifically including: Obtain the predicted slag type from the predicted slag information, match the predicted slag type with a pre-built slag matching table, and determine the current slag discharge system corresponding to the predicted slag type. The slag matching table includes multiple slag types and a suggested slag discharge system corresponding to each slag type. Based on the predicted slag discharge volume and predicted slag discharge rate in the predicted slag discharge information, the slag discharge process of the current slag discharge system is numerically simulated to determine the simulated slag discharge process of the current slag discharge system. In the simulated slag discharge process, the slag discharge efficiency is used as the optimization target, and the operating parameters of the current slag discharge system are adjusted to determine the predicted slag discharge operating parameters of the current slag discharge system.

6. The method of claim 5, wherein, Based on the real-time slag discharge information, the initial slag discharge control scheme is adjusted to generate an adjusted slag discharge control scheme, specifically including: The real-time slag discharge information is obtained, wherein the real-time slag discharge information includes real-time slag discharge type and multiple real-time slag parameters, wherein the real-time slag parameters include slag particle size. When the current slag discharge system is a sludge-water circulation slag discharge system, the particle size of multiple slag particles is monitored, and the amount of slag particles larger than the preset particle size threshold is determined. When the amount of slag meets the preset slag discharge switching threshold, the current slag discharge system in the initial slag discharge control scheme is switched to determine the adjustment of the slag discharge system; Based on the actual slag discharge volume and actual slag discharge speed in the adjusted slag discharge system and the real-time slag discharge information, the simulated slag discharge process of the adjusted slag discharge system is determined, so as to determine the slag discharge operation control parameters of the adjusted slag discharge system and the slag and soil generation parameters to be transported. Based on the soil and waste generation parameters, the soil and waste transportation parameters of the soil and waste transport vehicles are determined, wherein the soil and waste transportation parameters include the quantity transported by the soil and waste transport vehicles in a single trip.

7. The method of claim 1, wherein, After controlling the operation of the slag discharge system through the aforementioned slag discharge control scheme, the method further includes: According to the aforementioned slag discharge system, real-time slag discharge information of the aforementioned slag discharge system is collected, wherein the real-time slag discharge information includes real-time slag inflow and real-time slag outflow. The real-time slag discharge information is used to monitor the slag discharge adjustment system and determine the real-time slag discharge capacity factor of the slag discharge adjustment system. A slag discharge capacity evolution curve is constructed for the real-time slag discharge capacity factor. The real-time operating parameters of the slag discharge system are adjusted by using the slag discharge capacity evolution curve and a pre-constructed slag discharge capacity threshold. The real-time operating parameters include the conveyor shaft speed or the mud pump power.

8. The method of claim 7, wherein, By monitoring the real-time slag discharge information, the real-time slag discharge capacity factor of the adjusted slag discharge system is determined, specifically including: The actual slag discharge volume of the adjusted slag discharge system is determined by using the real-time slag inlet volume and the real-time slag outlet volume in the real-time slag discharge information. The real-time slag discharge capacity factor of the slag discharge system is determined based on the actual slag discharge volume and the real-time slag inlet volume.

9. A shield efficiency control device based on a composite ground, characterized by, The device includes: At least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method as described in any one of claims 1-8.

10. A non-volatile computer storage medium storing computer-executable instructions, characterized in that, The computer-executable instructions are set as follows: Real-time tunneling parameters and shield equipment parameters of a multi-mode shield tunneling equipment are collected to determine the current shield formation information of the multi-mode shield tunneling equipment through the real-time tunneling parameters of the multi-mode shield tunneling equipment. The real-time tunneling parameters include total tunneling thrust, shield cutterhead parameters, tunneling speed, and tunneling penetration. Based on the current shield tunneling stratum information and the shield tunneling equipment parameters, the shield tunneling process of the multi-mode shield tunneling equipment is predicted to determine the predicted muck discharge information corresponding to the current shield tunneling stratum. The predicted muck discharge information includes the predicted muck discharge type and the predicted muck discharge amount. Based on the predicted slag information, a corresponding slag discharge system is matched, and an initial slag discharge control scheme is determined. The initial slag discharge control scheme includes the current slag discharge system and the predicted slag discharge operating parameters of the current slag discharge system. The slag discharge system includes either a screw conveyor slag discharge system or a sludge circulation slag discharge system. The initial slag discharge control scheme controls the operation of the current slag discharge system and collects real-time slag discharge information of the multi-mode shield tunneling equipment. Based on the real-time slag discharge information, the initial slag discharge control scheme is adjusted to generate an adjusted slag discharge control scheme. The adjusted slag discharge control scheme includes an adjusted slag discharge system, slag discharge operation control parameters of the adjusted slag discharge system, and slag transportation parameters. By adjusting the slag discharge control scheme, the operation of the slag discharge system is controlled, thereby achieving shield efficiency control of the multi-mode shield tunneling equipment.

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