638 results about "Shield machine" patented technology

The invention relates to a geological radar advanced forecasting system for TBM shield construction and a detection method, which are characterized in that a transmitting antenna and a receiving antenna are arranged in a tool bit gap of a TBM shield machine, rotation of a tool bit is not affected, measurement can be carried out when the tool bit rotates, and a three-dimensional structure section right in front of the tool bit is further acquired; a method of forming obvious reflection based on geological body physical property dielectric constant difference is adopted, the TBM shield tunneling advancing direction is detected and imaged, a geological structure image is obtained, then geological information such as faults, rich water, cavities and boulders is provided, the influence of geological difference is small, and testing is more accurate compared with a seismic wave method; the receiving antenna and the transmitting antenna are arranged in the tool bit gap of the TBM, the receiving antenna and the transmitting antenna are not affected by the blade, rotation of the tool bit is not affected, and stability and accuracy of rotation measurement of the whole set of forecasting system can be guaranteed.

The invention discloses a shield tunnel ground penetrating radar one-transmitting-multi-receiving antenna array advanced detection system, which comprises a terminal processor and a one-transmitting-multi-receiving antenna array, the terminal processor is connected with the one-transmitting-multi-receiving antenna array through a coaxial cable, the one-transmitting-multi-receiving antenna array comprises a transmitting antenna and a plurality of receiving antennas, and the transmitting antenna is connected with the receiving antennas. The shield cutter heads are arranged in the radial direction of the shield cutter head, are fixed on the same radius of the shield cutter head and cover the radius of the whole shield cutter head; the shield cutterhead rotates to cut a front soil body, the terminal processor controls the one-transmitting-multiple-receiving antenna array to synchronously carry out advanced detection, the one-transmitting-multiple-receiving antenna array rotates along with the shield cutterhead to detect a circle, the transmitting antennas radiate electromagnetic waves once at fixed angle intervals, and the multiple receiving antennas record reflected electromagnetic echo signals of a front stratum once at the same time. And the one-transmitting multi-receiving antenna array follows the shield tunneling machine to gradually tunnel so as to detect obstacles in the whole tunnel excavation section. The method has the advantages of large detection range, high detection efficiency and clear detection result.

The invention relates to a shield tunneling machine tunneling construction method for stratums with different sand contents, which comprises the following steps of: S1, investigating characteristic parameters, including types, sand contents and mechanical parameters, of stratums to be tunneled; s2, installing an ultrasonic-assisted hob system integrated with an ultrasonic excitation module; s3, ultrasonic parameters and shield tunneling parameters are set according to the characteristic parameters of the stratum; and S4, shield tunneling is started, ultrasonic parameters and shield tunneling parameters are adjusted in real time through the cooperative control module, vibration, hob abrasion and mud cake forming conditions in the construction process are monitored, and in the tunneling process, the operation mode of the cooperative control module is that on the basis of multi-dimensional monitoring data collected by a vibration sensor, an abrasion detection device and a slag sample analysis sensor, the ultrasonic parameters and the shield tunneling parameters are adjusted in real time. Parameters are dynamically adjusted according to stratum types and sensitive area requirements, the single adjustment amplitude and adjacent adjustment intervals of the parameters are controlled, the adjustment effect is verified in real time through a sensor, and closed-loop control over parameter adjustment and monitoring is formed.

The invention discloses a shield tunneling machine cutter wear prediction method and device and a medium, and relates to the field of shield tunnel construction equipment monitoring, and the method comprises the steps: obtaining multi-source monitoring data in a shield tunneling machine construction process, carrying out the fusion of the multi-source monitoring data, extracting a core feature vector, and constructing a feature data set; based on the feature data set, through a pre-trained time sequence prediction model, generating a tool wear prediction result sequence corresponding to continuous time points in a future preset construction period; the prediction result sequence comprises a predicted abrasion loss sequence and a predicted abrasion rate sequence; matching the prediction result sequence with a preset multi-level early warning rule, determining a current early warning level, and generating a corresponding early warning signal; and outputting a construction parameter adjustment instruction and a tool changing planning suggestion through a parameter adjustment engine corresponding to the early warning level based on the prediction result sequence. By fusing the multi-source monitoring data and constructing the time sequence prediction model, the accuracy and foresight of tool wear prediction are remarkably improved.

The invention relates to the technical field of shield tunneling machine construction, in particular to a shield tunneling machine settlement control method which comprises the steps that the maximum pressure and the minimum pressure of a shield tunneling machine in an undercrossing subway tunnel section are calculated according to the burial depth and geological data, and when the shield tunneling machine conducts tunneling, the notch pressure of an excavation face is monitored according to the maximum pressure and the minimum pressure; in the tunneling process of the underpass subway tunnel section, the tunneling speed and the unearthing amount of a shield tunneling machine are monitored, meanwhile, grouting is conducted through radial holes in a shield shell by adopting a plastic material, and a gap, caused by excavation, between a soil body and the shield shell is filled; and when the shield tunneling machine tunnels to the granite layer, slurry injection parameters are controlled. According to the scheme, the safety and reliability of the construction process can be effectively controlled, the construction settlement condition is effectively controlled, it is guaranteed that the safety of the subway tunnel and the surrounding ground is effectively guaranteed, and related potential safety hazards are eliminated.

The invention belongs to the technical field of intelligent shield construction, and particularly discloses a shield tunneling machine posture multi-step prediction and deviation correction control method based on latent variable enhanced Free Transform. Firstly, shield construction process data are obtained, and a control quantity set is established and preprocessed; error features, change rate features and unit mileage features are constructed based on the preprocessed data, and a feature sequence is formed after normalization; organizing the sequence into a token sequence with a single time step, and inputting the token sequence into a pre-trained Free Transform model after position and mileage coding; the model aggregates complete sequence information through a non-causal encoder dedicated block, calculates latent variable distribution parameters based on a hidden state sequence, samples to obtain latent variables, maps the latent variables into conditional vectors and broadcasts the conditional vectors to a decoding path; and finally, outputting a future shield attitude vector, an over-threshold probability and a recommended control quantity in parallel by a multi-task output head. According to the method, working condition self-adaptive multi-step prediction and deviation correction are realized, and the safety and intelligent level of shield construction can be improved.

The invention relates to a shield tunnel settlement control reinforcement method based on multi-source data fusion driving, which comprises the following steps: S1, data acquisition: acquiring multi-source heterogeneous original data through a sensor network and database interface deployed in a shield tunneling machine and a construction area; s2, data preprocessing; s3: big data analysis modeling: comprising the following sub-steps: S31: normalizing physical significance; s32, carrying out model training; s4, real-time settlement risk assessment: predicting future settlement volume and dividing risk levels to obtain a risk assessment report; s5, intelligent reinforcement decision and execution: parameters of grouting equipment or a shield tunneling machine are controlled for real-time reinforcement; and the reinforced effect data is fed back to the step S1 to form closed-loop control. Compared with the prior art, the method has the advantages that the accuracy, robustness and physical interpretability of the settlement prediction model are improved, high precision and self-optimization of the prediction model are realized, and active and accurate intervention, high integration, self-optimization and the like are realized.

The application discloses a kind of single blade cutter automatic detection system of shield machine, belong to shield machine cutter technical field.A kind of single blade cutter automatic detection system of shield machine, including rack, the rack is sequentially provided with air-tightness detection module, solid and liquid lubricant adding module, cutter running module, torque detection module, laser welding module, laser coding module and slide table assembly, the cutter body is fixed on the slide table assembly, and slide table assembly controls cutter body moving position.A kind of single blade cutter automatic detection system of shield machine of the application, from air-tightness test to laser coding whole process does not need manual intervention, detection efficiency is improved, slide table assembly is accurately positioned, five big module sequential operation, single piece detection time is shortened, air-tightness detection is with the double-end dynamic sealing of lower end sealing cavity and upper end sealing cavity, sealing is good, detection precision is high;Particularly set conical clamping block, insert bar and clearance hole staggered engagement, adaptive cutter ring diameter.

The shield tunneling machine dual-slurry injection anti-reverse structure provided by this invention includes a diversion block fixed inside the rear shield shell plate. The diversion block has a flow channel connecting liquid hole A and liquid pipe B. By making the flow channel pass through both ends of the diversion block along its length, the flow channel includes coaxially arranged inlet and outlet sections, as well as multiple annular flow channels connected in series between the inlet and outlet sections. Each annular flow channel includes an inclined section and a semi-annular section bypassing both ends of the inclined section. The inclined sections of adjacent annular flow channels have opposite inclination directions, and the semi-annular sections of adjacent annular flow channels are located on both sides of the axis of the inlet section, making the semi-annular sections teardrop-shaped. This allows the flow channel to form a Tesla flow channel with anti-reverse function, thus taking into account both diversion and anti-reverse functions. The structure is simple, has low manufacturing cost, high structural strength, can resist the impact of propulsion cylinder support shoes, is easy to disassemble and assemble, and has stronger buffering effect of anti-reverse effect, which can reduce the probability of blockage. After blockage, multiple methods can be used to clear it, and the handling flexibility is better.

The application belongs to the technical field of shield construction, and discloses a method and system for early warning of settlement trend of shield construction crossing a dam; the method comprises the following steps: collecting silt layer geological data before the shield crosses the dam, and analyzing to obtain the distribution range and sensitivity level of the silt layer; collecting the tunneling parameters in real time in units of each ring when the shield machine crosses the silt layer section, and analyzing to obtain the disturbance index; collecting the real-time tunneling speed and the cutter head rotating speed, and recording the shutdown parameters when the complete shutdown condition is met; collecting the slurry tank pressure and the shutdown duration during shutdown, and calculating the pressure data; for the current sensitivity level, the preset hierarchical early warning rule is adopted, the current disturbance index basic threshold is corrected to obtain the corresponding dynamic threshold, the pressure data is compared with the dynamic threshold, and the early warning is issued according to the preset trigger logic classification; and the application improves the safety of shield construction crossing the dam.

The invention relates to the technical field of mining and mineral processing, and particularly discloses a cooperative control method and system for online cutter replacement of a shield tunneling machine. The method comprises the steps that multi-source sensing data are fused and analyzed through an artificial intelligence model, and online intelligent diagnosis and automatic tool changing decision making of the tool abrasion state are achieved; in response to the decision, automatically adjusting tunneling parameters to enable the shield tunneling machine to enter a machine stabilizing state, and controlling a cutterhead to perform high-precision indexing system rotary positioning and physical locking according to the decision; an environment-resistant special mechanical arm is controlled to execute automatic tool changing operation, and the action state of the mechanical arm drives the shield tail grouting system to finely adjust the pressure in real time through feedforward control so as to actively offset operation disturbance; and automatic double verification of the installation quality is completed through a torque sensor and machine vision. According to the method, the full-process automation of tool changing from intelligent sensing, decision making to cooperative execution is realized, personnel are liberated from a high-risk tool changing environment, and meanwhile, the stability of an excavation face and a segmental lining during automatic tool changing operation is ensured.

The invention relates to a single-hole double-track tunnel mid-partition wall construction method, which is based on synchronous construction of tunnel shield, bow-shaped piece installation and flue plate installation, and comprises the following steps: S1, carrying out mid-partition wall position lofting in an area where a bow-shaped piece is installed behind a shield tunneling machine, and completing steel bar planting operation of a mid-partition wall; s2, a movable door type steel platform is used for binding reinforcing steel bars of the mid-partition wall along the embedded reinforcing steel bars on the bow-shaped piece; s3, top flue plates at the corresponding positions are installed synchronously by means of the movable door type steel platform, and steel bars at the corresponding positions of the top of the middle partition wall are connected with the flue plate embedded connectors; during shield tunneling construction, the movable door type steel platform and the steel mould trolley are synchronously used for construction of the mid-partition wall, and while transportation of a construction vehicle is not affected, concrete pouring of the mid-partition wall is conducted from the upper portion of the flue plate in a pumping mode, so that synchronous construction of the mid-partition wall and shield tunneling is completed; the purpose of improving the middle partition wall construction efficiency is achieved.

This invention relates to the field of tunnel construction technology, specifically to a method, medium, and equipment for judging and correcting abnormal strain signals in tunnel boring machines (TBMs). The method includes the following steps: simulating the mechanical response of the main drive structure under theoretically rated external load conditions; selecting strain measurement point locations based on the simulation results; deploying strain sensors at the selected locations on the actual TBM, and then performing threshold judgment on the strain signals collected by the strain sensors. If the signal of the strain measurement point channel exceeds the threshold, the channel is deemed to be faulty; if the signal of the strain measurement point channel does not exceed the threshold, a secondary judgment is performed using the same channel of its symmetrical measurement points; and a mapping model between equipment operating parameters and strain signals is established based on historical data from the strain measurement point channels. This invention avoids the interruption of operation of the digital twin system due to signal loss, greatly improving the system's continuous operation capability in harsh engineering environments.

The invention discloses a TBM tunneling geological condition intelligent identification method and system fused with multiple modes. The method and system are used for identifying various geological condition scenes faced by a shield tunneling machine TBM during construction. The method comprises the steps that muck images and parameter information data are collected based on a shield tunneling machine industrial camera system and a sensor network, and data preprocessing operation is carried out; based on the collected data information, an improved Swin Transform model is provided, and multi-modal input of muck images and TBM parameters is fused; an improved multi-modal fusion model Swinin-T-M is integrated on the basis of a Dempster Shafer theory, the limitation and instability of a single model are improved, an integrated multi-modal deep learning model ESwinin-T-M is built, and the recognition accuracy and robustness of an algorithm are improved; and a visual interpretation technology is utilized to analyze the learning rule and key features of the model. According to the method, intelligent and accurate recognition of complex geological conditions in the TBM tunneling working process is achieved, and a feasible scheme is provided for detection of the construction environment of the shield tunneling machine.

The application relates to the technical field of shield test, in particular to a composite shield test device, which comprises a stratum simulation module, a shield machine simulation module and a muck improvement module; the stratum simulation module can simulate the stratum environment under actual working conditions; the shield machine simulation module is used for simulating a shield machine; the muck improvement module is connected with the shield machine simulation module and can convey muck improvement additives into the soil bin in the shield machine simulation module. The composite shield test device has the functions of muck improvement, spiral conveyor output, soil bin muck stirring and shield tunneling process simulation, is closer to the movement form and stress condition between the shield machine and the soil body in the actual shield construction process, and has good simulation test effect.

The utility model discloses a kind of shield machine auxiliary operating devices, including the intermediate shaft installed in tunnel, two front fixed hydraulic cylinder groups and two rear fixed hydraulic cylinder groups are respectively installed on the two ends of the intermediate shaft, two front fixed hydraulic cylinder groups are connected by a telescopic cylinder, two rear fixed hydraulic cylinder groups are connected by another telescopic cylinder, gear is equipped on the rotary frame and engages with the gear ring on gear ring seat, the gear is drivingly connected with motor installed on rotary frame, the outside of rotary frame is connected with piece taking frame by hydraulic cylinder, clamping structure for clamping segment is equipped on piece taking frame;The utility model is through setting two front fixed hydraulic cylinder groups and two rear fixed hydraulic cylinder groups, the movement of entire device is facilitated, by setting the laying ladder with special structure and piece taking frame, it is convenient for operator to lay and fasten segment in different position.

The utility model discloses a kind of shield machine hydraulic propulsion system and shield machine, wherein, the shield machine hydraulic propulsion system includes for being connected with the initiative control oil circuit of first oil cylinder and for being connected with the following control oil circuit of second oil cylinder;Initiative control oil circuit includes for being set between the first propulsion oil circuit of hydraulic pump and the rodless chamber of first oil cylinder, first propulsion oil circuit includes proportioning speed regulating valve, proportioning pressure reducing valve and first ball valve arranged in sequence;Following control oil circuit includes for being set between the second propulsion oil circuit of hydraulic pump and the rodless chamber of second oil cylinder, second propulsion oil circuit includes second ball valve and pilot pressure reducing valve arranged in sequence, the control end of pilot pressure reducing valve is connected with the output end of proportioning pressure reducing valve, to make the propulsion pressure and propulsion speed of second propulsion oil circuit all keep consistent relative to first propulsion oil route.The shield machine hydraulic propulsion system provided by the utility model can reduce the use quantity of proportioning speed regulating valve and proportioning pressure reducing valve, simple structure and low in cost.

The application provides a shield machine oil cylinder control method and device and a storage medium, and relates to the field of shield machines. The method comprises the following steps: acquiring first oil cylinder parameters of all oil cylinders of the shield machine in an initial state; determining a first total thrust and a first action point; acquiring second oil cylinder parameters in a region to be assembled after the oil cylinders enter a synchronous advancing state; determining a second thrust target value of a second type of oil cylinder in a non-assembled region; determining an oil cylinder mode switching step number; controlling the first type of oil cylinder and the second type of oil cylinder to perform multiple first thrust adjustments until the number of executions reaches the oil cylinder mode switching step number, then reducing the thrust of each first type of oil cylinder to 0, and controlling the first type of oil cylinder to retract, so as to realize segment installation. The application solves the problem that the prior art ignores the influence of sudden changes in the thrust of the oil cylinders in the assembled region on the resultant thrust and the target point, and only focuses on the steady-state error after the target thrust distribution is completed, thereby reducing the control efficiency of the oil cylinders.

The invention provides a mechanical obstacle removing method and system for a shield crossing section steel joint underground diaphragm wall. The method comprises the following steps: firstly, determining a wall section to be subjected to obstacle removing and a section steel joint in a shield crossing range; then, a vertical drill hole is formed in the position, away from one side of the foundation pit, of the underground diaphragm wall, an all-casing full-slewing drilling machine is adopted for conducting segmented drilling on wall concrete and profile steel joints in the wall concrete, segmented cutting and taking out are conducted, and the vertical obstacle removing hole is backfilled; a horizontal or nearly horizontal drill hole is formed in the position, close to one side of the foundation pit, of the underground diaphragm wall, a horizontal diamond drilling machine is adopted for cutting and taking out the profile steel connector within the range of the shield tunnel portal, and a horizontal obstacle removing hole is blocked or backfilled; and finally, shield tunneling machine crossing construction is implemented. According to the method, the obstacle removing target is clear, side-by-side mechanical obstacle removing of the underground diaphragm wall with the section steel joints can be achieved under the conditions that a large-diameter obstacle removing well is not constructed and underground excavation manual obstacle removing is not carried out, and the method is verified through indoor and field tests and is suitable for being used in subway station crossing projects with limited fields.

The application discloses a linear combination shield construction method of a variable wedge-shaped pipe joint, and belongs to the technical field of urban pipeline construction, and comprises the following steps: according to construction requirements and a design curve, the wedge-shaped amount of a required pipe joint is calculated and determined; the wedge-shaped amount of the variable wedge-shaped pipe joint is adjusted through a screw rod adjusting device, so that the pipe joint meets the design curve requirements; the pipe joint with the adjusted wedge-shaped amount is jacked into the ground through a wellhead jacking system of a shield machine; in the pipe joint jacking operation, the shield machine is used as a main propelling device, and the wellhead jacking system is used in cooperation, so that the pipe joint can strictly follow a pre-planned linear combination path and accurately advance. The application can adapt to the construction requirements of complex linear combination such as straight line-curve-straight line and curve-straight line-curve, and the flexibility and adaptability of construction are improved.

1. The name of the design product: high and low voltage pre-installed substation (for shield machine). 2. The use of the design product: a special power distribution cabinet designed for shield machine, which includes high voltage, transformer and low voltage three parts, among which the high voltage includes 12KV / 24KV system and the low voltage includes 400V / 690V system, which can be compatible with TN and low voltage system. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view 1. 5. The submitted view can clearly express, and the elevation view is omitted.

The invention discloses a shield tunneling machine working face cyclone water film dust removal and electrostatic dust removal rear matching train device which comprises a cyclone water film dust remover and an electrostatic dust remover which are arranged on a front dust removal train section, and an electrostatic generator and a counter-rotating axial flow fan which are arranged on a rear dust removal train section. The front end of the electrostatic generator is connected with the electrostatic dust collector through a cable bridge, and an air outlet in the rear end of the electrostatic dust collector is connected with an air inlet in the front end of the counter-rotating axial flow fan through an air duct bridge; an air inlet at the front end of the cyclone water film dust remover is connected with a dust collection pipeline system; the dust collection pipeline system is provided with a floating dust space dust collection cover, a transfer point dust collection cover and a plurality of cutter head dust collection short pipes. The dust collection device can move along with movement of the shield working face, a good dust collection state is kept all the time, the dust collection effect is greatly improved in a wet dust collection and electrostatic dust collection combined mode, the air environment of the shield working face is fully improved, and meanwhile dust-containing air is prevented from being exhausted into the atmosphere to pollute the atmospheric environment.

The application provides a kind of slurry shield mud high-efficiency green zero-discharge construction method, relating to slurry shield technology field, and the construction method includes slurry bucket groove construction, high-quality mud mixing, slurry separation treatment, new slurry preparation, slurry emergency treatment, by screening treatment to waste mud, solid particles in mud can be separated, treated mud can be recycled, effectively avoiding the generation of waste mud; geotextile tube can handle waste mud when slurry treatment equipment fails or runs overload, when shield machine passes through risk source, ensure continuous tunneling of shield machine and rapid passing, improve the reliability of shield; by adopting assembled bucket groove structure, construction is convenient and material can be reused, avoiding the risk of slurry leakage; the application realizes efficient continuous uninterrupted tunneling of slurry shield in complex environment by combining module bucket groove structure + slurry green treatment process + geotextile tube treatment.

This utility model relates to the field of tunneling equipment technology, specifically providing a shell cutter system and tunnel boring machine (TBM) with online wear monitoring and compensation. The system includes a shell cutter guide rail, a shell cutter assembly, a sealing box, a wear monitoring device, a locking mechanism, and a drive mechanism. The shell cutter guide rail is fixedly connected to the spokes of the cutterhead. The sealing box is located inside the spokes of the cutterhead and fixedly connected to the shell cutter guide rail. The shell cutter assembly is embedded in the shell cutter guide rail and can move along it. The wear monitoring device is located on the shell cutter assembly. The drive mechanism is located inside the sealing box and connected to the shell cutter assembly. The locking mechanism is located between the shell cutter assembly and the shell cutter guide rail, and the locking mechanism cooperates with the drive mechanism to achieve wear compensation for the shell cutter assembly. The shell cutter system provided by this utility model can monitor the wear of the shell cutter assembly in real time and automatically compensate for its wear, ensuring cutting accuracy, extending service life, and reducing construction costs.

The application provides a large-diameter slurry shield safety stability multi-objective online optimization method and system based on GAT-LSTM-MOMPA, and belongs to the technical field of shield tunnel construction parameter multi-objective online optimization. The method comprises the following steps: obtaining monitoring data of shield construction parameters and preprocessing, and establishing an original sample set; adopting a method combining knowledge driving and correlation analysis, input parameters and output targets of a prediction model are determined; a space-time deep learning network framework GAT-LSTM is built, the mapping relationship between the input and the output is determined, and accurate prediction of the future time step optimization value is realized; through connection with MOMPA and TOPSIS, the historical value of the model is constantly updated, and accurate and effective real-time online optimization is achieved. The GAT-LSTM-MOMPA multi-objective online optimization model established by the application effectively improves the safety and stability of the shield machine operation.

The utility model relates to shield launching, belongs to the technical field of shield engineering, and particularly relates to a shield launching steel box, which comprises a tunnel portal, a duct piece and a shield tunneling machine arranged at the bottom of the tunnel portal. The box body mechanism comprises an embedded steel plate fixedly mounted on the outer side of a tunnel portal; the rubber cord fabric plate is fixedly installed on the outer ring of the tunnel portal, and a fixing plate is fixedly installed on one side of the rubber cord fabric plate; the device achieves the effects of improving the sealing performance and preventing silt from gushing, and solves the problems that during existing shield launching, due to the fact that rubber curtain cloth is flexible, slurry leakage frequently occurs at a curtain cloth plate along with continuous pressurization of a shield tunneling machine soil bin, after a shield tunneling machine completely enters a soil body, the contact effect of the rubber curtain cloth and a pipe piece is often poor, and the service life of the shield tunneling machine is prolonged. And the muddy water gushing phenomenon of the tunnel portal ring is more obvious.

The grouting device for the shield tunneling machine comprises a movable supporting plate, and a positioning assembly used for positioning and fixing the supporting plate and the ground is arranged at the bottom of the supporting plate. The top of the supporting plate is provided with a guide plate used for bearing a grouting pipe, a feeding assembly used for conducting feeding and even mixing on grout and an adjusting assembly used for adjusting the grouting height of the grouting pipe. The guide plate is provided with a reinforcing assembly used for locking the relative position of the grouting pipe on the guide plate. According to the grouting device for the shield tunneling machine, the overall stability of the supporting plate 1 can be guaranteed before and after grouting, the position where the grouting pipe is located can be effectively fixed and protected, the situation that the grouting pipe vibrates and is damaged during grouting is avoided, stability and reliability are achieved, meanwhile, the grouting height of the grouting pipe can be rapidly adjusted according to site requirements, grout can be rapidly fed and mixed evenly before grouting, and the grouting efficiency is improved. The operation efficiency is high.

The application provides a shield tunnel segment distribution setting method and system. The shield tunnel segment distribution setting method comprises the following steps: grabbing real-time data measured by a shield machine, wherein the real-time data are real-time data of a last ring assembling point of the shield machine; performing multiple point selection through staggered seam conditions, a shield tail gap, a stroke difference and an axis deviation to obtain an assembling point for current ring operation of the shield machine; and assembling segments of the shield machine according to the assembling point for current ring operation. The system comprises modules corresponding to the method steps.

This invention belongs to the technical field of multi-objective optimization of shield parameters and provides a method and system for multi-objective optimization of shield construction parameters. The method for multi-objective optimization of shield construction parameters includes the steps of: obtaining initial shield construction parameters; optimizing the shield construction parameters using a multi-objective optimization algorithm; predicting the excavation speed using a random forest based on the shield construction parameters in the optimization of the shield construction parameters; calculating the shield excavation energy consumption ratio based on the excavation speed and shield construction parameters; and making the maximization of the excavation speed and the minimization of the shield excavation energy consumption ratio the two fitness functions of the multi-objective optimization algorithm. This method takes into account construction efficiency and cost reduction while ensuring construction safety.

The invention relates to the technical field of shield tunnel engineering, and discloses an intelligent energy management method and system for a shield tunneling machine, and the method comprises the steps: S1, sensor deployment and data collection: respectively installing sensors in a cutterhead driving system, a duct piece installation system, a propulsion system and a grouting system of the shield tunneling machine, the extraction module is used for extracting energy consumption and construction state parameters of each subsystem of the shield tunneling machine; s2, data preprocessing is carried out on the collected real-time tunnel face geological parameters and corresponding subsystem energy consumption parameters, and a'geological condition-equipment working condition-energy consumption 'multi-dimensional mapping model is constructed based on a machine learning algorithm and used for outputting theoretical optimal energy consumption intervals under different working conditions; and S3, based on the progress of the construction task and the energy consumption efficiency of each subsystem, combining the model constructed in the S2, and dynamically adjusting the energy distribution priority of each subsystem through a multi-objective optimization algorithm. According to the method, collaborative optimization of construction efficiency and energy consumption is facilitated, the total energy consumption of the shield tunneling machine can be reduced, and the energy-saving effect is more remarkable.