BIM (Building Information Modeling)-based shallow earthing water-rich sand stratum two-way pipe jacking construction method, equipment and medium

Abstract

The invention relates to the technical field of bidirectional pipe jacking construction, and discloses a BIM (Building Information Modeling)-based shallow earthing water-rich sand stratum bidirectional pipe jacking construction method and equipment and a medium, and the method comprises the following steps: establishing a three-dimensional model by utilizing a BIM technology, and determining a feasible pipe jacking construction parameter set through a black wing algorithm; construction is conducted according to the pipe jacking construction sequence, in the construction process, corresponding construction parameters in all the construction processes are monitored in real time, the construction parameters monitored in real time are input into the three-dimensional model, and construction process simulation is conducted; in the jacking construction process, optimal jacking pipe jacking construction parameters completely matched with the jacking construction parameters in the current construction process are found from the feasible jacking pipe jacking construction parameter set; and when the parameters in the optimal pipe jacking construction parameters are not matched with the jacking construction parameters in the current jacking construction process, new optimal pipe jacking construction parameters are matched again. The method solves the problem in bidirectional pipe-jacking construction of the shallow-earthing water-rich sand stratum, and has remarkable economic benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of bidirectional pipe jacking construction, and in particular to a bidirectional pipe jacking construction method, equipment and medium for shallow overburden and water-rich sand formation based on BIM. Background Art

[0002] In urban infrastructure construction, pipe jacking technology is often used for projects such as crossing obstacles and laying underground pipelines. However, bidirectional pipe jacking construction in shallow overburden, water-rich sand strata faces many challenges. Under shallow overburden conditions, pipe jacking construction can easily cause excessive ground subsidence, affecting the safety of surrounding buildings and underground pipelines. Water-rich sand strata have the characteristics of strong fluidity and poor self-stability, and are prone to geological disasters such as quicksand and water gushing, increasing the difficulty and risk of construction. Bidirectional pipe jacking construction also requires precise control of the docking accuracy of the pipes to ensure the quality of pipeline connections. Traditional construction methods often lack effective prediction and response measures when faced with these complex situations. Various problems are prone to occur during the construction process, leading to low construction efficiency, increased costs and even engineering accidents. Summary of the Invention

[0003] In response to the above problems, the present invention provides a BIM-based bidirectional pipe jacking construction method, equipment and medium for shallow overburden and water-rich sand formations, which can effectively solve the problem that traditional construction methods often lack effective prediction and response measures when facing these complex situations, and various problems are prone to occur during the construction process, resulting in low construction efficiency, increased costs and even engineering accidents.

[0004] The present invention is achieved through the following technical solutions:

[0005] A BIM-based bidirectional pipe jacking construction method for shallow soil-rich water-sand strata, comprising:

[0006] Using BIM technology, a three-dimensional model of the shallow overburden, water-rich sand formation, jacking pipeline, working well, receiving well, support structure, and surrounding environment was established. The 3D model was then analyzed and simulated to determine the jacking route, jacking construction sequence, jacking connection position and angle, and support structure layout. The Black Kite algorithm was then used to determine a feasible set of jacking construction parameters.

[0007] The construction is carried out according to the pipe jacking construction sequence. During the construction process, the corresponding construction parameters of each construction process are monitored in real time, and the construction parameters monitored in real time are input into the three-dimensional model to simulate the construction process;

[0008] During the jacking construction process, the optimal jacking construction parameters that completely match the jacking construction parameters in the current construction process are found from the feasible jacking construction parameter set, and the jacking equipment is selected and the jacking pipe is advanced based on the optimal jacking construction parameters. When one or several parameters among the optimal jacking construction parameters do not match the jacking construction parameters in the current jacking construction process, new optimal jacking construction parameters are re-matched from the feasible jacking construction parameter set.

[0009] As an optimization, the model parameters of the established three-dimensional model include formation parameters, pipeline parameters, and the size and position information of the working well and the receiving well.

[0010] As an optimization, analyzing the three-dimensional model includes performing collision checking, force analysis and construction simulation on the three-dimensional model.

[0011] As an optimization, the specific process of determining the pipe jacking construction sequence, the pipe jacking connection position and angle, the operating axis of the pipe jacking machine, and the layout of the support structure by analyzing and simulating the three-dimensional model includes:

[0012] Determine whether the pipe jacking construction sequence is a general fixed sequence based on the three-dimensional model. If so, proceed directly to the next step. If not, integrate the actual adjustment means with the corresponding construction process in the general fixed sequence to form a special sequence, and then proceed to the next step.

[0013] Determining a bidirectional pipe jacking route based on the three-dimensional model;

[0014] Finding optimal pipe jacking construction parameters of the three-dimensional model based on model parameters corresponding to the three-dimensional model, setting the optimal pipe jacking construction parameters of the three-dimensional model as theoretical optimal pipe jacking construction parameters, and performing bidirectional pipe jacking setting on the working well and the receiving well in the three-dimensional model respectively, and determining a theoretical pipe jacking docking position and angle based on the jacking route and the theoretical optimal pipe jacking construction parameters;

[0015] The layout of the support structure is determined based on the three-dimensional model in combination with relevant technical manuals and industry specifications.

[0016] As an optimization, the general fixed sequence includes the construction preparation process, the working well and receiving well construction process, the pipe jacking machine installation and commissioning process, the pipeline installation process, the jacking construction process, the pipeline interface processing process, the pipe jacking machine arriving at the receiving well process, and the working well and receiving well processing process.

[0017] As an optimization, the Black Kite algorithm is used to determine a set of feasible pipe jacking construction parameters. Specifically, the feasible pipe jacking construction parameters are regarded as a Black Kite individual. The feasible pipe jacking construction parameters include jacking force parameters, velocity parameters, pipeline parameters, formation parameters, measurement parameters, pipe jacking machine parameters, and mud parameters. The jacking force parameters include the maximum jacking force; the velocity parameters include the jacking speed; the pipeline parameters include the pipeline diameter, pipeline length, pipe type, and pipe wall thickness; the formation parameters include geological conditions and groundwater level; the measurement parameters include axis deviation and elevation deviation; the pipe jacking machine parameters include the type of pipe jacking machine; the mud parameters include the properties of thixotropic mud; and the position of the Black Kite individual is the ground deformation height corresponding to the pipe jacking. The specific implementation process is as follows:

[0018] A1, initialization black-winged kite algorithm parameters, described algorithm parameters include the quantity, maximum number of iterations and optimization range of black-winged kite individual in the black-winged kite population;

[0019] A2. Randomly initialize the black kite population;

[0020] A3, the feasible pipe jacking construction parameter corresponding to the black-winged kite individual in the described black-winged kite population is input into the pipe jacking simulation software and simulated, and the fitness value that calculates each described black-winged kite individual position produces;

[0021] A4. Reorder the black kite individuals according to the fitness values;

[0022] A5. performing attack and migration behaviors on the reordered black kite individuals, thereby updating the positions of the black kite individuals;

[0023] A6. Determine whether the maximum number of iterations has been reached. If so, terminate the process and output the current black kite population. The black kite individuals whose ground deformation height is within the preset range are considered to have feasible pipe jacking construction parameters. Otherwise, return to A3.

[0024] As an optimization, during the jacking construction process, the jacking construction parameters monitored in real time are input into the three-dimensional model for dynamic simulation to analyze the stress changes and deformation of the soil around the jacking pipe during the jacking construction process. Combined with the seepage analysis theory, the seepage path and pressure changes of groundwater during the soil deformation process are simulated, and then it is speculated whether quicksand and water gushing may be caused during the jacking construction process.

[0025] As an optimization, during the pipe interface processing, expansion and contraction space is reserved at the pipe interface by taking into account the thermal expansion and contraction deformation factors of the pipe in the three-dimensional model, and a length-adjustable connection device is used to connect the two pipes.

[0026] The present invention also discloses an electronic device, comprising 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, and the instructions are executed by the at least one processor so that the at least one processor can execute a BIM-based bidirectional pipe jacking construction method for shallow-covered soil and water-rich sand formations as described above.

[0027] The present invention also discloses a storage medium storing a computer program. When the computer program is executed by a processor, the aforementioned bidirectional pipe jacking construction method for shallow soil-rich water-sand strata based on BIM is implemented.

[0028] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0029] 1. The BIM-based two-way pipe jacking construction method for shallow soil-rich water-sand strata of the present invention realizes comprehensive simulation and precise control of the construction process through the application of BIM technology. Before construction, potential problems can be discovered in advance through model analysis, the construction plan can be optimized, and construction risks can be reduced. During the construction process, the real-time monitoring and feedback mechanism combined with the BIM model can adjust the construction parameters in time to ensure construction safety and quality. Compared with traditional construction methods, it improves construction efficiency and reduces construction costs, effectively solves the problems in two-way pipe jacking construction in shallow soil-rich water-sand strata, and has significant economic and social benefits.

[0030] 2. The present invention uses the BIM model to accurately simulate and analyze the entire process of pipe jacking construction, from pre-construction plan optimization to real-time monitoring and adjustment during construction, effectively improving construction accuracy. During the initiation and advancement of pipe jacking, the axis deviation of the pipe jacking machine is monitored in real time through the measurement data in the BIM model, and the deviation can be accurately controlled within a very small range, ensuring that the straightness and slope of the pipeline laying meet the design requirements. When bidirectional pipe jacking is docked, the BIM model is used to accurately calculate the docking position and angle, and the model is strictly followed during the docking process to greatly improve the docking accuracy, ensure the sealing and integrity of the pipeline connection, thereby improving the construction quality of the entire project and reducing quality problems such as pipeline leakage and deformation caused by construction errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0032] Figure 1 This is a flow chart of a bidirectional pipe jacking construction method for shallow soil-rich water-sand strata based on BIM according to the present invention;

[0033] Figure 2A schematic diagram of the entire construction process. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0035] This embodiment 1 provides a bidirectional pipe jacking construction method for shallow soil-rich water-sand strata based on BIM, such as Figure 1-2 Shown, including:

[0036] S1. Use BIM technology to establish a three-dimensional model of the shallow overburden and water-rich sand formation, jacking pipeline, working well, receiving well, support structure and surrounding environment. Then, analyze and simulate the three-dimensional model to determine the jacking route, jacking construction sequence, jacking connection position and angle, and support structure layout. At the same time, the Black Kite algorithm is used to determine the feasible jacking construction parameter set.

[0037] In some embodiments, the model parameters of the established three-dimensional model include formation parameters, pipeline parameters, and the size and location information of the working well and receiving well. Analyzing the three-dimensional model includes performing collision checking, force analysis, and construction simulation on the three-dimensional model.

[0038] That is to say, the formation parameters, pipeline specifications, dimensions and location information of the working well and receiving well are accurately set in the three-dimensional model, and the three-dimensional model is subjected to collision check, force analysis and construction simulation. Based on the analysis results, the construction plan is optimized to determine the reasonable jacking construction sequence, jacking force size and direction, and support structure layout.

[0039] More specifically, the formation parameters here are formation parameters of water-rich sand characteristics, including sand particle size distribution, water content distribution, and permeability parameters.

[0040] In S1, the specific process of determining the pipe jacking construction sequence, the pipe jacking connection position and angle, the operating axis of the pipe jacking machine, and the layout of the support structure by analyzing and simulating the three-dimensional model includes:

[0041] S1.1. Determine whether the pipe jacking construction sequence is a general fixed sequence based on the three-dimensional model. If so, proceed directly to the next step. If not, integrate the actual adjustment means with the corresponding construction process in the general fixed sequence to form a special sequence, and then proceed to the next step.

[0042] The construction sequence for pipe jacking typically follows a fixed process: construction preparation → construction of the working and receiving shafts → installation and commissioning of the pipe jacking machine → pipe installation → jacking construction → pipe interface treatment → arrival of the pipe jacking machine at the receiving shaft → treatment of the working and receiving shafts. However, complex geological conditions, such as high groundwater levels, quicksand layers, or hard rock formations, may necessitate foundation preparation or specialized construction methods, such as dewatering, grouting reinforcement, or rock crushing, before proceeding with pipe jacking. In these cases, the construction sequence may include additional geological preparation steps during the construction preparation phase. When underground obstacles, such as old building foundations or abandoned pipelines, are present within the construction area, they must be detected and cleared to ensure smooth advancement of the pipe jacking machine. This may require the insertion of obstacle removal procedures before or during the construction of the working and receiving shafts. Certain pipe jacking projects may have special requirements, such as strict control of environmental impacts or exceptionally high demands for construction precision. To meet these requirements, it may be necessary to add some special steps to the construction sequence, such as adding ground settlement monitoring and compensating grouting procedures during the jacking process, or performing special anti-corrosion treatment on the pipeline before installation.

[0043] The practical adjustment measures mentioned above include first conducting foundation treatment or adopting special construction methods, such as precipitation, grouting reinforcement, rock crushing, obstacle handling procedures, and adding ground settlement monitoring and compensatory grouting procedures during the jacking process, or performing special anti-corrosion treatment on the pipeline before installation.

[0044] These practical adjustment methods are routine operations for those skilled in the art, and therefore, they will not be described in detail.

[0045] S1.2. Determine a bidirectional pipe jacking route based on the three-dimensional model;

[0046] The general process of determining the jacking route of bidirectional pipe jacking using a three-dimensional model is as follows:

[0047] Build an accurate model: Leveraging BIM technology, based on design drawings and actual site conditions, a 3D model is constructed that incorporates elements such as topography, geology, underground obstacles, and jacking pipelines. The model should accurately reflect the actual conditions of the construction area and provide a visual platform for analyzing and optimizing jacking routes.

[0048] Simulate the jacking process: Set the jacking parameters (i.e., feasible jacking construction parameters) for the pipe jacking machine in the BIM model to simulate the bidirectional pipe jacking process. By simulating the jacking machine's progress under different geological conditions, analyze the stress state of the pipeline, axis deviation, and potential problems. For example, simulation can reveal potential deviation trends when the pipe jacking machine traverses a sand layer, allowing for the development of corrective measures in advance.

[0049] Optimize the route plan: Based on the simulation results, further optimize the jacking route. Adjust parameters such as the route curvature and slope to ensure safer and more efficient pipe jacking construction. At the same time, through BIM models, collaborative communication with design and construction personnel is carried out to fully discuss and demonstrate the route plan to ensure its feasibility and rationality.

[0050] S1.3. Find the optimal pipe jacking construction parameters of the three-dimensional model based on the model parameters corresponding to the three-dimensional model, make the optimal pipe jacking construction parameters of the three-dimensional model the theoretical optimal pipe jacking construction parameters, and perform bidirectional pipe jacking settings in the working well and receiving well in the three-dimensional model respectively, and determine the theoretical pipe jacking docking position and angle based on the jacking route and the theoretical optimal pipe jacking construction parameters.

[0051] The model parameters include formation parameters and pipeline parameters, and the pipe jacking construction parameters include jacking force parameters, velocity parameters, pipeline parameters, formation parameters, measurement parameters, pipe jacking machine parameters, and mud parameters.

[0052] The pipe jacking machine parameters, measurement parameters and mud parameters are set in advance, and the axis deviation and elevation deviation in the measurement parameters are set to the historical average values under the same construction environment (i.e., the average values under the same geological conditions, pipe diameter, jacking length, etc.). Based on the model parameters of the established three-dimensional model (i.e., formation parameters, pipeline parameters), and based on the other three parameters set in advance, the optimal jacking force parameters and speed parameters are found, and the jacking construction is simulated based on the jacking route, the optimal jacking force parameters and the speed parameters to obtain the theoretical jacking pipe docking position and angle.

[0053] During the bidirectional pipe jacking construction process, there are usually some differences between the docking positions determined by the BIM model simulation construction and the actual docking positions. Despite these differences, determining the docking positions through BIM model simulation construction is still of great significance, mainly reflected in the following aspects:

[0054] Optimize construction plans: Through simulation, the construction process of bidirectional pipe jacking can be comprehensively analyzed and evaluated before construction, and potential problems such as pipe collision and soil instability can be discovered in advance. The construction plan can be optimized accordingly, including adjusting the pipe jacking path and determining reasonable construction parameters, thereby improving the success rate and safety of the construction.

[0055] Improve docking accuracy: Although there may be deviations between the simulated position and the actual position, the simulation results can provide a reference benchmark for construction, helping construction personnel to better plan the construction process and take effective control measures, such as real-time monitoring of the jacking pipe posture and timely adjustment of the jacking direction, so as to minimize the deviation between the actual docking position and the ideal position and improve docking accuracy.

[0056] Facilitates communication and coordination: BIM models are intuitive visualization tools that can present complex construction processes and docking locations to all parties involved in a 3D model, facilitating communication and coordination between designers, constructors, and supervisors. During the simulation process, all parties can jointly discuss the feasibility of construction plans, clarify their respective responsibilities and tasks, and reduce construction errors and delays caused by poor communication.

[0057] Risk Assessment and Control: Simulating the construction process allows for the evaluation of potential risks, such as the impact of ground deformation and subsidence on the surrounding environment. Based on the simulation results, appropriate risk control measures and emergency plans can be developed in advance to reduce construction risks and protect the safety of surrounding buildings, underground pipelines, and other facilities.

[0058] S1.4. Determine the layout of the support structure based on the three-dimensional model in combination with relevant technical manuals and industry specifications.

[0059] The relevant technical manuals here include "Construction Manual", "Underground Engineering Construction Manual", "Pipe Jacking Construction Technical Guide", "Steel Structure Design Manual", "Concrete Structure Design Manual", "Building Foundation Engineering Construction Quality Acceptance Standards", "Concrete Structure Engineering Construction Quality Acceptance Code", "Steel Structure Engineering Construction Quality Acceptance Standards", etc.

[0060] S2. Carry out construction according to the pipe jacking construction sequence. During the construction process, corresponding construction parameters of each construction process are monitored in real time, and the construction parameters monitored in real time are input into the three-dimensional model to simulate the construction process.

[0061] During pipe jacking construction, BIM model simulation is a dynamic process that requires continuous updating and adjustment based on real-time data and construction progress to achieve accurate simulation and effective guidance of the construction process. Through data interfaces and related software, collected construction parameters (including geological data) are integrated into the BIM model. This allows the BIM model to be dynamically updated based on real-time data, enabling real-time simulation of the construction process.

[0062] During the construction of the working well and receiving well, the reverse construction method or caisson method can be used to construct the working well and receiving well according to the position and size information determined by the BIM model. During the construction process, the BIM model is used to monitor the verticality, flatness and structural strength of the well wall in real time to ensure the construction quality of the (working / receiving) well. At the same time, according to the stratum conditions and the depth of the (working / receiving) well, the well wall support structure design is optimized in the BIM model, and internal supports and water-stop curtains are set. When using the reverse construction method to construct the working well and receiving well, the BIM model is used to optimize the excavation sequence, determine the layered excavation thickness and excavation range, reduce the disturbance to the surrounding strata, and simulate the structural stress changes during the construction process through the BIM model, and adjust the support structure parameters.

[0063] When installing and debugging a pipe jacking machine, the pipe jacking machine should be selected based on the pipe jacking construction parameters analyzed by the BIM model. The pipe jacking machine here includes the pipe jacking machine body, jacks, and jacking iron equipment. Input the equipment parameters into the BIM model for virtual installation and debugging. When selecting the cutterhead of the pipe jacking machine, combine the formation information in the BIM model to select the cutterhead type that is suitable for water-rich sand formations. Specifically, according to the pipe curvature radius and jacking length in the BIM model, select jacking equipment with appropriate correction and jacking capabilities (the pipe jacking machine mentioned above). During the installation of the jacking equipment, use the BIM model to check the spatial relationship between the jacking equipment and the well wall and pipeline.

[0064] The start and advancement of pipe jacking. In the starting stage, the posture and advancement speed of the pipe jacking machine are precisely controlled according to the guidance of the BIM model. The measurement data in the BIM model is used to monitor the axis deviation of the pipe jacking machine in real time, and the jacking force, correction speed and advancement speed are adjusted. In the advancement process, the excavation volume and grouting parameters of the pipe jacking machine can also be dynamically adjusted in combination with the stratum changes simulated by the BIM model. The dynamic adjustment of the excavation volume and grouting parameters of the pipe jacking machine in combination with the stratum changes simulated by the BIM model is an existing technology and will not be repeated here.

[0065] Specifically, during the jacking construction process, the real-time monitored jacking construction parameters are input into the three-dimensional model for dynamic simulation to analyze the stress changes and deformation of the soil around the jacking pipe during the jacking construction process. Combined with the seepage analysis theory, the seepage path and pressure changes of groundwater during the soil deformation process are simulated, and then it is inferred whether quicksand and water gushing may be caused during the jacking construction process, and corresponding emergency plans are formulated. The implementation effect of emergency treatment measures is simulated in the BIM model.

[0066] The BIM model is used to accurately calculate the docking position and angle of the bidirectional jacking pipe. Before docking, the docking process is simulated through the BIM model to develop a detailed docking plan, including the adjustment strategy of the jacking machine and the pipe segment connection method.

[0067] Specifically, during the pipe interface processing, expansion and contraction space is reserved at the pipe interface by taking into account the thermal expansion and contraction deformation factors of the pipe in the three-dimensional model, and a length-adjustable connection device is used to connect the two pipes.

[0068] Finally, during the pipe jacking construction process, the support position and method of the pipeline are determined according to the BIM model, the internal support and external reinforcement structure of the pipeline are installed, and according to the waterproof design requirements in the BIM model, waterstops and sealants are installed at the pipe joints and the connections between the pipeline and the well wall.

[0069] Specifically, during the implementation of pipeline support and waterproofing measures, BIM models were used for visual communication to determine the installation location and sequence of the support structure and the treatment requirements for waterproofing nodes. This is prior art and will not be elaborated on here.

[0070] S3. During the jacking construction process, find the best jacking construction parameters that fully match the jacking construction parameters in the current construction process from the feasible jacking construction parameter set, select the jacking equipment and advance the jacking pipe based on the best jacking construction parameters, and when one or several parameters among the best jacking construction parameters do not match the jacking construction parameters in the current jacking construction process, re-match new best jacking construction parameters from the feasible jacking construction parameter set.

[0071] In some embodiments, the Black Kite algorithm is used to determine a set of feasible pipe jacking construction parameters. Specifically, the feasible pipe jacking construction parameters are regarded as a Black Kite individual. The feasible pipe jacking construction parameters include jacking force parameters, speed parameters, pipeline parameters, formation parameters, measurement parameters, pipe jacking machine parameters, and mud parameters. The jacking force parameters include maximum jacking force; the speed parameters include jacking speed and correction speed; the pipeline parameters include pipeline diameter, pipeline length, pipe type, and pipe wall thickness; the formation parameters include geological conditions and groundwater level; the measurement parameters include axis deviation and elevation deviation; the pipe jacking machine parameters include pipe jacking machine type; the mud parameters include thixotropic mud properties; and the position of the Black Kite individual is the ground deformation height corresponding to the pipe jacking. The specific implementation process is as follows:

[0072] A1, initialization algorithm parameters of black-winged kite algorithm, described algorithm parameters include the quantity, maximum number of iterations and optimization range of black-winged kite individual in black-winged kite population;

[0073] A2. Randomly initialize the black kite population;

[0074] A3, the feasible pipe jacking construction parameter corresponding to the black-winged kite individual in the described black-winged kite population is input into the pipe jacking simulation software and simulated, and the fitness value that calculates each described black-winged kite individual position produces;

[0075] A4. Reorder the black kite individuals according to the fitness values;

[0076] A5. performing attack and migration behaviors on the reordered black kite individuals, thereby updating the positions of the black kite individuals;

[0077] A6. Determine whether the maximum number of iterations has been reached. If so, terminate the process and output the current black kite population. The black kite individuals whose ground deformation height is within the preset range are considered to have feasible pipe jacking construction parameters. Otherwise, return to A3.

[0078] Here, the ground deformation height refers to the height of the ground uplift or settlement directly above the jacking pipe.

[0079] In the Black Kite algorithm, the fitness value is the inverse of the ground deformation height, and is sorted from large to small.

[0080] The specific formula for randomly initializing the black kite population is:

[0081] X i =BK lb +rand(BK ub -BK lb )

[0082] Among them, X i Indicates the position of the i-th black kite individual, i is an integer between 1 and pop, pop is the number of black kite individuals in the black kite population, BK lb and BK ub are the lower and upper bounds of the j-th dimension black-winged kite individual, and rand is a randomly selected value between [0,1].

[0083] The mathematical model of the attack behavior of a black kite individual is:

[0084]

[0085] in, represents the position of the i-th black-winged kite individual in the j-th dimension and t+1 iteration steps; represents the position of the i-th black-winged kite individual in the j-th dimension and the t-th iteration step; r is a random number between 0 and 1, p is a constant of 0.9; T is the maximum number of iterations, and t is the number of iterations completed so far.

[0086] The migration behavior of the black kite individual is an improved migration behavior, and its mathematical model is:

[0087]

[0088] m=2×sin(r+π / 2);

[0089] in, represents the position of the i-th black-winged kite individual in the j-th dimension and t+1 iteration steps; represents the position of the i-th black-winged kite individual in the j-th dimension and t-th iteration step; represents the leading scorer of the black kite individual in the jth dimension at the tth iteration so far, that is, the value of the optimal black kite individual with the largest fitness value in the jth dimension, represents the fitness value of the current position of the i-th black-winged kite individual in the t-th iteration; represents the fitness value of the i-th black kite individual at a random position in the t-th iteration; C(0,1) represents the Cauchy mutation, represents the inertia weight of the i-th black kite individual in the t-th iteration step, Represents the evolutionary element of the i-th black-winged kite individual in the t-th iteration step.

[0090] The specific expression of Cauchy mutation is:

[0091]

[0092] Here, x represents a random variable.

[0093] The specific expression of inertia weight is:

[0094]

[0095] represents the fitness ranking of the i-th black-winged kite individual in the t-th iteration step (fitness values are sorted from large to small), represents the distance between the position of the i-th black-winged kite individual in the t-th iteration step and the position of the optimal black-winged kite individual, represents the position of the i-th black-winged kite individual in the t-th iteration step, Indicates the position of the optimal black kite individual in the tth iteration step. In this way, when the black kite individual is far away from the global optimal solution, the inertia weight is large, and a larger step size search can be performed, which is beneficial to global exploration; when the black kite individual is close to the global optimal solution, the inertia weight becomes smaller, and the step size becomes smaller, which is beneficial to local fine search. represents the j-th dimension of the current position of the i-th black kite individual in the t-th iteration step. The distance is calculated using the Euclidean distance formula.

[0096] The specific expression of the evolution element is:

[0097]

[0098] represents the average fitness value during the tth iteration. This technical solution uses the Black Kite algorithm to obtain a pipe jacking construction parameter combination that meets the ground deformation height constraint. The mathematical models of the migration and attack behaviors of the Black Kite algorithm are prior art and will not be repeated here.

[0099] Since the current jacking force, deviation correction speed, and jacking speed are all obtained based on experience and there is no good standard, some inexperienced workers are unable to obtain the optimal jacking force, deviation correction speed, and jacking speed. At the same time, during actual construction, the actual geological conditions may differ from the established three-dimensional model, resulting in the inability to always use the theoretical optimal jacking construction parameters set by the three-dimensional model. That is to say, in the actual construction process, the jacking construction parameters (such as jacking force, deviation correction speed, and jacking speed) may change accordingly due to geological reasons. Therefore, how to obtain the optimal jacking force, deviation correction speed, and jacking speed is a problem that needs to be considered.

[0100] The present invention can find the optimal combination of pipe jacking construction parameters through the Black Kite algorithm. Whenever some pipe jacking construction parameters other than the jacking force, the correction speed and the jacking speed change, a matching pipe jacking construction parameter combination can be found again, and the jacking force, the correction speed and the jacking speed in the newly found parameter combination are executed.

[0101] It should also be noted that if there is no completely matching pipe jacking construction parameter combination under the current jacking construction scenario, the optimal jacking force parameters and speed parameters are found through the Black Kite algorithm based on the construction scenario (pipeline parameters, formation parameters, measurement parameters, pipe jacking machine parameters and mud parameters), and then the found pipe jacking construction parameter combination is set as a feasible pipe jacking construction parameter into the pipe jacking construction parameter set to improve the pipe jacking construction parameter set.

[0102] Example 1: Drainage Pipeline Project in a City

[0103] In a bidirectional pipe jacking construction project involving a city drainage pipeline passing through a shallow, water-rich sand stratum, BIM technology was first used to create a three-dimensional model of the stratum, pipeline, working well, receiving well, and surrounding buildings. The model detailed parameters such as the sand stratum's particle size and water content, as well as information such as the pipe's diameter and wall thickness. A collision check revealed a conflict between the working well and surrounding underground cables in the original design, prompting a timely adjustment to the working well's position. Force analysis and construction simulation determined the construction sequence of jacking from the lower end to the higher end, leveraging gravity to reduce jacking resistance.

[0104] During the construction of the working shaft, a reverse construction method was adopted. According to the excavation sequence optimized by the BIM model, the layered excavation thickness was controlled at 0.5-1.0 meters, reducing the disturbance to the surrounding strata. The BIM model was used to monitor the construction quality of the shaft wall in real time. It was found that the vertical deviation of the shaft wall reached 3%, which was corrected in time. Based on the stratum conditions, three internal supports were installed on the shaft wall, and high-pressure jet grouting piles were used as a water-stop curtain. The water-stop curtain reached a depth of 10 meters, effectively preventing groundwater leakage.

[0105] When selecting the pipe jacking equipment, based on the BIM model analysis of a pipe curvature radius of 300 meters and a jacking length of 500 meters, a slurry-balanced pipe jacking machine with strong correction and jacking capabilities was selected. During the equipment installation process, virtual installation using the BIM model revealed that the distance between the jack and the well wall was too narrow. The installation angle of the jack was adjusted to ensure sufficient operating space after the equipment was installed.

[0106] At the initial stage of pipe jacking, the posture of the pipe jacking machine was adjusted to a horizontal deviation within ±5 mm according to the guidance of the BIM model, and the jacking speed was controlled at 10-15 mm / minute. During the advancement process, combined with the changes in the strata simulated by the BIM model, when the water content of the sand layer increased, the excavation volume was adjusted in time, from the original 5 cubic meters per hour to 3 cubic meters, and the grouting volume was increased, and the grouting pressure was raised from 0.3 MPa to 0.5 MPa, maintaining the stability of the excavation surface.

[0107] During bidirectional pipe jacking, the BIM model was used to accurately calculate the docking position and angle, and a 20mm expansion space was reserved. A detailed docking plan was developed by simulating the docking process, and a steel collar connection method was adopted. During the docking process, a total station was used for real-time monitoring to control the axis deviation within ±10mm, ensuring the accuracy and sealing of the pipe docking.

[0108] In terms of pipeline support and waterproofing, internal supports were installed at pipe bends and joints based on the BIM model, with a spacing of 2 meters. Rubber waterstops were installed at pipe joints and sealed with sealant. Through visual communication with the BIM model, the construction crew accurately installed the support structure and waterproofing measures, ensuring good pipeline waterproofing performance with no leakage.

[0109] During the construction monitoring and feedback process, settlement observation points and stress sensors were arranged along the jacking pipe line to collect data in real time and compare it with the predicted value of the BIM model. When it was found that the ground settlement in a certain area reached 10 mm (the warning value was 15 mm), the jacking speed was reduced to 5-10 mm / minute based on the BIM model analysis results, and grouting points were added in the area to carry out supplementary grouting to reinforce the ground, effectively controlling the ground settlement.

[0110] During the pipe jacking construction process, in order to achieve more efficient and accurate construction control, a control system can be added to closely integrate the BIM model with the pipe jacking construction;

[0111] First, before construction, a detailed underground space model was constructed using BIM technology. This model not only includes information about the geological structure and underground pipelines surrounding the pipe jacking route, but also accurately simulates the pipe jacking's design trajectory and the expected construction process. This BIM model serves as one of the core data foundations of the entire control system, providing an important reference for subsequent analysis and decision-making.

[0112] At the construction site, various sensors and data acquisition equipment are used to obtain real-time data on the actual pipe jacking, including parameters such as the pipe's position, posture, propulsion speed, and soil pressure. This data is then transmitted to the control system, which has powerful data processing and analysis capabilities and can quickly compare the received on-site pipe jacking data with the design data in the BIM model.

[0113] When the control system detects a deviation between the actual pipe jacking data and the designed trajectory or expected parameters in the BIM model, it immediately initiates a correction analysis program. Using complex algorithms and mathematical models, combined with the spatial information in the BIM model, it analyzes the cause of the deviation and its potential impact. For example, if the position of the pipe jacking is offset, the control system can determine whether it is due to uneven soil quality or improper construction operations based on information about the surrounding geological structure in the BIM model.

[0114] Based on the results of the correction analysis, the control system can generate specific correction suggestions and instructions. These instructions can be used by automated equipment or prompt operators to guide on-site construction personnel to take appropriate measures to correct the deviation, such as adjusting the direction and speed of the jacking pipe.

[0115] At the same time, the control system also has a data visualization function, which can display the BIM model, on-site pipe jacking data and the results of correction analysis in the form of intuitive charts and 3D models, making it easier for construction managers and technicians to understand the construction progress and quality at any time and make timely decisions.

[0116] Through this control system, the deep integration and interaction of the BIM model and pipe jacking construction are achieved, so that the data in the BIM model can be truly applied to the correction analysis and control in the actual construction process, greatly improving the accuracy and safety of pipe jacking construction, effectively avoiding engineering accidents and quality problems caused by excessive deviations, and ensuring the smooth progress of the project.

[0117] Example 2: A municipal water supply pipeline project

[0118] For a municipal water supply pipeline constructed in a bidirectional pipe jacking configuration through a shallow, water-rich sand formation, the BIM model was constructed with a focus on parameters such as the formation's permeability and sand density, as well as the anti-corrosion requirements for the water supply pipeline. Model analysis revealed that the originally designed pipeline burial depth might be significantly affected by groundwater buoyancy in some areas, resulting in adjustments to the pipeline burial depth and an increase in the soil cover thickness.

[0119] The working well was constructed using the caisson method. The sinking process of the caisson was simulated in the BIM model. The caisson structure design was optimized based on the ground resistance, and the wall thickness was increased. During the sinking process, the BIM model was used to monitor the wall friction and sinking speed in real time. If the friction was too high, a high-pressure water gun was used to assist the sinking, ensuring that the caisson was smoothly sunk to the designed elevation.

[0120] The pipe jacking equipment was selected based on the pipe material (ductile iron pipe) and jacking requirements in the BIM model. A suitable earth pressure balance pipe jacking machine was selected and equipped with the corresponding pipe lifting and installation equipment. During the equipment installation process, the BIM model was checked and it was found that the lifting height of the lifting equipment interfered with the wellhead. The height of the lifting equipment track was adjusted to ensure safe equipment installation and operation.

[0121] During the pipe jacking process, combined with the BIM model's simulation of the stratum change trend, it was predicted in advance that quicksand might occur in a certain area with a thin sand layer. An emergency plan was developed. When quicksand occurred, the jacking was immediately stopped and quick-setting cement slurry was injected into the excavation face. After stabilizing the stratum, jacking was resumed, successfully preventing the quicksand accident from escalating.

[0122] During the two-way pipe jacking docking, considering the extremely high sealing requirements of the water supply pipeline, the docking sealing structure was designed in detail in the BIM model, using a combination of rubber sealing rings and welding. During the docking process, the operation was strictly carried out according to the guidance of the BIM model. After the docking, a pressure test was carried out to ensure that the pipeline was leak-free.

[0123] Pipeline support and waterproofing measures were implemented in accordance with the BIM model. Anti-corrosion and waterproofing membranes were wrapped around the outside of the pipeline, and two waterstops were installed at the pipe joints. Construction briefing was conducted using the BIM model, and the construction personnel strictly followed the requirements. The pipeline's anti-corrosion and waterproofing performance met the design standards.

[0124] During construction monitoring and feedback, the BIM model is integrated with the monitoring system to monitor the water pressure and ground deformation in the pipeline in real time. When abnormal fluctuations in water pressure are found, combined with BIM model analysis, it is judged that there may be local blockage in the pipeline, and timely cleaning measures are taken to ensure the normal operation of the water supply pipeline.

[0125] The interaction process between BIM and actual construction:

[0126] 1. Interaction before construction

[0127] Model construction and data input: Using professional BIM software, based on the project's geological survey report, design drawings and other information, we accurately create a three-dimensional model of the shallow overburden, water-rich sand formation, jacking pipeline, working well, receiving well, support structure and surrounding environment. During the modeling process, we input detailed information such as the sand particle size distribution, water content distribution, permeability parameters of the formation, as well as pipeline specifications, well size and location information. This data becomes the basis for subsequent construction analysis and guidance, ensuring that the model can highly reflect the actual project conditions.

[0128] Scheme optimization and decision support: By performing collision checks on the constructed BIM model, potential conflicts such as working shafts and surrounding underground cables can be automatically identified and displayed intuitively in the model. Based on force analysis and construction simulation functions, the software simulates the construction process under different construction sequences, jacking force magnitudes and directions, support structure layouts, etc. according to the set parameters and algorithms, and generates corresponding analysis reports and visualization results. The construction team determines a reasonable construction plan based on these results, combined with engineering experience and actual needs. For example, in a certain city drainage pipeline project, the construction sequence is to jack from the lower end to the higher end. In this process, the BIM model provides key data support and visualization reference for decision-making, realizing effective interaction from model analysis to actual construction plan determination.

[0129] 2. Interaction during the construction process

[0130] Construction monitoring and data feedback:

[0131] Working and receiving well construction: When constructing working and receiving wells using the reverse construction or caisson methods, construction personnel use on-site surveying equipment (such as total stations and levels) to conduct real-time measurements of the well wall's verticality, flatness, and structural strength. These measurements are then input into the BIM model. Using pre-set data comparison and analysis functions, the BIM software automatically determines whether the measured data exceeds the design tolerance. For example, in a drainage pipeline project, if a well wall verticality deviation reaches 3%, the BIM model will promptly issue an alarm, prompting construction personnel to quickly take corrective measures to ensure well construction quality. Simultaneously, based on the formation conditions and well depth, the well wall support structure design is dynamically optimized within the BIM model, such as adjusting the position and number of internal supports and changing the parameters of the water-stop curtain. The optimized design is then fed back to construction personnel to guide actual construction.

[0132] Pipe jacking initiation and advancement: At the beginning of the jacking phase, the operator adjusts the initial position and starting speed of the pipe jacking machine through the control equipment according to the pre-set pipe jacking machine posture and jacking speed parameters in the BIM model, so that the horizontal deviation of the pipe jacking machine is controlled within ±5 mm. During the advancement process, the sensors installed on the pipe jacking machine collect real-time data such as the axis deviation of the pipe jacking machine and stratum changes, and transmit them to the BIM model. The BIM software automatically analyzes and generates adjustment suggestions based on the built-in algorithm and stratum mechanics model, combined with the input data. For example, when the water content of the sand layer increases in the drainage pipeline project, the BIM model calculates the specific values of the required reduction in excavation volume and increase in grouting volume based on the preset relationship between the stratum and construction parameters, and feeds back the adjustment instructions to the operator. The operator then adjusts the excavation volume and grouting parameters of the pipe jacking machine in a timely manner to maintain the stability of the excavation surface, realizing the dynamic monitoring and real-time guidance of the BIM model for the pipe jacking advancement process.

[0133] Equipment installation and space coordination: When selecting pipe jacking equipment, based on the construction parameters such as the pipe curvature radius and jacking length analyzed by the BIM model, equipment with suitable correction and jacking capabilities is screened in the equipment library of the BIM software, and virtual installation and debugging are carried out in the model. During the virtual installation process, the BIM software automatically checks the spatial relationship between the equipment and the well wall and pipeline. For example, if the spatial distance between the jack and the well wall is narrow in the drainage pipeline project, the collision detection function of the model will issue an early warning and provide adjustment suggestions, such as adjusting the installation angle of the jack. The construction personnel will install the equipment according to the adjusted plan to ensure that there is enough operating space after the equipment is installed, realizing close interaction between BIM and actual construction from equipment selection to installation.

[0134] 3. Interaction between docking and support waterproofing stages

[0135] Bidirectional pipe jacking docking: Utilizing the precise calculation capabilities of the BIM model, the docking position and angle of the bidirectional pipe jacking are automatically calculated based on the design parameters of the pipeline, deformation data during construction, and thermal expansion and contraction deformation factors. The docking process is simulated in the model to generate a detailed docking plan, including the adjustment strategy of the pipe jacking machine and the pipe joint connection method. During the docking process, measuring equipment such as total stations monitor the docking status in real time and feed the data back to the BIM model. The model compares the actual data with the preset docking parameters. For example, in a drainage pipe project, when the axis deviation approaches the warning value, the BIM model promptly prompts the operator to make fine adjustments to ensure that the docking accuracy is controlled within ±10 mm, ensuring the accuracy and sealing of the pipe docking, and realizing the precise guidance and real-time monitoring of the BIM model during the docking process;

[0136] Pipeline support and waterproofing: During pipeline support and waterproofing construction, construction personnel carry out construction according to the pipeline support position and method determined by the BIM model, such as setting internal supports at pipeline bends and joints, installing waterstops at pipe joints, and other information. During the construction process, the BIM model is used for visual briefing. Construction personnel accurately understand the installation position, installation sequence and processing requirements of the support structure by viewing the three-dimensional views and detailed annotations in the model. At the same time, the construction personnel feedback the installation status and problems encountered in the actual construction to the BIM model. For example, if difficulties are found in the installation of the waterstop, they are marked in the model. The project team analyzes and discusses the model, proposes solutions and feeds back to the construction personnel to ensure the effective implementation of pipeline support and waterproofing measures, and realizes two-way interaction between BIM and actual construction in this link.

[0137] Through the detailed interactive process of each of the above construction stages, BIM technology has been deeply integrated into actual construction, realizing efficient management and precise control of the entire process from pre-construction planning and design to dynamic monitoring and adjustment during construction, and to quality assurance in the later stage of construction. It has significantly improved construction efficiency, quality and safety, and effectively solved the difficulties in bidirectional pipe jacking construction in shallow overburden and water-rich sand formations.

[0138] Example 2 discloses an electronic device, comprising 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, and the instructions are executed by the at least one processor so that the at least one processor can execute a BIM-based bidirectional pipe jacking construction method for shallow-covered soil and water-rich sand formations as described in Example 1.

[0139] Example 3 discloses a storage medium storing a computer program, characterized in that when the computer program is executed by a processor, it implements the BIM-based bidirectional pipe jacking construction method for shallow-covered soil and water-rich sand formations described in Example 1.

[0140] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bidirectional pipe jacking construction method for shallow soil-rich water-sand strata based on BIM, characterized in that: include: Using BIM technology, a three-dimensional model of the shallow overburden, water-rich sand formation, jacking pipeline, working well, receiving well, support structure, and surrounding environment was established. The 3D model was then analyzed and simulated to determine the jacking route, jacking construction sequence, jacking connection position and angle, and support structure layout. The Black Kite algorithm was then used to determine a feasible set of jacking construction parameters. The construction is carried out according to the pipe jacking construction sequence. During the construction process, the corresponding construction parameters of each construction process are monitored in real time, and the construction parameters monitored in real time are input into the three-dimensional model to simulate the construction process; During the jacking construction process, the optimal jacking construction parameters that completely match the jacking construction parameters in the current construction process are found from the feasible jacking construction parameter set, and the jacking equipment is selected and the jacking pipe is advanced based on the optimal jacking construction parameters. When one or several parameters among the optimal jacking construction parameters do not match the jacking construction parameters in the current jacking construction process, new optimal jacking construction parameters are re-matched from the feasible jacking construction parameter set.

2. A bidirectional pipe jacking construction method for shallow soil-rich water-sand strata based on BIM according to claim 1, characterized in that: The model parameters of the established three-dimensional model include formation parameters, pipeline parameters, and the size and position information of the working well and the receiving well.

3. The method for bidirectional pipe jacking construction in shallow soil-rich water-sand strata based on BIM according to claim 1 is characterized in that: Analyzing the three-dimensional model includes performing collision checking, force analysis and construction simulation on the three-dimensional model.

4. A bidirectional pipe jacking construction method for shallow soil-rich water-sand strata based on BIM according to claim 3, characterized in that: The specific process of determining the pipe jacking construction sequence, the pipe jacking connection position and angle, the operating axis of the pipe jacking machine, and the layout of the support structure by analyzing and simulating the three-dimensional model includes: Determine whether the pipe jacking construction sequence is a general fixed sequence based on the three-dimensional model. If so, proceed directly to the next step. If not, integrate the actual adjustment means with the corresponding construction process in the general fixed sequence to form a special sequence, and then proceed to the next step. Determining a bidirectional pipe jacking route based on the three-dimensional model; Finding optimal pipe jacking construction parameters of the three-dimensional model based on model parameters corresponding to the three-dimensional model, setting the optimal pipe jacking construction parameters of the three-dimensional model as theoretical optimal pipe jacking construction parameters, and performing bidirectional pipe jacking setting on the working well and the receiving well in the three-dimensional model respectively, and determining a theoretical pipe jacking docking position and angle based on the jacking route and the theoretical optimal pipe jacking construction parameters; The layout of the support structure is determined based on the three-dimensional model in combination with relevant technical manuals and industry specifications.

5. A bidirectional pipe jacking construction method for shallow soil-rich water-sand strata based on BIM according to claim 4, characterized in that: The general fixed sequence includes the construction preparation process, the working well and receiving well construction process, the pipe jacking machine installation and commissioning process, the pipeline installation process, the jacking construction process, the pipeline interface processing process, the pipe jacking machine arriving at the receiving well process, and the working well and receiving well processing process.

6. The method for bidirectional pipe jacking construction in shallow soil-rich water-sand strata based on BIM according to claim 1, characterized in that: The specific method of determining a feasible pipe jacking construction parameter set by the Black Kite algorithm is to regard the feasible pipe jacking construction parameters as a Black Kite individual, and the feasible pipe jacking construction parameters include jacking force parameters, velocity parameters, pipeline parameters, formation parameters, measurement parameters, pipe jacking machine parameters and mud parameters; wherein, the jacking force parameters include maximum jacking force; the velocity parameters include jacking speed; the pipeline parameters include pipeline diameter, pipeline length, pipe type and pipe wall thickness; the formation parameters include geological conditions and groundwater level; the measurement parameters include axis deviation and elevation deviation; the pipe jacking machine parameters include pipe jacking machine type; the mud parameters include the performance of thixotropic mud; the position of the Black Kite individual is the ground deformation height corresponding to the pipe jacking; the specific implementation process is: A1, initialization black-winged kite algorithm parameters, described algorithm parameters include the quantity, maximum number of iterations and optimization range of black-winged kite individual in the black-winged kite population; A2. Randomly initialize the black kite population; A3, the feasible pipe jacking construction parameter corresponding to the black-winged kite individual in the described black-winged kite population is input into the pipe jacking simulation software and simulated, and the fitness value that calculates each described black-winged kite individual position produces; A4. Reorder the black kite individuals according to the fitness values; A5. performing attack and migration behaviors on the reordered black kite individuals, thereby updating the positions of the black kite individuals; A6. Determine whether the maximum number of iterations has been reached. If so, terminate the process and output the current black kite population. The black kite individuals whose ground deformation height is within the preset range are considered to have feasible pipe jacking construction parameters. Otherwise, return to A3.

7. The method for bidirectional pipe jacking construction in shallow soil-rich sand strata based on BIM according to claim 5 is characterized in that: During the jacking construction process, the real-time monitored jacking construction parameters are input into the three-dimensional model for dynamic simulation to analyze the stress changes and deformation of the soil around the jacking pipe during the jacking construction process. Combined with the seepage analysis theory, the seepage path and pressure changes of groundwater during the soil deformation process are simulated, and then it is speculated whether quicksand and water gushing may be caused during the jacking construction process.

8. The method for bidirectional pipe jacking construction in shallow soil-rich water-sand strata based on BIM according to claim 5 is characterized in that: During the pipe interface processing, expansion and contraction space is reserved at the pipe interface by utilizing the thermal expansion and contraction deformation factors of the pipe in the three-dimensional model, and a length-adjustable connection device is used to connect the two pipes.

9. An electronic device, characterized in that: It 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, and the instructions are executed by the at least one processor so that the at least one processor can execute a BIM-based bidirectional pipe jacking construction method for shallow overburden and water-rich sand formations as described in any one of claims 1 to 8.

10. A storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, a bidirectional pipe jacking construction method for shallow soil-covered, water-rich sand formation based on BIM is implemented.

Images