Construction instruction determination method and device for multi-section combined rectangular jacking pipe

Abstract

The application discloses a construction instruction determination method and device for a multi-section combined rectangular jacking pipe. The method comprises the following steps: acquiring current state data of the multi-section combined rectangular jacking pipe and current soil displacement data of a construction area at the current time; determining whether the construction state of the multi-section combined rectangular jacking pipe at the current time deviates from the expectation based on the current state data, the current soil displacement data, a simulation state data set of the multi-section combined rectangular jacking pipe, and a simulation soil displacement data set of the construction area; in the case of deviation from the expectation, determining target soil parameters and target structure contact parameters of the construction area at the current time based on the current state data and the current soil displacement data; and determining the construction instruction of the multi-section combined rectangular jacking pipe at the current time based on the target soil parameters and the target structure contact parameters. The application solves the technical problem of inaccurate construction instruction determination result of the multi-section combined rectangular jacking pipe in the related art.

Description

Technical Field

[0001] This application relates to the field of intelligent analysis technology, and more specifically, to a method and apparatus for determining construction instructions for multi-section combined rectangular jacking pipe. Background Technology

[0002] Pipe jacking, as an important trenchless construction technology, is widely used in the construction of urban underground tunnels, integrated utility tunnels, and subway entrances. With the increasing complexity of urban underground space development, single rectangular or circular pipe jacking sections are no longer sufficient to meet the demands for multi-functionality and large cross-sections. Multi-section composite rectangular pipe jacking, which consists of multiple rectangular pipe jacking units of different or identical dimensions assembled in a specific way to form a large-section structure, offers advantages such as high space utilization and flexible layout.

[0003] When multiple rectangular pipe jacking units are jacked sequentially, inaccurate construction instructions may exacerbate the mutual disturbance effect between these units. This can lead to significant additional stress and deformation on the already formed ring of rectangular pipe jacking units caused by subsequent construction, resulting in cracking or connection failure of the multi-section composite rectangular pipe jacking structure. Therefore, accurately determining the construction instructions for multi-section composite rectangular pipe jacking is crucial for suppressing construction disturbances, ensuring the safety of connections between multiple rectangular pipe jacking units, and maintaining the overall structural integrity. Related technologies often determine construction instructions based on a single pipe section or simplified plane strain assumptions, which cannot accurately describe the nonlinear mechanical response of multi-section composite rectangular pipe jacking in space, especially the complex mechanical behavior under different jacking sequences, different pipe section sizes, and different connection methods. Therefore, related technologies suffer from inaccurate determination of construction instructions for multi-section composite rectangular pipe jacking.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This application provides a method and apparatus for determining construction instructions for multi-section combined rectangular jacking pipes, so as to at least solve the technical problem of inaccurate determination results of construction instructions for multi-section combined rectangular jacking pipes in related technologies.

[0006] According to one aspect of the embodiments of this application, a method for determining construction instructions for a multi-section combined rectangular jacking pipe is provided, comprising: acquiring current state data of the multi-section combined rectangular jacking pipe at the current moment, and current soil displacement data of the construction area, wherein the multi-section combined rectangular jacking pipe includes multiple rectangular jacking pipe units and connection structures between the multiple rectangular jacking pipe units; based on the current state data, current soil displacement data, simulated state dataset of the multi-section combined rectangular jacking pipe, and simulated soil displacement dataset of the construction area, determining whether the construction state of the multi-section combined rectangular jacking pipe at the current moment deviates from the expected state, wherein the simulated soil displacement dataset includes data of the multi-section combined rectangular jacking pipe at multiple... Simulated state data corresponding to each construction stage; simulated soil displacement dataset includes simulated soil displacement data corresponding to each construction stage in the construction area; when the construction state of the multi-section combined rectangular jacking pipe deviates from the expectation at the current moment, based on the current state data and the current soil displacement data, the target soil parameters and target structural contact parameters of the construction area at the current moment are determined. Among them, the target structural contact parameters refer to the parameters that affect the mechanical transmission between the rectangular jacking pipe unit and the soil in the construction area, as well as the mechanical transmission between rectangular jacking pipe units; based on the target soil parameters and the target structural contact parameters, the construction instructions for the multi-section combined rectangular jacking pipe at the current moment are determined.

[0007] According to another aspect of the embodiments of this application, a construction instruction determination device for a multi-section combined rectangular jacking pipe is provided, comprising: a data acquisition module, configured to acquire current state data of the multi-section combined rectangular jacking pipe at the current moment, and current soil displacement data of the construction area, wherein the multi-section combined rectangular jacking pipe includes multiple rectangular jacking pipe units and connection structures between the multiple rectangular jacking pipe units; and a first determination module, configured to determine whether the construction state of the multi-section combined rectangular jacking pipe at the current moment deviates from the expected state based on the current state data, the current soil displacement data, the simulated state dataset of the multi-section combined rectangular jacking pipe, and the simulated soil displacement dataset of the construction area, wherein the simulated soil displacement dataset includes the multi-section combined rectangular jacking pipe at multiple... The simulation state data for each construction stage, and the simulation soil displacement dataset include the simulation soil displacement data for the construction area at each of the multiple construction stages; the second determination module is used to determine the target soil parameters and target structural contact parameters of the construction area at the current moment, based on the current state data and the current soil displacement data, when the construction state of the multi-section combined rectangular jacking pipe deviates from the expectation at the current moment. The target structural contact parameters refer to the parameters that affect the mechanical transmission between the rectangular jacking pipe unit and the soil in the construction area, as well as the mechanical transmission between rectangular jacking pipe units; the third determination module is used to determine the construction instructions for the multi-section combined rectangular jacking pipe at the current moment based on the target soil parameters and the target structural contact parameters.

[0008] According to another aspect of the embodiments of this application, a non-volatile storage medium is provided, which stores multiple instructions, the instructions being adapted for a method for determining construction instructions for a multi-section combined rectangular jacking pipe, any one of which is loaded and executed by a processor.

[0009] According to another aspect of the embodiments of this application, an electronic device is provided, including: one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to implement any one of the following methods for determining construction instructions for multi-section combined rectangular jacking pipes.

[0010] According to another aspect of the embodiments of this application, a computer program product is provided, which, when executed on a data processing device, is suitable for executing the steps of a method for determining construction instructions for a multi-section combined rectangular jacking pipe.

[0011] In this embodiment, by acquiring the current state data of the multi-section combined rectangular jacking pipe and the current soil displacement data of the construction area, wherein the multi-section combined rectangular jacking pipe includes multiple rectangular jacking pipe units and the connection structure between the multiple rectangular jacking pipe units; based on the current state data, the current soil displacement data, the simulated state dataset of the multi-section combined rectangular jacking pipe, and the simulated soil displacement dataset of the construction area, it is determined whether the construction state of the multi-section combined rectangular jacking pipe deviates from the expectation at the current moment, wherein the simulated soil displacement dataset includes the simulated state data corresponding to multiple construction stages of the multi-section combined rectangular jacking pipe. The simulated soil displacement dataset includes simulated soil displacement data corresponding to multiple construction stages in the construction area. When the construction state of the multi-section combined rectangular jacking pipe deviates from expectations at the current moment, based on the current state data and current soil displacement data, the target soil parameters and target structural contact parameters of the construction area are determined at the current moment. The target structural contact parameters refer to the parameters affecting the mechanical transfer between the rectangular jacking pipe unit and the soil in the construction area, as well as the mechanical transfer between rectangular jacking pipe units. Based on the target soil parameters and target structural contact parameters, the construction instructions for the multi-section combined rectangular jacking pipe at the current moment are determined. The goal is to improve the accuracy of determining the construction command of multi-section combined rectangular jacking pipe by acquiring the current status data of the multi-section combined rectangular jacking pipe and the current soil displacement data of the construction area, combined with the simulated status dataset of the multi-section combined rectangular jacking pipe and the simulated soil displacement dataset of the construction area. Furthermore, if a deviation from the expected result is determined, the construction command of the multi-section combined rectangular jacking pipe is determined based on the current status data and the current soil displacement data. This solves the technical problem of inaccurate determination of construction command results for multi-section combined rectangular jacking pipe in related technologies. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0013] Figure 1 This is a flowchart of a method for determining construction instructions for a multi-section combined rectangular jacking pipe according to an embodiment of this application;

[0014] Figure 2 This is a flowchart of a method for determining construction instructions for an optional multi-section combined rectangular jacking pipe according to an embodiment of this application;

[0015] Figure 3This is a structural block diagram of an optional multi-section combined rectangular pipe jacking construction analysis system provided according to an embodiment of this application;

[0016] Figure 4 This is a schematic diagram of a construction instruction determination device for a multi-section combined rectangular jacking pipe according to an embodiment of this application;

[0017] Figure 5 This is a structural diagram of an electronic device provided according to an embodiment of this application. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] It should be noted that the information and data collected in this application (including but not limited to current state data, current soil displacement data, simulated state datasets, and simulated soil displacement datasets) are information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, storage, use, processing, transmission, provision, disclosure, and application of this data all comply with relevant laws, regulations, and standards, and necessary confidentiality measures have been taken. This process does not violate public order and good morals, and corresponding operation entry points are provided for users to choose whether to authorize or refuse. For example, interfaces are set up between this system and relevant users or organizations, providing users with corresponding operation entry points for them to choose whether to agree to or refuse the automated decision-making results; if the user chooses to refuse, the process proceeds to the expert decision-making stage.

[0021] According to an embodiment of this application, a method embodiment for determining construction instructions for a multi-section combined rectangular jacking pipe is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0022] Figure 1 This is a flowchart illustrating a method for determining construction instructions for a multi-section composite rectangular jacking pipe according to an embodiment of this application. Figure 1 As shown, the method includes the following steps:

[0023] Step S102: Obtain the current status data of the multi-section combined rectangular jacking pipe at the current moment, and the current soil displacement data of the construction area. The multi-section combined rectangular jacking pipe includes multiple rectangular jacking pipe units and the connection structure between the multiple rectangular jacking pipe units.

[0024] This involves acquiring the current status data of the multi-section combined rectangular pipe jacking system and the current soil displacement data of the construction area. The multi-section combined rectangular pipe jacking system comprises multiple rectangular pipe jacking units and connecting structures between these units, such as bolted flanges, sealing waterstops, and hinged joints. By collecting real-time status data and soil displacement data, high-precision on-site perception of the triple coupling effect of "structural response—connection status—soil disturbance" can be achieved, improving the accuracy of construction status judgment and laying the foundation for determining construction instructions.

[0025] Optionally, the current status data may include, but is not limited to: the measured strain values ​​of the nodes of each rectangular pipe jacking unit, the measured contact pressure of the nodes of the connecting structure contact surface, and the measured pipe section displacement of the nodes of each rectangular pipe jacking unit. The current soil displacement data may include, but is not limited to: the measured soil displacement of multiple soil monitoring points in the construction area. The aforementioned nodes may indicate a rectangular pipe jacking unit or a connecting structure contact surface, or they may indicate a portion of a rectangular pipe jacking unit or a portion of the connecting structure contact surface.

[0026] Optionally, a monitoring system can be deployed in the construction area to obtain real-time monitoring data, including current status data and current soil displacement data. The monitoring system includes strain gauges, earth pressure cells, and displacement sensors deployed on the key sections of each rectangular pipe jacking unit. The key sections include at least the front face, middle face, and rear face of the rectangular pipe jacking unit, and monitoring points are densely deployed near the connecting structures between the rectangular pipe jacking units.

[0027] Optionally, strain gauges can be installed at key sections (including the front, middle, and rear faces) of each rectangular pipe jacking unit to measure the local strain response of the concrete or steel shell of the rectangular pipe jacking unit. Contact pressure and displacement sensors are densely deployed near the connecting structures between rectangular pipe jacking units (such as bolted flanges, sealing waterstops, and hinged joints) to acquire the contact pressure distribution, relative slip, and opening displacement of the connecting structure contact surfaces. Simultaneously, the absolute three-dimensional displacement and attitude angles (e.g., pitch, yaw, roll) of each rectangular pipe jacking unit are acquired using a hydrostatic level, total station, or fiber optic distributed sensing system to reflect the overall deformation state of the formed ring structure.

[0028] Optionally, earth pressure cells, inclinometers, layered settlement meters, and fiber optic grating soil displacement meters can be installed along the longitudinal and radial directions around the outer contour of the multi-section combined rectangular jacking pipe and directly above it on the ground surface to collect real-time data on the vertical settlement, horizontal displacement, and shear strain evolution of the soil at different depths and orientations, covering the jacking influence range of the multi-section combined rectangular jacking pipe.

[0029] Optionally, the connection structure contact surface refers to the physical interface where, in a multi-section composite rectangular jacking pipe, adjacent rectangular jacking pipe units are assembled using mechanical connectors such as flanges, bolts, gaskets, or hinges, and the two rectangular jacking pipe unit bodies or their connection structures directly contact and interact mechanically. This connection structure contact surface includes, but is not limited to: the flange mating surface, the bolt hole wall and bolt contact surface, the rubber waterstop ring and pipe wall contact surface, and the hinge joint rolling surface.

[0030] Step S104: Based on the current state data, current soil displacement data, simulated state dataset of multi-section combined rectangular jacking pipe, and simulated soil displacement dataset of construction area, determine whether the construction state of multi-section combined rectangular jacking pipe at the current moment deviates from the expectation. The simulated soil displacement dataset includes simulated state data of multi-section combined rectangular jacking pipe at multiple construction stages, and simulated soil displacement dataset includes simulated soil displacement data of construction area at multiple construction stages.

[0031] Understandably, based on current state data and soil displacement data, as well as pre-acquired simulated state datasets of the multi-section combined rectangular jacking pipe and simulated soil displacement datasets of the construction area, the current construction state of the multi-section combined rectangular jacking pipe is determined to be whether it deviates from expectations by dynamically simulating the entire construction process. By performing high-precision time-series alignment and multi-parameter error comparison between the real-time collected data and the simulated data, accurate, dynamic, and physically interpretable deviations in the construction state of the multi-section combined rectangular jacking pipe can be determined, improving the accuracy of the judgment results.

[0032] Optionally, the simulated state data may include, but is not limited to: simulated strain values ​​of nodes of each rectangular pipe jacking unit, simulated contact pressure of nodes at the connecting structural contact surfaces, and simulated pipe section displacements of nodes of each rectangular pipe jacking unit, corresponding to the construction stage. Simulated soil displacement data may include, but is not limited to: simulated soil displacements at multiple soil monitoring points in the construction area.

[0033] In an optional embodiment, before determining whether the construction state of the multi-section combined rectangular jacking pipe deviates from the expected value at the current moment based on the current state data, current soil displacement data, simulated state dataset of the multi-section combined rectangular jacking pipe, and simulated soil displacement dataset of the construction area, the method further includes: constructing an initial numerical model based on the initial soil parameters and initial structural contact parameters of the construction area, wherein the initial numerical model includes multiple simulated rectangular jacking pipe units, simulated connection structures between the multiple rectangular jacking pipe units, and multiple simulated soil units of the construction area, with each simulated rectangular jacking pipe unit corresponding to one of the multiple rectangular jacking pipe units; and performing dynamic simulation of the entire construction process on the initial numerical model according to the jacking sequence of the multiple rectangular jacking pipe units to obtain simulated state data of the multi-section combined rectangular jacking pipe corresponding to multiple construction stages, and simulated soil displacement data of the construction area corresponding to multiple construction stages, wherein the jacking sequence is used to indicate the spatial jacking order of the multiple rectangular jacking pipe units.

[0034] The following methods are used to obtain simulated state data and simulated soil displacement data. First, based on the initial soil parameters and initial structural contact parameters of the construction area, an initial numerical model is constructed, including multiple simulated rectangular pipe jacking units, simulated connection structures between these units, and multiple simulated soil units in the construction area (each unit corresponds to a soil detection point). Based on the jacking sequence of the multiple rectangular pipe jacking units, the initial numerical model is dynamically simulated throughout the entire construction process to obtain simulated state data for the multi-section combined rectangular pipe jacking at multiple construction stages, and simulated soil displacement data for the construction area at multiple construction stages. For the target construction stage, the simulated state data includes the simulated strain values, simulated contact pressures, and simulated pipe section displacements of all nodes corresponding to the rectangular pipe jacking units currently being jacked in the target stage, and the rectangular pipe jacking units that have completed jacking in previous stages. The aforementioned jacking sequence refers to the pre-defined spatial sequence of jacking multiple rectangular pipe jacking units, including sequential jacking, synchronous jacking, or combined jacking methods. A construction stage refers to a discrete time step corresponding to the completion of the jacking action of each rectangular pipe jacking unit (or the jacking action of a group of synchronously jacking rectangular pipe jacking units) according to the jacking sequence (such as sequential jacking or combined jacking). That is, each jacking step is a construction stage. By constructing an initial numerical model based on the initial soil and initial structure contact parameters, and combining it with stage-by-stage dynamic simulation driven by the jacking sequence, high-fidelity time-series prediction of the coupled response of the entire construction process of multi-section combined rectangular pipe jacking is achieved. The simulated state data and simulated soil displacement data corresponding to each construction stage are output, laying the foundation for real-time comparison of construction status.

[0035] Optionally, the jacking sequence is a pre-defined spatial sequence of jacking multiple rectangular pipe jacking units, including sequential jacking, synchronous jacking, or combined jacking methods. The dynamic simulation of the entire construction process can employ the element activation technology of the finite element method, gradually activating the rectangular pipe jacking units and excavated soil according to the jacking sequence, and dynamically updating the total stiffness matrix in each analysis step.

[0036] For example, if a multi-section combined rectangular pipe jacking system has four rectangular pipe jacking units, and the jacking sequence is as follows: rectangular pipe jacking unit 1 is jacked first, rectangular pipe jacking unit 2 is jacked after rectangular pipe jacking unit 1 is jacked, and rectangular pipe jacking units 3 and 4 are jacked simultaneously after rectangular pipe jacking unit 2 is jacked, then there are three construction stages. The first construction stage is the jacking of rectangular pipe jacking unit 1, the second construction stage is the jacking of rectangular pipe jacking unit 2, and the third construction stage is the simultaneous jacking of rectangular pipe jacking units 3 and 4.

[0037] Optionally, when constructing the initial numerical model, solid elements can be used to simulate the soil in the construction area to realistically reflect the stress-strain response of the soil in three-dimensional space; shell elements or solid elements can be used to simulate the rectangular pipe jacking element. Shell elements are suitable for thin-walled structures, while solid elements are suitable for thick-walled or non-uniform stress conditions; contact surface elements can be used to simulate the interaction between the rectangular pipe jacking element and the soil, as well as the contact friction behavior between the rectangular pipe jacking elements. This can accurately capture nonlinear contact behaviors such as slippage, separation, and friction, thereby realistically reproducing the complex "pipe-soil" and "pipe-pipe" coupling mechanical mechanisms during the jacking process.

[0038] Optionally, the boundary conditions of the initial numerical model can be set as follows: the top is a free boundary, indicating that the surface of the construction area is unconstrained and can deform freely to simulate real surface conditions; the bottom and all sides are normal constraint boundaries, which restrict the displacement of the soil in the direction perpendicular to the boundary to simulate the lateral and bottom support of the soil at infinity on the three-dimensional refined numerical model, thereby reducing the impact of boundary effects on the construction simulation process.

[0039] In an optional embodiment, the method further includes: for a target construction stage among multiple construction stages, determining the simulated soil displacement data of the construction area in the target construction stage and the simulated pipe jacking displacement data in the simulated state data of the multi-section combined rectangular pipe jacking in the target construction stage in the following manner.

[0040] ,

[0041] in, This is a displacement vector composed of simulated soil displacement data and simulated pipe jacking displacement data in the construction area during the target construction phase. The total stiffness matrix for the target construction phase. Let be the equivalent force vector of the jacking force during the target construction phase. Let be the interaction force vector generated by the deformation of the rectangular pipe jacking unit constructed in the construction phase prior to the target construction phase.

[0042] It is understandable that the above This provides simulated soil displacement data for the target construction stage across multiple construction phases within the construction area. It can be represented in the form of a vector, where each position in the vector corresponds to a soil detection point or a node of a rectangular pipe jacking unit, and each value corresponds to the simulated soil displacement of the soil detection point or the simulated pipe section displacement of the node at that position. The equivalent force vector of the jacking force in the target construction stage is applied only to the rear node of the rectangular pipe jacking unit that is being jacked in the target construction stage. The direction is along the jacking axis, and the amplitude is set by the jacking machine control system. Through the nodal load equivalence principle of the finite element method, the jacking force is spatially distributed and torque balanced at the nodes of the rear connection area of ​​the rectangular pipe jacking unit, forming an equivalent propulsion force vector acting on the body of the rectangular pipe jacking unit. This refers to the interaction force vector induced by the deformation or displacement of all rectangular pipe jacking units completed before the target stage. By constructing a unified coupled mechanical equation with the simulated soil displacement data, total stiffness matrix, and equivalent force vector of the jacking force during the target construction stage, along with the interaction force vector induced by historical deformation, we achieve full-link physical modeling of "temporal disturbance-structural response-force transmission" in multi-section combined rectangular pipe jacking construction. This improves the accuracy of construction state prediction and the dynamic adaptability of construction commands, as well as the accuracy of the results determined by simulated soil displacement data.

[0043] In an optional embodiment, the method further includes: determining the interaction force vector in the following manner:

[0044] ,

[0045] Where n is the first number of simulated rectangular pipe jacking units, and m is the second number of contact objects of the i-th simulated rectangular pipe jacking unit. Let be the contact stiffness matrix between the i-th simulated rectangular pipe jacking element and the j-th contact object. Let be the relative displacement vector between the i-th simulated rectangular jacking pipe unit and the j-th contact object.

[0046] It can be understood that m is the second number of contact objects of the i-th simulated rectangular pipe jacking unit, which can be the nodes corresponding to adjacent simulated rectangular pipe jacking units, the soil detection points corresponding to the surrounding simulated soil units, and the nodes corresponding to the simulated connection structure. Let be the contact stiffness matrix between the i-th simulated rectangular pipe jacking element and the j-th contact object. This matrix describes the stiffness relationship between the normal and tangential stiffness of the i-th simulated rectangular pipe jacking element and the j-th contact object. The normal stiffness is determined by the soil compression modulus, the pipe section material stiffness, and the contact element thickness, reflecting the compressive resistance of the contact surface between i and j. The tangential stiffness is determined by the coupling of the friction coefficient and the normal stiffness of the contact surface between i and j. ,in and It is based on simulated soil displacement data It is certain. By constructing an interaction force model based on the relative displacement of contact objects and the dynamic contact stiffness matrix, the physical explicit quantification of the "pipe-to-pipe, pipe-to-soil" coupled disturbance in the construction of multi-section rectangular pipe jacking is realized, improving the accuracy of simulated soil displacement data and providing a highly reliable physical basis for the adaptive optimization of construction instructions.

[0047] In one optional embodiment, based on current state data, current soil displacement data, a simulated state dataset of the multi-section combined rectangular jacking pipe, and a simulated soil displacement dataset of the construction area, determining whether the construction state of the multi-section combined rectangular jacking pipe deviates from expectations at the current moment includes: determining the current construction stage of the multi-section combined rectangular jacking pipe at the current moment; determining the construction stage corresponding to the current construction stage from the simulated state dataset and the simulated soil displacement dataset, the current simulated state data of the multi-section combined rectangular jacking pipe, and the current simulated soil displacement data of the construction area; and performing error analysis based on the current state data, current soil displacement data, current simulated state data, and current simulated soil displacement data to determine whether the construction state of the multi-section combined rectangular jacking pipe deviates from expectations at the current moment.

[0048] The following method is used to determine whether the construction status of the multi-section combined rectangular pipe jacking deviates from expectations at a previous moment. First, the current construction stage of the multi-section combined rectangular pipe jacking is determined. Based on the current construction stage, the current simulated state data of the multi-section combined rectangular pipe jacking and the current simulated soil displacement data of the construction area corresponding to the current construction stage are determined from the simulated state dataset and the simulated soil displacement dataset. Second, error analysis is performed on the corresponding nodes based on the current simulated state data and the current state data, and error analysis is performed on the corresponding soil detection points based on the current simulated soil displacement data and the current soil displacement data. It is determined whether there are nodes or soil detection points with errors exceeding a preset error threshold. If so, it indicates that the construction status of the multi-section combined rectangular pipe jacking deviates from expectations at the current moment; otherwise, it indicates that it does not deviate from expectations. Through construction stage alignment and node-level error linkage analysis of measured and simulated data, high-precision, low-false-alarm identification of deviations in the construction status of the multi-section combined rectangular pipe jacking is achieved, providing a reliable and traceable real-time decision-making basis for closed-loop adaptive optimization of soil parameters and structural contact parameters.

[0049] Step S106: If the construction status of the multi-section combined rectangular jacking pipe deviates from the expected status at the current moment, based on the current status data and the current soil displacement data, determine the target soil parameters and target structural contact parameters of the construction area at the current moment. The target structural contact parameters refer to the parameters that affect the mechanical transmission between the rectangular jacking pipe unit and the soil in the construction area, as well as the mechanical transmission between rectangular jacking pipe units.

[0050] It is understandable that if the construction status of the multi-section combined rectangular pipe jacking deviates from the expected state at the current moment, an inversion analysis algorithm is used based on the current state data and current soil displacement data to invert the initial soil parameters and initial structural contact parameters, thereby obtaining more accurate target soil parameters and target structural contact parameters. Through a parameter joint inversion mechanism based on measured data, dynamic online correction of the initial soil parameters and initial structural contact parameters is achieved, improving the predictive reliability of the numerical model.

[0051] Optionally, the preset error threshold can be a relative error threshold or an absolute error threshold. When the relative error between the real-time monitoring data and the simulated prediction data exceeds 5%, it is determined that the construction status deviates from the expectation.

[0052] Alternatively, the inversion analysis algorithm can employ an improved ensemble Kalman filter algorithm, whose state update equation is:

[0053]

[0054]

[0055] in, Let be the prior state vector for the k-th step, which contains the initial soil parameters and initial structural contact parameters to be inverted; This is the posterior state vector, i.e., the soil parameters and structural contact parameters corrected by the observation data; This represents the observation data at step k; For observation operators; The Kalman gain matrix determines the strength of the correction applied by the observed data to the prior state vector. Let be the prior error covariance matrix, which characterizes the uncertainty distribution of the prior state vector; Let be the observation error covariance matrix.

[0056] Step S108: Based on the target soil parameters and the target structure contact parameters, determine the construction instructions for the multi-section combined rectangular jacking pipe at the current moment.

[0057] It is understandable that by modifying the initial numerical model based on the target soil parameters and the target structural contact parameters, a more accurate modified numerical model is obtained. Based on this modified numerical model, the construction commands for the multi-section combined rectangular jacking pipe at the current moment are optimized, including jacking force, jacking speed, and grouting pressure, with the objective of minimizing the displacement deviation and command adjustment deviation caused by the current construction stage and subsequent construction stages. Through dynamic reconstruction of the initial numerical model driven by inversion parameters and multi-objective optimization, the intelligent generation and online optimization of the construction commands for the multi-section combined rectangular jacking pipe are achieved, reducing the disturbance risk of the preceding rectangular jacking pipe units and improving construction safety and structural integrity.

[0058] In one optional embodiment, the construction instructions for the multi-section combined rectangular jacking pipe at the current moment are determined based on the target soil parameters and the target structure contact parameters, including: modifying the initial numerical model based on the target soil parameters and the target structure contact parameters to obtain a modified numerical model; and determining the construction instructions based on the modified numerical model using an optimization objective function, wherein the optimization objective function is used to minimize the displacement deviation and instruction adjustment deviation caused by the current construction stage and the construction stages after the current construction stage.

[0059] ,

[0060] in, To optimize the objective function, This is the construction instruction vector corresponding to the construction instruction to be optimized. This is the current construction phase. This is the third quantity for multiple construction phases. During the current construction phase, due to construction instructions... The resulting displacement vector The target value of the displacement vector in the current construction phase. For regularization parameters, This is a reference construction instruction vector.

[0061] It is understandable that the initial numerical model is corrected based on the target soil parameters and the target structure contact parameters to obtain a more accurate corrected numerical model. Based on the corrected numerical model, an optimization algorithm is used to optimize the construction instructions for the multi-section combined rectangular pipe jacking at the current moment, resulting in optimized construction instructions. The objective function of the aforementioned optimization algorithm is used to minimize the displacement deviation and instruction adjustment deviation caused by the current construction stage and subsequent construction stages. The construction command vector corresponding to the construction command to be optimized includes jacking force, jacking speed, and grouting pressure. Through the initial numerical model correction driven by inversion parameters and a multi-stage collaborative optimization mechanism, forward-looking intelligent optimization of jacking force, jacking speed, and grouting pressure for future construction stages of multi-section combined rectangular pipe jacking is achieved, improving the accuracy of the construction command determination results and enhancing the stability and controllability of the construction process.

[0062] Through the above steps S102 to S108, the current state data of the multi-section combined rectangular jacking pipe and the current soil displacement data of the construction area can be obtained. Combined with the simulated state dataset of the multi-section combined rectangular jacking pipe and the simulated soil displacement dataset of the construction area, it can be determined whether the construction state of the multi-section combined rectangular jacking pipe deviates from the expectation. If it is determined that the deviation from the expectation has been determined, the construction instructions of the multi-section combined rectangular jacking pipe can be determined based on the current state data and the current soil displacement data. This achieves the technical effect of improving the accuracy of the determination result of the construction instructions of the multi-section combined rectangular jacking pipe, thereby solving the technical problem of inaccurate determination result of the construction instructions of the multi-section combined rectangular jacking pipe in related technologies.

[0063] Based on the above embodiments and optional embodiments, this application proposes an implementation method for determining construction instructions of an optional multi-section combined rectangular jacking pipe. This implementation method can be understood as a construction analysis method and system for multi-section combined rectangular jacking pipe. Figure 2 This is a flowchart illustrating a method for determining construction instructions for an optional multi-section combined rectangular jacking pipe according to an embodiment of this application. Figure 2 As shown, the steps of the construction analysis method for multi-section combined rectangular pipe jacking include:

[0064] Step S1: Establish a three-dimensional refined numerical model (i.e., initial numerical model) of the multi-section combined rectangular pipe jacking. This model includes multiple rectangular pipe jacking units (i.e. simulated rectangular pipe jacking units), the connection structure between units (i.e. simulated connection structure), and the surrounding soil (composed of multiple simulated soil units).

[0065] Solid elements are used to simulate the soil in the construction area to realistically reflect the stress-strain response of the soil in three-dimensional space. Shell elements or solid elements are used to simulate the rectangular pipe jacking elements. Shell elements are suitable for thin-walled structures, while solid elements are suitable for thick-walled or non-uniform stress conditions. Contact surface elements are used to simulate the interaction between the rectangular pipe jacking elements and the soil, as well as the contact friction behavior between the rectangular pipe jacking elements. This can accurately capture nonlinear contact behaviors such as slippage, separation, and friction, thereby realistically reproducing the complex "pipe-soil" and "pipe-pipe" coupling mechanical mechanisms during the jacking process.

[0066] The interaction between the rectangular pipe jacking element and the soil, as well as the contact friction behavior between the rectangular pipe jacking elements, can be described by the following coupling equation:

[0067]

[0068] in, This is a displacement vector composed of simulated soil displacement data and simulated pipe jacking displacement data in the construction area during the target construction phase. The total stiffness matrix for the target construction phase. Let be the equivalent force vector of the jacking force during the target construction phase. Let be the interaction force vector generated by the deformation of the rectangular pipe jacking unit constructed in the construction phase prior to the target construction phase.

[0069] Interaction force vector Calculated using the following contact constraint conditions:

[0070]

[0071] Where n is the first number of simulated rectangular pipe jacking units, and m is the second number of contact objects of the i-th simulated rectangular pipe jacking unit. Let be the contact stiffness matrix between the i-th simulated rectangular pipe jacking element and the j-th contact object. Let be the relative displacement vector between the i-th simulated rectangular jacking pipe unit and the j-th contact object.

[0072] The boundary conditions of the three-dimensional refined numerical model are set as follows: the top is a free boundary, which means that the surface of the construction area is unrestrained and can deform freely to simulate real surface conditions; the bottom and the surrounding area are normal constraint boundaries, which restrict the displacement of the soil in the direction perpendicular to the boundary to simulate the lateral and bottom support of the soil at infinity on the three-dimensional refined numerical model, thereby reducing the impact of boundary effects on the construction simulation process.

[0073] Step S2: Based on the jacking sequence, perform dynamic simulation of the entire construction process on the three-dimensional refined numerical model to obtain simulation state data and simulation soil displacement data at each construction stage. The simulation state data includes the strain field (including the strain value of the node of the corresponding rectangular pipe jacking unit), displacement field (including the simulated pipe section displacement of the node of the corresponding rectangular pipe jacking unit), and stress state of the connecting structure (including the simulated contact pressure of the node of the connecting structure contact surface).

[0074] The jacking sequence is a pre-defined spatial sequence of jacking multiple rectangular pipe jacking units, including sequential jacking, synchronous jacking, or combined jacking methods. The dynamic simulation of the entire construction process adopts the element activation technology of the finite element method, which activates the rectangular pipe jacking units and the excavated soil step by step according to the jacking sequence, and dynamically updates the total stiffness matrix in each analysis step.

[0075] Step S3: Deploy a monitoring system in the construction area to collect real-time current status data of the multi-section combined rectangular jacking pipe and current soil displacement data in the construction area. The current status data includes the measured strain values ​​of the nodes of each rectangular jacking pipe unit, the measured contact pressure of the nodes of the connecting structure, and the measured pipe section displacement of the nodes of each rectangular jacking pipe unit.

[0076] The monitoring system includes strain gauges, earth pressure cells, and displacement sensors deployed on the key sections of each rectangular pipe jacking unit. The key sections include at least the front, middle, and rear faces of the rectangular pipe jacking unit, and monitoring points are densely deployed near the connecting structures between the rectangular pipe jacking units.

[0077] Step S4: Compare the collected real-time monitoring data (including current status data and current soil displacement data) with the simulated prediction data (including simulated status data and simulated soil displacement data) of the corresponding construction stage obtained by simulation. Based on the preset error threshold, determine whether the actual construction status of the multi-section combined rectangular jacking pipe deviates from the expectation.

[0078] The preset error threshold is either a relative error threshold or an absolute error threshold. When the relative error between the real-time monitoring data and the simulated prediction data exceeds 5%, it is determined that the construction status deviates from the expectation.

[0079] Step S5: When it is determined that the construction status deviates from the expectation, the target soil parameters and target structure contact parameters are obtained by using the inversion analysis algorithm with real-time monitoring data as input.

[0080] The inversion analysis algorithm employs an improved ensemble Kalman filter algorithm, and its state update equation is as follows:

[0081]

[0082]

[0083] in, Let be the prior state vector for the k-th step, which contains the initial soil parameters and initial structural contact parameters to be inverted; This is the posterior state vector, i.e., the soil parameters and structural contact parameters corrected by the observation data; This represents the observation data at step k; For observation operators; The Kalman gain matrix determines the strength of the correction applied by the observed data to the prior state vector. Let be the prior error covariance matrix, which characterizes the uncertainty distribution of the prior state vector; Let be the observation error covariance matrix.

[0084] Step S6: Input the target soil parameters and target structure contact parameters obtained from the inversion into the three-dimensional refined numerical model, optimize and adjust the construction instructions for the subsequent construction stage, and generate optimized jacking force, jacking speed and grouting pressure.

[0085] The optimization objective function is used to minimize the displacement deviation and command adjustment deviation caused by the current construction stage and subsequent construction stages. Its mathematical expression is as follows:

[0086]

[0087] in, To optimize the objective function, The construction command vector corresponding to the construction command to be optimized includes jacking force, jacking speed, and grouting pressure. This is the current construction phase. This is the third quantity for multiple construction phases. During the current construction phase, due to construction instructions... The resulting displacement vector The target value of the displacement vector in the current construction phase. For regularization parameters, This is a reference construction instruction vector.

[0088] Step S7: The optimized construction instructions are sent to the control system of the pipe jacking machine to realize closed-loop adaptive control of the construction process.

[0089] Based on the above, a multi-section combined rectangular pipe jacking construction analysis system is proposed. Figure 3 This is a structural block diagram of an optional multi-section combined rectangular pipe jacking construction analysis system provided according to an embodiment of this application, such as... Figure 3 As shown, the system includes a model building unit, a numerical simulation unit, a field monitoring unit, a data acquisition and transmission unit, a data processing and analysis unit, a parameter inversion unit, an optimization decision-making unit, and an instruction issuance and control unit.

[0090] The system comprises the following components: a model building unit for establishing a refined 3D numerical model of the multi-section composite rectangular pipe jacking machine; a numerical simulation unit for dynamic simulation of the entire construction process based on the jacking sequence; a field monitoring unit containing strain gauges, earth pressure cells, and displacement sensors deployed on the rectangular pipe jacking units and connecting structures; a data acquisition and transmission unit for acquiring real-time monitoring data and transmitting it wirelessly; a data processing and analysis unit for comparing real-time monitoring data with simulated prediction data and determining whether the construction status deviates from expectations; a parameter inversion unit for inverting target soil parameters and target structure contact parameters based on real-time monitoring data; an optimization decision unit for optimizing subsequent construction instructions based on the target soil parameters and target structure contact parameters; and an instruction issuance and control unit for issuing the optimized construction instructions to the pipe jacking machine control system.

[0091] This section presents a specific implementation method, using finite element method (FE) software to establish a refined three-dimensional numerical model comprising soil, a first rectangular pipe jacking element, a second rectangular pipe jacking element, a third rectangular pipe jacking element, a fourth rectangular pipe jacking element, and the connection structure between the rectangular pipe jacking elements. The soil is modeled using solid elements of the Mohr-Coulomb constitutive model, the rectangular pipe jacking elements using shell elements of the elastic constitutive model, and the connection structure using beam elements to simulate its bolted connection. Contact pairs are established between the rectangular pipe jacking elements and the soil, and between the rectangular pipe jacking elements and the connection structure. The contact attribute is defined as penalty function friction, with a friction coefficient of 0.3. The dimensions of the refined three-dimensional numerical model are: horizontally, 5 times the outer contour dimension of the multi-section combined rectangular pipe jacking element; vertically, 4 times the height of the multi-section combined rectangular pipe jacking element; and in the jacking direction, 1.2 times the total jacking length. Boundary conditions are set as free at the top, with normal displacement constraints applied to the bottom and all four sides.

[0092] The jacking sequence is set as follows: first, the first rectangular pipe jacking unit is jacked; then, the second rectangular pipe jacking unit is jacked; and finally, the remaining rectangular pipe jacking units are jacked simultaneously or sequentially. The simulation process employs element activation technology, activating the rectangular pipe jacking units and excavated soil step-by-step according to the jacking sequence. During each jacking step, a jacking force is applied, and the grouting layer pressure is simulated. In each analysis step, the overall equilibrium equations are solved.

[0093] Monitoring points were installed at key sections of the first and second rectangular pipe jacking units. Key sections included locations 0.5m from the end, middle, and tail of the multi-section composite rectangular pipe jacking unit. Strain gauges were installed near the top plate, bottom plate, sidewalls, and connecting structures of each pipe jacking section to measure the strain of the rectangular pipe jacking unit. Earth pressure cells were installed on the outside of the rectangular pipe jacking unit and at the contact surfaces of the connecting structures to measure earth pressure and contact pressure. Displacement sensors, such as hydrostatic levels or total station prisms, were installed at key points of the rectangular pipe jacking unit to monitor displacement. All sensors were connected to a data acquisition system.

[0094] The data acquisition and transmission module collects data from strain gauges, earth pressure cells, and displacement sensors in real time and wirelessly transmits it to the data processing and analysis module. This module compares the real-time monitoring data of the current construction stage with the simulated prediction data of the corresponding stage and performs error analysis. If the error exceeds a preset error threshold, it is determined that the current construction state deviates from expectations, triggering parameter inversion. The optimization decision module substitutes the target soil parameters and target structure contact parameters obtained from the inversion into a three-dimensional refined numerical model to optimize the construction instructions for the subsequent rectangular pipe jacking units. The optimization objective is to minimize the disturbance of subsequent construction to the completed structure, that is, to minimize the displacement deviation and instruction adjustment deviation caused by the current construction stage and subsequent construction stages.

[0095] The above optional implementation methods achieve at least the following effects: by establishing a three-dimensional refined numerical model, the complex spatial effects, temporal effects, and pipe-soil and pipe-pipe interactions in the construction of multi-section combined rectangular pipe jacking are considered, and dynamic feedback is achieved through real-time monitoring data, thus realizing accurate simulation and control of the construction process.

[0096] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0097] This embodiment also provides a construction instruction determination device for a multi-section combined rectangular jacking pipe. This device is used to implement the above embodiments and preferred embodiments, and will not be repeated as already described. As used below, the terms "module" and "device" can refer to a combination of software and / or hardware that performs a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0098] According to an embodiment of this application, an apparatus embodiment for determining a construction instruction method for multi-section composite rectangular jacking pipe is also provided. Figure 4 This is a schematic diagram of a construction instruction determining device for a multi-section combined rectangular jacking pipe according to an embodiment of this application, as shown below. Figure 4 As shown, the above-mentioned construction instruction determination device for multi-section combined rectangular jacking pipe includes a data acquisition module 402, a first determination module 404, a second determination module 406, and a third determination module 408. The device will be described below.

[0099] The data acquisition module 402 is used to acquire the current status data of the multi-section combined rectangular jacking pipe at the current moment, as well as the current soil displacement data of the construction area. The multi-section combined rectangular jacking pipe includes multiple rectangular jacking pipe units and the connection structure between the multiple rectangular jacking pipe units.

[0100] The first determining module 404, connected to the data acquisition module 402, is used to determine whether the construction status of the multi-section combined rectangular jacking pipe deviates from the expected status at the current moment based on the current status data, the current soil displacement data, the simulated status dataset of the multi-section combined rectangular jacking pipe, and the simulated soil displacement dataset of the construction area. The simulated soil displacement dataset includes the simulated status data of the multi-section combined rectangular jacking pipe at multiple construction stages, and the simulated soil displacement dataset includes the simulated soil displacement data of the construction area at multiple construction stages.

[0101] The second determining module 406, connected to the first determining module 404, is used to determine the target soil parameters and target structural contact parameters of the construction area at the current moment based on the current state data and the current soil displacement data when the construction state of the multi-section combined rectangular jacking pipe deviates from the expectation at the current moment. The target structural contact parameters refer to the parameters that affect the mechanical transmission between the rectangular jacking pipe unit and the soil in the construction area, as well as the mechanical transmission between rectangular jacking pipe units.

[0102] The third determining module 408, connected to the second determining module 406, is used to determine the construction instructions for the multi-section combined rectangular jacking pipe at the current moment based on the target soil parameters and the target structure contact parameters.

[0103] This application provides a construction instruction determination device for a multi-section combined rectangular jacking pipe. By setting a data acquisition module 402, a first determination module 404, a second determination module 406, and a third determination module 408, the device achieves the purpose of determining whether the construction state of the multi-section combined rectangular jacking pipe deviates from the expectation by acquiring the current state data of the multi-section combined rectangular jacking pipe and the current soil displacement data of the construction area, and combining the simulated state dataset of the multi-section combined rectangular jacking pipe and the simulated soil displacement dataset of the construction area. If it is determined that the construction state deviates from the expectation, the device determines the construction instruction of the multi-section combined rectangular jacking pipe based on the current state data and the current soil displacement data. This improves the accuracy of the construction instruction determination result of the multi-section combined rectangular jacking pipe and solves the technical problem of inaccurate construction instruction determination results of multi-section combined rectangular jacking pipe in related technologies.

[0104] It should be noted that the above modules can be implemented by software or hardware. For example, for the latter, it can be implemented in the following ways: the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0105] It should be noted that the data acquisition module 402, the first determining module 404, the second determining module 406, and the third determining module 408 mentioned above correspond to steps S102 to S108 in the embodiments. The instances and application scenarios implemented by the above modules and their corresponding steps are the same, but they are not limited to the content disclosed in the above embodiments. It should be noted that the above modules, as part of the device, can run in a computer terminal.

[0106] It should be noted that the optional or preferred implementation methods of this embodiment can be found in the relevant descriptions in the embodiments, and will not be repeated here.

[0107] The construction instruction determination device for the multi-section combined rectangular jacking pipe mentioned above may also include a processor and a memory. The data acquisition module 402, the first determination module 404, the second determination module 406, the third determination module 408, etc. are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize the corresponding functions.

[0108] The processor contains a core that retrieves the corresponding program unit from memory. One or more cores may be configured. Memory may include non-persistent memory in computer-readable media, random access memory (RAM), and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory includes at least one memory chip.

[0109] This application provides a non-volatile storage medium storing a program that, when executed by a processor, implements a method for determining construction instructions for multi-section combined rectangular jacking pipes.

[0110] This application provides an electronic device. Figure 5 This is a structural diagram of an electronic device provided according to an embodiment of this application. For example... Figure 5 As shown, the electronic device may include: one or more ( Figure 5(Only one is shown) a processor 502, a memory 504, a memory controller, and a peripheral interface, wherein the peripheral interface is connected to an RF module, an audio module, and a display. The electronic device includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it performs the following steps: acquiring the current state data of the multi-section combined rectangular jacking pipe and the current soil displacement data of the construction area, wherein the multi-section combined rectangular jacking pipe includes multiple rectangular jacking pipe units and connection structures between the multiple rectangular jacking pipe units; based on the current state data, the current soil displacement data, the simulated state dataset of the multi-section combined rectangular jacking pipe, and the simulated soil displacement dataset of the construction area, determining whether the construction state of the multi-section combined rectangular jacking pipe deviates from expectations at the current moment, wherein the simulated soil displacement dataset includes the multi-section combined rectangular... The simulation data includes simulated state data for each construction stage of the pipe jacking project. The simulated soil displacement dataset includes simulated soil displacement data for each construction stage. When the construction state of the multi-section combined rectangular pipe jacking deviates from expectations at the current moment, the target soil parameters and target structural contact parameters for the construction area are determined based on the current state data and current soil displacement data. The target structural contact parameters refer to the parameters affecting the mechanical transfer between the rectangular pipe jacking unit and the soil in the construction area, as well as the mechanical transfer between rectangular pipe jacking units. Based on the target soil parameters and target structural contact parameters, the construction instructions for the multi-section combined rectangular pipe jacking project at the current moment are determined. The equipment mentioned in this paper can be a server, PC, etc.

[0111] This application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program with the following initialization steps: acquiring the current state data of a multi-section combined rectangular jacking pipe and the current soil displacement data of the construction area, wherein the multi-section combined rectangular jacking pipe includes multiple rectangular jacking pipe units and connection structures between the multiple rectangular jacking pipe units; based on the current state data, the current soil displacement data, the simulated state dataset of the multi-section combined rectangular jacking pipe, and the simulated soil displacement dataset of the construction area, determining whether the construction state of the multi-section combined rectangular jacking pipe deviates from expectations at the current moment, wherein the simulated soil displacement dataset includes the multi-section combined rectangular jacking pipe... The simulation data includes simulated state data for the pipe at multiple construction stages, and simulated soil displacement data for the construction area at each construction stage. If the construction state of the multi-section combined rectangular pipe jacking deviates from expectations at the current moment, the target soil parameters and target structural contact parameters for the construction area are determined based on the current state data and current soil displacement data. The target structural contact parameters refer to the parameters affecting the mechanical transfer between the rectangular pipe jacking unit and the soil in the construction area, as well as the mechanical transfer between rectangular pipe jacking units. Based on the target soil parameters and target structural contact parameters, the construction instructions for the multi-section combined rectangular pipe jacking at the current moment are determined.

[0112] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0113] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0114] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0115] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0116] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0117] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, like read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0118] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0119] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0120] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0121] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for determining construction instructions for multi-section composite rectangular jacking pipe, characterized in that, include: The current status data of the multi-section combined rectangular jacking pipe and the current soil displacement data of the construction area are obtained at the current moment. The multi-section combined rectangular jacking pipe includes multiple rectangular jacking pipe units and the connection structure between the multiple rectangular jacking pipe units. Based on the current state data, the current soil displacement data, the simulated state dataset of the multi-section combined rectangular jacking pipe, and the simulated soil displacement dataset of the construction area, it is determined whether the construction state of the multi-section combined rectangular jacking pipe at the current moment deviates from the expectation. The simulated soil displacement dataset includes simulated state data of the multi-section combined rectangular jacking pipe at multiple construction stages, and the simulated soil displacement dataset includes simulated soil displacement data of the construction area at the multiple construction stages. If the construction status of the multi-section combined rectangular jacking pipe deviates from the expected state at the current moment, the target soil parameters and target structural contact parameters of the construction area at the current moment are determined based on the current state data and the current soil displacement data. The target structural contact parameters refer to the parameters that affect the mechanical transmission between the rectangular jacking pipe unit and the soil of the construction area, as well as the mechanical transmission between rectangular jacking pipe units. Based on the target soil parameters and the target structure contact parameters, the construction instructions for the multi-section combined rectangular jacking pipe at the current moment are determined.

2. The method according to claim 1, characterized in that, Before determining whether the construction status of the multi-section combined rectangular jacking pipe deviates from the expected value at the current moment based on the current state data, the current soil displacement data, the simulated state dataset of the multi-section combined rectangular jacking pipe, and the simulated soil displacement dataset of the construction area, the method further includes: Based on the initial soil parameters and initial structural contact parameters of the construction area, an initial numerical model is constructed. The initial numerical model includes multiple simulated rectangular pipe jacking units, simulated connection structures between the multiple rectangular pipe jacking units, and multiple simulated soil units of the construction area. The multiple simulated rectangular pipe jacking units correspond one-to-one with the multiple rectangular pipe jacking units. Based on the jacking sequence of the plurality of rectangular pipe jacking units, the initial numerical model is dynamically simulated throughout the construction process to obtain the simulated state data of the multi-section combined rectangular pipe jacking at multiple construction stages, and the simulated soil displacement data of the construction area at the multiple construction stages. The jacking sequence is used to indicate the spatial jacking order of the plurality of rectangular pipe jacking units.

3. The method according to claim 2, characterized in that, The method further includes: For the target construction stage among the multiple construction stages, the simulated soil displacement data of the construction area in the target construction stage and the simulated pipe displacement data of the multi-section combined rectangular pipe in the simulated state data of the target construction stage are determined in the following manner. ， in, The displacement vector is composed of simulated soil displacement data of the construction area during the target construction stage and simulated pipe jacking displacement data. The total stiffness matrix for the target construction stage is... This is the equivalent force vector of the jacking force in the target construction stage. Let be the interaction force vector generated by the deformation of the rectangular pipe jacking unit constructed in the construction stage prior to the target construction stage.

4. The method according to claim 3, characterized in that, The method further includes: The interaction force vector is determined in the following manner: ， in, n The first number of the plurality of simulated rectangular jacking pipe units. m For the first i The second number of contact objects for a simulated rectangular jacking pipe unit. For the first i The simulated rectangular jacking pipe unit and the first j Contact stiffness matrix between contacting objects For the first i The simulated rectangular jacking pipe unit and the first j The relative displacement vector between contacting objects.

5. The method according to claim 1, characterized in that, The step of determining whether the construction status of the multi-section combined rectangular jacking pipe deviates from expectations at the current moment, based on the current state data, the current soil displacement data, the simulated state dataset of the multi-section combined rectangular jacking pipe, and the simulated soil displacement dataset of the construction area, includes: Determine the current construction stage of the multi-section combined rectangular jacking pipe at the current moment; From the simulated state dataset and the simulated soil displacement dataset, determine the construction stage corresponding to the current construction stage, the current simulated state data of the multi-section combined rectangular jacking pipe, and the current simulated soil displacement data of the construction area; Based on the current state data, the current soil displacement data, the current simulated state data, and the current simulated soil displacement data, error analysis is performed to determine whether the construction state of the multi-section combined rectangular jacking pipe at the current moment deviates from the expectation.

6. The method according to any one of claims 1 to 5, characterized in that, The process of determining the construction instructions for the multi-section combined rectangular jacking pipe at the current moment based on the target soil parameters and the target structure contact parameters includes: Based on the target soil parameters and the target structure contact parameters, the initial numerical model is modified to obtain the modified numerical model; Based on the modified numerical model, the construction instructions are determined using an optimization objective function, wherein the optimization objective function is used to minimize the displacement deviation and instruction adjustment deviation caused by the current construction stage and the subsequent construction stages. ， in, The optimization objective function is... This is the construction instruction vector corresponding to the construction instruction to be optimized. This refers to the current construction phase. This is the third quantity for multiple construction phases. For the current construction phase, due to construction instructions The resulting displacement vector Let this be the target value of the displacement vector for the current construction phase. For regularization parameters, This is a reference construction instruction vector.

7. A construction instruction determination device for a multi-section combined rectangular pipe jacking system, characterized in that, include: The data acquisition module is used to acquire the current status data of the multi-section combined rectangular jacking pipe at the current moment, as well as the current soil displacement data of the construction area. The multi-section combined rectangular jacking pipe includes multiple rectangular jacking pipe units and the connection structure between the multiple rectangular jacking pipe units. The first determining module is used to determine, based on the current state data, the current soil displacement data, the simulated state dataset of the multi-section combined rectangular jacking pipe, and the simulated soil displacement dataset of the construction area, whether the construction state of the multi-section combined rectangular jacking pipe at the current moment deviates from the expectation. The simulated soil displacement dataset includes simulated state data of the multi-section combined rectangular jacking pipe at multiple construction stages, and the simulated soil displacement dataset includes simulated soil displacement data of the construction area at the multiple construction stages. The second determining module is used to determine the target soil parameters and target structural contact parameters of the construction area at the current moment, based on the current state data and the current soil displacement data, when the construction state of the multi-section combined rectangular jacking pipe deviates from the expectation at the current moment. The target structural contact parameters refer to the parameters that affect the mechanical transmission between the rectangular jacking pipe unit and the soil of the construction area, as well as the mechanical transmission between rectangular jacking pipe units. The third determining module is used to determine the construction command of the multi-section combined rectangular jacking pipe at the current moment based on the target soil parameters and the target structure contact parameters.

8. A non-volatile storage medium, characterized in that, The non-volatile storage medium stores multiple instructions, which are adapted to be loaded by a processor and executed by the method for determining construction instructions for multi-section combined rectangular jacking pipe according to any one of claims 1 to 6.

9. An electronic device, characterized in that, include: One or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to implement the construction instruction determination method for multi-section combined rectangular jacking pipe according to any one of claims 1 to 6.

10. A computer program product comprising computer instructions, characterized in that, When the computer instructions are executed by the processor, they implement the construction instruction determination method for the multi-section combined rectangular jacking pipe as described in any one of claims 1 to 6.

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