CN-121981375-A - Digital twin-driven long and large open cut tunnel module dividing and intelligent construction method

CN121981375ACN 121981375 ACN121981375 ACN 121981375ACN-121981375-A

Abstract

The invention discloses a digital twin-driven long open cut tunnel module dividing and intelligent construction method, which is based on a digital twin technology, introduces engineering product modularization and factory pipeline operation concepts, provides a digital twin-driven long open cut tunnel module dividing method, innovates a factory construction mode of field wet operation of reinforced concrete of an open cut tunnel, realizes industrialization and intellectualization of field construction operation of the open cut tunnel, comprehensively improves intelligent construction capacity of a main body structure of the open cut tunnel, practically improves field operation efficiency, construction quality and safety level, reduces construction cost and environmental influence, and has important theoretical significance and practical application value.

Inventors

XU TIANDONG
HUANG WEIQIANG
ZHAO YI
Xia Guanping
PENG YONG
HU QIYUAN
LIAO LI
ZHAO DONGBO
YU XIAOZHOU
YANG HAISHENG
WU XIAOLONG
LUO HUIWU
ZHU QING
Xu Xinshuo

Assignees

同济大学

Dates

Publication Date: 20260505
Application Date: 20251224

Claims (7)

1. The digital twin-driven long and large open cut tunnel module dividing and intelligent construction method is characterized by comprising the following steps of: s1, constructing an open cut tunnel parameterized information model; The digital base with geometrical, physical and behavioral attributes is formed through the modularized splitting and combining of the open-cut tunnels, the splitting and combining of the open-cut tunnel information models, the parameterization information model of the open-cut tunnel units and the integration of the open-cut tunnel unit information models, so that the intelligent construction digital twin body data integration and visualization of the open-cut tunnels are realized; S2, establishing a multi-scale finite element model of the open-cut tunnel; Establishing an open-cut tunnel geometric model through information interaction of an open-cut tunnel parameterization information model and an open-cut tunnel multi-scale finite element model, associating working condition parameters, and establishing lining concrete temperature field and stress field calculation models of different working conditions based on a finite element method; s3, constructing a multi-objective optimization model for construction management of the open-cut tunnel; based on the open-cut tunnel parameterized information model, a construction management multi-objective optimization model is established, the model is solved, an open-cut tunnel structure unit module division optimization scheme and a construction plan are determined, and the optimization of comprehensive benefits is sought on the premise of ensuring construction quality safety; S4, dividing an open cut tunnel module driven by a digital twin; combining a construction module division scheme which is determined based on the open-cut tunnel parameterized information model and the open-cut tunnel structure multi-scale finite element model and meets the conditions, and based on the open-cut tunnel intelligent construction management multi-objective optimization model, comprehensively considering construction management objectives, construction process, equipment and constraint conditions, and correcting and optimizing the construction module division scheme of the open-cut tunnel; S5, an open-cut tunnel modularization intelligent construction method; The method is characterized by comprising the steps of realizing the division of a large-scale open-cut tunnel module driven by digital twin based on an open-cut tunnel parameterization information model, an open-cut tunnel structure multi-scale finite element model and an open-cut tunnel construction management multi-objective optimization model, and realizing the assembly line construction operation of the pedigree intelligent mobile construction equipment based on an open-cut tunnel module division scheme and a construction plan.
2. The digital twin-driven long and large open cut tunnel module dividing and intelligent construction method is characterized in that working condition parameters comprise a geometric model, initial conditions, boundary conditions and concrete thermodynamic parameters, the concrete thermodynamic parameters comprise a heat conduction coefficient, a specific heat capacity, a thermal expansion coefficient, a density, an elastic modulus, a poisson ratio, a tensile strength, a compressive strength and the like, the geometric model is built based on an open cut tunnel parameterization information model, the working condition parameters are related, and a finite element method is adopted to build different working condition lining concrete temperature field and stress field calculation models.
3. The method for dividing and intelligently constructing the digital twin-driven long and large open cut tunnel module is characterized in that the open cut tunnel structure unit module is divided and optimized into a large-volume concrete temperature control evaluation model, a concrete structure material and a construction temperature control scheme.
4. The digital twin-driven long and large open cut tunnel module dividing and intelligent construction method is characterized in that the open cut tunnel construction management multi-objective optimization model is characterized in that a group of optimal construction plans and management and control schemes are established under the given constraint conditions through optimizing each divided project construction procedure, construction process and construction mode, and three main objective comprehensive optimization of construction period, quality and cost is achieved, and the open cut tunnel construction management multi-objective optimization model comprises a construction period model, a cost model and a quality model.
5. The method for dividing and intelligently constructing the digital twin-driven long open cut tunnel module is characterized in that the method for solving the multi-objective optimization model for the open cut tunnel construction management is specifically as follows: ① . Chromosome coding; in the proposed model, solutions are encoded as chromosomes, which are represented as Wherein The ith construction procedure is represented by selecting the jth construction process and k construction modes; ② . Initializing Latin hypercube sampling LHS; ③ . A breeding stage; The breeding stage creates a pairing pool through a tournament selection mechanism to generate a offspring population; solutions in the initial population Pt compete by random pairing and evaluate the fitness of each solution based on non-dominant ranking NDS and crowding distance; ④ . Crossover and mutation operations; The algorithm generates a new solution by simulating the binary crossover SBX and the polynomial variation PM; ⑤ . Non-dominant ordering and reference point selection; ⑥ . Selecting offspring; Once solutions are ordered to different fronts, a selection mechanism based on a reference point screens out optimal solutions to form a next generation parent population P t+1 , wherein the mechanism preferentially selects non-dominant solutions with excellent diversity, and the solutions are generally distributed on the pareto fronts and can effectively cover a target space; ⑦ . Iterative convergence; The algorithm circularly executes the steps 2 to 6, the iterative process of the algorithm is used for reaching the preset maximum algebra Gmax or the pareto solution set to be converged as a termination mark, and the final output is the pareto optimal segmentation length and the construction plan set.
6. The digital twin-driven long open cut tunnel module division and intelligent construction method is characterized in that the Latin hypercube sampling LHS initialization is as follows: In the TCQT model based on NSGA-III, LHS is adopted to generate an initial population Pt, the parameter space is divided into hypercube intervals, uniform distribution and diversity of an initial solution set are ensured, a parent population with the scale of N is systematically constructed, solution space clustering is avoided, diversity is guaranteed, then the fitness of each solution is quantized through an objective function, a pareto front system is built by using non-dominant sorting NDS, and the solution set representing the multi-objective optimal trade-off relation is efficiently screened.
7. The method for dividing and intelligently constructing the digital twin-driven long open cut tunnel module is characterized in that the non-dominant sorting and reference point selection are as follows: Combining the offspring population Ot generated by the crossover and mutation operation with the father population Pt to form a combined population Rt with the size of 2N, then carrying out non-dominant sorting on the combined population, layering the solutions according to the dominant relation among the solutions, classifying the solutions which are not subjected to the dominant of other solutions into a first front edge, namely the pareto optimal solution set, and then carrying out solutions subjected to one or more solutions to form subsequent front edges, wherein each front edge represents different non-dominant grades in a target space; under the NSGA-III algorithm framework, a selection mechanism based on a reference point is adopted to maintain the diversity of the population target space, the reference point is predefined on a normalized hyperplane, a power assisting algorithm captures wide tradeoff solutions, potential areas of the solution space are searched in a concentrated mode by reserving non-dominant solutions and eliminating dominant solutions, and the pareto front edge is refined in an iterative mode, so that a long and large open cut tunnel structure construction module division scheme and a construction plan are obtained.

Description

Digital twin-driven long and large open cut tunnel module dividing and intelligent construction method Technical Field The invention belongs to the technical field of intelligent tunnel construction and management, and particularly relates to a digital twin-driven large open cut tunnel module dividing and intelligent construction method. Background The tunnel and the underground engineering develop rapidly, the open cut tunnel has the advantages of relatively simple construction procedures, lower construction cost than the undermining method, relatively easy control of construction quality and the like, so the construction requirements of the open cut tunnel are increased increasingly. The open cut tunnel is generally constructed by adopting a traditional trolley operated by single-point manual operation, and lacks effective intelligent monitoring and scientific industrial assembly line construction modes, and the industrialization and intelligent level of tunnel construction is not high. The modular concept is originally derived from the manufacturing industry of the 20 th century, in order to improve production efficiency, complex problems are decomposed into a plurality of modules of different levels, each module independently completes different works, and finally, the modules are integrated into a whole. The modular concept is applied to open-cut tunnel construction, and the main body structure is subjected to modular decomposition according to construction equipment, open-cut tunnel construction units and lengths, and the whole open-cut tunnel is combined by the decomposed unit modules, so that the open-cut tunnel modular construction is realized, the construction efficiency and quality of the long open-cut tunnel are practically improved, and the construction cost and the construction safety risk are reduced. Disclosure of Invention Aiming at the modularized intelligent construction requirement of the open cut tunnel and the defects of the prior art method, the invention provides a digital twin-driven long and large open cut tunnel module dividing and intelligent construction method, which aims at realizing the digital twin-driven long and large open cut tunnel module dividing and modularized intelligent construction by fusing an open cut tunnel parameterization information model, an open cut tunnel structure multi-scale finite element model and an open cut tunnel construction management multi-objective optimization model. The invention introduces engineering product modularization and factory pipeline operation concepts based on digital twin technology, provides a method for dividing a large-scale open-cut tunnel module driven by digital twin, innovates factory building mode of open-cut tunnel reinforced concrete field wet operation, realizes industrialization and intellectualization of open-cut tunnel field construction operation, comprehensively improves intelligent building capability of an open-cut tunnel main body structure, practically improves field operation work efficiency, construction quality and safety level, reduces construction cost and environmental influence, and has important theoretical significance and practical application value. A digital twin-driven large open cut tunnel module dividing and intelligent construction method specifically comprises the following steps: S1, constructing an open cut tunnel parameterized information model. The open cut tunnel parameterized information model is a basis for realizing digital twin volume data integration and visualization. Firstly, dividing an open-cut tunnel into a group of tunnel space units through modularized dividing and combining of the open-cut tunnel, wherein each main structure unit comprises a cushion layer, a waterproof operation unit, an inverted arch operation unit, a lining operation unit and the like, and secondly, dividing the tunnel structure units into main structure units, supporting structure units, reinforcing treatment and drainage units and the like through dividing and combining of an open-cut tunnel information model, wherein the main structure unit model comprises a cushion layer, a waterproof module, an inverted arch module and a lining module. Thirdly, constructing an open-cut tunnel unit parameterization information model based on open-cut tunnel parameterization logic of prototype evolution, and accurately associating tunnel geometric parameters, material parameters, sensor layout, real-time monitoring data and the like with a three-dimensional structure unit module; and finally, integrating the parameterized information model of the open cut tunnel unit to form a digital base with geometrical, physical and behavioral attributes. S2, establishing a multi-scale finite element model of the open-cut tunnel. The open cut tunnel multi-scale finite element model is a foundation for realizing the intelligent construction module division and the intelligent concrete temperature control of the open cut tunnel. Firstl