CN116540560A - Simulation method and device of foundation pit support structure, electronic equipment and storage medium - Google Patents

Simulation method and device of foundation pit support structure, electronic equipment and storage medium Download PDF

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Publication number
CN116540560A
CN116540560A CN202310503637.1A CN202310503637A CN116540560A CN 116540560 A CN116540560 A CN 116540560A CN 202310503637 A CN202310503637 A CN 202310503637A CN 116540560 A CN116540560 A CN 116540560A
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China
Prior art keywords
foundation pit
simulation
simulated
load
excavation
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孙九春
王海涛
吴圣伟
曹虹
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Tengda Construction Group Co Ltd
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Tengda Construction Group Co Ltd
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Priority to CN202310503637.1A priority Critical patent/CN116540560A/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B17/00Systems involving the use of models or simulators of said systems
    • G05B17/02Systems involving the use of models or simulators of said systems electric
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation

Abstract

The invention discloses a simulation method and device of a foundation pit support structure, electronic equipment and a storage medium. The method is characterized by comprising the following steps: obtaining simulated excavation supporting information of a simulated foundation pit excavation supporting, and determining a foundation pit simulation load of foundation pit simulation according to the simulated excavation supporting information; obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, and determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range; and simulating the foundation pit excavation supporting process according to the simulated enclosing structure and the foundation pit simulated load, and determining the deformation process of the simulated enclosing structure. The dynamic mechanical response to stratum and the enclosure structure in the foundation pit excavation supporting is realized, the dynamic process of foundation pit deformation control in the foundation pit excavation supporting can be reflected, and the feasibility and the stability of a control algorithm in the simulation process are automatically evaluated.

Description

Simulation method and device of foundation pit support structure, electronic equipment and storage medium
Technical Field
The invention relates to the field of foundation pit excavation supporting simulation, in particular to a simulation method, a simulation device, electronic equipment and a storage medium of a foundation pit support structure.
Background
The deformation control of the foundation pit excavation, the support and the enclosure structure is an important link in the foundation pit engineering, and due to the workload and the specificity of the foundation pit excavation engineering, the experiment of the deformation control of the enclosure structure in the foundation pit excavation is difficult to realize through the field excavation of the foundation pit, the support of the enclosure structure and the experimental simulation. In order to simulate the experiment of the foundation pit excavation supporting process, and to save costs and personnel safety, the foundation pit excavation is usually simulated by a similar theory. In the prior art, a fixed simulation device or a simulation model is usually arranged for different strata, and although corresponding stratum simulation information can be obtained, the dynamic process of foundation pit deformation control cannot be embodied, and the control performance of a control algorithm on an enclosure structure in the foundation pit excavation supporting process cannot be evaluated.
Disclosure of Invention
The invention provides a simulation method, a simulation device, electronic equipment and a storage medium of a foundation pit support structure, so as to realize full-automatic accurate test of window application.
According to an aspect of the present invention, there is provided a simulation method of a foundation pit support structure, including:
obtaining simulated excavation supporting information of a simulated foundation pit excavation supporting, and determining a foundation pit simulation load of foundation pit simulation according to the simulated excavation supporting information;
Obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, and determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range;
and simulating the foundation pit excavation supporting process according to the simulated enclosing structure and the foundation pit simulated load, and determining the deformation process of the simulated enclosing structure.
According to another aspect of the present invention, there is provided a simulation apparatus for a foundation pit enclosure, including:
the simulated load determining module is used for acquiring simulated excavation supporting information of the simulated foundation pit excavation supporting and determining a foundation pit simulated load of the foundation pit simulation according to the simulated excavation supporting information;
the support structure determining module is used for obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, and determining a simulation support structure of foundation pit simulation according to the foundation pit deformation range;
and the foundation pit excavation supporting simulation module is used for simulating the foundation pit excavation supporting process according to the simulated enclosure structure and the foundation pit simulation load and determining the deformation process of the simulated enclosure structure.
According to another aspect of the present invention, there is provided an electronic apparatus including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the method of simulating a foundation pit enclosure according to any one of the embodiments of the present invention.
According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to implement the simulation method of the foundation pit enclosure according to any one of the embodiments of the present invention when executed.
According to the technical scheme, the simulated excavation supporting information of the simulated foundation pit excavation supporting is obtained, the simulated foundation pit simulation load of the foundation pit excavation supporting is determined according to the simulated excavation supporting information, the actual foundation pit excavation data is determined by determining the simulated foundation pit excavation supporting scene, the load of the simulated foundation pit excavation supporting is determined, the experimental scene can be attached, and the experimental accuracy is improved; obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range, selecting the strength and the material of the simulation enclosure structure according to real-time excavation data, meeting the simulation requirement, and preventing simulation deviation; according to the simulation of the supporting structure and the foundation pit simulation load, the foundation pit excavation supporting process is simulated, the deformation process of the simulation of the supporting structure is determined, the foundation pit excavation supporting simulation is carried out on the whole foundation pit excavation supporting process through the simulation load and the supporting structure, the supporting structure response and the dynamic change process are determined in the whole load loading process, the dynamic process of foundation pit deformation control in the foundation pit excavation supporting process can be reflected, the technical problem that the dynamic response process of the foundation pit supporting structure cannot be simulated in the prior art is solved, the dynamic mechanical response of stratum and the supporting structure in the foundation pit excavation supporting process is realized, and the feasibility and the stability of a control algorithm in the simulation process are automatically evaluated.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a simulation method of a foundation pit support structure according to a first embodiment of the present invention;
FIG. 2 is a flow chart of another simulation method of a foundation pit support structure according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a simulation apparatus for a foundation pit enclosure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a simulation of an initial state of a foundation pit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a simulation device of a foundation pit support structure according to a third embodiment of the present invention;
Fig. 6 is a schematic structural diagram of an electronic device implementing a simulation method of a foundation pit enclosure according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Example 1
Fig. 1 is a flowchart of a simulation method of a foundation pit support structure according to an embodiment of the present invention, where the method may be performed by a simulation device of a foundation pit support structure, the simulation device of the foundation pit support structure may be implemented in hardware and/or software, and the simulation device of the foundation pit support structure may be configured in an electronic device. As shown in fig. 1, the method includes:
S110, obtaining simulated excavation supporting information of the simulated foundation pit excavation supporting, and determining foundation pit simulation load of foundation pit simulation according to the simulated excavation supporting information.
The foundation pit excavation supporting device is used for excavating the foundation pit through the excavating equipment in a mutually matched mode, and a corresponding foundation pit supporting device is arranged.
The simulated excavation supporting information can be excavation supporting information to be simulated in a foundation pit excavation process and a fence supporting process. By way of example, simulated excavation supporting information may include resting earth pressure, passive earth pressure, active earth pressure, and foundation pit deformation range.
The foundation pit simulation load can be a load applied to the enclosure structure in the process of indoor simulation foundation pit excavation supporting. The foundation pit simulation load can be used for applying load to the indoor simulation model.
Specifically, aiming at a simulation scene of simulating foundation pit excavation supporting, simulation excavation supporting information in the actual excavation supporting process is determined, and the simulation excavation supporting information is converted into foundation pit simulation load simulated by an indoor foundation pit excavation supporting model according to a simulation similarity theory. The similarity theory may be that the model is similar to the corresponding element of the prototype in the model simulation process.
Optionally, in another optional embodiment of the present invention, the simulated excavation supporting information includes a static soil pressure, a passive soil pressure, and an active soil pressure; determining a foundation pit simulation load of foundation pit simulation according to the simulated excavation supporting information, wherein the foundation pit simulation load comprises: respectively obtaining similar size ratio of foundation pit simulation and stiffness of an equivalent soil spring;
determining the foundation pit static load according to the similar size ratio and the static soil pressure;
and respectively carrying out spring load simulation on the active soil pressure and the passive soil pressure according to the similar size ratio and the stiffness of the equivalent soil spring, determining the load which is detected to achieve the simulation of the active soil pressure as the excavation load of the foundation pit in the spring load simulation process, and determining the load which is detected to achieve the simulation of the passive soil pressure as the support load of the foundation pit.
The static soil pressure can be the pressure of soil on the enclosure structure when the fence structure is static and the soil is in an elastic balance state when the foundation pit is not excavated yet, and is called the static soil pressure. The static load of the foundation pit can be static before the excavation of the foundation pit is simulated. Optionally, the static soil pressure can be used to simulate the state of the foundation pit before excavation and/or the state of the foundation pit support structure after support. The static load of the foundation pit can be a load applied to the simulated enclosure structure when the excavation process of the simulated foundation pit is not started. The static load of the foundation pit can be used for keeping the simulated fence structure static.
The active soil pressure can be the soil pressure applied to the fence structure when the soil body after the fence structure reaches an active limit balance state and a sliding surface appears due to the fact that the soil body is applied to the fence structure due to the fact that the foundation pit is excavated in the foundation pit excavation supporting process, and the fence structure is enabled to be displaced or deformed. Optionally, the active soil pressure can be used for simulating the state that the pit enclosure structure is elastically deformed by load during pit excavation. The foundation pit excavation load can be a load which is applied to the simulated enclosure structure to deform the enclosure structure when the simulated foundation pit begins to excavate. The foundation pit excavation load can be used for enabling the simulated fence structure to elastically deform.
The passive soil pressure can be the soil pressure applied to the fence structure when the soil body after the fence structure reaches a passive limit balance state and a sliding surface appears through reinforcing or adding a plurality of foundation pit support structures in the foundation pit excavation supporting process, so that the soil body is displaced under the pressure of the fence structure. Alternatively, the passive soil pressure can be used to simulate an index that is applied to the foundation pit support structure to cause elastic deformation of the foundation pit support structure in the foundation pit support process. The foundation pit supporting load can be a load applied to the simulated enclosure structure to restore the elastic deformation of the enclosure structure when the foundation pit supporting process is simulated. The foundation pit supporting load can be used for enabling the simulated fence structure to recover the load which is elastically deformed in the process of simulating the foundation pit excavation supporting. The method includes the steps of calculating the passive soil pressure and the active soil pressure in the corresponding foundation pit excavation and supporting process according to the characteristic parameters of the soil body in the actual excavation scene through the Rankine soil pressure theory.
The similar size ratio can be the one-to-one corresponding similar ratio of the similar simulation and each size of the actual foundation pit excavation supporting scene when the foundation pit excavation supporting is simulated through the similar theory.
The equivalent soil spring can be a soil spring equivalent to the soil body in the actual foundation pit excavation supporting scene. By way of example, the equivalent soil spring of the soil body can be calculated by converting the soil body in the actual excavation supporting process through an m-method.
Optionally, according to a similar theory of model simulation, aiming at an actual excavation scene of foundation pit simulation, determining a similar size ratio of the actual excavation scene to the simulated foundation pit excavation, determining a soil body under the actual excavation scene, converting the soil body in the excavation supporting process into an equivalent soil spring, according to the similar size ratio and static soil pressure, keeping a stress ratio of the foundation pit excavation supporting and the simulation model under the actual excavation scene to be 1, calculating and determining a static load of the foundation pit, and carrying out spring load simulation on active soil pressure and passive soil pressure. Wherein, when detecting that the shrinkage of the spring is equal to the preset shrinkage of the passive soil pressure and/or the active soil pressure by the detecting device, determining that the load applied to the spring can simulate the active soil pressure and/or the passive soil pressure.
S120, obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, and determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range.
The foundation pit deformation can be displacement generated by the foundation pit support structure under the action of internal and external pressure difference in the actual foundation pit excavation supporting process; the deformation range of the foundation pit can be the deformation control of the foundation pit support structure in different foundation pit excavation under the foundation pit excavation standard requirement. The foundation pit deformation range can be used for stably controlling the foundation pit in the foundation pit excavation supporting process.
The simulation building enclosure can be a device for simulating the foundation pit building enclosure in an indoor foundation pit excavation supporting process. The simulation enclosure structure can be used for meeting the requirement of visual monitoring while dynamic elastic change in the foundation pit simulation load process is met. For example, the simulated enclosure may select a deformed sheet of material type and thickness based on the simulated load of the foundation pit.
Specifically, a construction specification in a foundation pit excavation supporting project is obtained, a foundation pit deformation range in an actual excavation foundation pit is determined, and a simulation enclosure structure conforming to the foundation pit deformation range is determined based on a similarity theory.
Optionally, in another optional embodiment of the present invention, the determining a simulated enclosure structure of the foundation pit according to the deformation range of the foundation pit includes:
Performing deformation simulation trial calculation on the plurality of foundation pit support structures based on a plate shell theory;
and under the condition that the foundation pit support structure meets the deformation range of the foundation pit, determining the foundation pit support structure as a simulation support structure for foundation pit simulation.
The plate shell theory can be an engineering simplification theory that the basic theory of elastic mechanics is specifically applied to the plate shell structure.
The foundation pit enclosure may be a pre-set plurality of deformed sheets of different materials and thicknesses. The foundation pit support structure can carry out corresponding elastic deformation according to the received load. In the foundation pit excavation supporting simulation process, load is applied to the simulation building envelope, the simulation building envelope is required to meet the load and generate obvious elastic deformation meeting the deformation range, and the material and the thickness of the foundation pit building envelope are required to be subjected to trial calculation to determine the foundation pit building envelope meeting the requirement of a simulation experiment.
Specifically, a foundation pit deformation range simulating foundation pit excavation supporting is obtained, deformation simulation trial calculation is carried out on a plurality of foundation pit support structures with different materials and thicknesses based on a plate shell theory, whether the foundation pit support structures meet the foundation pit deformation range is determined, and the foundation pit support structures meeting the foundation pit deformation range are used as simulation support structures for foundation pit simulation.
S130, simulating a foundation pit excavation supporting process according to the simulated enclosure structure and the foundation pit simulated load, and determining a deformation process of the simulated enclosure structure.
The deformation process can be a process of simulating elastic deformation of the enclosure structure under the foundation pit simulation load. The deformation process can be used to simulate the support capacity of the fence support structure during the foundation pit excavation support process.
Optionally, before the foundation pit excavation supporting is simulated, corresponding constraint conditions are applied to the simulated building envelope according to the type and geological environment of the building envelope set in the actual excavation scene, and the simulated building envelope is used for fitting the building envelope and the geological environment in the actual excavation scene.
Specifically, in the process of simulating foundation pit excavation supporting, load is applied to the simulated enclosure structure according to foundation pit simulation load, elastic deformation of the simulated enclosure structure is observed, the simulated enclosure structure is supported in the stage of entering the enclosure supporting of foundation pit excavation supporting, and the deformation recovery process of the simulated enclosure structure in the supporting process is continuously observed.
Optionally, in another optional embodiment of the present invention, the foundation pit analog load includes a foundation pit static load; before the foundation pit excavation supporting process is simulated according to the simulated enclosing structure and the foundation pit simulated load, and the deformation process of the simulated enclosing structure is determined, the method further comprises the following steps:
Simulating the initial state of the foundation pit according to the static load of the foundation pit and the simulated enclosure structure; the foundation pit initial state is a state that the foundation pit is not excavated.
Specifically, when the foundation pit excavation supporting is simulated, according to the foundation pit excavation supporting process, when the foundation pit is not excavated, a corresponding load is applied to the simulated enclosure structure according to the static load of the foundation pit so as to simulate the initial state of the foundation pit which is not excavated.
According to the technical scheme, the simulated excavation supporting information of the simulated foundation pit excavation supporting is obtained, the simulated foundation pit load of the foundation pit simulation is determined according to the simulated excavation supporting information, the simulated scene of the foundation pit excavation supporting is determined, the excavation data of real excavation is determined, the load of the simulated foundation pit excavation supporting is determined, the experimental scene can be attached, and the accuracy of the experiment is improved; obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range, selecting the strength and the material of the simulation enclosure structure according to real-time excavation data, meeting the simulation requirement, and preventing simulation deviation; according to the simulation of the supporting structure and the foundation pit simulation load, the foundation pit excavation supporting process is simulated, the deformation process of the simulation of the supporting structure is determined, the excavation supporting simulation is carried out on the whole foundation pit excavation supporting process through the simulation load and the supporting structure, the supporting structure response and the dynamic change process in the whole load loading process are determined, the dynamic process of foundation pit deformation control in the foundation pit excavation supporting process can be reflected, the technical problem that the dynamic response process of the foundation pit supporting structure cannot be simulated in the prior art is solved, the dynamic mechanical response of stratum and the supporting structure in the foundation pit excavation supporting process is realized, and the feasibility and the stability of a control algorithm in the simulation process are automatically evaluated.
Example two
Fig. 2 is a flowchart of another simulation method of a foundation pit support structure according to the second embodiment of the present invention, where the relationship between the present embodiment and the above embodiments is a specific method for controlling the foundation pit simulation load and simulating the foundation pit excavation supporting process by simulating the support structure. As shown in fig. 2, the simulation method of the foundation pit support structure includes:
s210, obtaining simulated excavation supporting information of the simulated foundation pit excavation supporting, and determining foundation pit simulation load of foundation pit simulation according to the simulated excavation supporting information.
S220, obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, and determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range.
And S230, controlling the foundation pit simulation load and the simulation building enclosure to simulate the foundation pit excavation process according to a preset control algorithm, and determining the deformation process of the building enclosure in the foundation pit excavation process.
The control algorithm can be a preset algorithm for controlling the simulated load of the foundation pit to apply load to the simulated enclosure structure and remove load. The control algorithm may be, for example, a PID (proportion integration differentiation) control algorithm.
Optionally, the foundation pit excavation supporting process includes a foundation pit excavation process and a foundation pit supporting process. For example, during the actual excavation process of the foundation pit, the soil around the foundation pit can apply active soil pressure to the foundation pit support structure due to the progress of excavation of the foundation pit, and during the support process of the foundation pit, the soil around the foundation pit can apply passive soil pressure to the foundation pit support structure.
Specifically, load is applied to the simulated enclosure structure through the static load of the foundation pit, the static state of the foundation pit which is not excavated is simulated, when the foundation pit excavation simulation is started, load is applied to the simulated enclosure structure according to the simulated load of the foundation pit based on a preset control algorithm, and therefore the pressure applied to the enclosure structure by the soil body when the foundation pit is excavated is simulated. And in the process of applying load to the simulated enclosure, observing the deformation process of the simulated enclosure in real time, and determining the deformation process of the foundation pit enclosure in the process of excavating the foundation pit.
When the foundation pit excavation supporting process is simulated, the same foundation pit static load can be applied to two corresponding directions of the simulated enclosing structure to simulate the static soil pressure when the foundation pit is not excavated, when the foundation pit is excavated, the load in one direction is reduced to simulate the soil pressure applied by the soil body to the foundation pit enclosing structure, and the deformation process of the foundation pit enclosing structure in the load reducing process is observed.
Optionally, in another optional embodiment of the present invention, the foundation pit simulation load includes a foundation pit excavation load; the method for determining the deformation process of the foundation pit support structure in the foundation pit excavation process comprises the following steps of:
Switching a preset control algorithm from a pressure closed-loop control algorithm to a position closed-loop control algorithm;
and simulating the foundation pit excavation process of the simulated enclosure structure according to the position closed-loop control algorithm and the foundation pit excavation load, and determining the deformation process of the enclosure structure of the foundation pit in the foundation pit excavation process.
The pressure closed-loop control algorithm can be a control algorithm for controlling the load applied to the simulated enclosure structure not to change.
The position closed-loop control algorithm can be a control algorithm for controlling the application position corresponding to the load applied to the simulated enclosure structure not to change.
Alternatively, a pressure closed-loop control algorithm and a position closed-loop control algorithm can be used to implement the simulated foundation pit excavation supporting process.
Specifically, in the process of simulating foundation pit excavation, determining that a simulation process in the process of simulating foundation pit excavation accords with an actual foundation pit excavation scene through a pressure closed-loop control algorithm, applying foundation pit excavation load to the simulated enclosure, simulating soil pressure applied to the enclosure when soil in the actual excavation scene is excavated, switching the pressure closed-loop control algorithm to a position closed-loop control algorithm, and applying foundation pit excavation load to the simulated enclosure to realize that the soil reaches an active limit balance state in the process of simulating actual excavation and a sliding surface appears, wherein the soil body applies active soil pressure to the simulated enclosure. And in the process of applying foundation pit excavation load to the simulated enclosure, observing the deformation process of the simulated enclosure in real time, and determining the deformation process of the foundation pit enclosure in the process of excavating the foundation pit.
S240, controlling the foundation pit simulation load and the simulation support process of the simulation support structure according to a preset control algorithm, and determining the deformation process of the support structure of the foundation pit in the support process of the foundation pit.
Specifically, after the foundation pit excavation supporting process is simulated, the simulated enclosure structure is elastically deformed and subjected to active soil pressure simulated by a position closed-loop control algorithm, the simulated enclosure structure is in a balanced state, the load is applied to the simulated enclosure structure according to the foundation pit simulation load based on a preset control algorithm by supporting the simulated enclosure structure, and the pressure applied to a soil body by the enclosure structure when the foundation pit supporting is simulated. When a supporting load is applied to the simulated enclosure structure, the deformation process of the simulated enclosure structure is observed in real time, and the deformation process of the foundation pit enclosure structure in the foundation pit supporting process is determined.
Optionally, in another optional embodiment of the present invention, the foundation pit simulation load includes a foundation pit supporting load; the method for determining the deformation process of the foundation pit support structure in the foundation pit support process comprises the steps of:
switching a preset control algorithm from a position closed-loop control algorithm to a pressure closed-loop control algorithm; and simulating a foundation pit supporting process of the simulated enclosure structure according to the pressure closed-loop control algorithm and the foundation pit supporting load, and determining the deformation process of the foundation pit enclosure structure in the foundation pit supporting process.
Specifically, in the process of simulating foundation pit supporting, determining that a simulation process in the process of simulating foundation pit supporting accords with an actual foundation pit supporting scene through a position closed-loop control algorithm, applying foundation pit supporting load to the simulated enclosing structure, simulating soil pressure applied by soil body when the enclosing structure is supported in the actual supporting scene, switching the position closed-loop control algorithm to a pressure closed-loop control algorithm, and applying foundation pit supporting load to the simulated enclosing structure to realize that the soil body in the process of simulating actual supporting reaches a passive limit balance state and a sliding surface appears, and applying passive soil pressure to the simulated enclosing structure by the soil body. And in the process of applying foundation pit supporting load to the simulated enclosure structure, observing the deformation process of the simulated enclosure structure in real time, and determining the deformation process of the foundation pit enclosure structure in the foundation pit supporting process.
According to the technical scheme, simulated excavation supporting information of the simulated foundation pit excavation supporting is obtained, and the simulated foundation pit load of the foundation pit simulation is determined according to the simulated excavation supporting information; obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, and determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range; controlling the foundation pit simulation load and the simulation building enclosure to simulate the foundation pit excavation process according to a preset control algorithm, and determining the deformation process of the foundation pit building enclosure in the foundation pit excavation process; and/or controlling the foundation pit simulation load and the simulation support process of the simulation support structure according to a preset control algorithm, and determining the deformation process of the support structure of the foundation pit in the support process of the foundation pit. The method comprises the steps of carrying out excavation supporting simulation on the whole foundation pit excavation supporting process based on a preset control algorithm, applying different loads according to different foundation pit excavation supporting stages, carrying out simulation control through different control algorithms, observing the response and dynamic change process of the enclosure structure, and being capable of reflecting the dynamic process of foundation pit deformation control in the foundation pit excavation supporting, solving the technical problem that the dynamic response process of the enclosure structure of the foundation pit cannot be simulated in the prior art, realizing dynamic mechanical response of stratum and the enclosure structure in the foundation pit excavation supporting, and automatically evaluating the feasibility and stability of the control algorithm in the simulation process.
Optionally, another simulation method of the foundation pit support structure provided by the embodiment of the invention includes:
s1, according to the actual excavation depth of the foundation pit to be simulated and the simulated indoor environment simulating excavation of the foundation pit, confirming the similar size ratio of the actual excavation foundation pit to the simulated excavation foundation pit.
S2, determining static soil pressure according to the real geological environment of the foundation pit actually excavated, and calculating and confirming load through the static soil pressure.
And S3, combining characteristic parameters of soil in an actual excavation environment, and calculating the active soil pressure and the passive soil pressure in the corresponding foundation pit excavation and supporting process according to the Rankine soil pressure theory.
S4, combining characteristic parameters of soil in an actual excavation environment, and converting the stiffness of the equivalent soil spring based on an m-method.
And S5, determining that the stress ratio of the simulation model test and the actual excavation test is kept to be 1 according to a similarity theory, and determining the static load of the foundation pit by carrying out spring load similarity confirmation.
S6, according to the deformation range of the foundation pit required by the specification, combining the visual dynamic monitoring effect, and determining the deformation range of the foundation pit model.
S7, FIG. 3 is a schematic diagram of a simulation device of a foundation pit support structure provided by the embodiment of the invention. As shown in fig. 3: and carrying out load arrangement on the simulation device in the indoor simulation site, and adding various constraint conditions to the bottom of the sheet structure according to the enclosure structure and geological investigation in the actual excavation scene. The elastic deformation sheet can be set to simulate an enclosure structure, and corresponding load loading modules are respectively arranged on two sides of the elastic deformation sheet, wherein each load loading module comprises a row loading module and a column loading module.
S8, based on the plate shell theory, performing deformation trial calculation on the elastic deformation thin plate, confirming the material type and thickness of the elastic deformation thin plate, and determining that the elastic deformation thin plate used for simulation meets the deformation range of the foundation pit.
S9, according to a pid control algorithm, position closed-loop control and pressure closed-loop control are realized through a position closed-loop control algorithm and a pressure closed-loop control algorithm, and the foundation pit deformation control theory is combined, so that the autonomous control of the foundation pit deformation is realized, and the compensation and the dynamic monitoring of the elastic deformation sheet deformation are realized.
In an exemplary embodiment of the present invention, simulation experiments may be performed in the load loading module of fig. 3 by a micro belt-guided high-precision servo electric cylinder, a micro belt rotary encoder high-precision stepping electric cylinder, linear and nonlinear springs, a high-precision micro load cell, and an axial force supporting ejector rod, and compensation and dynamic monitoring of deformation of an elastically deformed sheet may be obtained. Specifically, the dynamic monitoring algorithm may be as follows, example one: recording the pushing distance of the electric cylinder according to the high-precision encoder; recording the high-precision encoder point position when the load is increased from 0; recording the position change of the encoder according to the load change of the load cell; and calculating the deformation of the elastic deformation sheet according to the screw pitch and the number of turns. Example two: the load change of the load cell and the calibration of the spring deformation and the load relation can be directly calculated. For a linear spring, the calculation can be directly performed according to hooke's law. Example three: monitoring is performed by using a high-precision 3D laser scanner and a visual algorithm. Example four: and a reciprocating sliding rail structure is utilized to install the high-precision non-contact displacement sensor.
S10, FIG. 4 is a schematic diagram of simulation of an initial state of a foundation pit according to an embodiment of the present invention. As shown in fig. 4: and respectively applying static load of the foundation pit to the two ends of the elastic deformation sheet by using matrix multipoint loading modules on the two sides of the elastic deformation sheet, so as to simulate the initial state of the foundation pit in the initial state of the stratum.
S11, partially unloading the matrix multipoint loading modules at one side of the matrix multipoint loading modules at two sides of the elastic deformation sheet to simulate the state of the excavated foundation pit.
S12, partially supporting the matrix multipoint loading modules at one side of the matrix multipoint loading modules at two sides of the elastic deformation sheet to simulate the state of the foundation pit after supporting.
S13, by applying disturbance on opposite supporting surfaces, the problems of feasibility, stability and robustness of the evaluation control algorithm can be further solved.
According to the technical scheme provided by the embodiment of the invention, different loads can be applied according to different foundation pit excavation supporting stages, simulation control is performed through different control algorithms, the response and dynamic change process of the enclosure structure are observed, the dynamic process of foundation pit deformation control in foundation pit excavation supporting can be reflected, the technical problem that the dynamic response process of the enclosure structure of the foundation pit cannot be simulated in the prior art is solved, the dynamic mechanical response of the stratum and the enclosure structure in the foundation pit excavation supporting is realized, and the feasibility and the stability of the control algorithm in the simulation process are automatically evaluated.
Example III
Fig. 5 is a schematic structural diagram of a simulation device for a foundation pit support structure according to a third embodiment of the present invention. As shown in fig. 5, the apparatus includes: a simulated load determination module 510, an envelope determination module 520, and a foundation pit excavation supporting simulation module 530, wherein,
the simulated load determining module 510 is configured to obtain simulated excavation supporting information of a simulated foundation pit excavation supporting, and determine a simulated load of the foundation pit simulated by the foundation pit according to the simulated excavation supporting information;
the building envelope determining module 520 is configured to obtain a foundation pit deformation range for foundation pit excavation supporting simulation, and determine a simulation building envelope for foundation pit simulation according to the foundation pit deformation range;
the foundation pit excavation supporting simulation module 530 is configured to determine a deformation process of the simulated enclosure structure according to the simulated enclosure structure and the foundation pit simulation load.
According to the technical scheme, the simulated excavation supporting information of the simulated foundation pit excavation supporting is obtained, the simulated foundation pit simulation load of the foundation pit excavation supporting is determined according to the simulated excavation supporting information, the actual foundation pit excavation data is determined by determining the simulated foundation pit excavation supporting scene, the load of the simulated foundation pit excavation supporting is determined, the experimental scene can be attached, and the experimental accuracy is improved; obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range, selecting the strength and the material of the simulation enclosure structure according to real-time excavation data, meeting the simulation requirement, and preventing simulation deviation; according to the simulation of the supporting structure and the foundation pit simulation load, the foundation pit excavation supporting process is simulated, the deformation process of the simulation of the supporting structure is determined, the foundation pit excavation supporting simulation is carried out on the whole foundation pit excavation supporting process through the simulation load and the supporting structure, the supporting structure response and the dynamic change process are determined in the whole load loading process, the dynamic process of foundation pit deformation control in the foundation pit excavation supporting process can be reflected, the technical problem that the dynamic response process of the foundation pit supporting structure cannot be simulated in the prior art is solved, the dynamic mechanical response of stratum and the supporting structure in the foundation pit excavation supporting process is realized, and the feasibility and the stability of a control algorithm in the simulation process are automatically evaluated.
Optionally, the foundation pit excavation supporting process comprises a foundation pit excavation process and a foundation pit supporting process; the foundation pit excavation supporting simulation module is specifically used for:
controlling the foundation pit simulation load and the simulation building enclosure to simulate the foundation pit excavation process according to a preset control algorithm, and determining the deformation process of the foundation pit building enclosure in the foundation pit excavation process; and/or the number of the groups of groups,
and controlling the foundation pit simulation load and the simulation support structure to simulate the foundation pit supporting process according to a preset control algorithm, and determining the deformation process of the foundation pit support structure in the foundation pit supporting process.
Optionally, the foundation pit simulation load comprises a foundation pit excavation load; the foundation pit excavation supporting simulation module is specifically further used for:
switching a preset control algorithm from a pressure closed-loop control algorithm to a position closed-loop control algorithm;
and simulating the foundation pit excavation process of the simulated enclosure structure according to the position closed-loop control algorithm and the foundation pit excavation load, and determining the deformation process of the enclosure structure of the foundation pit in the foundation pit excavation process.
Optionally, the foundation pit simulation load comprises a foundation pit supporting load; the foundation pit excavation supporting simulation module is specifically further used for:
switching a preset control algorithm from a position closed-loop control algorithm to a pressure closed-loop control algorithm;
And simulating a foundation pit supporting process of the simulated enclosure structure according to the pressure closed-loop control algorithm and the foundation pit supporting load, and determining the deformation process of the foundation pit enclosure structure in the foundation pit supporting process.
Optionally, the foundation pit simulation load comprises a foundation pit static load; the device also comprises a foundation pit initial simulation module, wherein the foundation pit initial module is used for simulating the initial state of the foundation pit according to the static load of the foundation pit and the simulation enclosure structure; the foundation pit initial state is a state that the foundation pit is not excavated.
Optionally, the simulated excavation supporting information comprises static soil pressure, passive soil pressure and active soil pressure; the simulation load determining module is specifically used for:
respectively obtaining similar size ratio of foundation pit simulation and stiffness of an equivalent soil spring;
determining the foundation pit static load according to the similar size ratio and the static soil pressure;
and respectively carrying out spring load simulation on the active soil pressure and the passive soil pressure according to the similar size ratio and the stiffness of the equivalent soil spring, and determining the foundation pit excavation load corresponding to the active soil pressure and the foundation pit supporting load corresponding to the passive soil pressure.
Optionally, the building enclosure determining module is specifically configured to:
Performing deformation simulation trial calculation on the plurality of foundation pit support structures based on a plate shell theory;
and under the condition that the foundation pit support structure meets the deformation range of the foundation pit, determining the foundation pit support structure as a simulation support structure for foundation pit simulation.
The simulation device of the foundation pit support structure provided by the embodiment of the invention can execute the simulation method of the foundation pit support structure provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example IV
Fig. 6 shows a schematic diagram of the structure of an electronic device 10 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 6, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the simulation method of the foundation pit enclosure.
In some embodiments, the simulation method of the foundation pit enclosure may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the foundation pit enclosure simulation method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the simulation method of the foundation pit enclosure in any other suitable manner (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
Example five
The present embodiment provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of a simulation method of a foundation pit enclosure as provided in any embodiment of the present invention, the method comprising:
obtaining simulated excavation supporting information of a simulated foundation pit excavation supporting, and determining a foundation pit simulation load of foundation pit simulation according to the simulated excavation supporting information;
obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, and determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range;
and simulating the foundation pit excavation supporting process according to the simulated enclosing structure and the foundation pit simulated load, and determining the deformation process of the simulated enclosing structure.
The computer storage media of embodiments of the invention may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium may be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present invention may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
It will be appreciated by those of ordinary skill in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be centralized on a single computing device, or distributed over a network of computing devices, or they may alternatively be implemented in program code executable by a computer device, such that they are stored in a memory device and executed by the computing device, or they may be separately fabricated as individual integrated circuit modules, or multiple modules or steps within them may be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (10)

1. The simulation method of the foundation pit support structure is characterized by comprising the following steps of:
obtaining simulated excavation supporting information of a simulated foundation pit excavation supporting, and determining a foundation pit simulation load of foundation pit simulation according to the simulated excavation supporting information;
obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, and determining a simulation enclosure structure of foundation pit simulation according to the foundation pit deformation range;
and simulating the foundation pit excavation supporting process according to the simulated enclosing structure and the foundation pit simulated load, and determining the deformation process of the simulated enclosing structure.
2. The method of claim 1, wherein the foundation pit excavation supporting process comprises a foundation pit excavation process and a foundation pit supporting process; the method for determining the deformation process of the simulated building enclosure comprises the following steps of:
controlling the foundation pit simulation load and the simulation building enclosure to simulate the foundation pit excavation process according to a preset control algorithm, and determining the deformation process of the foundation pit building enclosure in the foundation pit excavation process; and/or the number of the groups of groups,
and controlling the foundation pit simulation load and the simulation support structure to simulate the foundation pit supporting process according to a preset control algorithm, and determining the deformation process of the foundation pit support structure in the foundation pit supporting process.
3. The method of claim 2, wherein the foundation pit simulation load comprises a foundation pit excavation load; the method for determining the deformation process of the foundation pit support structure in the foundation pit excavation process comprises the following steps of:
switching a preset control algorithm from a pressure closed-loop control algorithm to a position closed-loop control algorithm;
and simulating the foundation pit excavation process of the simulated enclosure structure according to the position closed-loop control algorithm and the foundation pit excavation load, and determining the deformation process of the enclosure structure of the foundation pit in the foundation pit excavation process.
4. The method of claim 2, wherein the foundation pit simulation load comprises a foundation pit support load; the method for determining the deformation process of the foundation pit support structure in the foundation pit support process comprises the steps of:
switching a preset control algorithm from a position closed-loop control algorithm to a pressure closed-loop control algorithm;
and simulating a foundation pit supporting process of the simulated enclosure structure according to the pressure closed-loop control algorithm and the foundation pit supporting load, and determining the deformation process of the foundation pit enclosure structure in the foundation pit supporting process.
5. The method of claim 1, wherein the foundation pit simulation load comprises a foundation pit static load; before the foundation pit excavation supporting process is simulated according to the simulated enclosing structure and the foundation pit simulated load, and the deformation process of the simulated enclosing structure is determined, the method further comprises the following steps:
simulating the initial state of the foundation pit according to the static load of the foundation pit and the simulated enclosure structure; the foundation pit initial state is a state that the foundation pit is not in progress.
6. The method of claim 1, wherein the simulated excavation support information includes resting earth pressure, passive earth pressure and active earth pressure; determining a foundation pit simulation load of foundation pit simulation according to the simulated excavation supporting information, wherein the foundation pit simulation load comprises:
respectively obtaining similar size ratio of foundation pit simulation and stiffness of an equivalent soil spring;
determining the foundation pit static load according to the similar size ratio and the static soil pressure;
and respectively carrying out spring load simulation on the active soil pressure and the passive soil pressure according to the similar size ratio and the stiffness of the equivalent soil spring, determining the load which is detected to achieve the simulation of the active soil pressure as the excavation load of the foundation pit in the spring load simulation process, and determining the load which is detected to achieve the simulation of the passive soil pressure as the support load of the foundation pit.
7. The method of claim 1, wherein the determining the simulated enclosure of the foundation pit based on the deformation range of the foundation pit comprises:
performing deformation simulation trial calculation on the plurality of foundation pit support structures based on a plate shell theory;
and under the condition that the foundation pit support structure meets the deformation range of the foundation pit, determining the foundation pit support structure as a simulation support structure for foundation pit simulation.
8. The simulation method of the foundation pit support structure is characterized by comprising the following steps of:
the simulated load determining module is used for acquiring simulated excavation supporting information of the simulated foundation pit excavation supporting and determining a foundation pit simulated load of the foundation pit simulation according to the simulated excavation supporting information;
the support structure determining module is used for obtaining a foundation pit deformation range of foundation pit excavation supporting simulation, and determining a simulation support structure of foundation pit simulation according to the foundation pit deformation range;
and the foundation pit excavation supporting simulation module is used for simulating the foundation pit excavation supporting process according to the simulated enclosure structure and the foundation pit simulation load and determining the deformation process of the simulated enclosure structure.
9. An electronic device, the electronic device comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the simulation method of the foundation pit enclosure of any one of claims 1-7.
10. A computer readable storage medium storing computer instructions for causing a processor to perform the method of simulating a foundation pit enclosure of any one of claims 1-7.
CN202310503637.1A 2023-05-06 2023-05-06 Simulation method and device of foundation pit support structure, electronic equipment and storage medium Pending CN116540560A (en)

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