CN113535748A - Shield tunneling machine model selection system and method based on historical cases - Google Patents
Shield tunneling machine model selection system and method based on historical cases Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 21
- 238000010276 construction Methods 0.000 claims abstract description 33
- 238000010187 selection method Methods 0.000 claims abstract description 20
- 238000004458 analytical method Methods 0.000 claims description 10
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- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000035699 permeability Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000002002 slurry Substances 0.000 description 6
- 239000004927 clay Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
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- 238000012986 modification Methods 0.000 description 2
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- 239000011435 rock Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000008582 Pinus sylvestris Nutrition 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012854 evaluation process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000001839 pinus sylvestris Substances 0.000 description 1
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Abstract
The invention provides a shield tunneling machine model selection system and a model selection method based on historical cases, wherein the model selection method comprises the following steps: constructing a shield project historical case library and generating a shield machine model selection knowledge base; analyzing the new shield project to generate a plurality of pieces of new shield project general information, and forming a model selection parameter set for model selection of the shield machine by the plurality of pieces of new shield project general information; inputting the type selection parameters in the type selection parameter set, matching the type selection parameters with the shield engineering historical cases in the shield engineering historical case library, and outputting a shield engineering historical case type selection interval; and based on the shield construction project historical case model selection interval and the shield construction machine model selection principle, obtaining the shield construction machine model selection result of the new shield construction project. The shield machine model selection method refers to the completed shield project historical cases based on historical big data, screens out the model selection interval of the shield project historical cases matched with the new shield project, and combines the results of the new shield project and the model selection interval of the shield machine parameters to obtain more accurate model selection results of the shield machine.
Description
Technical Field
The invention belongs to the technical field of shield engineering, and relates to a shield machine model selection system and a model selection method based on historical cases.
Background
With the rapid development of shield engineering construction, more and more projects such as urban rails, tunnel bridges and the like generally use shield technology. The shield technology is an advanced method for excavating tunnels, and is a construction technology which adopts tunneling equipment and integrally propels according to a predicted direction. The shield machines in China are large in number, and in the engineering construction, proper shield machines need to be selected according to the stratum environment, geological hydrology, the surrounding environment and the like for each project so as to ensure the smooth proceeding of the project.
The traditional model selection of the shield machine is to determine the parameters of the shield machine applicable to the project according to the engineering construction experience and scientific reasoning by collecting data such as a geological survey report, hydrogeology, design files, surrounding environment and the like and discussing the data on a plurality of experts. The traditional model selection method is large in workload, long in evaluation period and manual in evaluation, subjective factors are easily introduced due to lack of scientific judgment in the evaluation process, judgment of the model selection result of the shield machine is not facilitated, and the problem of engineering risk is easily caused.
Disclosure of Invention
In order to solve the problems, the invention provides a shield machine model selection system and a model selection method based on historical cases, the shield machine model selection of the new shield engineering utilizes a big data technology, the historical model selection cases of the shield machine under different working conditions are collected and updated, when the shield machine model selection of the new shield engineering is carried out, the historical cases with high matching degree with the new engineering are selected by inputting the general profile of the new engineering and are combined with the model selection opinions given by experts, and the reasonable shield machine model selection result of the new engineering is rapidly given.
The technical scheme for realizing the purpose of the invention is as follows:
on one hand, the invention discloses a shield tunneling machine model selection method based on historical cases, which comprises the following steps:
constructing a shield project historical case library and generating a shield machine model selection knowledge base;
analyzing the new shield project to generate a plurality of pieces of new shield project general information, and forming a model selection parameter set for model selection of the shield machine by the plurality of pieces of new shield project general information;
inputting the type selection parameters in the type selection parameter set, matching the type selection parameters with the shield engineering historical cases in the shield engineering historical case library, and outputting a shield engineering historical case type selection interval;
and based on the shield construction project historical case model selection interval and the shield construction machine model selection principle, obtaining the shield construction machine model selection result of the new shield construction project.
The shield machine model selection method provided by the invention refers to a plurality of completed shield project history cases based on history big data, screens out the model selection interval of the shield project history cases matched with the new shield project by analyzing the shield project history cases and the new shield project, and combines the results of the new shield project and the model selection interval of the shield machine parameters to obtain a more accurate model selection result of the shield machine.
In an embodiment of the present invention, a method for generating a model selection knowledge base of a shield machine includes:
classifying the shield project according to the type of the shield project to establish a shield project case library;
establishing a shield machine case library according to the type of a shield machine, wherein the shield machine case library comprises a shield machine model and a parameter sub-database;
analyzing various types of shield projects, forming project general information, establishing label information corresponding to the project general information, and establishing a label system;
collecting a plurality of shield engineering historical cases, classifying the shield engineering historical cases and storing the classified shield engineering historical cases into corresponding shield engineering case libraries;
analyzing the historical shield project cases to form project general information of the historical shield project, and inputting the project general information of the historical shield project into corresponding label information for storage.
Further, the engineering general information includes regional information, landform information, geological information, hydrological information, geological survey information, and environmental information of the shield engineering.
Further, the analyzing of the shield projects of each type to form the project overview information and establish the label information corresponding to the project overview information includes:
and classifying the general information of each project based on a shield machine model selection principle to form general project general information, important project general information and key project general information, wherein a label system comprises a general label, an important label and a key label.
Furthermore, the shield engineering case library comprises a model selection case database, a risk source database and a safety accident case library.
Preferably, the shield machine case base further includes a shield machine key parameter fault sub-database
In an embodiment of the invention, before inputting the type selection parameters in the type selection parameter set, the method further comprises dividing the type selection parameters into common type selection parameters, important type selection parameters and key type selection parameters according to the type selection principle of the shield machine;
when the type selection parameters in the type selection parameter set are input, extracting important type selection parameters and key type selection parameters in the type selection parameter set, or extracting the key type selection parameters to be matched with the shield project historical cases in the shield project historical case library.
In an embodiment of the invention, the method for selecting the type of the shield machine further comprises the step of updating a shield project historical case library, namely inputting and storing the shield machine selection result of the new shield project and the actual use model and parameters of the shield machine after the new shield project is completed.
In a second aspect, the invention also discloses a shield machine model selection system based on the historical cases, which comprises a historical database module, an input module, a matching analysis module and an output module.
The historical database module comprises a shield tunneling machine database module, a historical case database module and a database updating module. A plurality of shield engineering historical cases are stored in the historical case database module, and a label system of the shield engineering historical cases is stored in a document format; the shield machine database module stores shield machine types and parameters in a document format; and the database updating module is connected with the shield machine database module and the historical case database module and is used for updating the historical cases of the shield engineering and the types and parameters of the shield machine in real time.
The input module is used for inputting the type selection parameters of the new shield project into the matching analysis module.
The matching analysis module is used for outputting a matching shield project historical case type selection interval with the new shield project after being matched with the label system based on an input shield machine type selection parameter set of the new shield project.
The output module is used for outputting and displaying the model selection result of the shield machine of the new shield project.
In an embodiment of the invention, the shield machine model selection system further comprises a shield machine model selection evaluation module, wherein the shield machine model selection evaluation module is used for evaluating each model selection result in the shield engineering historical case model selection interval; and the method is also used for evaluating the model selection result of the shield machine of the new shield project based on the model selection result of the shield machine of the new shield project and the actual use model and parameters of the shield machine after the new shield project is finished.
Compared with the prior art, the invention has the beneficial effects that:
1. the shield machine model selection method provided by the invention refers to a plurality of completed shield project history cases based on history big data, screens out the model selection interval of the shield project history cases matched with the new shield project by analyzing the shield project history cases and the new shield project, and combines the results of the new shield project and the model selection interval of the shield machine parameters to obtain a more accurate model selection result of the shield machine.
2. The shield engineering historical cases in the historical case database module of the shield machine model selection system can be continuously updated, and the model selection result of the shield machine can be improved along with the continuous supplement of the shield engineering historical cases.
3. The application of the model selection system of the shield machine is flexible, and a user can flexibly select the parameter input in the model selection parameter set of the shield machine according to the condition of a new shield project and match the parameter input with the shield project historical cases in the historical case database module.
4. The arrangement of the feedback module in the shield machine model selection system can compare the actual operation parameters of the shield machine in the shield project with the model selection result of the shield machine of the new shield project selected according to the shield machine model selection system after the new shield project is completed so as to judge whether the model selection of the shield machine of the new shield project is reasonable.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below. It should be apparent that the drawings in the following description are only for illustrating the embodiments of the present invention or technical solutions in the prior art more clearly, and that other drawings can be obtained by those skilled in the art without any inventive work.
Fig. 1 is a flowchart of a shield tunneling machine model selection method based on historical cases.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
Example 1:
in this embodiment, as shown in fig. 1, the method for selecting a shield machine includes the following steps:
and S1, constructing a shield project historical case library and generating a shield machine model selection knowledge base.
The shield machine model selection knowledge base is used for storing information of shield projects which are finished at present and providing matching targets for the model selection of the shield machine of a new shield project. Specifically, the method for generating the model selection knowledge base of the shield machine comprises the following steps:
s101, classifying the shield project according to the type of the shield project and establishing a shield project case library.
At present, the completed shield projects have cases of success, and also have cases of machine accidents, safety accidents and the like in the construction process, so the risks possibly appearing in the construction process of a new shield project can be effectively avoided by classifying the shield projects and combining different types of the shield projects.
The established shield engineering case base comprises a selective case database, a risk source database, a safety accident case base, an emergency plan base, a special project case base and other sub case bases.
Wherein, the shield construction historical case of the successful case is stored in the model selection case database. The risk source database is used for correlating emergency plans and safety accident analysis and storing information such as adaptability evaluation, shield starting, crossing risk sources and the like; the safety accident case library is used for storing safety accident data, including information such as safety accident types, accident addresses and safety risk sources; the emergency plan library is used for collecting emergency plan information, such as comprehensive emergency plan information, for example, a comprehensive emergency plan of No. 8 line civil engineering construction 09 standard for track traffic in Suzhou city, a comprehensive emergency plan of safety accident production 14 standard for No. 16 line of Beijing municipal group subway, and the like; the special project library stores case projects of shield projects in different regions, including information such as a shield interval overall construction scheme, a pile foundation safety civilized construction scheme and the like.
S102, establishing a shield machine case library according to the type of the shield machine, wherein the shield machine case library comprises shield machine models and a parameter sub-database.
Specifically, the shield machine model and parameter database is used for storing the shield machine model and parameters, and the shield machine model comprises: the shield machine is characterized by comprising an earth pressure balance shield and a slurry shield which are distinguished in a pressure balance mode, or a shield machine which is distinguished by manufacturers and is made of pinus sylvestris, kawasaki, Mitsubishi and other brands; or a single-circle shield, a double-circle shield, a three-circle shield, a five-circle shield, a butt shield, a primary-secondary shield, a rectangular shield and the like which are distinguished according to the shield machine types; the parameter data of the shield machine comprises information of a primary shield host, a back matching, a cutter head and the like according to the importance degree; and information such as secondary model, operation standard parameter range, use description, emergency fault treatment, production manufacturer and the like.
Preferably, the shield machine case library further comprises a shield machine key parameter fault sub-database, and common shield machine fault solutions in shield engineering are stored in the shield machine key parameter fault sub-database, wherein the common faults include belt machine faults, double-rail beam and trunking blocking, oil pump coupler damage and the like, and the solutions thereof.
S103, analyzing the shield projects of various types, forming project general information, establishing label information corresponding to the project general information, and establishing a label system.
The step is used for analyzing the shield project in the step S102 and establishing a label system, so that when the new shield project is matched, the new shield project can be matched with the shield project case base according to the selection parameter set of the new shield project. Specifically, the engineering overview information includes regional information, geomorphic information, geological information, hydrological information, geological survey information, environmental information, and the like of the shield engineering.
And S104, collecting a plurality of shield engineering historical cases, classifying the shield engineering historical cases and storing the classified shield engineering historical cases into a corresponding shield engineering case library.
The step is used for collecting the completed shield engineering historical cases, and storing the shield engineering historical cases into corresponding shield engineering case libraries after classifying the shield engineering historical cases.
And S105, analyzing the historical shield project cases to form project general information of the historical shield project, and inputting the project general information of the historical shield project into corresponding label information for storage.
Analyzing the shield engineering historical cases stored in different shield engineering case libraries after classification, extracting the contents of the information of the shield engineering historical cases such as the area, the landform, the geology, the hydrology, the geological survey, the environment and the like, inputting the contents into corresponding label information for storage, and inputting the model of the shield machine of the shield engineering historical cases, the cutter head opening ratio, the maximum thrust, the torque and other parameter information.
And establishing a shield machine model selection knowledge base by collecting a plurality of completed shield engineering historical cases.
In a preferred embodiment of establishing the shield machine model selection knowledge base, as the shield engineering comprises a plurality of types of information, the weight of each information for the shield machine model selection is different, in order to better realize the matching of the new shield engineering and each shield engineering historical case in the shield engineering historical case base and improve the matching result. In the analyzing the shield projects of each type in the step S103, forming the project overview information, and establishing the label information corresponding to the project overview information, the method further includes: and classifying the general information of each project based on a shield machine model selection principle to form general project general information, important project general information and key project general information, wherein a label system comprises a general label, an important label and a key label. For example, the regional information and the engineering type (crossing a river, crossing a sea, crossing a road/railway, etc.) are general engineering general information, and the corresponding labels thereof are general labels; the information such as permeability coefficient, underground water pressure, stratum type, liquidity index, turning radius, maximum gradient and the like belongs to important engineering general information and key engineering general information, and the corresponding labels are important labels and key labels.
And S2, analyzing the new shield project, generating a plurality of pieces of new shield project general information, and forming a model selection parameter set for model selection of the shield machine by the plurality of pieces of new shield project general information.
The step is to analyze the new shield project, extract information such as regions, landforms, geology, hydrology, geological prospecting, environment and the like, and form a model selection parameter set.
And S3, inputting the type selection parameters in the type selection parameter set, matching the type selection parameters with the shield engineering historical cases in the shield engineering historical case library, and outputting the type selection intervals of the shield engineering historical cases. Specifically, the model selection parameters are input into the model selection system of the shield machine, and are matched with the shield engineering historical cases in the model selection knowledge base of the shield machine established in step S1.
The shield engineering comprises a plurality of types of information, and the weight of each information to the type selection of the shield machine is different, so that the matching efficiency and the matching precision of the new shield engineering and each shield engineering historical case in the shield engineering historical case library are improved. Before inputting the type selection parameters in the type selection parameter set, the method also comprises the step of dividing the type selection parameters into common type selection parameters, important type selection parameters and key type selection parameters according to the type selection principle of the shield machine. For example, the regional information and the engineering type (crossing a river, crossing a sea, crossing a road/railway, etc.) are general engineering general information, and the corresponding labels thereof are general labels; the information such as permeability coefficient, underground water pressure, stratum type, liquidity index, turning radius, maximum gradient and the like belongs to important engineering general information and key engineering general information, and the corresponding labels are important labels and key labels.
When the shield machine model selection system is adopted to select the model of the shield machine of the new shield project, important model selection parameters and key model selection parameters in the model selection parameter set can be extracted, or the key model selection parameters are input into the shield machine model selection system to be matched with the shield project historical cases in the shield project historical case library. For example, the permeability coefficient and the underground water pressure can be input for matching, the liquidity index, the turning radius and the maximum gradient can be input for matching, and other model selection parameters can be selected for matching according to the situation of the new shield project.
Preferably, in the matching process of the shield machine model selection system, the shield machine model selection system further outputs the shield engineering historical case model selection interval after removing obviously inconsistent discrete values through an algorithm.
And S4, based on the shield project historical case model selection interval and the shield machine model selection principle, obtaining the shield machine model selection result of the new shield project.
The shield construction history case model selection interval input in step S4 includes a plurality of shield construction history cases matching with the new shield construction, and further screening is required to obtain a final shield machine model selection result of the new shield construction. Specifically, the shield machine model selection principle is a principle that an engineering expert analyzes information such as shield machine models and shield engineering general information, and performs shield machine model selection through a common model selection parameter, an important model selection parameter and a key model selection parameter, and is as follows:
the method comprises the following steps of selecting the type of the shield machine by adopting important type selection parameters and key type selection parameters or key type selection parameters, wherein the type selection rule is as follows:
preferably, the type selection of the shield machine is respectively carried out on each project section in the geological survey report of the new shield project, and the type selection basis is as follows: permeability coefficient: when the average value of the permeability coefficient is less than 10 e-7 m/s, selecting an earth pressure balance shield machine; when the average permeability coefficient is more than 10 e-4 m/s, selecting a slurry balance shield machine; when the permeability coefficient value is in other ranges, temporarily not judging; the stratum type: when the stratum type belongs to clay, silt and fine silt, selecting a soil pressure balance shield machine; when the stratum types belong to a pebble layer, a coarse gravel layer and a medium-fine gravel layer, selecting a slurry balance shield machine; when the stratum type belongs to other conditions, temporarily not judging; underground water pressure: selecting a slurry balance shield machine when the average underground water pressure is more than 3 bar; when the underground water pressure value is in other ranges, temporarily not judging; and when the three conditions of permeability coefficient, stratum type and underground water pressure are different in type selection and conflict occurs, prompting a user to judge again.
If a risk source such as river, lake and sea crossing exists in the new shield engineering and the diameter of the cutter head is larger than 10m, the slurry balance shield machine is selected.
Summarizing the model selection results of the shield machine, and if the model selection results are consistent, directly giving the model selection results; if the type selection results conflict, prompting the user to adjust the priority by self, and taking the highest priority as the standard; if the model selection result of the shield machine is not obtained, the earth pressure balance shield machine is preferably selected based on cost (economy).
Secondly, selecting the parameters of the shield machine according to the important model selection parameters and the key model selection parameters or the key model selection parameters, wherein the model selection rule is as follows:
judging the diameter of the cutter head: and mapping by using a comparison table of the segment outer diameter and the cutter head diameter of the design file, wherein the segment outer diameter and the cutter head diameter are null if the matching is not successful. Judging the hinge mode: judging according to the turning radius of the flat curve of the design file, and if the turning radius is less than or equal to 250m, recommending active hinging; otherwise, leaving the blank and not processing. Tool configuration: judging according to the average value of the uniaxial compressive strength of the sections, and if the uniaxial compressive strength of the sections is less than or equal to 30MPa, configuring a soft soil cutter; if the pressure is more than 30MPa, a hard rock cutter is configured.
Further, the common model selection parameters are adopted to select the model of the shield machine of the new project, and the model selection rule is as follows:
1) matching the stratum types:
a) matching historical cases by formation type, as when current segments include clay, silt, silty sand formations: complete stratum matching is preferentially carried out, historical cases which are clay, silt and fine sand stratums are matched, and if the historical cases are matched, the historical cases are compared with the cutter head form, the cutter configuration, the cutter head opening rate and the cutter head maximum rotating speed of the historical case or a plurality of historical cases; b) if a) is not matched, carrying out decomposition matching, such as searching cases of clay and a silt stratum and cases of a fine sand stratum, and extracting the interval range of the clay and the silt stratum; c) if the above are not matched, the following judgment is made: the cutter head form is judged based on the stratum: the clay-medium fine sand gravel layer adopts a spoke type cutter head; selecting a panel type cutter head for the coarse gravel layer-full-section hard rock; the selected composite cutter head of the former two layers or the composite stratum exists. The cutter head opening rate is judged based on the cutter head form: 70% -75% of spoke type cutter head; 30% -45% of a composite cutter head; the panel type cutter head is less than 30 percent.
2) Matching rated torque, escaping torque and maximum working pressure:
and matching cases belonging to the same type of shield machine and with the diameter of a cutter head of +/-0.5 m from the historical cases, and extracting the interval ranges of the rated torque, the escaping torque and the maximum working pressure.
3) Matching parameters of a shield machine host:
a) and (5) matching the historical cases with the same cutterhead diameter with the anterior shield diameter, and extracting the anterior shield diameter.
b) The maximum tunneling speed/the maximum thrust/the diameter of a main bearing/the weight of a main engine/the length of the main engine/the driving power of a cutter head/the total power/other configurations are matched with the cases of the type of the shield machine, the diameter of the cutter head +/-0.5 m and the same main driving form selected at present, and the range of the interval is extracted.
c) Foaming is only carried out on the earth pressure balance shield machine, and if the slurry shield machine is empty; the earth pressure shield machine is matched with a shield machine type, a cutter head diameter is +/-0.5 m, and the current selected cases with the same main driving form are used for extracting the range of the interval.
In a preferred embodiment of the above-mentioned method for selecting a type of the shield machine, as shown in fig. 1, the method for selecting a type of the shield machine further includes S5, and the method for selecting a type of the shield machine further includes a step of updating a historical case library of the shield construction, that is, after the new shield construction is completed, a shield machine selection result of the new shield construction and an actual use model and parameters of the shield machine are input and stored.
The shield machine model selection method provided by the invention refers to a plurality of completed shield project history cases based on history big data, screens out the model selection interval of the shield project history cases matched with the new shield project by analyzing the shield project history cases and the new shield project, and combines the results of the new shield project and the model selection interval of the shield machine parameters to obtain a more accurate model selection result of the shield machine.
Example 2:
the embodiment discloses a shield machine model selection system based on historical cases, which comprises a historical database module, an input module, a matching analysis module and an output module.
The historical database module comprises a shield tunneling machine database module, a historical case database module and a database updating module. A plurality of shield engineering historical cases are stored in the historical case database module, and a label system of the shield engineering historical cases is stored in a document format; the shield machine database module stores shield machine types and parameters in a document format; and the database updating module is connected with the shield machine database module and the historical case database module and is used for updating the historical cases of the shield engineering and the types and parameters of the shield machine in real time.
Preferably, the historical database module is also provided with a law and regulation system library submodule for storing the rules and regulations such as 'urban rail transit engineering safety quality management temporary solution' notice, GBT 51310-. The device further comprises sub-modules such as an equipment information base and a project information base, and the sub-modules are used for enriching and perfecting the model selection knowledge base of the shield machine.
The input module is used for inputting the type selection parameters of the new shield project into the matching analysis module.
The matching analysis module is used for outputting a matching shield project historical case type selection interval with the new shield project after being matched with the label system based on an input shield machine type selection parameter set of the new shield project.
The output module is used for outputting and displaying the model selection result of the shield machine of the new shield project.
In an embodiment of the invention, the shield machine model selection system further comprises a shield machine model selection evaluation module, wherein the shield machine model selection evaluation module is used for evaluating each model selection result in the shield engineering historical case model selection interval; and the method is also used for evaluating the model selection result of the shield machine of the new shield project based on the model selection result of the shield machine of the new shield project and the actual use model and parameters of the shield machine after the new shield project is finished.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A shield tunneling machine model selection method based on historical cases is characterized by comprising the following steps:
constructing a shield project historical case library and generating a shield machine model selection knowledge base;
analyzing the new shield project to generate a plurality of pieces of new shield project general information, and forming a model selection parameter set for model selection of the shield machine by the plurality of pieces of new shield project general information;
inputting the type selection parameters in the type selection parameter set, matching the type selection parameters with the shield engineering historical cases in the shield engineering historical case library, and outputting a shield engineering historical case type selection interval;
and based on the shield construction project historical case model selection interval and the shield construction machine model selection principle, obtaining the shield construction machine model selection result of the new shield construction project.
2. The model selection method of the shield machine according to claim 1, wherein the generation method of the model selection knowledge base of the shield machine comprises the following steps:
classifying the shield project according to the type of the shield project to establish a shield project case library;
establishing a shield machine case library according to the type of a shield machine, wherein the shield machine case library comprises a shield machine model and a parameter sub-database;
analyzing various types of shield projects, forming project general information, establishing label information corresponding to the project general information, and establishing a label system;
collecting a plurality of shield engineering historical cases, classifying the shield engineering historical cases and storing the classified shield engineering historical cases into corresponding shield engineering case libraries;
analyzing the historical shield project cases to form project general information of the historical shield project, and inputting the project general information of the historical shield project into corresponding label information for storage.
3. The shield tunneling machine model selection method according to claim 2, wherein the project profile information includes regional information, geomorphic information, geological information, hydrological information, geological survey information, and environmental information of the shield project.
4. The type selection method of the shield machine according to claim 3, wherein each type of shield engineering is analyzed, engineering profile information is formed, and label information corresponding to the engineering profile information is established, and the method further comprises the following steps:
and classifying the general information of each project based on a shield machine model selection principle to form general project general information, important project general information and key project general information, wherein a label system comprises a general label, an important label and a key label.
5. The shield tunneling machine model selection method according to any one of claims 2-4, wherein the shield engineering case base comprises a model selection case database, a risk source database and a safety accident case base.
6. The shield tunneling machine type selection method according to any one of claims 2-4, wherein the shield tunneling machine case database further comprises a shield tunneling machine key parameter fault sub-database.
7. The shield tunneling machine model selection method according to claim 1, characterized by, before inputting the model selection parameters in the model selection parameter set, further comprising dividing the model selection parameters into general model selection parameters, important model selection parameters, and key model selection parameters according to the model selection principle of the shield tunneling machine;
when the type selection parameters in the type selection parameter set are input, extracting important type selection parameters and key type selection parameters in the type selection parameter set, or extracting the key type selection parameters to be matched with the shield project historical cases in the shield project historical case library.
8. The shield machine model selection method according to claim 1, characterized in that the shield machine model selection method further comprises a step of updating a shield project historical case library, namely inputting and storing the shield machine model selection result of the new shield project and the actual use model and parameters of the shield machine after the new shield project is completed.
9. A shield machine model selection system based on historical cases is characterized by comprising a historical database module, an input module, a matching analysis module and an output module;
the historical database module comprises a shield tunneling machine database module, a historical case database module and a database updating module, wherein a plurality of shield engineering historical cases are stored in the historical case database module, and a label system of the shield engineering historical cases is stored in a document format; the shield machine database module stores shield machine types and parameters in a document format; the database updating module is connected with the shield machine database module and the historical case database module and is used for updating the historical cases of the shield engineering and the types and parameters of the shield machine in real time;
the input module is used for inputting the model selection parameters of the new shield project into the matching analysis module;
the matching analysis module is used for outputting a matched shield construction historical case type selection interval of the new shield construction after being matched with a label system based on an input shield construction machine type selection parameter set of the new shield construction;
and the output module is used for outputting and displaying the model selection result of the shield machine of the new shield project.
10. The shield machine type selection system according to claim 9, further comprising a shield machine type selection evaluation module for evaluating each type selection result in the shield project historical case type selection interval;
and the model selection evaluation module of the shield machine is also used for evaluating the model selection result of the shield machine of the new shield project based on the model selection result of the shield machine of the new shield project and the actual use model and parameters of the shield machine after the new shield project is finished.
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