Semi-intelligent design method and device for shield tunnel

Abstract

The present disclosure relates to a semi-intelligent design method and device of a shield tunnel, and relates to the technical field of shield tunnels. The method comprises: obtaining a three-dimensional terrain model, a three-dimensional geological model, a three-dimensional line model and mileage information of the shield tunnel; segmenting the shield tunnel according to the mileage information to obtain a plurality of mileage segments; for each mileage segment, determining the buried depth of each point in the mileage segment according to the three-dimensional terrain model and the three-dimensional line model; determining the segment type of each point according to the buried depth of each point and a preset corresponding relationship between the buried depth and the segment type; adjusting the segment type according to the three-dimensional geological model and the three-dimensional line model; and generating a design result according to the adjusted segment type and outputting the design result. The present disclosure can utilize three-dimensional models to perform forward design of shield tunnels, thereby improving the accuracy of shield tunnel design and reducing the workload of technical personnel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shield tunnel, and in particular to a semi-intelligent design method and device for shield tunnel. BACKGROUND

[0002] Shield tunnel design needs to be determined comprehensively in combination with factors such as topography, geology, and surrounding environmental conditions. The general two-dimensional design process currently includes: structure simplification, load calculation, structure calculation, and tunnel design. In this process, the designer needs to perform a large amount of calculation to obtain two-dimensional drawings. After the application of three-dimensional BIM technology, a large amount of geometric and non-geometric information is carried in the three-dimensional model. However, the design habit based on the three-dimensional BIM model is different from the two-dimensional design process, and there is great inconvenience in operation. How to enable the designer to fully utilize the information and data to reduce the workload of the designer and improve the accuracy of the design result is a problem to be solved. SUMMARY

[0003] Embodiments of the present disclosure provide a semi-intelligent design method and device for shield tunnel.

[0004] In a first aspect, embodiments of the present disclosure provide a semi-intelligent design method for shield tunnel, comprising: acquiring a three-dimensional topographic model, a three-dimensional geological model, a three-dimensional line model, and mileage information of the shield tunnel; segmenting the shield tunnel according to the mileage information to obtain a plurality of mileage paragraphs; for each mileage paragraph, determining the buried depth of each point in the mileage paragraph according to the three-dimensional topographic model and the three-dimensional line model; determining the segment type of each point according to the buried depth of each point and a preset corresponding relationship between buried depth and segment type; adjusting the segment type according to the three-dimensional geological model and the three-dimensional line model; and generating a design result according to the adjusted segment type and outputting the design result.

[0005] In a second aspect, embodiments of the present disclosure provide a semi-intelligent design device for shield tunnel, comprising: an information acquisition unit configured to acquire a three-dimensional topographic model, a three-dimensional geological model, a three-dimensional line model, and mileage information of the shield tunnel; a mileage segmentation unit configured to segment the shield tunnel according to the mileage information to obtain a plurality of mileage paragraphs; a buried depth determination unit configured to, for each mileage paragraph, determine the buried depth of each point in the mileage paragraph according to the three-dimensional topographic model and the three-dimensional line model; a type determination unit configured to determine the segment type of each point according to the buried depth of each point and a preset corresponding relationship between buried depth and segment type; a type adjustment unit configured to adjust the segment type according to the three-dimensional geological model and the three-dimensional line model; and a result output unit configured to generate a design result according to the adjusted segment type and output the design result.

[0006] By using the technical solution of the present disclosure, the shield tunnel can be semi-intelligently designed in a forward direction by using a three-dimensional model, so that the information of the three-dimensional model can be fully utilized in the design process of the shield tunnel, thereby improving the accuracy of the shield tunnel design and reducing the workload of the technical personnel.

[0007] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0008] The accompanying drawings are used to better understand the present solution and do not constitute a limitation on the present disclosure. Among them:

[0009] Figure 1 Flowchart of an embodiment of the semi-intelligent design method of the shield tunnel of the present disclosure;

[0010] Figure 2 Flowchart of another embodiment of the semi-intelligent design method of the shield tunnel of the present disclosure;

[0011] Figure 3 Flowchart of another embodiment of the semi-intelligent design method of the shield tunnel of the present disclosure;

[0012] Figure 4 Flowchart of determining the segment type of the semi-intelligent design method of the shield tunnel of the present disclosure;

[0013] Figure 5 Structural diagram of an embodiment of the semi-intelligent design device of the shield tunnel of the present disclosure. DETAILED DESCRIPTION

[0014] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present disclosure. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs.

[0015] It should be noted that the terms used herein are only for the purpose of describing the specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0016] The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0017] In order to make the technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the drawings and specific embodiments.

[0018] Figure 1 The flow 100 of one embodiment of the semi-intelligent design method of the shield tunnel of the present disclosure is shown. As shown, the semi-intelligent design method of the shield tunnel of the present embodiment can include the following steps: Figure 1

[0019] Step 101, obtaining a three-dimensional terrain model, a three-dimensional geological model, a three-dimensional route model and mileage information of the shield tunnel.

[0020] In the present embodiment, the three-dimensional terrain model, the three-dimensional geological model, the three-dimensional route model and the mileage information of the shield tunnel can be obtained first. The three-dimensional terrain model here can include the terrain information of the area where the shield tunnel is located, and the terrain information can include the elevation information of the ground. The three-dimensional geological model can include the geological information of the area where the shield tunnel is located, and the geological information can include the geological type information. The three-dimensional route model can include the route information of the shield tunnel. The mileage information can include the starting point, the ending point and the mileage information of various special structures in the shield tunnel.

[0021] It should be noted that the three-dimensional terrain model, the three-dimensional geological model and the three-dimensional route model described above can be obtained by technical personnel according to information collection in the area where the shield tunnel is located, and three-dimensional modeling according to the collected information.

[0022] Step 102, segmenting the shield tunnel according to the mileage information to obtain a plurality of mileage paragraphs.

[0023] After obtaining the mileage information, the shield tunnel can be segmented. Specifically, the shield tunnel can be segmented according to a preset length. Alternatively, the shield tunnel can be segmented according to the types of different structures in the shield tunnel. After segmentation, a plurality of mileage paragraphs can be obtained.

[0024] Step 103, for each mileage paragraph, determining the burial depth of each point in the mileage paragraph according to the three-dimensional terrain model and the three-dimensional route model.

[0025] After segmentation, each mileage paragraph can be analyzed respectively. Specifically, for each point in a single mileage paragraph, the burial depth of each point in the mileage paragraph can be determined according to the terrain information and the route information. The burial depth refers to the vertical distance from the top of the tunnel excavation section to the natural ground surface. Specifically, the burial depth of each point can be determined according to the ground elevation in the terrain information and the tunnel elevation in the three-dimensional route model.

[0026] ​At step 104, according to the depth of each point and the preset correspondence between the depth and the segment type, the segment type of each point is determined.

[0027] In this embodiment, the technician can preset the correspondence between the depth and the segment type. The shield segment is the main assembly component of the shield construction, is the innermost barrier of the tunnel, and bears the role of resisting the earth pressure, underground water pressure and some special loads. The shield segment is the permanent lining structure of the shield tunnel, and the quality of the shield segment is directly related to the overall quality and safety of the tunnel and affects the waterproof performance and durability of the tunnel. The support performance of different types of segments is different. The correspondence here can be set by the technician according to experience, or can be obtained by a large amount of learning of the shield tunnel.

[0028] According to the above preset correspondence between the depth and the segment type, the segment type corresponding to each point can be determined.

[0029] At step 105, the segment type is adjusted according to the three-dimensional geological model and the three-dimensional line model.

[0030] After the segment type corresponding to each point is determined by using the depth, the segment type of each point can be further adjusted in combination with the three-dimensional geological model and the three-dimensional line model. For example, if the geological type of a certain point requires a higher level segment, the level of the above segment type can be increased. Or, if a certain special structure of the shield tunnel in the three-dimensional line model requires a higher level segment, the level of the above segment type can be increased. The above special structure can include a risk source paragraph, an auxiliary chamber paragraph, a starting point paragraph or an end point paragraph.

[0031] At step 106, a design result is generated and output according to the adjusted segment type.

[0032] After the adjustment, the segment type of each point of the shield tunnel can be determined, and then a design result can be generated and output according to the segment type of each point. Here, the segment type of each point can be counted to determine the number, length, etc. of different segment types required, which are taken as the design result. Or, according to the increased segment type, a two-dimensional drawing can be generated, and the two-dimensional drawing is taken as the design result.

[0033] The semi-intelligent design method of the shield tunnel provided by the above embodiment of the present disclosure can utilize the three-dimensional model to perform semi-intelligent forward design of the shield tunnel, so as to improve the accuracy of the shield tunnel design and reduce the workload of the technician.

[0034] Continuing to refer to Figure 2 which shows a flowchart 200 of another embodiment of the semi-intelligent design method of the shield tunnel according to the present disclosure. As shown inFigure 2 As shown, the method in this embodiment can include the following steps:

[0035] In step 201, a three-dimensional terrain model, a three-dimensional geological model, a three-dimensional line model and mileage information of the shield tunnel are acquired.

[0036] In this embodiment, the three-dimensional terrain model, the three-dimensional geological model and the three-dimensional line model of the shield tunnel can be acquired from a preset device for storing the above-mentioned three-dimensional models. The mileage information can also be acquired, which can include the mileage of the connecting channel, the mileage of the auxiliary chamber, the mileage of the risk source, the mileage of the starting reinforcement section and the mileage of the receiving reinforcement section.

[0037] In some specific implementations, after acquiring the above-mentioned three-dimensional models, the corresponding information can be parsed from the above-mentioned three-dimensional models. For example, the ground elevation information is parsed from the three-dimensional terrain model. The geological type of each point in the shield tunnel is parsed from the three-dimensional geological model. The starting section of the shield tunnel and the connecting channel are parsed from the three-dimensional line model. After acquiring the above-mentioned mileage information, the above-mentioned mileage information can be stored.

[0038] In some optional implementations of this embodiment, after acquiring the above-mentioned three-dimensional models, the influencing factors in the design process of the shield tunnel and the pipe segment model selection principles set according to these influencing factors can also be acquired. The influencing factors can include the tunnel depth, the geological conditions, whether to set the auxiliary structure, whether there is a risk source, etc. The selection principles can include the depth control principle, the stratum control principle, the connecting channel control principle, the auxiliary chamber control principle, the risk source control principle, the starting and receiving section control principle, etc.

[0039] The tunnel depth directly affects the stratum load applied on the shield pipe segment, so in this embodiment, the depth of each point is taken as the primary factor affecting the selection of the shield tunnel pipe segment. The depth control principle refers to controlling the pipe segment model according to the depth of each point. Specifically, the tunnel depth control standard is determined according to the shield outer diameter, and the pipe segment model in different depth ranges is determined.

[0040] The geological conditions are also one of the important factors affecting the selection of the shield pipe segment. Rock stratum, soil stratum, special stratum and adverse geology all require different pipe segment structures, and special targeted design is often required for some special geological conditions. The stratum control principle refers to controlling the pipe segment model according to the geological conditions of each point. Specifically, the geological model information is acquired through the geological interface, and the determination method of the pipe segment model corresponding to each type of special stratum is set.

[0041] Since the subway shield tunnel is usually provided with a connecting passage between left and right holes, a high-speed rail shield tunnel is usually provided with an auxiliary chamber, etc., a shield segment needs to be opened at these positions, and therefore the segment structure within a certain range before and after the auxiliary chamber needs to be strengthened. The connecting passage control principle and the auxiliary chamber control principle refer to controlling the segment type of a point located in the connecting passage and the auxiliary chamber. Specifically, the length of the strengthening section before and after the connecting passage is determined, the determination principle of the segment type of the connecting passage section is set, and the determination principle can be one level of strengthening or a specified level. The length of the strengthening section before and after the auxiliary chamber is determined, and the determination principle of the segment type of the auxiliary chamber strengthening section is set, and the determination principle can be one level of strengthening or a specified level.

[0042] When a shield tunnel is laid in an urban area, it may be adjacent to or pass through existing buildings and structures, which are risk source factors for the tunnel. When the tunnel passes through these risk sources, the structure needs to be strengthened to ensure the safety of the existing buildings and structures and the safety of the tunnel structure itself. The risk source control principle refers to controlling the segment type of a point located in the risk source. Specifically, the influence of the risk source is classified according to the tunnel crossing method and the crossing distance. The crossing method can be divided into underpass, side pass, and overpass types. For different crossing methods and crossing distances, the corresponding segment type determination principle is determined, which can be one level of strengthening or a specified level.

[0043] When a shield tunnel starts and receives a section, it needs to penetrate the side wall of the shield well, which is often risky, and therefore the tunnel starting and receiving section needs to be structurally strengthened. The starting and receiving section control principle refers to controlling the segment type of a point located in the starting and receiving section. Specifically, the length of the starting and receiving strengthening section is determined, and the determination principle of the segment type of the strengthening section is set, and the determination principle can be one level of strengthening or a specified level.

[0044] In step 202, the connecting passage mileage, auxiliary chamber mileage, risk source mileage, and starting and receiving strengthening section mileage are sorted to form a mileage table. According to the mileage table, the shield tunnel is segmented to obtain a plurality of mileage sections.

[0045] In this embodiment, the connecting passage mileage, auxiliary chamber mileage, risk source mileage, and starting and receiving strengthening section mileage in the mileage information can also be sorted to form a mileage table. The mileage table can include information such as number, starting mileage, ending mileage, and length. After obtaining the mileage table, the shield tunnel can be segmented to obtain a plurality of mileage sections. Specifically, it can be first determined whether the length of each number in the mileage table is greater than a preset length. Then, the numbers greater than the preset length are segmented to obtain a plurality of mileage sections. Alternatively, a certain type of section in the mileage table can be divided, etc.

[0046] Step 203, for each mileage paragraph, determining the ground elevation according to the three-dimensional terrain model; determining the line elevation according to the three-dimensional line model; for each mileage paragraph, determining the burial depth of each point according to the ground elevation and the line elevation of each point.

[0047] After the mileage is divided, each mileage paragraph can be processed. Specifically, the ground elevation can be determined according to the three-dimensional terrain model. Then, the line elevation can be determined according to the three-dimensional line model. The burial depth of each point can be determined by calculating the ground elevation and the line elevation of each point.

[0048] Step 204, determining the pipe segment type of each point according to the burial depth of each point and the preset correspondence between the burial depth and the pipe segment type.

[0049] In this embodiment, the technician can preset the correspondence between the burial depth and the pipe segment type, and the correspondence here is the burial depth control principle described above. Similarly, the correspondence between the geological type and the pipe segment type and the correspondence between the reinforcement paragraph and the pipe segment type, i.e., the stratum control principle, the communication passage control principle and the auxiliary cavern control principle, can also be set.

[0050] Step 205, determining the geological type of each point according to the three-dimensional geological model; adjusting the pipe segment type according to the geological type of each point and the preset correspondence between the geological type and the pipe segment type; determining whether each point is located in a reinforcement paragraph according to the three-dimensional line model; for each point, in response to determining that the point is located in a reinforcement paragraph, adjusting the pipe segment type according to the correspondence between the reinforcement paragraph and the pipe segment type.

[0051] After the pipe segment type of each point is determined according to the burial depth, the pipe segment type can be further adjusted in combination with the geological type and the location of the point. Specifically, in the adjustment, the preset correspondence between the geological type and the pipe segment type and the correspondence between the reinforcement paragraph and the pipe segment type can be referred to.

[0052] In some specific practices, in the calculation and analysis of each mileage paragraph, the pipe segment type calculated based on the burial depth factor is taken as the basis, and the factors such as geology, communication passage, auxiliary cavern, risk source, starting and ending point are superimposed and comprehensively calculated and determined. When the burial depth of each point is calculated, the geological information of the point is extracted synchronously, and when the geological type is a case that needs special consideration in the design principle, the pipe segment type is adjusted according to the set design principle.

[0053] After the analysis of the depth and geological factors is completed, the location of the calculation point is determined in combination with the odometer. If the calculation point is located in the influence range of the connecting channel, the pipe segment type is adjusted according to the design principle of the connecting channel factor. If the calculation point is located in the influence range of the auxiliary chamber, the pipe segment type is adjusted according to the design principle of the auxiliary chamber factor. If the calculation point is located in the risk source paragraph, the pipe segment type is adjusted according to the design principle of the risk source crossing. If the calculation point is located in the starting and receiving reinforcement section, the pipe segment type is adjusted according to the design principle of the reinforcement section.

[0054] The above adjustment can be determined according to the aforementioned design principle, that is, it can be adjusted by one level upwards or one level downwards, or the pipe segment type can be specified as any level.

[0055] In some optional implementations of the present embodiment, there can be different corresponding relationships corresponding to different pipe segment types. For example, for a certain point, according to the corresponding relationship between the depth and the pipe segment type, the pipe segment type of the point is A. According to the corresponding relationship between the geological type and the pipe segment type, the pipe segment type of the point is B. According to the corresponding relationship between the reinforcement paragraph and the pipe segment type, the pipe segment type of the point is C. In this case, the highest level pipe segment type in different pipe segment types can be taken as the pipe segment type corresponding to the point.

[0056] Specifically, the risk source paragraph can overlap with the connecting channel, the auxiliary chamber, the starting and receiving reinforcement paragraph, etc. The design scheme to be adopted needs to be calculated and analyzed according to different overlapping situations. Specifically, when there is an overlap, the overlapping paragraph situation is analyzed first. Generally, the risk source paragraph will only overlap with one of the connecting channel, the auxiliary chamber, and the starting and receiving position. When there is an overlap, it is analyzed whether it is a containing relationship or a penetrating relationship through the size of the mileage. The overlapping part in the containing relationship and the penetrating relationship is the part that needs special treatment. In the part that needs special treatment, the higher level pipe segment type in the two is selected as the pipe segment type of the overlapping part, or the pipe segment type of the overlapping part is selected according to the selection principle preset by the designer.

[0057] In some optional implementations of the present embodiment, in the process of determining the pipe segment type corresponding to each point according to the design factors, the continuous length of the unified pipe segment type also needs to be considered. If the above continuous length is short, in order to avoid the tunnel design being too fragmented and causing inconvenience to construction, the pipe segment type of each point can be further adjusted to provide convenience for construction. In some specific practices, after the pipe segment type of each point is determined according to the depth, the situation that the calculated segment length is short (such as less than 10m) can be considered. In order to avoid the tunnel design being too fragmented and causing inconvenience to construction, the segment with short length is merged with the front and rear segments, so that the pipe segment type of the front and rear paragraphs is consistent. It can be understood that the above adjustment can occur throughout the determination of the pipe segment type.

[0058] Step 206, generating a design result according to the adjusted segment type and outputting the design result.

[0059] After the analysis of each design factor is completed, the design result is determined according to the boundary mile of different segment types. The design result can include a model, drawings and various lists. The model can include a three-dimensional model of the shield tunnel. The drawings can include two-dimensional drawings. The lists can include a mileage table, a design segment parameter table and an engineering quantity table.

[0060] In some optional implementations of the embodiment, the adjusted segment type can be output as an intermediate result. The intermediate result can be reviewed by a technician. The intermediate result can be modified by the technician. If modification information for the intermediate result is received, the design result can be generated and output according to the modification information and the intermediate result.

[0061] Specifically, the technician can analyze whether the intermediate result is consistent with the actual environment and meets the design expectations. For parts that cannot accurately express the design ideas of the designer, manual adjustment is needed to optimize. According to this idea, the design result is output as a two-dimensional longitudinal preview of the shield tunnel. The designer can adjust the start and end point mile, length and segment type of each design segment in the preview. After the adjustment is completed, the design result is refreshed. The design information in the preview is stored in a design information table.

[0062] In some optional implementations of the embodiment, the design segment parameter information can be determined according to the segment type corresponding to each point. The shield tunnel preview can be generated according to the design segment parameter information. The design segment parameter information and the shield tunnel preview can be output.

[0063] After the analysis of each design factor is completed, the design parameter segment table is determined according to the boundary mile of different segment types. Each design segment includes start and end point mile, segment type, paragraph length and other design information. The design information is output to generate a design result. The design result can include a two-dimensional longitudinal preview of the shield tunnel. The design result can also include the start point, end point and segment type of each design segment.

[0064] Step 207, determining a three-dimensional model of the shield tunnel according to the design result and the three-dimensional line model. Generating design drawings of the shield tunnel according to the three-dimensional model and the line model. According to the three-dimensional model, the required engineering quantity is counted to generate an engineering quantity table.

[0065] With the generated design information and the line model, the created segment unit is automatically created into a whole shield tunnel model, and the attribute of each segment model is assigned according to the design information table. Further, with the created shield tunnel model and the line model, the automatic creation and generation of design drawings are performed. Further, with the created shield tunnel model, the automatic extraction of the engineering quantity of segment concrete, steel bars, waterproof materials and the like is performed, and an engineering quantity statistics table is created.

[0066] The three-dimensional forward design process of the present disclosure can also refer to Figure 3 In the Figure 3 , first, a basic model can be loaded. Here, the basic model can include a terrain model, a geological model and a line model. Then, the tunnel design information can be input by the technician. Here, the design information can include mileage information. Then, the tunnel design principles can be input by the technician. Here, the tunnel design principles can include the depth control principle, the stratum control principle, the connecting passage control principle, the auxiliary chamber control principle, the risk source control principle and the start-receiving segment control principle. Further, the tunnel design factors, including the connecting passage mileage, the auxiliary chamber mileage and the risk source mileage, can be input by the technician. Then, the tunnel design factor analysis and the shield tunnel design can be performed according to the semi-intelligent design method of the shield tunnel of the present disclosure, and the tunnel design information table and the tunnel longitudinal section scheme drawing are exported. The specific analysis process can be referred to in Figure 4 , that is, first, the segment type is determined according to the depth, and then the segment type is adjusted according to the position of the point. The technician can view the above-mentioned tunnel design information table and tunnel longitudinal section scheme drawing, and can optimize them. The present disclosure can refresh the tunnel design information table and the tunnel longitudinal section scheme drawing according to the optimization result. When optimizing, the design segment mileage, the design segment length and the design segment segment type can be considered. Finally, the design result can be output in the form of three-dimensional model and two-dimensional drawing. The three-dimensional model can include a shield tunnel model. The two-dimensional drawing includes a tunnel plan, a tunnel longitudinal section drawing and a tunnel segment drawing.

[0067] The semi-intelligent design method of the shield tunnel provided by the above-mentioned embodiments of the present disclosure can automatically design the shield tunnel according to the design principles set by the technician in advance, using the three-dimensional geological model, the three-dimensional terrain model and the three-dimensional line model of the shield tunnel, and finally a two-dimensional preview drawing can be obtained, which can be provided to the technician for viewing and modification, thereby realizing the forward design process of obtaining two-dimensional drawings from three-dimensional models. Since the final design result needs to be audited by human beings and the design principles and design factors need to be determined by human beings before the tunnel design, this scheme is called semi-intelligent design. Through this scheme, the workload of the technician is effectively reduced, and the accuracy of the shield tunnel design is improved.

[0068] Further referring to Figure 5 , as an implementation of the method shown in the above figures, the present disclosure provides an embodiment of a semi-intelligent design device for shield tunnels, which corresponds to the method embodiment shown in Figure 1 , and the device can be specifically applied to various electronic devices.

[0069] As shown in Figure 5 , the semi-intelligent design device for shield tunnels 500 of the present embodiment comprises an information acquisition unit 501, a mileage segmentation unit 502, a buried depth determination unit 503, a model determination unit 504, a model adjustment unit 505, and a result output unit 506.

[0070] The information acquisition unit 501 is configured to acquire a three-dimensional terrain model, a three-dimensional geological model, a three-dimensional route model, and mileage information of a shield tunnel.

[0071] The mileage segmentation unit 502 is configured to segment the shield tunnel according to the mileage information to obtain a plurality of mileage segments.

[0072] The buried depth determination unit 503 is configured to determine the buried depth of each point in each mileage segment according to the three-dimensional terrain model and the three-dimensional route model.

[0073] The model determination unit 504 is configured to determine the segment model of each point according to the buried depth of each point and a preset corresponding relationship between buried depth and segment model.

[0074] The model adjustment unit 505 is configured to adjust the segment model according to the three-dimensional geological model and the three-dimensional route model.

[0075] The result output unit 506 is configured to generate and output a design result according to the adjusted segment model.

[0076] In summary, in the technical solution of the present disclosure, a three-dimensional model can be used for forward design of a shield tunnel, thereby improving the accuracy of shield tunnel design and reducing the workload of technical personnel.

[0077] The above only describes the preferred embodiments of the present disclosure and should not be used to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A semi-intelligent design method for shield tunnels, comprising: Obtain the three-dimensional terrain model, three-dimensional geological model, three-dimensional route model, and mileage information of the shield tunnel; Based on the mileage information, the shield tunnel is divided into segments to obtain multiple mileage segments; For each mileage segment, the burial depth of each point within that mileage segment is determined based on the three-dimensional terrain model and the three-dimensional route model. Based on the burial depth of each point and the pre-set correspondence between the burial depth and the segment type, the segment type of each point is determined. The segment type is adjusted based on the three-dimensional geological model and the three-dimensional route model; Based on the adjusted segment type, generate and output the design results; The step of adjusting the segment type based on the three-dimensional geological model and the three-dimensional route model includes: Based on the aforementioned three-dimensional geological model, the geological type of each location is determined; The segment model is adjusted according to the geological type of each location and the preset correspondence between geological type and segment model; Based on the three-dimensional route model, determine whether each point is located in the reinforced section; For each point, in response to determining that the point is located in the reinforced section, the segment model is adjusted according to the correspondence between the reinforced section and the segment model.

2. The method according to claim 1, wherein, The mileage information includes the mileage of the connecting passage, the mileage of the auxiliary chamber, the mileage of the risk source, the mileage of the initial reinforcement section, and the mileage of the receiving reinforcement section; as well as The shield tunnel is segmented based on the mileage information to obtain multiple mileage segments, including: The mileage of the connecting passage, the mileage of the auxiliary cavern, the mileage of the risk source, and the mileage of the initial reinforcement section are sorted to form a mileage table; Based on the mileage chart, the shield tunnel is divided into segments to obtain multiple mileage sections.

3. The method according to claim 1, wherein, For each mileage segment, the burial depth of each point within that mileage segment is determined based on the three-dimensional terrain model and the three-dimensional route model, including: Determine the ground elevation based on the three-dimensional terrain model; Based on the aforementioned three-dimensional route model, determine the route elevation; For each mileage segment, the burial depth of each point is determined based on the ground elevation and the line elevation.

4. The method according to claim 1, wherein, The step of adjusting the segment type based on the three-dimensional geological model and the three-dimensional route model includes: For each location, in response to different correspondences corresponding to different segment models, the highest-level segment model among the different segment models is taken as the segment model for that location.

5. The method according to claim 4, wherein, The method further includes: Determine the continuous length of the same segment type based on the segment type corresponding to each location; The segment model is adjusted based on the continuous length and the preset length threshold.

6. The method according to claim 1, wherein, The process of generating and outputting design results based on the adjusted segment type includes: The adjusted segment model will be output as an intermediate result. In response to receiving modification information for the intermediate results, design results are generated and output based on the modification information and the intermediate results.

7. The method according to claim 6, wherein, The process of generating and outputting design results based on the adjusted segment type includes: Based on the segment type corresponding to each location, determine the design segmentation parameter information; Based on the design segmentation parameter information, a preview image of the shield tunnel is generated; Output the design segmentation parameter information and the preview image of the shield tunnel.

8. The method according to any one of claims 1-6, wherein, The method further includes: Based on the design results and the three-dimensional route model, the three-dimensional model of the shield tunnel is determined; Based on the three-dimensional model and the route model, design drawings for the shield tunnel are generated; Based on the three-dimensional model, the required engineering quantities are calculated, and an engineering quantity statistics table is generated.

9. A semi-intelligent design device for shield tunnels, comprising: The information acquisition unit is configured to acquire the three-dimensional terrain model, three-dimensional geological model, three-dimensional route model, and mileage information of the shield tunnel; The mileage segmentation unit is configured to segment the shield tunnel according to the mileage information to obtain multiple mileage segments; The burial depth determination unit is configured to determine the burial depth of each point within each mileage segment based on the three-dimensional terrain model and the three-dimensional route model. The model determination unit is configured to determine the segment model at each point based on the burial depth of each point and the preset correspondence between the burial depth and the segment model. The model adjustment unit is configured to adjust the model of the tunnel segment according to the three-dimensional geological model and the three-dimensional route model; The result output unit is configured to generate and output design results based on the adjusted segment model; The model adjustment unit is further configured to: Based on the aforementioned three-dimensional geological model, the geological type of each location is determined; The segment model is adjusted according to the geological type of each location and the preset correspondence between geological type and segment model; Based on the three-dimensional route model, determine whether each point is located in the reinforced section; For each point, in response to determining that the point is located in the reinforced section, the segment model is adjusted according to the correspondence between the reinforced section and the segment model.

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