Three-dimensional parametric design method for slag field

Abstract

The invention discloses a three-dimensional parametric design method for a slag field, and belongs to the technical field of three-dimensional parametric design of slag fields. The method comprises the following steps: generating a guide line, creating a standard parameter model, generating a slag field standard model by taking the guide line as a reference line, segmenting the slag field standard model by utilizing a terrain curved surface to obtain a slag field entity model, then performing trial calculation until a planning rule is met to obtain a slag field entity, and finally designing a drawing by using a reference point. And the applicability is high. Meanwhile, the method achieves standard process and automation, the slag field design can be obtained through information such as basic reference points, and the slag field design can also be obtained through manual adjustment. The method achieves the effects of design process, standardization and flexibility, and greatly improves the efficiency of designers and the intuition of scheme display compared with a traditional two-dimensional design method using slope line or end line (guide line) offset, cutting and table body calculation.

Description

Technical Field

[0001] The invention belongs to the technical field of three-dimensional parameterized design of slag yards, and specifically relates to a three-dimensional parameterized design method of a slag yard. Background Art

[0002] The process of engineering construction is often accompanied by the generation of waste slag and the mining of construction raw materials. It is necessary to design a slag yard to store waste slag and a material yard to mine construction raw materials. For large-scale projects such as large hydropower station projects, the scale of the slag yard is particularly large, and the design and layout of the slag yard often affects the layout of the entire project.

[0003] However, the site selection of the slag yard is restricted by many factors such as geological conditions, ecological environment, and soil and water conservation, and its land use scope also occupies a large land use index. How to reasonably arrange and optimize the shape under the constraints of many boundary conditions has become a major point in the design of the engineering layout. Although the traditional CAD two-dimensional design has relatively low initial investment and is easy for designers to get started with, it is time-consuming, low in precision, and poor in flexibility. Changes in the position of the starting or ending line of the slag yard almost require redesign, resulting in a large amount of repetitive work, and the two-dimensional plane drawing is not vivid. Designers often need a lot of experience and good spatial imagination, and the overall cost is high. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the design and layout of the existing slag yard are unreasonable and the shape optimization is not convenient. A three-dimensional parametric design method for the slag yard is proposed. By generating guide lines, a standard parameter model is created, and the guide lines are used as reference lines to generate a standard model of the slag yard. The terrain surface is used to segment the standard model of the slag yard to obtain a solid model of the slag yard, and then the volume difference of the solid model of the slag yard is calculated until the planning rules are met to obtain the slag yard entity. Finally, the top view plane contour is derived from the reference point to realize the design and drawing. The method has a complete process, a standard model, and strong applicability. At the same time, the method realizes standard process and automation. The slag yard design can be automatically obtained by inputting the basic reference point, reference length, slag yard selection and level, and can also be manually adjusted to obtain the slag yard design. The present invention achieves the effect of design process, standardization and flexibility. Compared with the traditional method of two-dimensional design using the starting line or the end line (guide line) offset, cutting, and platform calculation, it greatly improves the efficiency of designers and the intuitiveness of scheme display.

[0005] In order to solve the above technical problems, the present invention provides a three-dimensional parametric design method for a slag yard, comprising:

[0006] S1. Set at least two reference points and their reference directions on a certain elevation line of the proposed range topographic map, and use the direction length as a parameter to form a boundary to obtain a guide line;

[0007] S2. Create a reference line, take the normal plane contour of the reference line as the stretching object, and stretch in the extension direction of the reference line to generate a standard parameter model;

[0008] S3, calling the standard parameter model with the guide line as the reference line, generating a standard model of the slag yard and segmenting it using the terrain surface to obtain a solid model of the slag yard;

[0009] S4, calculating the volume difference of the slag yard entity model until the planning rules are met to obtain the slag yard entity;

[0010] S5. Based on the requirements, take the slag yard entity as the object, select the top view angle, scale and reference coordinate points to export the general two-dimensional drawing, and obtain the slag yard plane design drawing.

[0011] Preferably, in S1, generating a guide line comprises the following steps:

[0012] Sa, set at least two points A(X A ,Y A )、B(X B ,Y B );

[0013] Sb, slag field includes slag pile and excavation. Enter the slag pile or excavation. For the excavation, the default is to search on the elevation contour line near the set point. The smallest point a(X a ,Y a ), get the direction vector Similarly, we get the direction vector of point B Set the length L on this direction vector to get points A' and B';

[0014] Sc. Connect A, A', B', and B in sequence with line segments to obtain a guide line.

[0015] Preferably, the slag pile comprises Axisymmetric get by Axisymmetric A' and B' are obtained by setting the lengths based on engineering experience on the direction vector, and A, A', B', and B are connected in sequence with line segments to obtain a guide line.

[0016] Preferably, the default height of each level of the slag pile is 10m, the slope is 1:2, the width of the ordinary horseway is 2m, and the width of a certain level of horseway with a cumulative height ≥50m and its multiples is 5m; the default height of each level of the excavation body is 15m, the slope is 1:0.5, the width of the ordinary horseway is 2m, and the width of a certain level of horseway with a cumulative height ≥45m and its multiples is 5m.

[0017] Preferably, the method of using the terrain surface for segmentation to obtain the slag yard entity model includes: for a slag pile body, if the highest level of its standard parameter model still cannot completely intersect with the terrain surface, then extending the starting and ending points of the guide line toward the mountain side at intervals of 1m and synchronously updating the standard parameter model until the highest level of the updated standard parameter model completely intersects with the terrain surface to obtain the slag yard entity model; for an excavated body, if the highest level of the standard parameter model still cannot completely intersect with the terrain surface, then increasing the number of levels at intervals of one level until the highest level of the standard parameter model completely intersects with the terrain surface to obtain the slag yard entity model.

[0018] Preferably, in S4, the volume difference of the slag yard entity model is calculated by the following formula:

[0019]

[0020] Among them, V 体量 Represents the volume of the slag yard entity model, V 规划 Indicates the planned volume.

[0021] Preferably, the planning rules in S4 include:

[0022] When the volume difference is less than 5% of the planned volume or the volume difference is greater than 10% of the planned volume, the trial calculation is performed by adjusting the parameters of the slag yard physical model or its guide lines until 5% of the planned volume ≤ volume difference ≤ 10% of the planned volume, and the trial calculation is terminated.

[0023] Preferably, the trial calculation by adjusting various parameters of the slag yard entity model includes:

[0024] When 5% of the planned volume ≤ volume difference ≤ 10% of the planned volume, the slag yard entity is output;

[0025] When the volume difference is greater than 10% of the planned volume or the volume difference is less than 5% of the planned volume, the parameters of the slag yard entity model (the slag yard is a slag pile) are adjusted as follows:

[0026] ① When the volume difference is greater than 10% of the planned volume, the height of the highest level shall be reduced by 1m intervals for trial calculation. If the height of the highest level is 0 and still cannot meet the requirements, the number of levels shall be reduced and the volume difference shall be calculated according to the above method until the requirements are met;

[0027] ② When the volume difference is less than 5% of the planned volume, it is preferred to increase one level. If one level is increased, the default height is used for trial calculation. If the trial calculation result meets the requirements, the trial calculation ends. If it does not meet the requirements, there are two cases:

[0028] a. After increasing the default height by one level, if the volume difference is greater than 10% of the planned volume, it shall be adjusted according to the trial calculation method in case ① until the requirements are met;

[0029] b. After increasing the default height by one level, if the volume difference is less than 5% of the planned volume, continue the trial calculation according to the trial calculation steps in situation ② until the requirements are met.

[0030] Preferably, the trial calculation by adjusting various parameters of the slag yard entity model further comprises:

[0031] Make the following adjustments to the slag yard entity model (this slag yard is an excavation body):

[0032] When the volume difference is greater than 10% of the planned volume, the vector length of each point in the guide line is shortened at 1m intervals. Until the trial calculation meets the requirements;

[0033] When the volume difference is less than 5% of the planned volume, the vector length of each point in the guide line is increased synchronously at 1m intervals. Until the trial calculation meets the requirements.

[0034] The guide line generation module is used to generate the guide line of the slag field, that is, the starting or ending line. First, at least two points A(X A ,Y A )、B(X B ,Y B ), the module input is a slag pile or an excavation. For an excavation, by default, it searches for a point a(X a ,Y a ), so that Minimum, get the direction vector Similarly, we get the direction vector of point B Set the length L on this direction vector to get points A' and B', and connect A, A', B', and B with line segments to get the excavation end line; for the slag pile, Axisymmetric get by Axisymmetric Set the length L on the direction vector to get A' and B', and connect A, A', B', and B with line segments in sequence to get the slag pile starting line; the module can realize the dragging and positioning of A' and B' to get the manually set points to form the starting or ending line.

[0035] The entity model module first establishes a standard parameter model of a slag pile or excavation body, and uses the slag pile or excavation body information input in the guide line generation module, takes the guide line as the starting slope or ending line, and inputs the slag pile or excavation level to call the standard parameter model of the slag pile or excavation body to generate a slag yard standard model; further, the terrain surface generated by the contour points or contour lines is used to segment the above-mentioned slag pile or excavation body to obtain a slag yard entity model; for the slag pile, if its highest level slag pile still cannot completely intersect with the terrain surface, the entity model module extends the guide line starting and ending points toward the mountain side at intervals of 1m until the highest level slag pile can completely intersect with the terrain surface; for the excavation body, if its highest level excavation still cannot completely intersect with the terrain surface, the entity model module increases the level at intervals of one level until the highest level excavation can completely intersect with the terrain surface.

[0036] The parameter calculation module inputs the planned volume of the slag yard, and measures the volume of the slag pile or excavation body based on the slag yard physical model generated by the physical model module to obtain its volume. This volume is compared with the planned volume until the planning rules are met (the volume difference is between 5% and 10% of the planned volume). It is considered that a reasonable slag yard planning has been obtained, and the slag yard entity is output. The module also supports manual adjustment, including manual movement of the midpoint position in the guide line generation module and manual adjustment of the parameters of the slag pile or excavation entity.

[0037] The drawing module is designed. You can choose to draw or not according to actual needs. If you choose to draw, select a point in the topographic map as a reference point, and output the top view of the outer contour of the slag pile or excavation body solid model in the selected scale format, and finally get the slag yard plan design drawing.

[0038] Beneficial effects of the present invention:

[0039] 1. This solution creates a standard parameter model by generating guide lines, generates a standard model of the slag yard using the guide lines as reference lines, segments the standard model of the slag yard using the terrain surface to obtain a solid model of the slag yard, and then calculates the volume difference of the solid model of the slag yard until the planning rules are met to obtain the slag yard entity. Finally, the top view plane contour is derived from the reference point to achieve the design drawing. The method has a complete process, a standard model, and strong applicability. At the same time, the method realizes standard process and automation. The slag yard design can be automatically obtained by inputting basic reference points, reference lengths, slag yard selection, and levels, and can also be manually adjusted to obtain the slag yard design. The present invention achieves the effects of design process, standardization, and flexibility. Compared with the traditional method of two-dimensional design using the offset, cutting, and platform calculation of the starting line or end line (guide line), it greatly improves the efficiency of designers and the intuitiveness of solution presentation.

[0040] 2. This scheme generates the core design bottom boundary of the slag yard through the guide line generation module, and obtains the guide line by forming the boundary with the direction length as the parameter through at least two reference points and their reference directions; the solid model module constructs the standard parameter model of the standardized slag yard, and uses the guide line as the reference line to establish the sketch outline with the slag pile or excavation level, height, and slope ratio as parameters to form the standard model of the slag yard, and obtains the slag yard entity model by segmenting the original terrain surface; the parameter calculation module debugs the parameters of the entity model, imports the planned slag pile or excavation capacity parameters into the module, and adjusts the parameters such as the guide line direction length, slag pile or excavation height, slope ratio, etc. by comparing the planned capacity with the entity capacity, so as to obtain the slag yard entity of the planned capacity; the design drawing module draws the final slag yard design, and exports the general DWG format plane design drawings from a bird's eye view with the reference point coordinates as the reference.

[0041] 3. Compared with the prior art, the present invention is more efficient, accurate and highly visualized than the original two-dimensional design.

[0042] 4. This scheme sets at least two reference points and their reference directions on a certain elevation line of the proposed range topographic map, and uses the direction length as a parameter to form a boundary to obtain a guide line. Setting reference points and guide lines can clearly define the boundaries of the design, help designers to clearly identify the starting and ending points of the design, and provide a reference framework for the terrain, which helps to make more effective use of space to make decisions about layout, direction and form during the design process. In addition, only the parameters of the guide lines and the standard parameter model need to be modified to obtain a solid model of the slag yard that fits the terrain surface, thereby reducing errors, improving design accuracy, and better adapting to the terrain, thereby saving design time. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts.

[0044] Figure 1 It is a schematic diagram of the process of the present invention;

[0045] Figure 2 A schematic diagram of generating a guide line provided in an embodiment of the present invention Figure 1 ;

[0046] Figure 3 A schematic diagram of generating a guide line provided in an embodiment of the present invention Figure 2 ;

[0047] Figure 4A schematic diagram of guide line generation using AutoCAD software as an example provided in an embodiment of the present invention;

[0048] Figure 5 Importing node coordinates into the CATIA software provided in the embodiment of the present invention to generate a guide line diagram;

[0049] FIG6 is a diagram of a process of drawing a parameter profile on a normal plane based on a reference line according to an embodiment of the present invention;

[0050] 7 is a schematic diagram of generating a standard parameter model along a guide center line using a parameter profile according to an embodiment of the present invention;

[0051] FIG8 is a schematic diagram of a guide line calling a standard parameter model to generate a standard model of a slag field according to an embodiment of the present invention;

[0052] 9 is a schematic diagram of generating a CATIA software Nurbs terrain surface using AutoCAD software terrain points according to an embodiment of the present invention;

[0053] FIG10 is a schematic diagram of a process of segmenting a standard slag yard model using a terrain surface provided by an embodiment of the present invention;

[0054] FIG11 is a schematic diagram of measuring the volume of a slag yard entity model according to an embodiment of the present invention;

[0055] FIG12 is a schematic diagram of parameterized update of a slag yard entity model according to an embodiment of the present invention;

[0056] Fig.13 The three-dimensional slag yard provided in the embodiment of the present invention is exported as a planar design schematic diagram in DWG format. DETAILED DESCRIPTION

[0057] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation method described herein is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0058] Embodiment 1: In the first aspect, as Figure 1 As shown, a three-dimensional parametric design method for a slag yard includes:

[0059] S1. Set at least two reference points and their reference directions on a certain elevation line of the proposed range topographic map, and use the direction length as a parameter to form a boundary to obtain a guide line.

[0060] Specifically, in S1, generating a guide line includes the following steps:

[0061] Sa, set at least two points A(X A ,Y A )、B(X B ,Y B );

[0062] Sb, input slag pile or excavation body. For excavation body, by default, it is searched on the elevation contour line near the set point. The smallest point a(X a ,Y a ), get the direction vector Similarly, we get the direction vector of point B Set the length L on this direction vector to get points A' and B';

[0063] Sc. Connect A, A', B', and B in sequence with line segments to obtain a guide line.

[0064] Specifically, the slag pile body includes Axisymmetric get by Axisymmetric A' and B' are obtained by setting the lengths based on engineering experience on the direction vector, and A, A', B', and B are connected in sequence with line segments to obtain a guide line.

[0065] Specifically, the default height of each level of the slag pile is 10m, the slope is 1:2, the width of the ordinary horseway is 2m, and the width of a certain level of horseway with a cumulative height ≥50m and its multiples is 5m; the default height of each level of the excavation body is 15m, the slope is 1:0.5, the width of the ordinary horseway is 2m, and the width of a certain level of horseway with a cumulative height ≥45m and its multiples is 5m.

[0066] In this embodiment, at least two reference points and their reference directions are set on a certain elevation line of the proposed range topographic map, and the direction length is used as a parameter to form a boundary to obtain a guide line. The setting of the reference points and the guide lines can clearly define the boundary of the design, help the designer to clearly identify the starting point and end point of the design, and also provide a reference framework for the terrain, which is helpful to more effectively utilize the space to make decisions about layout, direction and form during the design process. In addition, only the parameters of the guide lines and the standard parameter model need to be modified to obtain a solid model of the slag yard that fits the terrain surface, thereby reducing errors, improving the accuracy of the design, and better adapting to the terrain, thereby saving design time.

[0067] It is understandable that in the slag yard design process, the slag yard includes the slag yard and the material yard, and the design processes of the slag yard and the material yard are generally similar. In the whole plan, the distinguished steps are clearly explained, and the steps that are not described separately for the slag yard and the material yard are common parts and do not need to be distinguished.

[0068] S2. Create a reference line, use the normal plane contour of the reference line as the stretching object, and stretch in the extension direction of the reference line to generate a standard parameter model.

[0069] S3. Using the guide line as a reference line, calling the standard parameter model, generating a standard model of the slag yard, and segmenting the model using the terrain surface to obtain a solid model of the slag yard.

[0070] Specifically, the method of using the terrain surface for segmentation to obtain the slag yard entity model includes: for a slag pile body, if the highest level of its standard parameter model still cannot completely intersect with the terrain surface, then extending the starting and ending points of the guide line toward the mountain side at intervals of 1m and synchronously updating the standard parameter model until the highest level of the updated standard parameter model completely intersects with the terrain surface to obtain the slag yard entity model; for an excavated body, if the highest level of the standard parameter model still cannot completely intersect with the terrain surface, then increasing the number of levels at intervals of one level until the highest level of the standard parameter model completely intersects with the terrain surface to obtain the slag yard entity model.

[0071] S4. Calculate the volume difference of the slag yard entity model until the planning rules are met to obtain the slag yard entity.

[0072] Specifically, in S4, the volume difference of the slag yard entity model is calculated by the following formula:

[0073] Among them, V 体量 Represents the volume of the slag yard entity model, V 规则 Indicates the planned volume.

[0074] Specifically, the planning rules in S4 include:

[0075] When the volume difference is less than 5% of the planned volume or the volume difference is greater than 10% of the planned volume, the trial calculation is performed by adjusting the parameters of the slag yard physical model or its guide lines until 5% of the planned volume ≤ volume difference ≤ 10% of the planned volume, and the trial calculation is terminated.

[0076] Specifically, the trial calculation by adjusting various parameters of the slag yard entity model includes:

[0077] When 5% of the planned volume ≤ volume difference ≤ 10% of the planned volume, the slag yard entity is output;

[0078] When the volume difference is greater than 10% of the planned volume or the volume difference is less than 5% of the planned volume, the parameters of the slag yard entity model, i.e. the slag body, are adjusted as follows:

[0079] ① When the volume difference is greater than 10% of the planned volume, the height of the highest level shall be reduced by 1m intervals for trial calculation. If the height of the highest level is 0 and still cannot meet the requirements, the number of levels shall be reduced and the volume difference shall be calculated according to the above method until the requirements are met;

[0080] ② When the volume difference is less than 5% of the planned volume, it is preferred to increase one level. If one level is increased, the default height is used for trial calculation. If the trial calculation result meets the requirements, the trial calculation ends. If it does not meet the requirements, there are two cases:

[0081] a. After increasing the default height by one level, if the volume difference is greater than 10% of the planned volume, it shall be adjusted according to the trial calculation method in case ① until the requirements are met;

[0082] b. After increasing the default height by one level, if the volume difference is less than 5% of the planned volume, continue the trial calculation according to the trial calculation steps in situation ② until the requirements are met.

[0083] Specifically, the trial calculation by adjusting various parameters of the slag yard entity model also includes:

[0084] The solid model of the slag yard, that is, the excavation body, is adjusted as follows:

[0085] When the volume difference is greater than 10% of the planned volume, the vector length of each point in the guide line is shortened at 1m intervals. Until the trial calculation meets the requirements;

[0086] When the volume difference is less than 5% of the planned volume, the vector length of each point in the guide line is increased synchronously at 1m intervals. Until the trial calculation meets the requirements.

[0087] S5. Based on the requirements, take the slag yard entity as the object, select the top view angle, scale and reference coordinate points to export the general two-dimensional drawing, and obtain the slag yard plane design drawing.

[0088] This embodiment generates a guide line to create a standard parameter model, generates a slag yard standard model with the guide line as the reference line, uses the terrain surface to segment the slag yard standard model to obtain a slag yard entity model, and then calculates the volume difference of the slag yard entity model until the planning rules are met to obtain the slag yard entity. Finally, the top view plane contour is derived from the reference point to achieve the design drawing. The method has a complete process flow, a standard model, and strong applicability. At the same time, the method realizes standard process and automation. The slag yard design can be automatically obtained by inputting the basic reference point, reference length, slag yard selection and level, and can also be manually adjusted to obtain the slag yard design. The present invention achieves the effect of design process, standardization and flexibility. Compared with the traditional method of two-dimensional design using the starting line or end line (guide line) offset, cutting, and platform calculation, it greatly improves the efficiency of designers and the intuitiveness of scheme display.

[0089] In the second aspect, the present application also proposes a 3D parametric design system for a slag yard, which is implemented by a 3D parametric design method for a slag yard, specifically including:

[0090] The guide line generation module is used to generate the guide line of the slag field, that is, the starting or ending line. First, at least two points A(X A ,Y A )、B(X B ,Y B ), the module input is a slag pile or an excavation. For an excavation, by default, it searches for a point a(X a ,Y a ), so that Minimum, get the direction vector Similarly, we get the direction vector of point B Set the length L on this direction vector to get points A' and B', and connect A, A', B', and B with line segments to get the excavation end line; for the slag pile, Axisymmetric get by Axisymmetric Set the length L on the direction vector to get A' and B', and connect A, A', B', and B with line segments in sequence to get the slag pile starting line; the module can realize the dragging and positioning of A' and B' to get the manually set points to form the starting or ending line.

[0091] The entity model module first establishes a standard parameter model of a slag pile or excavation body, and uses the slag pile or excavation body information input in the guide line generation module, takes the guide line as the starting slope or ending line, and inputs the slag pile or excavation level to call the standard parameter model of the slag pile or excavation body to generate a slag yard standard model; further, the terrain surface generated by the contour points or contour lines is used to segment the above-mentioned slag pile or excavation body to obtain a slag yard entity model; for the slag pile, if its highest level slag pile still cannot completely intersect with the terrain surface, the entity model module extends the guide line starting and ending points toward the mountain side at intervals of 1m until the highest level slag pile can completely intersect with the terrain surface; for the excavation body, if its highest level excavation still cannot completely intersect with the terrain surface, the entity model module increases the level at intervals of one level until the highest level excavation can completely intersect with the terrain surface.

[0092] The parameter calculation module inputs the planned volume of the slag yard, and measures the volume of the slag pile or excavation body based on the slag yard physical model generated by the physical model module to obtain its volume. This volume is compared with the planned volume until the planning rules are met (the volume difference is between 5% and 10% of the planned volume). It is considered that a reasonable slag yard planning has been obtained, and the slag yard entity is output. The module also supports manual adjustment, including manual movement of the midpoint position in the guide line generation module and manual adjustment of the parameters of the slag pile or excavation entity.

[0093] The drawing module is designed. You can choose to draw or not according to actual needs. If you choose to draw, select a point in the topographic map as a reference point, and output the top view of the outer contour of the slag pile or excavation body solid model in the selected scale format, and finally get the slag yard plan design drawing.

[0094] In this embodiment, a guide line generation module is used to generate a core design bottom boundary of a slag yard. A guide line is obtained by forming a boundary with a direction length as a parameter through at least two reference points and their reference directions. A physical model module is used to construct a standardized slag yard physical model. A sketch outline with slag dump or excavation level, height, and slope ratio as parameters is established with the guide line as a reference line to form a standard model of the slag yard. The real entity of the slag yard is obtained by segmenting the original terrain surface. A parameter calculation module is used to debug the parameters of the physical model. The planned slag dump or excavation capacity parameters are imported into the module. By comparing the planned capacity with the actual capacity, the parameters such as the guide line direction length, slag dump or excavation height, and slope ratio are adjusted to obtain a slag yard entity of the planned capacity. A design drawing module is used to draw a design of the final slag yard. A general DWG format plane design drawing is exported from a bird's-eye view with the reference point coordinates as a reference.

[0095] Compared with the prior art, the present invention is more efficient, accurate and highly visualized than the original two-dimensional design.

[0096] Embodiment 2: The present invention is described in detail below with reference to the accompanying drawings and a specific embodiment of AutoCAD+CATIA software to facilitate understanding by designers.

[0097] Step 1, such as Figure 2 and Figure 5 As shown in the figure, at least two points X are set on a certain elevation line of the proposed slag dump or excavation range topographic map i , set the direction vector based on the point Set the length of this direction vector Get the inner (outer) boundary point X i', connect the boundary points with straight lines to obtain the boundary line, i.e. the starting or ending guide line; specifically, taking AutoCAD software as an example, set two points A (X = 2912502.066, Y = 507229.817) and B (X = 2912358.941, Y = 507341.049) on the EL.1850m elevation contour line, and find two points a (X = 2912499.170, Y = 507227.934) and b (X = 2912358.900, Y = 507339.213) on the EL.1851m elevation contour line so that and Minimum, given length La = 161m, Lb = 191m, get point A' (X = 2912367.084, Y = 507142.063) and point B' (X = 2912354.715, Y = 507150.096), connect A, A', B', B to get the end line, similarly you can get the slope line; import the obtained guide line coordinate nodes into CATIA to get the model reference line, see Figure 5 .

[0098] Step 2, such as Figure 6(a) to Figure 6(d) As shown, taking CATIA software as an example, in its part design interface, a line segment is set as the reference line, and the reference line is used as the guiding center line. On its normal plane, a contour with bottom height / width, slope, nth level height and nth level horse trail width as parameters is constructed, wherein the bottom height of the contour is the normal plane origin extending along the negative direction of the Y coordinate axis by the length H, the bottom / bottom width is the normal plane origin extending along the negative direction of the X coordinate axis by the length D, the first-level width is the normal plane origin extending along the positive direction of the X coordinate axis by the length D1, the first-level height is the normal plane origin extending along the positive direction of the Y coordinate axis by the length H1 to obtain the first-level horse trail starting point (D1, H1), and the first-level horse trail end point (D1+L1, H1) is obtained by extending the length L1 from the starting point of the first-level horse trail along the positive direction of the X coordinate. The nth level horse trail is taken as the origin, and the n+1th level is drawn in the same way, and finally the highest point is extended along the negative direction of the Y axis by the length Get the point / Extend along the negative direction of the X axis Get the point The contour of the slag pile / excavation body is obtained by closing (the default value of the bottom height / width is 100m to ensure that the first level of the slag pile / excavation body can intersect with the terrain surface, and the nth level width = nth level height × nth level slope, that is, Dn = Hn × p); the ribs are defined along the guide center line along the contour to obtain the entity as shown in Figure 7(a) and (b); the bottom height / width, slope, nth level height and nth level bridleway width are published in the form of parameters using the knowledge engineering template, as shown in Figure 7(c), completing the construction of the standard parameter model.

[0099] Step 3, such as Figure 8(a) to Figure 8(b)As shown, in the part design module of CATIA, the standard parameter model of the knowledge engineering template is called, the guide line generated in step 1 is selected as the reference line, the endpoint of the reference line is selected to determine the rib definition direction, and the model parameters are input to obtain the standard model of the slag yard.

[0100] Step 4: Use DotA software to read the ASCII information of the three-dimensional coordinate points of the terrain points in AutoCAD software, as shown in Figure 9(a). Import this asc file into the Digitized Shape Editor module of CATIA to generate a mesh point cloud, as shown in Figure 9(b). Continue to further smooth the mesh point cloud in the Digitized Shape Editor module of CATIA to generate a Nurbs terrain surface, as shown in Figure 9(c). Use the terrain surface to segment the standard model of the slag yard, and obtain the solid model of the slag yard as shown in Figures 10(a) and 10(b).

[0101] Step 5, such as Figure 11(a) to Figure 12(b) As shown in the figure, the volume of the slag yard entity model was measured using the inertia measurement command in CATIA software. The actual slag pile capacity is 988,100 m 3 , see Figure 11(a), and the planned volume is 880,000 m 3 Compared with the above (according to Article 5.2.1 of NB / T 35120-2018 "Code for General Layout Design of Hydropower Engineering Construction": The planned amount of slag dump should be consistent with the capacity of the slag dump, and the total volume of slag dump should be 1.05 to 1.10 times the planned slag dump) greater than 10%, the seventh level height in the model parameters is modified to 9m for update, as shown in Figure 12(a), and the final capacity is 950,300 m 3 , as shown in Figure 12(b), the design requirements are met and the update is completed; the actual excavation volume is measured to be 717,300 m 3 , see Figure 11(b), and the planned volume is 670,000 m 3 The ratio is 1.07 times, which is within the range of 5% to 10%, meets the design requirements and does not need to be updated.

[0102] Step 6: Use the engineering drawing module in CATIA software, select the scale of 1:1000 (default drawing scale), and export the slag yard solid model into a DWG format plan design drawing from a bird's-eye view. Fig.13 The default reference point is the CATIA origin (X=0, Y=0), which is actually the real terrain point (X=2912400, Y=506000). Using this as a reference, the plane outline is moved to the real position to obtain the actual planning design drawing.

[0103] This embodiment achieves the effects of streamlined, standardized and flexible design. Compared with the traditional method of two-dimensional design using the offset, cutting and platform calculation of the starting line or the end line (guide line), it greatly improves the efficiency of designers and the intuitiveness of the scheme display, and intuitively and clearly shows the process of three-dimensional parametric design of the slag yard.

[0104] The above specific embodiments are preferred embodiments of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the present specific embodiments. All equivalent changes made in accordance with the shape, structure, and method of the present invention are within the protection scope of the present invention.

Claims

1. A three-dimensional parametric design method for a slag yard, characterized in that: The steps include: S1. Set at least two reference points and their reference directions on a certain elevation line of the proposed range topographic map, and use the direction length as a parameter to form a boundary to obtain a guide line; S2. Create a reference line, take the normal plane contour of the reference line as the stretching object, and stretch in the extension direction of the reference line to generate a standard parameter model; S3, calling the standard parameter model with the guide line as the reference line, generating a standard model of the slag yard and segmenting it using the terrain surface to obtain a solid model of the slag yard; S4, calculating the volume difference of the slag yard entity model until the planning rules are met to obtain the slag yard entity; S5. Based on the requirements, take the slag yard entity as the object, select the top view angle, scale and reference coordinate points to export the general two-dimensional drawing, and obtain the slag yard plane design drawing.

2. A three-dimensional parametric design method for a slag yard according to claim 1, characterized in that: In S1, generating a guide line includes the following steps: Sa, set at least two points A(X A ,Y A )、B(X B ,Y B ); Sb, input slag pile or excavation body. For excavation body, by default, it is searched on the elevation contour line near the set point. The smallest point a(X a ,Y a ), get the direction vector Similarly, we get the direction vector of point B Set the length L on this direction vector to get points A' and B'; Sc. Connect A, A', B', and B in sequence with line segments to obtain a guide line.

3. A three-dimensional parametric design method for a slag yard according to claim 2, characterized in that: The slag body comprises Axisymmetric get by Axisymmetric A' and B' are obtained by setting the lengths based on engineering experience on the direction vector, and A, A', B', and B are connected in sequence with line segments to obtain a guide line.

4. The three-dimensional parameterized design method of a slag yard according to claim 1, characterized in that: The default height of each level of the slag pile is 10m, the slope is 1:2, the width of the ordinary horseway is 2m, and the width of a certain level of horseway with a cumulative height ≥50m and its multiples is 5m; the default height of each level of the excavation body is 15m, the slope is 1:0.5, the width of the ordinary horseway is 2m, and the width of a certain level of horseway with a cumulative height ≥45m and its multiples is 5m.

5. A three-dimensional parametric design method for a slag yard according to claim 4, characterized in that: The method of using the terrain surface to segment and obtain the slag yard entity model includes: for a slag pile body, if the highest level of its standard parameter model still cannot completely intersect with the terrain surface, then extending the starting and ending points of the guide line toward the mountain side at intervals of 1m and synchronously updating the standard parameter model until the highest level of the updated standard parameter model completely intersects with the terrain surface to obtain the slag yard entity model; for an excavated body, if the highest level of the standard parameter model still cannot completely intersect with the terrain surface, then increasing the number of levels at intervals of one level until the highest level of the standard parameter model completely intersects with the terrain surface to obtain the slag yard entity model.

6. The three-dimensional parameterized design method of a slag yard according to claim 1, characterized in that: In S4, the volume difference of the slag yard entity model is calculated by the following formula: Among them, V 体量 Represents the volume of the slag yard entity model, V 规划 Indicates the planned volume.

7. A three-dimensional parametric design method for a slag yard according to claim 6, characterized in that: The planning rules in S4 include: When the volume difference is less than 5% of the planned volume or the volume difference is greater than 10% of the planned volume, the trial calculation is performed by adjusting the parameters of the slag yard physical model or its guide lines until 5% of the planned volume ≤ volume difference ≤ 10% of the planned volume, and the trial calculation is terminated.

8. A three-dimensional parametric design method for a slag yard according to claim 7, characterized in that: The trial calculation by adjusting various parameters of the slag yard entity model includes: When 5% of the planned volume ≤ volume difference ≤ 10% of the planned volume, the slag yard entity is output; When the volume difference is greater than 10% of the planned volume or the volume difference is less than 5% of the planned volume, the parameters of the slag yard entity model are adjusted as follows: ① When the volume difference is greater than 10% of the planned volume, the height of the highest level shall be reduced by 1m intervals for trial calculation. If the height of the highest level is 0 and still cannot meet the requirements, the number of levels shall be reduced and the volume difference shall be calculated according to the above method until the requirements are met; ② When the volume difference is less than 5% of the planned volume, it is preferred to increase one level. If one level is increased, the default height is used for trial calculation. If the trial calculation result meets the requirements, the trial calculation ends. If it does not meet the requirements, there are two cases: a. After increasing the default height by one level, if the volume difference is greater than 10% of the planned volume, it shall be adjusted according to the trial calculation method in case ① until the requirements are met; b. After increasing the default height by one level, if the volume difference is less than 5% of the planned volume, continue the trial calculation according to the trial calculation steps in situation ② until the requirements are met.

9. The three-dimensional parameterized design method of a slag yard according to claim 7, characterized in that: The trial calculation by adjusting various parameters of the slag yard entity model also includes: Adjust the slag yard entity model as follows: When the volume difference is greater than 10% of the planned volume, the vector length of each point in the guide line is shortened at 1m intervals. Until the trial calculation meets the requirements; When the volume difference is less than 5% of the planned volume, the vector length of each point in the guide line is increased synchronously at 1m intervals. Until the trial calculation meets the requirements.

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