Three-dimensional construction method of concrete faced rockfill dam copper water stop structure

Abstract

The invention provides a three-dimensional construction method for a copper water stop structure of a concrete faced rockfill dam, and relates to the technical field of water conservancy and hydropower engineering.The method comprises the steps that all-parameterized contour templates of a standard section, a two-way elbow section and a three-way elbow section of a copper water stop are constructed; obtaining characteristic parameters through a preset strategy; based on the obtained characteristic parameters, generating a joint space line of a horizontal joint of the wave wall and a joint peripheral joint of the toe board and the panel; calculating position coordinates of intersection points of all the seam space lines; generating three-dimensional models of the copper water stop standard section, the two-way elbow section and the three-way elbow section; classified statistics of the number of standard sections and all elbow sections is completed; and classifying and generating construction drawings of the copper water-stop anisotropic joints and the standard sections. According to the method, the integrated design of modeling, amount calculation and plotting of the water stop structure is realized, and the design modeling efficiency and the design precision are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy and hydropower engineering, and in particular to a three-dimensional construction method of a copper waterstop structure of a panel rockfill dam. Background Art

[0002] In the upstream anti-seepage system of concrete panel rockfill dam, the toe plate (toe wall), panel, wave-breaking wall and connecting plate in special cases are all concrete structures. In order to ensure that the concrete structure can adapt to the deformation, settlement and temperature deformation of the rockfill body, a water-stopping structure needs to be set at the joint of the structure. The wave-breaking wall, toe plate, panel, anti-seepage curtain, anti-seepage wall and joint water-stopping structure constitute a closed anti-seepage system. However, due to the effect of water pressure, the main concrete structures such as toe plate and panel are prone to complex deformation, and large structural displacement often occurs between structures. The joint water-stopping as a connector of the concrete structure is the weakest link in the anti-seepage design.

[0003] Traditional water-stop structure design often adopts two-dimensional plane design, and describes the shape of the water-stop structure through two-dimensional lines, especially for the peripheral seams between the panel and the toe board and the vertical seams between the panels. This design method is inefficient in drawing the shape of the water-stop structure and the structural details. At the same time, it is difficult to ensure the accuracy of the engineering quantity statistics of the anisotropic water-stop joints, peripheral seams, and vertical seams. At the same time, since the two-dimensional plane is difficult to intuitively show the three-dimensional characteristics of the water-stop structure, it brings certain challenges to the engineering construction and technical disclosure.

[0004] With the rapid development of BIM technology, some units have made preliminary explorations in the three-dimensional design of water-stop structures. They pre-specify the water-stop type, then design the cross-sectional form and size of the water-stop structure at each structural joint, and then input these design information into the three-dimensional design platform for modeling. Although this method pushes the design of water-stop structures into the three-dimensional field, its modeling process is cumbersome and extremely inefficient. Especially in dealing with spatial anisotropic joints, the modeling difficulty increases sharply, seriously affecting the design efficiency. In addition, in terms of automatic quantity calculation, although there is a certain improvement compared with traditional two-dimensional design, the calculation efficiency is still relatively low. At the same time, it lacks systematicity and repeatability, and it is difficult to achieve an integrated process of modeling, quantity calculation and drawing. In view of this, at the moment when the construction of pumped-storage power stations is accelerating, how to greatly improve the systematicity, efficiency, accuracy and repeatability of the three-dimensional design of water-stop structures has become a key problem that needs to be overcome. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a three-dimensional construction method of the copper water stop structure of a face rockfill dam.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A three-dimensional construction method for a copper water-stop structure of a panel rockfill dam comprises the following steps: step S1, constructing a universal contour template of a copper water-stop standard section, and constructing fully parameterized three-dimensional models corresponding to a two-way elbow section and a three-way elbow section of the copper water-stop respectively based on the universal contour template; step S2, obtaining characteristic parameters through a preset strategy, wherein the characteristic parameters include the axis of a dam to be built, a toe plate control point, a panel joint, a wave-breaking wall structure and joint parameters; step S3, based on the obtained characteristic parameters, calculating the bottom spatial position of a horizontal joint of the wave-breaking wall and a peripheral joint connecting the toe plate and the panel, and generating a joint space line of the horizontal joint of the wave-breaking wall and the peripheral joint connecting the toe plate and the panel; step S4, calculating the intersection position coordinates of all joint space lines, Automatically determine the elbow type and the type of copper waterstop joint at each intersection and classify and identify them; step S5, according to the preset data of copper waterstop parameters, classify by type and elbow form, and generate three-dimensional models of copper waterstop standard sections, two-way elbow sections and three-way elbow sections; step S6, based on the contour templates of various standard sections generated in step S5, the three-dimensional model of the two-way elbow section, and the three-way elbow section, classify and count the length attributes of the contour module of the standard section, the number attributes of the two-way elbow section and the three-way elbow section, and complete the classification and statistics of the number of standard sections and all elbow sections; step S7, perform stereoscopic projection, model sectioning and three-dimensional perspective processing on the copper waterstop of the panel rockfill dam, and classify and generate the construction drawings of the copper waterstop heterosexual joints and standard sections.

[0008] Based on the above technical solution, further, in step S1, the construction process is: step S11, using three-dimensional modeling software, to establish a universal parameterized contour template for the standard segment, and divide the standard segment into two types of contour templates, namely (D, W, F) common type and V-type, wherein the water-stop parameters corresponding to the contour template of the (D, W, F) common type include single-side width, left leg height, left leg height, nose height, nose width and nose radius, and the water-stop parameters corresponding to the V-type contour template include water-stop width, bottom angle, leg height, nose height, nose width and nose radius, and the insertion points of the (D, W, F) common type and V-type copper water-stop are the center line of the copper nose and the water-stop At the intersection of the bottom plate; step S12, based on the various water-stop parameters and the universal contour template in step S11, establish a universal fully parametric three-dimensional model of the two-way elbow section with a fully parametric (W, F) common type and a universal fully parametric three-dimensional model of the three-way elbow section with a fully parametric (W, F) common type; at the same time, generate the (D, W, F) common type and V-shaped standard section parametric contour templates based on the universal contour template generated in step S11, repeat the generation steps of the fully parametric (W, F) common type of the two-way elbow section and the three-way elbow section, until the universal full-parameter full-parameter models of the (V, W) common type, the (V, F) common type and the (V, D) common type are generated.

[0009] Based on the above technical solution, further, in step S12, the process of establishing a fully parameterized universal three-dimensional model of a two-way elbow section is as follows: in addition to the parameters contained in the universal contour template of the (D, W, F) common standard section parameterized in step S11, this two-way elbow section also includes elbow length and elbow angle parameters. The generation process of the contour template corresponding to the two-way elbow section is as follows: first, according to the contour template of the (D, W, F) common standard section parameterized in step S11 and the elbow length increased by 2m, two standard sections are generated along the guide line direction based on the parameters of the contour template corresponding to the two-way elbow section, and then the excess parts on both sides are cut off using the elbow angle bisector as the dividing line for Boolean operation to form an overall three-dimensional model, thereby completing the fully parameterized three-dimensional model of the universal two-way elbow section of the (W, F) common type, wherein the elbow insertion point is the intersection of the guide lines.

[0010] Based on the above technical solution, further, the process of establishing a fully parameterized (W, F) common type universal three-dimensional model of the tee elbow section is: setting the initial position and the end position, this tee elbow section includes the guide line angle and the elbow length in addition to the (D, W, F) common type contour template parameters in step S11, and constructing a T-shaped guide line according to the elbow length and the guide line angle, and generating a model of the intersection of copper water stop columns and copper noses according to the T-shaped conductor, and then cutting off the excess parts of the intersection columns and copper noses, and finally generating a fully parameterized three-dimensional model of the universal (W, F) common type tee elbow section, wherein the intersection of the T-shaped guide lines is the insertion point of the tee elbow.

[0011] Based on the above technical solution, further, in step S3, the process includes the following steps: step S31, input the three-dimensional coordinates of the dam axis, connect them into a three-dimensional polyline of the dam axis through the coordinate points, and set the direction of the three-dimensional polyline of the dam axis, wherein the right side of the set direction is the upstream surface of the panel rockfill dam; step S32, horizontally offset the three-dimensional polyline of the dam axis along the upstream surface of the panel rockfill dam by half of the dam crest width, and then vertically offset it downward by a value of △T to obtain the three-dimensional polyline of the dam axis after the offset, and the three-dimensional polyline at this time is the horizontal seam of the wave-breaking wall, and mark the three-dimensional polyline; wherein △T is the difference between the elevation of the dam crest and the elevation of the bottom of the wave-breaking wall; step S33, input the Y point in the flat toe board design as the control point, input the three-dimensional coordinates of the toe board control point, and connect them into a three-dimensional polyline in space through the coordinate points, and the three-dimensional polyline in space at this time is the joint space line of the peripheral seam where the toe board connects with the panel.

[0012] Based on the above technical solution, further, in step S4, the process includes: calculating the characteristic positioning points of the space elements of the horizontal seams and structural seams of the wave-breaking wall; and calculating the characteristic positioning points of the space elements of the tensile seams of the panel.

[0013] Based on the above technical solution, further, the calculation process of the characteristic positioning point of the spatial element of the panel tension joint is as follows: step A, calculate the intersection of the upper part of the panel vertical joint and the horizontal joint of the wave-breaking wall; step B, calculate the intersection of the lower part of the panel vertical joint and the peripheral joint of the toe plate; step C, calculate the intersection of the turning point of the vertical joint of the panel tension joint and the toe plate control line.

[0014] Based on the above technical solution, further, the calculation process of step B is as follows: step B1, based on the starting point coordinates and the end point coordinates in the bottom line of the horizontal seam of the wave-breaking wall and the panel, calculate the direction vector of the bottom line of the horizontal seam of the panel; step B2, calculate the plane equation of the plumb plane, and calculate the intersection point of the plumb plane and each toe control line, and at the same time, based on the classification and marking in the set VerticalSeam, make it a set NodePoint{Inter1 (tension seam), Inter2 (compression seam), ..., InterX (tension seam)}; step B3, through data screening, classify and mark the NodePoint{} set in step B2 The points of the compression seam are screened out to form a new point set CoPPoint{Inter1(compression seam), Inter2(compression seam), ..., InterX(compression seam)}; Step B4, the points in the set NodePoint{} and the toe board control lines to which they belong are screened, and according to the points in the set NodePoint{}, the straight line equations of each segment of the toe board control line formed by each toe board control point are respectively substituted, and finally the set VerticalSeam midpoint and control line logical attribution set SeamRelationShip{(Inter1=Point1(tension seam)=Y1-Y2)...} is established.

[0015] Based on the above technical solution, further, the calculation process of step C is as follows: step C1, according to the set SeamRelationShip{(Inter1=Point1(tension seam)=Y1-Y2), InterX=PointX(compression seam)=Yx-1-Yx)…} in step B4, the mark after the Point is classified according to the tension seam and the compression seam, and divided into two sets of tension seams and compression seams, namely OpSeamRelationShip{} set and PiSeamRelationShip{}; step C2, connect each InterX and PointX pair in the panel tension vertical seam set OpSeamRelationShip{} to form a straight line set AuyLine{Line1, Line2,…, Linex}, and mark the corresponding toe board control line; step C3, calculate each straight line in the straight line group in step C2 and the marked toe board control line, and calculate the angle group AuxAngle{angle1, angle2...anglex} according to the angle length LenghtL of the panel tension seam perpendicular to the toe board control line manually input by the user and the angle group AuxAngle{} in step C3, calculate the Inter point of the tension seam set OpSeamRelationShip according to the values ​​of LenghtL / Sin(AuxAngle) and LenghtL / Tan(AuxAngle), and calculate the extension length Leb1 along the straight line group AuyLine{} and the extension length Leb2 along the toe board control line, and calculate the extended spatial point coordinate set YSInterSection{ExPointX...} and the indentation point spatial point coordinate set SJ InterSection{IndPointX…}, each point in this set YSInterSection{} is the insertion point of the W-type elbow, and each point in this set SJInterSection{} is the insertion point of the (W, F) type tee elbow section.

[0016] Based on the above technical solution, further, in step S5, step S51, input the parameters of the parameterized contour template of the standard section; input the length parameters of the F-type and W-type two-way elbow sections; input the elbow length parameters of the (V, W) common type, (V, F) common type and (V, D) common type three-way elbow sections; according to the set elbow lengths of the two-way elbow and the three-way elbow, calculate the spatial position coordinates of the standard section of each water stop type; step S52, according to the parameters set in step S51, classify and generate copper water stop standard sections, two-way elbow sections and three-way elbow sections at the corresponding positions of the standard section, two-way elbow section and three-way elbow section.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention realizes the process design of water-stop structure through the relationship between the cross-sectional parameters of the water-stop structure and the position and intersection space of the structural joints, reduces the difficulty of three-dimensional design and modeling of water-stopping, improves the efficiency of water-stopping design, and makes up for the problems of difficult modeling, poor systematicity and low repeatability of traditional three-dimensional design, realizes the integrated design of water-stopping structure modeling, quantity calculation and drawing, and greatly improves the design modeling efficiency and design accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the process steps of the three-dimensional design method of the copper water-stop structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the parameters of the common parameterized profile template of the standard sections (D, W, F) in the copper water-stop structure of the present invention;

[0021] Figure 3 It is a schematic diagram of parameters of the standard section V-shaped parameterized profile template in the copper water stop structure of the present invention;

[0022] Figure 4 It is a schematic diagram of a fully parameterized three-dimensional model of a common universal two-way elbow for a copper water-stop structure (W, F) of the present invention;

[0023] Figure 5 It is a schematic diagram of a fully parameterized three-dimensional model of a common universal three-way elbow of the copper water-stop structure (W, F) of the present invention;

[0024] Figure 6 It is a schematic diagram of a universal full-parameter three-way model common to the copper water-stop structures (V, W), (V, F) and (V, D) of the present invention;

[0025] Figure 7 A schematic diagram of a three-dimensional model of the copper water-stop structure of the entire face rockfill dam created by the present invention;

[0026] Figure 8 For the present invention Figure 7 A local enlarged schematic diagram corresponding to part A of the copper waterstop structure of the integral panel rockfill dam created. DETAILED DESCRIPTION

[0027] The present invention is further described and illustrated below in conjunction with the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly without conflicting with each other.

[0028] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation mode of the present invention is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. The technical features in each embodiment of the present invention can be combined accordingly without conflicting with each other.

[0029] Example

[0030] Combination Figure 1-Figure 8 As shown, this embodiment provides a three-dimensional construction method of a copper water stop structure of a face rockfill dam, wherein: Figure 2 The H in the figure represents the insertion point, H1 represents the height of the left column, H2 represents the single-side width, H3 represents the nose height, H4 represents the nose width, H5 represents the nose radius, and H6 represents the bottom angle.

[0031] The specific steps include:

[0032] Step S1, construct a universal contour template for the standard section of copper waterstop, and construct fully parametric three-dimensional models corresponding to the two-way elbow section and the three-way elbow section of the copper waterstop based on the universal contour template; it should be noted that the contour template is a universal template, which is used for subsequent users to generate specific required models based on the universal contour template according to the project characteristics and set parameters.

[0033] Step S11, using 3D modeling software, establish a general parameterized contour template for standard sections, and divide the standard sections into two types of contour templates, namely (D, W, F) common type and V type, wherein the water-stopping parameters corresponding to the contour template of (D, W, F) common type include single-side width, left leg height, left leg height, nose height, nose width and nose radius, and the water-stopping parameters corresponding to the contour template of V type include water-stopping width, bottom angle, leg height, nose height, nose width and nose radius, and the insertion point of (D, W, F) common type and V type copper water-stopping is the intersection of the center line of the copper nose and the water-stopping bottom plate. It should be noted that the 3D modeling software can be selected from Autodesk Civil3D and the like.

[0034] Step S12: Based on the various water-stopping parameters and the universal contour template in step S11, a universal fully parametric three-dimensional model of the (W, F) common type of the two-way elbow section and a universal fully parametric three-dimensional model of the (W, F) common type of the three-way elbow section are established. At the same time, based on the universal contour template generated in step S11, the (D, W, F) common type and V-type standard section parametric contour templates are generated respectively, and the generation steps of the fully parametric (W, F) common type of the two-way elbow section and the three-way elbow section are repeated until the universal full-parameter full-parameter models of the (V, W) common type, the (V, F) common type and the (V, D) common type are generated.

[0035] In this embodiment, the process of the fully parameterized universal three-dimensional model of the two-way elbow section is as follows: in addition to the parameters contained in the universal contour template of the (D, W, F) common standard section parameterized in step S11, this two-way elbow section also includes elbow length and elbow angle parameters. The generation process of the contour template corresponding to the two-way elbow section is as follows: first, according to the contour template of the (D, W, F) common standard section parameterized in step S11 and the elbow length increased by 2m, according to the preset parameters, use the "sweep" function to generate two standard sections along the guide line direction of the contour template corresponding to the two-way elbow section, and then use the elbow angle bisector as the dividing line for Boolean operation to cut off the excess parts on both sides to form an overall three-dimensional model, thereby completing the fully parameterized three-dimensional model of the universal two-way elbow section of the (W, F) common type, wherein the elbow insertion point is the intersection of the guide lines.

[0036] In this embodiment, the process of the fully parameterized (W, F) common type universal three-dimensional model of the tee elbow section is: setting the initial position P1 and the end position P2. In addition to the (D, W, F) common type contour template parameters in step S11, this tee elbow section also includes the guide line angle and the elbow length. A T-shaped guide line is constructed according to the elbow length and the guide line angle. The "sweep" function operation is repeated according to the T-shaped guide wire to generate a model with copper water stop columns and copper nose intersections. Then, the "hollow" stretching function is used to cut off the excess parts of the intersection columns and copper noses, and finally a fully parameterized three-dimensional model of the (W, F) common type universal tee elbow section is generated, wherein the intersection of the T-shaped guide lines is the insertion point of the tee elbow.

[0037] In this embodiment, the generation process of the (V, W) common type fully parametric three-dimensional model is as follows: the parameters of the V-type water stop are set to a single-side width of 18 cm, a bottom angle of 144°, a nose height of 6 cm, a nose width of 1.5 cm, a nose radius of 0.75 cm, and an elbow length of 60 cm. The parameters of the W-type water stop are set to a single-side width of 18 cm, a left leg height of 7 cm, a right leg height of 7 cm, a nose height of 6 cm, a nose width of 1.5 cm, a nose radius of 0.75 cm, and an elbow length of 60 cm. The standard section model is generated by using the "Sweep" function according to the set parameters, and the V-type waterstop and W-type waterstop are processed at the intersection. The excess copper nose is cut off using the hollow stretched shape of the nose width and nose radius, and the hollow stretched body is created using the single-layer width parameters and leg height parameters of the waterstop structure. The columns at the intersection of the V-type waterstop and the W-type waterstop are cut off, thereby generating a fully parametric three-dimensional model of the (V, W) common two-way elbow section and three-way elbow section.

[0038] The generation process of the fully parametric 3D model of the (V, F) common type in this embodiment is as follows: the parameters of the V-type water stop are set to a single-side width of 18 cm, a bottom angle of 144°, a nose height of 6 cm, a nose width of 1.5 cm, a nose radius of 0.75 cm, and an elbow length of 60 cm. The parameters of the F-type water stop are set to a single-side width of 18 cm, a left leg height of 4 cm, a right leg height of 7 cm, a nose height of 6 cm, a nose width of 1.5 cm, a nose radius of 0.75 cm, and an elbow length of 60 cm. According to the set parameters, the "Sweep" function is used to generate a standard section model, and the V-type waterstop and F-type waterstop are processed at the intersection. Then the excess copper nose is cut off using the hollow stretched shape of the nose width and nose radius, and the hollow stretched body is created using the single-layer width parameters and leg height parameters of the waterstop structure. The columns at the intersection of the V-type waterstop and the F-type waterstop are cut off, thereby generating a three-dimensional model of the full parameters of the (V, F) common two-way elbow section and three-way elbow section.

[0039] In this embodiment, the generation process of the (V, D) common type fully parametric three-dimensional model is as follows: the parameters of the V-type water stop are set to a single-side width of 18 cm, a bottom angle of 144°, a nose height of 6 cm, a nose width of 1.5 cm, a nose radius of 0.75 cm, and an elbow length of 60 cm. The parameters of the D-type water stop are set to a single-side width of 18 cm, a left leg height of 0 cm, a right leg height of 0 cm, a nose height of 6 cm, a nose width of 1.5 cm, a nose radius of 0.75 cm, and an elbow length of 60 cm. The standard section model is generated by using the "sweep" function according to the set parameters, and the V-type waterstop and D-type waterstop are processed at the intersection. The excess copper nose is cut off using the hollow stretched shape of the nose width and nose radius, and the hollow stretched body is created using the single-layer width and leg parameters of the waterstop structure. The columns at the intersection of the V-type waterstop and the D-type waterstop are cut off, thereby generating a three-dimensional model of the full parameters of the (V, D) common two-way elbow section and three-way elbow section.

[0040] Step S2, obtaining characteristic parameters through a preset strategy, wherein the characteristic parameters include the axis of the dam to be built, the toe plate control point, the panel joint, the wave-breaking wall structure and the joint parameters.

[0041] In this embodiment, the specific method of obtaining the dam axis is that the designers and surveyors conduct in-depth on-site exploration, and select the dam axis after comparing the topographic and geological conditions of the project area. This method can use the polyline picking function of the 3D software Civil3D to pick the dam axis.

[0042] In this embodiment, the selection of the toe plate control point needs to comprehensively consider factors such as topographic and geological conditions, smooth route, construction convenience, excavation volume, and layout of surrounding buildings to determine the toe plate control point.

[0043] In this embodiment, the characteristic parameters of the panel joints mainly include the spacing between the tensile vertical joints of the panel and the compressive vertical joints of the panel. The selection is mainly determined by considering the topographic and geological characteristics of the dam site, the magnitude of the constraint force at the bottom of the panel caused by temperature fluctuations, the uneven settlement of the dam body, and construction conditions. Usually, the panel close to the shore is a tensile stress concentration area. In order to improve the stress distribution state of the panel, the vertical joints of the panel should be divided into different spacings according to the tension zone and the compression zone, and the spacing of the joints in the tension zone is smaller than that in the compression zone. For narrow river valleys, steep slopes, and projects with large annual and daily temperature fluctuations, the spacing between the joints should be appropriately reduced.

[0044] In this embodiment, the structure and joint parameters of the wave-breaking wall are obtained by inputting by the designers themselves according to engineering experience.

[0045] Step S3, based on the acquired characteristic parameters, calculate the bottom spatial position of the horizontal seam of the wave-breaking wall and the peripheral seam where the toe plate and the panel are connected, and generate the seam spatial lines of the horizontal seam of the wave-breaking wall and the peripheral seam where the toe plate and the panel are connected. The specific process includes the following steps:

[0046] Step S31, input the three-dimensional coordinates of the dam axis, connect the coordinate points into a spatial dam axis three-segment polyline DamAxis, and manually specify the direction of the dam axis three-segment polyline DamAxis, wherein the right side of the direction of the dam axis three-segment polyline DamAxis is the upstream surface of the panel rockfill dam;

[0047] Step S32, the 3D polyline DamAxis of the dam axis is horizontally offset by half of the dam crest width along the upstream direction of the panel rockfill dam, and then vertically offset downward by a value of △T to obtain a 3D polyline sew1 after the dam axis is offset. This 3D polyline sew1 can be expressed as the spatial position of the horizontal seam of the wave-breaking wall. The 3D polyline at this time is the horizontal seam of the wave-breaking wall, and the 3D polyline sew1 is marked as the horizontal seam of the wave-breaking wall; wherein △T is the difference between the elevation of the dam crest and the elevation of the bottom of the wave-breaking wall;

[0048] Step S33, input the Y point in the flat toe board design as the control point, input the three-dimensional coordinates of the toe board control point, and connect the coordinate points to form a three-dimensional spatial polyline TBLine. At this time, the three-dimensional spatial polyline TBLine is the joint spatial line of the peripheral seam where the toe board connects with the panel.

[0049] Step S4, calculate the intersection position coordinates of all joint space lines, and automatically determine the elbow type and the type of copper water stop joint at each intersection and classify and identify them; it should be noted that the joint space lines generated in step S3 are a subset of the joint space lines of the entire panel rockfill dam.

[0050] Step S41, calculate the spatial element characteristic positioning point of the wave-breaking wall structural seam. The specific calculation process is: based on the above step S32, calculate the spatial position of the wave-breaking wall and the horizontal seam of the panel, and according to the spacing of the wave-breaking wall structural seam, combined with the linear interpolation point algorithm, calculate each coordinate point on the three-dimensional polyline sew1 of the wave-breaking wall structural seam at the bottom of the horizontal seam of the panel, and put it into the set WWHorizontalJoint{Point1, Point2...PointX}, each point in this set is the common three-way insertion point of the wave-breaking wall horizontal seam and the wave-breaking wall structural seam (V, D); the insertion point is the positioning point. It should be noted that the horizontal seam of the wave-breaking wall is used to generate the standard section, so all the spatial lines need to be calculated, and the two-way elbow section or the three-way elbow section is placed at the position of the wave-breaking wall structural seam.

[0051] Step S42, calculating the spatial element feature positioning points of the panel tension joint. In this embodiment, the process of calculating the spatial element feature positioning points of the panel tension joint includes the following steps:

[0052] Step A, calculate the intersection of the upper part of the vertical seam of the panel and the horizontal seam of the wave-breaking wall; specifically, based on the three-dimensional polyline sew1 between the wave-breaking wall and the bottom of the horizontal seam of the panel, the user inputs the spacing between the compression vertical seam and the tension vertical seam of the panel, and calculates each insertion point according to step S41 and puts it into the collection

[0053] In VerticalSeam{Point1, Point2…PointX}, each point in this set is the (V, W) common tee insertion point of the horizontal seam of the wave-breaking wall and the vertical seam of the panel. The seams are divided into types according to tension vertical seams and compression vertical seams, and they are classified and marked. For example, VerticalSeam{Point1(tension seam), Point2(compression seam)…PointX}, the points in the set VerticalSeam{} are the (V, D) common tee model insertion points, which are also the final calculated intersection points.

[0054] Step B, calculate the intersection point between the lower part of the vertical seam of the panel and the peripheral seam of the toe board; specifically, the calculation process is:

[0055] Step B1, based on the starting point coordinates and the end point coordinates of the three-dimensional polyline sew1 at the bottom of the horizontal seam between the wave-breaking wall and the panel, an algorithm for finding the normal vector between two points is used to calculate the direction vector VectorL1 of the three-dimensional polyline sew1;

[0056] Step B2, calculate the plane equation of the plumb plane corresponding to each Point space point and the direction vector VectorL1 in the set VerticalSeam{}. The calculation process follows the general algorithm for calculating the plane equation using the normal vector and the space point coordinates, and uses the general algorithm for finding the intersection of a straight line and a plane to calculate each intersection point NodePoint{Inter1, Inter2...InterX} of the plumb plane and each toe control line, and in accordance with the one-to-one correspondence in the VerticalSeam{} set, and based on the classification and labeling in the VerticalSeam set, make it NodePoint{Inter1 (tension seam), Inter2 (compression seam)...InterX (tension seam)}; it should be noted that Inter1 (tension seam) is a whole, represented as a point with attributes.

[0057] Step B3, through data screening, the points classified and marked as "compression seam" in the NodePoint{} set in step B2 are screened out to form a new point set CoPPoint{Inter1(tension seam), Inter2(tension seam), ..., InterX(tension seam)}. This point set is the tee insertion points of the peripheral seam and the panel compression seam (W, F) type.

[0058] Step B4: According to the points in the NodePoint{} set, the straight line equations of each segment of the plinth control line formed by each plinth control point are respectively introduced. The straight line equations are constructed according to the two-point straight line equation algorithm. According to the general algorithm for determining whether the point is on the straight line, the plinth control lines of the points in the VerticalSeam set are verified, determined and classified, and the points that are not on any plinth control line are removed. Finally, the logical belonging set of points and control lines in the VerticalSeam set is established.

[0059] SeamRelationShip{(Inter1=Point1(tension seam)=Y1-Y2)…}. It should be noted that the Y point in the flat toe board design is used as the control point, and the Y point is the intersection point between the panel bottom plate and the toe board bottom surface. The TBPoint set {Y1, Y2, Y3…Y X}, each point in the set is the F-elbow insertion point, connect each control point in the control point set one by one, and generate the toe board control line set TBLine{Y1-Y2, Y2-Y3, Y3-Y4...Yx-1-Yx}. This set SeamRelationShip{(Inter1=Point1(tension seam)=Y1-Y2)...} is the basis for calculating the vertical turning point liquid toe board toe board control line intersection in step C. Only by determining the control line to which it belongs can it be automatically matched with the angle of the control line.

[0060] Step C, calculate the turning point of the vertical seam of the panel tension seam and the intersection of the toe board control line; specifically, the calculation process is as follows:

[0061] Step C1, according to the set SeamRelationShip{(Inter1=Point1(tension seam)=Y1-Y2), InterX=PointX(compression seam)=Yx-1-Yx)...} in step B4, classify the data after the Point mark according to tension seams and compression seams, and divide them into two sets of tension seams and compression seams, namely OpSeamRelationShip{} set and Pi SeamRelationShip{} set;

[0062] Step C2, connect each InterX and PointX pair in the panel tension vertical seam set OpSeamRelationShip{} to form a straight line set AuyLine{Line1, Line2, ...Linex}, and mark the corresponding toe board control lines.

[0063] Step C3, calculating each straight line in the straight line group in step C2 and the marked toe control line, and calculating the angle group AuxAngle{angle1, angle2...anglex} according to the angle calculation algorithm of two straight lines;

[0064] Step C4, according to the angle length LenghtL of the panel tension joint perpendicular to the toe board control line manually input by the user and the angle group AuxAngle{} of step C3, according to the values ​​of LenghtL / Sin(AuxAngle) and LenghtL / Tan(AuxAngle), calculate the Inter points of the tension joint set OpSeamRelationShip, the extension length Leb1 along the straight line group AuyLine{} and the extension length Leb2 along the corresponding toe board control line, and according to the general algorithm of straight line interpolation points, calculate the extended spatial point coordinate set YSInterSection{ExPointX……} and the indentation point spatial point coordinate set SJInterSection{IndPointX……}, each point in this YSInterSection{} set is the W-type elbow insertion point, and each point in this SJInterSection{} set is the (W, F) type tee insertion point.

[0065] Step S5, generating three-dimensional models of the copper waterstop standard section, two-way elbow section and three-way elbow section according to the preset data of copper waterstop parameters, by type and elbow form.

[0066] In this embodiment, the process of calculating the characteristic positioning points of the panel tension joint space elements includes the following steps:

[0067] Step S51, based on the standard segment parameterized contour template of step S1, the parameters of the (D, W, F) common type including the single side width, the left leg height, the right leg height, the nose height, the nose width, and the nose radius are manually input, and the parameters of the V-type water stop are the water stop width, the bottom angle, the leg height, the nose height, the nose width, the nose radius and other parameters are manually input, and the input data is as follows;

[0068] 1. W type: The width of one side is 18cm, the height of the left standing leg is 7cm, the height of the right standing leg is 7cm, the nose height is 6cm, the nose width is 1.5cm, and the nose radius is 0.75cm.

[0069] 2. Type F: The width of one side is 18cm, the height of the left standing leg is 4cm, the height of the right standing leg is 7cm, the nose height is 6cm, the nose width is 1.5cm, and the nose radius is 0.75cm.

[0070] 3. Type D: The width of one side is 18cm, the height of the left standing leg is 0cm, the height of the right standing leg is 0cm, the nose height is 6cm, the nose width is 1.5cm, and the nose radius is 0.75cm.

[0071] 4. V-type: The single-side width is 18cm, the bottom angle is 144°, the nose height is 6cm, the nose width is 1.5cm, and the nose radius is 0.75cm.

[0072] Furthermore, the length parameters of the F-type and W-type two-way elbow sections are manually input, the length of the two-way elbow is 60 cm, and the remaining parameters of the F-type and W-type two-way elbow sections are the same as the parameters set in step S41.

[0073] Furthermore, for the (V, W) common type, (V, F) common type and (V, D) common type three-way elbow sections, the elbow length is manually input as 60 cm, and the remaining parameters are the same as the parameters set above.

[0074] According to the elbow lengths of the two-way elbow section and the three-way elbow section set in advance, the spatial position coordinates of the standard section of each water stop type are calculated. The process and method of step C are the same and will not be repeated here. Finally, the F-type standard section control point set group FXPoint{(Point1, Point2), (Point3, Point4)...(PointX-1, PointX)}, the W-type standard section control point set group WXPoint{(Point1, Point2), (Point3, Point4)...(PointX-1, PointX)}, the V-type standard section set group XPoint{(Point1, Point2), (Point3, Point4)...(PointX-1, PointX)}, and the D-type standard section set group DPoint{(Point1, Point2), (Point3, Point4)...(PointX-1, PointX)} are calculated. At the same time, according to the general algorithm for finding the direction vector and distance of two coordinate points, each point family behind the above mark is marked with the direction vector and distance, forming each set in the form of {(Point1, Point2, VectorL1, Length)}.

[0075] Step S52: Based on the parameters set in step S51, classify and generate copper water stop standard sections, two-way elbows and three-way elbows at the corresponding positions of standard sections, two-way elbows and three-way elbows. Specifically, the classification generation process of step S55 includes the following steps:

[0076] Step a, generation of various standard segments: Based on the coordinate sets FXPoint{}, WXPoint{}, XPoint{} and DPoint{} of various control points determined in step S52, match the standard segment parameter template of the corresponding class, generate the standard segment three-dimensional model according to the cross-section, normal vector and distance generated by the three-dimensional entity, use the "stretch" function to generate the standard segment three-dimensional model by segment and type, and mark the copper water-stop type to which the three-dimensional model belongs.

[0077] Step b: Classify and generate three-dimensional models of the two-way elbow section and the three-way elbow section according to the parameters set in step S51 and the various intersection points calculated in step S3.

[0078] Step b-1, automatically generate and place an F-type elbow at the set TBPoint{} point position, and generate and place a W-type elbow at the set YSInterSection{} point position;

[0079] Step b-2. Automatically generate and place the (W, F) type tee elbow at the set CoPPoint{} and SJInterSection{} point positions, automatically generate and place the (V, W) common type tee elbow section at the set SJInterSection{} point position, and automatically generate and place the (V, W) common type tee elbow section at the set VerticalSeam{} point position, and automatically generate and place the (V, D) common type tee elbow section at the set WWHorizontalJoint{} point position.

[0080] Step c: Based on the panel normal vector and according to the matrix transformation algorithm, adjust the spatial directions of the two-way elbow section and the three-way elbow section, transform them into three-dimensional models of the two-way elbow section and the three-way elbow section that are the same as the panel, and classify and mark the generated three-dimensional models of the two-way elbow section and the three-way elbow section.

[0081] Step S6, based on the contour templates of various standard sections generated in step S5, the three-dimensional model of the two-way elbow section, and the three-dimensional model of the three-way elbow section, classify and count the length attributes of the contour modules of the standard sections, the number attributes of the two-way elbow sections and the three-way elbow sections, and complete the classified statistics of the number of standard sections and all elbow sections.

[0082] Step S7, stereoscopic projection, model sectioning and three-dimensional perspective processing are performed on the copper waterstop of the panel rockfill dam, and construction drawings of the copper waterstop heterosexual joints and standard sections are generated by classification.

[0083] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A three-dimensional construction method for a copper water stop structure of a face rockfill dam, characterized in that: The following steps are involved: Step S1, constructing a universal contour template of a copper water stop standard section, and constructing fully parameterized three-dimensional models corresponding to a two-way elbow section and a three-way elbow section of the copper water stop based on the universal contour template; Step S2, obtaining characteristic parameters through a preset strategy, wherein the characteristic parameters include the axis of the dam to be built, the toe plate control point, the panel joint, the wave-breaking wall structure and the joint parameters; Step S3, based on the acquired characteristic parameters, calculate the bottom spatial position of the horizontal seam of the wave-breaking wall and the peripheral seam where the toe plate and the panel meet, and generate the seam spatial line of the horizontal seam of the wave-breaking wall and the peripheral seam where the toe plate and the panel meet; Step S4, calculating the intersection position coordinates of all joint space lines, automatically determining the elbow type and the copper water stop joint type at each intersection, and classifying and marking them; Step S5, generating three-dimensional models of the copper water stop standard section, two-way elbow section and three-way elbow section according to the preset data of copper water stop parameters, by type and elbow form; Step S6, based on the contour templates of various standard sections, the three-dimensional model of the two-way elbow section, and the three-dimensional model of the three-way elbow section generated in step S5, the length attributes of the contour modules of the standard sections, the number attributes of the two-way elbow sections and the three-way elbow sections are classified and counted, and the classified statistics of the number of standard sections and all elbow sections are completed; Step S7, stereoscopic projection, model sectioning and three-dimensional perspective processing are performed on the copper waterstop of the panel rockfill dam, and construction drawings of the copper waterstop heterosexual joints and standard sections are generated by classification.

2. The three-dimensional construction method of the copper water stop structure of a face rockfill dam according to claim 1 is characterized in that: In step S1, the construction process is: Step S11, using 3D modeling software to establish a general parameterized contour template for the standard segment, and dividing the standard segment into two types of contour templates, namely (D, W, F) common type and V-type, wherein the water-stopping parameters corresponding to the contour template of the (D, W, F) common type include single-side width, left leg height, left leg height, nose height, nose width and nose radius, and the water-stopping parameters corresponding to the contour template of the V-type include water-stopping width, bottom angle, leg height, nose height, nose width and nose radius, and the insertion point of the (D, W, F) common type and the V-type copper water-stop is the intersection of the center line of the copper nose and the water-stop bottom plate; Step S12. Based on the various water-stop parameters and the universal contour template in step S11, a universal fully parametric three-dimensional model of the (W, F) common type of the two-way elbow section and a universal fully parametric three-dimensional model of the (W, F) common type of the three-way elbow section are established; at the same time, based on the universal contour template generated in step S11, the (D, W, F) common type and V-type standard section parametric contour templates are generated respectively, and the generation steps of the fully parametric (W, F) common type of the two-way elbow section and the three-way elbow section are repeated until universal full-parameter models of the (V, W) common type, the (V, F) common type and the (V, D) common type are generated.

3. The three-dimensional construction method of the copper water stop structure of a face rockfill dam according to claim 2 is characterized in that: In step S12, the process of establishing a fully parameterized universal three-dimensional model of a two-way elbow section is as follows: in addition to the parameters contained in the universal contour template of the (D, W, F) common standard section parameterization in step S11, this two-way elbow section also includes elbow length and elbow angle parameters. The generation process of the contour template corresponding to the two-way elbow section is as follows: first, according to the contour template of the (D, W, F) common standard section parameterization in step S11 and the elbow length increased by 2m, two standard sections are generated along the guide line direction based on the parameters of the contour template corresponding to the two-way elbow section, and then the excess parts on both sides are cut off using the elbow angle bisector as the dividing line for Boolean operation to form an overall three-dimensional model, thereby completing the fully parameterized three-dimensional model of the universal two-way elbow section of the (W, F) common type, wherein the elbow insertion point is the intersection of the guide lines.

4. The three-dimensional construction method of the copper water stop structure of a face rockfill dam according to claim 2 is characterized in that: In step S12, the process of establishing a fully parameterized (W, F) common type universal three-dimensional model of the tee elbow section is: setting the initial position and the end position. In addition to the (D, W, F) common type contour template parameters in step S11, this tee elbow section also includes a guide line angle and elbow length. A T-shaped guide line is constructed according to the elbow length and the guide line angle. According to the T-shaped conductor, a model of the intersection of copper water stop columns and copper noses is generated, and then the excess parts of the intersection columns and copper noses are cut off. Finally, a fully parameterized three-dimensional model of the (W, F) common type universal tee elbow section is generated, wherein the intersection of the T-shaped guide lines is the insertion point of the tee elbow.

5. The three-dimensional construction method of the copper water stop structure of a face rockfill dam according to claim 1 is characterized in that: In step S3, the process includes the following steps: Step S31, input the three-dimensional coordinates of the dam axis, connect the coordinate points to form a three-dimensional polyline of the dam axis, and set the direction of the three-dimensional polyline of the dam axis, wherein the right side of the set direction is the upstream surface of the panel rockfill dam; Step S32, horizontally offset the 3D polyline of the dam axis along the upstream direction of the panel rockfill dam by half of the dam crest width, and then vertically offset it downward by a value of △T to obtain the 3D polyline after the dam axis is offset. The 3D polyline at this time is the horizontal seam of the wave-breaking wall, and the 3D polyline is marked; wherein △T is the difference between the dam crest elevation and the wave-breaking wall bottom elevation; Step S33, input the Y point in the flat toe board design as the control point, input the three-dimensional coordinates of the toe board control point, and connect the coordinate points into a three-dimensional spatial polyline. The three-dimensional spatial polyline at this time is the joint spatial line of the peripheral seam where the toe board connects with the panel.

6. The three-dimensional construction method of the copper water stop structure of a face rockfill dam according to claim 1 is characterized in that: In step S4, the process includes: Calculate the characteristic positioning points of the space elements of the wave-breaking wall structure joint; Calculate the characteristic positioning points of the spatial elements of the panel tension joint.

7. The three-dimensional construction method of the copper water stop structure of a face rockfill dam according to claim 6 is characterized in that: The calculation process of the panel tension joint space element feature positioning point in step S4 is as follows: Step A, calculate the intersection point between the upper part of the vertical seam of the panel and the horizontal seam of the wave-breaking wall; Step B, calculate the intersection point between the lower part of the vertical seam of the panel and the peripheral seam of the toe board; Step C, calculate the turning point of the vertical joint of the panel tension joint and the intersection of the toe board control line.

8. The three-dimensional construction method of the copper water stop structure of a face rockfill dam according to claim 7 is characterized in that: The calculation process of step B is: Step B1, calculating the direction vector of the bottom line of the horizontal seam of the panel based on the starting point coordinates and the end point coordinates of the bottom line of the horizontal seam between the wave-breaking wall and the panel; Step B2, calculate the plane equation of the plumb plane, and calculate the intersection points of the plumb plane and each toe control line, and based on the classification and labeling in the set VerticalSeam, make it a set NodePoint{Inter1 (tension seam), Inter2 (compression seam), ..., InterX (tension seam)}; Step B3, through data screening, the points classified and marked as compression seams in the set NodePoint{} in step B2 are screened out to form a new point set CoPPoint{Inter1(compression seam), Inter2(compression seam), ..., InterX(compression seam)}; Step B4, filter the points in the set NodePoint{} and the toe board control lines they belong to, and according to the points in the set NodePoint{}, respectively substitute the straight line equations of each segment of the toe board control line formed by each toe board control point, and finally establish the set VerticalSeam midpoint and control line logical attribution set SeamRelationShip{(Inter1=Point1(tension seam)=Y1-Y2)…}.

9. The three-dimensional construction method of the copper water stop structure of a concrete face rockfill dam according to claim 8, characterized in that: The calculation process of step C is: Step C1, according to the set SeamRelationShip{(Inter1=Point1(Zhangxingseam)=Y1-Y2) in step B4, InterX = PointX (compression seam) = Yx-1-Yx) ...}, classify the data after Point according to tension seam and compression seam, and divide them into two sets of tension seam and compression seam, namely OpSeamRelationShip{} set and PiSeamRelationShip{} set; Step C2, connect each InterX and PointX pair in the panel tension vertical seam set OpSeamRelationShip{} to form a straight line set AuyLine{Line1, Line2, ..., Linex}, and mark the corresponding toe board control line; Step C3, calculating each straight line in the straight line group in step C2 and the marked toe control line, and calculating the angle group AuxAngle{angle1, angle2...anglex} according to the angle calculation algorithm of two straight lines; Step C4, according to the angle length LenghtL of the panel tension joint perpendicular to the toe board control line manually input by the user and the angle group AuxAngle{} of step C3, according to the values ​​of LenghtL / Sin(AuxAngle) and LenghtL / Tan(AuxAngle), calculate the Inter points of the tension joint set OpSeamRelationShip, the extension length Leb1 along the straight line group AuyLine{} and the extension length Leb2 along the toe board control line, calculate the extended spatial point coordinate set YSInterSection{ExPointX…} and the indentation point spatial point coordinate set SJInterSection{IndPointX…}, each point in this set YSInterSection{} is the insertion point of the W-type elbow, and each point in this set SJInterSection{} is the insertion point of the (W, F) type tee elbow section.

10. The three-dimensional construction method of the copper water stop structure of a concrete face rockfill dam according to claim 2, characterized in that: In step S5, the generation process includes the following steps: Step S51, input the parameters of the parameterized profile template of the standard section; input the length parameters of the F-type and W-type two-way elbow sections; input the elbow length parameters of the (V, W) common type, (V, F) common type and (V, D) common type three-way elbow sections; calculate the spatial position coordinates of the standard section of each water stop type according to the set elbow lengths of the two-way elbow and the three-way elbow; Step S52, according to the parameters set in step S51, classify and generate copper water-stop standard sections, two-way elbow sections and three-way elbow sections at corresponding positions of the standard sections, two-way elbow sections and three-way elbow sections.

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