CN108334689B - Method for automatically realizing longitudinal design of pipeline - Google Patents
Method for automatically realizing longitudinal design of pipeline Download PDFInfo
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- CN108334689B CN108334689B CN201810083547.0A CN201810083547A CN108334689B CN 108334689 B CN108334689 B CN 108334689B CN 201810083547 A CN201810083547 A CN 201810083547A CN 108334689 B CN108334689 B CN 108334689B
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Abstract
The invention provides a method for automatically realizing longitudinal design of a pipeline, which ensures that the design flows of all lines of the whole project are consistent, the use standards are consistent and the parameters are consistent through automatic design, so that the design result can be traced and evaluated; the automatic slope point changing adjusting means of the software is effective, no blind point is checked, and the error is zero tolerance; based on the parameterized automatic design, the design becomes more flexible; the designer is liberated from the tedious operation with lower technical content, and time intelligence is put into the overall design and detail innovation work.
Description
Technical Field
The invention relates to the technical field of pipeline design, in particular to a method for automatically realizing longitudinal design of a pipeline.
Background
The longitudinal design of the pipeline is the process of laying the variable slope points along the set plane according to the requirements of the process, construction and safety of the pipeline in combination with the terrain and geological conditions along the way.
The prior art is realized by means of computer software, and the current software is found to stay in a computer aided drafting stage by reading a user manual of the existing software and actually applying the software, namely: data required for drawing is locally and subjectively input in a design process for drawing.
The disadvantages of the existing longitudinal design technology are mainly:
1. the whole process is manually intervened, and the workload is very large.
In the longitudinal design process, each slope changing point is manually set. In the terrain-broken area, at least 30 slope-changing points are arranged per kilometer. Through software local calculation, whether the grade change points are qualified or not can be determined one by one, and manual adjustment is needed according to experience if the grade change points are unqualified. More complicated is that adjusting a qualified grade change point may cause other points to be unqualified, so that the same grade change point is adjusted repeatedly.
2. The design scheme is unstable and random
The manual setting of each grade change point is mainly based on experience, different people on the same line have different results, and the optimal result is only one. The opinions and viewpoints of all parties are not uniform in the process of proofreading, examining and accepting, and the progress and the efficiency are hindered.
3. Relying on manual review, the reliability is poor
Although the software can display part of the result parameters, the determination of whether the result parameters are qualified is finally completed by manually turning over the data, manually identifying and manually inquiring and analyzing. Because of manual review, the occurrence of the first and second errors is inevitable, and the reliability of the scheme is poor.
4. Absent data-driven, the design cannot be updated.
The existing scheme attaches importance to the final result and lacks management on design input and design process data. Once the design input is locally changed, especially the pipe diameter and the construction condition are changed, the prior art lacks automatic countermeasures, and the original scheme is completely abandoned.
Disclosure of Invention
In order to solve the technical problems, the invention adopts a technical scheme that: the method for automatically realizing the longitudinal design of the pipeline comprises the management of designed input data and process data and the design of an automatic longitudinal section, and is characterized by comprising the following steps of:
management of designed input data and process data: establishing a table data structure scheme in a computer, wherein the table data structure scheme comprises a point event, a line event, a vertical section, a corresponding table physical structure, a point event physical structure and a vertical section physical structure; the setup completion facilitates computation and access.
Automatic vertical section design specifically includes:
and (3) data driving: automatically designing and updating the minimum buried depth of the pipeline and the pipeline design line in sequence to form a primary pipeline wiring diagram;
optimal point placement: the method comprises the steps of firstly, carrying out minimum burial depth design, descending to the underground according to the minimum burial depth to form a pipe top boundary of a pipeline, then, carrying out rarefaction from a pipe top boundary point to generate an initial pipeline line, finishing initial setting of a variable slope point position, and forming a pipeline design line;
optimizing and adjusting: calculating each point of the initial pipeline line, calculating and judging whether each variable slope point is qualified or not, adjusting the advantages of the unqualified points, and performing iteration for multiple times until the unqualified points are completely eliminated, wherein acute angle removal and short circuit removal are performed in the highest priority.
Preferably, the determination of the failure point has 3 types, and the specific processing mode includes that the failure point has insufficient burial depth, a point causing short circuit, and an acute angle point:
and the index with insufficient burial depth and unreasonable burial depth is measured by an overexcavation value which is a negative number and the grade change point is unqualified:
the overexcavation value is (design elevation of pipe top-ground elevation) -standard burial depth;
the index of insufficient pipe short circuit is measured by straight pipe length between elbows, the straight pipe length is negative, and the slope point at the two ends of the short circuit is unqualified:
the length of the straight pipe is equal to the distance of a variable slope point, the tangent length of an elbow, the length of the straight pipe with the straight pipe, and the length of the shortest straight pipe between the elbows;
and the index of the acute angle of the elbow is measured by adopting the elbow corner, and the slope-changing point is unqualified when the elbow corner is smaller than 90 degrees.
Preferably, the design rule of the minimum burial depth data includes:
the line section A is subdivided into a plurality of sections, and the attribute uniqueness of each section of the minimum buried depth table is met;
b, obtaining a line attribute value of the region grade and the earth surface coverage by each section: coverage type, regional level;
and C, inquiring a 'standard burial depth' table by using the coverage type and the region grade as conditions to obtain the minimum burial depth.
Preferably, the acute angle removing mode comprises that the acute angle is in a convex position and a concave position, when the acute angle is in the convex position, the acute angle is replaced by two hot bends, and when the acute angle is in the concave position, the slope changing points at two ends are moved downwards.
Preferably, the short circuit removing mode comprises the steps of short circuit at a protruding position, short circuit at a concave position and short circuit at a slope position; when the short circuit is in the protruding position, peak clipping is performed; when the short circuit is in the concave position, the two ends extend to form slope changing points; when the short joint is in the side slope position, the slope changing point is moved along the top boundary of the pipe.
Different from the prior art, the invention has the beneficial effects that:
1. the invention adopts optimized point distribution and adjustment, solves the problem of whole-process manual intervention and reduces the workload.
2. The invention adopts a unified optimal algorithm to obtain an optimal scheme under given conditions, and solves the problem of unstable scheme.
3. The invention adopts correct indexes for measuring unqualified indexes and automatic software auditing, and solves the problems of dependence on manual auditing and poor reliability
4. The invention adopts the event table to effectively manage the input, the output and the intermediate result of the design, and solves the problem that the design scheme can not be updated through automatic design.
Drawings
Fig. 1 is a schematic diagram of minimum buried depth table generation according to an embodiment of the present invention.
Fig. 2 is a simplified schematic diagram of the top line of the panel tube, namely an optimized layout.
FIG. 3 is a simplified diagram of vertex attribute execution according to the present invention.
Fig. 4 is a general flow chart of the optimal adjustment of the embodiment of the present invention.
FIG. 5 is a schematic diagram of the inventive de-shorting process.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a method for automatically realizing longitudinal design of a pipeline, which comprises the management of designed input data and process data and the design of an automatic longitudinal section, and specifically comprises the following steps:
management of designed input data and process data: establishing a table data structure scheme in a computer, wherein the table data structure scheme comprises a point event, a line event, a vertical section, a corresponding table physical structure, a point event physical structure and a vertical section physical structure; the setup completion facilitates computation and access.
Automatic vertical section design specifically includes:
and (3) data driving: automatically designing and updating the minimum buried depth of the pipeline and the pipeline design line in sequence to form a primary pipeline wiring diagram;
optimal point placement: the minimum burial depth design is firstly carried out, and the pipe top boundary of the pipeline is formed by descending to the underground according to the minimum burial depth, as shown in figure 1. Then, thinning is conducted from the pipe top defining point, an initial pipeline line is generated, initial setting of the position of the variable slope point is completed, and a pipeline design line is formed; and (3) simplifying the preliminarily generated pipe top boundary to complete optimal point layout, wherein as shown in fig. 2, the upper curve in the diagram is the generated pipe top boundary and becomes the original pipe top boundary, firstly, the simplified pipe top line is assumed to be a line segment AB, a maximum overbreak point C is found on the original pipe top line, CD is excavation depth, whether the value of the CD exceeds a human-contained value or not is checked, and if the value does not exceed a tolerance value, the original pipe top lines from A to B can be simplified into the line segment AB. Otherwise, taking C as the vertex of the simplified pipe top line, dividing the original pipe top line into two lines A to B and B to C, and performing recursive simplification respectively, wherein the vertex attribute in the graph is used for indicating whether each original variable slope point is a midline pile and can move towards the underground, and the specific judgment standard and the judgment method are shown in FIG. 3.
Optimizing and adjusting: by carrying out accounting on each point of the initial pipeline, calculating and judging whether each variable slope point is qualified or not, carrying out advantage adjustment on unqualified points, and carrying out iteration for multiple times until unqualified points are completely eliminated, wherein acute angle removal and short circuit removal are carried out at the highest priority, as shown in fig. 4.
Further, the determination of the unqualified points includes 3 types, points with insufficient buried depth, points causing short circuit, and sharp-angle points, and the specific processing method includes:
and the index with insufficient burial depth and unreasonable burial depth is measured by an overexcavation value which is a negative number and the grade change point is unqualified:
the overexcavation value is (design elevation of pipe top-ground elevation) -standard burial depth;
the index of insufficient pipe short circuit is measured by straight pipe length between elbows, the straight pipe length is negative, and the slope point at the two ends of the short circuit is unqualified:
the length of the straight pipe is equal to the distance of a variable slope point, the tangent length of an elbow, the length of the straight pipe with the straight pipe, and the length of the shortest straight pipe between the elbows;
and the index of the acute angle of the elbow is measured by adopting the elbow corner, and the slope-changing point is unqualified when the elbow corner is smaller than 90 degrees.
Further, the design rule of the minimum burial depth data includes:
the line section A is subdivided into a plurality of sections, and the attribute uniqueness of each section of the minimum buried depth table is met;
b, obtaining a line attribute value of the region grade and the earth surface coverage by each section: coverage type, regional level;
and C, inquiring a 'standard burial depth' table by using the coverage type and the region grade as conditions to obtain the minimum burial depth.
Further, the acute angle removing mode comprises that the acute angle is in a convex position and a concave position, when the acute angle is in the convex position, the acute angle is replaced by two hot bends, and when the acute angle is in the concave position, the slope changing points at two ends are moved downwards.
The short circuit removing mode comprises the steps of short circuit removing when the short circuit is in a protruding position, short circuit removing when the short circuit is in a concave position and short circuit removing when the short circuit is in a side slope position; when the short circuit is in the protruding position, peak clipping is performed; when the short circuit is in the concave position, the two ends extend to form slope changing points; when the short circuit is at the position of the side slope, the slope changing point is moved along the top boundary of the pipe, the specific flow is shown in figure 5,
peak clipping: in the figure, 1-2-3-4 is a slope change point before adjustment, and 2-3 is a short circuit. Repeated trials of parallel lines of 2-3 resulted in 5-6 to render 5-6 non-shorted. Then the connection sequence of the variable slope points is adjusted to 1-5-6-4; if 6-4 is short circuit, deleting 6, and adjusting the connection sequence of the variable slope points to 1-5-4; if the 1-5 is short circuit, the deletion 5 is carried out, and the connection sequence of the variable slope points is adjusted to be 1-6-4; if 6-4 and 1-5 are both short circuit deletes 5 and 6, the order of the slope changing point connection is adjusted to 1-4.
Two-stage extension: in the figure, 1-2-3-4 is a slope changing point before adjustment, and 2-3 is a short circuit; extending 2 to 5, 3 to 6 for equal lengths makes 5-6 unterminated, and then the order of the connection at the change ramp point is adjusted to 1-5-6-4.
Moving along the top boundary of the pipe: in the figure, 1-2-3-4 is a slope change point before adjustment, and 2-3 is a short circuit. Moving 3 along 3-4 to 5 makes 2-5 non-terminated, at which time the ramp point connection sequence is adjusted to 1-2-5-4. If 5-4 is short circuit, 5 is deleted, and then the connection sequence of the variable slope points is adjusted to 1-2-4.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A method for automatically realizing longitudinal design of a pipeline comprises the management of designed input data and process data and the design of an automatic longitudinal section, and is characterized by comprising the following steps:
management of designed input data and process data: establishing a table data structure scheme in a computer, wherein the table data structure scheme comprises a point event, a line event, a vertical section, a corresponding table physical structure, a point event physical structure and a vertical section physical structure; the establishment is completed to facilitate operation and access;
automatic vertical section design specifically includes:
and (3) data driving: automatically designing and updating the minimum buried depth of the pipeline and the pipeline design line in sequence to form a primary pipeline wiring diagram;
optimal point placement: the method comprises the steps of firstly, carrying out minimum burial depth design, descending to the underground according to the minimum burial depth to form a pipe top boundary of a pipeline, then, carrying out rarefaction from a pipe top boundary point to generate an initial pipeline line, finishing initial setting of a variable slope point position, and forming a pipeline design line;
optimizing and adjusting: calculating each point of the initial pipeline line, calculating and judging whether each variable slope point is qualified or not, adjusting the advantages of unqualified points, and performing multiple iterations until the unqualified points are completely eliminated, wherein acute angle removal and short circuit removal are performed at the top;
the determination of the unqualified points comprises 3 types, points with insufficient buried depth, points causing short circuit and sharp-angle points, and the specific processing mode comprises the following steps:
and the index with insufficient burial depth and unreasonable burial depth is measured by an overexcavation value which is a negative number and the grade change point is unqualified:
the overexcavation value is (design elevation of pipe top-ground elevation) -standard burial depth;
the index of insufficient pipe short circuit is measured by straight pipe length between elbows, the straight pipe length is negative, and the slope point at the two ends of the short circuit is unqualified:
the length of the straight pipe is equal to the distance of a variable slope point, the tangent length of an elbow, the length of the straight pipe with the straight pipe, and the length of the shortest straight pipe between the elbows;
the index of the acute angle of the elbow is measured by adopting the elbow corner, and the slope-changing point is unqualified when the elbow corner is smaller than 90 degrees;
the rotation angle is pi-arccos ((intake direction unit vector) · (outlet direction unit vector)).
2. The method for automatically implementing a longitudinal design of a pipeline according to claim 1, wherein: the design principle of the minimum burial depth data comprises the following steps:
the line section A is subdivided into a plurality of sections, and the attribute uniqueness of each section of the minimum buried depth table is met;
b, obtaining a line attribute value of the region grade and the earth surface coverage by each section: coverage type, regional level;
and C, inquiring a 'standard burial depth' table by using the coverage type and the region grade as conditions to obtain the minimum burial depth.
3. The method for automatically implementing a longitudinal design of a pipeline according to claim 1, wherein: the acute angle removing mode comprises two modes of removing the acute angle at a convex position and a concave position, when the acute angle is at the convex position, the acute angle is replaced by two hot bends, and when the acute angle is at the concave position, the slope changing points at two ends are moved downwards.
4. The method for automatically implementing a longitudinal design of a pipeline according to claim 1, wherein: the short circuit removing mode comprises the steps of short circuit removing when the short circuit is in a protruding position, short circuit removing when the short circuit is in a concave position and short circuit removing when the short circuit is in a side slope position; when the short circuit is in the protruding position, peak clipping is performed; when the short circuit is in the concave position, the two ends extend to form slope changing points; when the short joint is in the side slope position, the slope changing point is moved along the top boundary of the pipe.
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