A 3D Simulation Design Method of Interchange Based on Space Matching Technology
A technology of interchange and 3D simulation, applied in computing, special data processing applications, instruments, etc., can solve the problem of large changes in the position relationship of ramps, and achieve the effect of ensuring design requirements
Active Publication Date: 2016-09-28
COMM DESIGN INST CO LTD OF JIANGXI PROV
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Problems solved by technology
Due to the linear criss-crossing of the interchange, the positional relationship of each ramp varies greatly. There is no one that can directly generate a variety of 3D interchange model schemes that can be selected through the simplest hand-drawn design sketch line position, and carry out 3D simulation design and optimal design technology
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[0019] A three-dimensional simulation design method for interchanges based on space matching technology, comprising the following steps:
[0020] Step 1) Obtain the main line data of the interchange and determine the type of interchange
[0021] There are generally more than two main line positions. In this step, it is assumed that the main line plane position and longitudinal curve are constant and fixed, while the ramp’s plane position and longitudinal line position are variables.
[0022] Step 1-1) Obtain the plane data information of the main line, and obtain the coordinates of the center line of the main line plane within the specified range on the topographic map that needs to be designed for the interchange, take a point every 10-20 meters, and convert it into pile-by-pile coordinate data storage . This data information can also be extracted directly from the design data.
[0023] Step 1-2) obtain the main line longitudinal section data information, on the topographic...
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The invention relates to a three-dimensional simulation design method of an interchange based on space matching technology, which comprises the following steps: 1) obtaining the data of the main line of the interchange; The spatial connection relationship between the ramp and the main line; 4) The initial position of the ramp plane is fitted to a smooth curve; 5) The coordinates of the ramp are matched on the plane; 6) The coordinates of the ramp are matched in space; 7) The three-dimensional entity of the interchange is formed 8) Establishing the 3D terrain environment of the interchange; 9) Dynamic simulation of the 3D entity of the interchange; 10) Generating the drawings and engineering quantities of the interchange; 11) Searching for the best spatial matching scheme. This method can automatically complete the line shape fitting of the interchange, automatically complete the layout of the interconnection line, and use the space matching technology to obtain a variety of interchange design schemes under the same interconnection wiring mode, and carry out dynamic simulation design in the three-dimensional mode, and obtain The best design solution.
Description
technical field [0001] The invention relates to a design method for line selection of an interchange, in particular to a three-dimensional simulation design method for an interchange based on space matching technology. Background technique [0002] Today, with the rapid development of highway construction, the road network is becoming more and more developed, and the forms of interchanges are becoming more and more complex. The simple single-horn interchange in the past can no longer meet the needs of traffic, and large-scale hub interchanges are becoming more and more common in the design. The 3D modeling and simulation design of large-scale hub interconnection is very difficult, especially in the preliminary plan, there are many undetermined factors, and it is impossible to establish a large-scale interconnection 3D model with accurate coordinates. [0003] In addition, in the bidding scheme design of interchanges, designers usually design in two dimensions. Even after com...
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IPC IPC(8): G06F17/50
Inventor 陈国张小明张伯根陈园朱海涛
Owner COMM DESIGN INST CO LTD OF JIANGXI PROV