Three-dimensional guiding line selection method for road in permafrost region

A technology of three-dimensional and guiding lines of highways, applied in the directions of roads, roads, geographic information databases, etc., can solve the problems of easy precocity in the early stage and slow evolution in the later stage, and achieve the effect of improving quality, reducing design workload and saving investment.

Active Publication Date: 2016-08-24
CCCC FIRST HIGHWAY CONSULTANTS
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Problems solved by technology

However, the current genetic algorithm has the disadvantages of premature evolution in the early stage and slow evolution in the later stage, and in the face of the complex geographical and geological environment in permafrost regions, the existing technology does not provide a road alignment that can take into account various requirements. Method of choosing

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  • Three-dimensional guiding line selection method for road in permafrost region
  • Three-dimensional guiding line selection method for road in permafrost region
  • Three-dimensional guiding line selection method for road in permafrost region

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Embodiment Construction

[0070] The present invention will be described in detail below in combination with specific embodiments.

[0071] The invention provides a GIS (Geographic Information System)-based intelligent selection method for the three-dimensional guiding line of the highway in the permafrost area, combined with GIS technology, comprehensively considering the influencing factors of road diseases in the permafrost area, and adopting an improved genetic algorithm to optimize Three-dimensional guiding line of highway in permafrost area. Specifically, it is realized by the following steps:

[0072] Step 1: Screen the characteristic attributes of geological hazards in permafrost areas on the GIS platform, establish a risk model for the distribution of permafrost hazards, and calculate the risk in units with a unit length of 3 kilometers;

[0073] Step 2: Summarize and organize the geological disaster attribute information obtained in Step 1, connect to the Oracle database through ArcSDE, and ...

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Abstract

The invention relates to a three-dimensional guiding line selection method for a road in a permafrost region and aims to solve the problem that for the complicated geographical and geological environment of the permafrost region, multi-aspect requirements cannot be met due to the fact that early evolution of an existing genetic algorithm is prone to prematurity and late evolution speed is low. The method comprises steps as follows: geological disaster feature attributes of the permafrost region are screened on a GIS (geographic information system) platform, and a risk factor model is established; the geological disaster attribute information is converged, an Oracle database is connected through ArcSDE, and a geographical information database is established; a road route plane model is established, line optimization is performed with an improved genetic algorithm, and a final guiding line design scheme for the road in the permafrost region is obtained through repeated iterative optimization with the total risk factor not higher than 4.00 as a constraint condition. With the adoption of the method, the problem about the road guiding line selection in the complicated geographical environment of the permafrost region is solved, the design workload of a designer is reduced through comprehensive risk factor evaluation, and meanwhile, the design quality is improved.

Description

technical field [0001] The invention belongs to the technical field of road traffic construction, and in particular relates to a method for selecting a three-dimensional guiding line of a highway in a permafrost region. Background technique [0002] The location selection of highways in the permafrost region of the Qinghai-Tibet Plateau is a systematic project, and the impact of thick-layer underground ice, thermally thawed lakes and ponds, permafrost swamps and other diseases on roads must be fully considered during the design process. Part of the influencing factors restrict each other, how to deal with the requirements of different fields, and get the best highway route design scheme is an important topic for designers today. The current method used in general low-altitude areas is based on the experience and trial-and-error method of designers’ work experience and expert deliberation, which is not only time-consuming, but also easy to miss excellent solutions. It is mor...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C1/00G06F17/30
CPCE01C1/002G06F16/29
Inventor 汪双杰张驰杨坤陈建兵金龙邵广军闫晓敏熊丽
Owner CCCC FIRST HIGHWAY CONSULTANTS
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