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A Method for Assessing Clearance of Highway Aircraft Runway

A technology for airstrips and highways, which is applied in the fields of instruments, complex mathematical operations, and informatics.

Active Publication Date: 2020-06-09
AIR FORCE UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a method for evaluating the clearance of highway runways, which solves the problems of non-standard assessment, unclear range of obstacle restriction surfaces and error-prone assessment in the clearance assessment of highway runways.

Method used

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  • A Method for Assessing Clearance of Highway Aircraft Runway
  • A Method for Assessing Clearance of Highway Aircraft Runway
  • A Method for Assessing Clearance of Highway Aircraft Runway

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Embodiment 1

[0307] Embodiment 1: It is known that the runway length of a certain tertiary highway is 2600m, the road surface width is 40m, the east-west direction, and the average longitudinal slope is 0, and the aforementioned road runway coordinate system XOY is established. There are currently three obstacles, and the road and airstrip coordinates and obstacle heights of the obstacles are shown in Table 1.

[0308] Table 1 Obstacles in the Clearance Area of ​​Highway Runway

[0309] Numbering X(m) Y(m) Obstacle elevation h z (m)

1 2800 520 45 2 3550 650 56 3 8800 7400 360

[0310] 1. The horizontal distance from obstacle 1 to the end line of the lifting belt is:

[0311] d=2800-2600 / 2-100=1400m<1500m

[0312] And the vertical distance Y from the point to the center line of the runway 1 =520m>415m, it is preliminarily judged that this point is located between the inner transition surface and the inner water surface. Use the formula (1-3) ...

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Abstract

The invention aims at providing a clearance evaluation method for a highway aircraft runway. The method comprises the steps of firstly, establishing a three-dimensional digital model of the clearance of the highway aircraft runway; converting geographical coordinates of an obstacle p into airport coordinates; determining which clearance limit surface of the highway runway the obstacle is located on; calculating the permission height of the obstacle; judging whether or not the obstacle is super high according to a transition surface model; obtaining a clearance evaluation conclusion. The clearance evaluation method for the highway aircraft runway has the advantages that whether or not the obstacle in a clearance area of the highway runway meets clearance requirements can be accurately judged, and the accuracy of the clearance evaluation of the highway runway is improved.

Description

technical field [0001] The invention belongs to the technical field of road runways, and relates to a method for evaluating the clearance of road aircraft runways. Background technique [0002] Clearance area of ​​road runway refers to the space area defined around the road runway to limit the height of objects in order to ensure the safety of aircraft taking off, landing and go-around on the road runway; [0003] In order to ensure the safety of the aircraft taking off and landing along the take-off and landing route, there must be a good clearance condition around the airport, and the height of terrain and objects in a certain area around the airport must be restricted. This limited area is called the airport clearance area. This kind of restriction on the height of terrain and features around the airport is called airport clearance regulations (or specifications), also known as airport clearance requirements. Whether it is a permanent airport, a road runway or a heliport,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/10
CPCG16Z99/00
Inventor 邵斌史保华许巍李光元江春林厉东
Owner AIR FORCE UNIV PLA
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