Urban road trafficability evaluation method considering building collapse due to earthquake

A technology for road traffic and evaluation methods, which is applied in data processing applications, forecasting, resources, etc., and can solve problems such as not fully considering the impact of road networks

Inactive Publication Date: 2018-01-16
UNIV OF SCI & TECH BEIJING
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  • Abstract
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Problems solved by technology

[0005] However, domestic and foreign studies have not fully considered the impact of building collapse on the road network.

Method used

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  • Urban road trafficability evaluation method considering building collapse due to earthquake
  • Urban road trafficability evaluation method considering building collapse due to earthquake
  • Urban road trafficability evaluation method considering building collapse due to earthquake

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Embodiment Construction

[0036] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0037] The invention provides a method for evaluating the trafficability of urban roads considering building earthquake collapse, figure 1 Flowchart of the urban road trafficability evaluation method considering the earthquake collapse of buildings. Such as figure 1 As shown, the implementation of this method mainly includes these parts: establishment of refined road network and building models, refined earthquake damage simulation of regional building groups, calculation of the impact range of building collapse, analysis of the impact of collapsed buildings on road traffic, optimal path calculation. The specific implementation steps are as follows:

[0038] (1) Establishment of refined road network model. According to the basic data of roads and bui...

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Abstract

The invention provides an urban road trafficability evaluation method considering building collapse due to earthquake, and belongs to the technical field of civil engineering disaster prevention and mitigation. The urban road trafficability evaluation method considering building collapse due to earthquake includes the steps: establishing a refined road network model on a GIS platform; according toa multi-layer shear model, performing time-procedure analysis of earthquake response on regional building groups, and determining the damage and collapse situation of buildings; according to the pavement width and the distance from buildings to the road edge, calculating the influence of the damage and collapse situation of buildings on the road; and finally according to the damaged degree of theroad trafficability, and the estimated place of departure and destination, calculating the optimal path of emergency escape in earthquake and post-earthquake rescue and evacuation. The urban road trafficability evaluation method considering building collapse due to earthquake is accurate and efficient.

Description

technical field [0001] The invention relates to the technical field of disaster prevention and reduction in civil engineering, in particular to an evaluation method for urban road traffic considering building collapse in earthquakes. Background technique [0002] After the city is hit by an earthquake, the collapse of the building will block the road, which will seriously affect the efficiency of emergency rescue or evacuation after the disaster. Therefore, analyzing the impact of building collapse on the trafficability of the road network and obtaining a feasible path will play a great role in post-disaster rescue and evacuation work. [0003] Foreign scholars have done a lot of research on the connectivity of road systems, but there are relatively few studies on the post-earthquake traffic capacity of urban roads. As early as the 1970s, the United States began to study post-earthquake emergency assessment and command technology, and successfully developed the famous CATS ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06
Inventor 许镇张宗才孙韬文
Owner UNIV OF SCI & TECH BEIJING
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