Research On Personnel Burying Model For Earthquakes Emergency

China is one of the countries suffering the most serious earthquake losses in the world.The primary work after the earthquake is to search and rescue the people buried in the disaster areas.However,after the occurrence of a destructive earthquake,communication and traffic interruption often occur in the disaster areas,so that the information of the disaster situation is delayed,and the distribution and quantity of buried personnel in the disaster areas cannot be timely and accurately understood.Therefore,it is very important to establish a scientific and effective evaluation system of buried personnel for emergency command and decision-making.It is one of the key problems to be solved in earthquake emergency response to quickly obtain accurate spatial distribution of buried personnel by using the existing basic geographic data and evaluation model,so as to provide decision-making direction and guidance for emergency rescue and minimize casualties.Due to the different direction of seismic energy release,rupture and regional population,geographical environment,economic situation are very different,the existing personnel embedding evaluation model is difficult to provide scientific and reasonable evaluation results in the post-earthquake emergency work,unable to provide scientific and effective technical support for the earthquake emergency command and emergency rescue,and affecting the efficiency of the post-earthquake emergency rescue.Therefore,it is very important to improve the accuracy of the personnel embedding evaluation results in the earthquake emergency work.The main limitations of the current research methods are as follows: most of the research methods are based on the specific building collapse situation in the study area,and the acquisition cost of building data is high,so it is difficult to be applied in practice;Most of them are based on the assessment of the total burying amount after the earthquake,and lack of the burying spatial distribution assessment method under the fine spatial scale.Moreover,the accuracy of the personnel burying pressure assessment results for the emergency response in a short time after the earthquake is not enough to provide support for emergency decision-making.Buried personnel evaluation model based on km grid population than from other research methods,a data acquisition can reflect pressure easy and buried the advantage of the spatial distribution,but as a result of direct use of the inherent parameters to evaluate the result has the problem of big error,low applicability,in order to solve the current pressure after the earthquake the plight of the buried personnel assessment,mainly the following work:(1)the buried personnel evaluation model based on the population km grid optimization,based on a high-precision km grid data of regional seismic personnel bury evaluation model,and according to the actual domestic in recent years,with regional characteristics of the typical earthquake examples,by the regional environment and population distribution characteristics was carried out on the model parameters,such as fixed and localization improvement.The parameters in the evaluation model can be obtained automatically according to the regional characteristics,thus improving the accuracy of the evaluation results,and providing an optimization idea for using this method to evaluate the buried earthquake cases in the future.(2)selecting a greater influence on the secondary disaster of earthquake cases,secondary disaster risk evaluation for the disaster area,river distance,fault distance,slope type,slope,elevation,formation lithology and seismic intensity 7 factors,according to the characteristics of secondary disasters in the disaster zone distribution will affect the degree of each factor according to the seismic landslide classification of various impact factors to classify the heavy sampling and processing,using the analytic hierarchy process(AHP)to establish the corresponding relationship between matrix and calculate the contribution of each influence factor for the evaluation system of proportion,and through the consistency check to ensure the results after rationality determine the corresponding factor weight,will be treated as a factor of the layer after superposition of empowerment,the secondary disaster risk personality network was constructed and divided into extremely high risk area,high risk area,medium risk area,low risk area and very low risk area.(3)according to the original model ignored except houses other factors may cause personnel to bury the problem,on the basis of the secondary disaster danger division to estimate,on the basis of the improvement of the original parameters of the model,considering the seismic geological disaster risk,increase the amount of secondary disasters pressure buried parameter,the original model to further optimization,the evaluation result is more consistent with actual situation,make its applicability and accuracy has been further improved,the improved evaluation model in the personnel to be able to bury the space distribution for quick sentence research,and to better serve future earthquake emergency command and emergency rescue,the greatest degree to ensure the safety of people's life and property.