The disaster is actually a mirror. Although it is cruel, it can reveal real problems, highlighting the truths that cannot be seen or ignored at all times, and creating insecurity and panic in people’s hearts.
The heavy rains that have caused such great influence twice are only separated by one year and one month. Why Beijing has repeatedly been soaked by heavy rain. Why is Beijing repeating the mistakes every year and falling twice in one place? In the rainy season, going to Beijing to "see the sea" has become a laughing stock for people after dinner. A city has repeatedly experienced urban guilt. Even if the emergency plan for flood prevention and flood prevention is started, it will not help. After the heavy rain, the city is still in a messy state and traffic is paralyzed. People’s lives and property are seriously damaged. It may take time to discuss the deeper reasons in the city, but at the very least, the city's emergency plan must be played first. At the very least, the facts always give us cold water: the emergency management of urban security cannot catch up with the changes of the disaster. On the agenda.
Nowadays, with the rapid development of the city, various natural and human factors are intertwined. Judging from the impact of the above two torrential rains, it has been more than natural causes that violent storms have evolved into natural disasters. Human factors have played a major role in them and natural disasters have become public safety incidents. In today's increasingly concerned about security, how to establish an effective public safety emergency mechanism as soon as possible, so that the city's emergency plan to maximize the role to play, to avoid losing the fore and become the problem that the city managers urgently need to solve.
Judging from this torrential rain in Beijing, personal security cannot be completely controlled by individuals. Personal security is based on the entire public safety system. There are many dangerous factors and hidden dangers in a city or region, such as natural disasters, social accidents caused by security factors, etc. These risk factors and security risks are often intertwined. Once they occur, the consequences are difficult to predict. Therefore, comprehensive security precautions must be taken to prevent disasters.
At present, the application of image information technology in the field of public security is more and more extensive, among which the role of promoting the emergency management level of the city and the construction of security prevention capacity is more significant.
With the development of urban informatization, the image information management system has received great attention in the management of some large cities. The image information management system has become an important means to assist government decision-making, maintain social stability, and handle emergency events. For example, in this torrential rainstorm, the traffic video surveillance system played an important role in transmitting images of water accumulation in various sections to the emergency management center in real time, and timely releasing traffic information based on images to help people avoid dangerous road sections. But only these are not enough. After all, the traffic video surveillance system is only a subsystem of city management, and it cannot fully cover the city. And the image information only flows in the traffic system and cannot be enjoyed by all management departments. This is the dilemma we are currently facing: Although some cities in China have already established an image information system. However, these image information systems are still isolated, and no linkage sharing mechanism has been established between each system, which often results in the blocking of image information and cannot be shared and utilized in the unified management platform.
Therefore, a unified and effective management and coordination mechanism must be established to effectively integrate and coordinate all established image information collection system resources such as public security, transportation, and other social sectors, achieve sharing, and establish standardized management requirements and operation and maintenance standards to ensure the deployment of reasonable. Through the integration of image information resources, a comprehensive coverage, efficient and sensitive public safety image information network is formed, and the comprehensive management capacity of the city is enhanced.
At the same time, the image information sharing mechanism was introduced into the urban emergency management platform, a comprehensive early warning and monitoring platform and an early warning information release platform for cross-department, cross-regional, and cross-disaster types were established, comprehensive prevention and disposal measures were implemented, and dynamic management and monitoring were implemented. Strengthen communication and coordination with news media, and make full use of media such as radio, television, internet, and mobile phone short messages, and timely release information on urban flood prevention and flood warning. In order to provide the basis for security and emergency, effectively improve the city's emergency management. It meets security and emergency requirements without wasting resources.
In addition, it is also necessary to improve the ability to monitor, make decisions, and respond to emergencies by improving the network's operational mechanisms for early warning and response to emergencies, and to respond to natural disasters, accidents, public health, and social security incidents. The mechanism plays an important role in promoting.
With the acceleration of urbanization in China, it is particularly necessary for urban security prevention and emergency response capacity building. I hope that this heavy rain in Beijing can awaken the managers of the city.
The heavy rains that have caused such great influence twice are only separated by one year and one month. Why Beijing has repeatedly been soaked by heavy rain. Why is Beijing repeating the mistakes every year and falling twice in one place? In the rainy season, going to Beijing to "see the sea" has become a laughing stock for people after dinner. A city has repeatedly experienced urban guilt. Even if the emergency plan for flood prevention and flood prevention is started, it will not help. After the heavy rain, the city is still in a messy state and traffic is paralyzed. People’s lives and property are seriously damaged. It may take time to discuss the deeper reasons in the city, but at the very least, the city's emergency plan must be played first. At the very least, the facts always give us cold water: the emergency management of urban security cannot catch up with the changes of the disaster. On the agenda.
Nowadays, with the rapid development of the city, various natural and human factors are intertwined. Judging from the impact of the above two torrential rains, it has been more than natural causes that violent storms have evolved into natural disasters. Human factors have played a major role in them and natural disasters have become public safety incidents. In today's increasingly concerned about security, how to establish an effective public safety emergency mechanism as soon as possible, so that the city's emergency plan to maximize the role to play, to avoid losing the fore and become the problem that the city managers urgently need to solve.
Judging from this torrential rain in Beijing, personal security cannot be completely controlled by individuals. Personal security is based on the entire public safety system. There are many dangerous factors and hidden dangers in a city or region, such as natural disasters, social accidents caused by security factors, etc. These risk factors and security risks are often intertwined. Once they occur, the consequences are difficult to predict. Therefore, comprehensive security precautions must be taken to prevent disasters.
At present, the application of image information technology in the field of public security is more and more extensive, among which the role of promoting the emergency management level of the city and the construction of security prevention capacity is more significant.
With the development of urban informatization, the image information management system has received great attention in the management of some large cities. The image information management system has become an important means to assist government decision-making, maintain social stability, and handle emergency events. For example, in this torrential rainstorm, the traffic video surveillance system played an important role in transmitting images of water accumulation in various sections to the emergency management center in real time, and timely releasing traffic information based on images to help people avoid dangerous road sections. But only these are not enough. After all, the traffic video surveillance system is only a subsystem of city management, and it cannot fully cover the city. And the image information only flows in the traffic system and cannot be enjoyed by all management departments. This is the dilemma we are currently facing: Although some cities in China have already established an image information system. However, these image information systems are still isolated, and no linkage sharing mechanism has been established between each system, which often results in the blocking of image information and cannot be shared and utilized in the unified management platform.
Therefore, a unified and effective management and coordination mechanism must be established to effectively integrate and coordinate all established image information collection system resources such as public security, transportation, and other social sectors, achieve sharing, and establish standardized management requirements and operation and maintenance standards to ensure the deployment of reasonable. Through the integration of image information resources, a comprehensive coverage, efficient and sensitive public safety image information network is formed, and the comprehensive management capacity of the city is enhanced.
At the same time, the image information sharing mechanism was introduced into the urban emergency management platform, a comprehensive early warning and monitoring platform and an early warning information release platform for cross-department, cross-regional, and cross-disaster types were established, comprehensive prevention and disposal measures were implemented, and dynamic management and monitoring were implemented. Strengthen communication and coordination with news media, and make full use of media such as radio, television, internet, and mobile phone short messages, and timely release information on urban flood prevention and flood warning. In order to provide the basis for security and emergency, effectively improve the city's emergency management. It meets security and emergency requirements without wasting resources.
In addition, it is also necessary to improve the ability to monitor, make decisions, and respond to emergencies by improving the network's operational mechanisms for early warning and response to emergencies, and to respond to natural disasters, accidents, public health, and social security incidents. The mechanism plays an important role in promoting.
With the acceleration of urbanization in China, it is particularly necessary for urban security prevention and emergency response capacity building. I hope that this heavy rain in Beijing can awaken the managers of the city.
Vibrating plate compactors are mainly suitable for materials with less cohesion and friction between compacting particles, such as river sand, gravel and asphalt. The main working parameters of the vibrating plate compaction are: the bottom area of the working plate, the mass of the whole machine, the excitation force and the excitation frequency. Under normal circumstances, the bottom plate area of the same type of plate is about the same, so the performance of the plate rammer is mainly affected by the quality, excitation force and excitation frequency of the whole machine. The excitation force is mainly used to maintain the forced vibration of the tamped material; The excitation frequency affects the tamping efficiency and compaction degree, that is, under the same excitation force, the higher the excitation frequency, the higher the tamping efficiency and compactness.
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