It is no exaggeration to describe the sudden mudslide disaster in Longnuo Village, Mozhen Town, Guzhang County, Hunan Province on July 17th. In an hour, the maximum rainfall in Moyu Town reached 104.9 mm, which was the maximum intensity of rainfall in Hunan Province this year. Within 15 minutes, more than 500 villagers quickly moved, and the debris flow then poured down, with no casualties. As the announcement of the Hunan Provincial Flood Control and Drought Relief Headquarters said: The most effective way to defend against torrential rains and mountain floods is to promptly warn and decisively deal with the threat of mass transfer in advance. People can't help but ask: What is the reason for these villagers to be transferred in time without falling into this disaster? How should we deal with the new round of heavy rainfall? What should we get from the mudslide disaster in Longnao Village? Burst Found that the mountain "waters", the organization threatened villagers emergency evacuation â–²The scene of the mudslide disaster occurred in Longnuo Village, Mozhen Town, Guzhang County, Hunan Province. (data picture) Longniu Village, Moyu Town, Guzhang County is surrounded by mountains and is located in a low-lying area. There are more than 3,000 people in the village, of which more than 500 people live within 100 meters of the mountain. Before the mudslide occurred, the danger had been continuously manifested with continued heavy rainfall. July 17 morning, in a mountain village, the Guangzhou Railway Group Zhangjiajie Public Works watchman Paul Hsu history is along the railway line inspections and found debris rolling down the hill from time to time, but the water is also growing. Shi Xubao immediately called the leader of the Works Department to report that it was going to collapse, and quickly blocked the railway! At 10:20, the Hunan Provincial Geological Disaster Emergency Center sent a short-term warning message to Guzhang County, and telephoned the Guzhang County Land and Resources Bureau to take precautions to prevent sudden geological disasters caused by short-term heavy rainfall. Shi Yuanzhong, director of Longnao Village, said: "On the afternoon of the 16th, I received a notice of heavy rain in Guzhang County. The mayor asked our village cadres to intensify inspections and found that the disasters were timely transferred to the people." After receiving the notice, Shi Yuanzhong, who had already prepared for the disaster, paid attention to the mountain behind the village from the beginning of the rainstorm on the morning of the 17th. At 9:58, when he discovered that the mountain began to "spray", he immediately realized that there would be danger, and immediately informed the village's militia and team leaders to launch a young and middle-aged labor force to organize villagers to transfer. Under the organization of the village cadres, the villagers began an emergency evacuation. At 11:50, more than 500 villagers who were threatened by geological disasters in the mountainous area of ​​Longnao Village were successfully transferred and evacuated. After 15 minutes, the debris flow occurred in the crowded building group, with a volume of more than 10,000 cubic meters, and 5 houses and 14 houses were instantly destroyed. At that time, Shi Weiguo, deputy director of the Guzhang County Land and Resources Bureau Office, was at the scene. At 10 o'clock, he received a message from Shi Yuanzhong on the inspection road and rushed to Longnuo Village. At that time, there were several landslides along the S229 road due to heavy rain, which had been traffic controlled. The inspection team had to take a section of the car and take a walk. When Shi Weiguo rushed to the scene, he found that the mudslide slipped directly from the mouth of the Jiaoliu Railway tunnel. Below the railway was the place where the villagers of Longnuo Village lived. Murray Village, Lijiazhai Village, Jiulong Village, etc. also caused 3 mudslides due to heavy rains, causing 8 houses to collapse. However, due to the decisive and timely transfer, there was no casualty in the town. For the cause of the disaster, Liu Xiangyu, secretary of the Party Committee of the Hunan Provincial Geological Disaster Emergency Center, conducted a post-disaster emergency investigation in Longmo Village, Mohe Town, analyzed: “The local rainfall is too large and too concentrated, and a large number of rushing rainwater on both sides are quickly concentrated in the middle of the ditch. At the gathering, the rainwater could not flow away quickly, some of them spewed out, and some of them sneaked in the saturated soil layer of the mountain to form mud. After loosening, they immediately slid down the steep slope." During the rainstorm, how can I judge the possible occurrence of disasters? Liu Xiangyu said that in the new geological disaster hidden point of Longnuo Village, the experts determined that the mountain was steep and the cutting was more severe, and there was a deeper mountain. Small ditch. Such a structure seems to be stable, and may actually bring sudden changes. As the first-line group anti-group testers inspected the hidden danger points of geological disasters every day, they discovered the precursors of the disasters and promptly transferred the threatened villagers. miracle More than 500 people evacuated safely, and the early warning and forecasting process is clearly visible â–²The scene of the mudslide disaster occurred in Longnuo Village, Mozhen Town, Guzhang County, Hunan Province. (data picture) The mudslide disaster of Longnao Village in Moyu Town, Guzhang County is only over 10,000 cubic meters, but the impact and destructiveness are very large. Why? Yin Yueping, chief engineer of the Geological Disaster Emergency Technical Guidance Center of the Ministry of Land and Resources, said that such cases are more common in the country, but we are shocked every time we rush to the scene. According to him, such debris flow disasters are very concealed and the scale is not large, but the impact and destructive power after the disaster is very strong, with the characteristics of chain geological disasters such as high position, high speed, long distance and air wave. After the occurrence of landslides and landslides on the mountain, it can be quickly transformed into a highly dynamic debris flow, which is particularly prone to the formation of heavy and extraordinarily geological disasters, resulting in mass deaths and injuries, and it is very difficult to prevent. The mudslide disaster in Longniu Village, more than 500 people evacuated safely, causing no casualties. It should be said that it is a miracle. The mudslide disaster took only half an hour from the discovery of danger and the transfer of villagers. Although the disaster occurred only a short 15 minutes, the various processes of geological disaster warning and emergency response are clearly visible: Guzhang County After receiving the notice from the Hunan Provincial Department of Land and Resources, it began to monitor the hidden dangers of geological disasters for 24 hours. On the day of the mudslide on July 17, the staff of the Guzhang County Land and Resources Bureau discovered the geological disasters during the inspection, and then transferred the key organizations. The 5 households with 26 people who were seriously threatened evacuated more than 500 people affected by the surrounding area. It is understood that as early as 2011, the State Council issued a decision on strengthening the prevention and control of geological disasters, and required the establishment of four major systems for prevention and control of geological disasters to strengthen prevention: First, do a good job in geological disaster investigation and assessment, and identify hidden points of geological disasters; It is to do a good job in monitoring and early warning of geological disasters, and to carry out group survey and prevention for each hidden danger point; the third is to do emergency response to geological disasters and set up an emergency rescue team combined with group; the fourth is to do comprehensive prevention and control of geological disasters and scientifically carry out geological disasters. Engineering governance. The debris flow disaster in Longniu Village was very successful from the beginning of meteorological warning, and early warning and warning were issued. The previous disaster prevention and avoidance training and emergency drills have enriched the local people with knowledge of disaster prevention and mitigation, and enhanced their awareness of self-protection and prevention. Therefore, once a disaster precursor is discovered, a successful evacuation takes place in a short period of time. The time returned to 23 o'clock on June 30, and the Hunan Provincial Geological Disaster Emergency Center held an emergency dispatching meeting for geological disaster prevention and control. At the end of the meeting, it was 2 o'clock in the morning of July 1. Six teams set off overnight, and after 8:00 in the morning, they immediately joined the local geological disaster prevention and emergency line. Yin Xuelang, deputy director of the Hunan Provincial Department of Land and Resources, said that such geological disaster technology meetings and emergency dispatches are almost every day during the flood season. In the flood season, the provincial government will deploy and start the plan in advance, and implement the administrative “top-notch†responsibility system with relevant departments, organize detailed investigations of geological disasters and inspections of hidden dangers, and carry out “disaster prevention knowledge to the countryside†and “geological disaster group surveyâ€. The group defense prevention county “creates activities and other activities to realize the interconnection and intercommunication of geological disaster warning and forecasting platforms at the provincial and municipal levels and some key counties and cities, ensuring that there are no geological disasters in the whole year. The reporter learned that in a WeChat group called “Pre-examination of the Provincial Hallâ€, the experts of the emergency supervision will immediately send pictures, disaster reports and emergency measures for the disaster site every time they go to a geological disaster point. In the middle of the night, the official report of each emergency steering group will be submitted to this WeChat group simultaneously. Liu Wuyi, director of the Department of Geology and Environment of the Hunan Provincial Department of Land and Resources, dispatched emergency work at the WeChat group at any time, and went to the scene in a severely affected area according to the situation. According to the statistics, as of July 12, the Hunan Provincial Geological Environment Department has dispatched 18 batches of 80 people in the provincial emergency investigation team to complete the annual geological disaster emergency dispatching work, and completed 168 check-ups of duty duty on duty in the city and county duty rooms. Hidden points were inspected 220 times. Yin Yueping said that some areas in Hunan Province are geological disaster-prone areas, and early geological disaster investigations have already identified the hidden danger points of Longni Village in Guzhang County. Because this point is small, it is impossible to be listed as a key prevention and control project. However, it has been listed as a high-risk area for geological disasters, and it has been incorporated into the monitoring and early warning system for group monitoring and prevention. The essential The occurrence of land disasters is short and fast, and the identification of precursors is the focus. â–²The scene of the mudslide disaster occurred in Longnuo Village, Mozhen Town, Guzhang County, Hunan Province. (data picture) Every morning at 8:00, the "Hunan Earth Ring" QQ group will always be on time and constantly ringing. After a night of duty, the geological disasters of 14 cities and counties and 122 counties in the province were gradually summarized in this QQ group. Before the onset of heavy rain, meteorological information will be announced in the group; in heavy rain, there will always be staff from the Department of Geology and Environment of the Municipal and County Land and Resources Department requesting the Hunan Provincial Geological Disaster Emergency Center to provide real-time satellite cloud maps of the region. Liu Wuyi introduced that in this QQ group, there are more than 22,000 township and village geological disaster group inspection group guards in the province with more than 18,000 geological disaster hidden danger points sticking to the hidden danger points of geological disasters. In March of the beginning of the flood season, in the Xiangxi, Xiangnan, Xiangzhong, and Dongting Lake areas, seven inspection teams, 167 disaster technologists, and 18,700 disaster-stricken group defenses organized by the Hunan Hall A survey of more than 18,000 hidden dangers in the province was carried out. In the early morning of July 4, Chen Haibo, secretary of the branch of Yuchishan Village, Chuanshanping Town, Miluo City, led the geological disaster inspection team to conduct routine inspections as usual. During the inspection, he suddenly noticed that the clear water in the ravine became very muddy. Based on this anomaly, he immediately judged that it is very likely that a geological disaster will occur. Chen Haibo immediately reported the danger to the People's Government of Chuanshanping Town and quickly organized the evacuation of the villagers. After two hours of evacuation and evacuation, 142 households and 526 villagers were all evacuated in time; less than 10 minutes, accompanied by a loud noise, large-scale flash floods broke out and no one was killed or injured. It is understood that as of July 12, Hunan Province has successfully avoided 116 geological disasters, and urgently transferred 12,494 people who were threatened, avoiding 1559 casualties and recovering economic losses of 26.18 million yuan. Hunan is one of the most serious geological disasters in the country. The geological disaster-prone area accounts for 91% of the total area of ​​the province. Nearly 20,000 hidden dangers of various geological disasters have been identified, threatening the population and causing annual geological disasters. Casualties and property losses are enormous. In 2014, Hunan, Gansu, Sichuan, and Yunnan provinces were listed by the Ministry of Finance and the Ministry of Land and Resources as the provinces that focused on the development of integrated geological disaster prevention and control systems. Subsequently, the Hunan Provincial Department of Finance, Department of Land and Resources jointly issued the "geological disaster financing and the use of special funds approach", focusing on the investigation and evaluation, monitoring and early warning of relocation, disaster management, capacity building five projects, the completion of a comprehensive integrated geological disasters The target of prevention and control systems, casualties and property losses. Yin Yueping pointed out that practice has proved that it is very scientific and feasible to promote the construction of integrated geological disaster prevention and control systems in key provinces and should continue to advance. Due to the professional training after investigation and evaluation and early identification, Chen Haibo and Shi Yuanzhong discovered that the turbid yellow water appeared in the mountain before the two mudslides occurred. The report was given to the leaders of the town government and the Land and Resources Bureau, and quickly and smoothly organized after receiving government support. The masses are transferred. Therefore, early identification of geological disasters is critical. Yin Yueping believes that all the collapses, landslides, and mudslides, although short-lived and fast, will have some precursors. If the rolling stone in front of the landslide is down, or if the landslide is converted into a mudslide, it is necessary to consciously go to the scene to see that when the slope expands little by little, it indicates that mudslides will soon occur; sometimes a valley is suddenly broken. It may be that the collapsed landslide blockages the running water and is forming a dammed lake, and personnel evacuation is required immediately. Therefore, many precursors are obvious, the key is to seize the opportunity. At present, the country is also carrying out knowledge training in this area, especially the short-term knowledge training before the disaster, that is to say, how to evacuate personnel in the ten minutes before the disaster occurs is the most important. In addition, Yin Yueping also pointed out that by reviewing the mudslide disaster in Longnuo Village, Guzhang County, the importance of government supervision was also reflected. First of all, the government should urge the construction of the four major systems of geological disasters as soon as possible and be implemented well. In the early days, there were some lessons. Some large and medium-sized enterprises turned a deaf ear to the warnings issued by local township governments and group-testing group defense personnel. They always believed that there could be no geological disasters. In fact, these people have undergone special training, and they have been inspecting the disaster prevention and mitigation frontline all the year round. They have certain knowledge and experience, and they are more responsible for their responsibility. Second, the government will also organize four major systems to build concrete actions. Such as monitoring and early warning, organization transfer, relocation and avoidance, how to put professional knowledge to the ground, etc., local land and resources departments, township leaders, village party branch secretary and village head and other grassroots cadres must be clearly defined, and grasp the end. response Targeted training based on the characteristics of disasters to enhance preventive capacity It is understood that chain geological disasters are characterized by concealment, complexity and suddenness. On December 2, 1996, a landslide with a volume of 26,000 cubic meters occurred in the main city of Guiyang City, Guizhou Province. Although the volume was small, it caused a major disaster, with a death toll of 35 people. Through investigation, the landslide is a typical bedrock landslide. The landslide body has a very fast gliding speed and a very short time. The whole process is only about 5 seconds. After calculation, its sliding speed is nearly 10 m / s, which is a high-speed landslide. Obviously, such sudden landslides, if not predicted in advance, are difficult to react in time to escape. There is also the “1·11†landslide that occurred in Zhenxiong, Yunnan in 2013. The affected people lived in the ditch area where the terrain is relatively flat and the population density is relatively high. Although the landslide is only 200,000 cubic meters, it is very fast, and people are too late to avoid and evacuate, resulting in 46 deaths. Through on-site investigation and image analysis obtained by drones, it can be clearly seen that after the landslide source is launched, collisions and scraping of the slopes and valleys of the slopes are carried out during the rapid movement, not only carrying a lot of The rock mass and debris also produce a lot of smoke, dust and noise. This high-level sliding has a “scraping effectâ€, which increases the landslide deposit to at least 400,000 cubic meters, which increases the harmfulness of the landslide. High speed remote landslide. Because the source area is not in the line of sight of people's defense, the concealment is very high, which greatly increases the difficulty of prevention and risk avoidance. On July 21, the Ministry of Land and Resources issued the "Notice on Implementing the Spirit of the General Secretary of the General In-kind, Mr. Jinping, Doing a Good Speech on the Current Flood Control, Flood Relief, Disaster Relief Work," and proposed seven measures to strengthen the prevention and control of floods during the flood season. In this regard, Yin Yueping stressed that at present, the concealment and randomness of geological disasters are getting bigger and bigger, and the scale of occurrence is getting smaller and smaller. How can professional teams strengthen the early identification in this aspect and try to find such disaster points as soon as possible? Coming out should be a top priority for disaster prevention and mitigation. In particular, such geological disasters have a chain-like characteristic. After the high position is started, they are converted into mudslides and then formed into a barrier lake. The impact force and destructive force are very large. How to strengthen the assessment and carry out professional training is very important in the next step. Training of professionals should be strengthened so that they can go to the villages to train village officials and ordinary people, and they will be fully rolled out. At the same time, each training should be combined with the characteristics of the disaster to add new content. For example, in view of the characteristics of the high-level, high-speed, long-range and air-wave disasters in the Lunao Village of Guzhang County, the identification of professional and technical personnel should be emphasized. ability. In addition, the experts recently issued two reminders: First, due to the combined influence of cold and warm air, the phenomenon of “Northward Moving Eastward Movement†appeared in the rainy area, which made it possible for the northern part of the previous geological disaster prevention and control pressure to become a frequent occurrence area; Geological disasters have a certain lag. After the end of heavy rainfall, the probability of sudden landslides and other disasters in saturated soils is high, and should be more vigilant. In view of the fact that the northern part of the country suffered greatly from the floods in the northern part of the country, Yin Yueping pointed out that at present, the northern part of China, especially the northwestern region, is located in the Loess Plateau, and the special structure of the loess land leads to frequent occurrence of geological disasters. At the same time, due to the influence of geographical environment, it is difficult to effectively avoid the hidden dangers of geological disasters in some residential houses, urban and rural construction, and the location of factories and mines. Most of the construction sites have slope cutting and excavation filling, and a large number of high and steep slopes are formed. The threat is very serious. Coupled with continuous heavy rainfall, the daily precipitation of the local area exceeds the historical extreme value, and the danger of hidden dangers is further aggravated. Therefore, it is necessary to intensify the investigation and inspection of geological disasters, find new risk points in time, identify key prevention areas, strengthen emergency duty, and take emergency avoidance measures in a timely manner. At the same time, we must keep a close eye on the weak links exposed in the prevention and control work, and timely revise and improve the plan to form a defense system of “horizontal to the side, vertical to the end, no dead ends, seamless coverage†to ensure that every threat is threatened. The masses have clear transfer routes and resettlement sites. According to analysis, in the next five years, China's geological disasters such as heavy rainfall and earthquake-induced landslides, mudslides, and collapses will show a high incidence. The geological disasters are more sudden, abnormal, and concealed, and the situation is more serious. So, how should we increase our awareness of prevention and respond positively? In this regard, Yin Yueping emphasized that from the perspective of recognition ability, large landslide bodies are easy to find and identify. For some small and high-speed high-speed remote landslides with smaller and smaller scales, it is necessary to change the previous investigation work mode. The dangerous areas should be demarcated by the angle of the area and the belt. After the dangerous area is determined, the knowledge training should be carried out according to its characteristics. In particular, under the influence of induced factors such as human engineering, climate change, and earthquakes, such "chain-like" and "variant" geological disasters have gradually emerged and become more prominent in China in recent years. Therefore, it is impossible to rely solely on general training knowledge. It is necessary to combine some of the characteristics of large disasters and strengthen training according to the new variability of disasters and the mode of disasters. Only by carrying out such targeted training, combining local practical training and achieving good disaster prevention and mitigation effects, can the people's self-protection awareness and self-rescue ability be enhanced and improved, and then deepened. These will be the focus of future geological disaster prevention and control work. link What is a chain geological disaster? The chain-like ground disaster refers to the disaster of collapse and landslide body that is rapidly transformed into a mudslide after heavy rain. It has the characteristics of wide distribution, disaster and strong destructiveness. After many natural disasters occur, a series of secondary disasters are often induced. These disasters often have bursts or chains and form a chain of geological disasters. In the high mountain areas, storm chains such as heavy rains, collapses, landslides, and mudslides are common, with high-level, high-speed, long-range, air-wave, and concealed and easy chain-like disasters. They can be converted into mudslides after high-level start-up. And then form a barrier lake. Although such geological disasters seem to be small in scale, they are concealed, impactful and destructive, and cause huge economic losses and casualties every year. This is the top priority of the current investigation and prevention. Financial Equipment Accessories Financial Equipment Accessories,Stamping Hardware Processing,Mechanical Hardware Processing,Zinc Alloy Die Casting Processing Dongguan Shangjie Precision Hardware Co., Ltd , https://www.sphzincalloy.com