Edit | Zhao Meng
On June 22, 2022, 1 1, seven days after losing contact, four members of Kunming Natural Comprehensive Investigation Center of China Geological Survey were found, but they were all killed. 165438+1October 15, these four people went to work in the hinterland of Ailao Mountain from zhenyuan county, Pu 'er City, Yunnan Province, and did not go down the mountain as scheduled.
It is worth noting that when the search and rescue team found four members, their RTK equipment (real-time differential equipment) was not turned on. Earlier media reports said that many hospital doctors and senior mountain rescuers said that according to experience, the reason for the distress of Ailaoshan four people is more likely to be temperature loss.
Dong, an associate researcher at China Institute of Geology and Geology, told Interface News that the power of the equipment is limited, and the geological team will only turn it on when necessary according to the situation. "In addition, Ailao Mountain belongs to the alpine valley area, which is densely forested and rainy. Even if the system is turned on, the signal may be extremely weak.
According to the news of Pu 'er City Joint Command for Search and Rescue of Lost Persons,1,2 1, 18: 33, the search and rescue command received a report from the searchers. In Shuitang Town, Xinping County, Yuxi City, Ailaoshan, three people who lost contact were found at a straight line distance of 1.85 km in the southeast of the survey plot, and all of them had no vital signs. 165438+1At 8: 32 on October 22nd, the fourth person who lost contact was found with no vital signs.
According to the news from the rescue headquarters, the four lost geological prospectors are Zhang Jinbang, Min Yang, Zhang Yu and Liu Yu. The oldest of them is 32 years old and the youngest is 25 years old. They all served in the military. Wear a jacket when losing contact, and carry disposable raincoats, RTK equipment, surveying and mapping tools, sappers' shovels, materials (eight-treasure porridge, drinks), etc.
The joint command of Pu 'er City for the search and rescue of missing persons told the interface news that the remains are being transferred, and the details have yet to be announced. The cause of the accident is still under investigation.
According to previous reports, the lost plot is located in Ailaoshan Nature Reserve, with high mountains and steep forests and criss-crossing gullies, with an average elevation of more than 2,500 meters. The geographical environment is very complicated, and the rainy and foggy weather has brought great difficulties to the search and rescue work.
CCTV previously reported that after the zhenyuan county police received the report, Zhenyuan County Committee attached great importance to it and immediately set up the "1 1. 15" rescue headquarters for the missing persons. Relevant personnel from all levels and departments invested 1000 person-times, 165438 vehicles and satellites.
In June165438+1October 18, some villagers reported that they saw fire smoke and thought it was the trace left by missing persons. 165438+1October 20th, the searchers found the raincoat of the missing person in their work. This raincoat was found in Baishui River, Dong Zhe Town, zhenyuan county, Pu 'er City, and the excrement of the missing person was also found downstream and near the simple camping shack.
Zhang Zhaohui, executive deputy head of zhenyuan county and executive deputy commander of the search and rescue headquarters, told the media earlier that Ailaoshan Nature Reserve is the largest pristine moist evergreen broad-leaved forest in China, so the wild animals such as bears and snakes living here are no small risk to the lost persons or rescuers.
"Geological exploration industry is a dangerous job, which belongs to high-risk industry in the classification of industry safety production risks. Its safety production risk is higher than that of construction enterprises. It has the characteristics of high mobility, dispersion, hard working conditions and working environment, and complex and changeable factors affecting its safe production. " Dong said, "In the process of field geological exploration, various production safety accidents may occur due to natural conditions, environment, climate, technical equipment, operation management processes and other factors."
In recent years, geological exploration accidents have occurred from time to time. On July 30, 2022, Southwest Petroleum University 1 led four students to make a field geological survey. On the way, a mudslide occurred, and four teachers and students were killed. 1 The students survived. On July 8, 2022, Dr. Li Xianglong from the Institute of Geological Environment Monitoring of China Geological Survey was killed in the collapsed loess while investigating geological disasters in Gansu.
The Safety Regulations for Geological Exploration issued by the Safety Production Management Department has made detailed provisions on the safety precautions for field geological exploration, such as "knowing and mastering the safety situation of geological exploration work areas, including animals, plants, microbial damage sources, epidemic infectious diseases, epidemic infectious sources, natural environment, human geography, traffic, etc., and establishing files", carrying qualified equipment, materials, tools and instruments, and encountering emergencies,
"Among them, teamwork is the most important norm." Dong said that the high-risk work of geological exploration depends on teamwork. The Safety Regulations for Geological Exploration also clearly stipulates that when working in mountainous areas (snow), the distance between two people shall not exceed the effective line of sight. When working in glaciers and snow, the operators should be in groups of two, and the distance between them should not be greater than 15m. "In addition, risk assessment work such as safety pre-judgment and weather forecast cannot be ignored." He said.
If you get separated from your companions in the wild, how can you save yourself? Dong said to him, "First of all, you should stay in a place where there is no danger. If there is a signal nearby, and the contact tool still has electricity at that time, you can send a distress signal to an empty place. " He said, "If you encounter rain, landslides and wild animals, you need to find a safe place to hide."
"Geological exploration activities are mainly field operations, influenced by natural factors such as meteorological environment, topography and geology, human factors such as engineering layout, work, quality and health, and human activities in the exploration area. There are mainly the above types of dangerous and harmful factors, which run through the whole geological exploration activities and directly threaten the health, life safety and property safety of personnel. " Dong said that only by scientifically, systematically and comprehensively identifying and analyzing dangerous and harmful factors in exploration operations can accidents be effectively reduced and controlled.
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