Security has always been a bit heavy words, "away from home, pay attention to safety," "work outside the home, pay attention to safety," the family told, nothing more than the word security, it is in every human heart, and with affection for the ties, with love to host. As opposed to the security, there is the word accident. Each accident, will affect people's hearts, sympathy for the victims, sad for the dead. Today small to share two accident-related words: Hain law and Murphy's Law.
Hain rule definition: any unsafe incidents are preventable.
Hain rule states: behind every serious accident, must have played 29 minor accidents and 300 threatened and attempted from 1000 onwards accidents. If people before the security incident, accident precautionary signs, signs of the accident, in advance take effective preventive measures, then, signs of the accident, the accident sign, the accident itself will be reduced to a minimum level of safety will improve.
We look at a real case: 16 years occurred in November 24th Fengcheng power plant accidents, resulting in 73 people dead and several injured. Each responsible person has been punished by the law, but could not save 73 lives. Now let us look back at what caused this terrible accident in the end yes.
The accident occurred at around 7:00 am on November 24, when 53 of the horn wall is completed pouring, curing 50th horn wall has about 30 hours, in the removal of the horn wall 50, 50, 51, the first horn outside wall collapse fall, causing templates platforms fall and collapse pingqiao cable connection, woodworking 70 people, a pingqiao operators and two elevator operator were killed and several others injured in the basement of the tower. From here we can see the direct cause of the accident is a cylindrical wall collapse.
So what causes the pen to collapse is it? According to the accident investigation, that time of concrete under temperature conditions tested, results are displayed in the conservation of 30 hours, 16 hours, 4 hours (respectively, 50, 51, 52 horn wall) intensity of about 2.35MPa, 0.29MPa, no strength. Far below the "hyperbolic cooling tower construction and quality acceptance" of 6MPa limits. It follows climate issues resulting in insufficient strength of concrete, resulting in the collapse of the tube wall.
Before the accident, the maintenance of the test piece under the same conditions should have a third-party laboratory inspection and test report to the minister of the construction side project, decides whether to continue construction form removal. But in fact curing test block only occasionally mixing station to do strength test, the test side after 24 construction workers have been unable to find an uncured concrete mold release, mixing station to test strength of 1MPa. Minister of Construction did not take any action after obtaining report. The construction side on the 11th to get cool news, request for additional early strength agent, mixing ratio adjustment, but the work is not implemented. (Data from almost known: Min)
This leads us to a clear context: the management of failure to implement the requirements of the concrete strength is not enough è è tube wall collapse.
This is certainly not the cause of all causes of the accident, but they are most clearly a context. In hindsight if we can ensure that all work is done in accordance with the requirements, then this accident would not have occurred is not it? Safe than days, responsibility to prevent the front row.
Murphy's Law
Murphy's Law from a man named Captain America "Murphy", he believes that "as long as the cause of the accident exists, the accident will happen," and that "no matter how small the possibility, but there will always happen, and cause the maximum possible Loss".
Content: Nothing is ever as it seems simple; everything will be longer than you anticipated time; something wrong will go wrong will go wrong; if you are worried about a situation occurs, then it is more likely to occur.
Murphy's Law of the original sentence is this: If there are two or more ways to do something, of which a selection method will lead to disaster, it will be those who will make that choice. Murphy's Law in the technology sector spread like wildfire, because it points to the fact that an iron: the fact that technical risks can be unexpected by the possibility becomes.
Target security management is to prevent accidents, and accidents is an infrequent and undesirable incidents, the probability of these accidents are generally small, is a small probability event people called. Because these small probability events do not happen in most cases, so often overlooked, generating chances and careless thinking, this is precisely the cause of the accident in charge. Murphy's Law warned that the safety awareness of the moment can not relax. To ensure safety, we must act now, starting with me, take active preventive methods, means, and measures to eliminate people unwanted and unexpected events.
Shaw said the only lesson of history gives is that people have never learned any lesson in history; Hegel says that man will not learn a lesson from history, it will only keep repeating history. Preventive measures, good security management and control, is the most important thing in the operation, a lesson guide for the future, the world is no longer willing to accidents. Further information is available clouds cool technology ...
Reproduced in: https: //blog.51cto.com/14393461/2410495