In the stormy night , a 21 -year-old girl named Yanglijun from Shaoyang accidentally fell into a sewer without lid in Changsha City, then was swept away by rushing water , is still missing,even though the incident from the past 20 hours have passed , Changsha citywide search and rescue is still continuing , and users have many dedicated people to pray for the girls , expecting a miracle.
Read this news disturbing , the sewer without cover became terrifying traps. If the sewer has manhole cover , this girl will not be engulfed by sewer . So , you have to ask : how are manhole covers missing? According to the saying of an eyewitness , the manhole covers may have been washed away by the rushing water ? . Incident to A store owner near the accident place said that he really saw the manhole covers here a few days ago.
If the witness he said is true, it is surly that the sewer cover was washed away by the water , which makes thinking , why sewer cover would be washed away by the water ? As everyone knowns, city sewer manhole covers are directly on the sewer mouth and there is no fixed connection between the covers and sewer mouth . Although this connection for easy installation and maintenance , but also obvious defects . As long as you have strength , you can take the covers , city manhole covers are often stolen, closely related to the installation of this no fixed measure. Similarly, when the city hit by torrential rain , there is no fixed measure covers can easily be washed away by the water . At this point, if there is no conspicuous warning , loss of sewer manhole cover became one very hard to detect the deadly traps.
So, After a manhole is cover,there are still a lot of thing to do. If you use something to fix the covers and sewer mouth , so that the covers are difficult to be washed away . Such measures are not complicated. For example , play a few small eyes in the sewer mouth , and then install several nails under the corresponding decentralization covers , during installation, the nails inserted into the sewer mouth small eyes, so the cover and sewer mounth can bite each. In addition, it can be installed a safety net on the sewer mouth , so that even if the water covers were washed away , and this layer of protection network protection. In this way , those who can effectively prevent theft , but also to prevent water wells were washed away , nor hinder open manhole cover in case of emergency.
Details determine success or failure, urban public management also have to pay attention to details. The more details , the more it can reflect a sense of responsibility to serve the people . The so-called details are inconspicuous place , for example, street lights are not bright , manhole cover damage and theft. In urban management purposes , these are some little things , but to people’s lives but it is a real inconvenience and sometimes can spawn big trouble. Case in reality , is no manhole cover ” attack ” had a lot of injuries occurred , again and again , ” covers tragedy” remind us , manhole covers installation must be redesigned , no longer a ” cap ” over. Otherwise, a similar tragedy will repeat itself.