On the morning of August 17, the water level of Mianyang in Fujiang continued to rise, exceeding the warning value, posing a great threat to Fujiang Bridge in baoji-chengdu railway. In order to prevent the Fujiang Bridge from being damaged, China Railway Co., Ltd. quickly blocked this line and adopted? Heavy car pressure beam? Methods of increasing bridge weight. After this video was uploaded to the Internet, it attracted a lot of people's attention. What is the principle of this operation?

First, the principle of heavy vehicle beam pressing

Baoji-chengdu railway Fujiang Bridge is a steel structure bridge with light self-weight and limited flood resistance. On this bridge, adding heavy objects can increase the weight of this bridge and prevent it from being washed away by the flood. This method has been used as early as 20 18, and has successfully prevented the flood from damaging the bridge.

Second, this heavy rain is coming.

This flood in Sichuan may be the worst in recent decades. The skyrocketing water levels in various places have had a great impact on people's lives, and many people have been forced to move. This road is a key road in Sichuan, and once it is destroyed, it will cause serious losses to the traffic in Sichuan. In order to reduce this loss, this special way can only be used to protect the safety of the bridge.

Three. Matters needing attention of heavy vehicle pressure beam

Heavy vehicles press beams and bridges to protect safety. However, we also need to pay attention to some special matters. Before taking action, we should calculate the maximum weight that the bridge can bear to prevent it from exceeding that limit. And the speed should also be paid attention to, not too fast to avoid emergency braking, and should be kept below 10 km per hour.

The heavy truck has been put in place, and now we just need to wait for the day when the heavy rainfall passes, but we should always pay attention to the heavy rainfall and make corresponding treatment in time to tide over this difficulty safely.