The technical reasons for the explosion of steel plate warehouse are explained from the perspective of structural mechanics.

The internal structure of the metal used in the steel silo wall is uneven, which leads to unbalanced stress transmission and some places will become stress concentration areas. At the same time, there are many tiny cracks in the defects inside the metal. In high latitudes, because the air pressure and temperature are far below the normal value, under the continuous action of force, the cracks will become larger and larger, and the ability of metal materials used for the steel silo wall to transmit stress will become weaker and weaker, until the remaining parts can no longer transmit loads, the metal walls of the steel silo will be completely destroyed, leading to the explosion of the steel silo. The technologies such as "settlement decompression and seismic building infrastructure" of wdcpo steel silo patent group are the technologies that specifically solve the problem of preventing steel silo explosion.

[1] metal fatigue degree is related to air pressure, temperature, metal stress structure and electromagnetic intensity. The fatigue degree of the metal used in the steel silo wall is also related to the detailed data such as the density, water content and lateral pressure of the contents. At present, there are "settlement decompression and earthquake-resistant building infrastructure (patent No.20092035 1236.4)" and multi-functional cone-shaped large warehouses (patent No.200920279367.6) in wdcpo steel warehouse patent group. In particular, the key technologies such as perfect powder silo discharging system, increasing the structure of building foundation bearing capacity under any geological conditions, reducing the fatigue of metal silo wall in high latitude and preventing silo body explosion are adopted, which improves the discharging rate of powder silo, improves the building foundation bearing capacity of large steel silo and prolongs the service life of large steel silo in high latitude to the theoretical design life.