Khon kaen: Investigations are currently being conducted to determine the cause of a crane overturning incident involving a prefabricated house in Khon Kaen province. Today, a crane tasked with lifting a prefabricated house was unable to manage the weight, resulting in the crane tipping over and the house collapsing onto another residence.

According to Thai News Agency, Prof. Dr. Amorn Pimanamas, President of the Structural Engineers Association of Thailand and a professor at the Faculty of Engineering, Kasetsart University, stated that a mobile crane, different from a stationary tower crane, was used in the operation. While the exact cause of the overturning remains unknown, five potential factors have been identified.

The first hypothesis suggests that the lifting point position may have been incorrect, causing an off-center center of gravity and excessive force that surpassed the crane's load capacity. The second possibility is overloading, involving improper crane load capacity or lifting angle of the crane boom. Another consideration is that the crane's support base may not have been strong enough to prevent overturning.

Additionally, the absence of a proper lifting plan and procedure is being examined. It must also be confirmed that the crane operation adhered to the Ministerial Regulation on the Standards for Management, Administration, and Operation of Safety, Occupational Health, and Working Environment concerning Machinery, Cranes, and Boilers, B.E. 2564 (2021). This regulation mandates the presence of four trained operators: an operator, a signaler, a material handler, and a supervisor.