How to Load Prefabricated Houses onto Ships

The methods for loading prefabricated houses onto ships vary depending on the specific project and conditions, with common approaches including modular loading and the use of specialized marine lifting equipment. The following describes the specific operational procedures with reference to actual cases:

Modular House Loading Centered on Factory Pre-assembly
Taking the Xiaomo International Logistics Port project in the Shenzhen-Shantou Special Cooperation Zone as an example, modular houses are fully manufactured in the factory, including the integration of systems such as walls, floors, and pipelines. After manufacturing, the house modules are transported to the dock yard by short-distance transfer vehicles and temporarily stored in the order of loading. When loading operations commence, gantry cranes or bridge cranes equipped at the dock are used to directly lift the modules from the yard to designated positions on the transport ship's deck. This process requires advance planning of the deck layout to ensure alignment of connection interfaces between modules, providing a foundation for subsequent offshore assembly or overall transportation. The advantage of modular loading lies in factory production ensuring quality and short-distance transfer reducing transportation risks, but it requires the dock to have large lifting equipment support.

Marine Prefabricated House Loading Relies on Specialized Lifting Equipment and Ship-Machine Coordination
Taking the Shanghai Marine Disaster Prevention and Control Project as an example, the project involves long-distance marine transportation (85 nautical miles) and requires solving the challenges of overall house lifting and stable placement at sea. During operations, the project team first develops and customizes specialized lifting equipment, connecting it to pre-embedded lifting lugs on the top of the house through high-strength steel cables to ensure even force distribution during lifting. Subsequently, the lifting arm of the crane ship slowly lifts the house, detaching it from the ground or support platform, while module vehicles assist in adjusting the house's angle to avoid collisions with surrounding facilities. After lifting to a certain height, the transport ship approaches the crane ship, and the house is smoothly placed onto fixed bases on the transport ship's deck using a precise positioning system and temporarily secured with bolts or welding. This method requires strict selection of the shipping window (such as periods with small waves) and coordination of the operational rhythms of module vehicles, crane ships, and transport ships to ensure safe marine transportation.

Key Considerations
Regardless of the method used, structural reinforcement of the house (such as adding temporary supports) is necessary before loading to prevent deformation during transportation; the transport ship's deck should be laid with anti-slip pads to prevent the house from sliding; and an emergency plan should be formulated to respond to sudden weather changes or equipment failures.