Lashing / Unlashing Support to Heavy Lift Cargo Operations

Lashing and unlashing support is a crucial aspect of heavy lift cargo operations, especially when transporting oversized and heavy items on ships. Lashing involves securing cargo to prevent movement, shifting, or damage during transit, while unlashing is the process of releasing and removing the securing arrangements once the cargo has reached its destination. Here’s an overview of lashing and unlashing support in heavy lift cargo operations:

Lashing Support:

1. Cargo Assessment: Before lashing, assess the dimensions, weight, and center of gravity of the cargo. This information helps determine the appropriate lashing methods and equipment.
2. Lashing Plan: Develop a comprehensive lashing plan that outlines the arrangement of lashings, securing points, and types of equipment needed for each piece of cargo.
3. Lashing Equipment: Select the appropriate lashing equipment, such as chains, wires, webbing straps, turnbuckles, and shackles, based on the cargo’s characteristics and the ship’s structure.
4. Structural Analysis: Consider the structural integrity of the ship’s deck and cargo hold. Ensure that lashings are connected to strong points that can handle the applied forces.
5. Securing Arrangements: Use the chosen lashing equipment to secure the cargo in accordance with the lashing plan. The goal is to prevent any movement in all directions (vertical, lateral, and longitudinal).
6. Tensioning: Properly tension the lashings to ensure that they are secure but not over-tightened, which could lead to damage to both the cargo and the ship.
7. Even Distribution: Distribute the lashings evenly across the cargo to avoid uneven stresses that could lead to cargo deformation or damage.

Unlashing Support:

1. Safety Precautions: Before unlashing, ensure that all personnel involved are wearing appropriate personal protective equipment (PPE) and follow safety protocols.
2. Unlashing Plan: Similar to the lashing plan, have a plan in place for the systematic removal of lashings to avoid sudden shifts of cargo.
3. Step-by-Step Process: Unlash cargo systematically, following the plan. Start with the most critical lashings that hold the cargo securely in place.
4. Controlled Release: Release tension from lashings in a controlled manner to prevent sudden movements or shifts of the cargo.
5. Inspection: As each lashing is removed, inspect the cargo for any signs of damage or shifting. Address any issues promptly.
6. Record Keeping: Maintain records of the unlashing process, including the order of removal, any issues encountered, and the condition of the cargo.

Expertise and Training:

Lashing and unlashing heavy lift cargo requires expertise and specialized training. Experienced personnel who understand the principles of cargo securing, ship dynamics, and safety procedures are essential for successful operations. Additionally, adhering to international guidelines, standards (such as the IMO’s Code of Safe Practice for Cargo Stowage and Securing), and the ship’s specific procedures is critical.

Lashing and unlashing support plays a significant role in ensuring the safe and efficient transport of heavy lift cargo, minimizing the risk of cargo damage, vessel stability issues, and safety hazards during transit.