Anchor holding power testing method

Abstract

The invention discloses an anchor holding power testing method, which comprises the following steps of: arranging a temporary anchor and an anchor cable thereof at the diagonal position of a target anchor, arranging a steel strand tensioner and a steel strand at the proper position of the target anchor and the temporary anchor, and connecting the target anchor and the temporary anchor through the steel strand tensioner and the steel strand; then continuously tightening the steel strand through the steel strand tensioner, so that the target anchor and the temporary anchor are gradually close to each other, and stressing the target anchor gradually until the test load is reached. Hereinbefore, the capacity of the anchor holding power testing method depends on the capacity of the steel strand tensioner, the capacity can reach 1000 t or above in the current engineering practice, the capacity far exceeds the towing force of a tug, and the requirements for holding power testing of most anchors in the current engineering practice can be met. The anchor holding power testing method does not need to use large ship resources in the application process, and has good economical efficiency than a method similar to the large ship resources.

Description

technical field [0001] The invention relates to the technical field of ships and marine engineering, in particular to a method for testing anchor holding power. Background technique [0002] Anchor holding force test is a necessary step in offshore anchor-dropping operations. It is used to check whether the set anchor can achieve the designed holding force, and to prevent anchor slipping during subsequent operations, which may lead to catastrophic accidents. The conventional anchor holding force test method is to use a tugboat for towing, relying on the thrust generated by the tugboat’s propeller to resist the anchor’s holding force. This method has the advantages of simple operation and quick construction, so it is widely used. However, this method is limited by the capacity of the tugboat. At present, the anchor holding force test limit that can be achieved in China is about 300t. [0003] As the scale of offshore floating structures becomes larger and larger, the environ...

AI Technical Summary

Problems solved by technology

This method has the advantages of simple operation and quick construction, so it is widely used. However, this method is limited by the capacity of the tugboat. At present, the anchor holding force test limit that can be achieved in China is about 300t.

Images