Anchor holding power testing method

A test method and technology for anchoring cables, applied in the field of ships and marine engineering, can solve problems such as the limitation of tugboat capacity, and achieve the effect of reducing dependence, low dependence and strong adaptability

Pending Publication Date: 2022-01-21
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0024] See Figure 1 to Figure 4 As shown, the anchor holding force test method provided in this embodiment needs to be equipped with a target anchor 3 and its anchor cable 31 for carrying out the anchor holding force test, a temporary anchor 4 and its anchor cable 41 for providing the reaction force required for the test, and a steel strand. Wire tensioner 5, hydraulic power station 2 providing power for steel strand tensioner 5, hydraulic pipeline connecting hydraulic power station 2 and steel strand tensioner 5, providing protection for steel strand tensioner 5 and the support frame 6 supported, the steel strand 7 used in conjunction with the steel strand tensioner 5, the connector 8 connecting the steel strand 7 and the anchor cable, and the operation mother ship 1 p...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
CPCG01L5/00
Inventor 杨学文韩荣贵吴迪苗得胜孙立强吕琳琳任重进
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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