内外夹持式变径海洋基桩吊具夹持机理研究

doi:10.16039/j.cnki.cn22-1249.2020.01.012

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摘要

大型海洋基桩的起吊作业是海洋结构物施工建设工程中的一大难题。针对这一现状，本文以IHC公司的双边海洋基桩吊具为蓝本，提出一种内外夹持式变径海洋基桩吊具的结构方案。针对本文提出的吊具结构形式，通过理论求解，仿真分析以及实验研究等方法，分别对吊具的摩擦夹紧以及楔块齿嵌入夹紧两种夹紧方式进行了深入研究与对比分析，获得了在相同横向夹紧载荷作用下，吊具楔块齿嵌入夹紧方式的承载能力为摩擦夹紧方式的3倍这一结论，为实际工程应用中吊具夹紧方式的选择提供了参考。

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	王昆
	王茁
	王毅坚

关键词: 海洋基桩大型吊具夹持承载机理楔块嵌入性能塑性变形仿真

Abstract:

Lifting operation of large-scale offshore foundation piles is a difficult problem in the construction of offshore structures. In view of this situation, this paper takes IHC Company’s bilateral marine foundation pile hanger as the blueprint, and puts forward a structural scheme of "internal and external clamping type marine pile spreader" in order to improve the problems mentioned above. Aiming at the structure form of suspension proposed in this paper, by means of theoretical solution, simulation analysis and experimental research, the friction clamping and wedge tooth insertion clamping methods of suspension were studied and compared, and the bearing capacity of wedge tooth insertion clamping method of suspension is three times that of friction clamping method under the same transverse clamping load. The conclusion provides a reference for the selection of clamping mode of hanger in practical engineering application.

Key words: marine foundation pile large-scale spreader clamping and load-bearing mechanism wedge embedding performance plastic deformation simulation

出版日期: 2020-01-25 发布日期: 2020-01-25 整期出版日期: 2020-01-25

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引用本文:

王昆, 王茁, 王毅坚. 内外夹持式变径海洋基桩吊具夹持机理研究 [J]. 吉林化工学院学报, 2020, 37(1): 52-57.
WANG Kun, WANG Zhuo, WANG Yijian. Study on the Internal and External Clamping Type Marine Pile Spreader with Changeable Diameter and Analysis of the Clamping Mechanism . Journal of Jilin Institute of Chemical Technology, 2020, 37(1): 52-57.

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http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2020.01.012 或 http://xuebao.jlict.edu.cn/CN/Y2020/V37/I1/52

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