Experimental Study on Punch-through Phenomenon of Spud-can in Clay under Discontinuous Loading

被引：0
|
作者：
Li Z. [1 ]
Xu W. [1 ]
机构：
[1] College of Civil Engineering, Hunan University, Changsha
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2019年 / 46卷 / 09期
关键词：
Clay; Marine platform; Punch-through; Spud-can; Waiter jetting;
D O I：
10.16339/j.cnki.hdxbzkb.2019.09.012
中图分类号：
学科分类号：
摘要：
In order to solve the punch-through problem of the Jack-up platform in the soft clay area such as the South China Sea, the punch-through phenomenon of the Jack-up platform when penetrating in clay was verified by experiment, and the mechanism and solution for the punch-through were explored. In this paper, an experimental set for single leg penetration test under discontinuous loading was designed to simulate the preloading process of a real Jack-up platform with large spud-can, and a series experiments were performed to investigate the effect of the water jetting process for eliminating the risk of punch-through. The results show that the punch-through can occur in the clay layer under discontinuous loading, and the risk of the punch-through can be mitigated by reducing the loading rate or performing water jetting process. Thus, the present investigation is beneficial for safety operation of the jack-up platform in practice. © 2019, Editorial Department of Journal of Hunan University. All right reserved.
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页码：108 / 114
页数：6
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