Failure envelops analysis for square mudmat foundations on undrained clays under three-dimensional loading. (17th December 2021)

• Record Type: Journal Article
• Authors: Liu, Meng-meng; Liu, Run; Wang, Le
• Is Part Of: Ships and offshore structures. Volume 16(2021)Supplement 2
• Page Start: 77
• Page End: 84
• Publication Date: 2021-12-17
• Subjects: Subsea production system -- mudmat foundation -- combined load -- failure envelop -- clay; Ships -- Periodicals; Offshore structures -- Periodicals; Marine engineering -- Periodicals; Marine engineering -- Technological innovations -- Periodicals; Ocean engineering -- Periodicals; Ocean engineering -- Technological innovations -- Periodicals; 623.8
• DOI: 10.1080/17445302.2021.1906192
• Languages: English
• ISSNs: 1744-5302

Abstract

ABSTRACT: As the permanent submarine support structures for subsea wells, pipeline manifolds and pipeline terminations, the mudmat foundation works under obviously complex, nonlinear and uncertain loading, which makes a great challenge for the research of the stability of mudmat foundation. In this paper, finite element method is utilised to investigate the behaviour of square mudmat foundation without embedment in NC clay to fully 3D loading conditions: V - H - M and V - H - T . According to the analysis results, the relevant failure envelop surfaces and formulas are proposed to predict the capacity of mudmat foundation. These results could be treated as reference for the design work of the mudmat foundation.