- Title
- Modelling coastal cliff recession based on the GIM-DDD method
- Creator
- Gong, Bin; Wang, Shanyong; Sloan, Scott William; Sheng, Daichao; Tang, Chun’an
- Relation
- ARC.FT140100019 http://purl.org/au-research/grants/arc/FT140100019
- Relation
- Rock Mechanics and Rock Engineering Vol. 51, Issue 4, p. 1077-1095
- Publisher Link
- http://dx.doi.org/10.1007/s00603-017-1382-0
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2018
- Description
- The unpredictable and instantaneous collapse behaviour of coastal rocky cliffs may cause damage that extends significantly beyond the area of failure. Gravitational movements that occur during coastal cliff recession involve two major stages: the small deformation stage and the large displacement stage. In this paper, a method of simulating the entire progressive failure process of coastal rocky cliffs is developed based on the gravity increase method (GIM), the rock failure process analysis method and the discontinuous deformation analysis method, and it is referred to as the GIM–DDD method. The small deformation stage, which includes crack initiation, propagation and coalescence processes, and the large displacement stage, which includes block translation and rotation processes during the rocky cliff collapse, are modelled using the GIM–DDD method. In addition, acoustic emissions, stress field variations, crack propagation and failure mode characteristics are further analysed to provide insights that can be used to predict, prevent and minimize potential economic losses and casualties. The calculation and analytical results are consistent with previous studies, which indicate that the developed method provides an effective and reliable approach for performing rocky cliff stability evaluations and coastal cliff recession analyses and has considerable potential for improving the safety and protection of seaside cliff areas.
- Subject
- cliff collapse; rock failure; whole-process analysis; gravity increase method; numerical simulation
- Identifier
- http://hdl.handle.net/1959.13/1403113
- Identifier
- uon:35102
- Identifier
- ISSN:0723-2632
- Rights
- This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s00603-017-1382-0
- Language
- eng
- Full Text
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