[1]常方强,梁康康.海蚀槽发育导致的软质海崖滑塌计算与分析[J].华侨大学学报(自然科学版),2020,41(3):299-306.[doi:10.11830/ISSN.1000-5013.201904043]
　CHANG Fangqiang,LIANG Kangkang.Collapse Calculation and Analysis of Soft Sea Cliff Induced by Sea-Eroded Notch Development[J].Journal of Huaqiao University(Natural Science),2020,41(3):299-306.[doi:10.11830/ISSN.1000-5013.201904043]
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海蚀槽发育导致的软质海崖滑塌计算与分析()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第41卷
期数:
2020年第3期
页码:
299-306
栏目:
出版日期:
2020-05-20

文章信息/Info

Title:
Collapse Calculation and Analysis of Soft Sea Cliff Induced by Sea-Eroded Notch Development
文章编号:
1000-5013(2020)03-0299-08
作者:
常方强;  梁康康
华侨大学 岩土工程研究所, 福建 厦门 361021
Author(s):
CHANG Fangqiang;  LIANG Kangkang
Institute of Geotechnical Engineering, Huaqiao University, Xiamen 361021, China
关键词:
海蚀槽;  稳定分析;  软质海崖;  滑塌;  平潭岛
Keywords:
sea-eroded notch;  stability analysis;  soft sea cliff;  collapse;  Pingtan Island
分类号:
P753
DOI:
10.11830/ISSN.1000-5013.201904043
文献标志码:
A
摘要:
对福建省平潭岛东北部软质海崖进行现场调查和量测,在约1 km的岸线上发现9处滑塌,滑塌物的堆积距离、堆积高度和滑塌物体积均随海崖高度的增大而增大.滑塌包括剪切破坏和顶部破坏两种类型,剪切破坏的破坏面几乎完全垂直,顶部破坏的破坏面呈L形.针对这两种滑塌类型,分别建立理论计算模型.结果表明:经理论计算模型得到的海蚀槽最大槽深(蚀退距离)为0.51~1.30 m;海崖稳定性随槽深的增大而降低;海崖顶部破坏的滑塌临界水深为0.22~0.61 m.
Abstract:
The soft sea cliffs at northeast of Pingtan Island in Fujian Province are investigated and measured in situ. Nine collapses are found on the length of about 1 km cliffs. The deposition distance, deposition height and volume of collapse increase with cliff height. There are two types of collapse: shear failure and top failure. The failure surface of shear failure is almost vertical, and the failure surface of top failure is L-shaped. For both types of collapse, the theoretical calculation models are established. The results show the maximum depths of sea-eroded notch(retrograded distance)are 0.51-1.30 m calculated by the theoretical calculation models. The stability of cliffs decreases with the increase of the depths of sea-eroded notch. The critical water depth of collapse on the top of cliffs are 0.22-0.61 m.

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备注/Memo

备注/Memo:
收稿日期: 2019-04-24
通信作者: 常方强(1980-),男,副教授,博士,主要从事海岸与海洋工程地质的研究.E-mail:changfq@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(41306051)
更新日期/Last Update: 2020-05-20