亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Lituya Bay Case Rockslide Impact and Wave Run-up

岩滑 地质学 陆上 弗劳德数 水线 地震学 地貌学 山崩 海洋学 流量(数学) 机械 船体 物理
作者
Hermann M. Fritz
链接
摘要

On July 8, 1958, an 8.3 magnitude earthquake along the Fairweather fault triggered a major subaerial rockslide into Gilbert Inlet at the head of Lituya Bay on the South coast of Alaska. The rockslide impacted the water at high speed creating a giant nonlinear wave and the highest wave run-up in recorded history. The soliton like wave ran up to an altitude of 524 m causing forest destruction and erosion down to bedrock on a spur ridge in direct prolongation of the slide axis. Total area between trimline of forest destruction on shores of Lituya Bay and high-tide shoreline covered about 10 km*. A cross-section of Gilbert Inlet was rebuilt at 1:675 scale in a two-dimensional physical laboratory model at VAW. The subaerial rockslide impact into Gilbert Inlet, wave generation, propagation and run-up on headland slope were considered in a geometrically undistorted Froude similarity model. A novel pneumatic landslide generator was used to generate a high-speed granular slide with controlled impact characteristics. State-of-the-art laser measurement techniques such as particle image velocimetry (PIV) and laser distance sensors (LDS) were applied to the decisive initial phase with rockslide impact and wave generation. PIV-measurements of wave run-up on headland slope were conducted to complement wave and run-up gage records. PIV provided instantaneous velocity vector fields in a large area of interest and gave insight into kinematics of wave generation and run-up. The whole process of a high speed granular slide impact may be subdivided into two main stages: a) Rockslide impact and penetration with flow separation, cavity formation and wave generation, and b) air cavity collapse with rockslide run-out and debris detrainment causing massive phase mixing. Impact stages overlap and their transition from wave generation to propagation and run-up is fluent. Formation of a large air cavity similar to an asteroid impact in the back of the rockslide is highlighted. The laboratory experiments confirm that the 1958 trimline of forest destruction on Lituya Bay shores was carved by a giant rockslide generated impulse wave. The measured wave run-up perfectly matches the trimline of forest destruction on the spur ridge at Gilbert Inlet. Back-calculation of wave height from observed trimline of forest destruction using Hall and Watts (1953) run-up formula equals measured wave height in Gilbert Inlet. PIV-measurements of wave run-up indicate that enough water ran up the headland slope to cause the flooding observed in Lituya Bay as estimated by Mader (1999) with numerical simulations of the whole Lituya Bay. ’ Research Engineer, VAW, ETH-Zentrum, CH-8092, Switzerland 2 Professor, VAW, ETH-Zentrum, CH-8092, Switzerland ’ Professor, Director of VAW, ETH-Zentrum, CH-8092, Switzerland Science of Tsunami Hazards, Vol 19, NO. 1 (2801) page 3
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
8秒前
祖之微笑发布了新的文献求助10
13秒前
量子星尘发布了新的文献求助10
18秒前
24秒前
47秒前
53秒前
1分钟前
1分钟前
33应助可靠的寒风采纳,获得20
1分钟前
量子星尘发布了新的文献求助10
1分钟前
1分钟前
JamesPei应助背后梦安采纳,获得10
1分钟前
2分钟前
祖之微笑发布了新的文献求助10
2分钟前
祖之微笑完成签到,获得积分10
2分钟前
2分钟前
Magali发布了新的文献求助10
2分钟前
2分钟前
3分钟前
3分钟前
shinian完成签到,获得积分10
3分钟前
shinian发布了新的文献求助10
3分钟前
3分钟前
3分钟前
哈尔滨发布了新的文献求助10
3分钟前
背后梦安发布了新的文献求助10
3分钟前
量子星尘发布了新的文献求助10
3分钟前
3分钟前
zhen完成签到,获得积分10
4分钟前
哈尔滨完成签到,获得积分20
4分钟前
4分钟前
米奇妙妙屋完成签到,获得积分10
4分钟前
tylscxf完成签到,获得积分10
4分钟前
YifanWang完成签到,获得积分0
4分钟前
量子星尘发布了新的文献求助30
5分钟前
5分钟前
启震发布了新的文献求助10
5分钟前
5分钟前
5分钟前
5分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3976649
求助须知:如何正确求助?哪些是违规求助? 3520756
关于积分的说明 11204743
捐赠科研通 3257502
什么是DOI,文献DOI怎么找? 1798733
邀请新用户注册赠送积分活动 877897
科研通“疑难数据库(出版商)”最低求助积分说明 806629