scholarly journals THE BASIC EXAMINATION OF FIELD OBSERVATION VALUES OF WAVE RUN-UP HEIGHT FOR GENTLE-SLOPE SEA DIKE

1999 ◽  
Vol 15 ◽  
pp. 701-706
Author(s):  
Toshihiko TAKAHASHI ◽  
Atsushi NUMATA
Keyword(s):  
Field Observation ◽  
Gentle Slope ◽  
Run Up ◽  
Sea Dike ◽  
Basic Examination

scholarly journals Wave Run-Up on Mortar-Grouted Riprap Revetments

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3396
Author(s):  
Moritz Kreyenschulte ◽  
David Schürenkamp ◽  
Benedikt Bratz ◽  
Holger Schüttrumpf ◽  
Nils Goseberg
Keyword(s):  
Influence Factors ◽  
Video Data ◽  
Lidar Measurements ◽  
Subsequent Discussion ◽  
Porosity And Permeability ◽  
Run Up ◽  
Sea Dike ◽  
Crest Height ◽  
Sea Coast ◽  
North Sea Coast

The wave run-up height is a crucial design parameter that determines the crest height of a sea dike and is used for estimating the number of overtopping waves. Therefore, a reduction of the wave run-up height is generally aspired in the design of dikes, which can be achieved by mortar-grouted riprap revetments (MGRR). Although MGRRs are widely utilized revetments along the German North Sea coast, no investigations into the wave run-up height on this revetment type are available to date. Full-scale hydraulic model tests were hence conducted to investigate wave run-up heights on partially grouted and fully grouted MGRRs. The wave run-up was determined using 2D-LIDAR measurements, which were validated by video data. Partially grouted MGRRs, due to their roughness, porosity, and permeability, reduce wave run-up heights from 21% to 28%, and fully grouted MGRRs due to their roughness reduce wave run-up heights from 12% to 14% compared to smooth impermeable revetments. Influence factors have been determined for four widely used revetment configurations, which can now be used for design purposes. A comparison and subsequent discussion about the representation of the physics of wave run-up by different parameters is carried out with the results presented.

scholarly journals Wave run-up of a possible Anak-Krakatau tsunami on planned and optimized Jakarta Sea Dike

2017 ◽  
Author(s):  
M. R. Badriana ◽  
H. Bachtiar ◽  
D. Adytia ◽  
L. Sembiring ◽  
Andonowati ◽  
...  
Keyword(s):  
Run Up ◽  
Sea Dike

Optimasi desain rencana tanggul lepas pantai NCICD di Teluk Jakarta terhadap kemungkinan tsunami akibat letusan Gunung Anak Krakatau

2017 ◽  
Vol 13 (1) ◽  
pp. 1-10
Author(s):  
Huda Bachtiar ◽  
Riam Badriana ◽  
Leo Sembiring ◽  
Didit Adytia ◽  
I Putu Samskerta ◽  
...  
Keyword(s):  
Wave Equation ◽  
Wave Interaction ◽  
Optimized Design ◽  
Master Plan ◽  
Optimum Form ◽  
Explosion Wave ◽  
The Future ◽  
Wave Effects ◽  
Run Up ◽  
Sea Dike

The infrastructural plans in the Jakarta Bay to reduce risks of flooding in Jakarta city comprise a large sea dike that encloses a retention lake. Part of the planned dike has the shape of the iconic Garuda bird. This shape is based on NCICD Stage-B Master Plan, where the form shape has not been tested on hydraulic perspective. Therefore, testing of wave run-up has been investiagated to find the optimum form of the Garuda Shape. The simulation of wave run-up uses Hawassi Model, where the model is governed by Boussinesq wave equation with considering wave-wave interaction. This paper shows that if in the future an explosion of Anak Krakatau will occur with strength 1/4th of the original Karkatau 1883 explosion, wave crests of 11m and troughs of 6m may collide against the birds head. As an alternative example, a more optimized design of the dike is constructed that reduces the maximal wave effects considerably.

scholarly journals Field Observation of Long-period Waves in Hitachi Port as a Cause of Wave Run-up in River Channel

2008 ◽  
Vol 55 ◽  
pp. 211-215
Author(s):  
Yasutsugu KANDA ◽  
Takaaki UDA ◽  
Tetsuya HIRAISHI ◽  
Atsushi ITO ◽  
Toru WATANABE ◽  
...  
Keyword(s):  
Field Observation ◽  
River Channel ◽  
Long Period ◽  
Run Up

Run-Up Height and Period of Irregular Waves on Gentle Slope

1983 ◽  
Vol 26 (1) ◽  
pp. 163-174 ◽  
Author(s):  
Toru Sawaragi ◽  
Koichiro Iwata ◽  
Wataru Nobuta
Keyword(s):  
Irregular Waves ◽  
Gentle Slope ◽  
Run Up

scholarly journals A numerical study of tsunami wave run-up and impact on coastal cliffs using a CIP-based model

2017 ◽  
Author(s):  
Xizeng Zhao ◽  
Yong Chen ◽  
Zhenhua Huang ◽  
Yangyang Gao
Keyword(s):  
Incident Wave ◽  
Tsunami Wave ◽  
Numerical Study ◽  
Tsunami Source ◽  
Solid Boundary ◽  
Wave Impact ◽  
Gentle Slope ◽  
Coastal Cliffs ◽  
Run Up ◽  
The Impact

Abstract. There is a general lack of the understanding of tsunami wave interacting with complex geographies, especially the process of inundation. Numerical simulations are performed to understand the effects of several factors on tsunami wave impact and run-up in the presence of submarine gentle slopes and coastal cliffs, using an in-house code, named a Constrained Interpolation Profile (CIP)-based model in Zhejiang University (CIP-ZJU). The model employs a high-order finite difference method, the CIP method as the flow solver, utilizes a VOF-type method, the Tangent of hyperbola for interface capturing/Slope weighting (THINC/SW) scheme to capture the free surface, and treats the solid boundary by an immersed boundary method. A series of incident waves are arranged to interact with varying coastal geographies. Numerical results are compared with experimental data and good agreement is obtained. The influences of submarine gentle slope, coastal cliff and incident wave height are discussed. It is found that the rule of tsunami amplification factor varying with incident wave is affected by angle of cliff slope, and there is a critical angle about 45°. The run-up on a toe-erosion cliff is smaller than that on a normal cliff. The run-up is also related to the length of submarine gentle slope with a critical about 2.292 m in the present study. The impact pressure on the cliff is extremely large and concentrated, and the backflow effect is nonnegligible. Results of our work are in high precision and helpful in inversing tsunami source and forecasting disaster.

Run-up of internal waves on a gentle slope in a two-layered system

1988 ◽  
Vol 191 (-1) ◽  
pp. 419 ◽  
Author(s):  
B. C. Wallace ◽  
D. L. Wilkinson
Keyword(s):  
Internal Waves ◽  
Layered System ◽  
Gentle Slope ◽  
Run Up
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