River bank protection from ship-induced waves and river flow

River management implies in many situation to control the river bank stability. Bio-engineering techniques are used as an alternative to rip-rap. These techniques are not new but a renewed interest was observed during the last decade. However the design of such bank protection is still largely based an expert evaluation of each situation, and we still crudely lack a real state of the art, based on mechanistic consideration of forces exerted by the river. We present the results of preliminary flume experiments aiming to study the resistance of river bank protections using bio-engineering techniques. The final applied objectives will be to propose a framework for a good use of such technique, accounting for the river morphodynamics context.

Download Full-text

Discussion of “River bank protection with porcupine systems: development of rational design methodology” by Mohammad Aamir and Nayan Sharma (2015)

ISH Journal of Hydraulic Engineering ◽

10.1080/09715010.2015.1067576 ◽

2015 ◽

Vol 22 (1) ◽

pp. 68-69

Author(s):

S.K. Mazumder

Keyword(s):

Design Methodology ◽

Rational Design ◽

Systems Development ◽

River Bank ◽

Bank Protection

Download Full-text

Application of ecohydraulic bank protection model to improve river bank stability and biotic community in Surabaya River

Journal of Degraded and Mining Lands Management ◽

10.15243/jdmlm.2017.051.975 ◽

2017 ◽

Vol 05 (01) ◽

pp. 975-986

Author(s):

Daru Setyo Rini ◽

◽

Endang Arisoesilaningsih ◽

Donny Harisuseno ◽

S Soemarno

Keyword(s):

Bank Stability ◽

Biotic Community ◽

River Bank ◽

Bank Protection

Download Full-text

Discharge estimation in a backwater affected meandering river

Hydrology and Earth System Sciences Discussions ◽

10.5194/hessd-8-2667-2011 ◽

2011 ◽

Vol 8 (2) ◽

pp. 2667-2697 ◽

Cited By ~ 2

Author(s):

H. Hidayat ◽

B. Vermeulen ◽

M. G. Sassi ◽

P. J. J. F. Torfs ◽

A. J. F. Hoitink

Keyword(s):

River Flow ◽

Discharge Rate ◽

River Mouth ◽

Level Gauge ◽

River Bank ◽

Surface Level ◽

Meandering River ◽

Discharge Variation ◽

Adcp Data ◽

Discharge Estimation

Abstract. Variable effects of backwaters complicate the development of rating curves at hydrometric measurement stations. In areas influenced by backwater, single-parameter rating curve techniques are often inapplicable. To overcome this, several authors have advocated the use of an additional downstream level gauge to estimate the longitudinal surface level gradient, but this is cumbersome in a lowland meandering river with considerable transverse surface level gradients. Recent developments allow river flow to be continuously monitored through velocity measurements with an acoustic Doppler current profiler (H-ADCP), deployed horizontally at a river bank. This approach was adopted to obtain continuous discharge estimates at a cross-section in the River Mahakam at a station located about 300 km upstream of the river mouth in the Mahakam delta. The discharge station represents an area influenced by variable backwater effects from lakes, tributaries and floodplain ponds, and by tides. We applied both the standard index velocity method and a recently developed methodology to obtain a continuous time-series of discharge from the H-ADCP data. Measurements with a boat-mounted ADCP were used for calibration and validation of the model to translate H-ADCP velocity to discharge. As a comparison with conventional discharge estimation techniques, a stage-discharge relation using Jones formula was developed. The discharge rate at the station exceeded 3300 m3 s−1. Discharge series from a traditional stage-discharge relation did not capture the overall discharge dynamics, as inferred from H-ADCP data. For a specific river stage, the discharge range could be as high as 2000 m3 s−1, which is far beyond what could be explained from kinematic wave dynamics. Backwater effects from lakes were shown to be significant, whereas the river-tide interaction may impact discharge variation in the fortnightly frequency band. Fortnightly tides cannot easily be isolated from river discharge variation, which features similar periodicities.

Download Full-text

OPTIMIZATION OF RIVER BANK PROTECTION DESIGN BY DISCRETE ELEMENT METHOD

14th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING ◽

10.5593/sgem2014/b12/s2.087 ◽

2014 ◽

Author(s):

Adrian Priceputu

Keyword(s):

Discrete Element Method ◽

Discrete Element ◽

River Bank ◽

Bank Protection ◽

Element Method

Download Full-text

Potensi Endapan Pasir Besi di Daerah Grabag dan Sekitarnya Berdasarkan Data Geomagnet

Jurnal Geologi dan Sumberdaya Mineral ◽

10.33332/jgsm.geologi.20.2.75-83 ◽

2019 ◽

Vol 20 (2) ◽

pp. 75 ◽

Cited By ~ 1

Author(s):

G.M. Lucki Junursyah ◽

Wanda Rahmat

Keyword(s):

Cross Sections ◽

River Flow ◽

Magnetic Anomalies ◽

Research Area ◽

Environmental Damage ◽

Mining Activities ◽

River Bank ◽

Central Java ◽

Reduction To The Pole ◽

Potential Area

The potential of iron sand in Grabag area and its surrounding, Central Java Province, is not fully known yet because it is covered by thick alluvium, so that mining activities are done unmanaged without seeing the effect of environmental damage caused. This study uses reduction to the pole and upward continuation processing and analysis for Geomagnetic data in order to spread of lateral magnetic anomalies (map) and forward modelling for vertical magnetic anomalies (2D cross-sections). Based on the dispersion of magnetic anomaly, it is known that iron sand potential in the research area is located on old alluvium deposits with depth around 60 m and young coast alluvium sedimentation with depth around of 20 m, forming a lens as sand dump or river bank, followed by lane of ancient river flow pattern with thickness reaching ±10 m. The potential area is estimated to reach 26,329,188 m² with the calculation of hypothetical reserves reaching 69,575 Ton on the southwest and 5,880, 213 Ton in the northwest of the research area. The results of this study are expected to be used as reference for further research, so that it can menage iron sand mining activities more regularly and not caused environmental damaged.Keywords: Geomagnetic, Iron Sand, Alluvium.

Download Full-text