SUSTAINABLE DESILTING OF DAMS

B. REMINI

Abstract


The recovery of mud is the only way to solve the problem of silting up dams. At the beginning of the 1990s, we studied the recovery of mud from a dozen dams in construction and agricultural fields. In the case where the destination of the silt is known thanks to the chemical, physical and mineralogical analyses, the desiltation is carried out in a continuous way; in this case, we speak of sustainable desilting. This is what this paper discusses for the first time. Sustainable desilting consists of equipping the dam with one or more dredges that continuously remove silt. Once the mud is discharged and then stored in basins built upstream of the dam, the water returns to the reservoir. Once dried, the mud is transported to its place of use, but preferably in the agricultural field.


Keywords


Dam, Siltation, Sustainable desilting, Valorisation of the silt, Hydraulic dredging.

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References


DEMMAK A. (1982). Contribution to the study of erosion and solid transport in northern Algeria, Doctor of Engineering Thesis. University of Pierre and Marie Curie, Paris XI, France.

LABIOD Z., REMINI B., BELAREDJ M. (2004). Treatment of mud from the Bouhanifia dam with a view to its recovery, Larhyss Journal, No 3, pp.7-12.

REMINI B. (1997). Siltation of dams in Algeria – Mechanisms and means of control by the technique of withdrawal. March, State Doctorate Thesis, National Polytechnic School of Algiers, March, 342 p.

REMINI B. (2017). A new approach to dam siltation management, Larhyss Journal, No 31, pp. 51-81.

REMINI B., BENSAFIA D. (2016). Siltation of dams in arid regions, Algerian examples, Larhyss Journal, No 27, pp. 63-90.

REMINI B. (2008). Raising dams : a technique to combat siltation, Algerian examples, Revue Internationale La Houille Blanche, No 5.

REMINI B. (2006). Valorization of silt from dams: some Algerian examples, Larhyss Journal, No 5, pp.75-89.

REMINI B., HALLOUCHE O. (2004). Dam dredging: Some Algerian examples, Revue Internationale la Houille Blanche No 3, October.

REMINI B, KENAI S. (2000). Valorization of the mud of the Oued Lekhel dam for the manufacture of bricks, Moroccan Journal of Civil Engineering, No 90, Nov/Dec., pp.36-41.

REMINI B., BENSAFIA D., MEKHATRI A. (2018). Sidi M’hamed Ben Aouda’s dam (Algeria): acceleration to the silting! Larhyss Journal, No 33, March, pp. 221-252.

REMINI B. (2019). ALGERIA: Mud at the bottom of the dams, what to do? Larhyss Journal, No 40, pp. 213-247.

REMINI B. (2020). Algeria: the climate is changing, the water is becoming scarce, what to do? Larhyss Journal, No 41, pp. 181-221.


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