The Cemented Material Dam (CMD) is defined as a series of new dam types utilizing cementitious binder together with various natural or manufactured materials in the construction of a dam. The principles used to design the dam section are different from those used in conventional gravity, rockfill and embankment dams. CMD dams offer the possibility to build dams safely, quickly and economically in an environment-friendly way, to decrease the risk of overtopping failure and the associated flood caused as much as possible, as well as to adapt, in some of the CMD types of dams, conventional "concrete" gravity dam design to foundation conditions usually not acceptable for concrete gravity dam structures. CMD is still in an early stage of development. Further optimization is needed in material preparation, structural design and construction processes to achieve a more uniform level of safety, a cheaper way to build dams with respect to different local materials, and a faster way of construction for different dam foundations.
ICOLD Bulletin 195 is the second of a series of planned bulletins, and introduces material properties (binders, soils), properties of cemented soil, structural design of a Cemented Soil Dam (CSD), investigation, construction, quality control and performance.
Le barrage en mat�riaux ciment�s (CMD) est d�fini comme une s�rie de nouveaux types de barrages utilisant un liant cimentaire ainsi que divers mat�riaux naturels ou manufactur�s dans la construction d'un barrage. Les principes utilis�s pour concevoir la section du barrage sont diff�rents de ceux utilis�s dans les barrages-poids, en enrochement et en remblai conventionnels. Les barrages CMD offrent la possibilit� de construire des barrages de mani�re s�re, rapide et �conomique dans le respect de l'environnement, de r�duire autant que possible le risque de rupture de franchissement et les inondations associ�es provoqu�es, ainsi que de s'adapter, dans certains des types de CMD. Pour les barrages, la conception conventionnelle des barrages-poids en b�ton r�pond � des conditions de fondation g�n�ralement inacceptables pour les structures de barrages-poids en b�ton. CMD en est encore � ses premiers stades de d�veloppement. Une optimisation plus pouss�e est n�cessaire dans la pr�paration des mat�riaux, la conception structurelle et les processus de construction pour atteindre un niveau de s�curit� plus uniforme, une mani�re moins co�teuse de construire des barrages par rapport aux diff�rents mat�riaux locaux et une m�thode de construction plus rapide pour les diff�rentes fondations des barrages.
ICOLD Bulletin 195 est le deuxi�me d'une s�rie de bulletins pr�vus et pr�sente les propri�t�s des mat�riaux (liants, sols), les propri�t�s du sol ciment�, la conception structurelle d'un barrage en sol ciment� (CSD), l'enqu�te, la construction, le contr�le qualit� et les performances.
The Commission Internationale des Grands Barrages (CIGB) / International Commission on Large Dams (ICOLD) is a non-governmental International Organization which provides a forum for the exchange of knowledge and experience in dam engineering.
The Organization leads the profession in ensuring that dams are built safely, efficiently, economically, and without detrimental effects on the environment. Its original aim was to encourage advances in the planning, design, construction, operation, and maintenance of large dams and their associated civil works, by collecting and disseminating relevant information and by studying related technical questions.
Since the late sixties, focus was put on subjects of current concern such as dam safety, monitoring of performance, reanalysis of older dams and spillways, effects of ageing and environmental impact. More recently, new subjects include cost studies at the planning and construction stages, harnessing international rivers, information for the public at large, and financing.
