A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deterioration problems for concrete and masonry dams in Italy
In this report the most important problems relative to the deterioration affecting concrete and masonry dams in Italy are presented. The first topic is the deterioration of the body of the dam by the watertightness properties of the older dams, where the original permeability of the body initiates the deterioration phenomena, especially in masonry dams. The sonic tomography techniques are employed in diagnostic; repair measures are mainly based on renewal of upstream faces. The second problem is cracking in the concrete blocks of many dams of buttress and hollow gravity type. Important stabilizing interventions have to be adopted only when the deformability of the foundation rocks became prominent. A third topic covers the loosening phenomenon which occurs in the rock at upstream toe of some archgravity dams with a subsequent deterioration of the curtain. The repair measures consist in regrouping the curtain under conditions of maximum water level and in integrating the drainage system. In the most delicate cases grouting injections carried out for stepped up water levels has been considered to be more effective.
Deterioration problems for concrete and masonry dams in Italy
In this report the most important problems relative to the deterioration affecting concrete and masonry dams in Italy are presented. The first topic is the deterioration of the body of the dam by the watertightness properties of the older dams, where the original permeability of the body initiates the deterioration phenomena, especially in masonry dams. The sonic tomography techniques are employed in diagnostic; repair measures are mainly based on renewal of upstream faces. The second problem is cracking in the concrete blocks of many dams of buttress and hollow gravity type. Important stabilizing interventions have to be adopted only when the deformability of the foundation rocks became prominent. A third topic covers the loosening phenomenon which occurs in the rock at upstream toe of some archgravity dams with a subsequent deterioration of the curtain. The repair measures consist in regrouping the curtain under conditions of maximum water level and in integrating the drainage system. In the most delicate cases grouting injections carried out for stepped up water levels has been considered to be more effective.
Deterioration problems for concrete and masonry dams in Italy
R. Paolina (author) / M. Appendino (author) / E. Baldovin (author) / M. Berra (author) / A. Bianchini (author)
1990
66 pages
Report
No indication
English
Civil Engineering , Construction Equipment, Materials, & Supplies , Dams , Italy , Concretes , Aging , Concrete Blocks , Crack Propagation , Experimental Data , Materials Testing , Quality Control , Safety , Tomography , Meetings , Tables(data) , Foreign technology , EDB/130800 , EDB/420500 , EDB/570000 , EDB/440700
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| Engineering Index Backfile | 1949
Facing of masonry and concrete dams
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