SMALL DAMS

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Chapter VII SURVEILLANCE Surveillance is obligatory for any structure with an impact on dam safety. It is also vital for other structures and proves economically cost-effective as it makes it possible to establish a regular maintenance program: !"to ensure a long service life of the structure; !"to avoid major rehabilitation work that would be inevitable after a long period of slow irreversible deterioration. Surveillance should be organised by the owner on the basis of clear, simple instructions, and should make it easy to monitor the dam's behaviour. TRAINING - AWARENESS The quality of the visual observations, and therefore dam safety, can only be achieved by sufficient motivation and some technical training for the personnel involved. FOR NEW <strong>DAMS</strong> In addition to the as-built documents, it is important that a report on first reservoir filling be drafted. Furthermore, any dam should be designed to facilitate maintenance operations and inspections. 169
L ife of the dam BIBLIOGRAPHY 1 - Circulaire interministérielle du 14 août 1970. 2 - La surveillance et l’entretien des petits barrages - guide pratique, 1994, Cemagref Aix-en-Provence, 87 p. 3 - Sécurité des barrages en service, session de formation continue ENGREF, Montpellier, mai 1993, Édition ENGREF-CEMAGREF, 250 p. 170
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FRENCH COMMITTEE ON LARGE DAMS COMI
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PHOTOGRAPH REFERENCES Cover: CACG,
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M E M B E R S O F T H E R E A D I N
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TABLE OF CONTENTS Foreword - What n
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Table of contents FILL DAM DESIGN..
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Table of contents Chap. VII - Life
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W hat need for guidelines for small
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W hat need for guidelines for small
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C hoice of site and type of dam TOP
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C hoice of site and type of dam AVA
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C hoice of site and type of dam CON
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P reliminary determination of desig
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G eological and geotechnical studie
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F ill dams GEOTECHNICAL STUDIES 68
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F ill dams For fill, the wetter the
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F ill dams 72 If the latter is unal
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F ill dams As concerns freeboard R,
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F ill dams Wave height h (m) Thickn
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F ill dams In the case of a widely
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F ill dams Fig. 3 - Sloped granular
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F ill dams It is therefore necessar
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F ill dams The selected profile sho
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F ill dams 86 Case of compressible
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F ill dams In present practice, the
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F ill dams MONITORING SYSTEM 1 The
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F ill dams The most common measurem
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F ill dams 94 When H 2 V > 30, the
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F ill dams DESIGN OF THE FREE OVERF
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F ill dams 98 In the case of very w
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F ill dams TENDERING AND DAM CONSTR
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F ill dams In the case of a rock fo
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F ill dams However, when the materi
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F ill dams All of the inspections m
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F ill dams SPECIFIC FEATURES OF VER
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F ill dams !"engineering costs. The
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▲ 1 - Compacting clay in the cut-
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▲ 7 - Scarification after passage
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▲ 12 - Rip-rap on a dam built for
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▼ 20 - Overspill part of a side i
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C H A P T E R V Small concrete dams
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Chapter V Arch dams Arch dams trans
Page 123 and 124: Chapter V Masonry dams are no longe
Page 125 and 126: Chapter V Finally, the slope of the
Page 127 and 128: Chapter V FOUNDATION TREATMENT Hydr
Page 129 and 130: Chapter V and account will be taken
Page 131 and 132: Chapter V Thrust of ice This force
Page 133 and 134: Chapter V The commonly accepted cri
Page 135 and 136: Chapter V MONITORING SYSTEMS The ge
Page 137 and 138: Chapter V The typical cross-section
Page 139 and 140: Chapter V LOUBERRIA DAM Louberria d
Page 141 and 142: Chapter V Some of these barrages, a
Page 143 and 144: Chapter V Fig. 8 - Dam with a tilti
Page 145 and 146: Chapter V BIBLIOGRAPHY 1 - Ministè
Page 147 and 148: M anagement of water quality EUTROP
Page 149 and 150: M anagement of water quality !"the
Page 151 and 152: M anagement of water quality Proces
Page 153 and 154: M anagement of water quality 148 Al
Page 155 and 156: M anagement of water quality While
Page 157 and 158: M anagement of water quality It con
Page 159 and 160: M anagement of water quality It sho
Page 161 and 162: M anagement of water quality These
Page 163 and 164: 4. Grégoire (A.), 1987- Caractéri
Page 165 and 166: L ife of the dam SPECIAL FEATURES O
Page 167 and 168: L ife of the dam GENERAL SURVEILLAN
Page 169 and 170: L ife of the dam ORGANISATION OF SU
Page 171 and 172: L ife of the dam During such period
Page 173: L ife of the dam MAINTENANCE 168 Th
Page 177 and 178: C onclusion FLOOD DATA It is fairly
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