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<br />r-- <br />~ <br />If' <br />"'. \ <br />".. <br /> <br />c <br /> <br />CONTENTS (Continued) <br /> <br />SIMILARITY RESULTS, PRELIMINARY DRUM GATE MODELS <br /> <br />SEC'fION pAGE <br />59. Visual results, G-4 and M-3 mod.ls............................................................ IID <br />60. Quantitative results, models C-4, M-3, and M-4m.......mnU.hhu...........mn 113 <br /> <br />CHAPTER IV-MODELS OF FINAL SPILLWAY DESIGN <br /> <br />FINAL DESIGN TESTS <br /> <br />61. Gener.l ................. ...................................................... ....................... 121 <br />62. Program of tests...n............................................... ..........,........_.__........._.....n. 121 <br />63. Models M-5, C-5, .nd C-6.......................................... ..................................... 122 <br /> <br />SIMILARITY CONDITIONS <br />64. Visual results, M -5, C-5, and C-6 models.................................................... 127 <br />65. Quantitative results, M-5, C-5, and C-6 models. hum.. m...mm................. 133 <br /> <br />MISCELLANEOUS TESTS <br />66. Shape of downstream end of crest piers....................."mm....................... 146 <br />67. Baffle at upper end of channeL...n,......... ...........__......................m.. 147 <br />68. Gate opening program............hhmn....hh.mm.........nmm.'.................mm.m.. 148 <br /> <br />CHAPTER V-FLOW IN SPILLWAY TUNNELS <br /> <br />TRANSITION SECTION <br /> <br />69. Gener.l ............................................................................................................... 153 <br />70. Piezometer measurements ..........m.n'nu.....m......m..m...mmu................m.nu 153 <br /> <br />FLOW AT BENDS <br /> <br />71. Vertic.l bend-I:6D sc.le................................................................................ 154 <br />72. Horizontal bend ................................................................................................ 156 <br /> <br />CHAPTER VI-EROSION OF CONCRETE BLOCKS <br />UNDER HIGH VELOCITIES <br /> <br />73. Nature of tests.....u.u..............u...u...m...................n.m.u..........m..u....n.......... 163 <br /> <br />MATERIALS, TEST BLOCKS, EQUIPMENT, AND TESTS <br /> <br />74. M.teri.ls ............................................................................................................ 163 <br />75. T.st blocks ........................................................................................................ 164 <br />76. Test app.ratus ................................................................................................ 167 <br />77. Tests .................................................................................................................... 167 <br /> <br />TEST RESULTS AND TlfEIR APPLICATION <br /> <br />78. Test results ...................................................................................................... 169 <br />79. Applic.tion to Boulder D.m spillways........................................................ 173 <br />3 <br />