PROCTOR

PROCTOR 16.12. 1894 Grayslake IL/USA 12.10. 1962 Los Angeles CA/USA Ralph Roscoe Proctor was educated at University of Southern California, Los Angeles CA, from 1914 to 1916. After war service in France, he returned to the employ of the Los Angeles Department of Water and Power. From 1933 until his retirement in 1959, he was in charge of the design, the construction, and maintenance of all dams in the Water System. He also served as consultant on dams and soil stability problems for the Metropolitan Water District of Southern California, the Los Angeles County Flood Control District, the Greybull Irrigation District, or the Tidewater Oil Company. He was a member of the American Water Works Association AWWA, and of the American Society of Civil Engineers ASCE, whose Fellow he was from 1959. Proctor wrote a series of articles describing his theories on soil compaction control in 1933, to determine the water content-density relationship of soils. The principles set forth therein form the basis of the design and construction control methods used by the major agencies in dam building, airport runways, and highways. His principles address questions relating to the dam cross-section, its upstream slope, the selection of soils, and the rolling equipment. Proctor re-emphasized and expanded his principles in 1948. He evolved the Proctor Tests in the field of earth-fill dams, which are still widely used in soil engineering for compacting earth-fill materials in dam and highway construction. Anonymous (1962). Foundation, dam expert, R.R. Proctor, dies. Engineering News-Record 169(Oct.25): 55. Anonymous (1963). Ralph Roscoe Proctor, F. ASCE. Trans. ASCE 128(5): 139. Proctor, R.R. (1933). Fundamental principles of soil compaction. Engineering News-Record 111(9): 245-248. Proctor, R.R. (1933). Description of field and laboratory methods. Engineering News-Record 111(10): 286-289. Proctor, R.R. (1933). Field and laboratory verification of soil suitability. Engineering News-Record 111(12): 348-351. Proctor, R.R. (1933). New principles applied to actual dam-building. Engineering News-Record 111(13): 372-376. Proctor, R.R. (1948). The relationship between the foot pounds per cubic foot of compactive effort and the shear strength of compacted soils. 2nd Intl. Conf. Soil Mechanics and Foundation Engineering Rotterdam 5: 219-223. web.mst.edu/.../ge441/.../GE441-Lecture2-1.pdf P

PULS 30.01. 1897 Lowell MA/USA 11.05. 1992 Arvada CO/USA Louis George Puls was a career engineer with the US Government, who worked on President Roosevelt’s Tennessee Valley Authority TVA, becoming director of the US Bureau of Reclamation USBR of the Western USA. He was the successor of Kenneth B. Keener (1888-1971). Puls was involved in water projects and dams, not only in the West, but also in Honduras, Mexico, and the USSR. The Puls papers available at USBR Library contain personal files, an autobiography, water project papers, scrap-books, maps, photos, and engineering drawings. Puls was the chief design engineer of Glen Canyon Dam. This project was authorized by Congress in 1956, and the first construction contract was awarded later that year. Work officially began when President Eisenhower pushed a button at Washington, and exploded by voice control a detonating cap, sending the first shower of rock into the canyon. Glen Canyon Dam is one of the engineering wonders and with 216 m the forth highest dam in the USA. Honoured upon its completion in 1964 as an outstanding civil engineering project, the thick-arch dam contains 1 million m3 of concrete. Lake Powell, the reservoir impounded by the dam, is the second largest in the country, storing enough water to meet the needs of 30 million families for a year. The power plant has eight generating units, with a total generating capacity of 1,320 MW. A enormous cavitation damage was experienced in 1983. After the flood event, the tunnels were inspected for constructional damages, confirming that large holes were excavated by the high-speed flow which almost were as deep as the tunnel diameter of 11 m, extending over a length of nearly 50 m. It was observed that these damages were avoided by an anti-cavitation system. Anonymous (1958). Puls succeeds Keener as USBR’s chief designer. Engineering News-Record 160(Jun.5): 78. P Anonymous (1961). Puls leaves Bureau of Reclamation. Engineering News-Record 167(Oct.19): 78. P Puls, L.G. (1928). Flood regulation of the Tennessee River. House Document 185, 70th Congress, 1st Session. Government Printing Office: Washington DC. Puls, L.G. (1931). Spillway discharge capacity of Wilson Dam. Trans. ASCE 95: 316-333. Puls, L.G. (1941). Mechanics of the hydraulic jump. Technical Memorandum 623. USBR: Denver. Puls, L.G. (1950). Hungry Horse Dam, largest single contract of USBR now in force. Civil Engineering 20(12): 764-768.