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Chapter
Operational yields
Authors: W. L. Jack, A. O. Lambert
Source: Water Resources and Reservoir Engineering, January 1992, pages 65 - 72

The original evaluation of yield for most UK reservoirs was based on the analysis of actual or synthetic drought sequences. It was assumed that the resource is depleted by a uniform demand and that it is just emptied on the day a drought of specified severity (eg. 1 in 50 years) ends. After the 1984 drought Welsh Water decided to base its yield calculations on “Operational Yield”. This takes into account the way that sources would actually be operated in severe droughts. It includes effects of hosepipe bans and drought orders, and makes assumptions about the end date of the drought which water resource managers would actually use.

  • Background

  • Basic Principles

  • Realistic Hydrology

  • Realistic Demands and Controls

  • Yield of a Single Source

  • Interlinked Sources

  • Control Rules

  • Improved Management of Resources

  • Conclusions

  • References

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Chapter
Operation and maintenance
Source: Civil Engineering Procedure, 6th edition, January 2008, pages 123 - 132

  • Operation and maintenance needs

  • Planning for operation and maintenance

  • Contracts for operation and maintenance

  • Training of operations personnel and managers

  • Overseas operating contracts

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Article
MINING OPERATIONS. (ABSTRACT).
Authors: J ROBERTS
Source: Minutes of the Proceedings, Volume 112, Issue 1893, January 1893, pages 326 - 338
326 ROBERTS ON PINING-OPERATIONS. [Selected (Paper No. 2679.) " Mining-Operations." By JOHN ROBERTS. (Abstmct.) AFTER some introductory observations the Author proceeds to treat, i n somewhat generalterms, of themachineryrequired for the development andpermanentworking of ametalliferous mine'; remarking first that, whether operations are undertaken in virgin ground or on an abandoned and subsequently re-opened property, the mechanical appliances required nearly are identical, and should i n no case be of an inferior class. I f a mine is to be worked below the adit level, the first considerations will be the best site for the engine-shaft and the most suitable form of pumping-engine...

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Chapter
9 Valve operations
Source: Pressure Transients in Water Engineering: A Guide to Analysis and Interpretation of Behaviour, January 2008, pages 106 - 124

  • 9.1 Treated water main

  • 9.2 Improving valve operation

  • 9.3 Two-stage valve closure

  • 9.4 Submerged discharge valve

  • 9.5 In-line valves

  • 9.6 Control of transient pressures and estimation of valve operating time

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Chapter
6. Operating machinery
Source: Hydraulic Gates and Valves in Free Surface Flow and Submerged Outlets, 2nd edition, January 2001, pages 115 - 126

  • Electromechanical drives

  • Oil hydraulic operation of gates in free surface flow

  • Hoist speed

  • Reference

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Chapter
5 Operational planning
Source: Marketing of Engineering Services, January 1994, pages 21 - 28

  • Starting a marketing initiative

  • Budgeting

  • Fast food illustration

  • Consumer goods illustration

  • Implications for civil engineering activities

  • Characteristics of marketing in civil engineering

  • Establishing a marketing budget

  • Operational management

  • Links with selling budgets

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Article
INFORMAL DISCUSSION. OPERATION BRIDGEGUARD.
Authors: AH JENKINS, KJ WALKER
Source: ICE Proceedings, Volume 49, Issue 4, August 1971, pages 577 - 580
22 March, 1971 INFORMAL DISCUSSION Operation Bridgeguard introduced by A. H. Jenkins, BSc(Eng), FlCE reported by K. J. Walker, BSc(Eng), MICE In the Road Traffic Act of 1930 provision was made for a bridge authority to limit a bridge on the grounds of low capacity. The particular clause which enabled this to be done was never implemented by the Minister of Transport, as to do would have so caused considerable disturbance to the commercial traffic of Britain, and although this clause was repeated almost unchanged in the subsequent Acts of 1933, 1960 and even 1967 the result was the same, and this clause remained inoperative...

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Article
CORRESPONDENCE. BUILDINGS FOR AIR TRANSPORT OPERATORS. AIRPORT ENGINEERING DIVISION.
Authors: R G EDKINS, B T TURNER
Source: ICE Engineering Division Papers, Volume 9, Issue 16, January 1951, pages 45 - 46
CORRESPONDENCE ON BUILDINGS FOR AIR TRANSPORT OPERATORS 46 AIRPORT ENGINEERING DIVISION Airport Paper No. 15 " Buildings for Air TransportOperators by EDKINS, B.A., M.I.C.E. REGINALD GEORGE t Correspondence Mr B. T. Turner observed that if Great Britain were to become really air-minded operational costs would certainly have to be reduced in the future, and it was vitally important, therefore, that all airline personnel should become cost-conscious. There seemed little doubt that Britain was a t a disadvantage compared with America, where open competition with the railways existed and all operators were forced to tailor their running costs to the absolute minimum and to carry out planned preventative maintenance on a work-study basis...

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Article
BUILDINGS FOR AIR TRANSPORT OPERATORS. AIRPORT ENGINEERING DIVISION.
Authors: R G EDKINS
Source: ICE Engineering Division Papers, Volume 9, Issue 12, January 1951, pages 3 - 53
THE INSTITUTION OF CIVIL ENGINEERS AIRPORT ENGINEERING DIVISION Tuesday 2 January 1951 MEETING SIR ARTHUR WHITAKER, K.C.R., M.Eng., M.I.C.E., Chairman of the Division, in the Chair The following Paper was submitted for discussion and, on the motion of the Chairman, the thanks of t,he Division were accorded t,o the Author. Airport Paper No. l 5 " Buildings for Air Transport Operators " by REGINALD GEORGE EDKINS, B.A., M.I.C.E. SYNOPSIS The Paper describes the function of the buildings and the factorswhich affect the choice of their main dimensions and arrangement, and gives an account of some existing examples of the types included...

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Article
OPERATION OF A RECHARGE BOREHOLE.,
Authors: J K MARSHALL, A SARAVANAPAVAN, Z SPIEGEL, M S HANTUSU, TUEIS
Source: ICE Proceedings, Volume 41, Issue 3, November 1968, pages 447 - 473
7115 Operation of a recharge borehole The Paper describes the operation a deep borehole into Keuper and Bunter sandof stones, recharged in winterwith soft water suppliedby the City of Birmipgham Water Department, and used in summer as a source for irrigation at the Birmingham Racecourse (Warwickshire). The licence for operation of the borehole limited abstraction to the volume of water previously recharged, in spite of the small quantity needed but was in rechargingthis forirrigation (3.6 million gal/ycar) difficulty experienced amount. Experiments weremade to find the cause' of the initial failure...

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