ICE - Institution of Civil Engineers - Virtual Library

478 WELLS IN THE METROPOLIS. June 30, 1846. SIRJOHN RENNIE, President, in the Chair. The fdlowing candidates were balloted for and duly elected :CharlesEdward Cawley, EdwardLeader Williams, andGeorge Giles, as Members; and Francis Warren and George Selby, as Associates. Mr. F. BRAITHWAITE, M. Inst. C . E., exhibited and described a chart, upon a large scale, of the situations of the priucipal deep wells of the metropolis, taking St. Paul's as the centre, and describing a circle with a radius of four miles...

I'aprs .3 UAPITO OS THE OIL-WELLS OF ASSAM. 363 The Oil-Wells of Assam." By CHARLES ERIK CAPITO, Assoc. M . Inst. C.E. THEfirst recorded discovery of petroleum in the Assam Valley was made in 1826, and further discoveries were reported in 1837, 1845 and 1865.Borings for oil weremade in 1865 and 1866, but the workings were subsequentlyabandoned.]Theconstruction of the AssamRailway andTrading Company's railway-line in 1882 to their large coal-fields in the Makum districts gave, however, a fresh impetustothe petroleumindustry...

Induced recharge using riverain wells Conventionally abstraction of water from a large riverfor irrigation often dependson regulation of the river by surface storage. This Paper presents an alternative that is applicable to some alluvial plains where a large transmissive aquifer is associated and with the river system. The principle is to use a well field to pump the aquifer intensively during the low flow period thus depleting the ground water reservoir. This in turn induces recharge from the river especially during the subsequent flood season. For optimum development the system depends on the well field configuration, the pumping regime and total pumping capacity in order to ensure the largest possible extraction at times of low flow without taking a high proportion of the water from the river butalso to ensure that in the long run a balanced recharge condition is achieved...

WELLS IN THE METROPOLIS. 479 for half an hour, at the end of which time only 13 feet of the 18 feet were regained. The plans exhibited were1intended to illustrate a paper, on the deep wells of the metropolis, which Mr. John Braithwaite, M. Inst. C. E., promised to contribute at an early period. The DEARof WEsTMINSTEn, inthe discussion which ensued, treated, with his usual clearness of scientific research, the di5cultproblem of the origin of subterraneous lakes, or sheets of water, and the causes of the spontaneous ascent of the watertowards the surface of the earth...

218 GILL ON ARTESIANWELLS IN SOUTH LINCOLNSHIRE. [Selected (Paper No. 8454.) "Artesian Wells in South Lincolnshire." By JOHN CHARLES GILL,Assoc. M. Inst. C.E. watersupply would soon be inadequate for the rapidly increasing population of that city and borough, decided, upon the advice of the Author, to sink some tube-wells a t Wilsthorpe, i n Lincolnshire, 14 miles from Peterborough. Three of these artesian wells have now been completed, and they havebeen so successful in attaining the desired object, at a comparatively small outlay, that a short description of the work maybe of interest...

7098 DISCUSSION Unsteady unconfinedflow to gravity wells J. A. FOX i 1. ALI 3 Dr T. R. E. Chidley, University of Aston in Birmingham There appears to have been a recent surge of interest in the problem of flow around wells both in this country and abroad. I have just returned from the Middle East where I have been engaged in the design and analysis of multi-well irrigation schemes. This involvement with the problem has further shownthe real need for more research on it; in meeting this need the Authors are to be congratulated...

~roc~ediogs.] CORRESPONDENCEON WATER-SUPPLY FROM WELLS. 91 Correspondence. Mr. W. SANTO CRIMP submitted a section of the Wandle Valley, >fr. Crimp. Fig. 3, p. 92, most 6f the borings from which the information was derived being of recent date. The anti-clinal so strongly marked had been noticed by Mr. Joseph Lucas,' who had given a section of it about l mile further east. Thisridge died outwestward near the Wimbledon Station of the London and South-Western Railway, and attained greatest its elevation at Tooting...

40 DISCUSSION ON WATER-SUPPLY FROM WELLS. [ITinutes of Discussion. Mr. E. W O O D S , President, said i t was a matter of great advantage that the Papers had been grouped together, dealing as they did with the same subject, and which had occupied the attention of engineers for the last thirty or forty years or more. One of the first occasions on which it had been brought prominently under his notice was the work ofMr. George Berkley, who carried out the investigations in connection with the Liverpool Waterworks, upon which Robert Nr...

7098 Unsteady unconfinedflow to gravity wells Shallow-water wave theory can be used to describe unsteady flow through porous media. The significant point of difference between this application and more usual ones is the much greater friction losses experiencedby a fluid when moving through the such media. As in all problems using shallow-water wave theory solution involves the integration of a pair of quasilinear hyperbolic partial differential equations and for a digital computer a modification of the method of characteristics programed wasthetechniquechosen.Goodagreementbetweentheoreticalandexperimental valueswasobtained.Because the single-wellproblemissymmetrical a 15" sector A tank wasbuiltwith the plan shape of a 15" sector of a onlywasinvestigated...

The highway network is the largest and most visible community asset for which local authorities are responsible. It is used daily by the majority of people and is fundamental to the economic, social and environmental wellbeing of the community. It helps to shape the character and quality of the local areas that it serves and makes an important contribution to wider local authority priorities, including regeneration, social inclusion, community safety, education and health. In order to fulfil its potential it is crucial that the highway network is maintained. Increasing traffic growth has brought increasingly widespread recognition of the importance of highway maintenance and the high value placed on it by users. However, this importance has not generally been reflected in levels of investment, and public concern has been increasing about the implications of this for safety and journey reliability. Recent increases in investment have been welcome but a sustained long-term programme that is efficiently managed and supported by effective technical and management systems is required.

The 2005 edition of Well-maintained Highways: Code of Practice for Highway Maintenance Management, together with the updated Well-lit Highways: Code of Practice for Highway Lighting Management and the new Management of Highway Structures: A Code of Practice, provide the basis for these technical and management systems with detailed guidance on standards and procedures. The codes, so far as possible, seek to harmonise approaches in all parts of the UK and between national and local roads, support the new requirements for asset management and link national and local transport policies. For the first time, the code of practice for well-maintained highways includes the management of public rights of way as part of the highway asset.

This paper summarises the key features of the code, highlighting areas considered to be of particular importance. Copies of all codes can be viewed on the website of the UK Roads Liaison Group (www.ukroadsliaisongroup.org).