The Use of Simple Relief Wells in Reducing Water Pressure Beneath a Trench Excavation.

Ward, W. H.; Preene, Martin; Clayton, C. R. I.; Brs,

doi:10.1680/igeng.1996.28759

Cited by 3 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…That the presence of high pore water pressures in strata of relatively low hydraulic conductivity could be immensely damaging and potentially dangerous was elegantly demonstrated in a classic case history by Ward (1957). This concerned a $6 m deep sewer trench excavated at Millbrook, Southampton, in 1949, through Test valley gravel into the underlying Bracklesham Beds-a notoriously variable Eocene deposit comprising at this location a layer of sandy clay overlying laminated silty clay and fine sand.…”

Section: Groundwater Control (Construction Dewatering)mentioning

confidence: 99%

“…Other well-documented case studies of groundwater control and construction dewatering systems, in addition to Ward Ward (1957), reported in Géotechnique include the Mangla Dam (Starr et al, 1969) and Sizewell B nuclear power station (Knight et al, 1996). Both of these were designed with the aid of an electrical resistance network analogue model (Herbert & Rushton, 1966)-a technique now ren-CONTRIBUTIONS TO GÉOTECHNIQUE 1948-2008: GROUNDWATER dered virtually obsolete by numerical analysis using modern computers.…”

Section: Groundwater Control (Construction Dewatering)mentioning

confidence: 99%

See 1 more Smart Citation

Contributions to Géotechnique 1948–2008: Groundwater

Powrie¹

2008

Géotechnique

View full text Add to dashboard Cite

This paper reviews work on the subject of groundwater published in Géotechnique over the past 60 years. Contributions relating to the effects of groundwater on geotechnical structures, measurement of pore water pressure using piezometers, analysis of groundwater flow, groundwater control or construction dewatering, estimating hydraulic conductivity, and passive vertical drains are summarised and discussed. Three major areas of significant impact are identified: (a) the realisation of the dominant role of pore water pressure equilibration in the delayed failure of cut slopes; (b) determination of the hydraulic conductivity of soils by means of rising-or falling-head tests in piezometers and boreholes; and (c) understanding the role of soil fabric in groundwater control, and using it to extend the operational range of pumped groundwater control techniques to soils of low permeability.

show abstract

Section: Groundwater Control (Construction Dewatering)mentioning

confidence: 99%