The new ground floor is of in situ concrete and contains horizontal drainage ducts.

It was the first example in the UK of an earth dam with horizontal drainage blankets.

The unit filters and diverts rainwater from a horizontal drainage pipe to a storage tank.

Observed and predicted behaviour of clay during consolidation with combined vertical and horizontal drainage.

The original Fourdrinier forming section used a horizontal drainage area, referred to as the drainage table.

By 1901 a 760 m long horizontal drainage shaft was installed, which led from the lowermost excavation level back to daylight.

Horizontal drainage systems are drainage systems using open ditches (trenches) or buried pipe drains.

Sub horizontal drainage is very effective in reducing pore-pressure along crack surfaces or potential breakage surfaces.

Subsurface drainage of groundwater can also be accomplished by pumped wells (vertical drainage, in contrast to horizontal drainage).

This study presents the analytical modeling of the consolidation of vertical drains incorporating vacuum preloading considering both vertical and horizontal drainage.

The costs of the most attractive solution can be compared with the costs of a horizontal drainage system - for which the drain spacing can be calculated with a drainage equation - serving the same purpose, to decide which system deserves preference.

Subsurface drainage by wells is often referred to as vertical drainage, and drainage by channels as horizontal drainage, but it is more clear to speak of "field drainage by wells" and "field drainage by ditches or pipes" respectively.

Results from in situ pore pressure dissipation tests are compared with those from large-diameter Rowe cell tests performed on undisturbed samples under both vertical and horizontal drainage conditions and in situ permeability tests to provide reference values of the vertical coefficient of consolidation cv and ch.