. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. Brentiviiofl Ilill Cuttiii(j. Eastern Counties Hailway. and C) of the cutting, showing the extent of the excavation and the slopes, the benchings, culverts, wells, drain-pipes, and gravel counterforts. The nature of the material of the cutting was sand, sand with loam, gravel, and silt. The great difficulty experienced in draining the slopes, had arisen from the slimy nature of the silt, from which the water could'not be separated. Its power of bohling water might be imagined
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. Brentiviiofl Ilill Cuttiii(j. Eastern Counties Hailway. and C) of the cutting, showing the extent of the excavation and the slopes, the benchings, culverts, wells, drain-pipes, and gravel counterforts. The nature of the material of the cutting was sand, sand with loam, gravel, and silt. The great difficulty experienced in draining the slopes, had arisen from the slimy nature of the silt, from which the water could'not be separated. Its power of bohling water might be imagined, from the fact of a face of nearly 00 feet of slope, being expo'^ed during 2 years, without producing any sen- sible effect in the drain:ige of the material. The silt had a constant tendency to How away with the water, and great attention was directed to that point, in order to prevent the slopes from being injured. The provision for upholding and draining the slopes comprised in the con- tract, consisted of a fence ditch at the top of the cutting, a benching 10 feet wide, half way down, and the ordinary side drains at the foot, with drain pipes, running in various directions, along the face of the slopes. To this was subsequently added a culvert, on the benching on each side, with proper outfalls; then the wells (Fig. 10,) were adopted, and lastly gravel counter. ^orts. The wells were not placed with any rcgiilaritv, but were sunk at (he wettest parts of the slope ; they were steined as in the ordinary well work, until within a distance of about 3 feet from the bottom, where an inner ring of brickwork 4i inches thick, was built in cement. The bottoms of the wells were not bricked, but each had an outlet pipe of about 2 inches diameter, into the open drain below it. There were twenty of these wells, in the upper port of the north slope, ranging in depth from 15 feet to 20 feet, and 3^1 feet in diameter. In the lower part of the same slope, there were twenty-five wells of the s
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