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Sub-surface Drainage:
Sub-surface drainage is intended to take away the water seeping through the pervious layers of the soil, causing a high water table, or in cut slopes of hills. The arrangement usually consists of a trench, at the bottom of which is laid a perforated or porous pipe. The trench is filled with stone aggregates. Figure shows a sub-surface drain in a hill slope, which drains away the water and prevents landslides and slips. Figure shows a sub-surface drainage system for lowering the water table.
Figure : Subsurface Drain at Cut Slopes
Figure : Sub-drains for Lowering Ground Water Table
State the method of Pre- Tensioning It is a method of prestressing concrete in which tendons are stretched or tensioned before concreting. In this form of construction, concr
Determine the dimension of the vertical side walls for a rectangular open channel designed to convey 150 cfs of storm water runoff. The runoff is collected in the parking lots and
Compute the safe bearing capacity of a square footing 1.5 m × 1.5 m, located at a depth of 1 m below the ground level in a soil of average density 20 kN/m 3 . = 20°, N c = 17.7,
a pilot entering a bay on course
langkah keselamatan
Water quality analysis: This water quality analysis presents an overview of physical characteristics of water, chemical substances that are normally present in water and vario
Define the Ignitability - Hazardous Waste - is a liquid with flash point - Not a liquid and capable of spontaneous and sustained combustion under normal conditions - Ign
Q. Write a short note on Economic Span of a Bridge? The span for which the total cost of bridge will be minimum is known as the economic span. The ratio of Cost of super str
desirable properties in green concrete
Q If the degree of curve is defined by the angle at the center subtended by an arc (or chord) 20 meters, find the length of the chord in meters so that the versine measured in cm
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