Sub-surface drainage, Civil Engineering

Assignment Help:

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.

741_Sub-surface Drainage.png

Figure : Subsurface Drain at Cut Slopes

1918_Sub-surface Drainage1.png

Figure : Sub-drains for Lowering Ground Water Table


Related Discussions:- Sub-surface drainage

Surveying, sample problems with solutions for probable value

sample problems with solutions for probable value

Methods of contouring by grid points, the elevations of grid points for an ...

the elevations of grid points for an area as follows: 1 2 3 4 5 6 7 8 F 690 709 726 732 735 740 743 747 E 696 715 729 736 740 737 739 740 D 702 723 733 742 737 737 745 747 C 707 72

Define the shrinkage limit and shrinkage ratio, The oven-dry weight of a pa...

The oven-dry weight of a pat of clay is 1.17 N and the weight of mercury displaced by it is 0.855 N. suppose the specific gravity of solids as 2.71, verify the shrinkage limit and

Calculate the amount of import or export, Calculate the Amount of Import or...

Calculate the Amount of Import or Export For the project site shown in Figure, the amount of import or export to bring the entire site to elevation 90-ft is most nearly:

Analyse and evaluate lightning strikes, Carry out research to Analyse and E...

Carry out research to Analyse and Evaluate: a.   The potential problems that lightning strikes to an aircraft in flight could create. b.   How design features and maintenance

Why do we need to control air pollution, Why do we need to control air poll...

Why do we need to control air pollution? a. It causes harmful effects on human health,  Materials and property,  Plants and Animals, Visibility, Global climate and others b.

Can you explain curved heads, Q. Can you explain Curved heads ? In case...

Q. Can you explain Curved heads ? In case of rivers carrying high discharges of the order of 28300 m 3 Is and above, Gale's recommendations are more conservative than Spring's

Define the reservoirs - hydraulic system, Define the Reservoirs - Hydraulic...

Define the Reservoirs - Hydraulic System Typically designed for multiple functions - clean water supply, creating recreational opportunities and flood protection. Reservoirs ar

Engg surveying, what does mean by too short and too long in erroneous tape ...

what does mean by too short and too long in erroneous tape length?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd