Build Daily

Engineering Systems

August 12, 2017 18:08

Depth of the drainage pipe

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Choice

system scheme In order to project a good drainage system, you must observe the principle of proper piping slope.To determine this, it is desirable to have a map with elevations of the soil, but if there is none, determine the direction of the slope can be traced back, in what direction drain precipitation.

drainage pipes are placed on the entire perimeter of the site.The main task of the calculation and design of the system is its tracing and identification of deepening occurrence pipes.

The choice of system scheme

depth Calculating drainage laying

Calculation of frost depth.It is recommended to place the tube below the level of soil freezing, as the most important task of the system - continue to operate during the spring flood and just take the excess water from the site.

There is a direct dependence of the depth of soil freezing on the climate zone in which land is placed, as well as the porosity of the soil.The higher the figure, the worse the soil is exposed to freezing.

Reduces the ability of soil to freeze as snow cover, as a large heat-insulating layer of snow is good soil.

The minimum depth of the drain pipe turns out as follows: on the value of soil freezing for a particular climate zone is necessary to subtract 300 mm (pipe less than 500 mm in diameter) or 500 mm (for large diameter).

Calculating the depth of laying drainage

Calculation of depth of foundations is simple - a mark of the foundation is added to the value of 0.5 meters, the result is the required depth of the gutter.This system design allows drainage divert groundwater and flood waters, while they have not yet reached the foundations and basements.

not overestimate the soil dry during the construction works, as in the autumn and summer, the groundwater level is much lower than in the spring, what must be taken into account when choosing the depth of laying drainage.

characteristic depth, which can be taken in this area, is a value in the range of 1.3-1.4 meters, excluding heat from buildings.It affects the calculation only in the case if the house is heated in winter.

summarize: if the depth of laying the foundation 1.5 meters, respectively, drainage will be laid on deepening 2m.

Performing calculations for both methods, selected and accepted by the working depth of the drain pipe of great importance.

Calculating the depth of laying drainage

Preventing flooding homes

important structures, which need to be protected against flooding and high water is a house.Therefore it is necessary to ensure effective water drainage, erecting around the drain.To protect the foundations, basements and ground facilities needed to be done such work:

  • conducted trenching around the perimeter of construction - it is necessary to dig a trench 0.5 meters in width and depth, which is determined by the previous calculation.We need to make sure that the slope on the meter was at least two centimeters.Part of the trench having the lowest mark, must be joined to the drainage wells.From the walls to the ditches should be 3-5 meters.
  • bottom of the trench is filled with a layer of gravel to 0.5 meters thick.Before you buy it, you should calculate the amount of material required for this operation, according to the formula:

V = L * H * W, where:

  • V - cubic capacity necessary gravel, cube.m
  • L -. trench length, m
  • H - thickness of the gravel layer, it is recommended to take 0.5 m
  • W -. trench width, m
  1. pipes stacked on a substrate of gravel
  2. At the point of contact with the pipeconcrete ring puncher to punch a few more of its diameter.

Preventing flooding homes

correct calculation of the drainage system is a guarantee that in the spring time at home basements and foundations are not affected by the floods, excess moisture and will be assigned to the area.Extremely important factors in the design, such as the depth of the drainage pipe tracing systems, as well as the correct organization of the construction work will not worry about the threat of flooding.

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