DRAINAGE SYSTEM

The Flood Risk of a River Green and the Drainage System of a Proposed New Office

The Flood Risk of a River Green and the Drainage System of a Proposed New Office

Introduction

Apart from the fact that excessive moisture damages the vegetation on the plot, it can have a negative impact on the buildings, which are located on this site. In winter, soil moisture freezes and begins to expand in all directions. As a result, layers of soil are beginning to put pressure on the foundations of buildings (Butler & Davies, 2000). This leads to the fact that the basement becomes unfit for use, on the walls of the cracks begin to appear, door and window openings are skewed.

Drainage systems can be either open or closed. Open drainage is relatively cheap and easy to use system. To create an open drainage system must be easy to dig around the plot gutters and ensure that they are not clogged. In this ditch should go under the bias of the house beyond the infield area. Closed type of drainage has several types. The closed drainage system is constructed easily enough: the main part of its installation is the installation of soft drains. To do this, dig ditches, make a layer of gravel or sand filling to the top layer of soil.

Discussion

Drainage trench filled land from which previously removed all the stones. From the basement to the surface should be a layer of gravel or other permeable material. If the basement of the building there are rooms or basements, you should seal the outside of the foundation, for example, with the film (Wang, 2009). You can also change the soil structure and regulate the absorption of her so wet. Soil and material shall be placed with a slope of 1:50 in the direction of the house.

Drainage wells are located in places of pipe bends, setting the direction of flowing water, or become the headers are. Also, drainage wells are items of maintenance. In particular, through them, of cleaning the drains. Drainage pumps designed for pumping water, apply where the removal of accumulated waste water from the drainage system can not be a natural way. These pumps are installed in the drainage wells and adapted for use in submerged - their electric part is waterproof and well insulated. Models of pumps differ in performance (pumping speed), which is determined in cubic meters per hour. Another important point - the diameter of exhaust pump. The greater the diameter, the higher the maximum amount of particulate matter, noise pump.

For example, a site with a cottage, located away from the pond and not constrained by transport and underground utilities, we can restrict trench drainage and for the mansion, located on the slope of the landslide in the valley of the river requires a combined drainage, including the vertical wells, and reservoir drainage facilities to pump station (Read, 2011). If built underground structure such as parking, you may need to blow a few levels of horizontal drainage in combination with ...