Abstract
The article evaluates the weather and hydrological impact on geotechnology when fragmented peat is milled and dried at a peat deposit. The amount of moisture feeding the fragmented peat of a deposit was studied and was determined to depend on the ground water level. The influence of drainage on the water regime of a high-more peat deposit and that of weather conditions on ground water level fluctuations over time have been evaluated at production sites with an open drainage network. When a peat deposit is drained, under the action of gravitation (the pressure differential in the ground and a drain), ground water seeps into the drains and is transported along them, down-grade, to the collection network and diverted from the drained area. The processes of moisture movement at a peat deposit help evaluate and justify measures to improve its water-air regime which is used in the development of intensive draining methods for a peat deposit and the maintenance of the necessary water regime in peat deposits.
Highlights
The sustainable management of peat reserves determines the possible directions of using the peat resources of a specific peat deposit [1,2, 3]
The ground water located 50-60 cm below the surface of the deposit was not found to affect the drying of fragmented peat lying on the surface of a peat deposit (Fig. 1)
The decrease in the underground water level caused by the action of drains directly affects the overlying zone maintaining the necessary water-air regime in it
Summary
The sustainable management of peat reserves determines the possible directions of using the peat resources of a specific peat deposit [1,2, 3]. Its constant depth is used for milling throughout the season This results in the situation that on meteorologically good days the layer reaches the harvesting moisture content before the set time after which the peat becomes overdried. The milling of such peat gives a heavy dusting which leads to its losses and contamination of the surrounding area. If the weather conditions are poor, the layer of fragmented peat does not have time to reach the harvesting moisture content before the end of the cycle, which leads to the underutilization of favourable drying conditions in milling peat deposits. Open canals and drains are dug through according to certain schemes
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