METHOD AND DEVICE FOR PLASTIC DRAIN SYSTEM CONSTRUCTION IN THE CASE OF HIGH GROUND-WATER LEVEL Russian patent published in 2007 - IPC E02B11/00 E02F5/10 

FIELD: reclamation building, particularly to create accumulation-and-drainage system in the case of ground-water level exceeding drainage laying level.

SUBSTANCE: method involves digging-out trench with the use of chain reversely rotating working tool of narrow drainage machine along with excavated ground movement between trench walls and drainage machine hopper; forming drain communicated with trench through guiding member. Drain includes two pipes covered with synthetic filter and connected with each other by means of flexible connection members so that drain string is created. Drain is laid in trench by drain insertion in guiding member so that major drain cross-sectional axis extends along trench axis. Drain is laid on trench bottom so that major cross-sectional axis thereof is directed obliquely to trench axis and drain passes in depressions made in trench walls for distance of not more than 0.2 of string width. One pipe is sealed with caps and opened after drain-water level reduction. Device for said method realization comprises narrow draining machine including basis vehicle, chain reversely rotating working tool, guiding member, hopper defined by two longitudinal and two transversal vertical walls and provided with front cutting part, as well as hollow plough share. Plough share has removable shaped side wings installed at cutting part thereof. Guiding member is arranged in hopper and includes vertical post joined to plough share interior through spiral section. Receiving orifice of guiding member at vertical post is directed so that major cross-sectional axis extends along device axis. Outlet plough share orifice is directed so that major cross-sectional axis thereof is transversal to device axis.

EFFECT: increased drain laying quality and decreased costs for further device operation.

3 cl, 6 dwg