PROCESS OF ERECTION OF GUARDING ANTIFILTRATION ENGINEERINGPRTECTIVE STRUCTURE Russian patent published in 2003 - IPC

FIELD: construction industry. SUBSTANCE: in correspondence with first variant of erection of guarding ant filtration engineering-protective structures under complex hydrometeorological conditions guarding members in the form of bodies of revolution are sunk around periphery of section of ground of protected territory up to planned mark. In this case some guarding members in the form of piles are first sunk at certain distances one from another, then other guarding members are driven between piles run into ground before. Hollow or monolithic piles with loosening tip in lower part and helical arrangement on outer surface are first run into ground, then other guarding members in the form of casings with loosening tip in lower part and helical arrangement on outer surface are lowered into ground with lateral displacement from line passing through centers of piles between specified piles screwed into ground. Piles and casings are sunk into ground due to their simultaneous rotation and forcing under external load or under their own weight. Then fixing and/or antifiltration material is fed between turns of helical arrangement into mouth of each formed hole with inserted casing and casing is unscrewed thanks to reverse rotation for consolidation of ground wall of hole in zone of hole foot and side wall of hole compacted by fixing and/or antifiltration material with simultaneous filling of space of hole to form drilled-compacted pile with use of mentioned material fed along outer surface of casing during its unscrewing. In accordance with second variant casings only are employed in the capacity of bodies of revolution. Technical result of invention ensured by both variants consists in geological, technical and safe possibility of sinking of piles thanks to replacement of drilled-out ground with body of pile at present time moment, in increased bearing capacity due to output of ground to day surface in volume less than volume of sunk pile, in possibility of arrangement of guarding antifiltration engineering-protective structure for protected territory in restricted urban conditions and in increased labor productivity without consumption of additional energy resources. EFFECT: arrangement of guarding antifiltration engineering-protective structure under restricted urban conditions. 4 cl, 10 dwg