METHOD BY VS SKALNY TO ERECT OUTER AND INNER WALLS OF UNDERGROUND PREMISES IN SOIL Russian patent published in 2013 - IPC E02D29/55 

FIELD: construction.

SUBSTANCE: method to erect outer and inner walls of underground premises in soil consists in the fact that along the axis of the underground wall, separately standing bored piles are formed, which are combined with a binding wall from concrete. Piles are made with a pitch of 2…3 metres of the foundation system, and as pile bodies gain 30% strength, they are combined with a binding concrete wall, which is made in parallel to the axis of the wall at its inner side in the vertical slot groove of soil with width of 8…12 cm with account of pile body cutting by the value of at least 5 cm and for depth exceeding the floor level of underground premises by at least 30 cm. The face of the slot groove at the inner side of the underground part of the structure is covered with a polyethylene film and with a weight in the form of a bar reinforcement, with its protrusion to the surface. The reinforcement capping frame is installed, which closes the slot groove of soil, a reinforcement grid is attached to it for the depth of at least 1.5 metre, simultaneous concreting of the capping and the slot groove is made in accordance with the standard technology, completing formation of the binding wall, afterwards the solidified structure is covered with a protrusion of the polyethylene film from the slot groove of soil. Inner walls of underground premises are formed in soil simultaneously with outer underground walls of the structure with the same process complex of works as during erection of outer underground walls. The design of the inner walls includes a row of single-standing bored piles of the foundation system, soil between them, binding walls at two opposite sides of the pile row arranged in turn to the level of the capping foot, which combines the structure of the inner wall. The concreted capping is covered with protrusions of polyethylene films from two slot grooves as overlapping, and upon completion of the process of gaining of concrete design strength for all underground walls, soil is developed in the inner space of the underground part of the structure.

EFFECT: simplified technology of a device in a natural massif of soil of outer and inner walls of premises in the underground part of buildings and structures in the complex with their foundation system, reduced labour intensiveness and material intensity, reduced duration of construction.

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