METHOD OF PROTECTION OF PILE FOUNDATION OF BEARING SUPPORT AGAINST SOIL FROST HEAVE FORCES Russian patent published in 2016 - IPC E02D31/14 

FIELD: construction.

SUBSTANCE: method of protection of a pile foundation of a bearing support against soil frost heave forces includes drilling of wells along the circumferential perimeter for the depth exceeding the depth of seasonal soil freezing, installation of one anchor element in each well in the form of a pipe with the length exceeding the depth of the well for the length of surface ends, and connection of the surface ends of anchor elements with the pile foundation of the bearing support. The anchor elements in the form of a pipe are made of a polymer material, which preserves high elasticity under winter soil temperatures, there are perforations at the deepened end sections of the anchor elements, through which via pipelines inserted into the tubular anchor elements they inject a hardening composition to form volume counterweights on the bottom of the wells as a result of an expanded area of interaction and engagement of the hardening composition with the soil, anchor elements and with the pile foundation. Connection of the surface ends of the anchor elements in the form of pipes with the pile foundation of the bearing support is carried out by the formation of a solid connection platform from a hardening mass, partially deepened into the surface soil.

EFFECT: increased efficiency of reaction to the forces of soil frost heave, provision of stability and reliability of design parameters of the construction and operation of supports, exclusion of instances of their deviation from the vertical position.

2 cl, 4 dwg