ANCHOR (VERSIONS) Russian patent published in 2015 - IPC E21D21/00 

FIELD: mining.

SUBSTANCE: invention relates to mining and can be used for mine walling. The technical result is improvement of reliability of anchor installation and decrease of labour input of its preparation for installation in a well. The anchor is offered which includes the deformable pipe filled with a hardening substance which expands being hardened. The deformable pipe is wound on a rod and made from material permeable for the involved liquid. In the second version the anchor includes the deformable pipe filled with the hardening substance which expands being hardened. The deformable pipe is filled with the water used as the named substance, it is made from expanding material, impenetrable for water, and wound on a rod. In the third version the anchor includes the pipe made as a sheet wound in spiral and filled with the hardening substance which expands being hardened. The pipe is punched and it accommodates shells from material permeable for the involved liquid with the mix forming the named substance at interaction with the involved liquid. In the fourth version the anchor includes the pipe designed as a spiral sheet filled with the hardening substance which expands being hardened. The pipe accommodates the shells with water used as the named substance from the expanding material, impenetrable for water.

EFFECT: decrease of labour input of anchor preparation for its installation in a well.

8 cl, 6 dwg