Vikulov V. M., Kornilkov M. V. – The Ural State Mining University, Ekaterinburg, the Russian Federation.
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Zoteev O. V. – The Institute of Mining of the Ural Branch of RAS, Ekaterinburg, the Russian Federation.
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The article proves and substantiates, that in order to develop foundation pit anchor support it is necessary to apply
ascending anchor installation method in instances in which the use of ground “descending” anchors can be limited by
the presence of hard rock jointed massifs, karst rock and floating rock (grounds), as well as in the sections which are full
of subsoil engineering services. Significant advantage of the suggested foundation pit supporting wall support construction
is distinctness, clearness and simplicity of its structural behavior, which is provided by constant visual control over
the state of attachment and gripping points, whereas the use of ground anchors creates some uncertainty of their
structural behavior, connected to the absence of data about geological construction and properties of grounds anchor
hinge part; and also connected to concealed nature of works on its arrangement. Anchors of the suggested construction
are supposed to be manufactured from composite material – fiberglass and carbon fiber – so called banded fiberglass
anchors. It will help to easily transport anchors in shape of coils, and to cut them in pieces of any length at sight. However
this construction requires verification by anchor bar upper end attachment point support balance condition calculation,
which is situated on the surface of the ground. The given article introduces the methods of calculating supporting slope
and verification of the support shift strength.

Key words: anchor support; ascending anchor installation method; state of attachment points; supporting strength
of fiberglass anchor; installation efficiency.

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