Information about the object

“Multi-storey apartment house with built-in premises. Yubileyny micro district, Letter 2”

Customer

ООО СИК «Девелопмент-Юг»

Objectives:

  • enhancement of strength and deformation characteristics of soils;
  • balancing of physical and mechanical characteristics of soils at the base of foundations by reinforcement in the underlying layer from the base of the foundation;
  • foundation soils stabilization;
  • prevention of settlement of foundations and basements above allowable level;
  • reduction of estimated seismicity of the construction site by 1 magnitude through transformation of physical and mechanical soil properties from seismicity category III to category II.

Solution:

A set of measures on transformation of construction properties of soils (arrangement of artificial basements), reinforcement of subsiding soils by the method of pressure injection cementation. Considering the local engineering-geological conditions of the construction site, the foundation soils were reinforced according to the following construction procedure: solid reinforcement to the given depth with one layer of injectors. Drilling of boreholes was performed from the bottom elevation of the construction pit, and for the vertical protective barrier – from the surface elevation and the elevation of the foundation plate with the use of embedded shells. Soil cementation was performed from the top elevation of the foundation plate and the surface elevation. Perception of potential pulling loads is provided for extra stability in cementation anchors along axes with the use of heavy-walled pipes and embedding of the anchor end in the foundation plate.

Year of performance: April 2015

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