The article provides information about improvement of the weak clay subgrade using geotextile encased stone columns. The article also presents overview of the technology, the state of knowledge on this topic. Article gives materials about relevance of the study of this technology for applying in Perm region which is characterized by the presence of weak bases represented by water-saturated clay soils. The overview and analysis of existing experimental studies of various scholars on the subject, which allows to identifying the area of the current study which aim is applying this technology to improve the weak bases of the foundations of buildings and structures, are presented. Also it considers the problem of planning of the experimental studies of geotextile encased stone columns in the laboratory conditions. The paper presents developed experimental schemes. Conclusions on the relevance and novelty are given. The objectives of the planned experimental studies are made.
ground piles, geotextile encased stone columns, experimental research, laboratory experiments, design of experiments, planning of experiments, weak soils, clay soils
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