FIELD: construction of industrial and civil buildings on soft and sedimentary ground, excavation of profiled trenches and foundation pits.
SUBSTANCE: method involves perforating and expanding ground with operational disc-like tool mounted on axis by stepwise increasing cross-section of initial cavity formed by operational tool including n discs. Number of discs and shape thereof depend on mechanical ground quality and predetermined trench profiles. The stepwise cavity expanding is performed by increase in disc number and by disc diameters decrease starting with one having the greatest diameter. Trench walls are strengthened during or after ground puncturing or expanding by introducing reinforcing material and/or plasticizer. Operational tool has low-adhesion coating.
EFFECT: reduced labor inputs, decreased cost.
3 cl, 1 ex, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WORKING TOOL AND METHOD FOR PROFILED PIT FORMING | 2004 |
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