FIELD: construction.;SUBSTANCE: invention is related in particular to engineering surveys in construction, and is intended for conducting static tests of soils with piles both at the stage of engineering and geological surveys for designing foundations, and at the stage of control tests of soils with piles to check their compliance with the bearing capacity of the calculated loads, and can also be used for static testing of soils with shells, dies, models of foundations of various designs. A mobile unit for static testing of soils with piles consists of a jack, a thrust spatial structure in the form of a collapsible bolted geodesic dome, anchors located along the perimeter of the dome base, a reference system and displacement measurement sensors. The upper node of the geodesic dome is connected to the nodes of the lower tier using tension elements to ensure uniform distribution of the spacer force from the jack over all rods and nodes of the geodesic dome and transfer it to anchors made of drill augers built up in depth, while tension elements connecting the upper node of the geodesic dome with nodes of its lower tier, allowing to reduce the forces arising in the rods of the upper tier of the geodesic dome in the process of static loading of the pile, and thereby ensuring uniform distribution of the expansion force from the jack through the upper node of the dome over all elements of the installation, and distribution of the expansion force from jack in the rods of the dome in the form of tensile and compressive forces, in tension elements in the form of tensile forces, and in anchors - in the form of a pulling load.;EFFECT: increasing the efficiency of using a mobile installation for conducting static testing of soils with piles, that is, ensuring a uniform distribution of the expansion force from the jack over all rods and nodes of the geodesic dome to anchors made of drill augers that grow in depth, due to the use of tension elements connecting the upper node of the geodesic dome with the nodes of its lower tier, as well as reducing the time and laboriousness of the assembly (disassembly) of the thrust structure.;5 cl, 3 dwg
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