Vynnykov, Yu. L. та Kharchenko, M. O. та Lartseva, I. I. та Yaholnyk, A. M. (2022) EXPERIENCE OF IMPROVING THE OPERATING RELIABILITY OF DRILLING MACHINES AT THE INSTALLATION OF EXTRA DEEP WELLS IN COMPLEX GEOLOGICAL CONDITIONS. UNIVERSITAS Publishing. с. 670-681.

Text 25 Vynnykov Yu.L .zax.pdf Download(959kB)

English abstract

Constructive and geotechnical solutions for the arrangement of bases and foundations of drilling rigs for the construction of wells up to 6000 m deep in complex engineering and geological conditions, as well as the results of approbation of these solutions are given. The thickness of non-building soils (soil-plant layer, peat, fluidplastic and fluid loams) is 5.6 m, and the groundwater level is 1 m from the earth's surface. Different thicknesses of soil layers, as well as various layers and lenses were recorded within the massif. Geotechnical solutions of engineering preparation for prefabricated foundation slab from 5 rows of road slabs for a drilling machine with a capacity of 450 tons are analyzed, in particular: cutting weak soils with piles; improvement of the base under the machine by vertical reinforcement of weak soils with rigid elements and replacement of the top layer with a compacted sand cushion; improving the base with vertical gravel drains within water-saturated weak soils and replacing the top layer with a compacted sand cushion; improving the base with horizontal gravel drains and replacing the top layer with a sand cushion.

Перегляд елементу

Завантажень