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Vol 233
Pages:
480
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METHOD FOR FORECAST OF SURFACE DEFORMATION DURING EXCAVATION OPERATIONS IN RESTRAINT URBAN CONDITIONS USING THE SLURRY TRENCH TECHNIQUE

Authors:
P. A. Demenkov1
L. A. Goldobina2
O. V. Trushko3
About authors
  • 1 — Saint-Petersburg Mining University
  • 2 — Saint-Petersburg Mining University
  • 3 — Saint-Petersburg Mining University
Date submitted:
2018-05-14
Date accepted:
2018-07-01
Date published:
2018-10-25

Abstract

The article suggests the method for forecast of surface deformation during excavation operations in restraint urban conditions using the slurry trench technique based on FEM simulation. The results of numerical simulation of the construction of a semi-underground structure with slurry trench technique are given. The regularities of the change in the stress-strain state are determined depending on the trench parameters and the physical-mechanical properties of the soils. The work presents the troughs of surface subsidence during the construction of an excavation using the slurry trench technique, the diagrams of bending moments, transverse and longitudinal forces arising in the trench. Numerical experiments in Plaxis 2D and 3D were performed to estimate the discrepancy between modeling results in a plane and volumetric formulation of the problem.

10.31897/pmi.2018.5.480
Go to volume 233

References

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  2. Протосеня А.Г. Изучение прочности на сжатие трещиноватого горного массива / А.Г.Протосеня, П.Э.Вербило // Записки Горного института. 2017. Т. 223. С. 51-57. DOI: 10.18454/PMI.2017.1.51
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  7. Demenkov P.A. Emergency Assessment of Semi-Embedded Construction / P.A.Demenkov, N.A.Belakov, V.I.Ochkurov // International Journal of Applied Engineering Research. 2016. Vol. 11. № 21. P. 10698-10707
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