In:
geotechnik, Wiley, Vol. 43, No. 1 ( 2020-03), p. 31-39
Abstract:
Shear behavior of acrylate gel grouted bodies – Safety‐relevant findings on the selection of the failure criterion Pore space grouting with acrylate gel is carried out to increase the strength and seal the subsoil. In order to assess the stability of a structure after the grouting process, the grouted bodies must be examined for their soil mechanical behavior. The shear strength is often described with the Mohr‐Coulomb failure criterion for soil and rock. Experimental laboratory tests on an acrylate gel grouted body have shown that the increase in shear strength is not linear with increasing normal stress and, in consequence of the Mohr‐Coulomb failure criterion, the strength of the grouted body is overestimated. Based on this knowledge, numerical comparison calculations were carried out on an excavation pit. In the calculations, the failure criteria according to Mohr‐Coulomb and Hoek‐Brown were taken into account. Based on the experimental and numerical investigations, a failure criterion relevant for the construction practice for acrylate gel grouted bodies is determined in order to correctly assess the strength and stability of a building.
Type of Medium:
Online Resource
ISSN:
0172-6145
,
2190-6653
DOI:
10.1002/gete.201900013
Language:
German
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
2603770-1
detail.hit.zdb_id:
163070-2
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