Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Mohammad Sharghi"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract Rocks deformed at low confining pressure are brittle, which means that after peak stress, the strength declines to a residual value established by sliding friction. The stress drop is the variation between peak and residual values. But no te
Externí odkaz:
https://doaj.org/article/e0bfcc6b3eab455792d00e6eacc91a7b
Publikováno v:
Proceedings of the Institution of Civil Engineers - Ground Improvement. 175:277-289
In mechanised tunnelling, the filling of the annular gap behind the precast concrete segments is one of the essential operations. The main goal of filling this space is to reduce surface settlements and limit movements due to tunnel excavation in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ad78272923784b691f260782c6fc5b3
https://doi.org/10.1680/jgrim.20.00037
https://doi.org/10.1680/jgrim.20.00037
Publikováno v:
Journal of Materials in Civil Engineering. 35
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c9df5d25af6e16352f6a0245adc0481
https://doi.org/10.1061/jmcee7.mteng-15417
https://doi.org/10.1061/jmcee7.mteng-15417
Publikováno v:
Structural Concrete. 24:2638-2661
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b63dc56a00f04d37b6529cc71118f95b
https://doi.org/10.1002/suco.202200538
https://doi.org/10.1002/suco.202200538
Publikováno v:
Asian Journal of Water, Environment and Pollution. 19:71-78
The choice of cutting tools for soil excavation has a significant impact on the performance of tunnel boring machines. In this study, the data of two excavated sections of the Tabriz metro line 2 project have been used, and the crossed soils were san
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aef3299f2b53c6c1cf2b07da4e3606bd
https://doi.org/10.3233/ajw220026
https://doi.org/10.3233/ajw220026
Publikováno v:
Iranian Journal of Science and Technology, Transactions of Civil Engineering. 46:1311-1328
The mechanical properties of frozen rocks vary significantly from the properties of the same lithology under ambient temperature. The goal of this paper is to investigate these changes in the physical and mechanical properties of rocks due to saturat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8266d75bffbe138b2712e6c98bb7e1b1
https://doi.org/10.1007/s40996-021-00690-z
https://doi.org/10.1007/s40996-021-00690-z
Publikováno v:
Acta Geotechnica. 17:877-902
An accurate determination of Hoek–Brown constant mi is of great significance in the estimation of the failure criteria of brittle rock materials. So far, different approaches such as rigidity index method (R-index), uniaxial compressive strength-ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df2d231a99a341534296eb6cc5b88cd7
https://doi.org/10.1007/s11440-021-01229-2
https://doi.org/10.1007/s11440-021-01229-2
Publikováno v:
Soil Mechanics and Foundation Engineering. 57:506-512
Ground displacement is an inevitable problem in the excavation of tunnels and underground spaces near the surface. The importance of surface settlement increases with a reduction of the depth of tunnelling. In urban areas, when settlements exceed the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cc20bc75b7572499f683ae723957b7e
https://doi.org/10.1007/s11204-021-09699-y
https://doi.org/10.1007/s11204-021-09699-y
The investigation on brittle-ductile transition has become of central importance in many geologic situations. This paper aims to study the relationship between brittle-ductile transition stress, un...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74c58baed4f4d31122fb8c99d5a5daa5
https://doi.org/10.1002/essoar.10506751.1
https://doi.org/10.1002/essoar.10506751.1
Publikováno v:
Arabian Journal of Geosciences. 13
The mechanized tunnelling process is mainly coupled with precast concrete segments, which include segmental rings that they are placed in their place simultaneously with the boring operation. Segments are mainly loaded by thrust jacks during the inst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2df38a0e9a6f064cd265c51799af06c0
https://doi.org/10.1007/s12517-020-05740-w
https://doi.org/10.1007/s12517-020-05740-w