Zobrazeno 1 - 10
of 38
pro vyhledávání: '"mohammad hajiazizi"'
Publikováno v:
Cogent Engineering, Vol 11, Iss 1 (2024)
AbstractUsing high-filled cut-and-cover tunnels (HFCCTs) can provide a practical and ideal solution for the possibility of using highly demanded lands with plateaus terrain. The huge amount of HFCCT backfill soil produces ultrahigh vertical earth pre
Externí odkaz:
https://doaj.org/article/c89a2345c3b14475a79350b4e9625ec5
Autor:
Shamil Flamarz, Mohammad Hajiazizi
Publikováno v:
International Journal of Mining and Geo-Engineering, Vol 57, Iss 1, Pp 73-87 (2023)
For the possibility of using valuable lands with plateaus terrain, the High-filled cut-and-cover tunnels (HFCCTs) are considered a practical and successful solution. The HFCCT is first constructed and then backfilled in layers in the trench, which is
Externí odkaz:
https://doaj.org/article/aa205c1fe27c47ceb665f0785c237aea
Publikováno v:
International Journal of Mining and Geo-Engineering, Vol 56, Iss 2, Pp 107-113 (2022)
Chemical compounds of soils can remarkably affect the stability of the excavation wall. This is highlighted in soils with fine grain materials. Inter-particle chemical cementation (IPCC) increases soil cohesion and, in turn, provides more stable exca
Externí odkaz:
https://doaj.org/article/a6d72b8b51184bae92dc6fda52164455
Publikováno v:
Civil Engineering Infrastructures Journal, Vol 54, Iss 2, Pp 267-280 (2021)
Determination of tunnel support, required for tunnel stability and safety, is an important debate in tunnel engineering field. Q-system classification is a technique used to determine the support system of a tunnel in rock. The problem is that all th
Externí odkaz:
https://doaj.org/article/9c35a6df514e4886b7f362c21ec3d271
Publikováno v:
Cogent Engineering, Vol 9, Iss 1 (2022)
[Figure: see text]Using the high-filled cut-and-cover tunnels (HFCCTs) provides a typical solution for the possibility of using valuable lands with plateaus terrain. Because of the high quantities of backfill soil above the HFCCT, at present, the exi
Externí odkaz:
https://doaj.org/article/ac89c138e4724c418ea41cec5d0c0039
Autor:
Mohammad Hajiazizi, Zeinab Mirzazadeh
Publikováno v:
Civil Engineering Infrastructures Journal, Vol 53, Iss 2, Pp 341-358 (2020)
The creep of earth slopes is an important challenge of the long-term stability of slopes. This paper develops a limit equilibrium method (LEM)-based analytical approach for calculating the shear displacement of creep-induced failure surface in 2D sta
Externí odkaz:
https://doaj.org/article/33d2112eed984f8dbe94ab25fa7f829a
Publikováno v:
Journal of Rehabilitation in Civil Engineering, Vol 8, Iss 3, Pp 139-157 (2020)
The issue of environmental protection has led researchers to pay serious attention to waste tires. Civil engineers have found that waste tires can increase bearing capacity, earth slope stability, and other useful applications in civil engineering. I
Externí odkaz:
https://doaj.org/article/ec34fe484f134762896842283342fe5d
Autor:
Masoud Nasiri, Mohammad Hajiazizi
Publikováno v:
International Journal of Mining and Geo-Engineering, Vol 54, Iss 1, Pp 71-75 (2020)
Slope stability is one of the important issues in geotechnical engineering. In this regard, due to the growth in the number of numerical approaches, the two and Three-dimensional Finite Element Method (FEM) and the Finite Difference Method (FDM) are
Externí odkaz:
https://doaj.org/article/f3baa3ae4baa4dbcb5fc380d1c02a623
Publikováno v:
International Journal of Mining and Geo-Engineering, Vol 53, Iss 2, Pp 183-191 (2019)
In recent years, scraped tires have become an environmental and economic problem. Reusing waste tires for reinforcing slope can be a suitable solution for the disposal and reduction of the number of scrap tires. In this paper, a series of experimenta
Externí odkaz:
https://doaj.org/article/afcca9e8fb5646ddb4378d722c5b495d
Experimental and Numerical Investigation of Reinforced Sand Slope Using Geogird Encased Stone Column
Autor:
Mohammad Hajiazizi, Masoud Nasiri
Publikováno v:
Civil Engineering Infrastructures Journal, Vol 52, Iss 1, Pp 85-100 (2019)
Among all of the slope stability methods, use of stone columns and geosynthetic elements can be a good way for stabilizing. One of the efficient ways in order to reinforce earth slopes is Geogrid Encased Stone Column (GESC). This technique can dramat
Externí odkaz:
https://doaj.org/article/9bf5bd70e37a44cc9e460115b8191d6f