New Method of Surface Settlement Prediction for Saint-petersburg Metro Escalator Tunnels Excavated by EPB TBM

Novozhenin, S. U.; Vystrchil, M. G.

doi:10.1016/j.proeng.2016.07.283

Cited by 12 publications

(7 citation statements)

References 1 publication

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“…Sci. 2017, 7, x 7 of 29 (5) When the strength of the middle floor slabs and side walls of the station hall reach up to 80% of the design values, the soil from the middle span to the bottom slab is excavated. Followed by the construction of the waterproof layer and the bottom slab ( Figure 6e).…”

Section: Engineering Overviewmentioning

confidence: 99%

“…Not only can it ensure the whole stiffness of STS structure, but also retain the characteristics of STS structure. Considering the longitudinal direction of STS structure has a high stiffness, the longitudinal stiffness of material 1 is equivalent to longitudinal stiffness of concrete filled steel tube, and the stiffness is 92 GPa according to Formula (5). Considering the effect of the steel tube with the hole on the whole stiffness, the stiffness was reduced to 70%, that is 65 GPa [35].…”

Section: Simplification Of Sts Structurementioning

confidence: 99%

“…GPa according to Formula (5). Considering the effect of the steel tube with the hole on the whole stiffness, the stiffness was reduced to 70%, that is 65 GPa [35].…”

Section: Appl Sci 2017 7 X 17 Of 29mentioning

confidence: 99%

“…So when the bottom flange was welded, the elastic modulus of the material 2 is 2.3 GPa, and when the bottom flange was not welded, the elastic modulus of the material 2 is 1.21 GPa. 7.0x10 8 1.4x10 9 2.1x10 9 2.8x10 9 3.5x10 9 3.0x10 7 6.0x10 GPa according to Formula (5). Considering the effect of the steel tube with the hole on the whole stiffness, the stiffness was reduced to 70%, that is 65 GPa [35].…”

Section: Appl Sci 2017 7 X 17 Of 29mentioning

confidence: 99%

“…Control of the soil movements due to excavations is of utter importance in subway projects, because they are often planned in the populated areas of cities that are already well developed. Several methods for surface settlement prediction due to underground excavations are currently available including those proposed by Peck, Reilly and Novozhenin [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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A Case Study on the Application of the Steel Tube Slab Structure in Construction of a Subway Station

et al. 2018

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It is an effective approach to use Steel Tube Slab (STS) structure combined with the Pile-Beam-Arch (PBA) method to construct a large-space underground station. Traditional construction methods cannot meet the requirement of construction because of the complicated soil layers and high building densities in urban areas. The STS method can effectively increase the rigidity of the supporting system by using steel tubes. Firstly, the stress of bolts and steel tubes are investigated in the construction process based on the field monitoring data. Subsequently, FLAC3D is used to establish a three-dimensional model, which is verified based on the in-situ monitoring data; the effect of excavation process on ground settlement, deformation of STS structure and bridge pile are studied by numerical results. Moreover, the key parameters such as welding of flanges and the step length are studied. The results show that the stress of the steel tubes and flanges does not exceed the designed strength during the construction process. Based on the numerical simulation data, it is indicated that the STS structure can be a very effective and dependable measure in controlling and reducing the surface settlement and the existing adjacent buildings. The numerical results can be used to guide the later construction.

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Section: Engineering Overviewmentioning

confidence: 99%

Section: Simplification Of Sts Structurementioning

confidence: 99%

“…GPa according to Formula (5). Considering the effect of the steel tube with the hole on the whole stiffness, the stiffness was reduced to 70%, that is 65 GPa [35].…”

Section: Appl Sci 2017 7 X 17 Of 29mentioning

confidence: 99%

Section: Appl Sci 2017 7 X 17 Of 29mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Case Study on the Application of the Steel Tube Slab Structure in Construction of a Subway Station

et al. 2018

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Prediction of Ground Settlement Due to Excavation of a Quasi-Rectangular Shield Tunnel Based on Stochastic Medium Theory

et al. 2019

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Study on the Effect of Surface Subsidence Due to Tunneling Under Various Loading Conditions

Krishna

Lokhande

2021

Geotech Geol Eng

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The subsidence caused on the surface due to the construction of subsurface tunnels for various purposes in urban areas is a major concern for both the tunnel and the overlaid buildings. Seeing the importance of study, different models has been created keeping reference of commercial and residential buildings. The amount of surface deformation and the stresses so generated are calculated, which plays a paramount role before construction. These models are analyzed on circular and semicircular tunnels with various loading conditions and varying litho. In this paper, two software's namely STAAD Pro and Rocscience were used for structural design and analysis respectively. The study gives the basic idea of behavior of these two shapes of tunnels with varying loading condition and strata which shows a path for predicting unforeseeable displacements in real life situations.

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New Method of Surface Settlement Prediction for Saint-petersburg Metro Escalator Tunnels Excavated by EPB TBM

Cited by 12 publications

References 1 publication

A Case Study on the Application of the Steel Tube Slab Structure in Construction of a Subway Station

A Case Study on the Application of the Steel Tube Slab Structure in Construction of a Subway Station

Prediction of Ground Settlement Due to Excavation of a Quasi-Rectangular Shield Tunnel Based on Stochastic Medium Theory

Study on the Effect of Surface Subsidence Due to Tunneling Under Various Loading Conditions

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