The ground reaction curve of underwater tunnels considering seepage forces

Shin, Younghak; Kim, Byoung Min; Shin, Jong-chil; Lee, In Mo

doi:10.1016/j.tust.2010.01.005

Cited by 48 publications

(14 citation statements)

References 19 publications

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“…Substituting (12) and (13) at r = R in equation (6) is obtained in dependence on the radius of the plastic zone: (15) where ,…”

Section: Description Of the Problem And Test Methodsmentioning

confidence: 99%

“…The increase of pressure p a exerted by the support limits the extent of the plastic zone. Equation (15) shows that in the rock mass with a high angle of internal friction the radius of the plastic zone is smaller. The radius of the plastic zone increases with increasing radius of the excavation and the pressure in the rock mass.…”

Section: The Analysis Of the Impact Of Dilatation And Strength Reductmentioning

confidence: 99%

“…Research on a dry rock mass paved way to a solutions according to the impact of water pressure on the behaviour of the rock material. Shin et al [15] presented the results of the analysis of the behaviour of the rock mass around the tunnels based on the concept of the response of curve rock mass and taking into account the impact of groundwater percolates.…”

Section: Introductionmentioning

confidence: 99%

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Application of the Elastic-Plastic Model in the Analysis of the Displacement in a Rock Mass

Marczak¹

2018

Adv. Sci. Technol. Res. J.

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The concern of this article is the analysis of the impact of increased volume (dilation) and decreased strength of the rock material in the plastic zone on the displacement field in the vicinity of the roadway. Elastic-plastic model of the behaviour of the rock material and the strength criterion of Coulomb-Mohr were assumed. The volume change of the rock material is controlled by the angle of dilation ψ, which determines dilation parameter β that is taken into account in the analysis. The influence of parameter β and the strength of the rock material, after crossing the border state of stress, in the field of displacements in the vicinity of the excavation and rock pressure on the elastic support of the excavation was proved. The relationships determining displacement fields in the plastic zone which were obtained with consideration to in this zone of both the elastic and plastic displacement, as well as the relationships which were obtained without elastic deformations was discussed. The exact form of the equation for the displacement field in the plastic zone depends on how the elastic deformation in the plastic zone is defined. There are three ways of describing these deformations. In the first method it is assumed that in plastic deformation area the elastic deformation constants are equal to the deformation constants at the plastic and elastic border. The second method of description is based on the assumption that the plastic zone is a thick-walled ring whose edges: internal and external have been appropriately debited. In the third method, elastic deformations in the plastic zone were made dependent on the state of stress in the zone. The results are illustrated in a form of response curves of the rock mass.Keywords: state of displacement, roadway, elastic-plastic model, response curve of the rock mass, dilatation, decreased strength of rock material, reducing the strength of the rock material, Coulomb-Mohr criterion.

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“…Substituting (12) and (13) at r = R in equation (6) is obtained in dependence on the radius of the plastic zone: (15) where ,…”

Section: Description Of the Problem And Test Methodsmentioning

confidence: 99%

Section: The Analysis Of the Impact Of Dilatation And Strength Reductmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of the Elastic-Plastic Model in the Analysis of the Displacement in a Rock Mass

Marczak¹

2018

Adv. Sci. Technol. Res. J.

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“…To put it another way, formation fluid continuously flows into the wellbore during the operation of UBD and seepage stresses (Shin et al, 2010) are exerted on wellbore. Based on poromechanics and elastic mechanics and given assumptions, He et al (2014) established analytical models to obtain circumferential stresses produced by fluid seepage, i.e.…”

Section: > > > >mentioning

confidence: 99%

Factors influencing wellbore stability during underbalanced drilling of horizontal wells – When fluid seepage is considered

Wang

Shen³

et al. 2015

Journal of Natural Gas Science and Engineering

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“…It is of great importance to resist lining of tunnels against in situ ground stress and water pressure from groundwater and interior flow. This issue has led to many works on investigating stress field around lined hydraulic tunnels considering seepage and non-seepage conditions [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The stress state around lined non-circular hydraulic tunnels below the water table using complex variable method

Kargar

Rahmannejad

Hajabasi

2015

International Journal of Rock Mechanics and Mining Sciences

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The ground reaction curve of underwater tunnels considering seepage forces

Cited by 48 publications

References 19 publications

Application of the Elastic-Plastic Model in the Analysis of the Displacement in a Rock Mass

Application of the Elastic-Plastic Model in the Analysis of the Displacement in a Rock Mass

Factors influencing wellbore stability during underbalanced drilling of horizontal wells – When fluid seepage is considered

The stress state around lined non-circular hydraulic tunnels below the water table using complex variable method

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