Three-dimensional dynamic response of a lined tunnel in a half-space of saturated soil under internal explosive loading: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Three-dimensional dynamic response of a lined tunnel in a half-space of saturated soil under internal explosive loading

Wang, Y. / Gao, G.Y. / Yang, J.

AbstractBlast waves have a random direction of propagation with reference to the axis of the tunnel and this renders the problem three-dimensional. Because tunnels are buried in a certain depth, a half-space model is more appropriate than a full space model in the dynamic analysis. In this paper, three-dimensional (3D) dynamic response of a lined tunnel buried in a half-space of soil due to blasting is studied analytically. The lining structure and the surrounding soil are treated as a homogeneous elastic medium and a saturated porous medium, respectively. The 3D solutions for displacement, stress and pore water pressure in the saturated soil and the displacement at the ground surface are derived in time domain by means of the Fourier and Laplace transforms. The effects of buried depth to these various dynamic responses are investigated numerically.

Highlights•3D blast dynamic responses of a lined tunnel in a saturated half space are derived.•Dynamic responses attenuate exponentially along the radial and axial directions of the tunnel.•Liquefaction of saturated soil is more likely to occur in deeper buried depth.•Influence range of dynamic response increases with the growing depth of the lining.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Three-dimensional dynamic response of a lined tunnel in a half-space of saturated soil under internal explosive loading

Wang, Y. / Gao, G.Y. / Yang, J.

AbstractBlast waves have a random direction of propagation with reference to the axis of the tunnel and this renders the problem three-dimensional. Because tunnels are buried in a certain depth, a half-space model is more appropriate than a full space model in the dynamic analysis. In this paper, three-dimensional (3D) dynamic response of a lined tunnel buried in a half-space of soil due to blasting is studied analytically. The lining structure and the surrounding soil are treated as a homogeneous elastic medium and a saturated porous medium, respectively. The 3D solutions for displacement, stress and pore water pressure in the saturated soil and the displacement at the ground surface are derived in time domain by means of the Fourier and Laplace transforms. The effects of buried depth to these various dynamic responses are investigated numerically.

Highlights•3D blast dynamic responses of a lined tunnel in a saturated half space are derived.•Dynamic responses attenuate exponentially along the radial and axial directions of the tunnel.•Liquefaction of saturated soil is more likely to occur in deeper buried depth.•Influence range of dynamic response increases with the growing depth of the lining.

Three-dimensional dynamic response of a lined tunnel in a half-space of saturated soil under internal explosive loading

Wang, Y. / Gao, G.Y. / Yang, J.

AbstractBlast waves have a random direction of propagation with reference to the axis of the tunnel and this renders the problem three-dimensional. Because tunnels are buried in a certain depth, a half-space model is more appropriate than a full space model in the dynamic analysis. In this paper, three-dimensional (3D) dynamic response of a lined tunnel buried in a half-space of soil due to blasting is studied analytically. The lining structure and the surrounding soil are treated as a homogeneous elastic medium and a saturated porous medium, respectively. The 3D solutions for displacement, stress and pore water pressure in the saturated soil and the displacement at the ground surface are derived in time domain by means of the Fourier and Laplace transforms. The effects of buried depth to these various dynamic responses are investigated numerically.

Highlights•3D blast dynamic responses of a lined tunnel in a saturated half space are derived.•Dynamic responses attenuate exponentially along the radial and axial directions of the tunnel.•Liquefaction of saturated soil is more likely to occur in deeper buried depth.•Influence range of dynamic response increases with the growing depth of the lining.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Three-dimensional dynamic response of a lined tunnel in a half-space of saturated soil under internal explosive loading

Contributors:

Wang, Y. (author) / Gao, G.Y. (author) / Yang, J. (author)

Published in:

Soil Dynamics and Earthquake Engineering ; 101 ; 157-161

Publication date:

2017-07-29

Size:

5 pages

ISSN:

DOI:

https://doi.org/10.1016/j.soildyn.2017.07.018

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Blast loading , Dynamic response , Lined tunnel , Pore pressure , Saturated soil

Similar titles

Three-dimensional dynamic response of a lined tunnel in a half-space of saturated soil under internal explosive loading

Wang, Y. / Gao, G.Y. / Yang, J. | British Library Online Contents | 2017

Three-dimensional dynamic response of a lined tunnel in a half-space of saturated soil under internal explosive loading

Wang, Y. / Gao, G.Y. / Yang, J. | British Library Online Contents | 2017

Three-dimensional dynamic response of a lined tunnel in a half-space of saturated soil under internal explosive loading

Wang, Y. / Gao, G.Y. / Yang, J. | British Library Online Contents | 2017

Three-dimensional dynamic response of a lined tunnel in a half-space of saturated soil under internal explosive loading

Wang, Y. / Gao, G.Y. / Yang, J. | British Library Online Contents | 2017

Transient dynamic response of a shallow buried lined tunnel in saturated soil

Wang, Y. / Gao, G.Y. / Yang, J. et al. | British Library Online Contents | 2017