Browse > Article
http://dx.doi.org/10.12989/gae.2014.7.6.613

Computational modeling of buried blast-induced ground motion and ground subsidence  

Zhang, Zhi-Chao (College of Civil and Transportation Engineering, Hohai University)
Liu, Han-Long (College of Civil and Transportation Engineering, Hohai University)
Pak, Ronald Y.S. (Department of Civil, Environmental & Architectural Engineering, University of Colorado)
Chen, Yu-Min (College of Civil and Transportation Engineering, Hohai University)
Publication Information
Geomechanics and Engineering / v.7, no.6, 2014 , pp. 613-631 More about this Journal
Abstract
To complement the method of field-scale seismic ground motion simulations by buried blast techniques, the application and evaluation of the capability of a numerical modeling platform to simulate buried explosion-induced ground motion at a real soil site is presented in this paper. Upon a layout of the experimental setup at a level site wherein multiple charges that were buried over a large-diameter circle and detonated in a planned sequence, the formulation of a numerical model of the soil and the explosives using the finite element code LS-DYNA is developed for the evaluation of the resulting ground motion and surface subsidence. With a compact elastoplastic cap model calibrated for the loess soils on the basis of the site and laboratory test program, numerical solutions are obtained by explicit time integration for various dynamic aspects and their relation with the field blast experiment. Quantitative comparison of the computed ground acceleration time histories at different locations and induced spatial subsidence on the surface afterwards is given for further engineering insights in regard to the capabilities and limitations of both the numerical and experimental approaches.
Keywords
buried explosion; field tests; numerical method; earthquakes; ground motion; ground subsidence;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Al-Qasimi, E.M.A., Charlie, W.A. and Woeller, D.J. (2005), "Canadian liquefaction experiment (CANLEX) blast-induced ground motion and pore pressure experiments", Can. Geotech. J., 1(28), 1-13.
2 Ashford, S., Rollins, K. and Lane, J. (2004), "Blast-induced liquefaction for full-scale foundation testing", J. Geotech. Geoenviron. Eng., 130(8), 798-806.   DOI
3 Ashlock, J.C., Drnevich, V.P. and Pak, R.Y.S. (2013), "Strain measures for transfer function approaches to resonant column testing", Geotech. Test. J., 36(4), 455-465.
4 Bates, C.R. (1989), "Dynamic soil property measurements during triaxial testing", Geotechnique., 39(4), 721-726.   DOI
5 Chen, W.F. and Saleeb, A.F. (1994), Constitutive Equations for Engineering Materials: Elasticity and Modeling, Volume 1, Elsevier, Amsterdam, Netherlands.
6 DiMaggio, F.L. and Sandler, I.S. (1971), "Material model for granular soils", J. Eng. Mech. Div., 97(EM3), 935-950.
7 Dou, H. and Byrne, P.M. (1997), "Model studies of boundary effect on dynamic soil response", Can. Geotech. J., 34(3), 460-465.   DOI
8 Elgamal, A., Yang, Z.H., Lai, T., Kutter, B. and Wilson, D. (2005), "Dynamic response of saturated dense sand in laminated centrifuge container", J. Geotech. Geoenviron. Eng., 131(5), 598-609.   DOI   ScienceOn
9 Gao, X., Ling, X.Z., Tang, L. and Xu, P.J. (2011), "Soil-pile-bridge structure interaction in liquefying ground using shake table testing", Soil Dyn. Earthq. Eng., 31(7), 1009-1017.   DOI
10 Garga, V.K. (1988), "Effect of sample size on shear strength of basaltic residual soils", Can. Geotech. J., 25(3), 478-487.   DOI
11 Hallquist, J.O. (2012), LS-DYNA Keyword User's Manual (971 R6.0.0), Livermore Software Technology Corporation, Livermore, CA, USA.
12 Henrych, J. (1979), The Dynamics of Explosion and its Use, World Scientific, New York, NY, USA.
13 Luo, Y.S. (2000), "Experimental study of dynamic properties and parameters of typical loess in china", Ph.D. Dissertation, Xi'an University of Technology, Xi'an, China.
14 Kim, K.M. (2009), "Design of roadside barrier systems placed on mechanically stabilized earth (MSE) retaining walls", Ph.D. Dissertation, Texas A&M University, College Station, TX, USA.
15 Li, B.X., Niu, Y.H. and Miao, T.D. (2007), "Physico-mechanical characteristics of Malan loess in Lanzhou region", Rock Soil Mech., 28(6), 1077-1082. [In Chinese]
16 Liu, H.Y., Yang, J. and Chen, P.W. (2004), "Simulation of the process of explosion funnel formulation by means of discontinuous deformation analysis", Rock Soil Mech., 10(2), 17-20. [In Chinese]
17 Mamalis, A.G., Theodorakopoulos, I.D. and Vortselas, A.K. (2011), "Optimisation of the explosive compaction process for powder-in-tube MgB2 superconductors using numerical simulations", Technische Mechanik, 32(4), 416-424.
18 Nair, A.M. and Latha, M.G. (2012), "Taming of large diameter triaxial setup", Geomech. Eng., Int. J., 4 (4), 251-262.   DOI
19 Pak, R.Y.S., Soudkhah, M. and Abedzadeh, F. (2011), "Experimental synthesis of seismic horizontal freefield motion of soil in finite-domain simulations with absorbing boundary," Soil. Dyn. Earthq. Eng., 31(11), 1529-1539.   DOI
20 Rutherford, C.J. and Biscontin, G. (2013), "Development of a multidirectional simpleshear testing device", Geotech. Test. J., 36(6), 858-866.
21 Santagata, M. and Germaine, J.T. (2005), "Effect of OCR on sampling disturbance of cohesive soils and evaluation of laboratory reconsolidation procedures", Can. Geotech. J., 42(2), 459-474.   DOI
22 Wang, L.M., Sun, J.J., Huang, X.F., Xu, S.H., Shi, Y.C., Qiu, R.D. and Zhang, Z.Z. (2011a), "A field testing study on negative skin friction along piles induced by seismic subsidence of loess", Soil Dyn. Earthq. Eng., 31(1), 45-58.   DOI
23 Sun, J.J. (2010), "Study on seismic subsidence of loess and negative skin friction along piles by field test", Ph.D. Dissertation, Lanzhou University, Lanzhou, China.
24 Vaid, Y.P. and Sivathayalan, S. (1996), "Static and cyclic liquefaction potential of fraser delta sand in simple shear and triaxial tests", Can. Geotech. J., 33(2), 281-289.   DOI   ScienceOn
25 Wang, L.M., He, K.M., Shi, Y.C. and Wang, J. (2002), "Study on liquefaction of saturated loess by insituexplosion test", Earthq. Eng. Eng. Vib., 1(1), 50-56.   DOI
26 Wang, L.P., Zhang, G. and Zhang, J.M. (2011b), "Centrifuge model tests of geotextile-reinforced soil embankments during an earthquake", Geotext. Geomembr., 29(3), 222-232.   DOI
27 Fung, Y.C. and Tong, P. (2001), Classical and Computational Solid Mechanics, World Scientific, New York, NY, USA.