Abstract
Based on the analysis of several objective functions, a new method was proposed. Firstly, the feature of the inclination curve was analyzed. On this basis, the soil could be divided into several blocks with different displacements and deformations. Then, the method of the soil division was presented, and the characteristic of single soil block was studied. The displacement of the block had two components: sliding and deformation. Moreover, a new objective function was constructed according to the deformation of the soil block. Finally, the sensitivities of the objective functions by traditional method and the new method were calculated, respectively. The result shows that the new objective function is more sensitive to mechanical parameters and the inversion result is close to that obtained by the large direct shear apparatus. So, this method can be used in slope back analysis and its effectiveness is proved.
Similar content being viewed by others
References
STYLES T D, COGGAN J S, PINE R J. Back analysis of the Joss Bay Chalk Cliff Failure using numerical modeling [J]. Engineering Geology, 2011, 120(1/2/3/4): 81–90.
SHANG Y J, CAI J G, HAO W D, WU X Y, LI S H. Intelligent back analysis of displacements using precedent type analysis for tunneling [J]. Tunnelling and Underground Space Technology, 2002, 17(4): 381–389.
OKUI Y, TOKUNAGA A, SHINJI M. New back analysis method of slope stability by using field measurements [J]. International Journal of Rock Mechanics and Mining Sciences, 1997, 34(3/4): 231–234.
YU Y, ZHANG B, YUAN H. An intelligent displacement back-analysis method for earth-rockfill dams [J]. Computers and Geotechnics, 2007, 34(6): 423–434.
YANG X L. Seismic passive pressures of earth structures by nonlinear optimization [J]. Archive of Applied Mechanics, 2011, 81(9): 1195–1202.
YANG X L, WANG J M. Ground movement prediction for tunnels using simplified procedure [J]. Tunnelling and Underground Space Technology, 2011, 26(3): 462–471.
YANG X L, HUANG F. Collapse mechanism of shallow tunnel based on nonlinear Hoek-Brown failure criterion [J]. Tunnelling and Underground Space Technology, 2011, 26(6): 686–691.
KAVANAGH K T, CLOUGH R W. Finite element applications in the characterization of elastic solids [J]. International Journal of Solids and Structures, 1971, 7(1): 11–23.
YANG X L, HUANG F, WANG J M. Modified image analytical solutions for ground displacement using nonuniform convergence model [J]. Journal of Central South University of Technology, 2011, 18(3): 859–865.
YANG X L, HUANG F. Influences of strain softening and seepage on elastic and plastic solutions of circular openings in nonlinear rock masses [J]. Journal of Central South University of Technology, 2010, 17(3): 621–627.
YANG X L, HUANG F. Stability analysis of shallow tunnels subjected to seepage with strength reduction theory [J]. Journal of Central South University of Technology, 2009, 16(6): 1001–1005.
SAKURAI S, AKUTAGAWA S, TAKEUCHI K. Back analysis for tunnel engineering as a modern observational method [J]. Tunnelling and Underground Space Technology, 1983, 18(2/3): 185–196.
DENG J H, LEE C F. Displacement back analysis for a steep slope at the three gorges project site [J]. International Journal of Rock Mechanics and Mining Sciences, 2001, 38(2): 259–268.
ZHANG L Q, YUE Z Q, YANG Z F. A displacement-based back-analysis method for rock mass modulus and horizontal in situ stress in tunneling-illustrated with a case study [J]. Tunnelling and Underground Space Technology, 2006, 21(6): 636–649.
YU Y Z, ZHANG B Y, YUAN, H N. An intelligent displacement back-analysis method for earth-rockfill dams [J]. Computers and Geotechnics, 2007, 34(6): 423–434.
HISATAKE M, HIEDA Y. Three-dimensional back-analysis method for the mechanical parameters of the new ground ahead of a tunnel face [J]. Tunnelling and Underground Space Technology, 2008, 23(4): 373–380.
YANG X L, ZOU J F. Estimation of compaction grouting pressure in strain softening soils [J]. Journal of Central South University of Technology, 2009, 16(4): 653–657.
FENG Xia-ting, ZHANG Zhi-Qiang, YANG Cheng-xiang. Study on genetic neural network method of displacement back analysis [J]. Chinese Journal of Rock Mechanics and Engineering, 1999, 18(5): 497–502. (in Chinese)
ZHANG L L, ZHANG J, ZHANG L M. Back analysis of slope failure with Markov chain Monte Carlo simulation [J]. Computers and Geotechnics, 2010, 37(7/8): 905–912.
GAO Wei. Back analysis algorithm in geotechnical engineering based on particle swarm optimization [J]. Rock and Soil Mechanics, 2006, 27(5): 795–798. (in Chinese)
YANG X L, HUANG F. Slope stability analysis considering joined influences of nonlinearity and dilation [J]. Journal of Central South University of Technology, 2009, 16(2): 292–296.
GIODA G, MAIER G. Direct search solution of an inverse problem in elastic-plasticity identification of cohesion, friction angle and in-situ stress by pressure tunnel tests [J]. Int J Numerical Method in Engineering, 1980, 15: 1823–1834.
YANG X L. Seismic bearing capacity of a strip footing on rock slopes [J]. Canadian Geotechnical Journal, 2009, 46(8): 943–954.
YANG X L, YIN J H. Slope stability analysis with nonlinear failure criterion [J]. Journal of Engineering Mechanics, 2004, 130(3): 267–273.
DU Jing-can, LU Zhao-zhen. A new method to determine the parameters of structural plane s in rock masses-The weighted displacement back analysis [J]. Chinese Journal of Geotechnical Engineering, 1999, 21(2): 74–77. (in Chinese)
JI Lin, ZHAO Qin-lin, FENG Zhao-xiang. Back analysis of mechanics parameters for soft rock strata [J]. Journal of Hydraulic Engineering, 2003(11): 107–111. (in Chinese)
YANG X L, YIN J H, LI L. Influence of a nonlinear failure criterion on the bearing capacity of a strip footing resting on rock mass using a lower bound approach [J]. Canadian Geotechnical Journal, 2003, 40(3): 702–707.
YANG X L, YIN J H. Slope equivalent Mohr-Coulomb strength parameters for rock masses satisfying the Hoek-Brown criterion [J]. Rock Mechanics and Rock Engineering, 2010, 43(4): 505–511.
YANG X L, ZOU J F. Cavity expansion analysis with non-linear failure criterion [J]. Proceedings of the Institution of Civil Engineers-Geotechnical Engineering, 2011, 164(1): 41–49.
SIMONI A, BERTI M, GENERALI M, ELMI C, GHIROTTI M. Preliminary result from pore pressure monitoring on an unstable clay slope [J]. Engineering Geology, 2004, 73(1/2): 117–128.
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation item: Projects(2013CB036004, 2011CB710601) supported by the National Basic Research Program of China; Project(51178468) supported by the National Natural Science Foundation of China; Project(CX2011B096) supported by Hunan Provincial Postgraduate Innovation Program, China
Rights and permissions
About this article
Cite this article
Sun, Zb., Zhang, Db. Back analysis for soil slope based on measuring inclination data. J. Cent. South Univ. 19, 3291–3297 (2012). https://doi.org/10.1007/s11771-012-1406-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11771-012-1406-6