Investigating the efficiency of micropiles in the stability of soil slopes; a case study

Document Type : Research Paper

Authors

1 Faculty of Civil Engineering and Resource Management, AGH UST, Krakow-30065, Poland.

2 Department of Mining Engineering, University of Zanjan, Zanjan, Iran.

3 Asfalt Tous Company, Tehran, Iran.

4 JV tractebel Consulting Company, Beirut-10999, Lebanon.

5 Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing-100029, China.

6 University of Chinese Academy of Sciences, Beijing-100049, China.

7 Faculty of Mining Surveying and Environmental Engineering, AGH UST, Krakow-30065, Poland.

Abstract

Landslides are a common geological hazard that can cause harm to human lives and property. Effective measures are necessary to prevent landslides and reduce their impact. This study investigates the effectiveness of micropiles in stabilizing a soil slope against landslides. The researchers used a computer simulation based on an example from the Plaxis software manual to model the soil slope. The simulation results showed that the safety factor, a measure of the stability of the slope, was 9% higher in the 3D model than in the 2D model when all three rows of nails were applied. In the 3D model of the soil slope, the researchers suggested using a pattern of steel pipes as micropiles to increase the safety factor of the slope and prevent landslides. It was found that a simple arrangement of steel pipes in the middle of the slope was able to stabilize the slope and result in the same level of stability as all three rows of nails. The results showed that this micropile system could be used as a low-cost and easily implementable alternative method for stabilizing soil slopes. The system is a fast and efficient way to prevent landslides, making it a potentially valuable option for those seeking to reduce the risk of landslides.

Keywords

Main Subjects

[1]          S.-W. Sun, F.-Q. Chen, W. Wang, Mechanism and remediation of a seismically induced landslide with a potential for deep seated sliding, Soil Mechanics and Foundation Engineering, Vol. 52, No. 3, pp. 155-162, 2015.
[2]          P. Wallemacq, R. Below, D. McClean, 2018, Economic losses, poverty & disasters: 1998-2017, United Nations Office for Disaster Risk Reduction,
[3]          S. Guo, S. Qi, Numerical study on progressive failure of hard rock samples with an unfilled undulate joint, Engineering Geology, Vol. 193, pp. 173-182, 2015.
[4]          S. Guo, S. Qi, Z. Zhan, L. Ma, E. G. Gure, S. Zhang, Numerical study on the progressive failure of heterogeneous geomaterials under varied confining stresses, Engineering Geology, Vol. 269, pp. 105556, 2020.
[5]          S. Guo, S. Qi, G. Yang, S. Zhang, C. Saroglou, An analytical solution for block toppling failure of rock slopes during an earthquake, Applied Sciences, Vol. 7, No. 10, pp. 1008, 2017.
[6]          S. Guo, S. Qi, Y. Zou, B. Zheng, Numerical studies on the failure process of heterogeneous brittle rocks or rock-like materials under uniaxial compression, Materials, Vol. 10, No. 4, pp. 378, 2017.
[7]          S. Guo, S. Qi, Z. Zhan, B. Zheng, Plastic-strain-dependent strength model to simulate the cracking process of brittle rocks with an existing non-persistent joint, Engineering Geology, Vol. 231, pp. 114-125, 2017.
[8]          B. Xu, Landslide Control and Analysis, Beijing: China Railway Publishing House, 2001.
[9]          Z. Chen, Z. Wang, H. Xi, Z. Yang, L. Zou, Z. Zhou, C. Zhou, Recent advances in high slope reinforcement in China: Case studies, Journal of Rock Mechanics and Geotechnical Engineering, Vol. 8, No. 6, pp. 775-788, 2016.
[10]        K. T. Chau, C. Shen, X. Guo, Nonlinear seismic soil–pile–structure interactions: shaking table tests and FEM analyses, Soil Dynamics and Earthquake Engineering, Vol. 29, No. 2, pp. 300-310, 2009.
[11]        Y. Mascarucci, S. Miliziano, A. Mandolini, A numerical approach to estimate shaft friction of bored piles in sands, Acta Geotechnica, Vol. 9, pp. 547-560, 2014.
[12]        D. Bruce, I. Juran, Drilled and Grouted Micropiles: State-of-Practice Review, Volume I: Background, Classifications, Cost, 1997.
[13]        S. Xiao, K. Cui, D. Zhou, J. Feng, Analysis of a new combined micropile structure for preventing slope slippage and its application in a practical project,  in: ICCTP 2009: Critical Issues In Transportation Systems Planning, Development, and Management, Eds., pp. 1-11, 2009.
[14]        G. Ghataora, L. Lee, U. Ling, Changes in properties of clay surrounding cast in situ piles, Geotechnical and Geological Engineering, Vol. 29, pp. 57-63, 2011.
[15]        C.-G. Qi, G.-B. Liu, Y. Wang, Y.-B. Deng, A design method for plastic tube cast-in-place concrete pile considering cavity contraction and its validation, Computers and Geotechnics, Vol. 69, pp. 262-271, 2015.
[16]        B. Xiang, L. Zhang, L.-R. Zhou, Y.-Y. He, L. Zhu, Field lateral load tests on slope-stabilization grouted pipe pile groups, Journal of Geotechnical and Geoenvironmental Engineering, Vol. 141, No. 4, pp. 04014124, 2015.
[17]        M. Aboutabikh, A. Soliman, M. El Naggar, Performance of hollow bar micropiles using green grout incorporating treated oil sand waste, Journal of Building Engineering, Vol. 27, pp. 100964, 2020.
[18]        H. Bayesteh, M. A. Fakharnia, M. Khodaparast, Performance of driven grouted micropiles: full-scale field study, International Journal of Geomechanics, Vol. 21, No. 2, pp. 04020250, 2021.
[19]        J. Wang, J. Zhang, Preliminary engineering application of microseismic monitoring technique to rockburst prediction in tunneling of Jinping II project, Journal of Rock Mechanics and Geotechnical Engineering, Vol. 2, No. 3, pp. 193-208, 2010.
[20]        M. Mohammadi, A. Farajpour, A. Moradi, M. Hosseini, Vibration analysis of the rotating multilayer piezoelectric Timoshenko nanobeam, Engineering Analysis with Boundary Elements, Vol. 145, pp. 117-131, 2022.
[21]        M. Mohammadi, A. Rastgoo, Primary and secondary resonance analysis of FG/lipid nanoplate with considering porosity distribution based on a nonlinear elastic medium, Mechanics of Advanced Materials and Structures, Vol. 27, No. 20, pp. 1709-1730, 2020.
[22]        M. Mohammadi, M. Hosseini, M. Shishesaz, A. Hadi, A. Rastgoo, Primary and secondary resonance analysis of porous functionally graded nanobeam resting on a nonlinear foundation subjected to mechanical and electrical loads, European Journal of Mechanics-A/Solids, Vol. 77, pp. 103793, 2019.
[23]        M. Mohammadi, A. Rastgoo, Nonlinear vibration analysis of the viscoelastic composite nanoplate with three directionally imperfect porous FG core, Structural Engineering and Mechanics, An Int'l Journal, Vol. 69, No. 2, pp. 131-143, 2019.
[24]        A. Farajpour, A. Rastgoo, M. Mohammadi, Vibration, buckling and smart control of microtubules using piezoelectric nanoshells under electric voltage in thermal environment, Physica B: Condensed Matter, Vol. 509, pp. 100-114, 2017.
[25]        A. Farajpour, M. H. Yazdi, A. Rastgoo, M. Loghmani, M. Mohammadi, Nonlocal nonlinear plate model for large amplitude vibration of magneto-electro-elastic nanoplates, Composite Structures, Vol. 140, pp. 323-336, 2016.
[26]        A. Farajpour, M. H. Yazdi, A. Rastgoo, M. Mohammadi, A higher-order nonlocal strain gradient plate model for buckling of orthotropic nanoplates in thermal environment, Acta Mechanica, Vol. 227, pp. 1849-1867, 2016.
[27]        M. Mohammadi, M. Safarabadi, A. Rastgoo, A. Farajpour, Hygro-mechanical vibration analysis of a rotating viscoelastic nanobeam embedded in a visco-Pasternak elastic medium and in a nonlinear thermal environment, Acta Mechanica, Vol. 227, pp. 2207-2232, 2016.
[28]        M. R. Farajpour, A. Rastgoo, A. Farajpour, M. Mohammadi, Vibration of piezoelectric nanofilm-based electromechanical sensors via higher-order non-local strain gradient theory, Micro & Nano Letters, Vol. 11, No. 6, pp. 302-307, 2016.
[29]        M. Baghani, M. Mohammadi, A. Farajpour, Dynamic and stability analysis of the rotating nanobeam in a nonuniform magnetic field considering the surface energy, International Journal of Applied Mechanics, Vol. 8, No. 04, pp. 1650048, 2016.
[30]        M. Goodarzi, M. Mohammadi, M. Khooran, F. Saadi, Thermo-mechanical vibration analysis of FG circular and annular nanoplate based on the visco-pasternak foundation, Journal of Solid Mechanics, Vol. 8, No. 4, pp. 788-805, 2016.
[31]        H. Asemi, S. Asemi, A. Farajpour, M. Mohammadi, Nanoscale mass detection based on vibrating piezoelectric ultrathin films under thermo-electro-mechanical loads, Physica E: Low-dimensional Systems and Nanostructures, Vol. 68, pp. 112-122, 2015.
[32]        M. Safarabadi, M. Mohammadi, A. Farajpour, M. Goodarzi, Effect of surface energy on the vibration analysis of rotating nanobeam, 2015.
[33]        M. Goodarzi, M. Mohammadi, A. Gharib, Techno-Economic Analysis of Solar Energy for Cathodic Protection of Oil and Gas Buried Pipelines in Southwestern of Iran, in Proceeding of, https://publications.waset.org/abstracts/33008/techno-economic-analysis-of …, pp.
[34]        M. Mohammadi, A. A. Nekounam, M. Amiri, The vibration analysis of the composite natural gas pipelines in the nonlinear thermal and humidity environment, in Proceeding of, https://civilica.com/doc/540946/, pp.
[35]        M. Goodarzi, M. Mohammadi, M. Rezaee, Technical Feasibility Analysis of PV Water Pumping System in Khuzestan Province-Iran, in Proceeding of, https://publications.waset.org/abstracts/18930/technical-feasibility …, pp.
[36]        M. Mohammadi, A. Farajpour, A. Moradi, M. Ghayour, Shear buckling of orthotropic rectangular graphene sheet embedded in an elastic medium in thermal environment, Composites Part B: Engineering, Vol. 56, pp. 629-637, 2014.
[37]        M. Mohammadi, A. Moradi, M. Ghayour, A. Farajpour, Exact solution for thermo-mechanical vibration of orthotropic mono-layer graphene sheet embedded in an elastic medium, Latin American Journal of Solids and Structures, Vol. 11, pp. 437-458, 2014.
[38]        M. Mohammadi, A. Farajpour, M. Goodarzi, F. Dinari, Thermo-mechanical vibration analysis of annular and circular graphene sheet embedded in an elastic medium, Latin American Journal of Solids and Structures, Vol. 11, pp. 659-682, 2014.
[39]        M. Mohammadi, A. Farajpour, M. Goodarzi, Numerical study of the effect of shear in-plane load on the vibration analysis of graphene sheet embedded in an elastic medium, Computational Materials Science, Vol. 82, pp. 510-520, 2014.
[40]        A. Farajpour, A. Rastgoo, M. Mohammadi, Surface effects on the mechanical characteristics of microtubule networks in living cells, Mechanics Research Communications, Vol. 57, pp. 18-26, 2014.
[41]        S. R. Asemi, M. Mohammadi, A. Farajpour, A study on the nonlinear stability of orthotropic single-layered graphene sheet based on nonlocal elasticity theory, Latin American Journal of Solids and Structures, Vol. 11, pp. 1541-1546, 2014.
[42]        M. Goodarzi, M. Mohammadi, A. Farajpour, M. Khooran, Investigation of the effect of pre-stressed on vibration frequency of rectangular nanoplate based on a visco-Pasternak foundation, 2014.
[43]        S. Asemi, A. Farajpour, H. Asemi, M. Mohammadi, Influence of initial stress on the vibration of double-piezoelectric-nanoplate systems with various boundary conditions using DQM, Physica E: Low-dimensional Systems and Nanostructures, Vol. 63, pp. 169-179, 2014.
[44]        S. Asemi, A. Farajpour, M. Mohammadi, Nonlinear vibration analysis of piezoelectric nanoelectromechanical resonators based on nonlocal elasticity theory, Composite Structures, Vol. 116, pp. 703-712, 2014.
[45]        M. Mohammadi, M. Ghayour, A. Farajpour, Free transverse vibration analysis of circular and annular graphene sheets with various boundary conditions using the nonlocal continuum plate model, Composites Part B: Engineering, Vol. 45, No. 1, pp. 32-42, 2013.
[46]        M. Mohammadi, M. Goodarzi, M. Ghayour, A. Farajpour, Influence of in-plane pre-load on the vibration frequency of circular graphene sheet via nonlocal continuum theory, Composites Part B: Engineering, Vol. 51, pp. 121-129, 2013.
[47]        M. Mohammadi, A. Farajpour, M. Goodarzi, R. Heydarshenas, Levy type solution for nonlocal thermo-mechanical vibration of orthotropic mono-layer graphene sheet embedded in an elastic medium, Journal of Solid Mechanics, Vol. 5, No. 2, pp. 116-132, 2013.
[48]        M. Mohammadi, A. Farajpour, M. Goodarzi, H. Mohammadi, Temperature Effect on Vibration Analysis of Annular Graphene Sheet Embedded on Visco-Pasternak Foundati, Journal of Solid Mechanics, Vol. 5, No. 3, pp. 305-323, 2013.
[49]        S. Ghannadpour, B. Mohammadi, J. Fazilati, Bending, buckling and vibration problems of nonlocal Euler beams using Ritz method, Composite Structures, Vol. 96, pp. 584-589, 2013.
[50]        M. Danesh, A. Farajpour, M. Mohammadi, Axial vibration analysis of a tapered nanorod based on nonlocal elasticity theory and differential quadrature method, Mechanics Research Communications, Vol. 39, No. 1, pp. 23-27, 2012.
[51]        A. Farajpour, A. Shahidi, M. Mohammadi, M. Mahzoon, Buckling of orthotropic micro/nanoscale plates under linearly varying in-plane load via nonlocal continuum mechanics, Composite Structures, Vol. 94, No. 5, pp. 1605-1615, 2012.
[52]        M. Mohammadi, M. Goodarzi, M. Ghayour, S. Alivand, Small scale effect on the vibration of orthotropic plates embedded in an elastic medium and under biaxial in-plane pre-load via nonlocal elasticity theory, 2012.
[53]        A. Farajpour, M. Mohammadi, A. Shahidi, M. Mahzoon, Axisymmetric buckling of the circular graphene sheets with the nonlocal continuum plate model, Physica E: Low-dimensional Systems and Nanostructures, Vol. 43, No. 10, pp. 1820-1825, 2011.
[54]        A. Farajpour, M. Danesh, M. Mohammadi, Buckling analysis of variable thickness nanoplates using nonlocal continuum mechanics, Physica E: Low-dimensional Systems and Nanostructures, Vol. 44, No. 3, pp. 719-727, 2011.
[55]        H. Moosavi, M. Mohammadi, A. Farajpour, S. Shahidi, Vibration analysis of nanorings using nonlocal continuum mechanics and shear deformable ring theory, Physica E: Low-dimensional Systems and Nanostructures, Vol. 44, No. 1, pp. 135-140, 2011.
[56]        M. Mohammadi, M. Ghayour, A. Farajpour, Analysis of free vibration sector plate based on elastic medium by using new version differential quadrature method, Journal of solid mechanics in engineering, Vol. 3, No. 2, pp. 47-56, 2011.
[57]        A. Farajpour, M. Mohammadi, M. Ghayour, Shear buckling of rectangular nanoplates embedded in elastic medium based on nonlocal elasticity theory, in Proceeding of, www.civilica.com/Paper-ISME19-ISME19_390.html, pp. 390.
[58]        M. Mohammadi, A. Farajpour, A. R. Shahidi, Higher order shear deformation theory for the buckling of orthotropic rectangular nanoplates using nonlocal elasticity, in Proceeding of, www.civilica.com/Paper-ISME19-ISME19_391.html, pp. 391.
[59]        M. Mohammadi, A. Farajpour, A. R. Shahidi, Effects of boundary conditions on the buckling of single-layered graphene sheets based on nonlocal elasticity, in Proceeding of, www.civilica.com/Paper-ISME19-ISME19_382.html, pp. 382.
[60]        M. Mohammadi, M. Ghayour, A. Farajpour, Using of new version integral differential method to analysis of free vibration orthotropic sector plate based on elastic medium, in Proceeding of, www.civilica.com/Paper-ISME19-ISME19_497.html, pp. 497.
[61]        M. Mohammadi, A. Farajpour, A. Rastgoo, Coriolis effects on the thermo-mechanical vibration analysis of the rotating multilayer piezoelectric nanobeam, Acta Mechanica, Vol. 234, No. 2, pp. 751-774, 2023/02/01, 2023.
[62]        C. Fan, Application of finite element procedures on the slope stability analysis in stormy condition, Sino-Geotech, Vol. 95, pp. 61-74, 2003.
[63]        A. Komak Panah, H. Jalilian Mashhoud, J.-H. Yin, Y. Fai Leung, Shaking table investigation of effects of inclination angle on seismic performance of micropiles, International Journal of Geomechanics, Vol. 18, No. 11, pp. 04018142, 2018.
Volume 54, Issue 1
March 2023
Pages 127-139
  • Receive Date: 27 January 2023
  • Revise Date: 13 February 2023
  • Accept Date: 13 February 2023