Modeling study on influence of surface pore water on slope stability of mountain tunnel


In order to solve the problems of slope strength reduction and stability risks caused by excessive surface water in mountain tunnels, the influence of surface pore water on slope stability is deeply studied. This article first analyzes the seepage field of unsaturated soil. Taking the transient seepage field as the object, the distribution of the soil seepage field during the two-stage precipitation process is studied. Secondly, the existing dimensionless second-order partial differential equation is solved by Laplace transform to calculate the distribution of transient seepage field. A finite element model of rock and soil seepage field under different rainfall intensities was established, and the influence of pore water content on slope stability was quantitatively analyzed. The results show that as the anti-sliding force decreases, the pore water content increases, the pressure increases, the suction force of the matrix decreases, the shear strength decreases, and the slope safety factor decreases, which leads to the plastic deformation of the slope.

This is a preview of subscription content, access via your institution.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10


  1. Alessio P (2019) Spatial variability of saturated hydraulic conductivity and measurement-based intensity-duration thresholds for slope stability, Santa Ynez Valley, CA. Geomorphology 342(OCT.1):103–116

    Article  Google Scholar 

  2. Arya IW, Wiraga IW, Dwipa IGAGS, Pramana IMW (2020) Effect of pore water pressure on soil crack against safety factor of slope stability. J Phys Conf Ser 1450:012014

    Article  Google Scholar 

  3. Bowa VM, Xia Y (2019) Influence of counter-tilted failure surface angle on the stability of rock slopes subjected to block toppling failure mechanisms. Bull Eng Geol Environ 78(4):2535–2550

    Article  Google Scholar 

  4. Feng SJ, Chen ZW, Chen HX, Zheng QT, Liu R (2018) Slope stability of landfills considering leachate recirculation using vertical wells. Eng Geol 241:76–85

    Article  Google Scholar 

  5. Hao W, Zhang P (2019) Numerical simulation of pore water pressure variation of building foundation in shallow coastal waters. J Coast Res 93:257–263

    Article  Google Scholar 

  6. Kamchoom V, Leung AK (2018) Hydro-mechanical reinforcements of live poles to slope stability. Soils and Foundations -Tokyo 58(6):1423–1434

    Article  Google Scholar 

  7. Karlis K, Jean-Frank W, Tomas S, Philip B (2018) Physically based hydrogeological and slope stability modeling of the Turaida castle mound. Landslides 15:2267–2278

    Article  Google Scholar 

  8. Khanna R, Datta M, Ramana GV (2019) Influence of core thickness on stability of downstream slope of earth and rockfill dams under end-of-construction and steady-state-seepage: a comparison. Int J Geotech Eng 13(1–2):25–31

    Google Scholar 

  9. Lan H, Wang D, He S, Fang Y, Chen W, Zhao P et al (2020) Experimental study on the effects of tree planting on slope stability. Landslides 17(4):1021–1035

    Article  Google Scholar 

  10. Li J, He X (2019) Simulation for frost heaving damage of concrete lining channels by using XFEM. J Coast Res 93:264–273

    Article  Google Scholar 

  11. Ma XJ, Wang W (2015) Composite model for dynamic pore water pressure developing process of soft soil under cyclic loading. Journal of Mechanical Engineering Research and Developments 38(2):12–17

    Google Scholar 

  12. Mulyono A, Subardja A, Ekasari I, Lailati M, Sudirja R, Ningrum W (2018) The hydromechanics of vegetation for slope stabilization. Iop Conference 118, 012038

  13. Pan Z, Zhang P, Luo Z, Yang H (2020) Research on WSN low energy routing algorithm based on geographic location. Computer Simulation 37(6:305–309

    Google Scholar 

  14. Reddy KR, Kumar G, Giri RK (2018) System effects on bioreactor landfill performance based on coupled hydro-bio-mechanical modeling. Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management 22(1):04017024.1–04017024.15

    Google Scholar 

  15. Takashi O, Sumio M, Otto LJ, Shiho A, Kazutoki A (2018) The response of pore water pressure to snow accumulation on a low-permeability clay landslide. Eng Geol 242:130–141

    Article  Google Scholar 

  16. Wang M, Zhang D, Cheng Y et al (2019) Assessing performance of porous pavements and bioretention cells for stormwater management in response to probable climatic changes. J Environ Manag 243:157–167

    Article  Google Scholar 

  17. Xu JS, Yang XL (2018) Effects of seismic force and pore water pressure on three dimensional slope stability in nonhomogeneous and anisotropic soil. KSCE J Civ Eng 22(5):1720–1729

    Article  Google Scholar 

  18. Zhang F, Gao Y, Leshchinsky D, Yang S, Dai G (2018) 3d effects of turning corner on stability of geosynthetic-reinforced soil structures. Geotext Geomembr 46(4):367–376

    Article  Google Scholar 

Download references


The authors received key research projects from Gansu Science and Technology Department, China (No. 17YF1FM148) and innovation ability improvement project from Gansu Provincial Department of Education, China (No. 2019A-118).

Author information



Corresponding author

Correspondence to Binwei Zhang.

Ethics declarations

Conflict of interest

The authors declare that they have no competing interests.

Additional information

This article is part of the Topical Collection on Geological Modeling and Geospatial Data Analysis.

Responsible Editor: Keda Cai

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Zhang, B., Liu, W. Modeling study on influence of surface pore water on slope stability of mountain tunnel. Arab J Geosci 14, 313 (2021).

Download citation


  • Mountain tunnel
  • Pore water
  • Slope stability
  • Internal seepage
  • Transient flow field