Effect of rock fragments on pore water pressure and slope stability at a hillslope

Muhammad Mukhlisin, Syahdatul Isnain Naam

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    This study investigates the effects of rock fragments on pore water pressure and safety factor of a slope. The study was conducted using computer software SEEP/W and SLOPE/W for a slope with and without rock fragment in order to get value for the pore water pressure and safety factor of the slope. The study also been carried out on the rock fragment characteristics such as position (top, middle and bottom) and size (large, medium and small) to find out the effects of rock fragments on hydrologic response and slope stability. The results show that the rock fragments obstruct water flow on the slope and increase the pore water pressure. However, higher pore water pressure can cause the slope to become less stable. These indicate that the safety factor for the slope with rock fragment is lower than slope without the rock fragment. The results also showed that pore water pressure and seepage flow response are affected by different position of the rock fragment. At a lower position of the rock fragments, the pore water pressure is the highest. Therefore, the safety factors are smaller compared to other rock positions. On the other hand, the results show that the pore water pressure and safety factor of the slope are less influenced by the size of rock fragments.

    Original languageEnglish
    Pages (from-to)337-343
    Number of pages7
    JournalJournal of the Geological Society of India
    Volume86
    Issue number3
    DOIs
    Publication statusPublished - 29 Sep 2015

    Fingerprint

    slope stability
    hillslope
    porewater
    rock
    safety
    effect
    seepage
    water flow
    software

    Keywords

    • pore water pressure
    • rainfall
    • rock fragments
    • soil slope stability analysis

    ASJC Scopus subject areas

    • Geology

    Cite this

    Effect of rock fragments on pore water pressure and slope stability at a hillslope. / Mukhlisin, Muhammad; Naam, Syahdatul Isnain.

    In: Journal of the Geological Society of India, Vol. 86, No. 3, 29.09.2015, p. 337-343.

    Research output: Contribution to journalArticle

    Mukhlisin, Muhammad ; Naam, Syahdatul Isnain. / Effect of rock fragments on pore water pressure and slope stability at a hillslope. In: Journal of the Geological Society of India. 2015 ; Vol. 86, No. 3. pp. 337-343.
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