Enhancing Slope Stability With Vegetation

Hytiris, Nicholas

doi:10.21660/2015.18.4149

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…The dense root networks also act as a binder for soil particles and provide structural reinforcement by bonding the unstable soil mantles to the vegetation roots and the stable soils. The mechanical strengthening and structural integrity of the soil are therefore enhanced (Hytiris et al 2015;Zhu et al, 2018;Su et al 2020). The vegetation also alters the soil water conditions by increasing water infiltration into the soil, promoting the lateral percolation through the soil and accelerating the vertical evapotranspiration to the air (Sidle and Ochiai 2006;Ghestem et al 2011;Stokes et al 2014).…”

Section: Introductionmentioning

confidence: 99%

The use of geocell as soil stabilization and soil erosion countermeasures

Song

et al. 2021

Geomatics, Natural Hazards and Risk

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This work proposed a composite soil reinforcement method to support the vegetation growth and improve slope stability using geocell structures and wheat straws. Twelve physical models were developed for assessing rainfall intensities, slope steepness and geocell sizes on the soil erosion. The results showed that: (1) the geocell reinforced slopes maintained a good integrity, but the bare slope showed horizontal cracks; (2) the soil erosion was less than 40 g and more than 4000 g under the 50 mm/h and 100 mm/h rainfall intensities; the largest slope displacement was 2.5 mm and 7.5 mm, respectively; (3) the steep slopes showed a largest soil erosion of 5000 g and largest displacement of 8 cm, compared to 4500 g and 5.5 cm for gentle slopes; soil water contents were 40% and 30% for the steep and gentle slopes; (4) the measured soil erosion under the 100 mm/h rainfall was 4000 g and 5000 g for the small and large geocell reinforced slopes; the displacement of small geocell reinforced slopes were typically 1-2.5 cm smaller than large geocell reinforced slopes. It is concluded that the small geocell reinforced slope at a small inclination and low rainfall intensity has the best stability.

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Section: Introductionmentioning

confidence: 99%

The use of geocell as soil stabilization and soil erosion countermeasures

Song

et al. 2021

Geomatics, Natural Hazards and Risk

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“…Source: Abramson [4] Reference [5] enhanced slope stability or increased landslide resistance with vegetation and they note that vegetation roots had a stabilising effect on the slope, limited to the rooting depth.…”

Section: Fig 1 Types Of Mass Movement In Clay Slopesmentioning

confidence: 99%

On the Nailed Soil Slopes Research Development

Munawir¹

2017

GEOMATE

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The slope stability was researched over the past decades, understandings the behavior of nailed soil slopes, with their properties and characteristics, have guided to development of enhanced recognizing of the variation in nailed soil slopes parameters. Failures can arise over time, hence the identification of the necessities and the restrictions of laboratory and in situ testing for evaluating nailing parameter have to be deeply understood. Many researcher have enriched and refined the knowledges of the principles of soil nailing mechanics that associate soil behavior to slope stability and factor of safety. This paper is aimed to explore some of important state of the art development of nailed soil slope and analytical techniques extended by extensive investigation of the mechanics of slope stability analyses. The most significant effective parameter that play important role in slope safety factor in almost of many works are length, nailing angle, and distance between center to center of nails. Slope angle, connection of nailed head, the distance with toe and nail diameter were also the points that cannot be neglected in their study. Choosing the proper cable or pile element in the finite element modeling and the mobilized both axial and shear forces are also reviewed in this paper.

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“…Protection from landslide damage can be by structural or biological methods. Reforestation and land use improvement are easy and low-cost methods [10][11][12]. The stability of the slope can be increased using hydrological and mechanical effects [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Land Use on Slope Stability

Wettayavigromrat¹

2022

GEOMATE

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Forest cover in Thailand had been decreased from 53 to 28 percent in 1961 to 1989. Thai government issued logging ban policy from 1989 until present, then forest loss is significantly decreased. Forest land had been changed to plantation and community areas. Consequently, Thailand loss more than 534 lives and 73 million USD of casualties on landslide from 1970 to 2007. This study is aiming for analysis the effects of root reinforcement on the watershed area for slope stability. Three different types of land use on the Mae Phrong-Mae Phun watershed were selected for comparison. This area was suffered by landslide in 2006 causing the loss of 75 lives. The area loss more than 63% of the forest to orchards and residential areas from 2000 to 2016. Three areas of land uses; original forest (F201), orchard (A401), and an old landslide area (F201-M103) are selected. Soil strengths with root reinforcements and the factors of safety (F.S.) of each land use were calculated. The root spreads and root densities on 1×1m area with 0.1m soil thickness on slope are considered in the models. The severe condition of prolong and heavy rainfall as occurred in 2006 with the saturated soil condition was assumed. The forest area (F201) had the highest average F.S. of 1.730. The F.S. on F201-M103 and A401 areas are not significant different of 0.976 and 0.982, respectively. Using the small grid size in the model could help to identify locations for potential landslides in the study area.

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Enhancing Slope Stability With Vegetation

Cited by 6 publications

References 7 publications

The use of geocell as soil stabilization and soil erosion countermeasures

The use of geocell as soil stabilization and soil erosion countermeasures

On the Nailed Soil Slopes Research Development

Effect of Land Use on Slope Stability

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