Monitoring soil slope of tropical residual soil by using tree water uptake method

Abstract

From years to years, the construction of residential buildings at hill-site in Malaysia will lead to various fatalities event. Cutting down of trees can vanish the reinforcement provided by the root of tree to the soil by means of weakening the soil shear strength due to the increasing value of pore water pressure and decreasing value of effective stress. Root of a tree plays an important part in preventing landslides event to occur either it is by modifying the soil moisture regime via evapotranspiration or providing root reinforcement within the soils. Water uptake by plant roots is fundamental in many applications agriculture. This study is conducted to explores the vegetation approach by using tropical mature tree and monitors the activeness of the root zone of a tree that lies at the top of the slope by which the data of the matric suction generated within this section of the slope is recorded by using Tensiometer and applied to the slope stability problem to increase the value of factor of safety (FOS). Based on the research conducted, it is proven that by using tree water uptake method can increase the FOS of the slope up to 57%. In retrospect, the method used in preventing the landslides event to occur at the slope is economical and eco-friendly which can be implemented globally as this is the most nature method to prevent landslide and required low cost compared to other methods.

Influence of Alstonia Angustiloba Tree Water Uptake on Slope Stability: A Case Study at the Unsaturated Slope, Pahang, Malaysia

“…British Soil Classi cation System (BSCS), the soil at the site study at the eld can be categorized as SILT of high plasticity (MHS) with a relative density of 2.74. As stated by Zaini et. al., (2020a), owing to a wide modi cation of metallurgy, the relative density of tropical residual soils is commonly low or uncommonly high.…”

“…al., 2021b). According to Zaini et. al., (2020a), each station of tensiometers was located at a distance of 1.1 m (0.1h), 2.2 m (0.2h) and 4.4 m (0.4h) from the tree.…”

“…In most nations around the globe, residual soil exists commonly in equatorial locations, where frequent precipitation and mild climate are bene cial to erosion, which culminates in profound residual soil pro les (Schiavon et. al., 2019;Zaini et. al., 2020a).…”

The Application of Unmanned Aerial Vehicle (UAV) For Slope Mapping at Gambang Damai Residents, Pahang: A Case Study

“…Engineers and geotechnical researchers may be able to work together more quickly and safely through the utilization of UAVs since they enhance their ability to detect possible slope failures, critical slopes, and slope hazards, as stated by Zolkepli et al [10], Ishak, & Zolkepli [11], Zolkepli et al [12], and Bar et al [13]. UAV flight technology has enabled the acquisition of high-resolution, real-time aerial pictures for photogrammetry to detect the location of potential slope hazards [14], [15].…”

Unmanned Aerial Vehicle (UAV)-Based for Slope Mapping and the Determination of Potential Slope Hazard

“…These problems usually happened in term of slope mapping and slope monitoring works [11]- [13]. A stable slope is the ability of slope to sustain its sustainability [14]- [20].…”