Characterization the geotechnical properties of a Malaysian granitic residual soil grade V

Abstract

Residual soils are produced from weathering of rocks and commonly found in tropical humid areas. The geotechnical properties of residual soils are a function of the parent rock, the degree of weathering, and climate which vary from region to region. A thorough quantification of the geotechnical characteristics of residual soils is required for a safe and economic structure design. This study attempts to summarize a series of important geotechnical properties of a Malaysian granitic residual soil grade V which determine the suitability and ability of the soil for construction including particles size distribution, specific gravity, plastic index, soil water characteristic curve, and shear strength. The findings were compared with geotechnical properties of other residual soils which were reported previously. The results showed weathering grade and the percentage of fine particles are the two important factors in controlling the geotechnical properties of residual soils.

Pencirian Geohazad Tanah Runtuh Pendam Lama di Kawasan Bukit Fraser, Pahang

“…Permukaan batuan granit mengalami proses luluhawa yang tinggi, menghasilkan tanah baki. Keadaan ini sesuai untuk berlakunya tanah runtuh (Hirata & Chigira 2019;Saffari et al 2019;Wu et al 2022). Lapisan tanah baki tebal meliputi lebih daripada 80% kawasan tanah di Malaysia (Saffari et al 2019), lebih daripada 75% permukaan di Malaysia diliputi oleh tanah baki terurai daripada granit, sedimen dan metasedimen serta lebih kurang 50% permukaan tanah di Semenanjung Malaysia terdiri daripada batuan granit (Abdul Samad et al 2018).…”

The Application of Porous Material in the Capillary Barrier System for Residual Soil Slope Stabilization

“…𝐺 𝑠 𝛾 𝑤 𝛾 𝑑 (1) The porosity (n) of residual soil is described as the number of pore spaces in a soil mass and it is primarily influenced by the soil structure. The soil porosity was calculated from the void ratio (e), as follows:…”

“…The weathering process has resulted in soil heterogeneity, which is common to residual soil, and this type of soil accounts for more than 75 % of the surface deposits in Peninsular Malaysia [1,2]. Soil heterogeneities in tropical residual soil consist of weaker materials due to the weathering process.…”

Engineering Characterization of Subgrade Soils of Jimma Town, Ethiopia, for Roadway Design

“…In the soils, matter and energy exchange with the atmosphere, biosphere, and hydrosphere [2]. The speed of weathering for the formation of soil and the percentage of fine particles are the two crucial factors that can affect the geotechnical properties of soils [3]. Soils are naturally occurring materials that play a vital role in the design, construction, and performance of civil engineering structures.…”

“…The oldest one was proposed by Terzaghi et al [12], where clay is classified as soft soil when the unconfined compressive strength is less than 50 kPa. Das [13] suggested that a void ratio of soft soil is in the range of 0.9-1.4, and the dry unit weight ranges from 11.5-14.5 kN/m 3 . Soft soil has a coefficient of permeability that is less than 1.0 × 10 −7 m/s, according to Kempfert and Gebreselassie [14].…”