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Tyoe of Slope Failure Identified from Pore Pressure and Moisture Content Measurements

Hakro, Muhammad Rehan and Harahap, Indra Sati Hamonangan (2015) Tyoe of Slope Failure Identified from Pore Pressure and Moisture Content Measurements. [Non-Citation Index Journal]

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Abstract

Rainfall-induced landslides occur in many parts of the world and causing a lot of the damages. For effective prediction of rainfall-induced landslides the comprehensive understanding of the failure process is necessary. Under different soil and hydrological conditions experiments were conducted to investigate and clarify the mechanism of slope failure. The failure in model slope was induced by sprinkling the rainfall on slope composed of sandy soil in small flume. Series of tests were conducted in small scale flume to better understand the failure process in sandy slopes. The moisture content was measured with advanced Imko TDR (Time Domain Reflectrometry) moisture sensors in addition to measurements of pore pressure with piezometers. The moisture content increase rapidly to reach the maximum possible water content in case of higher intensity of rainfall, and higher intensity of the rainfall causes higher erosion as compared to smaller intensity of the rainfall. The controlling factor for rainfall-induced flowslides was density of the slope, rather than intensity of the rainfall and during the flowslide the sudden increase in pore pressure was observed. Higher pore pressure was observed at the toe of the slope as compared to upper part of the slope

Item Type:Non-Citation Index Journal
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Academic Subject One:Civil Engineering
Departments / MOR / COE:Departments > Civil Engineering
ID Code:11647
Deposited By: Dr Indra S. H. Harahap
Deposited On:28 Apr 2015 02:54
Last Modified:28 Apr 2015 02:54

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