IIARD INTERNATIONAL JOURNAL OF GEOGRAPHY AND ENVIRONMENTAL MANAGEMENT (IJGEM )
E-ISSN 2504-8821
P-ISSN 2695-1878
VOL. 9 NO. 6 2023
DOI: https://doi.org/10.56201/ijgem.v9.no6.2023.pg120.135
Geotechnical Assessment of Umuezealaibe, Isu-Njaba Gully
Erosion Site in Isu Local Government Area, Imo State of Nigeria
Njoku,M. U. Owuama, C. O Verla, E. N.
Abstract
The geotechnical assessment of the Umuezealaibe, Isu-Njaba gully erosion site represents a
comprehensive investigation into the factors contributing to the instability of this critical
geological feature. Through a combination of rigorous field surveys, extensive laboratory
analyses, and advanced stability assessments, this study aimed to unravel the underlying
causes of the erosion phenomenon. Representative soil samples were collected using soil auger
and subjected to a battery of tests, including index property analyses, sieve analyses for grain
size distribution, and shear strength tests. The result of the study revealed the following:
topography of the land shows a high sloppiness which makes it highly susceptible to erosion,
predominantly that of weak clay and loose sandy clays, specific gravity of the collected samples
ranges from 2.59 to 2.68, averaging at 2.65. The soil exhibited average natural moisture
content and bulk unit weight, measuring 15.0% and 1.93 mg/m
keywords: Gully erosion, Geotechnical, Exogenic, Endogenic and Erodibility.
References:
Nwankwoala, H.O & Igbokwe, T (2019). Geotechnical Assessment for Gully Erosion Control
and Management in Agulu-Nanka, Southeastern Nigeria. Middle East Journal of
Scientific Research, 27(8): 644-654 [accessed Nov 21 2023].
Nwankwoala, Hycienth & Igbokwe, Tochukwu. (2020). Assessment and Mapping of Gully
Erosion Geo- hazards in Agulu -Nanka, Southeastern Nigeria: An Integrated
Geotechnical and GIS Approach. 146. 236 - 264.
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