Engineering Geological Mapping at Politeknik Mersing
Jabatan Kerja Raya Malaysia engaged Geotechnica Sdn Bhd to assess failed slopes at Politeknik Mersing, Johor. Desk study and field assessment characterised the site's geology and fill materials, with slope stability analysis revealing a factor of safety below JKR's recommended threshold.
CLIENT
YEAR
JKR Cawangan Cerun / GoGEO Engineering
2022
Project Overview
Scope, conditions & requirements
Project Scope
Geological assessment of failed slopes at Politeknik Mersing, Johor, to inform remediation for JKR Malaysia.
Site Conditions
The site is characterised by phyllite, slate, shale and sandstone of the Mersing Formation, with signs of distress observed across the site, likely from ineffective drainage and mixed-grain, predominantly clay fill material.
Investigation Requirements
Desk study and field assessment were needed to characterise site geology, followed by slope stability analysis at two affected sites.
Our Approach
How the slopes were assessed
Desk Study
Reviewed existing geological records to establish regional context ahead of fieldwork.
Field Assessment
Site inspection characterising the area's geology (phyllite, slate, shale, sandstone) and identifying signs of distress.
Slope Stability Analysis
Stability analyses performed at two affected sites to calculate factor of safety.
Key Findings
What the assessment showed
Finding 1
Signs of distress across the site were likely caused by ineffective drainage systems and mixed-grain, predominantly clay fill material.
Finding 2
Slope stability analyses at both sites resulted in a factor of safety lower than JKR's recommendations.
Project Outcomes
How the findings are used
The report provided JKR with conclusions and recommendations based on the assessment and stability analyses, guiding remediation to address the below-threshold factor of safety at Politeknik Mersing.