Project: Geotechnical Investigation, Detailed Design and Slope Stabilization Measure for Unstable Roadside Slope at Tulsi Bhanjyang, Siddhartha Highway, Nepal

Client: Department of Roads

Year: 2025

Status: Completed

GEOINFRA was responsible for conducting a detailed geotechnical investigation and preparing slope stabilization designs for a vulnerable roadside slope section. The major tasks completed include:

• Desk study of existing data, maps, and previous investigation reports.
• Topographical survey of the slope with 150m uphill and 50m downhill coverage, with 1m contour intervals.
• General slope inspection, slope hazard assessment, geological and seismological studies.
• Risk level assessment and evaluation of subsurface conditions.
• Electrical Resistivity Tomography (ERT) survey—150m horizontal and 240m vertical—to identify subsurface features and weak zones.
• Drilling of one confirmatory borehole up to 20m depth and conducting required field and laboratory tests.
• Interpretation of collected data and preparation of detailed slope stabilization design, including drawings and quantity estimates.