Project We Are Proud Of
Slope Protection & Erosion Control Works at the Ad Duqm Gas Supply Station (GSS)
Resilient Slope Protection for Critical Gas Infrastructure in Duqm
For the Ad Duqm Gas Supply Station, Marmol Integrated engineered and executed a complete slope protection and erosion control package across a challenging mountain section of the facility. The work demanded a system that could withstand harsh desert weather, wind-driven erosion, and long-term surface degradation—while ensuring the safety and reliability of one of the region's key gas transmission assets.
The result is a durable, geotechnically sound slope protection solution designed for long-term stability with minimal environmental disturbance.
Project Overview
The GSS plot is bordered by rugged rock formations and steep cut slopes. Without engineered protection, the exposed terrain risked progressive erosion that could threaten adjacent pipelines and facility structures.
The project scope combined design, supply, and full execution of an engineered slope protection system capable of performing under Duqm's extreme climate conditions.
Project Details
- Project: EPC Works for the Ad Duqm Gas Supply Station (GSS)
- Timeline: 2019-2020
- Client: OGC
- Subject: Design, Supply, and Execution of Slope Protection / Erosion Control Works for Mountain Area at GSS Plot
Challenges Identified
- Highly Weathered Mountain SlopesThe rock mass exhibited significant surface deterioration, accelerating erosion during seasonal winds and rare rainfall events.
- Proximity to Sensitive FacilitiesSlopes were located directly adjacent to gas pipelines, station boundaries, and access corridors—requiring zero compromise in safety.
- Large Surface Area with Irregular GeometryBroad, uneven rock faces required a uniform protection system that could adapt to natural contours.
- Extreme Desert ConditionsThe Duqm environment presents high temperature swings and abrasive winds, demanding a robust, long-life solution.
Solution Implemented:
1. Geotechnical Assessment & Site Profiling
- •Detailed mapping of rock hardness and weakness zones
- •Bench geometry evaluation
- •Identification of erosion hotspots
2. Engineered Slope Protection System
- •Application of a continuous surface protection layer across the mountain face
- •Improved surface stability to counter raveling and shallow failures
- •Reinforced zones where rock was most fractured
3. Erosion Control Measures
- •Creation of a uniform protective barrier to resist wind and water erosion
- •Integration with existing drainage paths to minimize water concentration
4. Controlled Execution with Minimal Disruption
- •Installation carried out within active plant limits
- •Careful staging to avoid interfering with pipeline operations
Project Outcomes: Integrated Slope Protection for Duqm Gas Supply Station (GSS)
Reliable Slope Stability
The protected rock face now withstands harsh desert exposure and retains structural integrity.
Reduced Erosion and Surface Loss
The system prevents continuous weathering, improving long-term slope performance.
Protection of Gas Infrastructure
Stabilized slopes ensure safer operation around pipelines and fencing corridors.
Lower Maintenance Requirement
With stabilized surfaces, future interventions are significantly reduced.
Improved Stormwater Management
Integrated drainage layers and engineered water pathways reduced surface runoff and prevented localized erosion during peak rainfall events.
Reduced Environmental Impact
The phased, in-slope installation approach minimized earth disturbance and emissions, aligning with the plant's operational sustainability goals.
Sustainability Development Goals (SDGs) Alignment
Related Services
Consulting Engineering
Vegetative Erosion Control Solutions
Non-Vegetative Erosion Control
Geohazard Mitigation
Slope Stabilization
Foundations & Ground Engineering
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