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What is the primary function of drainage pipes in subsurface drainage systems?

To enhance soil aeration

To remove excess groundwater

The primary function of drainage pipes in subsurface drainage systems is to remove excess groundwater. In many civil engineering projects, managing groundwater is crucial to prevent saturation of soil, which can lead to structural issues, erosion, and reduced bearing capacity. Subsurface drainage systems utilize pipes to collect and transport excess water away from areas where it can cause problems, effectively lowering the water table and alleviating hydrostatic pressure. This not only helps in maintaining soil stability but also promotes healthier plant growth by preventing root rot and other water-related issues.

The role of drainage pipes is specifically designed to target and control groundwater levels rather than enhancing aeration, supporting structural loads, or facilitating evaporation of fluids. These functions, while important in their own contexts, do not align with the primary purpose of drainage systems, which focuses on the effective management and removal of soil moisture.

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To support structural loading

To facilitate fluid evaporation

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