Side Drain Device for Basement Footing Water Management
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Solution Overview
Problem
Existing water drainage systems in basements and subterranean areas face challenges such as blockages, high maintenance requirements, and inability to address radon gas seepage, especially in older homes where installation is disruptive and costly, and they struggle with handling quickly rising water tables during heavy rains or snowmelt, leading to hydrostatic pressure and damage.
Innovation Solution
A side drain device is installed beneath the floor slab along the interior sidewall of the foundation footing, comprising a vertical first wall section, a perforated second wall section, and a third wall section forming a drainage channel, which communicates with a top-of-the-footing channel drain device to channel excess water to a sump pump, relieving hydrostatic pressures and preventing seepage, and is fabricated from durable, water-impermeable materials like PVC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If trenches are formed in the slab to provide drainage channels, then water drainage is improved, but the system becomes subject to blockages from dirt and debris requiring frequent monitoring and maintenance
Solution Approach 1:
The invention extracts the drainage function from the slab structure by installing a separate drainage system along the footing. The drainage channel is positioned in the footing rather than cutting into the slab, thereby maintaining the slab's integrity while providing effective drainage through the footing's existing structure.
Solution Approach 2:
The invention introduces an intermediary drainage channel positioned between the footing and the slab. This intermediate structure collects water from the footing and channels it away from the slab, preventing direct contact between water and the slab while maintaining drainage functionality.
2Object-affected harmful factors
If trenches are formed to drain water, then water seepage is reduced, but radon gas seepage through the trenches increases
Solution Approach 1:
The invention segments the drainage function from the radon ventilation function by providing separate systems: a drainage channel for water removal and a separate radon mitigation system. This segmentation allows each system to address its specific function without compromising the other.
Solution Approach 2:
The invention uses the footing as an intermediary structure that accommodates both drainage and radon mitigation functions. The drainage channel is positioned within the footing, allowing radon gas to be captured and vented through the footing structure without creating open trenches that would facilitate radon entry.
3Productivity
If top-of-the-footing drainage device is installed, then water drainage is improved, but installation is disruptive and costly in older homes
Solution Approach 1:
The invention segments the drainage system into modular components that can be installed independently along the footing. This modular approach allows for gradual installation in older homes without requiring complete demolition or major structural modifications, thereby reducing installation disruption and cost.
Solution Approach 2:
The invention utilizes the existing footing structure as a preliminary base for installation. By positioning the drainage channel within the existing footing rather than requiring new construction, the system leverages already-installed structural elements to reduce installation complexity and cost in older homes.
4Productivity
If traditional drainage systems are used, then water drainage is provided, but they struggle with handling quickly rising water tables during heavy rains or snowmelt
Solution Approach 1:
The invention transitions from horizontal drainage through slab trenches to vertical drainage along the footing. By positioning the drainage channel vertically along the footing and extending it downward, the system creates a new dimensional path for water removal that effectively handles rising water tables by draining water at multiple elevation levels.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The side drain device effectively manages excess water and hydrostatic pressures, reducing the likelihood of flooding and damage, while minimizing the risk of radon gas entry and requiring less maintenance compared to traditional systems.
Implementation Method 1
a perforated second wall section
Implementation Method 2
the trenches and channels can help mitigate water damage in the basement, trenches 19 are subject to blockages from dirt and debris
Data Source
AI summary
A side drain device for channeling excess water beneath a basement slab proximate an interior sidewall of a footing. The device includes a vertical first wall section, a perforated second wall section, and a third wall section attached between lower portions of the first and second wall sections to form a drainage channel. The first wall section is configured for placement adjacent to the interior sidewall of the footing. A fourth wall section extends horizontally from an upper portion of the first wall section for placement on a top surface of the footing. A fifth wall section is coupled to an upper portion of the second wall section and above the fourth wall section to form a gap therebetween. The fourth and fifth wall sections are configured for communication with a channel drain device which is selectively positioned on the top surface and adjacent to a wall of the basement.