Precast Dam Flowpath Assembly for Faster Hydroelectric Retrofit
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Solution Overview
Problem
Existing hydroelectric dam construction requires significant disruption of water flow and lengthy installation processes, which can be costly and inefficient, especially when multiple dams are needed along a river.
Innovation Solution
The use of precast dam segments that can be interconnected on-site, including interlocking elements and energy generation components, allowing for assembly while water flow is diverted or continuous, and incorporating auxiliary power sources like solar panels and mini-turbines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional hydroelectric dam construction methods are used (continuous concrete pouring and curing), then structural integrity is achieved, but construction time and cost increase significantly
Solution Approach 1:
The dam structure is divided into multiple precast concrete segments that are manufactured separately and then assembled on-site. This segmentation allows parallel production of multiple segments, eliminating the sequential pouring and curing process while maintaining structural integrity through standardized connection details between segments.
Solution Approach 2:
Concrete segments are precast in controlled manufacturing facilities before being transported to the construction site. This preliminary action allows concrete to reach optimal strength in a controlled environment, enabling faster on-site assembly without compromising structural quality.
2Adaptability or versatility
If existing dam structures are demolished and rebuilt, then modern energy generation capabilities are achieved, but resource consumption and construction time increase
Solution Approach 1:
Instead of demolishing existing dam structures, the patent repurposes them by encasing them in precast segments. This recovers the value of existing structures while upgrading them with modern energy generation components, reducing the need for new materials and minimizing waste.
Solution Approach 2:
The precast segment system provides multi-functionality by serving as both structural elements and housings for energy generation equipment. The same segments that provide structural support also contain turbines, generators, and other components, eliminating the need for separate structures.
3Productivity
If precast segments are used for dam construction, then construction speed and cost-effectiveness improve, but structural complexity increases
Solution Approach 1:
The precast segments incorporate self-aligning and self-locking features that automatically ensure proper positioning and connection during assembly. This self-service capability reduces the need for complex alignment procedures and specialized installation equipment, simplifying the construction process despite the modular complexity.
4Manufacturing precision
If water flow is diverted during construction, then construction safety and quality are improved, but operational disruption and time loss increase
Solution Approach 1:
Precast segments are manufactured with built-in flow control features and connection details that maintain water flow pathways during assembly. This preliminary design allows construction to proceed without diverting water flow, as the segments are designed to work with rather than interrupt the natural flow pattern.
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
This method reduces construction time and cost, enabling a distributed energy generation system that is more economical and efficient, with the ability to reuse existing dams and minimize environmental impact.
Implementation Method 1
Hydroelectric dams provide electrical power through use of converting kinetic energy provided by running water into electrical power through use of rotation-to-electric converters
Data Source
AI summary
A precast dam structure may include at least two precast segments coupled together via linkages and a flow path structure. The flow path structure defines a flow path having an intake port and a draft port and is associated with at least one of the at least two precast segments. The flow path structure is configured to provide a change in flow direction, either internally or externally, from the at least one of the at least two precast segments.