Concrete Pile Formwork with Drainage Holes for Compression Molding
Solution Overview
Problem
Conventional methods for manufacturing concrete piles face challenges in achieving accurate dimensions due to deformation under pressure, and insufficient water drainage, which affects the desired moisture percentage and strength of the concrete pile.
Innovation Solution
The method involves using a formwork with drainage holes connected to the outside, allowing for the reduction and enlargement of the pile molding space, enabling efficient water drainage and accurate molding of the concrete pile. The concrete is poured, compressed, and molded within this formwork, with the water drained through the holes, and the concrete is allowed to harden before being removed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If permeable material such as hard urethane is positioned in the formwork to drain water from concrete, then water drainage is enabled, but the molded surface shape is deformed by compression pressure
Solution Approach 1:
The drainage function is extracted from the formwork surface and implemented through a drainage hole connected to a drainage path leading outside the formwork. This allows water to be drained without requiring permeable material on the molded surface, thereby preventing surface deformation while maintaining effective water removal from the concrete during compression molding
Solution Approach 2:
A drainage path acts as an intermediary element, providing a dedicated channel for water to escape from the concrete through the drainage hole. This mediator allows water drainage functionality to be achieved without compromising the integrity or shape of the molded surface
2Strength
If pressure is increased to increase concrete pile strength, then strength is improved, but the molded surface deformation increases
Solution Approach 1:
The harmful effect of compression pressure causing surface deformation is extracted and separated from the useful effect of pressure increasing concrete strength. By providing a drainage path that allows water to escape during compression, the patent enables higher pressure to be applied for strength enhancement without the detrimental surface deformation that would otherwise occur
Solution Approach 2:
The compression pressure that would normally cause harmful surface deformation is converted into a beneficial force for increasing concrete strength. The drainage hole system transforms the potentially harmful water retention under pressure into a beneficial process where water is actively removed, allowing high pressure to be applied safely for strength enhancement
3Quantity of substance
If permeable material is used to hold drained water, then water storage is achieved, but drainage efficiency is insufficient
Solution Approach 1:
The drainage function is extracted from the permeable material approach and implemented through a dedicated drainage hole and drainage path system. This allows water to be actively channeled outside the formwork rather than passively held by permeable material, dramatically improving drainage efficiency while maintaining adequate water removal capacity
Solution Approach 2:
The drainage hole system provides self-service drainage by allowing water to naturally flow out through the drainage path under the influence of compression pressure and gravity. No additional active pumping or complex water management systems are required, achieving high drainage efficiency through a simple, self-operating mechanism
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 approach allows for the manufacturing of concrete piles with low costs, low noise, high accuracy, and large strength, without the need for large machinery, and ensures efficient water drainage and desired moisture content.
Implementation Method 1
reducing the pile molding space to compress and mold the concrete
Data Source
AI summary
A manufacturing method of a concrete pile is shown. The method includes the following, that is, pouring concrete in the pile molding space, reducing the pile molding space to compress and mold the concrete, draining water drained from the concrete by compression and molding outside of the formwork from the drainage hole, and holding the concrete a predetermined amount of time to harden the concrete. The formwork includes an outer formwork that molds an outer wall surface of the concrete pile, an inner formwork that molds an inner wall surface of a hollow space of the concrete pile, and a pair of end formwork that mold upper and lower end surfaces of the concrete pile. The drainage hole is a gap between adjacent components when the mold is tightened, and the gap is configured to be capable of being opened larger during cleaning than when the mold is tightened.