Plasma Blasting Probe for In-Situ Concrete Pile Shaping
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Solution Overview
Problem
Deep foundation construction using traditional methods is costly and inefficient, especially when dealing with deep bedrock, as it requires precise depth and distribution of load-bearing soil layers, which can be challenging and expensive in areas with dense or hard strata.
Innovation Solution
A method utilizing plasma blasting to create boreholes and expand wet concrete into surrounding soil, allowing for customized shaping of piling and anchor structures by controlling the plasma explosion's energy and duration through a microprocessor-adjusted probe, enabling efficient distribution of load and interconnection of boreholes for enhanced structural support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional drilling and boring methods are used to create deep boreholes through dense or hard strata, then the boreholes can be created with controlled depth and diameter, but the construction cost increases significantly and construction time is extended
Solution Approach 1:
The patent replaces traditional mechanical drilling and boring systems with a plasma blasting system. The plasma blasting probe generates high-energy plasma explosions that fracture and remove dense or hard strata much faster than mechanical methods, while the microprocessor-controlled electrode gap maintains precision in borehole creation. This substitution resolves the contradiction by achieving both speed and control.
Solution Approach 2:
The patent changes the fundamental parameter of energy delivery from mechanical force to plasma energy. By controlling the electrode gap distance and plasma energy output, the system can adapt to different soil conditions and achieve precise borehole formation without the slow, costly mechanical drilling process. This parameter change enables both high productivity and manufacturing precision.
2Productivity
If plasma blasting is used to create boreholes and expand concrete, then construction efficiency and load distribution improve, but the complexity of the equipment and process control increases
Solution Approach 1:
The plasma blasting probe serves multiple functions: it creates the borehole through plasma explosions, compacts the surrounding soil, and enables concrete expansion. The microprocessor-controlled system provides automated regulation of the electrode gap and energy delivery. This multi-functionality justifies the equipment complexity by eliminating the need for separate drilling, compaction, and concrete placement operations.
Solution Approach 2:
The system uses controllable plasma energy parameters (electrode gap distance, energy duration, power level) to achieve different construction objectives with a single device. By adjusting these parameters, the same plasma blasting probe can create boreholes, compact soil, and facilitate concrete expansion, reducing the need for multiple specialized equipment and simplifying overall construction complexity.
3Strength
If boreholes are drilled to great depths to reach load-bearing layers, then the foundation can support heavier structures, but the construction cost and time increase substantially
Solution Approach 1:
The patent replaces slow mechanical drilling with rapid plasma blasting to achieve the same depth. The plasma explosions fracture and remove material much faster than mechanical drill bits, especially in dense or hard strata. This substitution maintains the ability to reach deep load-bearing layers while dramatically reducing construction time and associated costs.
Solution Approach 2:
The plasma blasting process performs preliminary soil fracturing and removal before concrete placement, creating an optimized borehole shape and compacting the surrounding soil in advance. This preliminary action prepares the foundation to support heavier structures more quickly than traditional sequential drilling and concrete placement methods.
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 costs and improves efficiency by allowing for precise shaping and expansion of concrete into soil, distributing load effectively across a broader area, thus supporting heavier structures with reduced material and operational expenses.
Implementation Method 1
The plasma blasting probe then creates a plasma explosion in the borehole, expanding the wet concrete into the surrounding soil
Data Source
AI summary
A method, system and apparatus for plasma blasting comprises a borehole in soil, a blast probe comprising a high voltage electrode and a ground electrode separated by a dielectric separator, wherein the high voltage electrode and the dielectric separator constitute an adjustable probe tip, and an adjustment unit coupled to the adjustable probe tip, wherein the adjustment unit is configured to selectively extend or retract the adjustable probe tip relative to the ground electrode and a blasting media, wherein at least a portion of the high voltage electrode and the ground electrode are submerged in the blast media. The blasting media comprises wet concrete. The adjustable tip permits fine-tuning of the blast. The blast is used to force the wet concrete into a customized shape within the borehole.