Alternating Pile Driving Apparatus for Weight-Balanced Soil Penetration
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Solution Overview
Problem
Existing pile-driving machinery is limited by the need for anchoring to the soil, which is laborious and inefficient, especially when dealing with multiple piles, and often has limited driving capacity due to weight constraints, leading to slow operation and increased downtime.
Innovation Solution
A pile-driving vehicle equipped with two driving apparatuses that operate alternately, allowing for simultaneous driving of multiple piles without the need for anchoring, reducing weight and increasing efficiency by minimizing downtime during operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the machinery is equipped with a single driving device and the weight is used to counterbalance the reaction, then the machinery does not need anchoring, but the maximum driving force is limited to the weight of the machinery and operations take a long time
Solution Approach 1:
The machinery is divided into two separate driving devices instead of one, allowing parallel operation. Each driving device can independently drive a pile, effectively doubling the productivity while maintaining the weight-based counterbalance system that eliminates anchoring requirements.
Solution Approach 2:
Two driving devices are combined into a single machinery platform that shares common support structures, control systems, and power sources. This merging allows the machinery to operate two piles simultaneously without requiring double the anchoring infrastructure, thus improving productivity while maintaining ease of operation.
2Productivity
If the machinery is equipped with multiple driving devices operating simultaneously, then productivity increases, but the weight must be sufficient to counterbalance the sum of reactions from all devices
Solution Approach 1:
The machinery operates two driving devices in an alternating sequence rather than truly simultaneously. While one device is driving a pile, the other is prepared or moving to the next position. This segmentation of the operational timeline allows high productivity without requiring the machinery weight to counterbalance the full sum of both reactions at once.
Solution Approach 2:
The two driving devices operate in periodic alternation, with each device taking turns in the active driving phase. This periodic action pattern allows the machinery to maintain high productivity by continuously having one device working while the other prepares, without requiring the static weight capacity to support both maximum reactions simultaneously.
3Force
If anchoring is used to counterbalance the reaction, then the driving force is not limited by machinery weight, but the anchoring operation is inconvenient and laborious
Solution Approach 1:
The machinery uses its own weight as the counterbalance mechanism, eliminating the need for external anchoring systems. This self-service approach to counterbalancing the reaction force simplifies the operation significantly, as the machinery can be deployed and operated without laborious anchoring procedures, while still providing sufficient driving force for pile installation.
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 vehicle enables faster and more efficient pile driving by allowing two piles to be driven in the time it would take to drive one pile with traditional machinery, reducing operational time and weight requirements while maintaining stability and maneuverability.
Implementation Method 1
the weight of the vehicle is such that it counterbalances the reaction
Data Source
Figure 1~3
Figure 4~5
Figure 6~7B
AI summary
This disclosure relates to a pile-driving vehicle (1), comprising a chassis (11), a movement system (15) for moving the vehicle (1) on a soil, a first driving apparatus (21) and a second driving apparatus (22). Each driving apparatus (21, 22), which is intended to drive a respective pile into the soil, comprises a first member (31) that is constrained to the chassis (11), a second member (32) that is movable relative to the first member (31) along a driving line (200) and an actuating device (33) for moving the second member (32) relative to the first member (31). The movement of the second member (32) comprising an outward stroke, during which the actuating device (33) pushes the second member (32) towards the soil, applying a force on the second member (32) along the driving line (200), and a return stroke, during which the second member (32) is moved away from the soil. The second member (32) is designed to transmit the force to the pile to be driven in. The first driving apparatus (21) and the second driving apparatus (22) can be operated alternately, in such a way that the outward stroke of the second member (32) of the first driving apparatus (21) corresponds to the return stroke of the second member (32) of the second driving apparatus (22), and vice versa. This disclosure also relates to a method for driving a plurality of piles into a soil.