Soil Column Machine with Rotating Body and Drilling Tool
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Solution Overview
Problem
Existing soil improvement techniques for producing rigid structures, particularly low-level structures, are inefficient due to the need for multiple tools and phases, safety concerns, and instability of the work platform, with existing machines not suitable for significant depths and prone to vibration damage.
Innovation Solution
A machine with a carrier, mast, and a soil perforating tool, where the body is secured to the perforation tool for direct rotation and translation, allowing for single-phase production of mixed columns with different materials and diameters, reducing component count and assembly complexity, and minimizing vibration impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a tank is used to produce rigid structures in the ground, then the structure can be formed, but the tank cannot be introduced into all terrains over sufficient height and vibrations weaken the mast
Solution Approach 1:
The device is divided into two functional components: a drilling tool for ground penetration and a body for structure formation. The drilling tool can be introduced to significant depths while the body remains above ground, eliminating the vibration problem that affected the mast in previous designs. The drilling tool rotates within the body, allowing the body to be introduced into the ground through rotation without requiring the entire assembly to be inserted.
Solution Approach 2:
The problematic tank component is replaced by separating the drilling function from the structure formation function. The drilling tool extracts the penetration function, while the body performs the structure formation. This extraction allows the body to be introduced through rotation of the drilling tool rather than by forcing the entire assembly into the ground, solving both the depth limitation and vibration issues.
2Ease of manufacture
If multiple tools and phases are used to produce low-level structures, then the structures can be formed, but completion time increases and safety risks arise
Solution Approach 1:
The drilling tool and body are combined into a single integrated device where the drilling tool is received by the body. This merging allows both drilling and structure formation to occur in a single phase using one device, eliminating the need for multiple tools and sequential operations. The drilling tool simultaneously penetrates the ground and introduces the body into the ground through its rotation, consolidating multiple operations into one continuous process.
Solution Approach 2:
The drilling tool serves multiple functions: it penetrates the ground, introduces the body into the ground through rotation, and can supply construction material through its central core. This multi-functionality eliminates the need for separate tools for each operation, reducing completion time and improving efficiency while maintaining safety by using a single stable platform.
3Productivity
If a single tool is used to produce mixed columns, then productivity increases, but the tool must be suitable for significant depths and various terrains
Solution Approach 1:
The drilling tool is designed to rotate within the body, creating a dynamic introduction mechanism. This rotational movement allows the body to be introduced into various terrains adaptably, as the rotation can accommodate different soil conditions and ground characteristics. The drilling tool's ability to rotate and penetrate while introducing the body provides versatility across different terrains while maintaining single-tool productivity.
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
Enables precise, single-tool, single-phase production of rigid structures at significant depths with reduced safety risks and increased efficiency, suitable for low-level structures and mixed or single-material columns with varying diameters.
Implementation Method 1
the rotation of the piercing tool causes the rotation of the body and the translation of the piercing tool causes the translation of the body
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The invention relates to a machine (10) for creating columns in soil, of the type comprising a carrier (12) equipped with a mast (14) extending in a longitudinal direction; a movable carriage (16) mounted to slide along the mast (14); a soil drilling tool (20), extending along a longitudinal axis parallel to said longitudinal direction and integral with said movable carriage, having an upper end connected to means for supplying a construction material, and a lower end provided with an orifice (28) for injecting the first construction material; a rotational drive system (18) for the drilling tool (20); and a body (40) extending around the drilling tool (20) such that the drilling tool is able to slide through said body. According to the invention, the machine includes a system for securing the body (40) to the drilling tool (20) in translation and rotation.