Core Retention Drilling Assembly to Prevent Falling Concrete Cores
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Solution Overview
Problem
Conventional coring techniques pose a danger by allowing cores to fall into vulnerable areas such as roadways carrying traffic due to the inability to retain the extracted core during removal.
Innovation Solution
A method and system involving a drilling assembly with a first elongated member attached to the structure, a second elongated member received by the first member, and a collar member that compresses the first member to retain it within the assembly, preventing the core from falling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional coring techniques are used to remove a core from a structure, then the core can be extracted for testing or utility purposes, but the core may fall into vulnerable areas such as roadways carrying traffic, creating a safety hazard
Solution Approach 1:
An elongated retention member is introduced as an intermediary element between the core and the external environment. This retention member is attached to the core during drilling and continues to hold it after extraction, preventing the core from falling into vulnerable areas below. The retention member acts as a mediator that enables safe core removal without creating hazards.
Solution Approach 2:
The retention member is attached to the core before the core is fully extracted from the structure. This preliminary attachment ensures that when the core is removed, it is already secured and cannot fall freely. The action of securing the core is performed in advance of the potential hazard occurring.
2Reliability
If a retention member is attached to the core during drilling, then the core can be retained after removal, but the drilling assembly becomes more complex with multiple components including nested elongated members and collar members
Solution Approach 1:
The drilling assembly employs a nested structure where an inner elongated member is received within an outer elongated member. The collar member is disposed on the inner elongated member and can be received in a cavity of the outer elongated member. This nesting arrangement allows multiple functional components to be integrated in a compact configuration, reducing overall complexity while maintaining core retention capability.
Solution Approach 2:
The elongated members serve multiple functions: they guide the drilling operation, provide structural support during core extraction, and retain the core after removal. The collar member similarly serves both as a structural component and as a retention mechanism. This multi-functionality reduces the need for separate dedicated components, simplifying the overall assembly.
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 system effectively retains the core during and after removal, preventing it from falling into sensitive areas and ensuring safe extraction.
Implementation Method 1
a collar member that is disposed on the second elongated member and that is configured to be received in the third cavity
Data Source
AI summary
A method for removing a portion of a structure is disclosed. The method includes attaching a first elongated member to the portion of the structure, receiving a second elongated member of a drilling assembly with the first elongated member, drilling into the structure with the drilling assembly while receiving the second elongated member with the first elongated member, and removing the portion of the structure that is attached to the first elongated member while urging the first elongated member with the second elongated member.