Borehole Anchoring Sleeve with Detachable Coupling for Deep Installation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing anchoring systems for deep boreholes are labor-intensive and costly, with a high risk of damage to anchoring elements during installation due to overstressing, and high production costs.
Innovation Solution
An anchoring element that can be detachably coupled with a tension/compression element, allowing for reduced installation effort and cost, featuring a sleeve-shaped base body with a cutting thread and a torque transmission section for efficient screwing, and a coupling section for easy attachment to a tension/compression element, which can be introduced before or after anchoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If anchoring elements are screwed into deep boreholes using conventional self-tapping methods, then anchoring is achieved, but the effort and time required are enormous and production costs are high
Solution Approach 1:
The anchoring system is divided into separate components: a reusable anchoring element with cutting thread that remains in the borehole, and a tension/compression element that can be installed separately. This segmentation allows the anchoring element to be prepared in advance and reused, significantly reducing installation time and effort for deep boreholes.
Solution Approach 2:
The anchoring element with cutting thread is prepared and positioned in the borehole before the tension/compression element is installed. This preliminary action eliminates the need to screw the anchoring element into the borehole during installation, dramatically reducing installation time and effort.
2Reliability
If conventional anchoring elements are screwed into deep boreholes, then anchoring is achieved, but the risk of damage or failure due to overstressing is high
Solution Approach 1:
By separating the anchoring element from the tension/compression element, the system eliminates the high torsional stresses that occur when screwing a single integrated element into a deep borehole. The anchoring element can be installed with controlled, lower stresses, reducing the risk of damage or failure.
Solution Approach 2:
The coupling section acts as an intermediary between the anchoring element and the tension/compression element, allowing force transmission without direct mechanical coupling during installation. This reduces stress concentration and the risk of overstressing damage to the anchoring element.
3Reliability
If anchoring elements are designed for deep drilling, then anchoring capability is improved, but manufacturing costs are high
Solution Approach 1:
The system separates the expensive, specialized anchoring element with cutting thread from the standard tension/compression element. This allows the costly anchoring component to be manufactured once and reused multiple times, amortizing the high manufacturing cost over many installations, while the tension/compression elements can be standard, lower-cost components.
Solution Approach 2:
The anchoring element with cutting thread is designed as a universal component that can be used with multiple different tension/compression elements through the standardized coupling section. This multi-functionality increases the value-to-cost ratio by allowing a single expensive component to serve multiple purposes and installations.
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 solution reduces the effort and cost of anchoring in deep boreholes by allowing for efficient coupling and torque transmission, enabling secure anchoring with reduced risk of damage and lower production costs.
Implementation Method 1
A cutting thread (7) is arranged on the sleeve base body (12) and in particular formed in one piece on the sleeve base body (12). The cutting thread (7) extends on the sleeve body (12) along the longitudinal axis (13) over at least one complete rotation
Implementation Method 2
A torque transmission section (17) is arranged on the sleeve base body (12) and in particular formed in one piece on the sleeve base body (12). The torque transmission section (17) serves to transmit a screwing torque to the sleeve base body (12).
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
An anchoring element for anchoring in a borehole (3) in a material (2) comprises a sleeve base body (12) having a longitudinal axis (13), a cutting thread (7) arranged on the sleeve base body (12) for cutting into an inner wall of the borehole (3), a coupling section (20) arranged on the sleeve base body (12) for detachable coupling with a tension/compression element (8) and a torque transmission section (17) arranged on the sleeve base body (12) for transmitting a screw-in torque to the sleeve base body (12).