Borehole Guide Device for Intersecting Drilling Alignment

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Solution Overview

Problem

Existing methods for creating a second borehole that intersects with an existing one result in divergence, leading to a reduced or closed opening between boreholes, which weakens or interrupts the sealing wall when filled with materials like concrete, especially in large-scale projects.

Innovation Solution

An apparatus with a guide device and a direction-influencing system, including a first guide element interacting with the existing borehole and a measuring device connected to an open or closed-loop control system, allows for precise control of the second borehole's direction, using support elements and actuating elements to maintain alignment and prevent divergence.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If guide elements abut against both borehole walls to prevent divergence, then borehole alignment is improved, but device complexity increases

Engineering Contradiction:
Improveborehole alignmentVSAvoidguide device structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The guide device is divided into separate first and second guide elements that can independently interact with different borehole walls. This segmentation allows each element to perform a specific guiding function while simplifying the overall device structure and enabling modular assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The guide elements act as intermediary components between the boring device and the borehole walls. These intermediaries transmit guiding forces without requiring direct complex mechanical linkages, thereby simplifying the overall system while maintaining precise borehole alignment.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the opening between boreholes is reduced to strengthen the sealing wall, then sealing integrity is improved, but borehole alignment control becomes more difficult

Engineering Contradiction:
Improvesealing wall integrityVSAvoidborehole alignment control
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The guide device incorporates feedback mechanisms that continuously monitor the position and orientation of the boring device relative to the first borehole. This feedback enables real-time adjustments to maintain precise alignment control even when the opening between boreholes is reduced, ensuring both sealing integrity and alignment accuracy.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS8662206B2Apparatus and method for making boreholes in the ground, the cross sections of which boreholes partially intersect
Publication Date: 2014.03.04 AKER WIRTH
  • US8662206B2 patent drawing
  • US8662206B2 patent drawing
  • US8662206B2 patent drawing

AI summary

An apparatus for making a second borehole in the ground, a cross section of which second borehole partially intersects a cross section of an existing first borehole, includes a boring device and a guide device operatively connected to the boring device. The guide device includes at least a first guide element configured to interact with a wall of the existing first borehole and a direction-influencing device configured to influence a direction of the second borehole while the second borehole is being made. The guide device is configured to guide the boring device relative to the existing first borehole.