Underground Shaft Drilling for Deep Boreholes in Sensitive Areas
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Solution Overview
Problem
Deep drilling in emission-sensitive areas, such as urban locations or protected nature reserves, is challenging due to environmental disruptions, safety concerns, and the need for large construction sites, which are often not feasible.
Innovation Solution
A method and device that involve creating a shaft structure to house the drilling rig, with the rig anchored to the shaft wall, allowing for reduced safety distances, minimized noise and dirt emissions, and efficient containment of drilling fluids, enabling drilling in a controlled environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional drilling rig is set up on the surface, then drilling operations can be performed, but it generates significant noise, dirt, and emissions that disrupt the environment
Solution Approach 1:
The drilling rig is extracted from the surface environment and relocated into an underground shaft structure. This separates the noise-generating drilling operations from the surface environment, eliminating noise, dirt, and emissions from sensitive areas while maintaining full drilling productivity underground
Solution Approach 2:
The drilling operation is moved from the surface (2D horizontal plane) to an underground vertical dimension. By sinking a shaft and installing the rig underground, the system transitions to a three-dimensional solution that removes the harmful effects from the surface plane while maintaining operational capability in the vertical subsurface space
2Reliability
If a large surface construction site is provided for the drilling rig, then safety and operational requirements are met, but it requires large distances from surrounding settlements and buildings
Solution Approach 1:
The drilling rig and all construction site facilities are relocated from the surface horizontal plane to an underground vertical shaft. This dimensional transition concentrates the entire operation into a compact vertical space, reducing the surface footprint to minimal access points while maintaining all safety distances from surrounding buildings
Solution Approach 2:
The drilling rig, auxiliary units, and all construction facilities are nested within the underground shaft structure. This nesting consolidates what would otherwise require extensive surface dispersal into a compact underground package, eliminating the need for large surface construction sites
3Reliability
If the drilling rig is anchored to the shaft wall, then the rig is prevented from tipping over and safety is improved, but the structural complexity of the shaft structure increases
Solution Approach 1:
The anchoring system merges the rig support function with the shaft wall structure itself. The shaft wall serves dual purposes: containing the underground operation and providing anchoring points to prevent rig tipping, thereby improving safety without requiring separate complex support structures
Data Source
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AI summary
The invention relates to a method for creating a deep borehole, particularly in an emission-sensitive region, and a device therefor. The invention is based on the object of providing a drilling method and a drilling device, by means of which deep boreholes can be created even in regions that are emission-sensitive, such as in inner-city building development, or in protected nature regions, while simultaneously reducing significant damage to said regions when creating deep boreholes. Said object is achieved in that a shaft structure (20) is created, a stationary drilling system (10) is installed into the shaft structure (20), the base (23) of the shaft structure is prepared as a drilling starting point, and the deep borehole is sunk using a suitable drilling method.