Underground working - Revision history

Apm: /* Related / added Automated decibot swarm mining and tunneling

2026-02-22T07:57:52Z

← Older revision		Revision as of 09:57, 22 February 2026
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	* [[geoengineering]] - (controlled tectonic tension release cables?)		* [[geoengineering]] - (controlled tectonic tension release cables?)
	* [[mining]]		* [[mining]]
			* [[Automated decibot swarm mining and tunneling]]

Apm: removed the {{stub}} note on the article

2021-01-13T15:33:00Z

removed the {{stub}} note on the article

← Older revision		Revision as of 17:33, 13 January 2021
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	~~{{Stub}}~~

	This page is about future advanced atomically precise diamondoid underground working systems.		This page is about future advanced atomically precise diamondoid underground working systems.

Apm: /* Eventual limit to geothermal energy? */

2021-01-13T15:31:46Z

Eventual limit to geothermal energy?

← Older revision		Revision as of 17:31, 13 January 2021
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	To note is that some part of the heating when going down is not free energy but bound energy.		To note is that some part of the heating when going down is not free energy but bound energy.
	That is: Part of the thermal difference is not convertible into usable mechanical energy because it goes across a gravitational		That is: Part of the thermal difference is not convertible into usable mechanical energy because it goes across a gravitational
	potential.{{~~wiki-todo~~\|Check how much of the thermal gradient is actually usable -- minute or major?}}		potential.<br>{{wikitodo\|Check how much of the thermal gradient is actually usable -- minute or major?}}

	As an analogy for understanding: All gas molecules in a very thin gas on a planetary body (like e.g. our moon) follow a parabola (well a part of an ellipse to be precise). So at the top their vertical speed drops to zero and their energy (and thus temperature) drops accordingly. In a thicker atmosphere (like on Mars, Earth, Titan and Venus) there are plenty of collisions but the basic argument still holds.		As an analogy for understanding: All gas molecules in a very thin gas on a planetary body (like e.g. our moon) follow a parabola (well a part of an ellipse to be precise). So at the top their vertical speed drops to zero and their energy (and thus temperature) drops accordingly. In a thicker atmosphere (like on Mars, Earth, Titan and Venus) there are plenty of collisions but the basic argument still holds.

Apm: /* Ultra-deep underground working - far term */ notes on ultra-deep geothermal energy

2021-01-13T15:31:21Z

Ultra-deep underground working - far term: notes on ultra-deep geothermal energy

@@ Line 88: / Line 88: @@
 A high amount of energy is only required for lifting stuff up from very great depths.
-a few hundred kilometers down the necessary energies are like the energies involved in spaceflight to LEO (low earth orbit). One don't has to propell the propellant and one can go slowly though.
+a few hundred kilometers down the necessary energies are like the energies involved in spaceflight to LEO (low earth orbit).
 ['''Todo:''' analyze what could be done if very hard rock like corundum (Al<sub>2</sub>O<sub>3</sub>) is encountered - Na<sup>+</sup>-ion beams? and slushing with water? see: [[diamondoid waste incineration]] ]

Apm: /* Preserving geological history stored in the lithosphere */

2021-01-13T14:53:28Z

Preserving geological history stored in the lithosphere

← Older revision		Revision as of 16:53, 13 January 2021
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	Although the Lithosphere does not grow back in reasonable amounts of time like plants do today (2016) the lithosphere is one of the least protected things.		Although the Lithosphere does not grow back in reasonable amounts of time like plants do today (2016) the lithosphere is one of the least protected things.
	Our current technology is just not powerful enough to endanger it. With advanced atomically precise technology this might drastically change.		Our current technology is just not powerful enough to seriously endanger it. With advanced atomically precise technology this might drastically change.
	Doing future massive underground work as nondestructive as possible might become a very important aspect of the design of underground working systems.		Doing future massive underground work as nondestructive as possible might become a very important aspect of the design of underground working systems.
	Underground work with minimized destructiveness basically amounts to cutting out blocks as big as possible and cutting them out with as thin as thin as possible cuts plus permanently tagging the cut out blocks and documenting where they came from allowing for later conduction of geological and planetary science.		Underground work with minimized destructiveness basically amounts to cutting out blocks as big as possible and cutting them out with as thin as thin as possible cuts plus permanently tagging the cut out blocks and documenting where they came from allowing for later conduction of geological and planetary science.

Apm: /* Transport of sealed soil blocks */ spelling blases -> blades

2021-01-13T14:52:50Z

Transport of sealed soil blocks: spelling blases -> blades

← Older revision		Revision as of 16:52, 13 January 2021
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	In case of cutting out cuboid shaped pieces:		In case of cutting out cuboid shaped pieces:
	How would one go about cutting off the back-face.		How would one go about cutting off the back-face.
	Cutting and dissolving nanomachinery with ~~blases~~ and or acceleration mechanisms may well fit in the		Cutting and dissolving nanomachinery with blades and or acceleration mechanisms may well fit in the
	micrometer sized cutting layer. But going around a sharp 90° turn is another story ...		micrometer sized cutting layer. But going around a sharp 90° turn is another story ...

Apm: /* Transport of sealed soil blocks */ added question about back-face off-cutting

2021-01-13T14:52:25Z

Transport of sealed soil blocks: added question about back-face off-cutting

← Older revision		Revision as of 16:52, 13 January 2021
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	The problem: full stops of motion at those turns due to the high inertial mass of the huge blocks and potential deformation of the blocks due to very thin hull and potentially unstable interior material.		The problem: full stops of motion at those turns due to the high inertial mass of the huge blocks and potential deformation of the blocks due to very thin hull and potentially unstable interior material.
	This can be limited to the initial straight move just after the cutting process when the cubes are made smaller than (e.g. one third the size of) the transport channel.		This can be limited to the initial straight move just after the cutting process when the cubes are made smaller than (e.g. one third the size of) the transport channel.

			'''One of many untreated question here:'''<br>
			In case of cutting out cuboid shaped pieces:
			How would one go about cutting off the back-face.
			Cutting and dissolving nanomachinery with blases and or acceleration mechanisms may well fit in the
			micrometer sized cutting layer. But going around a sharp 90° turn is another story ...

	== Preserving geological history stored in the lithosphere ==		== Preserving geological history stored in the lithosphere ==

Apm: /* Dissolving and washout */ added sub-headlines & added notes on ion beams

2021-01-13T14:44:49Z

Dissolving and washout: added sub-headlines & added notes on ion beams

← Older revision		Revision as of 16:44, 13 January 2021
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	This is orders of magnitude more energy efficient and can preserve the structure of		This is orders of magnitude more energy efficient and can preserve the structure of
	the excavated bedrock for eventual later analysis.		the excavated bedrock for eventual later analysis.

			=== Issues with dissolvability of rock ===

	Quite common calcite CaCO<sub>3</sub> rock is easily dissolvable with many acids.<br>		Quite common calcite CaCO<sub>3</sub> rock is easily dissolvable with many acids.<br>
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	When looking at these minerals as a salts:<br>		When looking at these minerals as a salts:<br>
	Orthoisilicic acid and Orthoaluminic acid (aka aluminium hydroxide) are with a very few exceptions highly water-insoluble.		Orthoisilicic acid and Orthoaluminic acid (aka aluminium hydroxide) are with a very few exceptions highly water-insoluble.

			=== Sodium ion beams and hot water high-speed droplet jets ===

	One way to solve this issue may be to shoot the cutting lines with an ion beam out of sodium ions.		One way to solve this issue may be to shoot the cutting lines with an ion beam out of sodium ions.
	Because pretty much all salts of sodium are water soluble.		Because pretty much all salts of sodium are water soluble.
	Basically one converts the rock into a sufficiently ionic salt.		Basically one converts the rock into a sufficiently ionic salt.
	One then can progress a "cut" with thin hot high pressure water-jets.		One then can progress a "cut" with thin hot high pressure water-jets.
	In case water is squeezed as a liquid through a nozzle then the thinness of water jets is limited by water viscosity.		In case water is squeezed as a liquid through a nozzle then the thinness of water jets is limited by water viscosity.
	This does not apply to levitated nano-droplets.		This does not apply to levitated nano-droplets.

			Heavy duty sodium ion beams could eventually be accelerated via standing wave optical accelerators.<br>
			''Note: highly speculative -- this needs deeper looking into.''
			Deeper ion penetrations depths with higher ion energies make a less sharp due to scattering.
			Also there's more energy dissipated over this bigger volume.

	One of course could also try to use extreme acids that are known to dissolve quartz like e.g. hydrofluoric acid.		One of course could also try to use extreme acids that are known to dissolve quartz like e.g. hydrofluoric acid.

Apm: put too long title of first section into the Acrticles intro

2021-01-13T14:32:54Z

put too long title of first section into the Acrticles intro

← Older revision		Revision as of 16:32, 13 January 2021
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	{{Stub}}		{{Stub}}

			This page is about future advanced atomically precise diamondoid underground working systems.
			What eventually will be possible one advanced gemstone metamaterial APM is around.

	Today (as of last visit 2021) any kind of underground work (especially in hard rock) is very time consuming and energy extensive.		Today (as of last visit 2021) any kind of underground work (especially in hard rock) is very time consuming and energy extensive.
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	Digging and cutting speeds that are form todays perspective astonishing should be possible.		Digging and cutting speeds that are form todays perspective astonishing should be possible.

	== Basic characteristics ~~of advanced atomically precise diamondoid underground working systems~~ ==		== Basic characteristics ==

	With APM technology one could make cutting saw-blades that:		With APM technology one could make cutting saw-blades that:

Apm: /* Dissolving and washout instead of or in conjunction with mechanical cutting */ put part of this too long title in the text

2021-01-13T14:30:40Z

Dissolving and washout instead of or in conjunction with mechanical cutting: put part of this too long title in the text

← Older revision		Revision as of 16:30, 13 January 2021
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	With atomically precise diamondoid '''saw blade systems''' (many small scale blades) big sized chunks of soil (e.g. liter to cubic meter) could be cut out both carefully preserving their interior structure and fast because less material and thus less chemical bonds are broken. The then following transport to the surface can be made very energy efficient with [[infinitesimal bearing\|infinitesimal bearing]] rails that are included in the wall sealing and support structure.		With atomically precise diamondoid '''saw blade systems''' (many small scale blades) big sized chunks of soil (e.g. liter to cubic meter) could be cut out both carefully preserving their interior structure and fast because less material and thus less chemical bonds are broken. The then following transport to the surface can be made very energy efficient with [[infinitesimal bearing\|infinitesimal bearing]] rails that are included in the wall sealing and support structure.

	== Dissolving and washout instead of or in conjunction with mechanical cutting ==		== Dissolving and washout ==

			This could be done instead of or in conjunction with mechanical cutting.

	If the Underground work at hand is about excavation rather than resource utilization then one		If the Underground work at hand is about excavation rather than resource utilization then one