Leveling System
Active Leveling Jacks and Alignment System
The active leveling jacks and alignment system is an adjustable foundation assembly designed to compensate for terrain irregularity and foundation settlement. Utilizing stainless steel screw jack legs with MoS2 lubricated threads, the system provides fine adjustment of structural position and attitude, while integrated inclinometer sensors detect tilt. Locking mechanisms secure the assembly after adjustment to prevent drift under load. In the lunar environment, the mechanism must operate reliably within a dusty vacuum, providing active releveling capability to correct for moonquake-induced displacements as well as long-term differential settlement across a 100-year service life.
Adjustable leveling system compensating for foundation settlement and terrain irregularity
Purpose
Adjustable leveling system compensating for foundation settlement and terrain irregularity
Context
Child of L2-STR-FOUND
Principles
- ▸Screw jack leveling legs provide fine adjustment of Ark position and attitude
- ▸Level sensors (inclinometers) detect tilt from settlement or moonquake displacement
- ▸Active releveling capability compensates for differential settlement over decades
- ▸Locking mechanisms fix position after leveling to prevent drift under load
Typical implementations
- ▸Apollo ALSEP instrument leveling mechanisms
- ▸Industrial heavy equipment leveling jacks
- ▸Telescope pier leveling and alignment systems
Lunar considerations
- ▸Differential settlement over 100 years requires periodic releveling capability
- ▸Moonquake-induced displacement may require post-event releveling
- ▸Leveling mechanism must function in dusty vacuum environment
Specifications
Functional
| primary function | Adjustable leveling system compensating for foundation settlement and terrain irregularity |
Physical
| materials | Stainless steel screw jacks, Inclinometer sensors, MoS2 lubricated threads |
Interfaces
Provides
- Level structural support despite terrain irregularity
Requires
- Settlement monitoring data triggering releveling
Cite this entry
Lunar Ark Codex. "Leveling System" (L3-STR-FOUND-LEV). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-STR-FOUND-LEV
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.