Earthquake defense vibrotechnology

Abstract

The Earthquake Defense Vibrotechnology for a definite local area comprises an underground structure of vibroset-kits placed in casing-well units. Vibrosets generate mechanical operating response-vibrations and effectively transmit them to elastic layers of ground for instant seismic waves damping by closed vibro-cage, formed by vibro-frequentative shields, closed-loop walls, and closed guards, which are shaped under protected area. Vibrosets are automatically and directly controlled by vibrosensors for operation within 1.5-2 seconds after seismic waves of definite magnitude start and stop when earthquake ends. The frequentative interactions with forced superposition of generated response-vibrations and seismic waves provide their destructive interference, and thus effective damping. The amplitudes of seismic waves become about 5 times reduced, and calmed down to safe levels until dangerous shocks end.

1 . An Earthquake Defense Vibrotechnology for a local area comprising:
 a) An underground structure of vibroset-kits, placed in casing-well units, for generating and systemic transmitting mechanical operating vibrations of definite adjusted frequencies in order to dampen seismic waves down into safe magnitudes, and   b) A sensor control system to provide instant start and well-timed stop of dampening vibrations.   
   
   
       2 . The vibrotechnology of  claim 1  wherein any of said vibroset-kits includes:
 Level-vibrosets producing operating, frequentative dampening upper and lower v-belts;   Rim-vibrosets producing operating, frequentative dampening upper and lower v-fences;   Vertical arrangement of both said kinds of vibrosets into a common casing-well unit.   
   
   
       3 . Said v-belts and v-fences of  claim 2  form operating, continuous, and dampening:
 Upper and lower v-shields consisting of v-belts,   Upper and lower closed-loop v-walls consisting of v-fences,   Upper and lower closed v-guards consisting of v-fences.   
   
   
       4 . Said v-shields, v-walls, and v-guards of  claim 3  shape a closed combined v-cage underground protected local area. 
   
   
       5 . Said v-shields, v-walls, and v-guards of  claim 3  are dampening vibro-fields with generated frequencies at least 5 times higher than seismic waves frequencies in order to provide effective and substantial reducing of earthquake amplitudes by forced destructive vibro-wave superposition. 
   
   
       6 . Any of said level-vibroset and rim-vibroset of  claim 2  includes:
 Vibration machine with vibro-drive adjuster and vibro-frame;   Stop-slab device with back stop-adjuster;   Suspension-gasket unit.   
   
   
       7 . Said vibration machines of  claim 6  are depending on local conditions and design arrangements, and can be:
 Reaction type with rotating unbalanced masses   Direct-drive vibro-units,   Electrodynamic assemblies, and/or combined.   
   
   
       8 . The vibrotechnology of  claim 1  wherein any of said casing-well units comprises:
 a) Vertical concrete dry well with directing windows for vibrosets,   b) Multisegment inner casing-assembly,   c) Maintenance unit.   
   
   
       9 . Said casing-assembly of  claim 8  includes:
 V-segments with holes for vibrosets,   Insert-segments with flexible connectors to adjacent segments,   Maintenance elements.   
   
   
       10 . Said windows of  claim 8  and holes of  claim 9  are placed on levels of elastic layers of protected area underground. 
   
   
       11 . The vibrotechnology of  claim 1  wherein said sensor control system includes: a) vibration sensors for every said vibroset,
 b) a reserve sensor-unit for every said vibroset and every said vibroset-kit.   
   
   
       12 . The Earthquake Defense Vibrotechnology for a local area includes regulating and/or adjusting units and devices in order to provide:
 a) Immediate start of operation within 2 seconds maximum, after definite magnitude earthquake begins,   b) Back-stop forces of stop-slab devices for effective vibrations transmission to elastic layers of underground depending on local conditions,   c) Frequency ratio about 5.0 between generated operating vibrations and real seismic waves for effective dampening to safe levels;   d) Independent and flexible vibroset suspensions for effective transmission of generated vibrations to ground layers and reliable insulation casing-well units from said vibrations.   
   
   
       13 . Said regulating and/or adjusting units and devices of  claim 12  can be mechanical, and/or electromechanical, and/or electronic, and/or combined depending on design and local conditions.