Physical simulation experiment device and method for lithosphere tectono deformation

Abstract

The invention discloses a physical simulation experiment device and method for lithosphere tectonic deformation. The experiment device comprises a drum type centrifuge sealed cabin, a drum type centrifuge driving power cabin, a tectono deformation device control system and a motion control system, wherein hanging baskets are hung at the two ends of a cantilever of a centrifuge, tectono deformation experiment boxes are placed in the hanging baskets, and a tectono deformation control system accurately controls deformation of experiment materials in the experiment boxes and can simulate tectono deformation processes of various lithosphere scales; and the experiment device further comprises a real-time monitoring camera and a high-speed image acquisition device. According to the invention, when the centrifuge operates, the centrifugal force at the bottom of the hanging basket can reach 2500g, so that a lithosphere tectono deformation physical simulation experiment in a supergravity environment is realized; loose quartz sand can be used as an experiment material, so that the simulation experiment is more convenient; the experiment device is low in manufacturing cost, large in experimental space, high in bearing capacity, high in experimental material deformation control precision and capable of continuously monitoring data and recording tectonic deformation images in real time.

Description

technical field [0001] The invention relates to a physical simulation experiment device and an experiment method, in particular to an experiment device and a method for a physical simulation experiment of lithosphere structural deformation. Background technique [0002] Structural deformation physical simulation experiment is a method that can simulate and study large-scale geological structural deformation under laboratory conditions, and has wide applicability. Physical simulation experiments in the supergravity environment created by centrifuges have been greatly developed in the middle of the last century. In recent decades, foreign scholars have used centrifuges to carry out physical simulation experiments of supergravity structures. Significant progress has been made in research fields such as Zhang and mid-ocean ridge spreading mechanisms, fold-thrust structures, strike-slip pull-apart structures, gypsum-salt and magmatic diapir structures. [0003] Centrifuge techno...

AI Technical Summary

Problems solved by technology

[0004] At present, the drum centrifuges at home and abroad adopt the rotary structure of the turntable, and the size of the structural physical simulation experiment box is small, only a few centimeters to more than ten centimeters, and it is difficult to accurately simulate the actual geological structure phenomenon; the original layout of the structural experiment box can only It is fixed on the turntable of the centrifuge, which limits the use of viscous materials for the experimental materials, and cannot use loose experimental materials; the physical simulation experiment box has no power drive equipment, and the deformation rate cannot be accurately controlled. When the operating acceleration is greater than 300g, it cannot be accurate. Controlling the deformation of experimental materials

Therefore, the existing drum centrifuges cannot meet the needs of structural physical simulation

[0005] At present, the maximum acceleration of the boom-type geotechnical centrifuges at home and abroad is less than 600g, and the power drive device in the experimental cabin can only be controlled below 300g; when the running acceleration is greater than 300g, the power drive equipment in the experimental cabin cannot be controlled and cannot be accurate. Control the deformation of experimental materials; the high-power power consumption of centrifuges cannot meet the long-term running cost control of structural physics simulation experiments; the structure is complex and the cost is extremely high

Therefore, the existing arm-type geotechnical centrifuges cannot meet the needs of structural physical simulation.

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