Horizontal loading device for geotechnical centrifuge modeling test

Abstract

The invention discloses a horizontal loading device for a geotechnical centrifuge modeling test. A loading bracket is fixed on a model box, and a motor is arranged between two beams of the loading bracket; and the motor is mounted on a motor bracket, the motor bracket is fixed at the lower part of a height adjusting bracket, the upper part of the height adjusting bracket is fixed at the lower part of the loading bracket, and the height adjusting bracket is enabled to rise / fall through bolt adjustment. A main shaft of a speed regulating motor is connected with an input shaft of a speed reducer through a shaft coupling, the speed reducer is mounted on a speed reducer bracket, an output shaft of the speed reducer is vertical to the input shaft of the speed reducer, and then, rotation torque of the motor can be changed into horizontal moving pull or push force; and four concentric arc grooves are formed around the center hole of one face of the speed reducer bracket and connected with the motor bracket through bolts, a loading angle is adjusted through rotating the speed reducer bracket, and the speed reducer is mounted on the other face of the speed reducer bracket. The horizontal loading device is applicable to various horizontal loading models for the centrifuge modeling test and has the characteristics of adjustable loading speed, high loading accuracy, adaptation to high-centrifugal-force environments, and the like.

Description

technical field [0001] The invention relates to a geotechnical centrifugal simulation test device, in particular to a horizontal loading device for a geotechnical centrifugal simulation test. Background technique [0002] Geotechnical centrifugal model test is a physical simulation technology that is widely concerned and vigorously developed in the international geotechnical engineering field. It is widely used in various fields of geotechnical engineering. The whole process of body deformation can be simulated more realistically the stress-strain constitutive relationship of soil. [0003] Whether the boundary conditions of the model are correct or not during the geotechnical centrifugal simulation test is directly related to the accuracy of the test data and the reliability of the results. During the test, it is often necessary to apply vertical or horizontal external forces to the model or structure to meet the stress-strain conditions of the prototype structure. It is u...

AI Technical Summary

Problems solved by technology

The early experiments were mostly designed specifically for specific experiments, and the structural flexibility and versatility were poor; the airborne manipulators that appeared in recent years have achieved versatility and flexible control of the experimental process, but the loading range is limited and the centrifugal acceleration is strictly limited. Requirements, the key is that the whole set of equipment is built high, so it is not suitable for promotion

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