Model box applied to large stereoscopic synthesis simulation test bench in geotechnical engineering

Abstract

The invention discloses a model box applied to a large stereoscopic synthesis simulation test bench in geotechnical engineering, wherein four sides of the model box are spliced by a plurality of horizontal loading plates; the top of the model box is formed by splicing a plurality of vertical loading plates; each horizontal loading plate is connected with a horizontal loading actuator through a spheroid joint; each horizontal loading actuator is fixedly connected with a reaction wall through connection bolts; each vertical loading plate is connected with a vertical loading actuator through a spheroid joint; each vertical loading actuator is fixedly connected with a reaction beam; sealing joint strips are embedded between the side surfaces of the adjacent horizontal loading plates. The model box disclosed by the invention can be applied to a simulation test of soil engineering with different functions, such as underground space and excavation simulation tests, foundation and slope engineering simulation tests under the condition of rain and underground water level variation, dynamic response tests of pile foundations and soil around the pile foundations, segment simulation tests, and structure part performance tests; simultaneously, due to the adoption of the model box, the true three-dimensional loading of a large-sized physical model is realized.

Description

technical field [0001] The invention relates to a physical model test device which can be used in geotechnical engineering such as tunnels and subway stations, foundation engineering, slope engineering, retaining structures, etc., especially a test platform which can carry out three-dimensional comprehensive simulation tests on large physical models. In particular, it relates to a model box used for a large-scale three-dimensional comprehensive simulation test bed of geotechnical engineering. Background technique [0002] The geomechanical model test of geotechnical engineering such as subway engineering, tunnel and underground cavern engineering, foundation engineering, slope engineering, and retaining structure is an important means of studying large-scale geotechnical engineering problems. It has been widely used at home and abroad, and has been used in It plays an important role in the process of scientific research and engineering construction. At home and abroad, fruit...

AI Technical Summary

Problems solved by technology

As the scale of geotechnical engineering becomes larger and larger, the engineering problems that arise become more complex, and the existing test equipment can no longer meet the needs of engineering practice.

[0005] CN101086494A provides a large-scale model test platform, the maximum size of the model box provided by it is 15m × 5m × 6m (length × width × height), but the test platform provided by this prior art can only pass the upper reaction beam to the model For upper loading, true three-dimensional loading cannot be realized, and it cannot meet the needs of three-dimensional comprehensive simulation tests

Images