Simulation test platform for researching geotechnical engineering with potential failure surface

Abstract

The invention provides a geotechnical engineering simulation test platform. The geotechnical engineering simulation test platform comprises a simulation model system, a loading system, a rainwater simulation system and a data acquisition system. The simulation model system adopts various rock-soil similar simulation materials to pile or pour a geotechnical engineering model; a reinforcing component can be implanted in the geotechnical engineering model to simulate treatment engineering; and an observation instrument can be implanted to combine with measurement of external observation equipmentto form a model deformation data acquisition system. The rainwater simulation system can simulate rock-soil softening and corrosion and observe the stability of the geotechnical engineering. The loading system can simulate geologic stress field false triaxial loading. Therefore, the system has multiple functions of realizing geologic stress field simulation, large-scale simulation, water-soil coupling simulation and data automatic acquisition, is high in plasticity, simple to manufacture and convenient to operate, can simulate the softening phenomena such as erosion and corrosion of various kinds of geotechnical engineering with potential failure surfaces under the action of rainwater, and can reappear the geological disaster destruction process and engineering reinforcing treatment effect through three-dimensional simulation tests.

Description

technical field [0001] The invention relates to a geotechnical engineering simulation test platform, in particular to a geotechnical engineering physical simulation test platform for the failure process and reinforcement effect of the geotechnical engineering with a potential failure surface, and belongs to the technical fields of civil engineering construction and geological disaster control. Background technique [0002] The ground and underground geotechnical engineering research of highway, railway, mining, water conservancy, and urban construction focuses on the stability evaluation and reinforcement effect of rock and soil mass. In the evaluation of geotechnical engineering stability, in the process of theoretical analysis calculation and numerical simulation test, the mathematical calculation method must adopt abstract assumptions, and many geotechnical parameters use the average value and mechanical conversion. The result is the engineering environment of the research...

AI Technical Summary

Problems solved by technology

According to domestic reports so far, most of the slope simulation tests are aimed at specific solid solid models of engineering fillings, and heavy objects are placed on the sliding mass to exert gravity to cause potential sliding of the sliding mass; however, it is impossible to simulate the geological structural stress outside the engineering entity The actual effect of the field on the sliding body cannot be observed, and the effect of the groundwater body on the weak structural surface and sliding surface cannot be observed, let alone repeated experiments for the same project to change the weak surface and boundary conditions to explore the actual unknown shape of the weak surface

Another application market--subterranean engineering simulation tests are mostly x, h two-dimensional plane tests, which focus on the effect of the geological structural stress field on the surrounding rock of the chamber; however, the size effect of the two-dimensional plane solid model cannot form groundwater The flow field cannot simulate the softening and dissolution of groundwater on the weak surface of the geological structure, let alone the formation and change of the groundwater seepage network of the rock mass under the stress of the geological structure; especially after the two-dimensional model is damaged, it cannot be reinforced Repair, so it is impossible to predict the effect of the same model after reinforcement and repair

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