A speed-controllable model experiment device and method for simulating soil lateral movement

Abstract

The invention relates to a model experimental device and an experimental method for simulating soil lateral displacement with a controllable speed. The experimental device comprises a bottom plate; reserved bolt holes are formed in the bottom plate; bolts are arranged in the reserved bolt holes for fixing the bottom plate; reaction plates are arranged at two ends of the bottom plate; a plurality of connecting rods are arranged between the two reaction plates on the two ends; linear bearings are sleeved on the connecting rods; the linear bearings are connected with a frame; glass plates are arranged on the sides, away from the linear bearings, of the frame; loading plates are arranged at the two ends of the frame; the frame, the glass plates and the loading plates constitute a simulated soil storage box; and the frame drives the simulated soil storage box to move through the movement of the linear bearings along the connecting rods; and a speed regulating jack is arranged between one ofthe loading plates and the adjacent reaction plate. By adopting the model experimental device, the lateral displacement speed of a soil body can be controlled by the speed regulating jack, and the lateral displacement direction of the soil body is stable.

Description

technical field [0001] The invention relates to a model test device and a test method, in particular to a model test device and method for simulating soil lateral movement with controllable speed. Background technique [0002] A ten-thousand-foot tall building is inseparable from a solid foundation. The pile foundation is widely used as the foundation of large structures due to its advantages of good stability, large bearing capacity, and small settlement. However, due to the limitation of urban space, large commercial complexes, urban viaducts, subway stations and other large buildings are often built around the city center, resulting in the development of underground spaces such as large-area stacking or adjacent to existing buildings such as foundation pits and tunnels. Digging happens. Heaping or unloading adjacent to the pile foundation will cause the soil to move laterally and generate additional loads on the pile foundation. Due to the complexity of such problems, th...

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Problems solved by technology

Due to the influence of the construction environment and the lack of measurement means, it is difficult to realize the test of the influence of soil lateral movement on the pile foundation based on the site. Therefore, the engineering simulation of the influence of soil lateral movement around the pile on the pile foundation can be completed through model tests, and a speed A controllable model experiment device and method for simulating soil lateral displacement, providing services for pile foundation model tests affected by lateral soil displacement

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