Side hydraulic loading system for simulation test bed

Abstract

The invention discloses a side hydraulic loading system for a simulation test bed. The system comprises a side wall embedded steel plate, a plurality of fixed buckets which are uniformly distributed in parallel, a plurality of hydraulic cylinders, a plurality of loading cylindrical buckets and a closing plate, wherein, the side wall embedded steel plate is embedded in a concrete casting side wall; the inner ends of the fixed buckets are fixed on the side wall embedded steel plate; the hydraulic cylinders are respectively coaxially and telescopically arranged in the corresponding fixed buckets, and the inner ends are fixedly connected with the side wall embedded steel plate; the loading cylindrical buckets are respectively coaxially arranged in the corresponding fixed buckets and are respectively sheathed outside the corresponding hydraulic cylinders, the outer ends are fixedly connected with the outer ends of the hydraulic cylinders, and the loading cylindrical buckets driven by the hydraulic cylinders can freely telescopically move in the fixed buckets; and the closing plate connects the top end and the bottom end of the side wall embedded steel plate with the outer ends of the fixed buckets into a whole. Driven by the hydraulic cylinders, the lateral hydraulic loading device of the invention drives the loading cylindrical buckets to extrude the soil bodies, thereby simulating the pressure thereof; and the driving pressure of the hydraulic cylinders can be adjusted to simulate the pressure of different soil bodies.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering, and in particular relates to a lateral hydraulic loading device for a simulated test bench. Background technique [0002] It is a scientific and effective method to study the characteristics of shield tunneling machine in underground tunnel construction by means of experiment. Relevant laboratories and universities at home and abroad design corresponding simulation test benches to carry out specific engineering tests. For example, Shanghai Tunnel Engineering Co., Ltd. has developed a large-scale shield tunneling simulation test platform for shield construction tests. By doing simulation tests on the simulation test bench, how to make the test soil in the simulation test bench fully simulate the actual soil layer in the construction process of the shield tunneling machine is very important. In order to simulate the construction of the shield tunneling machine in the deep covering soil,...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the fact that the bag in the loading system of the prior art is easy to be damaged, the loading pressure is small, and the loading pressure is only a few fixed pressures, which cannot continuously simulate the pressure of different soil layers up and down, and cannot truly simulate the state of the soil, and provides A New Lateral Hydraulic Loading System of Simulation Test Bench

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