Multifunctional slurry shield test system for teaching

Abstract

The invention relates to a multifunctional slurry shield test system for teaching. The system comprises a model box (1), a shield tunneling machine, a slurry feeding component, a slurry discharge component, a slurry box (35), a collection box (33), a sampling box (38) and a hydraulic power unit, wherein the side surface of the model box (1) is provided with an opening which communicates with the front part of the shield tunneling machine; the shield tunneling machine also communicates with the slurry box (35) and the collection box (33) through the slurry feeding component and the slurry discharge component respectively; a communication pipe (42) is arranged between the slurry box (35) and the collection box (33); the shield tunneling machine forms a slurry circulating system together with the slurry feeding component, the slurry discharge component, the slurry box (35) and the collection box (33). Compared with the prior art, the multifunctional slurry shield test system for teaching is simple in structure, adopts organic glass as material, can show a slurry shield test process in all aspects, has the function of simulating an excavation face stability test of the slurry shield tunneling machine in a non-tunneling state, and also has the function of simulating tunneling of the slurry shield tunneling machine.

Description

technical field [0001] The invention belongs to the technical field of civil engineering testing, and relates to a multifunctional teaching mud-water shield testing system. Background technique [0002] The scale of underground space development in my country is increasing day by day, and the demand for underground engineering professionals is also increasing. This puts forward higher requirements for the teaching and training of professionals. Slurry-water balance shield tunneling is one of the main methods of shield tunnel excavation. , is widely used in the development of underground space in my country, but its manufacture is complicated, expensive and the construction site is highly dangerous, so it is difficult for students to have the opportunity to actually experience it. At the same time, the tutorial explanation is relatively abstract, difficult to understand, and the teaching effect is poor. The teaching demonstration of the mud-water shield testing machine can ena...

AI Technical Summary

Problems solved by technology

Although the system can simulate the excavation process of mud-water shield machine in the construction of underwater tunnel with high water pressure, and simultaneously record the excavation parameters of earth pressure, water pressure, displacement and shield machine, there are still deficiencies, for example, The space size of the mud tank in this system is a fixed value and cannot be adjusted in size, which makes it difficult to simulate and study the influence of the size of the mud tank on the stability of the excavation face; the system device does not have an excavation face baffle, and does not have the ability to simulate The function of the stability test of the excavation surface of the slurry shield machine in the non-excavation state, and the whole device uses generally opaque profiles, which is not conducive to visually display the excavation process of the slurry shield machine

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