Indoor model tunnel shields for simulating shield tunneling construction in urban subway

Abstract

The invention relates to an indoor model shield construction machine used for simulating the interval tunnel shield construction of urban subway, which comprises a digging device, a helix unearthed device and a propelling unit; wherein, a. in the digging device, a round shield shell is separated into a front soil cabin and a rear engine room by a clapboard, a cutter shaft is arranged in the middle of the clapboard by a cutter bearing, the front end of the cutter shaft is connected with a cutter, and the rear end thereof is connected with a cutter motor by a transmission gear; b. in the helix unearthed device, the front part of a screw rod is positioned in the soil cabin at the back of the cutter, the other parts are sheathed in an unearthed sleeve in the engine room by passing through the clapboard, and the rear end of the screw rod is connected with a motor of the unearthed device; the front end and the rear end of the unearthed sleeve are respectively fixed on the clapboard and the engine room, and the rear part thereof is opened with an unearthed hole; c. in the propelling unit, four longitudinal jacks are distributed at the tail end of the engine room; the machine can simulate the whole process of construction of dynamic tunnelling, unearthing, propelling, assembly, decycling and the like, of an earth pressure balanced shield construction machine, provide the real and accurate test data for the tunnel shield construction of the urban subway as for the adaptability or influence of stratum, and guarantee the efficient and safe process of the urban subway construction.

Description

technical field [0001] The invention relates to a simulation device for shield tunnel construction of a shield machine, in particular to an indoor model shield machine for simulating the construction of a shield tunnel in an urban subway section. Background technique [0002] The indoor model test of the model shield machine is an important means to study the adaptability or influence of the shield machine to the stratum. By simulating the design and construction of the shield tunnel, the experimental data is provided to ensure the efficient and efficient urban subway construction. proceed safely. Some shield models are tested for the purpose of simulating the prototype part, such as the half-section model shield machine made by Japanese scholar Morin (1984), the muddy water model shield machine made by Kurihara Kazuo et al. (1989), Nomoto et al. (1999) The micro-shield machine device manufactured by Tongji University (2006) and the double-hull single-screw model shield mac...

AI Technical Summary

Problems solved by technology

These model shield machines are small in size and have a single consideration factor. Usually, they can only simulate a certain aspect of the performance of the shield machine. greater limitations

Images