Model shield tunneling machine starting device capable of achieving self-balancing of counter-force

Abstract

The invention discloses a model shield tunneling machine starting device capable of achieving self-balancing of counter-force. A model shield tunneling machine is arranged on the tunneling side of a test soil box frame, and hydraulic jacks are arranged at one end, far away from the test soil box frame, of the model shield tunneling machine. The model shield tunneling machine starting device comprises a counter-force seat and a guide rail, wherein the counter-force seat and the guide rail are both installed on the work ground, the counter-force seat is arranged on one side, far away from the test soil box frame, of the model shield tunneling machine, the counter-force seat and the test soil box frame are connected with each other through cross beams, and the model shielding tunneling machine is arranged on the guide rail. The model shield tunneling machine starting device capable of achieving the self-balancing of the counter-force can provide the counter-force to the model shield tunneling machine, the counter-force is transmitted to the test soil box frame through the cross beams, and therefore the self-balancing of the counter-force is achieved. Due to the fact that a reaction wall does not need to be built in the process of the model test, on the one hand, the occupied site space of test equipment is reduced and test expense is saved, on the other hand, guide can be provided for starting of the model shield tunneling machine, consistency of the staring direction and the axis direction of a tunnel cave to be built as planed is guaranteed, and posture change of the shield tunneling machine is avoided.

Description

technical field [0001] The invention relates to a starting device for a model shield machine, in particular to a starting device for a model shield machine capable of realizing counterforce self-balancing. Background technique [0002] The construction of urban subway shield tunnels will inevitably have an impact on the surrounding strata and the environment. Field tests require a long period of time, large funds, and are easily affected by construction. Therefore, it is an important research method to use model shield machines to carry out indoor tunneling tests. Based on this, scholars at home and abroad have developed part of the shield model to simulate the partial test of the prototype, such as the half-section model shield machine developed by Japanese scholar Morin (1984), and the mud-water model shield machine developed by Kazuo Kurihara (1989). Machine, the miniature shield machine device developed by Nomoto et al. (1999), the double-shell single-helix model shield ...

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Problems solved by technology

[0003] Due to the complex start-up operation of the shield machine, space occupation, and high cost, the indoor shield tunneling model tests did not consider the links of start-up and negative ring segment assembly

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