Special-shaped tunnel simulation excavation device

Abstract

The invention relates to a special-shaped tunnel simulation excavation device. The special-shaped tunnel simulation excavation device comprises a mechanical arm, an excavation device and a guide rail, wherein the mechanical arm is installed on a base, the base can be placed on the guide rail, and the excavation device is installed at the front end of the mechanical arm; the excavation device comprises a closed-loop transmission chain, a central large gear and a transmission gear are arranged in the transmission chain and are respectively engaged with the transmission chain, and the transmission gear is mutually engaged with the central large gear; and a first soil cutting plate is fixed to the outer side of the transmission chain, a second soil cutting plate is fixed to the side face of the central large gear, in the working state, the transmission gear drives the central large gear and the transmission chain to rotate, and the first soil cutting plate and the second soil cutting plate work and drive excavated waste soil to a waste soil outlet formed in the center of the central large gear to be discharged. The special-shaped tunnel simulation excavation device has the characteristics of flexibility, portability, mobility and convenience in operation, the test cost of each time can be effectively reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of tunnel excavation, in particular to a simulated excavation device for special-shaped tunnels. Background technique [0002] With the rapid development of my country's economy, the need to build roads connecting mountainous areas has become urgent. At the same time, the development and utilization of urban underground space also requires people to build tunnels to meet these needs. However, due to the different geological conditions in various places, feasibility test research is often required in the early stage of tunnel construction, and tunnel model test is a relatively common way. A large number of scholars have carried out model research on tunnels, but most of the model tests stay in circular tunnels when simulating tunnel excavation, or are excavated manually by hand, and cannot be used for special-shaped (semi-circular, horseshoe-shaped) tunnels. There is a certain gap between the mechanical excavation and...

AI Technical Summary

Problems solved by technology

A large number of scholars have carried out model research on tunnels, but most of the model tests stay in circular tunnels when simulating tunnel excavation, or are excavated manually by hand, and cannot be used for special-shaped (semi-circular, horseshoe-shaped) tunnels. There is a certain gap between the mechanical excavation and the real actual situation. There is a certain gap between the force analysis and the real situation, which leads to a certain deviation between the results of the model test and the possible situation in the real tunnel, which may reduce the Acceptance of model testing

In addition, manual excavation is greatly affected by human factors, and the excavation diameter and inclination angle of the tunnel cannot be very consistent, and it is time-consuming and laborious

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