Multi-purpose drilling and excavating trolley for single track railway tunnel

Abstract

Provides is a multi-purpose drilling and excavating trolley for a single track railway tunnel. A third platform is mounted on a second platform; and the two ends of the bottom of the second platform are connected with stand columns on the two sides correspondingly. First outer platforms are arranged on the outer sides of the stand columns on the two sides correspondingly; pin shafts are arranged on the inner sides of the stand columns on the two sides; and first inner platforms are connected with the stand columns through the pin shafts correspondingly. Telescopic supporting legs are arranged at the bottoms of the stand columns, and are connected with a bottom longitudinal beam. High-strength hinges are mounted on the first inner platforms correspondingly, and the high-strength hinges on the two sides are connected through telescopic rods. The multi-purpose drilling and excavating trolley has a low requirement for configuration of mechanical equipment, and special machines are of no need; the economical efficiency is good; time and expenses occupied by repeated towage of a drilling trolley and a two-lining trolley due to exchanging of the drilling trolley are reduced; the phenomenon that two-lining operation is stopped for waiting due to exchange of the drilling trolley is avoided; procedure connection is closer; the work efficiency is improved; the construction progress is accelerated; the total construction period is shortened; and the construction organization cost is greatly lowered.

Description

technical field [0001] The invention relates to a multi-purpose drilling and excavation trolley for a single-track railway tunnel, in particular to a drilling and excavation trolley which can simultaneously adapt to the excavation construction of the full-section method and the step method of the single-track railway tunnel. Background technique [0002] The surrounding rocks of single-track railway tunnels II and III are constructed by the full-section excavation method, and the surrounding rocks of IV and V are constructed by the step excavation method. Larger, full-section trolleys need to add an operating layer. The surrounding rocks of tunnels are ever-changing, and various grades of surrounding rocks are often interlaced with each other. Surrounding rocks often change by leaps and bounds. After the surrounding rock changes, the excavation method may change, especially when the surrounding rocks leapfrog changes often cause full-section The two excavation methods of th...

AI Technical Summary

Problems solved by technology

The surrounding rocks of tunnels are ever-changing, and various grades of surrounding rocks are often interlaced with each other. Surrounding rocks often change by leaps and bounds. After the surrounding rock changes, the excavation method may change, especially when the surrounding rocks leapfrog changes often cause full-section The two excavation methods of the method and the step method are changed, and the excavation method is changed, the drilling and excavation trolley must be changed, because the height difference between the full-section drilling and excavation trolley and the step method drilling and excavation trolley is large , so two types of excavation trolleys are usually processed during construction. When the full section is used, the full-section drilling and excavation trolley is used, and the smaller drilling and excavation trolley is used for the step method construction, while the single-line tunnel has a smaller section. To switch the drilling and excavation trolley, the back waterproof board laying trolley and lining trolley must be withdrawn from the hole. In the case of a short tunnel, the impact is not too great, but when the tunnel is long, the trolley will be affected for a long time. Time will seriously affect the construction progress of the tunnel, resulting in a waste of construction costs

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