Rectangular section road header used for digging underground garage

Abstract

The invention provides a rectangular section road header used for digging an underground garage. Dug sections can be various and can be detached and installed as a whole according to construction requirements. The road header comprises a front shield, a spiral conveyer, a middle shield, a tail shield and a hinge oil cylinder and further comprises a cross flower-shaped cutter head and small cutter heads at the front end. The cross flower-shaped cutter head is in a cross shape as a whole and comprises two main cutter beams, two auxiliary cutter beams and a center fish tail cutter, the main cutter beams are perpendicular to the two auxiliary cutter beams, one end of each main cutter beam is of a rhombic and annular shape, the other end of each main cutter beam is fixed to a sleeve, cutters are distributed on the main cutter beams and on the auxiliary cutter beams, and the small cutter heads are arranged at the four corners of a rectangular section. Construction efficiency is high, the digging rate on the section is as high as 97% the soil pressure balance effect of a working face and the front shield can be well adjusted, and smooth deslagging capacity is improved. The road header is multifunctional by distributing the front shield in an existing size and specification, accordingly equipment manufacturing cost is lower, and the road header is economical and practical.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction equipment, in particular to shield boring machine equipment. Background technique [0002] Shield technology does not require a large number of demolition and excavation of the ground. There is no noise, no dust, and no disturbance to the people on the ground. All of them are automatically controlled and the progress of the project is fast. Therefore, it is a method that can reduce engineering pollution and save a lot. Construction technology for project investment. Among them, the pipe jacking machine is a highly mechanized and automated excavation and lining complete set of equipment that adopts the shield method and integrates mechanical, electronic, hydraulic, laser and control technologies. [0003] The problem of nowhere to park vehicles is the result of the city's social, economic, and traffic development to a certain extent. Since the ratio of residents to parking spaces in ma...

AI Technical Summary

Problems solved by technology

The cross-section of the matching rectangular roadheader is 2.8m×5m, without chamfering, and the horizontal net distance of each excavation is zero, which makes it very difficult to control the accuracy of the excavation axis, which increases the difficulty of construction

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