Boom roadheader and excavation method thereof
A cantilever roadheader and cantilever technology, which is used in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of low excavation efficiency, limited excavation section, and large excavation resistance, and achieves excavation flexibility and applicability. High performance, high promotion value, and the effect of improving excavation efficiency
Active Publication Date: 2020-12-04
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology
[0003] The traditional full-face tunnel boring machine excavates through the vertical extrusion of the cutter head on the tunnel face, which results in severe tool wear and slow excavation speed
However, the existing cantilever roadheader, such as the application number 201821324346.7, is a multi-arm type cantilever roadheader equipped with a suspension cutter to break rocks, which can only be excavated by the suspension cutter, and the excavation resistance is large, and the excavation section is limited. The excavation efficiency is low, so it is necessary to develop a cantilever roadheader that can excavate any section with variable diameter and high excavation efficiency, so as to adapt to the excavation of tunnels with various sections
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[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0039] like figure 1 As shown, embodiment 1 is a cantilever roadheader, including a connected host structure 5 and a rear supporting system 3, and the rear supporting system 3 is connected to the rear of the host structure, including a commonly used supporting system for roadheaders. The front end of the host structure 5 is provided with a main drive 2 and a combined excavation device 1, the main drive 2 is fixed on the host structure, the combined excavation ...
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The invention discloses a boom roadheader and an excavation method thereof. The boom roadheader comprises a main machine structure and a rear matching system which are connected, wherein a main driveand a combined excavation device are arranged on the main machine structure, and the combined excavation device is connected with the main drive; and a slag removal device is arranged below the main drive, and the slag removal device is connected with a slag discharging system arranged on the rear matching system. According to the boom roadheader and the excavation method thereof, the combined excavation device is adopted for excavating an excavation face, a center cutter head of the combined excavation device carries out hob extrusion rock breaking advanced excavation on a tunnel, a suspension cutting hob of a telescopic suspension cutting arm carries out later suspension cutting excavation on a tunnel wall excavated by the center cutter head, and excavation and expanding excavation of the tunnel are completed at a time, so that the excavation efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a cantilever boring machine and an excavation method thereof. Background technique [0002] Rock tunnel boring machine (TBM) is a large-scale tunnel excavation equipment integrating mechanical, electronic, hydraulic, laser and other technologies. It plays an important role in the construction of mountain tunnels and urban subway projects. At present, the excavation section of this type of roadheader is basically circular. Although there are a few cases where special-shaped sections such as rectangles and horseshoes can be completed, these special-shaped sections are all used in soft soil tunnel excavation, and have not yet been seen in rock tunnel engineering. , and once the excavation section of this type of roadheader is determined, it cannot be changed again during the application process. Its excavation shape is single, the application range is limited, and it is ...
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IPC IPC(8): E21D9/10E21D9/12
CPCE21D9/1006E21D9/1086E21D9/12E21D9/124
Inventor 叶蕾贾连辉姜礼杰赵华卓普周李建斌文勇亮钱豪王一新
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD