Split type hard rock heading machine

Abstract

The invention provides a split type hard rock heading machine, and belongs to the field of engineering machinery. The heading technology comprises the steps that a cutter head arc-shaped cutter annularly cuts rock cylinders; a cutter head center water grinding drill and a splitter take out rock cores, wherein pipe pieces are longitudinally cut between the rock cylinders through cutting saws; the pipe pieces are transversely separated through a cutter head center cutting saw; and a middle cutter head front support positions a cutter head completed hard rock wall, a rear support pushes a middlecutter head to rotationally cut and separate the pipe pieces, a large cutter head front support positions the middle cutter head completed rock wall, the rear support pushes the middle cutter head torotationally cut and separate the pipe pieces, and an external discharging system discharges all the pipe pieces. According to the split type hard rock heading machine, the heading space hard rock isused for manufacturing pipe piece lining heading rock walls, the investment is saved due to the selling income of the remaining pipe pieces, the hard rock cutting amount is small, the resource utilization rate is high, the heading speed is high, the heading cost is low, the engineering investment is small, and the service life of a building is 1000 years. The problems that in the prior art, the hard rock cutting amount is large, resources are wasted, the heading speed is low, the heading cost is high, concrete pipe pieces are purchased, and the service life of the building is short are solved.

Description

technical field [0001] The invention relates to a split type hard rock tunneling machine, which belongs to the technical field of engineering machinery. Background technique [0002] Advantages of existing hard rock excavation technology: Full-face hard rock tunnel boring machine (TBM) is a highly automated equipment integrating machinery, electronics, hydraulic pressure, laser, control and other technologies. Discharging, supporting and installing segments and other operations, with one-time construction, not affected by external climate, and reduced impact on ground buildings and traffic, it is ideal for hard rock engineering excavation such as urban underground pipe corridors, subway tunnels, railway buses, and military facilities. The mechanical equipment with the most development potential. [0003] Technical problems of existing hard rock excavation engineering: (1) waste of resources: the prior art hard rock excavation engineering does not utilize the hard rock resou...

AI Technical Summary

Problems solved by technology

[0003] Technical problems of existing hard rock excavation engineering: (1) waste of resources: the prior art hard rock excavation engineering does not utilize the hard rock resources that have formed the earth's crust for billions of years, and cuts the full section of high-quality hard rock into construction waste to waste resources; discharge buildings Garbage generates transportation costs; storing construction waste occupies land and pollutes the environment; purchasing reinforced concrete segments generates transportation costs; the purchased reinforced concrete segments are mined for iron ore to make steel and limestone to produce concrete, which pollutes the environment in many ways, consumes non-renewable resources, Waste of investment and other issues; (2) Slow progress of excavation: Existing technology excavation has a large amount of hard rock cutting, fast tool wear, difficult control of excavation posture, floating segments, difficult handling of isolated rocks, stuck screw conveyor, stuck roadheader Many problems are waiting to be solved; (3) The risk of the geological environment is high: the existing hard rock excavation technology in the process of excavating the tunnel tunnel, the excavation thrust is thousands of tons, it is easy to cause ground uplift or subsidence, and the ability to interfere with the geological environment is difficult to avoid. Risks; (4) High cost of excavation: Excavation equipment is tens of millions of RMB, scrapped or overhauled after a service life of ten kilometers, and depreciation cost of excavation equipment is high; (5) High project cost: resources are not utilized, excavation progress is slow, and cutting engineering volume is large 1. The high depreciation cost of equipment leads to high project cost; (6) the high cost of project use; the prior art hard rock excavation pipe gallery tunnel adopts the purchase of reinforced concrete segment lining, and the nature of the lining material leads to the design service life of the pipe gallery tunnel is only 100 (7) There are many problems when the service life of the pipe corridor tunnel expires: first, it cannot be used beyond the time limit, and the overtime use will cause catastrophic paralysis of urban water, electricity, gas, heating, and telecommunications. Risks; second, it cannot be demolished and reconstructed at the original site, the demolition and reconstruction period of the original site is long, the city cannot operate normally during the demolition and reconstruction period, and the people are difficult to produce and live normally; the third is that it is difficult to select another site for reconstruction and replacement. Huge investment has a never-ending cycle of a hundred years, and the source of long-term huge investment is a major problem; (8) Leaving hidden dangers: No matter which method is used to solve it, it will form long-term, huge human, financial and material resources and environmental costs that cannot be borne. It is a hidden danger that is difficult to solve for future generations.

[0004] Solve the engineering problems of existing tunneling technology Direction: the use of hard rock resources can solve the waste of resources in existing tunneling technology, reduce the cost of discharging construction waste, reduce land occupation and pollute the environment, reduce the cost of purchasing concrete segments, high construction costs, and construction projects The problem of short service life, many hidden dangers left behind by the expiration of the service life of the project, etc.

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