Low-cost long-service-life fast-built hard rock pipe gallery tunnel

Abstract

The invention discloses a low-cost long-service-life fast-built hard rock pipe gallery tunnel, and belongs to the field of underground engineering. Existing pipe gallery tunnels crush hard rock full sections to be discharged as construction waste, the construction cost is high, resources are wasted, the service life is short, and the construction speed is low. A rock core is taken out by a centralwater drill splitter; rock barrels are cut by an arc-shaped cutter; segments are longitudinally cut by rock barrel cutting saws; the segments are transversely separated by a central saw; and a middlecutterhead supports to complete a hard rock wall, a rear support pushes a cutterhead to rotatably cut the separated segments, a large cutterhead supports the middle cutterhead to complete the rock wall, the rear support pushes the cutterhead to rotatably cut the separated segments, and the segments are discharged by a discharging system. A reinforced segment lining is manufactured by utilizing tunneling space hard rock to complete the rock wall, residual segment sales income pays off investment, the hard rock cutting amount is small, the resource utilization rate is high, the construction speed is high, the tunneling cost is low, and the service life is long. A series of problems of large hard rock cutting amount, resource waste, low tunneling speed, high tunneling cost, purchase of concrete segments, short service life, high use cost and the like in the prior art are solved.

Description

technical field [0001] A low-cost, long-life and rapid construction of a hard rock pipe gallery tunnel, specifically a main body of a low-cost, long-life and rapid construction of a hard rock pipe gallery tunnel, belongs to the technical field of underground engineering construction. Background technique [0002] The problems existing in the construction of reinforced concrete hard rock pipe gallery tunnels in the prior art: (1) waste of resources, pollution of the environment, and high construction costs; (2) non-renewable resources are wasted by unused hard rock that has existed for billions of years; (3) Crushing the full section of high-quality hard rock into construction waste increases the cost of excavation; (4) Discharging construction waste produces transportation costs and pollutes the environment; (5) Storing construction waste produces land occupation costs and land occupation indicators; (6) Purchase steel bars Concrete segments generate the costs of purchasing ...

AI Technical Summary

Problems solved by technology

[0002] The problems existing in the construction of reinforced concrete hard rock pipe gallery tunnels in the prior art: (1) waste of resources, pollution of the environment, and high construction costs; (2) non-renewable resources are wasted by unused hard rock that has existed for billions of years; (3) Crushing the full section of high-quality hard rock into construction waste increases the cost of excavation; (4) Discharging construction waste produces transportation costs and pollutes the environment; (5) Storing construction waste produces land occupation costs and land occupation indicators; (6) Purchase steel bars Concrete segments generate the costs of purchasing segments and transporting segments; (7) The purchased reinforced concrete segments have problems such as iron ore mining, steelmaking and limestone mining, concrete production, repeated investment, repeated consumption of resources, and repeated pollution of the environment. (8) The large amount of excavation hard rock cutting engineering leads to slow excavation speed, fast tool wear and cost, (9) Difficult to control the excavation posture, floating segments, difficult to handle isolated rocks, stuck screw conveyor, stuck roadheader and many other problems. Solution; (10) In the process of excavating hard rock pipe gallery tunnels, the excavation thrust is thousands of tons, which is likely to cause ground uplift or subsidence, interference with the geological environment, etc., which are difficult to avoid and control, and the risks are high; (11) The excavation equipment costs hundreds of millions of yuan and uses Tens of kilometers of service life are scrapped or overhauled, leading to high excavation costs and high project costs: (12) Unutilized resources, slow excavation speed, and large full-section cutting work, resulting in high project costs; (13) High depreciation of excavation equipment, purchase of reinforced concrete The nature of the segments and lining materials determines that the design life of the pipe gallery tunnel is 100 years. The catastrophic risk of urban water, electricity, gas, heating, and erratic communication paralysis; second, it is impossible to demolish and rebuild the original site, and the demolition and reconstruction period of the original site is long. Reconstruction and replacement, another site selection, reconstruction and replacement, there are major problems such as whether there is suitable underground space, a huge investment in a hundred years, a never-ending cycle, long-term huge investment sources, etc.; It cannot be solved by any method, and it will form a long-term, huge human, property and environmental cost that cannot be borne. It is a hidden danger that is difficult to solve for future generations.

[0003] The problem to be solved by the present invention: adopt new technology to make full use of the precious resources of hard rock in the excavation space, build a low-cost, long-life and fast construction of hard rock pipe gallery tunnel, and completely solve the waste of resources and emissions of concrete pipe gallery tunnels built by existing excavation technology. Construction waste costs and land occupation indicators, environmental pollution, cost of purchasing concrete segments, high construction costs, short service life of construction projects, and many hidden dangers that are difficult to solve when the service life of the project expires

Images