A low-slump concrete automatic transportation system and construction method for large-slope cavern lining

Abstract

The invention provides a large-slope cavity lining low-slump concrete automatic transportation system and a construction method. The system comprises a frequency-conversion winch which is fixed to theupper flat section of a flood discharging tunnel; trolley tracks are paved on a bottom plate lining of a whole fallen tail; a material conveying trolley is disposed on the trolley tracks; the material conveying trolley is connected with a winch barrel of the frequency-conversion winch through a winch steel wire rope and is driven by the winch to move along the trolley tracks; a side wall lining trolley is in sliding fit with the trolley tracks; a self-adjustable-angle vertical feeding structure is hinged to the top of the side wall lining trolley; the other end of the self-adjustable-angle vertical feeding structure is supported on the trolley tracks and connected with the material conveying trolley so as to provide the travelling motive power; and a telescopic horizontal belt rotary device used for side wall lining concrete pouring is disposed on the side wall lining trolley. Through the system, the concrete construction quality of a high-speed water flowing area can be increased, generation of concrete temperature cracks is effectively reduced, and meanwhile the technical blank of large cavity concrete continuous input is made up through the application of the system.

Description

technical field

[0001] The invention relates to the technical field of low-slump construction of cavern lining, in particular to an automatic transport system and construction method of low-slump concrete for cavern lining with large slope. Background technique

[0002] The flood discharge tunnel project of Baihetan Hydropower Station mainly includes 3 flood discharge tunnels, and each flood discharge tunnel is composed of the entrance gradient section, the upper flat section and the Longluowei section. The Longluowei section is composed of a Waqi curve section, a slope section and an anti-arc section. The Warch curve method is Z=X 2 / 500+0.015X, the slope section is the connecting transition section between the Wauchi curve and the anti-arc, the slope of the 1# and 2# flood discharge tunnels is 1:4, the slope of the 3# flood discharge tunnel is 1:3.72, and the anti-arc section is located Downstream of the slope section, the anti-arc radius is 300m. The 1# and 2# flood di...

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