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

An automatic transportation and slump technology, applied in wellbore lining, tunnel lining, earthwork drilling, etc., can solve the problem of difficult transportation of concrete, save equipment and labor costs, reduce the occurrence of concrete temperature cracks, and improve construction quality Effect

Active Publication Date: 2020-10-09
CHINA THREE GORGES PROJECTS DEV CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the deficiencies in the existing concrete construction of the dragon tail of the flood discharge tunnel, the present invention provides an automatic transportation system for low-slump concrete in the lining of large-slope caverns. Concrete Transportation Problems

Method used

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

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Experimental program
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Effect test

Embodiment 1

[0048] see Figure 1-5 , an automatic transportation system for low-slump concrete in the lining of large-slope caverns, which includes a frequency conversion hoist 1 fixed on the upper flat section 2 of the flood discharge tunnel, and the upper flat section 2 of the flood discharge tunnel is set at the starting point 3 of the dragon's tail section Previously, after the starting point 3 of the Longluowei section, there are successively the Woqi curve section 4, the slope section 15, the anti-arc section 18 and the lower flat section 19, and together constitute the Longluowei; the floor lining 5 of the entire Longluowei A trolley track 6 is laid on the top, and a material transport trolley 9 is arranged on the trolley track 6. The material transport trolley 9 is connected with the winch of the frequency conversion hoist 1 through a hoisting wire rope and drives it to move along the trolley track 6; A side wall lining trolley 12 is slidingly fitted on the trolley track 6, and th...

Embodiment 2

[0073] The construction method of using the automatic transport system for lining low-slump concrete in large-slope caverns, the general construction principle is: the sequence of concrete construction is from downstream to upstream; it includes the following steps:

[0074] Step 1: Transport the 5-8cm low-slump concrete to the Longluowei unloading point with a rebuilt dump truck;

[0075] Step 2, unloading the concrete on the restructured dump truck to the transport trolley 9;

[0076] Step 3, the material transport trolley 9 is powered by the frequency conversion winch 1, and walks along the trolley track;

[0077] Step 4, the material transport trolley 9 transports the concrete material to the self-adjusting angle vertical feeding structure 10 for unloading, and the self-adjusting angle vertical feeding structure 10 runs with a belt for feeding;

[0078] Step five, the self-adjusting angle vertical feeding structure 10 transports the concrete to the telescopic horizontal b...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
CPCE21D11/105
Inventor 王孝海彭亚康建荣林宏陈敏罗刚吴世斌王纪丰黄纪村刘凡张继屯张相明彭培龙吴兴民靳阔军冯博
Owner CHINA THREE GORGES PROJECTS DEV CO LTD
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