Cable penetrating method for single-tower cable hoisting

Abstract

The invention provides a cable penetrating method for single-tower cable hoisting, which comprises the steps of 1) arranging a tower crane on one side of a river bank, and bringing a guide cable to the river bank through a ferry; 2) pulling the head end of the guide cable to the mountain top of the river opposite bank through a first winch, wherein the tail end of the guide cable is connected witha traction cable; 3) continuously pulling the guide cable by using the first winch, driving the traction cable to cross the river valley, turning the traction cable through a steering wheel of a first ground anchor on the mountain top, and bringing the traction cable back to one side of the river bank through the guide cable, wherein a main cable is attached to the traction cable through a rope clamp; and 4) driving the main cable to penetrate through a steering wheel of a second ground anchor arranged on one side of the river bank by the traction cable, climbing over a cable saddle on the top of the tower crane, penetrating into a crown block, crossing the river valley and reaching the first ground anchor on the mountain crest to be fixed. The single-tower cable hoisting method can be applied to the complex terrain where traffic is not easy to reach on one side of the river valley.

Description

technical field [0001] The invention relates to a construction method, in particular to a cable threading method for cable hoisting. Background technique [0002] For a single-tower cable crane in which one bank is combined with a buckle and a tower, and the other bank is a complex terrain with steep mountains and traffic can't reach it, the existing technology cannot realize the cable-threading process when there is no tower and rock anchor. [0003] The current cable threading technology construction is slow for the main cable threading construction with large diameter and heavy weight, and the safety guarantee rate is low. When several main cables (load-bearing cables) work as a group at the same time, the uneven tightening degree cannot be effectively controlled. and adjustments. [0004] For the unreasonable layout of the traction cable, the reduction of the traction force and the adjustment of the speed cannot be realized. [0005] For the routing of the hoisting rop...

AI Technical Summary

Problems solved by technology

[0002] When one bank is a single-tower cable crane with a combination of suspension and buckle towers, and the other bank is a complex terrain with steep mountains and traffic cannot reach it, the cable threading process without tower rock anchors cannot be realized by the existing technology.

[0003] The current cable threading technology construction is slow for the main cable threading construction with large diameter and heavy weight, and the safety guarantee rate is low. When several main cables (load-bearing cables) work as a group at the same time, the uneven tightening degree cannot be effectively controlled. and adjust

[0004] The layout of the traction cable is unreasonable, and the reduction of the traction force and the adjustment of the speed cannot be realized.

[0005] For the layout of the hoisting rope, due to the small number of pulley blocks, the tension of the hoisting rope is too large, and because the rope tail is arranged differently, the hook cannot be lowered when it is empty, etc.

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