Construction method for removing the main cable of a cable crane
A technology of cable cranes and construction methods, applied in the direction of cable cranes, cranes, load hanging components, etc., can solve the problems of long construction period, safety risks of high-altitude operations, large resource occupation, etc., and achieve the effect of solving safety risks
Active Publication Date: 2020-04-28
中国水利水电第七工程局有限公司
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Problems solved by technology
The above-mentioned demolition process has disadvantages such as long construction period, large resource occupation, and safety risks of working at heights.
Method used
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[0027] The present invention is further described below in conjunction with specific embodiment, and specific embodiment is the further description of the principle of the present invention, does not limit the present invention in any way, and the identical or similar technology of the present invention all does not exceed the scope of protection of the present invention.
[0028] In conjunction with the accompanying drawings.
[0029] The method of the present invention will be described below by taking the removal of the main cable of a certain engineering cable crane as an example.
[0030] (1) Design and arrangement of drag rope-guided ground anchors: the drag-rope-guided ground anchors are mainly used for removing the guide drag ropes from the main cable of the cable machine. The cables are removed and a 30t guide ground anchor is buried at the axis X0-016.00 of the original main vehicle track foundation on the left bank. at 016.00. The guide ground anchor must be pulle...
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The invention discloses a cable crane main cable dismantling construction method. The cable crane main cable dismantling construction method comprises the steps of laying a main cable ground channel,relaxing a main cable for the first time, dropping the main cable for the second time, dropping the main cable on the main cable ground channel, feeding the main cable to a main cable reel to be recovered, and dismantling the main cable ground channel. As for laying of the main cable ground channel, the steps include that carrier roller devices and guiding ground anchors are arranged on the groundbelow the cable crane main cable; and the carrier roller devices are arranged on the ground along a main cable recovery moving route at intervals, and the guiding ground anchors are arranged on all turning positions of the main cable during ground recovering and moving. According to the construction method, an air main cable crossing channel is optimized to form a ground channel on a dam surfaceof a hydropower station dam, auxiliary facilities such as carrier roller sets and the guiding ground anchors are adopted on the dam surface to arrange the main cable ground channel, temporary bearingcable erection and dismantling and temporary bearing code installation and dismantling are omitted, main cable demolition high-altitude work is optimized into ground work, and the main cable high-altitude work safety risks are completely solved.
Description
technical field [0001] The invention belongs to the technical field of dismantling and construction of a cableway system of a cable crane, and is suitable for the construction work of dismantling the main cable of all the cableway systems of the cable crane of the hydropower station, especially suitable for the construction operation of dismantling the main cable of the cableway system of the cable crane with the main cable tensioning mechanism of the cable crane. Background technique [0002] The hydropower station has entered the production and operation period during the removal of the cable crane. During the removal of the cable crane, it is necessary to ensure the safe operation of the power plant's high-voltage lines, the safe operation of the dam crest and ship lift approach channel equipment, and the safe operation of the reservoir area in front of the dam. The biggest safety risk of cable crane dismantling lies in the dismantling construction of the main cable of the...
Claims
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IPC IPC(8): B66C21/00B66C13/00
CPCB66C13/00B66C21/00
Inventor 宁德奎万明栋范道林简易成林晓旭张巨会刘浩李亚军周兵
Owner 中国水利水电第七工程局有限公司