Subdivisional tensioning system for pressure dispersing type anchor cable

Abstract

The invention provides a subdivisional tensioning system for a pressure dispersing type anchor cable. The subdivisional tensioning system comprises a single-hole jack, a support cylinder and a connector, wherein an externally connected hot-rolled ribbed steel penetrates through the center of the single-hole jack; the support cylinder provides a reacting force platform for the single-hole jack; the connector is arranged in the support cylinder, the connector comprises a first connecting end, steel stranded wires of the pressure dispersing type anchor cable penetrate through the first connecting end and are detachably fixed to the first connecting end, the double-hole connecter further comprises a second connecting end opposite to the first connecting end, and the second connecting end is used for connecting the externally connected hot-rolled ribbed steel; and the connector can move in the support cylinder in the tensioning direction of the steel stranded wires. The steel stranded wires of the pressure dispersing type anchor cable are fixed to the first connecting end of the connector one by one in a subdivisional manner according to the length of the steel stranded wires, and the subdivisional tensioning of the pressure dispersing type anchor cable is realized. By adopting the subdivisional tensioning system, the construction process of the pressure dispersing type anchor cable can be simplified, and the weight of a tensioning tool is greatly reduced.

Description

technical field [0001] The invention relates to the field of anchoring engineering, in particular to a sub-unit tensioning system of a pressure dispersion type anchor cable. Background technique [0002] The anchoring project adopts prestressed anchor cable technology. During the construction process of the structure to be reinforced and before it is delivered for use, a large prestress is applied to the project to be reinforced in advance, so that the reinforced structure remains stable. It has been widely used in permanent civil reinforcement projects such as reinforcement of high slopes, tunnel chambers, dam foundations and deep foundation pits. [0003] like figure 1 As shown, the construction process of the anchoring project mostly adopts the pressure dispersion anchor cable, and the several strands of the steel strand contained in the pressure dispersion anchor cable will be anchored in the anchor hole in units, that is, L1, L2 and L3, and each load unit The lengths ...

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to solve the defects in the prior art that multiple times of compensation tensioning are required and the effect of compensation tensioning is difficult to achieve, and heavy tensioning tools are required

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