Ship anchor type anchor head of ground anchor stretching when grouting

Abstract

This invention includes: thin wall steel tube, fluke top seat, piston propeller, bar and fluke in which the fluke top seat is fixedly connected with the thin wall steel tube, both ends of the bar are connected to its base seat of the piston probeller and fluke separately by flexible pins, the anchor head is linked to the fluke top seat by pins and middle of the fluke is linked with the bar, and connection holes connect the anchor chain at the back of the anchor head. Using the character of large fixed area and powerful force of fluke, this invention provides pulling resistance like anchor, in operation the back of anchor head is connected with the chain then put in anchor eyes to grout with high pressure from thin-wall steel tube to force the fluke open into the anchor eye wall to provide anchor force.

Description

technical field [0001] The invention relates to an anchor head of a soil anchor, in particular to a ship anchor type grouting expansion type soil anchor head, which belongs to the field of soil anchoring. Background technique [0002] Rock-soil anchoring technology can fully tap the energy of rock and soil itself, use its own strength and self-supporting capacity, ensure construction safety and structural stability, save engineering materials, and thus achieve significant economic benefits. The anchoring method in the natural soil layer is mainly drilling and grouting, which is generally called grouting anchor, and there are other forms such as soil nailing and wall anchoring. The anchor rod in the grouted soil layer is composed of an anchor rod (anchor cable), a free section, an anchor section, an anchor head, and a cushion block. The anchor section and the anchor head are the providers of the pull-out force, and their performance is related to the effect of the anchor rod...

AI Technical Summary

Problems solved by technology

However, these methods and the anchoring end structures formed have their disadvantages: special reaming equipment or materials are required, the construction process is complex, large-volume reaming is very difficult, and the supply of anchoring force is limited.

However, the depth of the ribs embedded in the soil is limited, and the pullout force provided is difficult to improve greatly (especially in softer soil layers). Moreover, this method needs to be advanced with a repetitive jack and applies a reverse pull force, which also brings disadvantages to construction applications. to limit

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