A kind of anti-floating anchor construction method

Abstract

The invention relates to the technical field of building construction, in particular to an anti-floating anchor rod construction method. A modified vibration immersed pipe extruding gravel pile machine is adopted as an anchor rod machine. A valve-type pile tip sleeves the end portion of a sleeve pipe. The sleeve pipe is sunk into soil through vibration. Underground water and a silt layer are effectively isolated at the outer side of a pipe wall in the hole forming process, so that the influence of hole collapse and the underground water is avoided; then a lifting hook is used for lifting an anchor rod reinforcing steel bar into the sleeve pipe, grouting material filling is carried out, while vibration is carried out at the same time for pipe pulling, grouting materials are vibrated and compacted through vibration during pipe pulling, grouting material filling is carried out for a plurality of times, the grouting materials are filled by means of pressurizing grouting, and the hole forming quality of an anchor rod and the mortar strength are guaranteed; and afterwards, secondary pressurizing grouting is carried out through a grouting pipe arranged on the anchor rod. The anti-floatinganchor rod construction method has the unique advantages that the cost is reduced, the construction period is shortened, materials are saved, the quality is improved, the construction is safe and civilized, environmental protection and sanitation are ensured. Meanwhile, good social benefits are brought.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an anti-floating anchor construction method. Background technique [0002] Anti-floating anchor rod is a kind of anti-floating measures for underground structures in construction projects. The anti-floating anchor refers to the structural member set up to resist the upward displacement of the building on it. It is related to the level and change of the groundwater level, and is opposite to the direction of the compressive force. At present, the anti-floating anchor construction in China is mainly carried out at the foundation bottom elevation. After the earthwork is excavated to the design elevation, the construction of the anti-floating anchor begins. The construction sequence is: first drill the hole, then hoist the main reinforcement of the anchor, The main reinforcement of the anchor rod extends into the foundation for an anchor length, and finally the foundati...

AI Technical Summary

Problems solved by technology

[0003] The construction quality of anti-floating anchors directly affects the safety of the building as a whole. The construction quality of anti-floating anchors has always been a problem in the construction industry. Traditional anti-floating anchor construction methods and construction machinery are used, and the construction speed is slow. , the economic benefit is low, and the construction quality is difficult to guarantee, especially when the groundwater is relatively abundant and the geological conditions are sediment layer geology. According to the traditional anchor bolt construction procedure, the construction personnel must pay special attention to avoiding hole collapse and reasonably control the mud coordination during the construction process. Ratio, bolt centering, hole depth and elevation and other quality issues

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