Anchor tensioning device for integrated pipe pile

Abstract

The invention belongs to the technical field of pile foundations, and provides an anchor tensioning device for an integrated pipe pile. The device comprises a set of precast concrete members and pilesA, wherein the precast concrete members form a pile body, and each precast concrete member comprises a pile batten plate, an anti-slip constraint ring and an end pressing seat, the pile batten platesare vertically and annularly arranged on the periphery of the annular pipe pile, the end pressing seats are located at the bottom end of the integrated pipe pile and bears end resistance, the pile batten plates are restrained and fixed in the vertical direction and the radial direction, the anti-sliding restraining rings are horizontally arranged at the up-down splicing positions of the pile batten plates and restrain vertical and radial displacement of the pile batten plates, the anchor tensioning device tensions and integrates all concrete members into the pile body, and the piles A are arranged on the peripheries of the pile batten plates and the inner side of pile hole wall soil body and used for transmitting positive pressure and frictional resistance of the pile hole wall soil body.The device has the advantages of cost reduction, convenient construction, energy saving, environmental protection, quality improvement, reduction of on-site manual operation, and has substantial economic and social benefits.

Description

technical field

[0001] The invention relates to pile foundation technology, in particular to an anchor tensioner for an integrated pipe pile and a construction method for the pipe pile. Background technique

[0002] Large-diameter piles in civil engineering are widely used in the foundations of buildings, bridges, ports and large structures. So far, the construction methods are mostly after drilling holes on site, then inserting steel cages into the pile holes, and pouring concrete on site. This method, under some extreme conditions, is difficult to construct, and the quality of concrete pouring is difficult to guarantee, and the construction speed is also slow. Especially in some karst cave areas, the concrete is easily lost into the soil (rock) cave before it solidifies, causing quality accident. However, for some large-diameter uplift piles, a large number of steel bars need to be configured, and the project cost is high. On the other hand, the core concrete of the larg...

Examples

Embodiment 1

[0056] The first step: At the predetermined position, use mechanical equipment to form holes in the soil of the site to form pile holes;

[0057] Step 2: Assemble the end pressure seat, pile slab and anti-slip restraint ring to form the first section (lowest section) of the annular pile body, and put it into the pile hole;

[0058] Step 3: Adjust the vertical position of the first ring-shaped pile body, and then assemble the pile slab and anti-slip restraint ring to form the second ring-shaped pile body;

[0059] Step 4: Adjust the vertical position of the assembled ring-shaped pile body, and then assemble the pile slab and anti-slip restraint ring to form the third section of ring-shaped pile body, repeating successively until the top elevation of the complete pile body is located on the natural ground When the above position is suitable, install the anchor tensioner, stretch and lock each prefabricated component of the pipe pile to form a whole, and then place the complete r...

technical field

[0001] The invention relates to pile foundation technology, in particular to an anchor tensioner for an integrated pipe pile and a construction method for the pipe pile. Background technique

[0002] Large-diameter piles in civil engineering are widely used in the foundations of buildings, bridges, ports and large structures. So far, the construction methods are mostly after drilling holes on site, then inserting steel cages into the pile holes, and pouring concrete on site. This method, under some extreme conditions, is difficult to construct, and the quality of concrete pouring is difficult to guarantee, and the construction speed is also slow. Especially in some karst cave areas, the concrete is easily lost into the soil (rock) cave before it solidifies, causing quality accident. However, for some large-diameter uplift piles, a large number of steel bars need to be configured, and the project cost is high. On the other hand, the core concrete of the larg...

Examples

Embodiment 1

[0056] The first step: At the predetermined position, use mechanical equipment to form holes in the soil of the site to form pile holes;

[0057] Step 2: Assemble the end pressure seat, pile slab and anti-slip restraint ring to form the first section (lowest section) of the annular pile body, and put it into the pile hole;

[0058] Step 3: Adjust the vertical position of the first ring-shaped pile body, and then assemble the pile slab and anti-slip restraint ring to form the second ring-shaped pile body;

[0059] Step 4: Adjust the vertical position of the assembled ring-shaped pile body, and then assemble the pile slab and anti-slip restraint ring to form the third section of ring-shaped pile body, repeating successively until the top elevation of the complete pile body is located on the natural ground When the above position is suitable, install the anchor tensioner, stretch and lock each prefabricated component of the pipe pile to form a whole, and then place the complete r...

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