A kind of carrier pile construction technology

A construction technology and carrier pile technology, applied in sheet pile wall, foundation structure engineering, construction, etc., can solve the problems such as uneven stress of anchors in pile holes, affecting the bearing capacity of carrier piles, and not having simultaneous compression. , to achieve the effect of reducing manual labor, reducing the cost of foundation treatment, and ensuring the structural strength of the bottom end

Active Publication Date: 2020-12-15
湖北海内无双建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned existing technical solutions still have the following defects: the anchor piece is composed of two parts welded, the vertical anchor rod and the bottom anchor plate, and the anchor piece is rammed with a heavy hammer to make it sink into the pile hole. During the construction process, it is easy to cause The vertical anchor rod and the bottom anchor plate are detached in the pile hole by gravity. After the construction is completed, the anchors that are separated from each other are prone to uneven force or even failure in the pile hole, which affects the overall bearing capacity of the carrier pile and causes waste of resources. The construction process does not have the characteristics of simultaneous compression resistance

Method used

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  • A kind of carrier pile construction technology
  • A kind of carrier pile construction technology
  • A kind of carrier pile construction technology

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Embodiment 1 Disclosed in the present invention is the construction process of the pull-out steel bar, the carrier pile, the hollow column hammer for construction and the carrier pile.

[0055] Pull-out steel bars, see figure 1 , located inside the carrier pile and hammered into the pile hole, the tensile reinforcement includes a plurality of tensile longitudinal reinforcement 1 fixed in a bundle, and the tensile longitudinal reinforcement 1 is made of HRB400 rebar, refer to figure 2 , the tensile longitudinal bars 1 in the present embodiment are preferably three, and the three tensile longitudinal bars 1 are arranged at an angle of 120 degrees to each other, and the three tensile longitudinal bars 1 are connected by double-sided welding of the middle welding reinforcement bar 3 , the bottom ends of the tensile longitudinal reinforcement 1 are all set in a curved shape of 85-95 degrees. refer to figure 1 In this embodiment, it is preferred to bend at 90 degrees. The ...

Embodiment 2

[0081] The difference between embodiment two and embodiment one is:

[0082] refer to Figure 9 , the concrete pile body 4 includes a prefabricated pile 9 and a cement mortar grouting body 10, the prefabricated pile 9 is prefabricated by concrete and a plurality of steel cages 8, the prefabricated pile 9 is a round tubular pile or a square tubular pile, and the prefabricated pile 9 A pipe pile hole 11 for accommodating the tensile longitudinal reinforcement 1 is formed in the center, and cement mortar is poured around the tensile longitudinal reinforcement 1 in the pipe pile hole 11 to form a cement mortar grouting body 10, and the pile end of the concrete pile body 4 is provided with a bearing The platform 15 and the raft 16 , and the ends of the multiple tensile longitudinal reinforcements 1 in the concrete pile body 4 away from the bending section all extend upward into the cap 15 .

Embodiment 3

[0083] The difference between embodiment three and embodiment two is:

[0084] refer to Figure 10 , the ends of the plurality of tensile longitudinal reinforcements 1 in the concrete pile body 4 away from the bending section do not enter into the cap 15 and the raft 16 .

[0085] The carrier pile construction process of embodiment two and embodiment three is the same, specifically: steps S1-S6 and step S9 of the above two embodiments are the same as steps S1-S6 and step S9 of embodiment one, refer to Figure 11 , the difference from Example 1 is:

[0086] S7: Install prefabricated piles 9, prefabricate multiple steel cages 8 and concrete to form prefabricated piles 9, hoist the prefabricated piles 9 through the hoist and put them into the steel sleeve, and penetrate the tensile longitudinal bars 1 into the prefabricated piles 9 In the pipe pile hole 11, measure the elevation of the prefabricated pile 9 and adjust the prefabricated pile 9 within the allowable error range, co...

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Abstract

The invention relates to a pullout-resistant steel bar, a carrier pile, a hollow column hammer for construction and a construction process of a carrier pile, and relates to the technical field of carrier piles, including a tensile longitudinal reinforcement composed of a plurality of tensile longitudinal reinforcements with curved bottom ends; the carrier Pile, including concrete pile body, affected soil, compacted soil, filling material fixedly connected with the bottom of the uplift steel bar; hollow column hammer for construction, including steel cylinder and enlarged plate with through-holes opened together, carrier Pile construction technology, including the following steps: S1: measuring the setting-out of the hole; S2: sinking and placing the steel sleeve; S3: packing and tamping; S4: measuring the three-strike penetration; S5: lowering the tensile longitudinal reinforcement; S6: hollow Pillar hammer tamping packing; S7: installing reinforcement cage; S8: pouring concrete S9: pulling out sleeve. The invention makes the concrete pile body and the composite carrier tightly connected to form a whole, so that the carrier pile has the functions of anti-compression and pull-out resistance, solves the problem that the pile body and the carrier are easily separated, reduces the cost of foundation treatment, and is environmentally friendly and energy-saving.

Description

technical field [0001] The invention relates to the technical field of carrier piles, in particular to a pullout-resistant steel bar, a carrier pile, a hollow column hammer for construction and a construction process for a carrier pile. Background technique [0002] The carrier pile is a kind of pile different from the ordinary sense. The carrier pile is mainly composed of two parts: the upper pile body and the lower "composite carrier". The pile body is generally a cast-in-place concrete structure or a high-strength prestressed prefabricated pile. The composite body located at the bottom of the pile body and compacted by deep filler uses the free fall movement of the weight to repeatedly compact and compact the deep soil at the pile tip, so that the soil within a certain range below the pile tip can be most effectively reinforced Compacting to form a "composite carrier" is the technical core of this type of pile, which can diffuse and reduce the stress on the pile tip layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/22E02D5/30E02D5/38E02D7/00
CPCE02D5/385E02D5/22E02D5/30E02D5/34E04C5/01E02D7/02
Inventor 邵良荣张聪辰
Owner 湖北海内无双建设工程有限公司
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