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Drilled pile construction method

A construction method and technology of bored piles, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as troublesome, long construction period of bored piles, etc., and achieve the effects of stable turning, shortened construction period, and convenient operation

Pending Publication Date: 2020-05-08
CHENGTONG KAISHENG ECOLOGICAL CONSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each time the reinforcement cage needs to be welded and spliced ​​several times at the hole, the construction period of the bored pile is longer, which is more troublesome and needs to be improved

Method used

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0044] Example.

[0045] A construction method for bored piles, comprising the steps of:

[0046] S1, construction preparation, leveling the construction site, doing survey and setting out, completing the positioning of bored piles, connecting water and electricity, creating good conditions for the drilling rig to enter the site, drilling rig, crane, vibrating hammer, protection Barrels, reinforcement cages and various related materials are ready in place.

[0047]S2, bury the casing, dig a pit with a depth of at least 0.5m at the hole position, the diameter of the pit is larger than the outer diameter of the casing, press the casing into the soil with a vibrating hammer, set the upper end of the casing higher than the ground, and fill it evenly with clay Fully tamp the pit on the outer wall of the casing.

[0048] S3, mud pool setting, dig mud poo...

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Abstract

The invention discloses a drilled pile construction method, and relates to the field of constructional engineering. The drilled pile construction method comprises the following steps of S1, performingconstruction preparation; S2, burying a protective cylinder; S3, arranging a mud pool; S4, performing drilling machine drilling, namely, drilling by using a drilling machine; S5, performing primary hole cleaning, namely, cleaning a hole after the hole is drilled to a designed depth; S6, placing a steel reinforcement cage, namely, after the steel reinforcement cage passes acceptance inspection andwhen pre-operation is performed, splicing the steel reinforcement cage according to a designed size by an operator; and when the steel reinforcement cage is required to be placed, lifting the splicedsteel reinforcement cage to the position above a hole opening, and placing vertically and slowly; S7, placing a guide pipe; S8, performing secondary hole cleaning, after the guide pipe is placed, performing secondary hole cleaning through the guide pipe; S9, pouring underwater concrete; and S10, pulling up the protective cylinder. The trouble in performing butt welding on the steel reinforcementcage at the hole opening when the steel reinforcement cage is placed is avoided, so that the operation of placing the steel reinforcement cage is more convenient; and the construction period of the drilled pile is also shortened.

Description

technical field [0001] The invention relates to the field of construction engineering, more specifically, it relates to a construction method of bored piles. Background technique [0002] Bored piles, also known as bored piles, refer to pile holes formed in the foundation soil by means of mechanical drilling, steel pipe extrusion, or manual excavation at the engineering site, and a steel cage is placed in it and concrete is poured. pile. [0003] For example, the Chinese patent with the patent No. CN104652427A discloses a construction method for bored piles, including 1) selecting the type of drilling rig for the construction of bored piles according to the distribution of foundation lithology; 2) leveling the site, removing debris, replacing In addition to soft soil, ramming and compacting, and burying the casing, the construction access road should keep a certain distance from the drilling position; 3) According to the coordinate value of the central axis of the bored pil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/38
CPCE02D5/38
Inventor 蒋黎申戎久杰吴军杰宣丽丽
Owner CHENGTONG KAISHENG ECOLOGICAL CONSTR CO LTD
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