Construction method for punching cast-in-place pile
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A construction method and cast-in-place pile technology, which is applied to sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as the inability to guarantee the quality of piles, and achieve the effects of reducing the amount of throwing and filling works, ensuring the quality of piles, and shortening the construction period
Pending Publication Date: 2021-11-05
广东二十冶建设有限公司 +1
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[0003] In view of this, the present invention proposes a construction method for perforated cast-in-place piles, aiming at solving the problem that existing karst cave treatment methods cannot guarantee the quality of piles in the construction of perforated cast-in-situ piles
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[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0025] see figure 1 , figure 1 It is a flow chart of the construction method of perforated cast-in-place pile provided by the embodiment of the present inve...
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Abstract
The invention provides a construction method for a punching cast-in-place pile. The construction method comprises the following steps of a measuring step, specifically, leveling a to-be-constructed site, measuring and setting out, and determining the position of a pile hole; a drilling step, specifically, burying a steel casing at the position of the pile hole, and drilling; a treatment step, specifically, after drilling to penetrate through the top of a karst cave, treating the karst cave according to the parameters of the karst cave, drilling to penetrate through the treated karst cave, and continuously drilling to the pile bottom position of the pile hole; a hoisting step, specifically, cleaning the pile hole, and hoisting a reinforcement cage into the pile hole; and a pouring step, specifically, cleaning the pile hole again, and pouring underwater concrete into the pile hole. According to the construction method, when the karst caves are encountered in the construction process of the punching and filling pile, the karst caves are treated according to the parameters of the karst caves, drilling is conducted after the karst caves are treated, the reinforcement cage is hung in the pile hole, and underwater concrete is poured, so that the pile forming quality can be guaranteed, the over-filling amount of the concrete can be reduced, the throwing and filling project amount is reduced, the project cost is saved, and the method is wide in applicability and high in pertinence.
Description
technical field [0001] The invention relates to the technical field of cast-in-situ pile construction, in particular to a construction method for perforated cast-in-situ piles. Background technique [0002] Karst caves are dominated by the dissolution of karst water, and there are passages extending in the basic horizontal direction caused by submerged erosion and mechanical collapse. Because karst caves generally exist underground and are hidden objects, they cannot be recognized intuitively. Although geological exploration techniques can be used to study them, karst caves inevitably bring many troubles during the construction of perforated piles. The traditional method of throwing and filling karst caves not only cannot guarantee the quality of piles, but also greatly increases the overfilling of concrete. Contents of the invention [0003] In view of this, the present invention proposes a construction method for perforated cast-in-situ piles, aiming at solving the prob...
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