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Excavation piling and filling method

A technology for digging hole piles and pile holes, which is applied to sheet pile walls, buildings, and foundation structure engineering, etc. It can solve the problems of inability to ensure the compactness of pile heads, waste concrete, increase labor costs, etc., and reduce the process of removing pile heads , saving concrete and ensuring compactness

Inactive Publication Date: 2018-12-28
CHINA 19TH METALLURGICAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, overfilling concrete will cause the following problems: ①The amount of concrete exceeds the design value, and the concrete is wasted; ②The overfilling part needs to break the pile head, damage the steel bar, and increase labor costs; Ensure the compactness of the pile head

Method used

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  • Excavation piling and filling method
  • Excavation piling and filling method

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and embodiment the present invention is described further as follows:

[0020] The pouring method for digging piles comprises the following steps:

[0021] Step 1, making a steel mold: the steel mold includes a base 1 and a columnar steel mold body 2 in the same shape as the pile hole; along the axial direction of the steel mold body 2, one end of the steel mold body 2 is the bottom end, and the other end is the top end The base 1 is fixedly connected to the bottom end of the steel mold body 2; along the steel mold body 2 axially, a through hole 3 passing through the base 1 and the steel mold body 2 is provided, and the steel mold body 2 is provided with a through hole 3 The hole 3 runs through to the slurry discharge hole 21 on the outside of the steel mold body 2;

[0022] Step 2. Install the steel mold at the design elevation of the pile top;

[0023] Step 3. Pour concrete into the pile hole from the steel mold. When p...

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Abstract

The invention relates to the field of pile foundation construction, and aims to avoid the over-irrigation and guarantee the quality of the pile head. The method comprises the following steps: Step 1,making a steel mold; Step 2, installing the steel mold at the designing top of the pile; Step 3, pouring the concrete into the pile hole through the steel mold, after the concrete reaches the pile top, while observing the state of the flowing concrete until the concrete flowing out from the drainage hole is dense concrete, then the pouring can be stopped; Step 4, vibrating the concrete from the top of the pile with a vibrating rod to make it denser; Step 5, removing the steel mold. According to the invention, the steel mold is installed at the designing top of the pile, and the upper floatingslurry flows out from the drainage hole when the height of the pouring concrete is reaching the height of drainage hole. Finally, the concrete is vibrated and compacted by means of vibrating, which avoids over-irrigation and saves the concrete and the working procedure of breaking the pile head. At the same time, the compactness of the pile head is ensured by vibrating.

Description

technical field [0001] The invention belongs to the field of pile foundation construction, in particular to a pouring method for hole-digging piles. Background technique [0002] The construction process of the hole-digging pile is to drill a hole in the ground, put a steel cage in the hole, then extend the bottom end of the conduit into the bottom of the hole, and pour concrete into the hole from the top of the conduit. According to the construction specification, the silt at the bottom of the hole should be thoroughly removed after drilling, but it is difficult to completely remove the silt during the actual construction process. During the construction of the back cover, the first batch of concrete rushes out of the bottom of the conduit to flow and spread around the bottom of the hole, and is mixed with the flushing fluid in the hole to form a laitance dilution layer of a certain thickness, which forms a laitance on the top of the pile. [0003] At present, superfilling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/34E02D15/04
CPCE02D5/34E02D15/04
Inventor 夏孝军孙兴华李兴权李吉
Owner CHINA 19TH METALLURGICAL CORP
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