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Construction method of coordination device for guaranteeing pile-soil co-action

A technology of interaction and construction method, applied in the direction of foundation structure engineering, construction, etc., can solve the problems of pile-soil interaction, large difference in mechanical properties, inaccurate calculation, etc., and achieve reliable pile-soil interaction, The effect of high reliability and easy calculation

Inactive Publication Date: 2017-04-26
SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large difference in the mechanical properties of various materials, inaccurate calculations, and construction difficulties, most of them cannot achieve the purpose of pile-soil interaction.

Method used

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  • Construction method of coordination device for guaranteeing pile-soil co-action
  • Construction method of coordination device for guaranteeing pile-soil co-action
  • Construction method of coordination device for guaranteeing pile-soil co-action

Examples

Experimental program
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Effect test

Embodiment

[0019] Example: such as figure 1 As shown, this embodiment specifically relates to a construction method for coordinating devices for ensuring pile-soil interaction, and the method includes the following steps:

[0020] 1) if figure 1 , 3 As shown, the engineering pile 1 is constructed in the foundation soil; the top of the engineering pile 1 is provided with a connecting steel bar 8 extending upwards, and the connecting steel bar 8 is used to connect the foundation floor 3 of the subsequent construction; after the construction of the engineering pile 1 is completed, it is necessary to The pile head of each engineering pile 1 is leveled to ensure that each engineering pile 1 is evenly stressed.

[0021] 2) if figure 1 , 2 , 4, a pressure-bearing steel box 2 is installed on the top of the engineering pile 1; the pressure-bearing steel box 2 includes a cylindrical side wall 5, an upper sealing plate 6 and a lower sealing plate 7; the upper sealing plate 6 and the lower seali...

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PUM

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Abstract

The invention discloses a construction method of a coordination device for guaranteeing pile-soil co-action. The construction method comprises the following steps: sequentially constructing an engineering pile and a pressure-bearing steel box located above the engineering pile from bottom to top in foundation soil, and installing a reserved grouting pipe at the top of the pressure-bearing steel box; and constructing a foundation slab and an upper structure above the pressure-bearing steel box, enabling the pressure-bearing steel box to generate compressive deformation with the foundation soil due to a vertical load generated by the foundation slab and the upper structure, and grouting in the pressure-bearing steel box through the reserved grouting pipe when the foundation soil is compressed to a limit value, thus realizing the pile-soil co-action. The construction method disclosed by the invention has the advantages of being simple in structure, simple and convenient to construct, convenient to calculate, high in reliability, and capable of reliably realizing the pile-soil co-action.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a construction method of a coordinating device for ensuring the interaction between piles and soil. Background technique [0002] Pile foundation is a traditional form of foundation. At present, the more common design method is that all the upper loads are borne by engineering piles, without considering the bearing effect of the foundation soil under the foundation. In recent years, with the continuous accumulation of engineering experience, the bearing capacity of foundation soil has been gradually paid attention to. How to make full use of the bearing capacity of foundation soil to reduce the number of engineering piles and save engineering cost is a new topic explored by the engineering field. [0003] In order to ensure the pile-soil interaction and realize the pile-soil interaction, there are many methods for realizing the pile-soil interaction currently prop...

Claims

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Application Information

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IPC IPC(8): E02D27/12
CPCE02D27/12
Inventor 尹骥魏建华俞海洲
Owner SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST