Construction method for existing basement pile foundation with high water level

A basement, high water level technology, applied in the direction of foundation structure engineering, sheet pile walls, building maintenance, etc., can solve the problems of the damage of the built structure, the difficulty of controlling the verticality of the pile, and the narrow construction space, so as to reduce energy consumption and protect Groundwater resources and the effect of improving treatment efficiency

Inactive Publication Date: 2020-05-15
CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0003] At present, there are not many mature construction methods for the demolition and modification of existing basement structures in the industry, especially in areas where the groundwater level is high, and it is necessary to add piles to existing basement structures whose design bearing capacity of the original pile foundation cannot meet the needs of the new structure after demolition and modification. Construction, the biggest construction difficulty is controlling the groundwater level, and there are still difficulties such as narrow construction space, difficulty in controlling the verticality of pile formation, and easy damage to the built structure.

Method used

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  • Construction method for existing basement pile foundation with high water level
  • Construction method for existing basement pile foundation with high water level
  • Construction method for existing basement pile foundation with high water level

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Embodiment 1

[0034] The first aspect of the present invention discloses a pile foundation construction method for an existing basement with a high water level, which includes the following steps in sequence: pre-construction preparation step, floor reinforcement step, hole opening step, sleeve placement step, pile forming construction step and recovery sleeve cylinder step.

[0035] Specifically, the plan is as follows:

[0036] 1. Construction preparation

[0037] 1. Pile position review

[0038] After receiving the design unit's supplementary pile positioning drawing, organize relevant technical personnel to review the pile positioning drawing and the original structural drawing to check whether there are main force-bearing components such as the main beam, column, wall, etc. of the pile foundation positioning and the original structure In case of a collision. In view of this situation, communicate with the design, and fine-tune the pile positioning within the allowable range, reduce ...

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Abstract

The invention belongs to the field of basement structure demolition and renovation, and particularly relates to a construction method for a basement pile foundation with high water level. The construction method sequentially comprises the following steps of pre-construction preparation, floor reinforcement, hole opening, sleeve placement, pile forming construction and sleeve recovery. The method has at least the following advantages that a water drill is adopted to opening holes for floor opening, so that the noise pollution and the dust pollution are reduced; a sleeve is used for drainage, sothat the pollution generated by mud to an existing basement structure in the traditional pile repairing construction is avoided; mud generated by the pile repairing construction is treated through amud-water separation system and then transported out of a factory, so that the treatment efficiency is improved, and the pollution to the environment is reduced; generated construction waste is smalland is treated in a centralized clearing and transportation mode, so that the cleanliness of a construction site is guaranteed; and continuous precipitation is avoided, underground water resources areprotected, and the influence on the surrounding environment is reduced at the same time.

Description

technical field [0001] The invention belongs to the field of dismantling and modifying basement structures, and in particular relates to a construction method for pile foundations in existing basements with high water levels. Background technique [0002] With the diversified development of the construction market, there are more and more projects for functional transformation of original buildings, and the accompanying structural demolition and modification work has become a construction difficulty in the process of functional transformation of original buildings. [0003] At present, there are not many mature construction methods for the demolition and modification of existing basement structures in the industry, especially in areas where the groundwater level is high, and it is necessary to add piles to existing basement structures whose design bearing capacity of the original pile foundation cannot meet the needs of the new structure after demolition and modification. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E02D27/48E02D7/18E02D5/38
CPCE02D5/385E02D7/18E02D27/48E02D2250/0023E04G23/024E04G23/0266
Inventor 周圣平刘石福黄研汪刚赵昊余爱敏李志朱晓伟朱琼侯子文
Owner CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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