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A construction method for foundation pit support of solidified diagonal braced piles at the bottom of piles using static pressure implantation method

A construction method and technology of implantation method, which is applied in the direction of foundation structure engineering, excavation, sheet pile wall, etc., can solve the problems that cannot fully meet the needs of foundation pit support, long support construction period, unfavorable machine work, etc., to achieve shortening Construction period, good support, and cost-saving effects

Active Publication Date: 2022-07-05
广东中都建筑集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When excavating foundation pits under soft soil conditions, the use of a single pile row support form cannot fully meet the needs of foundation pit support, and it is often necessary to add horizontal internal supports in the foundation pit to improve the foundation pit support capacity
[0003] However, when the excavation area in the foundation pit is large and deep, the construction period of the horizontal internal support in the foundation pit is long and difficult, and it is not conducive to the subsequent work of the machine inside the foundation pit

Method used

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  • A construction method for foundation pit support of solidified diagonal braced piles at the bottom of piles using static pressure implantation method
  • A construction method for foundation pit support of solidified diagonal braced piles at the bottom of piles using static pressure implantation method
  • A construction method for foundation pit support of solidified diagonal braced piles at the bottom of piles using static pressure implantation method

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Embodiment Construction

[0039] Attached to the following Figure 1-4 This application will be described in further detail.

[0040] The embodiment of the present application discloses a method for supporting construction of a foundation pit of a solidified diagonal braced pile at the bottom of a pile using a static pressure implantation method. Include the following steps:

[0041] S1, carry out the construction of the supporting pile 1 to form the surrounding piles, the details are as follows:

[0042] S11. Measure the construction area on site and make wiring.

[0043] S12, the supporting pile 1 adopts the steel pipe supporting pile 1, and the static pressure pile planting machine is used to install and wire several supporting piles 1 in order and press them into the soil layer in turn, and make the bottom end of the supporting piles 1 lower than The design depth of the foundation pit is 2m, and the construction of the supporting pile 1 is completed.

[0044] S2. Carry out the construction of c...

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Abstract

The invention discloses a foundation pit support construction method of a pile bottom solidified diagonal bracing pile by adopting a static pressure implantation method. The supporting pile construction is firstly performed to form an enclosure row pile, and then the foundation pit is initially excavated to construct the diagonal bracing. Then use the guide device and hydraulic oil top to press the diagonal braced pile into the soil layer by sections, and make the bottom of the diagonal braced pile lower than the marked depth of the foundation pit, so that the foundation pit can be excavated to the design marked depth in the process of secondary excavation. , the side wall of the foundation pit is not easy to overturn, and at the same time, after the construction of the diagonal brace piles, the secondary excavation of the foundation pit can be carried out, which significantly shortens the construction period of the foundation pit project.

Description

technical field [0001] The invention relates to the technical field of foundation pit support, in particular to a construction method for foundation pit support of a pile bottom solidified diagonal bracing pile using a static pressure implantation method. Background technique [0002] The foundation pit support is to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit. When excavating foundation pits under soft soil conditions, a single row of piles cannot fully meet the needs of foundation pit support, and it is often necessary to add horizontal inner supports in the foundation pit to improve the foundation pit support capacity. [0003] However, when the excavation area in the foundation pit is large and deep, the construction period of the support in the construction level in the foundation pit is long and difficult, which is not conducive to the subsequent work of the machine in the foundation pit. Therefore,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D7/20
CPCE02D17/04E02D7/20
Inventor 李芝光
Owner 广东中都建筑集团有限公司
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