A construction technology for deep foundation pit support

A technology of deep foundation pit support and construction technology, which is applied in infrastructure engineering, construction, excavation, etc., and can solve the difficult construction operations of construction personnel and excavating equipment, the space occupation of deep foundation pits, and the horizontal steel support that easily hinders construction personnel's operation To avoid the reduction of support strength, reduce the deposition of rainwater, and avoid soil erosion or subsidence

Active Publication Date: 2021-08-31
SHENZHEN DONGSHEN ENG CO LTD
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AI Technical Summary

Problems solved by technology

However, the horizontal steel support is horizontal in the middle of the deep foundation pit, so that the space in the deep foundation pit is occupied, so that the horizontal steel support easily hinders the construction personnel's operation, making it difficult for construction personnel and excavating equipment to carry out construction operations in the foundation pit.
[0005] The above existing technical solutions have the following defects: both the horizontal steel support method and the conventional double-row pile method are difficult to maintain the verticality of the side wall of the deep foundation pit while reducing the space occupied in the deep foundation pit

Method used

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  • A construction technology for deep foundation pit support
  • A construction technology for deep foundation pit support

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0036] refer to figure 1 , is a deep foundation pit support construction process disclosed by the present invention, comprising the following steps: Step S100: firstly, at the construction site, a groove is pre-dug along the edge of the deep foundation pit 1, and concrete is poured in the groove to form an enclosure 12. The top surface of the enclosure 12 is arc-shaped, and its convex arc faces to the outside of the deep foundation pit 1, so that when the rainwater contacts the enclosure 12, it will flow to the outside of the deep foundation pit 1 under the guidance of the arc top surface. , so as to prevent rainwater from pouring back into the deep foundation pit 1 and affect the construction, and at the same time fix the edge of the deep foundation pit 1 to prevent objects such as stones from falling and causing casualties.

[0037] Afterwards, the enclosu...

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Abstract

The invention relates to a deep foundation pit support construction technology, and relates to the technical field of engineering facility construction. A single row of piles is arranged on the inside of the deep foundation pit, and the single row of piles is evenly distributed along the extension direction of the side wall of the deep foundation pit; At a position of 5 meters, the bottom of the fixed pile is lower than the preset lowest point of the deep foundation pit; S300: A horizontal steel frame is installed between the fixed pile and the single row of piles, and the two ends of the horizontal steel frame are connected to the fixed pile and the single row of piles respectively. The pile connection, the length direction of the horizontal steel frame is perpendicular to the side wall of the deep foundation pit. The invention has the effect of improving the verticality of the side wall of the deep foundation pit under the condition of reducing the occupation of the space in the deep foundation pit.

Description

technical field [0001] The invention relates to the technical field of engineering facility construction, in particular to a deep foundation pit support construction technology. Background technique [0002] Deep foundation pit refers to a project where the excavation depth exceeds 5 meters, or the depth does not exceed 5 meters, but the geological conditions, surrounding environment and underground pipelines are particularly complicated. In order to ensure the safety of the underground construction and the surrounding environment of the foundation pit, it is usually necessary to establish a supporting structure on the side wall of the deep foundation pit and the surrounding environment. [0003] At present, the deep foundation pit support structure usually adopts a double-row pile support structure. The double-row pile support structure is generally arranged along the side wall of the foundation pit, and is composed of two rows of support piles and beams connected by the fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D5/22
CPCE02D5/22E02D17/04
Inventor 覃辉煌吴翠萍文建生傅朝成
Owner SHENZHEN DONGSHEN ENG CO LTD
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