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Inclined pile vertical anchor rod supporting structure for foundation pit supporting and construction method thereof

A technology of bolt support and foundation pit support, which is applied in the direction of foundation structure engineering, excavation, sheet pile walls, etc., can solve the problems of poor support effect, complicated process, cumbersome construction, etc., and achieve low cost and optimized support Good structure and support effect

Inactive Publication Date: 2014-01-01
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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Problems solved by technology

[0008] The object of the present invention is to provide a kind of inclined pile vertical bolt support structure and its construction method for foundation pit support which are easy to operate, simple in process, low in cost and have good support effect. The support system in the foundation pit of the existing building with limited underground space has poor support effect, cumbersome construction, complicated process and high cost technical problems

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  • Inclined pile vertical anchor rod supporting structure for foundation pit supporting and construction method thereof
  • Inclined pile vertical anchor rod supporting structure for foundation pit supporting and construction method thereof
  • Inclined pile vertical anchor rod supporting structure for foundation pit supporting and construction method thereof

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Embodiment Construction

[0028] Examples see Figure 1-4 As shown, this inclined pile vertical anchor (inclined pile vertical anchor, IPVA for short) support structure used for foundation pit support includes inclined slope protection pile 1, pile crown Beam 2 and Anchor. The inclined slope protection piles 1 are arranged in a row at the edge of the foundation pit, and the bottom of the inclined slope protection piles 1 extends into the lower soil layer 10 of the base, and the specific length is determined by the design according to the soil layer conditions at the positions. The slope protection pile 1 can be a rectangular slope protection pile, a circular slope protection pile or other special-shaped slope protection piles.

[0029] Described anchor rod comprises vertically prestressed anchor rod 3, and vertical prestressed anchor rod 3 is arranged in the stable soil layer 8 between adjacent two oblique revetment piles 1, and vertical prestressed anchor rod 3 is formed by corresponding The ground ...

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Abstract

The invention provides an inclined pile vertical anchor rod supporting structure for foundation pit supporting and a construction method thereof. The supporting structure comprises inclined slope protection piles, pile top beams and anchor rods. A row of the inclined slope protection piles are arranged on the edges of a foundation pit, and the bottoms of the inclined slope protection piles extend into the lower soil layer of the bottom of the foundation pit. The supporting structure is characterized in that the anchor rods comprise vertical pre-stress anchor rod bodies arranged in the stable soil layer between every two adjacent inclined slope protection piles and inserted and anchored in the stable soil layer from the ground between every two adjacent inclined slope protection piles, and the pile top beams are in rigid connection with the tops of the inclined slope protection piles and in flexible connection with the upper portions of the vertical pre-stress anchor rod bodies. The supporting structure and the construction method are particularly applied to the adjacent existing building foundation pits with limited underground space, and have the outstanding advantages of supporting the adjacent existing building deep foundation pits, and being good in supporting effect, convenient to construct, simple in working procedure and low in cost.

Description

technical field [0001] The invention relates to a building foundation pit support system and a construction method thereof. Background technique [0002] In the design and construction of building foundation pit support, there are common support types such as (composite) soil nail support, pile (wall) anchor support, pile (wall) support support, and two or more support types. At present, the foundation pit support of most engineering projects adopts the above support type. [0003] In recent years, with the acceleration of urban construction, the number of buildings in the urban area has increased sharply, and the building density has become higher and higher. Many buildings are being built next to and very close to existing buildings, so making full use of the land At the same time, many problems have been raised: [0004] (1) Since the newly-started building foundation pit is close to the existing building, it is difficult to choose the slope support method for the new ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D5/74
Inventor 宋福渊马庆松郭恒胡贺祥油新华耿冬青秦会来
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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