A kind of auxiliary device for the construction of back-pressure concrete retaining wall of pile foundation and construction method thereof
A technology of concrete retaining walls and auxiliary devices, which is applied in the direction of foundation structure engineering, sheet pile walls, buildings, etc., can solve the key issues affecting pile foundation hole formation and quality assurance, restrict pile foundation construction efficiency and cost control, and back pressure concrete pouring Large volume and other problems, to eliminate the risk of hole collapse, reduce construction costs, and economical device costs
Active Publication Date: 2022-07-05
CCCC SECOND HARBOR ENG
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Problems solved by technology
During the drilling construction process of concrete pile foundations, there are many possible situations that may lead to hole collapse due to factors such as groundwater, broken and weathered rock mass, underground silt, and unclear soft soil interlayers. The key to foundation hole formation and quality assurance also directly restricts the construction efficiency and cost control of pile foundations
Aiming at the hole collapse problem in the pile foundation construction process, the back pressure concrete structure is currently used to make the pile hole retaining wall to prevent the hole from collapsing. The increase in construction cost is not environmentally friendly; and the height of the back pressure retaining wall is small, and the construction limitations are large
Method used
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[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] like figure 1 The auxiliary device for the construction of the pile foundation back-pressure concrete retaining wall shown in 6 includes a steel casing 1 and a conical cap 2 fixed on the top of the steel casing 1. The steel casing 1 is surrounded by two semi-circular arc steel plates, which are respectively The first semi-circular arc-shaped steel plate 1.1 and the second semi-circular arc-shaped steel plate 1.2; the two side end faces of the first semi-circular arc-shaped steel plate 1.1 are respectively fixedly connected with first connecting parts, and the first connecting parts include fixedly connected to the first semi-circular arc-shaped steel plate. 1.1 The first flat plate 9 on the end faces on both sides and the first L-shaped plate 10 fixed on the first flat plate 9 and facing the inner side of the steel casing 1, the ...
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The invention discloses an auxiliary device for the construction of a back-pressure concrete retaining wall for a pile foundation, which comprises a steel protective tube and a conical cap fixed on the top of the steel protective tube. The arc-shaped steel plate and the second semi-circular arc-shaped steel plate; the two end faces of the first semi-circular arc-shaped steel plate are respectively fixedly connected with a first connecting portion, and the two side end surfaces of the second semi-circular arc-shaped steel plate are respectively fixedly connected with a second connecting portion. A first bolt hole is opened on a connecting part, a second bolt hole is opened on the second connecting part, and a bolt is connected between the first bolt hole and the second bolt hole. The invention has the advantages of safety, reliability, economy, convenience and wide application range, and has good practicability and market application value.
Description
technical field [0001] The invention relates to the technical field of pile foundation construction, in particular to an auxiliary device for the construction of a pile foundation back-pressure concrete retaining wall and a construction method thereof. Background technique [0002] Concrete piles are widely used in various foundation projects due to their reliable quality, mature construction technology, strong stratum adaptability and good bearing capacity. During the drilling construction of the concrete pile foundation, there are many possible situations that can lead to the occurrence of hole collapse due to factors such as groundwater, rock mass breakage and weathering, underground silt and unclear soft soil interlayer. The key to foundation hole formation and quality assurance also directly restricts the construction efficiency and cost control of pile foundations. In view of the problem of hole collapse during the construction of the pile foundation, the structure of...
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IPC IPC(8): E02D5/68E02D5/38
CPCE02D5/385E02D5/68
Inventor 胡义新周舒刘宁波李送根吴启高俊徐庭卢佩李志成张成林赵磊陈丹王路杨清印
Owner CCCC SECOND HARBOR ENG