Mixed grooved inserted combined prefabricated special-shaped section composite foundation structure and construction method

A composite foundation, plug-in technology, applied in basic structure engineering, construction, sheet pile walls, etc., can solve problems such as low bearing capacity, reduce post-construction settlement, save overall cost and construction time, and simplify construction. Effect

Pending Publication Date: 2019-06-18
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of this invention is to solve the problem that most of the current foundation forms have certain limitations when used in deep and soft soil areas, and the bearing capacity obtained per unit of concrete material is low, and proposes a mixed-groove-inserted combined prefabrication Special-shaped cross-section composite foundation structure

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  • Mixed grooved inserted combined prefabricated special-shaped section composite foundation structure and construction method
  • Mixed grooved inserted combined prefabricated special-shaped section composite foundation structure and construction method
  • Mixed grooved inserted combined prefabricated special-shaped section composite foundation structure and construction method

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and implementation steps the present invention is further described,

[0031] Such as figure 1 As shown, in this embodiment, a composite foundation structure of a mixed prefabricated special-shaped cross-section is inserted into a stirred trough, and its main structure includes several stirring piles 1 . The stirring pile 1 is formed by rotary spraying and stirring by a stirring machine such as a three-axis mixer, and each stirring pile 1 is in the shape of a round pile, and the stirring pile is vertically driven into the foundation. However, in this foundation structure, the mixing pile 1 is combined with the prefabricated slab 3 to form a composite foundation, so the verticality requirement for the mixing pile does not need to be too high. However, all mixing piles 1 need to be arranged in an H-shape on the ground plane, and the adjacent mixing piles are interlocked with each other, so the pile bodies of the mixing piles...

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Abstract

The invention discloses a mixed grooved inserted combined prefabricated special-shaped section composite foundation structure and a construction method, and belongs to the field of foundations. The structure includes a plurality of mixing piles, and each mixing pile is embedded into the foundation in a circular pile shape; all mixing piles are arranged on a ground plane in an H shape, every adjacent mixing piles are mutually interlocked and connected, and a continuous wall type H-shaped mixing tank is formed; a prefabricated plate is inserted vertically in each mixing pile, and the prefabricated plates in all mixing piles are continuously spliced in the direction of the H-shaped mixing tank; and in each mixing pile, the position between the two sides of the prefabricated plates and foundation soil at the edges of the mixing piles is filled with cement soil as a transition layer. According to the mixed grooved inserted combined prefabricated special-shaped section composite foundation structure and the construction method, the principle is simple and reliable, construction operation is easy and convenient, applicable working conditions are wide, and the influence by site construction conditions is small; and according to a composite foundation, compared with conventional foundations, under the condition of using concrete mortar with the same volume, the bearing capacity is greatly improved, and the good application prospects are achieved.

Description

technical field [0001] The invention belongs to the field of ground foundations, and in particular relates to a composite foundation of a mixed prefabricated special-shaped cross-section inserted into a groove. Background technique [0002] As an important link in engineering construction, foundation construction has a decisive impact on the quality and economic benefits of the entire project. Prefabricated concrete circular tubular piles are widely used in the foundation engineering of buildings and structures due to the advantages of high concrete strength, good hammer resistance, short construction period, small impact on the environment, and low cost per unit bearing capacity. [0003] However, when dealing with deep soft soil foundations, due to the low strength of the soil around the pile, the circular tubular pile has the disadvantages of low pile side friction and low single pile bearing capacity. In order to improve this problem, researchers have carried out resear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/46E02D5/20
Inventor 王奎华刘鑫涂园
Owner ZHEJIANG UNIV
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