Construction process of non-grouted recyclable steel-pipe piles
A construction technology, steel pipe pile technology, applied in sheet pile walls, foundation structure engineering, excavation, etc., can solve problems such as waste of building materials, underground pollution, etc., achieve saving of steel and cement, large support depth, and improved construction efficiency Effect
Active Publication Date: 2014-04-02
TAIAN DAIZHONG ELECTROMECHANICAL TECH DEV CO LTD
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Problems solved by technology
[0002] With the acceleration of urbanization in my country, a large number of temporary support projects have appeared in high-rise building projects, subway station construction, air defense projects, tunnel projects, mine underground projects, etc. These projects use a large amount of steel, cement commercial concrete and other building materials. Because it cannot be recycled, it not only wastes a lot of building materials, but also forms a great underground pollution, especially for the reconstruction of the city, including deep foundation pits on surrounding floors, underground air defense facilities, underground pipeline layout, etc., which will bring construction obstacles
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[0024] Refer to attached figure 1 to attach image 3 , in the figure: bottom pointed cover 1, wire plug 2, thick-walled steel pipe 3, top flat cover 4, recyclable crown beam 5, anchor cable 6, waist beam 7, recyclable steel pipe pile 8 without grouting.
[0025] In this embodiment, there are two ways to manufacture steel pipe piles: threaded connection and welded connection.
[0026] Production of threaded steel pipe piles: both ends of the thick-walled steel pipe 3 are welded with internal and external threaded joints through the seam to form a steel pipe pile (completed in the processing workshop); A section of steel pipe piles is connected by threads; the steel pipe pile with the bottom tip cap 1 is the starting end, and each section of steel pipe piles is connected two by two through internal and external threaded joints, and the top of the steel pipe pile is the top Flat cover 4, see attached figure 1 .
[0027] Fabrication of welded steel pipe piles: At the support s...
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The invention relates to a construction process of non-grouted recyclable steel-pipe piles. The construction process includes: leveling and clearing a site, manufacturing steel-pipe piles, measuring, positioning and setting out, positioning pitch of holes, positioning a drill rig, drilling, sinking the steel-pipe piles in time after clearing the holes, setting recyclable top beams, excavating in the vertical direction, hanging nets among the piles to protect the surface, and recycling the steel-pipe piles. A manufacture method of steel-pipe piles includes threaded connection or welded connection. Each steel-pipe pile comprises a bottom pointed seal cover, a screwed plug, a thin-walled steel pipe, and a top flat seal cover. The steel-pipe piles and anchor cables are arranged crisscross to form a steel-pipe pile supporting system which is locked with the top beams and middle beams; nets are hung among the piles to form the supporting structure. The construction process has the advantages that grouting is not required, deep foundation pit temporary supporting is performed in geologic structures of silt, clay, sand, strong-weathered rock layers, the supporting structure has high rigidity and good supporting effect, the cost is saved, the steel-pipe piles are easy to recycle, and underground metal contamination is avoided.
Description
Technical field: [0001] The invention relates to a steel pipe pile used in the construction industry, in particular to a construction process of a recyclable steel pipe pile without grouting. Background technique: [0002] With the acceleration of urbanization in my country, a large number of temporary support projects have appeared in high-rise building projects, subway station construction, air defense projects, tunnel projects, mine underground projects, etc. These projects use a large amount of steel, cement commercial concrete and other building materials. Because it cannot be recycled, it not only wastes a lot of building materials, but also creates great underground pollution, especially for urban reconstruction, including deep foundation pits on surrounding floors, underground air defense facilities, underground pipeline layout, etc., which bring construction obstacles. After the temporary support project is completed, recycling support materials and reusing recycled ...
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IPC IPC(8): E02D17/04E02D5/28E02D5/52
Inventor 张利民张峰潘科峰张探史兆峰李冬梅
Owner TAIAN DAIZHONG ELECTROMECHANICAL TECH DEV CO LTD