Construction method and construction structure of fractional decomposition tank foundation using pile foundation
A construction method and a technology of decomposing grooves, which are applied in the direction of infrastructure engineering and construction, can solve the problems of long construction period, difficulties in the construction of manual hole-digging piles or mechanical hole-forming piles, etc., and achieve simple construction, shorten the construction period, and reduce the construction cost. effect of difficulty
Inactive Publication Date: 2014-06-18
GUIYANG AL-MG DESIGN & RES INST
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Problems solved by technology
Therefore, when constructing the foundation of the decomposition tank at the top, it is necessary to fill in about 9 meters of earthwork, which makes the construction of manual hole-digging piles or mechanical hole-forming piles difficult.
Long construction period
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[0023] The invention will be further described in detail below in conjunction with the accompanying drawings, but not as any limitation to the invention.
[0024] The invention relates to a construction method when pile foundations are adopted for graded decomposition groove foundations. The method is constructed according to the following procedures: pile foundation construction→retaining wall construction→backfill soil construction→pile top cap platform construction. The pile foundation construction is carried out according to the following procedures: construction of underground piles below field level → construction of contact beams → construction of above-ground piles above field level. Underground piles are constructed according to conventional techniques. Contact beams and piles on the ground are constructed by the formwork method. Before the backfill construction, brush the asphalt mastic on the pile surface on the ground, and the total thickness of the asphalt ma...
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Abstract
The invention discloses a construction method and a construction structure of a fractional decomposition tank foundation using a pile foundation. The method performs construction according to the following processes: construction of the pile foundation, construction of a retaining wall, construction of backfill, and construction of a bearing platform on top of a pile. The construction structure is characterized in that linking beams are added at joint places of underground piles and overground piles. According to the invention, the existing construction method is changed, firstly, construction of the pile foundation of the decomposition tank is performed, and then construction of ramps is performed, so that construction difficulty of manual hole digging or mechanical hole forming is greatly reduced; moreover, linking beams are added among the piles, in this way, the foundation of the decomposition tank is steadier and also relatively improved in strength; construction of the linking beams can be performed before construction of the ramps and therefore is also very convenient. By adopting the method disclosed by the invention, the construction is simple, a construction period is greatly shortened, the stability and the strength of the foundation of the decomposition tank are enhanced.
Description
technical field [0001] The invention relates to a construction method and structure when pile foundations are used for graded decomposition groove foundations, and belongs to the technical field of construction of graded decomposition groove foundations in alumina production. Background technique [0002] In the alumina process flow, the graded decomposition process needs to be completed by a series of decomposition tanks with different tank bottom elevations. In order to meet this special requirement, a set of decomposition tanks needs to be arranged on a slope with a height-to-length ratio of about 3%. However, in the actual infrastructure construction process, sometimes it is difficult to find a site that meets the requirements, so it is necessary to build a slope on a flat site (hereinafter referred to as field level) with a length of about 300 meters, a slope width of about 42 meters, and a slope top height of about 9 meters long slope. Then build a group of decomposi...
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Login to View More IPC IPC(8): E02D27/38E02D27/14E02D27/16
Inventor 江利
Owner GUIYANG AL-MG DESIGN & RES INST