Semi-inverse construction method of cyclone well

Abstract

The invention discloses a semi-inverse construction method of a cyclone well. The method comprises the following steps: 1) measuring, positioning and determining the center and the position of the well wall of the cyclone well; 2) firstly excavating the uppermost joint of well wall foundation pit; 3) performing earth excavation on the second section for forming the second joint of the well wall foundation pit; 4) binding the second joint of well wall steel bars; 5) mounting the second joint of well wall inside formwork; 6) pouring the second joint of well wall concrete; 7) completing the earth taking of the third section for forming the third joint of the well wall foundation pit; 8) binding the third joint of the well wall steel bars; 9) mounting the third joint of the well wall inside formwork; 10) pouring the third joint of well wall; 11) repeating the steps 8)-10) till the construction of the lowermost joint of the well wall is completed; 12) repeating the steps 9)-10) to complete the construction of the uppermost joint of the well wall; and 13) completing the construction of a concrete structure in the well.The method is suitable for construction environments which have better geological conditions and are limited by surrounding conditions.

Description

technical field [0001] The invention relates to a construction method of a swirl well, in particular to a semi-reverse construction method of a swirl well. Background technique [0002] Generally, the caisson sinking method is used for the construction of the swirl well, which has relatively high requirements on the geological conditions and the construction site. The surrounding soil will subside during the sinking process, which poses many safety hazards to the surrounding buildings. At present, reinforced concrete cast-in-situ piles or underground diaphragm walls are often used as supporting structures, and swirl well construction can be carried out in construction areas with poor geological conditions. Successful examples. However, the geological conditions are relatively good, and due to the limitation of the surrounding conditions, the subsidence method cannot be used for construction. Considering the construction technology and engineering cost, it is necessary to ex...

AI Technical Summary

Problems solved by technology

[0002] Generally, the caisson sinking method is used for the construction of the swirling well, which has relatively high requirements on the geological conditions and the construction site. During the sinking process, the surrounding soil will subside, which poses many safety hazards to the surrounding buildings.

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