Recyclable cylindrical structure and usage method thereof

A usage method of a recyclable cylindrical structure comprising a plurality of prefabricated cylindrical units, wherein the usage method comprises a constructing method and a recycling method, and each prefabricated cylindrical unit of the plurality of prefabricated cylindrical units is provided with:

• a ring block coaxially fixed on a top of a corresponding prefabricated cylindrical unit;
• a plurality of first connection elements circumferentially fixed on a side wall of the ring block, wherein each first connection element of the plurality of first connection elements is wedge-shaped with tip up, and a bottom of each first connection element is formed as a first plane for jamming;
• a ring slot coaxially formed on a bottom of the corresponding prefabricated cylindrical unit;
• a plurality of second connection elements circumferentially fixed on an inner side wall of the ring slot, wherein each second connection element of the plurality of second connection elements is wedge-shaped with tip down, a top of each second connection element is formed as a second plane for jamming and each first connection element and/or each second connection element has an elasticity to radially deform;
• two first sealing rings arranged on the top of the corresponding prefabricated cylindrical unit, with the ring block positioned between the two first sealing rings;
• a second sealing ring arranged on a top of the ring block;
• and
• a plurality of auxiliary elements arranged on an outer side wall of the corresponding prefabricated cylindrical unit;
• and
• wherein:
• the constructing method comprises:
• S100a:
• simultaneously constructing a foundation and fabricating the plurality of prefabricated cylindrical units;
• S200a:
• simultaneously installing a first hoisting device and carrying out a trial installation on ground for every two adjacent prefabricated cylindrical units of the plurality of prefabricated cylindrical units;
• S300a:
• installing a first prefabricated cylindrical unit on the foundation as a bottommost prefabricated cylindrical unit of the recyclable cylindrical structure;
• S400a:
• hoisting a second prefabricated cylindrical unit on the first prefabricated cylindrical unit to cause the ring block of the first prefabricated cylindrical unit to be inserted into the ring slot of the second prefabricated cylindrical unit, to cause the plurality of first connection elements fixed on the side wall of the ring block of the first prefabricated cylindrical unit to be jammed with, one-to-one, the plurality of second connection elements fixed on the inner side wall of the ring slot of the second prefabricated cylindrical unit, and to simultaneously cause the two first sealing rings arranged on the top of the first prefabricated cylindrical unit to be in contact with the bottom of the second prefabricated cylindrical unit and cause the second sealing ring arranged on the top of the ring block fixed on the first prefabricated cylindrical unit to be in contact with a bottom of the ring slot formed in the second prefabricated cylindrical unit;
• S500a:
• grouting a gap between the side wall of the ring block of the first prefabricated cylindrical unit and the inner side wall of the ring slot of the second prefabricated cylindrical unit by slurries;
• S600a:
• lifting a crossbeam of the first hoisting device and repeating steps S400a and S500a until a last prefabricated cylindrical unit of the plurality of prefabricated cylindrical units is installed as a topmost prefabricated cylindrical unit of the recyclable cylindrical structure;
• and
• S700a:
• dismantling the first hoisting device;
• and
• the recycling method comprises:
• S100b:
• installing a second hoisting device;
• S200b:
• pushing first two auxiliary elements of the plurality of auxiliary elements arranged on the outer side wall of the topmost prefabricated cylindrical unit, using a pushing mechanism arranged on the second hoisting device, to drive the topmost prefabricated cylindrical unit to horizontally rotate relative to a third prefabricated cylindrical unit that is adjacent to and below the topmost prefabricated cylindrical unit, such that the plurality of first connection elements fixed on the side wall of the ring block of the third prefabricated cylindrical unit are dis-jammed with, one-to-one, the plurality of second connection elements fixed on the inner side wall of the ring slot of the topmost prefabricated cylindrical unit;
• S300b:
• lifting the topmost prefabricated cylindrical unit, using the second hoisting device, to cause the ring block of the third prefabricated cylindrical unit to be detached from the ring slot of the topmost prefabricated cylindrical unit;
• S400b:
• lowering the topmost prefabricated cylindrical unit to ground, using the second hoisting device;
• S500b:
• lowering a crossbeam of the second hoisting device and repeating steps S200b, S300b and S400b until the bottommost prefabricated cylindrical unit is uninstalled from the foundation;
• and
• S600b:
• dismantling the second hoisting device.