FIELD: chimney production, assemblage, repair and reconstruction, particularly for large chimneys having diameter of not less than 4 m at chimney base.
SUBSTANCE: chimney shaft to be arranged in sections inside chimney has relieving means to unload shaft sections of lower section weights. Relieving means is mounted along chimney height by connecting each detachable section with cylindrical pipes or rods. Each transversal dimension of cylindrical pipes is 75-250 times less than chimney diameter and preferably is equal to 50-80 mm. Transversal dimension of rods is 250-700 times less than chimney diameter and preferably is equal to 15-50 mm. Cylindrical pipes and/or rods are located in shaft hollow in parallel to axis thereof from outer shaft axis and/or inside chimney walls. Pipes and/or rods are connected to chimney in upper part thereof and take all weight of shaft sections. Method of chimney repair with the use of above shaft is also disclosed.
EFFECT: reduced labor inputs for chimney production, transportation and assemblage, increased erection rate, reduced material consumption, improved maintainability.
8 cl, 14 dwg
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