Patent ID: 11946217
Assignee: CHINA RAILWAY TUNNEL GROUP THIRD DIVISION CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 8:
9. A jacking construction method by using the top plate jacking device for V-shaped columns according to claim 1, comprising:
S1. drilling a pile hole at a specified location on the construction surface and pouring the cast-in-place bearing platform at a bottom of the pile hole;
S2. assembling the plurality of vertically connected column segments, which are prefabricated, on an outside of the pile hole, and connecting the two adjacent column segments of the plurality of vertically connected column segments above and below through the connecting component; and after a connection is completed, hanging the temporary support pile vertically into the pile hole, so that a bottom of the temporary support pile is inserted on the cast-in-place bearing platform;
S3. after placing the support block on the plurality of pillars, mounting the hydraulic jack at the top of the temporary support column, and placing the top plate on a plurality of the support blocks to form a temporary support to the top plate;
S4. after construction of the V-shaped columns is completed and a strength requirement is met, starting the hydraulic jack to jack the top plate up a certain distance and pulling out the plurality of the support blocks;
S5. removing the hydraulic jack; and
S6. releasing the connection between the two adjacent column segments, and removing the plurality of vertically connected column segments through a cooperation of a crane and a sling.