Uplift pile and uplift static load test method thereof

Abstract

The invention relates to an uplift pile and an uplift static load test method thereof, and relates to the technical field of foundation pile detection. An uplift pile comprises a pile body and a grouted core located in the pile body. The pile body is provided with a bearing plate, and the upper surface of the bearing plate abuts against the lower end wall of the pile body or / and the lower end wall of the grouted core. The bearing plate is connected with a lifting piece, and the end, away from the bearing plate, of the lifting piece extends upwards from the interior of the grouted core to the exterior of the upper end of the pile body. The bearing plate is provided with an installation hole in a penetrating mode in the thickness direction of the bearing plate, and the lifting piece can penetrate through the installation hole and is provided with a fixing piece used for abutting against the lower surface of the bearing plate. The upper end of the lifting piece is used for being connected with a building at the upper end of the pile body. During construction, the upper end of the lifting piece is connected with a building at the upper end of the pile body; the bearing plate is matched with the fixing piece and the lifting piece, so that the pile body or the grouted core can be integrally pressed, the whole and the grouted core can be integrally stressed, and the ultimate bearing capacity of a single pile of the uplift pile is increased.

Description

technical field [0001] The present application relates to the technical field of foundation pile detection, and in particular, to an uplift-resistant pile and a test method of uplift-resistant static load. Background technique [0002] After the construction of the uplift pile is completed, it is necessary to use a special sample device to carry out the uplift static load test to detect the single pile uplift ultimate bearing capacity of the uplift pile. The greater the ultimate bearing capacity of single pile uplift, the stronger the bearing capacity of the uplift pile. [0003] A static load test device for pile uplift resistance, refer to figure 1 , which includes anchor piles 2 embedded on both sides of the test pile 1 and a dial indicator 3 that is fixedly installed near the test pile 1; The head of the sub-table 3 is in contact with the top wall of the pile body 111; the upper ends of the two anchor piles 2 jointly carry the support beam 21; the support beam 21 is pr...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that during testing, the pile body is likely to crack and be damaged before it moves up as a whole, thus resulting in the measured ultimate pull-out bearing capacity of the single pile being relatively small, that is, the load-bearing capacity of the pull-out pile is relatively small. Poor, so needs to be improved

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