A pile bearing capacity testing device

Abstract

The invention provides a pile bearing capacity detection device, which includes a frame, a column, a jack, several boxes and several plug-in units, a through hole is arranged in the middle of the frame, the jack is inserted in the through hole, and the lower end of the jack is placed The upper end of the test pile; the column is placed on the upper end of the jack; the frame is evenly provided with a number of guide holes located on the sides of the through hole, and the lower end of the box is provided with ejector rods. The guide hole, the lower part of the box is in contact with the peripheral side of the guide hole through the elastic member; the plug-in unit is inserted into the hole arranged on the foundation and located under each box, and the plug-in unit includes a sleeve and is placed in the sleeve. The support rod is coaxially and elastically inserted into the sleeve, and the side wall of the sleeve is evenly opened with a number of operation holes, and a number of swing rods are hinged on the support rod. The ends of the swing rod are placed in the operation holes, and the support rod The upper end is in contact with the lower end of the push rod. The invention is easy to implement and can be used repeatedly.

Description

technical field [0001] The invention relates to a pile bearing capacity detection device. Background technique [0002] The existing pile bearing capacity detection technology usually adopts the surcharge method or the anchor pile method. The surcharge method needs to directly load a large amount of heavy objects on the top of the test pile according to the detection requirements, and use the jack to transfer the weight of the heavy objects to the test pile. The upper end forms a pressure on the test piles. This kind of loading process requires prefabricated a large number of concrete components, and the loading process is cumbersome. Every time a pile is tested, it needs to be overturned and reloaded for the next inspection; while the anchor pile method uses fixed The anchor piles set in the foundation combined with the cables generate reverse tension and load the upper end of the test piles. Only when the load range of the anchor piles is exceeded, some heavy objects need ...

AI Technical Summary

Problems solved by technology

[0002] The existing pile bearing capacity detection technology usually adopts the surcharge method or the anchor pile method. The surcharge method needs to directly load a large amount of heavy objects on the top of the test pile according to the detection requirements, and use the jack to transfer the weight of the heavy objects to the test pile. The upper end forms a pressure on the test piles. This kind of loading process requires prefabricated a large number of concrete components, and the loading process is cumbersome. Every time a pile is tested, it needs to be overturned and reloaded for the next inspection; while the anchor pile method uses fixed The anchor piles set in the foundation combined with the cables generate reverse tension and load the upper end of the test piles. Only when the load range of the anchor piles is exceeded, some heavy objects need to be loaded to help pressurize them. However, the components of the anchor piles take a long time and cannot be repeated. Still inconvenient to use

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