Foundation pile self-balancing bearing capacity load box overall waterproof performance detection and calibration device

Abstract

The invention relates to a load box waterproof performance detection and calibration device, and belongs to the field of civil engineering. The invention discloses a foundation pile self-balancing bearing capacity load box overall waterproof performance detection and calibration device. The detection and calibration device comprises a bearing plate device, an independent reverse stand column device and a dynamic water level testing device, wherein the bearing plate device comprises a bearing plate and a sealing strip, the bearing plate serves as a supporting plate of a load box, the sealing strip is used for preventing the load box from overflowing in the waterproof detection process, the independent reverse stand column device is fixedly mounted on the bearing plate and provides support for the dynamic water level testing device, and the dynamic water level testing device is used for recording the change condition of the liquid level in the load box. The method has the following advantages that 1, after the loading test of the load box is completed, the grouting quality outside a cylinder can be ensured; 2, the requirement for waterproofness detection of the I-type load box in theJiangxi province engineering construction standard is met; and 3, the waterproof performance of the product can be known in time, so that effective slurry is injected, and the pile body section strength is improved.

Description

technical field [0001] The invention relates to a device for detecting and calibrating the waterproof performance of a load box, which belongs to the field of civil engineering. Background technique [0002] The load boxes are divided into Class I and Class II according to the requirements of test piles and engineering piles. Type I load boxes should have the following performances: 1) provide thrust for testing the bearing capacity of foundation piles; 2) after testing the bearing capacity of foundation piles, the conditions for grouting inside and outside the load box should be met. However, during the testing process of the self-balancing method of pile bearing capacity, it was found that after the self-balancing load box is buried, the grouting outside the cylinder will be affected by groundwater, and the strength of the injected grout cannot reach the strength of the foundation pile itself, resulting in a decrease in the strength of the pile body. Contents of the inve...

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Problems solved by technology

However, during the testing process of the self-balancing method of the foundation pile bearing capacity, it was found that after the self-balancing load box is buried, the grouting outside the tank will be affected by groundwater, and the strength of the injected grout cannot reach the strength of the foundation pile itself, resulting in a decrease in the strength of the pile body

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