Upper-stacking and lower-hanging combined load static load test pile apparatus

Abstract

The invention relates to an upward-stacking and downward-hanging combined loading static load pile test device, wherein a steel structure bracket of a main beam is arranged on the ground at two sides of a foundation pile; two ends of the main beam are arranged on the steel structure bracket of the main beam; a jack is placed between the main beam and the foundation pile; a secondary beam is arranged on the main beam along a direction vertical to the main beam, and the secondary beam and the main beam form a ballast platform; an upward-stacking steel structure load reinforcing box is arranged on the secondary beam, and a secondary beam support saddle which also serves as a lower load box and another lower load box are hung downwards on two sides of the secondary beam along the width direction of the secondary beam through connecting pieces; a square reinforcing baffle or a reinforcing baffle with the shape like a Chinese character 'jing' is positioned and fixed in the upward-stacking steel structure load reinforcing box; and the side wall of the jack close to the lower load boxes is provided with a displacement sensor for measuring the settling amount of the foundation pile. The upward-stacking and downward-hanging combined loading static load pile test device adopts lifting equipment to add counterweight materials into the upward-stacking steel structure load reinforcing box, and the upward-stacking steel structure load reinforcing box is lifted off once when a static load pile test is finished. The upward-stacking and downward-hanging combined loading static load pile test device has the advantages of safe and fast construction, mechanical lifting, high efficiency, and labor and cost conservation.

Description

technical field

[0001] The invention relates to a stacking device for testing the static load vertical bearing capacity of construction engineering foundations and pile foundations, in particular to a static load test pile device for combined loads of upper stacking and lower hanging. Background technique

[0002] Construction projects, especially the construction of high-rise buildings and large structures, require the use of a large number of pile foundations. According to the requirements of the national code for quality acceptance of foundation and pile foundation projects, static load testing of the bearing capacity of test piles and engineering piles should be carried out to determine and test the bearing capacity of single piles, which is a mandatory clause for the quality acceptance requirements of foundation piles. The traditional static load test ballast platform reaction device is to use sand bags to counterweight the ballast platform; stacking sand bags is very h...

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