Pile testing system for bridge single pile anchoring method based on shoulder pole principle

Abstract

The invention discloses a pile testing system for a bridge single pile anchoring method based on the shoulder pole principle. According to the pile testing system for the bridge single pile anchoringmethod based on the shoulder pole principle, two anchored piles are equidistantly arranged on two sides of a test pile, a jack is arranged on the top of the test pile and the midpoint of a steel transverse beam is braced by the jack, and two ends of the steel transverse beam are vertically connected to the anchored piles through steel suspenders. According to the 'two-anchored pile-one-test pile system', requirements are met by the composition strength, rigidity and stability of the system correspondingly; test equipment such as two anchored piles, multiple rigid secondary beams and multiple sets of connection devices are directly reduced; occupation requirements for construction sites and input requirements for hoisting equipment are lowered; and the pile testing cost is lowered. A manufacturing manner of workshop machining is adopted by components such as locating plates, the steel transverse beam, the steel suspenders and connection barrels correspondingly. Manufacturing of the components and bridge onsite construction pile foundation are conducted simultaneously, and the pile testing construction time is shortened. A mechanical manner is adopted, and main reinforcing bars are directly anchored to the steel suspenders and the connection barrels through anchoring plates. Construction is convenient and efficient, operation is convenient, and installing efficiency and the anchoring quality are improved. The pile testing system for the bridge single pile anchoring method based on the shoulder pole principle is simple in force bearing, clear in force transmission and convenient to operate; and the project construction time and cost can be lowered conspicuously.

Description

technical field [0001] The invention relates to a single-pile anchor pile method test pile system, in particular to a bridge single-pile anchor pile method test pile system based on the pole-pole principle. Background technique [0002] Anchor pile method test pile is a common test method for the bearing capacity of bridge single piles. The traditional test pile system consists of four anchor piles, one test pile, main beam, secondary beam, steel strand or steel connecting rod and loading test device. It is called "four anchors and one system". [0003] In the traditional way, five piles are first constructed at the foundation to be tested, including one test pile, which is located in the center of the foundation to be tested, and four anchor piles, which are located around the test pile and arranged symmetrically at a certain distance. Install the jack on the top of the test pile, install the main beam on the top of the jack, install the secondary beam at both ends of the ...

AI Technical Summary

Problems solved by technology

[0005] 1) Four anchor piles need to be constructed for one test pile, which occupies a large space, has a long construction period and high project cost;

[0006] 2) In addition to the main beam, secondary beams need to be configured, and there are many hoisting procedures and large project investment;

[0007] 3) Use steel strands or steel bars to connect the secondary beams and anchor piles, and either use tensioning or welding for anchoring. It is difficult to guarantee the quality of on-site construction, requiring a lot of equipment and high process requirements.

Images