Multi-purpose loading bench for vertical compression and pull-out tests of small-scale models of half-pile piles

Abstract

The invention discloses a half-face pile small-scale model vertical pressure-resistant pulling-resistant test multipurpose loading rack and relates to the technical field of test equipment manufacture. The rack is composed of a loading table plate, support legs, vertical columns, a cross beam, fixing screws and horizontal pressing beams. The two vertical columns are fixed on the two sides of the loading table plate respectively. The two ends of the cross beam are fixed to the two vertical columns respectively. The loading table plate is provided with at least two microscler groove holes. Two vertical fixing bolts are arranged in each groove hole. The upper portions of two fixing bolts on each side penetrate through the same corresponding horizontal pressing beam. The top of each fixing bolt is sleeved with an upper nut. During an operation, a transparent container is placed among the four fixing bolts of the loading table plate; the upper nuts are screwed tightly, so that the horizontal pressing beams press on the side edge of the transparent container; a jack is installed below the cross beam, and a telescopic pole of the jack is matched with a half-face pile to conduct a test. According to the rack, a test result is precise; the operation is convenient; assembly and disassembly are easy.

Description

technical field [0001] The invention relates to the technical field of test equipment manufacturing, and relates to a model test device for pile foundations. Background technique [0002] Concrete expansion disc pile is a new form of pile foundation in recent years. It forms expansion discs on different parts of the pile body through construction techniques such as extrusion, rotary expansion, and drilling expansion, so as to improve the bearing capacity of the pile. Due to the special structure of the pile body of this type of pile, its mechanical performance is relatively complicated. At present, the research on concrete pouring piles is basically finite element simulation analysis, and a small amount of field test verification is assisted, so it is impossible to truly understand the damage of the soil around the pile. Because the actual pile test project of the pile foundation is relatively large, the cost is relatively high, and it needs to be carried out according to t...

AI Technical Summary

Problems solved by technology

Due to the special structure of the pile body of this type of pile, its mechanical performance is relatively complicated.

At present, the research on concrete pouring piles is basically finite element simulation analysis, and a small amount of field test verification is assisted, so it is impossible to truly understand the damage of the soil around the pile.

Due to the relatively large field pile test project of the pile foundation, the cost is relatively high, and it needs to be carried out according to the engineering requirements, and the scope of application is small, so it brings difficulties to the test research of the pile foundation

The small-scale model test can solve the problems of high cost and small scope of application

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