An Experimental Apparatus for Deformation of Civil and Engineering Materials Suitable for Multi-point Measurement

Abstract

The civil material deformation experiment instrument suitable for multi-point measurement of the present invention includes a metal cylinder, an upper perforated plate and a lower perforated plate. The vertical beam is provided with a support beam, and the support beam is provided with a spring contact; the spring contact is composed of a contact rod, a housing, a cross bar and a return spring, and the housing is movably fixed on the support beam through a fixing sleeve , the touch bar runs through the shell up and down, the cross bar is fixed to the touch bar, and a spirit level is provided on the support beam to indicate whether it is in a horizontal state. The experimental instrument of the present invention can realize the measurement of multi-point deformation of the experimental material through the movement of the spring contact on the supporting beam; it has the advantages of simple structure, accurate data and convenient measurement, and effectively reduces the volume of the experimental instrument , it is convenient to put it into the existing water bath for heating to maintain stable experimental conditions.

Description

technical field [0001] The present invention relates to a kind of civil material deformation experiment instrument suitable for multi-point measurement, more specifically, relates to a kind of civil material deformation suitable for multi-point measurement which uses the displacement of the touch rod to characterize the deformation of the experimental material Experimental apparatus. Background technique [0002] In civil material tests, many materials involve deformation tests, such as expansive soil, steel slag materials, collapsible loess, etc. In many cases, such as expansibility tests, it is necessary to immerse the specimen in hot water to maintain the water temperature at 80°C ± 3°C and continue More than 6h. The following problems exist in the actual operation of the test stipulated in the specification: 1. In the actual test, such as the steel slag expansion test, the height of the test piece is 15cm, plus the bottom plate, dial gauge and other instruments, the int...

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Problems solved by technology

The following problems exist in the actual operation of the test stipulated in the specification: 1. In the actual test, such as the steel slag expansion test, the height of the test piece is 15cm, plus the bottom plate, dial gauge and other instruments, the internal height of many conventional constant temperature water tanks is not enough , causing the problem that the cover cannot be closed, and it is difficult to maintain the experimental conditions of 80°C±3°C; 2. The surface of many dial indicators on the market is plastic, which will deform and fall off in a high temperature environment, causing Unable to obtain accurate experimental results

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