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Unsaturated and saturated soil tensile strength tester based on electric control loading

A technology of tensile strength and test equipment, applied in the direction of applying stable tension/compression to test material strength, measurement equipment, strength characteristics, etc., can solve problems such as unsuitable or remodeled soil that cannot be applied to saturated or high humidity, Achieve the effect of simple structure, guaranteed precision and convenient operation

Inactive Publication Date: 2011-08-17
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to provide an unsaturated and saturated soil tensile strength test device based on electric control loading, which solves the problem that existing devices cannot be applied to undisturbed or remodeled soil with high saturation or high humidity

Method used

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  • Unsaturated and saturated soil tensile strength tester based on electric control loading
  • Unsaturated and saturated soil tensile strength tester based on electric control loading
  • Unsaturated and saturated soil tensile strength tester based on electric control loading

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 with figure 2 As shown, the present invention is based on the electric control loading unsaturated and saturated soil tensile strength test device, which includes a beam 3, a column 5 and a base 7 fixedly connected sequentially from top to bottom, and the base 7 is provided with a soil beam positioning operating system 6. The beam 3 is provided with a loading system 1 and a measuring system 4 .

[0034] Wherein, the soil beam positioning operating system 6 includes a pressure chamber side plate 19, a transparent upper cover 15, a micro air groove plate 25, a limit pin 20, a middle support plate 18, a movable plate 22 and a thrust pin 23. The pressure chamber side plate 19 is fixed on the base 7, and the transparent upper cover 15 is detachably mounted on the top of the pressure chamber side plate 19, and the transpa...

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Abstract

The invention discloses an unsaturated and saturated soil tensile strength tester based on electric control loading, comprising a cross beam, a vertical column and a base, which are connected from top to bottom in turn, wherein the base is provided with a soil beam positioning operation system; the cross beam is provided with a loading system and a measuring system. The tester of the invention solves the problem that the existing device can not be suitable for undisturbed soil or remoulded soils which are saturated or with a relatively high humidity on the basis of effectively overcoming the friction force and the adsorptive action of the earth beam bottom and the base.

Description

technical field [0001] The invention relates to a test device for measuring the tensile strength of soil, in particular to a test device for the tensile strength of unsaturated and saturated soil based on electric control loading. Background technique [0002] In many geotechnical engineering, cracks will occur in the process of loading the soil, and these cracks are often caused by the tensile failure of the soil. For example, when the slope soil undergoes a certain deformation, shear failure or tensile failure will occur in the soil, resulting in cracks. These cracks are generally large in scale and penetrate deep into the slope soil, causing serious harm to the soil slope engineering. Especially for structural loess slope engineering, because of its relatively small displacement and deformation and sudden damage, catastrophic consequences often occur. In addition, many cohesive soils behind retaining walls and cohesive soil slope landslides have cracking phenomena. Altho...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/02
Inventor 李荣建郑文吴利言
Owner XIAN UNIV OF TECH