Sample preparation method of cylindrical soil sample for cohesive soil tensile strength experiment
A technology of tensile strength and cylindrical shape, which is applied in the field of sample preparation of cylindrical soil samples for cohesive soil tensile strength experiments, and can solve problems such as easy to pull apart, uneven distribution of soil strength, and large compaction
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[0031] The technical solution of the method of the present invention will be described in further detail below in conjunction with the drawings and specific embodiments of the description.
[0032] The sample preparation method proposed by the invention can make the failure surface of the sample occur in the middle of the sample when the triaxial tensile strength test is carried out, and be located in the tensile stress distribution area of the sample, so as to obtain representative tensile strength values of cohesive soil.
[0033] The measures that the present invention takes have two points:
[0034] One is to change the production process of the sample to eliminate the weak surface formed by the horizontal layering and compaction of the sample, so that the sample has no original strength defects when it is pulled;
[0035] The second is to strengthen the end of the sample, which is greater than the strength of the middle part of the sample, so that the failure position...
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