Method for determining uniaxial compressive strength damage of red mudstone after dry-wet cycle
A technology of uniaxial compressive strength and dry-wet cycle, which is applied in the direction of applying stable tension/pressure to test material strength, strength characteristics, instruments, etc., and can solve the problems of long and cumbersome test periods
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[0028] The present invention carries out technical verification by the method of test, and concrete test process is as follows.
[0029] Uniaxial compressive strength test of red bed mudstone under dry-wet cycle:
[0030] On-site sampling and indoor sample preparation and dry-wet cycle test are carried out according to the specifications, and the uniaxial compressive strength test is carried out on the samples that have completed the dry-wet cycle. The loading rate is controlled by the formula, and the loading rate is set at 0.12mm / min, and the loading rate is maintained until the mudstone sample is destroyed.
[0031] Analysis of uniaxial compressive strength test results:
[0032] The results of uniaxial compression test of red bed mudstone under the action of dry-wet cycle are shown in figure 2 . From figure 2 It can be seen from the figure that the uniaxial compressive strength of the red bed mudstone decreases with the increase of the number of dry-wet cycles; under...
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